Attack System Generalization 3

Summary

Third session on E:/a327ex/attack-template/ — the self-contained Anchor 2 project that ports every Orblike v1 attack carrier as a reusable visual-only module. Picked up after sessions 1-2 (scaffold + projectile carrier + instant area carrier) and shipped: persistent (DoT) area mode, the full beam carrier (instant + persistent), the flicker-strike carrier, a five-layer render stack, an engine-backed hit-stop system, and an fx_effect primitive. By session end the template has four carriers done (projectile, area, beam, flicker); only polygonal/big-rock and the bespoke carriers remain.

Persistent (DoT) areas:

• Extended area.lua with a persistent mode selected by passing duration (+ optional tick_rate, default 0.5s). Instant mode unchanged.
• Persistent lifecycle: 0.25s tween-up (vs 0.05s instant), timer_every(tick_rate, 'tick', ...) damage loop with a per-area hit_cooldowns[entity_id] table gating re-hits, blink+kill after duration. Ticks continue through the blink phase (matches v1).
• Per-tick: e:hit(damage, 0) with hit_vol=0 to silence the per-enemy headshot sound (the single dot_tick plays once per tick instead — v1 line 8685 parity). Lighter particles than instant (1-2, vel 30-80, w=4, no hit_effect sprite). On any hit: dot_tick sound, spring pull 0.1, 0.1s flash, arc-speed spike +1.25π capped at 3π.
• dot_tick sound ported (Click sound 37 + Body Fall 18.ogg, vol 0.49, v1 line 14). N key toggles instant↔persistent in the demo.

Persistent-area visual iteration (arc decay + breathing):

• User asked the circle's arc-spin to decay when no hits land recently. Added exponential decay of arc_speed toward a stored arc_baseline (rate k=3, ~95% decay/sec). Tick spikes raise it; decay drags it back.
• For non-smooth-circle persistent shapes, added a slow scale "breathing" (1 + 0.05*sin(phase), ~0.5 Hz, random start phase) since they have no arcs as a life signal. Applied as a multiplier on the spring scale s at draw time, gated to skip the smooth circle.

Beam carrier — instant (beam.lua new):

• Scoped via AskUserQuestion: visual = v1 railgun_flash (clump-retract), no charge phase, mouse:3 trigger.
• Beam is internally a polyline (self.path). Non-homing = 2 points; the shared pipeline (wall clip, damage, dash draw) walks the path.
• Damage: rotated-box query (query_entities_box) covering the beam, hit window width*6 (±width*3 perp, v1 line 3982).
• Visual: railgun_flash — dashes built once, grouped into clumps of 2-4 whose visible_start/visible_end tween toward each clump's midpoint with staggered delays over duration (0.25s). Wall raycast clips the path per-segment.
• spawn_beam(caster, opts) mirrors spawn_projectile.

Beam tip FX iteration:

• Added a tip impact hit_circle + particles at the path endpoint.
• User: drop the beam_cast sound entirely → removed sound, asset, volume entry.
• User: particles should be radial not coned toward the caster → changed to random_float(0, 2*math.pi).
• Color direction: user wanted the hit_circle to flash white first then bleed to edition color. Initially built backwards; the fraction also needed lowering (0.6→0.3) because the hit_circle shrinks via cubic_in_out and at fraction 0.6 the disc is ~1.8px — the flash was happening on an invisible dot. Final: change_color(0.3, pc) starting white.

Five-layer render stack:

• User requested splitting the 2-layer setup into floor (bg only) / wall / game (player + seekers + projectiles + areas + beams) / effects (all fxs) / debug. Each its own FBO, drawn bottom-to-top. FX now always read above the carriers that spawned them — motivated by the beam-tip hit_circle appearing behind the beam line.

Beam homing — heavy iteration:

• Ported v1's build_homing_path (line 10750): walk forward step_size units, bend heading toward nearest enemy within proximity. Exposed homing, homing_turn_rate, homing_proximity, homing_step_size. J toggles.
• Built a tuning playground: frozen seekers in a jagged line, 600-unit beam, damage=0, six tuning keys (1/2 turn rate, 3/4 proximity, 5/6 step size), an always-on HUD, and a seeker.frozen flag.
• User reported the path drifting off-axis / looping. Tried a cone clamp (max_deviation ±45°), then a cone filter (only home toward enemies inside the reachable cone). User rejected the accumulated complexity: "What's the simplest version of the path building algorithm you can build?" — reverted to bare find-nearest + bend + step.
• Rebuilt incrementally: turn_rate became a proportional multiplier (path_r += turn_rate*diff, no clamp); added a per-enemy hit-set so the path can't loop back to a target it passed; added click-target convergence (path always passes through the click position, with a closest-approach post-process fallback). Then user said "revert to the simplest version again" — all of that came back out.
• Final homing state: the bare three-op algorithm (find nearest, clamped bend turn_rate*step_size, step). Left there per the user.

Beam persistent mode:

• Reference: v1's Beam ability. Held-while-channel. rebuild_path follows the caster; timer_every(tick_rate, ...) damage ticks with per-enemy cooldown; spring-scaled tip circle flashing white on tick; beam:release() ends it. O toggles instant↔persistent; mouse:3 down/up start/release.
• User then wanted each tick's line to fully disappear and reappear (not one persistent scrolling line). Reworked: the persistent beam holds a list of flashes — each tick spawns a fresh flash (own timer + clumps + retract), so consecutive ticks hand off. rebuild_path moved into apply_tick (recompute on tick boundaries, not per-frame). release() lets in-flight flashes finish their fade then kills the entity.

Flicker carrier (flicker.lua new):

• User: port the Flicker Strike visuals only — the line that follows the caster + per-enemy hit effects, no player movement.
• First pass ported v1's dash_clone flicker mode: autonomous entity, bezier-hops between enemies, fading dashed trail (trail_update/trail_draw ported verbatim from v1 line 578), hit FX per enemy. hits opt — user: "no concept of charges, just a variable for the number of enemies hit." F key.

Flicker v1-exact juice port:

• User: port everything exactly including sounds. Identified the primary flicker_strike (v1 line 4450) has more juice than the dash_clone mode first ported.
• Added fx_effect primitive to fx.lua (general named-spritesheet animation, v1 line 10601) + zag/zag_dist to fx_particle (one-time angle kink, v1 line 10523).
• Ported fx_energy_122.png (7×96×96 spritesheet) and the slash sound stack (slash_hit, slash_final, sword_slash_1-4).
• Per-hit: fx_energy_122 burst, hit_circle, 4 zag particles, slash_hit + random sword_slash, shake, body flash + spring (v1 pulses the player; redirected onto the flicker entity since the player is uninvolved).
• Final burst: hit_stop 0.08, slash_final, AoE knockback (radius 48, push enemies), big FX.
• hit-stop system: attack-template had set_time_scale but no hit_stop. Added a hit_stop(duration) helper + unscaled-dt countdown in main.lua, and wired scaled dt (sdt = dt*time_scale) through camera_update + all 7 entity-update loops so a time_scale of 0 freezes the world.

Camera shake bug:

• User reported the flicker shake "waaaaay too strong." Root cause: used shake_trauma where v1's camera.shake:shake(amount, duration) is the random-displacement shake. shake_trauma's amount is a 0-1 trauma value squared and ×24 — passing 4/8 produced ~384/1536 px of shake on a 270px screen. Fix: shake_trauma → shake_shake (pixel-amplitude random shake, the correct equivalent). shake_push calls were already correct (both engines treat push amount as pixels).

fx_effect animation speed:

• User noticed the fx_effect animation ran slower than v1. Not a bug — same taste issue as session 2's hit_effect (v1's 0.06s/frame felt too slow in attack-template, was bumped to 0.04). Changed both flicker fx_effect speeds (0.06 per-hit, 0.08 final) to 0.04.

Flicker target selection fix:

• User asked if target selection matched the original. It didn't — flicker:new used the dash_clone's cone-based "closest enemy ahead within ±60°" logic instead of the primary flicker_strike's "closest enemy to the mouse cursor, no cone" (v1 line 4538). Fixed: added target_x/target_y to the carrier API, initial target = closest enemy to the click position within range, no cone. Subsequent find_next hops already matched v1.

Misc:

• Seekers reverted from the frozen tuning-line back to the normal 5-in-a-ring; L key spawns a pack of 5 near the wall.
• attack-template/.claude/CLAUDE.md updated: carriers (beam + flicker added), fx_effect, sound list, five-layer hierarchy, hit-stop section, full keybinding table, port order (projectile/area/beam/flicker ✅), file map.

Deferred to next session: the big-rock / polygonal carrier (big_rock_effect — parabolic-flight rock-throw that shatters into Box2D fragments), plus a generalizable "airborne" system for the parabola/arc-flight abstraction.

Let's continue with the attack system generalization. Read the summaries for the past logs and then the contents of attack-template. We just got done with instant areas, now we want to work on DoT areas.

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ls: cannot access 'E:/a327ex/Invoker/attack-template': No such file or directory

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Invoker\reference\SNKRX\devlog.md
Invoker\reference\SNKRX\README.md
Invoker\reference\001-No-title\detailed_todo_dont_use.md
Invoker\reference\001-No-title\todo.md
Invoker\reference\239A5-P60B91D\main.md
Invoker\reference\Rekoyam Tsohg\todo.md
Invoker\reference\SNKRX_visual_effects_catalog.md
Invoker\reference\snkrx_style_effects.md
Invoker\reference\archive\implementation_plan.md
Invoker\reference\archive\system_design.md
Invoker\reference\ability_reference.md
Invoker\reference\area_modifiers_analysis.md
Invoker\reference\ability_design_reference.md
Invoker\reference\ability_modifier_map.md
Invoker\reference\map_visual_system.md
Invoker\reference\ability_editions.md
Invoker\reference\balatro_shader_analysis.md
Invoker\reference\tags.md
Invoker\reference\interactions.md
Invoker\reference\ai_coding_paradigms.md
Invoker\reference\anchor_usage_analysis.md
Invoker\reference\reference_games_strategy.md
Invoker\reference\file_split_and_ownership.md
Invoker\reference\archive\lore.md
Invoker\reference\todo.md
Invoker\reference\poe_gem_mechanics.md
Invoker\reference\poe_skill_generator.md
Invoker\reference\poe_skill_examples.md
Invoker\reference\chatgpt_mockup_prompt.md
Invoker\reference\archive\three_phase_system.md
... [10 more lines]

a327ex-site\media\logs\2026-01-01-07-37\ANCHOR.md
a327ex-site\media\logs\2026-01-01-07-37\CLAUDE.md
a327ex-site\media\logs\2026-01-02-10-00\ANCHOR.md
a327ex-site\media\logs\2026-01-02-10-00\CLAUDE.md
a327ex-site\media\logs\2026-01-01-07-37\IMPLEMENTATION_PLAN.md
a327ex-site\media\logs\2026-01-02-10-00\IMPLEMENTATION_PLAN.md
anchor.blot.im\logs\2026-01-02_18-59.md
anchor.blot.im\logs\2026-01-03_12-30.md
anchor.blot.im\logs\2026-01-03_15-30.md
anchor.blot.im\logs\anchor-phase-1.md
anchor.blot.im\logs\anchor-phase-10-part-1.md
anchor.blot.im\logs\anchor-phase-10-part-10.md
anchor.blot.im\logs\anchor-phase-10-part-2.md
anchor.blot.im\logs\anchor-phase-10-part-3.md
anchor.blot.im\logs\anchor-phase-10-part-4.md
anchor.blot.im\logs\anchor-phase-10-part-5.md
anchor.blot.im\logs\anchor-phase-10-part-6.md
anchor.blot.im\logs\anchor-phase-10-part-7.md
anchor.blot.im\logs\anchor-phase-10-part-8.md
anchor.blot.im\logs\anchor-phase-10-part-9.md
anchor.blot.im\logs\anchor-phase-2.md
anchor.blot.im\logs\anchor-phase-3-part-1.md
anchor.blot.im\logs\anchor-phase-3-part-2.md
anchor.blot.im\logs\anchor-phase-3-part-3.md
anchor.blot.im\logs\anchor-phase-3-part-4.md
anchor.blot.im\logs\anchor-phase-4.md
anchor.blot.im\logs\anchor-phase-5.md
anchor.blot.im\logs\anchor-phase-6.md
anchor.blot.im\logs\anchor-phase-7.md
anchor.blot.im\logs\anchor-phase-8.md
... [71 more lines]

abilities/
abilities.lua
anchor/
anchor.exe*
archive/
area.lua
assets/
cast.lua
design.md
door.lua
fx.lua
info_text.lua
log.lua
main.lua
map.lua
map_generation.lua
maps/
orb.lua
plan.lua
plan.md
player.lua
primitives.lua
projectile.lua
reference/
run.bat
run.lua
seeker.lua
spells.lua
spells.md
stats.lua
... [10 more lines]

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E:/a327ex/anchor.blot.im/logs/emoji-aimer-1.md
E:/a327ex/anchor.blot.im/logs/anchor-app-phase-1-part-1.md
E:/a327ex/anchor.blot.im/logs/website-redesign.md
E:/a327ex/anchor.blot.im/logs/orblike-redesign.md
E:/a327ex/anchor.blot.im/logs/orblike-ui-2.md
E:/a327ex/anchor.blot.im/logs/orblike-ui-1.md
E:/a327ex/anchor.blot.im/logs/codex-tests.md
E:/a327ex/anchor.blot.im/logs/codex-setup.md
E:/a327ex/anchor.blot.im/logs/anchor-app-ui-discussion.md
E:/a327ex/anchor.blot.im/logs/orblike-tutorial-map-and-wall-layers.md
E:/a327ex/anchor.blot.im/logs/ebb-ball-bounce-mechanics.md
E:/a327ex/anchor.blot.im/logs/orblike-design-consolidation.md
E:/a327ex/anchor.blot.im/logs/emoji-ball-bounce-exploration.md
E:/a327ex/anchor.blot.im/logs/orblike-failed-beach-map-generation.md
E:/a327ex/anchor.blot.im/logs/2026-01-04_12-15.md
E:/a327ex/anchor.blot.im/logs/ricochet.md
E:/a327ex/anchor.blot.im/logs/thalien-lune-gameplay.md
E:/a327ex/anchor.blot.im/logs/thalien-lune-design-1.md
E:/a327ex/anchor.blot.im/logs/composer-2-setup.md
E:/a327ex/anchor.blot.im/logs/orblike-hideout-3.md

---

Found 9 files
Invoker\area.lua
Invoker\reference\archive\feature_by_feature_analysis.md
Invoker\reference\archive\three_phase_system.md
Invoker\v1\main.lua
Invoker\reference\ai_coding_paradigms.md
Invoker\reference\interactions.md
Invoker\reference\tags.md
Invoker\reference\ability_modifier_map.md
Invoker\reference\area_modifiers_analysis.md

Found 20 files
anchor.blot.im\logs\anchor-app-phase-1-part-1.md
anchor.blot.im\logs\orblike-redesign.md
anchor.blot.im\logs\orblike-tutorial-map-and-wall-layers.md
anchor.blot.im\logs\ebb-ball-bounce-mechanics.md
anchor.blot.im\logs\orblike-failed-beach-map-generation.md
anchor.blot.im\logs\orblike-poe-sap-based-analysis.md
anchor.blot.im\logs\orblike-orb-system-design.md
anchor.blot.im\logs\anchor-rewrite.md
anchor.blot.im\logs\orblike-assorted-improvements.md
anchor.blot.im\logs\orblike-6-abilities.md
anchor.blot.im\logs\orblike-3-melee-abilities.md
anchor.blot.im\logs\orblike-project-bootstrap.md
anchor.blot.im\logs\ebb-sword.md
anchor.blot.im\logs\ebb-sword-redo.md
anchor.blot.im\logs\ebb-combat-juice-part-3-gun.md
anchor.blot.im\logs\ebb-temporary-end-design.md
anchor.blot.im\logs\2026-01-02_10-00.md
anchor.blot.im\logs\anchor-phase-9.md
anchor.blot.im\logs\anchor-phase-10-part-4.md
anchor.blot.im\logs\2026-01-02_18-59.md

-rw-r--r-- 1 adn 197121 36276 May 15 23:20 E:/a327ex/Invoker/ui.lua
-rw-r--r-- 1 adn 197121  7949 May 15 23:20 E:/a327ex/Invoker/primitives.lua
-rw-r--r-- 1 adn 197121 26029 May 15 23:19 E:/a327ex/Invoker/main.lua
-rw-r--r-- 1 adn 197121 11777 May 15 22:42 E:/a327ex/Invoker/seeker.lua
-rw-r--r-- 1 adn 197121  5714 May 15 22:20 E:/a327ex/Invoker/player.lua
-rw-r--r-- 1 adn 197121  7876 May 15 21:35 E:/a327ex/Invoker/area.lua
-rw-r--r-- 1 adn 197121 13149 May 15 21:34 E:/a327ex/Invoker/projectile.lua
-rw-r--r-- 1 adn 197121  8952 May 15 21:33 E:/a327ex/Invoker/plan.lua
-rw-r--r-- 1 adn 197121  7309 May 15 18:51 E:/a327ex/Invoker/fx.lua
-rw-r--r-- 1 adn 197121  9246 May 15 18:47 E:/a327ex/Invoker/map.lua
-rw-r--r-- 1 adn 197121  5774 May 15 18:47 E:/a327ex/Invoker/run.lua
-rw-r--r-- 1 adn 197121 11551 May 14 22:12 E:/a327ex/Invoker/cast.lua
-rw-r--r-- 1 adn 197121  5934 May 14 22:12 E:/a327ex/Invoker/spells.lua
-rw-r--r-- 1 adn 197121  1256 May 14 22:12 E:/a327ex/Invoker/abilities.lua
-rw-r--r-- 1 adn 197121  2887 May 14 22:11 E:/a327ex/Invoker/tags.lua
---
ls: cannot access 'E:/a327ex/anchor.blot.im/logs/*invoker*': No such file or directory
-rw-r--r-- 1 adn 197121  915985 May  2 23:39 E:/a327ex/anchor.blot.im/logs/orblike-redesign.md
-rw-r--r-- 1 adn 197121  562509 May  1 04:00 E:/a327ex/anchor.blot.im/logs/orblike-ui-2.md
-rw-r--r-- 1 adn 197121 1519675 Apr 30 20:46 E:/a327ex/anchor.blot.im/logs/orblike-ui-1.md
-rw-r--r-- 1 adn 197121  170199 Apr 27 21:21 E:/a327ex/anchor.blot.im/logs/orblike-tutorial-map-and-wall-layers.md
-rw-r--r-- 1 adn 197121   60995 Apr 26 23:44 E:/a327ex/anchor.blot.im/logs/orblike-design-consolidation.md
-rw-r--r-- 1 adn 197121  182731 Apr 26 19:41 E:/a327ex/anchor.blot.im/logs/orblike-failed-beach-map-generation.md
-rw-r--r-- 1 adn 197121 2758477 Apr 25 20:32 E:/a327ex/anchor.blot.im/logs/orblike-hideout-3.md
-rw-r--r-- 1 adn 197121  234299 Apr 21 18:17 E:/a327ex/anchor.blot.im/logs/orblike-hideout-2.md
-rw-r--r-- 1 adn 197121  270714 Apr 21 01:18 E:/a327ex/anchor.blot.im/logs/orblike-hideout-1.md
-rw-r--r-- 1 adn 197121   90987 Apr 19 19:53 E:/a327ex/anchor.blot.im/logs/orblike-poe-sap-based-analysis.md
-rw-r--r-- 1 adn 197121  257352 Apr 19 13:54 E:/a327ex/anchor.blot.im/logs/orblike-orb-system-design.md
-rw-r--r-- 1 adn 197121  216298 Apr 19 13:52 E:/a327ex/anchor.blot.im/logs/orblike-board-ability-system.md
-rw-r--r-- 1 adn 197121  104582 Apr 17 13:28 E:/a327ex/anchor.blot.im/logs/orblike-design-plan.md
... [6 more lines]

1    # Invoker — Plan
2   
3   Implementation roadmap for the new direction (chord-cast spells + Minesweeper meta-dungeon). Pair with `design.md` for what we're building and `spells.md` for spell-system mechanics.
4   
5   ---
6   
7   ## Strategy
8   
9   **Tutorial-first.** Build the spell-cast tutorial and the dungeon-meta tutorial before any other content. The tutorial is the smallest complete game — if we can't teach it cleanly, the design has problems and we discard early rather than after building the rest. Once both tutorials work end-to-end, all the core systems exist; everything after is content expansion + lifecycle + polish.
10  
11  **Validate twice.** Two hard validation gates:
12  1. After Phase 1: does chord-casting feel satisfying? If no → pivot the casting design.
13  2. After Phase 2: does the Minesweeper meta feel engaging? If no → pivot the meta design.
14  
15  Either pivot is far cheaper at the gate than after building enemies, leagues, save systems, and content for the (now wrong) design.
16  
17  **Pacing.** Incremental. One sub-deliverable at a time. User tests between deliverables. No chaining without check-ins.
18  
19  ---
20  
21  ## Current state
22  
23  **Shipped (still relevant after the unwind):**
24  - v2 starter on Anchor 2 (`main.lua`, `anchor/` framework copy)
25  - Player movement (WASD)
26  - Wall pipeline + palette/edition cycling system
27  - Hideout + tutorial corridor map shapes (geometry only — entity content is from the old orbs design and will be replaced)
28  - UI primitive substrate (`ui.lua`): `ui_panel`, `ui_text`, `ui_slot`, `ui_item_icon`, drag-drop framework
29  - Cast HUD substrate (cast slots + primitive HUD + Q/E/R/T keycaps + Space repeat button)
30  - Spell catalog + canonical-chord lookup (`spells.lua`) for the Fire-section vocabulary
... [204 more lines]

total 46152
-rw-r--r-- 1 adn 197121 1901251 May  7 10:23 emoji-aimer-1.md
-rw-r--r-- 1 adn 197121  233990 May  4 00:25 anchor-app-phase-1-part-1.md
-rw-r--r-- 1 adn 197121  424336 May  3 16:39 website-redesign.md
-rw-r--r-- 1 adn 197121  915985 May  2 23:39 orblike-redesign.md
-rw-r--r-- 1 adn 197121  562509 May  1 04:00 orblike-ui-2.md
-rw-r--r-- 1 adn 197121 1519675 Apr 30 20:46 orblike-ui-1.md
-rw-r--r-- 1 adn 197121  151044 Apr 30 00:53 codex-tests.md
-rw-r--r-- 1 adn 197121  179073 Apr 29 22:47 codex-setup.md
-rw-r--r-- 1 adn 197121  152405 Apr 28 12:59 anchor-app-ui-discussion.md
-rw-r--r-- 1 adn 197121  170199 Apr 27 21:21 orblike-tutorial-map-and-wall-layers.md
-rw-r--r-- 1 adn 197121  194368 Apr 27 21:08 ebb-ball-bounce-mechanics.md
-rw-r--r-- 1 adn 197121   60995 Apr 26 23:44 orblike-design-consolidation.md
-rw-r--r-- 1 adn 197121  241450 Apr 26 21:42 emoji-ball-bounce-exploration.md
-rw-r--r-- 1 adn 197121  182731 Apr 26 19:41 orblike-failed-beach-map-generation.md

E:/a327ex/a327ex-site/logs/attack-system-generalization-1.md
E:/a327ex/a327ex-site/logs/attack-system-generalization-2.md
E:/a327ex/a327ex-site/server/templates.lua
E:/a327ex/attack-template
E:/a327ex/BYTEPATH/objects/Attack.lua
E:/a327ex/BYTEPATH/objects/effects/AttackEffect.lua
E:/a327ex/BYTEPATH/objects/effects/PreAttackEffect.lua
E:/a327ex/BYTEPATH/objects/effects/WaverPreAttackEffect.lua
E:/a327ex/BYTEPATH/tutorial/answers/07 - Player Stats and Attacks Answers.html
E:/a327ex/BYTEPATH/tutorial/tutorial-code/07 - Player Stats and Attacks
E:/a327ex/edition-template
E:/a327ex/emoji-ball-battles/docs/ATTACK_REFERENCE.md
E:/a327ex/emoji-ball-battles/reference/attack-design-space.md
E:/a327ex/emoji-ball-battles/reference/super-emoji-box/attacks.lua
E:/a327ex/emoji-ball-bounce/reference/super-emoji-box/attacks.lua
E:/a327ex/Invoker/assets/Cute_Attack_1.ogg
E:/a327ex/Invoker/assets/Cute_Attack_1.wav
E:/a327ex/Invoker/assets/Cute_Attack_1_lightmed.ogg
E:/a327ex/Invoker/assets/Cute_Attack_2.ogg
E:/a327ex/Invoker/assets/Cute_Attack_2.wav
E:/a327ex/Invoker/assets/Cute_Attack_2_lightmed.ogg
E:/a327ex/Invoker/assets/Cute_Attack_3.ogg
E:/a327ex/Invoker/assets/Cute_Attack_3.wav
E:/a327ex/Invoker/assets/Cute_Attack_3_lightmed.ogg
E:/a327ex/Invoker/v1/assets/Cute_Attack_1.ogg
E:/a327ex/Invoker/v1/assets/Cute_Attack_1.wav
E:/a327ex/Invoker/v1/assets/Cute_Attack_1_lightmed.ogg
E:/a327ex/Invoker/v1/assets/Cute_Attack_2.ogg
E:/a327ex/Invoker/v1/assets/Cute_Attack_2.wav
E:/a327ex/Invoker/v1/assets/Cute_Attack_2_lightmed.ogg

total 4366
drwxr-xr-x 1 adn 197121       0 May 17 22:42 ./
drwxr-xr-x 1 adn 197121       0 May 17 07:23 ../
drwxr-xr-x 1 adn 197121       0 May 17 22:45 .claude/
drwxr-xr-x 1 adn 197121       0 May 17 22:53 .git/
drwxr-xr-x 1 adn 197121       0 May 17 22:24 anchor/
-rwxr-xr-x 1 adn 197121 4185088 May 17 22:07 anchor.exe*
-rw-r--r-- 1 adn 197121   14424 May 17 22:42 area.lua
drwxr-xr-x 1 adn 197121       0 May 17 20:26 assets/
-rw-r--r-- 1 adn 197121   20164 May 17 07:34 edition.lua
-rw-r--r-- 1 adn 197121   43373 May 17 13:57 findings.md
-rw-r--r-- 1 adn 197121    7155 May 17 19:02 fx.lua
-rw-r--r-- 1 adn 197121   19233 May 17 07:34 geometry.lua
-rw-r--r-- 1 adn 197121   30812 May 17 07:34 gradient.lua
-rw-r--r-- 1 adn 197121   18158 May 17 22:38 main.lua
-rw-r--r-- 1 adn 197121   11602 May 17 07:34 palette.lua
-rw-r--r-- 1 adn 197121    7824 May 17 12:46 player.lua
-rw-r--r-- 1 adn 197121   10661 May 17 20:26 projectile.lua
-rw-r--r-- 1 adn 197121     206 May 17 07:36 run.bat
-rw-r--r-- 1 adn 197121   15203 May 17 13:47 seeker.lua
-rw-r--r-- 1 adn 197121    5576 May 17 20:41 sound_tuner.lua
-rw-r--r-- 1 adn 197121     618 May 17 20:51 sound_tuning.lua
-rw-r--r-- 1 adn 197121   12728 May 17 08:06 stats.lua
-rw-r--r-- 1 adn 197121   14481 May 17 07:34 symbols.lua
-rw-r--r-- 1 adn 197121    3649 May 17 08:27 wall.lua
---
  5473 E:/a327ex/a327ex-site/logs/attack-system-generalization-1.md
  7863 E:/a327ex/a327ex-site/logs/attack-system-generalization-2.md
 13336 total

1    Title: Attack System Generalization 1
2   Date: 2026-05-17 13:59:02
3   
4   # Attack System Generalization 1
5   
6   ## Summary
7   
8   Started the second template-project in the series after `edition-template/`: a self-contained `E:/a327ex/attack-template/` scaffold that will eventually ship every attack carrier from Orblike v1 (projectile, area, beam, polygonal, movement, etc.) as a focused reusable visual-only module. Spent this session on the inventory, the baseline scene (player + seeker + wall + edition shimmer + sounds + debug overlay + streak-based wall response), and the documentation hand-off so the next instance can pick up cleanly.
9   
10  **Inventory pass (findings.md):**
11  - Read through `Invoker/v1/main.lua` (13,268 lines) end to end, cataloguing every carrier, effect primitive, modifier, and sound into `E:/a327ex/attack-template/findings.md` (~580 lines, 13 sections). Carrier taxonomy enumerates 13 distinct carriers with line refs into v1: projectile, self_area, aimed_area, melee, chain, beam, cyclone, toggle_area, big_rock, construct, asal, dash_strike, flicker, railgun, psylance, random.
12  - Full ability roster (28 abilities from v1's `abilities = {}` table at lines 704-1084) split into projectiles / areas / channeled / strikes / polygonal, each with element, visual, fire sound, hit sound, special-behavior notes.
13  - Deep-dive sections on projectile (movement modes incl. straight / homing / linear-return / arc-return; max-range; wall raycast; per-ability `on_hit` branches; visual variants incl. default rect, ball-lightning circle, wind_slash orbiting blades, arc crescent SDF), area (6 shapes: circle / rect / jagged_rect / cone / jagged_circle / polygon; instant + persistent modes; cascade; hostile-area variant), beam (path-walker, dashed leading-edge flash, tip circle, tick damage, drone-pitch-scaled-by-tick-rate), polygonal `big_rock_effect` (parabolic flight + jagged-rock shatter into Box2D rock_fragment pieces), movement (`dash_clone` shared by dash_strike / asal / flicker), and effect primitive library (18 named classes incl. hit_circle, hit_particle, hit_effect, fx_effect, lightning_line, beam_particle, slightly_jagged_line, railgun_flash, psylance_effect, big_rock_effect, rock_fragment, rock_debris, dash_clone, rotating_turret, explosive_fuse, trail system, shockwave).
14  - Modifier vocabulary section enumerated ~30 names (quantitative tiers `+/++/+++/-/--/---`, damage `pierce`/`chain`/`infinite_chain`, multi-shot `nova`/`spread`/`back`/`sides`/`parallel`, homing/return, area-specific, cascade/echo/copy, knockback, null_conversion, melee_splash, multistrike, etc.).
15  - Sound bank section mapped v1's ~190 ogg/wav assets per element (fire / earth / wind / ice / lightning / force / null / physical / melee / general) with file names.
16  - Concluded with a scope recommendation (which carriers to ship vs leave, what to consolidate, what stays gameplay-side) and 7 open questions for the user.
17  
18  **User decisions on scope:**
19  - Visual generalization only, NO modifier system — `mods` table / `pierce+1` / `homing` knobs are gameplay-side, not template-side.
20  - Light logic generalization IS OK — each carrier ships its movement / tick / hitbox boilerplate as overridable class fields.
21  - Sounds added per-carrier as we port (don't ship the full 30 MB bank).
22  - Cast log infrastructure NOT ported (gameplay debug, not visual).
23  - Element variants are sound + minor visual tweaks layered last on each carrier.
24  
25  **Bootstrapping the project (attack-template):**
26  - Created `E:/a327ex/attack-template/` directory.
27  - Copied edition-template's framework + Lua modules + draw shader: `anchor/`, `anchor.exe`, `assets/draw_shader.frag`, `edition.lua`, `palette.lua`, `gradient.lua`, `geometry.lua`, `symbols.lua`. Wrote a `run.bat` that calls `./anchor.exe attack-template`.
28  - Wrote initial `main.lua` smoke test: single rounded-rect player at center with a random `edition` from `edition_cycle` printed on boot.
29  - Added `0` / `F1` keys to cycle the player's edition forward/backward, matching the edition-template convention.
30  
... [30 more lines]

1    Title: Attack System Generalization 2
2   Date: 2026-05-17 22:46:41
3   
4   # Attack System Generalization 2
5   
6   ## Summary
7   
8   Second session of the `attack-template` build. Picked up from the session-1 scaffold (player + seekers + walls + edition shimmer) and shipped two carriers (projectile, area), a full engine-level runtime DSP system with a live tuning UI, an engine fix for mouse-button ordering, and the asset workflow pivot away from pre-baked `_lightmed` sound variants. By session end, attack-template demos: left-click fires a straight-line projectile with full caster juice + standard arrow fire sounds; right-click fires an area whose shape (circle/rect/polygon) × jagged × corner_brackets combo cycles live via T/G/B; F3 enters a per-sound bitcrush + SR-reduction tuning overlay that saves to `sound_tuning.lua` and auto-applies on next load.
9   
10  **Projectile carrier (`projectile.lua` — new):**
11  - Scoped via AskUserQuestion: minimal straight-line, generic `spawn_projectile(caster, opts)` API (not position-based), left-click fires one, skip sounds for first pass.
12  - Class with sensor box collider, gravity scale 0, fixed_rotation true, velocity set on spawn from `speed*(cos r, sin r)`. Spawn juice = `spring_pull('main', 0.5)` + 0.2s white flash.
13  - Per-frame: timer + spring update, collider sync, max-range expiry (`distance_traveled` accumulator), wall raycast forward (`max(speed*dt*2, 4)` look-ahead) against `{'wall'}` tag.
14  - Caller API ended up as `spawn_projectile(caster, opts)` where caster supplies x/y/edition/spring/timer/flashing. Spawn helper handles aim_r derivation from `main_camera.mouse`, 8-unit spawn offset (matches v1 hardcoded value despite user guessing "half player width" — verified v1 line 1994 uses flat +8 from a 10×10 player), and the full firing juice package: `shake_push` in aim direction, `spring_pull(caster.spring, 'shoot', 0.25)`, 0.15s caster flash via `'shoot_flash'` timer (distinct from `'hit_flash'`), white muzzle hit_circle + 2 cone particles at the spawn point.
15  - `fire_sounds = {{sound, vol}, ...}` opt added on user request — defaults to silent, list played simultaneously at fire-time.
16  
17  **Projectile debug cycle — three bugs found and fixed:**
18  - **`:die()` was setting `self._dying = true` BEFORE calling `entity_kill(self)`.** The framework's `default_kill` checks `_dying` and bails if true, so the projectile FX spawned but the entity never got queued for destruction — projectile flew forever. Fix: remove the manual flag set; the framework sets it via entity_kill. Guard stays for double-FX prevention. This single fix cured "doesn't die on max range / wall / enemy" simultaneously.
19  - **`physics_enable_collision('projectile','enemy')` did nothing for sensor events.** The engine has two separate masks (`collision_mask` vs `sensor_mask`) at `anchor.c:5864`. Sensor fixtures need `physics_enable_sensor`, not the collision enable. Switched the main.lua line and sensor_entities_begin began firing.
20  - **Hit effect spritesheet not loaded** — `'hit1'` was never registered. Ported `Invoker/assets/hit1.png` (572-byte 5×96×48 white burst) and added `spritesheet_register('hit1', 'assets/hit1.png', 96, 48)` after the sound loads.
21  
22  **Projectile FX correctness pass against v1 source:**
23  - Wall hit_circle should stay white (no `:change_color`) per v1 line 8056. Removed the change_color from `hit_wall`.
24  - Enemy hit was missing the 1-2 forward particles. v1's piercing_arrow / arrow_barrage / rotating_turret / tornado_shot branches (lines 8331-8338) all spawn `random_int(1, 2)` `hit_particle(hx, hy, {velocity=float(50,150)}):change_color(0.5, pc)` alongside the hit_effect. Added.
25  - Hit effect timing was 0.06s/frame matching v1 exactly. User felt it too slow → bumped to 0.04 (matches the early Invoker/reference/004 value, 0.2s total).
26  - **Camera shake bug**: `shake_push` was being called and the shake spring WAS updating, but `draw()` never called `camera_attach(main_camera, layer)`. The camera offsets — including shake — get pushed onto the layer matrix stack inside camera_attach. Without it, all the shake math was computed and discarded. Fixed by wrapping each layer's world content in `camera_attach`/`camera_detach`, setting `main_camera.x = width/2; main_camera.y = height/2` at init so world coords still map 1:1 to screen, and keeping the bg rect outside the attach so it doesn't shake along with entities.
27  
28  **Enemy juice masking discussion (Invoker design parity, no code change):**
29  - User reported enemy didn't appear to flash/spring on projectile hit. Investigation: `seeker:hit` IS being called (same code path as the H debug key, which proves it works). The 96×48 opaque white hit_effect sprite simply covers the 14×6 seeker for 0.3s, masking both the 0.15s flash and the spring scale pulse. Same problem exists in v1 — v1's effects layer also draws on top of enemies (line 7222 vs 7225). User accepted v1 behavior. Documented options if ever desired: shrink sprite to s=0.5, lengthen seeker flash to 0.4s, or both.
30  
... [30 more lines]

60   
61  **Typed-text queue drain fix:**
62  - User reported `Warning: typed-text queue full (32). Dropping: w` printing every frame. Root cause: engine permanently has `SDL_StartTextInput()` on (anchor.c:9107) and the typed-text queue only drains when Lua calls `engine_get_typed_text()`. No project in attack-template uses text input → queue fills up after ~32 keypresses → warns per-press forever.
63  - One-line fix added to main.lua's `update(dt)`: `engine_get_typed_text()` at the top. Flagged as a future engine wart worth fixing (auto-drain when nobody's consuming, or FIFO-drop silently).
64  
65  **Mouse button 2/3 swap (engine boundary):**
66  - User reported `mouse:2` binding to right-click did nothing. Memory note had captured: SDL ordering is `1=L, 2=M, 3=R` (LÖVE2D ordering is `1=L, 2=R, 3=M`). User said to fix at engine level so projects can just write `mouse:2` for RMB intuitively.
67  - Added `sdl_to_anchor_mouse_button(sdl_btn)` helper in anchor.c that swaps 2↔3 (4+ pass through). Applied at the SDL ingestion point (MOUSEBUTTONDOWN/UP handlers ~line 10379) — all downstream code (input bindings, `mouse_is_down/pressed`, capture mode) sees Anchor convention. Also updated capture's snprintf to use the swapped index.
68  - Rebuilt engine, copied to attack-template.
69  - Updated memory note (`reference_anchor2_mouse_buttons.md`) to capture the new LÖVE2D convention and the swap-at-boundary implementation. Updated MEMORY.md index entry.
70  
71  **Area carrier (`area.lua` — new, two iterations):**
72  - First iteration scoped via AskUserQuestion: circle + rect shapes, instant mode only, right-click at cursor trigger, skip sounds. `spawn_area(x, y, opts)` API (position-based, optional `caster` for edition tinting). Lifecycle: tween radius 0→target over 0.05s → spring pull + flash + damage pass → 0.2s hold → blink (every 0.05s × 7 ticks) → kill. Visual: filled circle/rect with alpha-20 color + orbiting arc segments (decaying sigmoid spin to settle ~0.25s) for circle, bracket corners for rect.
73  - Damage: `query_entities_circle` / `query_entities_box` based on shape. Per-enemy `e:hit(damage)` + `spawn_hit_effect` + 2-3 colored particles.
74  - Wired into main.lua: `bind('fire_area', 'mouse:2')`, areas update loop after projectiles, draw between projectiles and fxs (so fxs sit on top of area silhouettes).
75  
76  **Area extensions (caster juice + polygon shape + flags):**
77  - User asked to verify v1 had caster-side juice on area cast. Confirmed at v1 lines 1492-1508 (self_area) and 1563-1577 (aimed_area): camera shake (omnidirectional trauma for self, directional push for aimed), `p1.spring:pull('shoot', 0.25)`, 0.15s flash, hit_circle at caster position (stays white), 4 cast particles (omnidirectional for self, ±π/4 cone for aimed).
78  - Added caster juice to `spawn_area` (auto-detects self vs aimed by `caster→area` distance > 4 px threshold; below threshold = self-cast pattern, above = aimed pattern with directional shake + cone particles).
79  - User then asked for a "general polygon" shape plus jagged variants of all three (circle/rect/polygon). Designed: `shape ∈ {'circle','rect','polygon'}` × `jagged = true/false` as orthogonal flag. Hit query matches base shape (circle→circle query, rect→box query, polygon→polygon query). For circle and rect, jagged is visual-only (jittered perimeter polygon outline + filled disc/triangle-fan). For polygon, jagged actually mutates the verts → hit area changes.
80  - Engine wrapper added: `query_entities_polygon(x, y, verts_flat, tags)` in `anchor/physics.lua` (engine already had `physics_query_polygon` at anchor.c:7611 — verts are LOCAL space, engine offsets by x/y, capped at 8 verts per Box2D `B2_MAX_POLYGON_VERTICES`).
81  - Vert-generation helpers: `build_jagged_circle_verts` (8-12 verts, ±0.15 rad angle jitter, 0.85-1.1 radius jitter — v1 jagged_circle pattern); `build_jagged_rect_verts` (5-7 verts approximating rect bounds with `hw*|cos a| + hh*|sin a|` distance computation + 0.75-1.1 jitter — v1 jagged_rect pattern); `build_polygon_verts` (auto-generates 6-vert hexagon if no input; folds polygon_r into each angle; applies jitter if jagged).
82  - Draw branches: smooth circle = filled disc + orbiting arcs (original); smooth rect = filled rect + bracket corners (original); vert-driven (jagged circle/rect, polygon smooth/jagged) = `r*0.85` filled circle fallback (rect uses triangle fan since non-square) + polygon outline edges.
83  - **Aim-aligned rotation**: when caster provided and `caster→area` distance > 4, derive `aim_r = atan(dy, dx)` and default `opts.r` / `opts.polygon_r` to it. Caller can override by setting explicitly. Circle is rotation-invariant so unused. Polygon hexagon visibly rotates to align one vertex with the aim direction; rect stays visually identical until non-square `rect_h` set.
84  - **Cast FX 8-unit offset**: matched projectile pattern. Cast hit_circle and 4 particles spawn at `caster.{x,y} + 8*(cos cast_dir, sin cast_dir)` so they sit in front of the player instead of on top of the body. Self-casts (no cast_dir) spawn on the caster body since there's no "forward".
85  - **`corner_brackets` flag** (third orthogonal flag, user-requested): replaces the full polygon outline with per-vertex bracket marks (10% of each adjacent edge length, like the rect bracket style applied to N-gons). Works on any vert-driven shape (jagged_circle, jagged_rect, polygon smooth/jagged).
86  - Demo cycle keys: T cycles shape (circle→rect→polygon), G toggles jagged, B toggles corner_brackets. State printed on each change. 6+ combinations testable from a single demo session (12 with brackets toggle).
87  
88  **Global CLAUDE.md rule changes:**
89  - Added a hard rule at the top of `E:/a327ex/.claude/CLAUDE.md` "Code Changes" subsection: **always show code before writing it** — full code or exact diff in chat, ask "does this look right?", wait for go-ahead. Applies to every file operation including one-liners. Narrow exceptions for typo fixes user explicitly asks for inline and CLAUDE.md/plan.md/design.md docs when change is already specified in prose.
... [170 more lines]

Now I have the summaries. Let me read the contents of attack-template — the orientation doc, current area.lua, main.lua, and findings.md sections relevant to areas/DoT.

1    # attack-template — orientation for new instances
2   
3   ## ⛔ HARD RULE — ALWAYS SHOW CODE BEFORE WRITING IT ⛔
4   
5   **This rule has no exceptions and is valid for every single edit, every
6   session, every file in this project.**
7   
8   Before calling `Write` or `Edit` on ANY file in `attack-template/`,
9   post the full code (or the exact diff for `Edit`) in a normal chat
10  message and explicitly ask "does this look right?" / "should I commit
11  this?" / equivalent. Wait for the user's go-ahead. Then write.
12  
13  This applies to:
14  - New files (show the entire file contents).
15  - Edits to existing files (show old → new with enough context to read).
16  - Even one-line edits. Even "obvious" fixes. Even when the user has
17    already approved the broader design — each individual file
18    operation is its own checkpoint.
19  
20  Tiny exceptions, narrowly scoped:
21  - Pure typo / docstring fixes the user explicitly asks you to make
22    inline.
23  - Edits to this CLAUDE.md or `findings.md` (docs about the project,
24    not project code) when the user has already specified the change in
25    prose.
26  
27  If you are unsure whether something counts, treat it as "show first,
28  then write."
29  
30  Why this rule exists: the user wants to review every code change
... [464 more lines]

1    --[[
2     area.lua — area-of-effect attack carrier.
3   
4     Three base shapes with an orthogonal `jagged` flag:
5       'circle'  + jagged=false:  filled disc + orbiting arc segments
6       'circle'  + jagged=true:   filled disc + jittered perimeter polygon outline
7       'rect'    + jagged=false:  filled rect + bracket corners
8       'rect'    + jagged=true:   filled triangle fan + jittered perimeter polygon outline
9       'polygon' + jagged=false:  filled disc + clean polygon outline
10      'polygon' + jagged=true:   filled disc + jittered polygon outline (jitter mutates hit area)
11  
12    Damage queries match base shape (not jagged):
13      circle  → query_entities_circle   (jagged is visual-only)
14      rect    → query_entities_box      (jagged is visual-only)
15      polygon → query_entities_polygon  (jagged actually changes hit area, since verts are the shape)
16  
17    Instant mode only — no persistent/DoT, no follow/moving/homing,
18    no hostile, no cascade/echo, no magnetic pull. Lifecycle: tween radius
19    0 → target over 0.05s → damage pass + spring pop + 0.15s flash → 0.2s
20    hold → blink (every 0.05s × 7 ticks) → kill.
21  
22    Caller API:
23      spawn_area(x, y, {
24        shape,           -- 'circle' (default) | 'rect' | 'polygon'
25        jagged,          -- bool, default false
26        radius,          -- default 24 (matches v1 fireball area_radius=25)
27        rect_h,          -- rect only; default = radius (square)
28        r,               -- rect rotation; default 0
29        polygon_verts,   -- polygon only; list of {a, d} (angle in rad, distance as
30                         -- fraction of radius). Auto-generates 6 evenly-spaced
... [358 more lines]

1    --[[
2     attack-template/main.lua
3   
4     Smoke test for the attack-template scaffold. Drops a player (WASD-driven,
5     ported from Invoker/player.lua) in the middle of a small arena with a
6     static interior wall (Invoker/v1/main.lua wall_object) and 5 seekers
7     (Invoker/seeker.lua) chasing the player. Edition shimmer on every entity
8     via the same draw shader the edition-template uses.
9   
10    KEY BINDINGS
11      W A S D / arrows   move player
12      0  / F1            cycle player edition forward / backward
13                         — prints the new mode's name to console
14  ]]
15  
16  require('anchor')({
17    width  = 480,
18    height = 270,
19    title  = 'attack-template — smoke test',
20    scale  = 3,
21    filter = 'rough',
22  })
23  
24  require('palette')
25  require('edition')
26  
27  edition_setup({ draw_shader = 'assets/draw_shader.frag' })
28  
29  require('geometry')
30  require('stats')
... [425 more lines]

Let me check findings.md for the persistent/DoT area section so I know what v1 actually shipped.

31:| `projectile` (implicit default) | `orb:activate` else-branch at 4456ish; class at 7671 | `projectile` entity with collider, optional homing/chain/pierce/return | `fireball`, `null_arrow`, `piercing_arrow`, `arrow_barrage`, `tornado_shot`, `wind_slash`, `explosive_arrow`, `ball_lightning` |
32:| `self_area` | 1433 | `area` following the player (or static), instant or persistent | `frost_nova`, `earthquake` |
37:| `cyclone` | 4052 | persistent `area` following the player with orbiting particles | `cyclone` |
38:| `toggle_area` | 4164 | persistent `area` following player, toggled on/off | `righteous_fire` |
65:| `null_arrow` | null | rect, purple | `caustic_arrow_fire` | `fireball_hit` | hit spawns DoT `area` (33 r, 4 s, 0.5 tick) |
72:| `ball_lightning` | lightning | small circle (r=3) | `arc_cast` | (tick-cast chains arc) | spawns following `area` zone + casts `arc` on tick |
82:| `righteous_fire` | fire | persistent circle r=64 following player | `rf_start` | `rf_loop` (loop) / `rf_hit_3` (tick) | toggle_area; uses `def.steady_rotation` (no spike-pop on hit) |
89:| `cyclone` | wind | persistent `area` (circle) following player with orbit-arcs | `hurricane_start` | `hurricane_loop` + periodic `wind_proj_*` whooshes | hold carrier; speed_mult=0.5, trigger_rate=2 |
162:- `null_arrow`: damage + spawn DoT `null_arrow` `area` at projectile position.
256:**Persistent** (`def.area_duration` set):
265:- Cyclone is the most complex: `is_cyclone` flag makes arc_speed much faster (3.75π baseline), area_tick_rate=0.12, `steady_rotation` skips spike-pop on hits, plays `cyclone_particle` orbiting arcs.
275:- `def.hit_sounds = {...}` plays a random member on every tick that connects (used by `righteous_fire`).
276:- For non-cyclone, non-steady areas, ticks pull the arc speed up by 1.25π (visual spike on hit).
277:- Default tick sound is `dot_tick` if no `hit_sound`/`hit_sounds` defined.
440:| `cyclone_particle` | 10712 | cyclone | Arc segment orbiting a `follow` center. Shrinks to 0 length over duration. |
518:| general | `shockwave` (`RPG3_FireMagic_CuteBomb`), `dot_tick`, `charging_loop`, `construct_cast` | | | |
558:   - `area.lua` — area class with all 6 shapes, instant + persistent modes. Strip per-ability branching.
619:A few abilities (wind_slash, ball_lightning) imply visual differences
632:3. **Element / shape separation.** Should `wind_slash` and `ball_lightning` be element flavors of `projectile`, or fully separate carriers? In v1 they're both projectiles with custom `projectile_shape` flags. Probably keep that — shape is an axis orthogonal to element.

240  3. **Jagged rect** (line 9028): 5-7 vertex jagged polygon (generated once at spawn), filled triangles + 2px outline. Used by `fissure`.
241 4. **Cone** (line 9063): 8-segment fan from origin out to radius with bracket corners at the tip + 2 outer edge points.
242 5. **Jagged circle** (line 9115): 8-12 vertices around the perimeter with ±0.15 rad angle jitter and 0.85-1.1 radius jitter. Circle fill at `r*0.85` + 2px polygon outline. Used by `earthquake`.
243 6. **Polygon** (line 9102): pre-generated `polygon_verts` (a/d pairs). Filled with `circle(r*0.85)` as approximation + 2px polygon outline. Used by big_rock landing zone.
244 
245 ### Lifecycle modes
246 
247 **Instant** (when `def.area_duration` is nil):
248 
249 - Optional `pull_delay = 0.15s` for `magnetic_area` (pulls enemies inward first).
250 - 0.05s tween in (`cubic_in_out`) to full `visual_radius`.
251 - Single damage pass — query enemies by shape (`query_box`/`query_circle`/`query_polygon`/cone-filter).
252 - 0.2s hold → blink (every 0.05s for 7 ticks) → kill.
253 - Shake, hit_effect on every hit, knockback, slow application, optional `def.hit_sound`.
254 - `area_echo` mod: repeat the whole area at `echo_delay` (def.echo_delay or 0.55s) after a perpendicular offset.
255 
256 **Persistent** (`def.area_duration` set):
257 
258 - 0.25s tween up to radius (or instant if duration >= 9999, which is "permanent").
259 - `timer:every(tick_rate, 'tick', ...)`: query enemies by shape, damage each (with `damaged_by_area` cooldown so the same area doesn't double-tick the same enemy).
260 - Optional moving (`moving_zone`): random ±45° drift at random 15-35 speed.
261 - Optional homing (`homing_zone`): steers toward closest enemy at `homing_steer_rate=3` (modifier-adjustable).
262 - Optional growing (`growing_zone`)/shrinking (`shrinking_zone`): linear radius rate over duration.
263 - After duration, blink + kill.
264 - Hostile areas (`hostile = true`) damage the player every tick instead of enemies. Used for `pack_explode_on_death` and `slow_aura` enemy modifiers.
265 - Cyclone is the most complex: `is_cyclone` flag makes arc_speed much faster (3.75π baseline), area_tick_rate=0.12, `steady_rotation` skips spike-pop on hits, plays `cyclone_particle` orbiting arcs.
266 
267 ### Cascade (multi-copy along direction)
268 
269 In `area:new` (line 8412), if `mods.cascade >= 2` and `cascade_r` is set, the area spawns `(n-1)` extra copies along `cascade_r` direction with `spacing = radius*2*def.cascade_spacing` and slight angle jitter. For cone shape, cascade widens the angle instead.
... [60 more lines]

200  ```
201 
202 The `projectile_*`/`area_*`-prefixed variants of these (`projectile_nova`,
203 `area_spread`, etc.) restrict the multiplier to one carrier subtype on
204 multi-carrier abilities. Helpers `build_formation_angles(r, mods)` (line
205 2136) and `build_area_angles(r, mods)` (line 2166) consolidate the logic.
206 
207 ---
208 
209 ## 4. Area system (deep dive)
210 
211 **Class location:** `area` lines 8395–9170.
212 
213 ### Args
214 
215 ```lua
216 area(x, y, {
217   ability = 'fireball',
218   color = blue,
219   mods = {area = N, duration = N, tick_speed = N, magnetic_area = bool, moving_zone = bool, ...},
220   edition = N,                 -- for shader
221   radius = ...,                -- defaults from def.area_radius
222   shape = 'circle'/'rect'/'jagged_rect'/'cone'/'jagged_circle'/'polygon',
223   rect_h = ...,                -- for rect/jagged_rect
224   cone_angle = ...,            -- for cone
225   outer_radius = ...,          -- for polygon (falloff ring)
226   polygon_verts = {...},       -- {a = angle, d = distance} pairs
227   polygon_r = rotation,
228   follow = entity, follow_ox/follow_oy = offset,  -- moves with target
229   cascade_r = ...,             -- direction along which cascade copies are spawned
... [15 more lines]

Oriented. Here's where we are and what DoT areas adds.

State

attack-template/area.lua ships only instant mode: tween radius 0→target (0.05s, cubic_in_out) → single apply_damage pass + spring pull + 0.15s flash → 0.2s hold → blink×7 → kill. Three base shapes (circle/rect/polygon) × jagged × corner_brackets, aim-aligned rotation from caster. Damage queries match base shape; for polygon, jagged actually mutates hit area.

The CLAUDE.md explicitly lists persistent-mode DoT as the next deferred extension of area.lua.

What v1 actually shipped for DoT (findings.md §4 "Persistent")

• def.area_duration set → persistent path
• 0.25s tween-up to radius (instant if duration ≥ 9999)
• timer_every(tick_rate, 'tick', …): query shape, damage each enemy
• Per-enemy damaged_by_area cooldown (so a 2 Hz area doesn't double-tick the same enemy)
• After duration, blink + kill (same blink as instant)
• Tick visual: non-cyclone, non-steady areas pull arc speed up by 1.25π on tick (a brief spike of the orbiting arcs)
• Default tick sound dot_tick (general bank); def.hit_sounds = {…} for random-per-tick (righteous_fire); def.hit_sound for once-on-first-hit
• Deferred variants (called out in CLAUDE.md "Future extensions"): moving_zone, homing_zone, growing/shrinking_zone, hostile, cyclone (special), cascade, magnetic_area

Before I write anything, a few scoping decisions:

User has answered your questions: "How wide should the first DoT-area pass be?"="Minimal core only (Recommended)", "Where does the persistent code live?"="Extend area.lua (Recommended)", "How should the demo trigger DoT vs instant?"="New key toggles persistence (Recommended)", "Do we port the tick sound now?"="Port dot_tick now (Recommended)". You can now continue with the user's answers in mind.

Locked. Let me look at v1's persistent path and find the dot_tick asset, then draft the diff before writing.

14:  dot_tick = 0.49,
115:--   dot_tick (Click sound 37 + Body Fall 18): -20.3 dB -> 0.33
145:an:sound('dot_tick', 'assets/Click sound 37 + Body Fall 18.ogg')
506:  {'dot_tick', 'assets/Click sound 37 + Body Fall 18'},
728:    area_duration = 4,
729:    area_tick_rate = 0.5,
816:    area_tick_rate = 0.5,
817:    area_duration = 999,
885:    area_duration = 9999,
886:    area_tick_rate = 0.12,
1030:    area_tick_rate = 0.15,
1031:    area_duration = 999,
1076:    area_duration = 9999,
1077:    area_tick_rate = 0.15,
4097:          local whoosh_rate = def.area_tick_rate*2.2
8502:  self.duration = args.duration or (def and def.area_duration)
8517:    self.tick_rate = args.tick_rate or (def and def.area_tick_rate) or 0.5
8667:            if not e.damaged_by_area[self.id] then
8669:              for _, v in pairs(e.damaged_by_area) do
8673:                e.damaged_by_area[self.id] = {self.tick_rate, self.ability}
8678:            if not e.damaged_by_area[self.ability] then
8679:              e.damaged_by_area[self.ability] = self.tick_rate
8713:            sfx('dot_tick', volumes.dot_tick)
9223:  self.damaged_by_area = {}
9464:  for k, v in pairs(self.damaged_by_area) do
9467:      if v[1] <= 0 then self.damaged_by_area[k] = nil end
9469:      self.damaged_by_area[k] = v - dt
9470:      if self.damaged_by_area[k] <= 0 then self.damaged_by_area[k] = nil end

---

8490   self.hostile = args.hostile or false
8491    
8492      -- Hostile slow amount: if set, this (duration) area applies a player speed
8493      -- multiplier of (1 - slow_amount) while the player is inside its shape.
8494      -- Tracked via a unique speed_buffs key so overlapping areas don't clobber
8495      -- each other's entries.
8496      self.slow_amount = args.slow_amount
8497      if self.slow_amount then
8498        self.slow_key = 'aura_slow_' .. tostring(self)
8499      end
8500    
8501      -- Duration (persistent area with DoT)
8502      self.duration = args.duration or (def and def.area_duration)
8503      self.growth_duration = args.growth_duration
8504    
8505      self:add(timer())
8506      self:add(spring())
8507      self.spring:add('main', 1)
8508    
8509      if self.duration then
8510        -- Duration modifiers
8511        if self.mods['duration+'] then self.duration = self.duration*1.5 end
8512        if self.mods['duration++'] then self.duration = self.duration*2.0 end
8513        if self.mods['duration+++'] then self.duration = self.duration*3.0 end
8514        if self.mods['duration-'] then self.duration = self.duration*0.75 end
8515        if self.mods['duration--'] then self.duration = self.duration*0.5 end
8516        if self.mods['duration---'] then self.duration = self.duration*0.25 end
8517        self.tick_rate = args.tick_rate or (def and def.area_tick_rate) or 0.5
8518        if self.mods['tick_speed+'] then self.tick_rate = self.tick_rate*0.85 end
8519        if self.mods['tick_speed++'] then self.tick_rate = self.tick_rate*0.7 end
... [210 more lines]

-rw-r--r-- 1 adn 197121 28921 Apr 15 21:47 E:/a327ex/Invoker/v1/assets/Click sound 37 + Body Fall 18.ogg
-rw-r--r-- 1 adn 197121 97708 Apr 15 21:47 E:/a327ex/Invoker/v1/assets/Click sound 37 + Body Fall 18.wav
-rw-r--r-- 1 adn 197121 31595 Apr 15 21:47 E:/a327ex/Invoker/v1/assets/Click sound 37 + Body Fall 18_lightmed.ogg

8750     self.arc_base_speed = an.random:choice({-1, 1})*an.random:float(3, 5)*math.pi
8751        self.elapsed = 0
8752    
8753        local pull_delay = 0
8754        if self.mods.magnetic_area then
8755          pull_delay = 0.15
8756          local pull_radius = self.radius*2
8757          local mag_scale = self.radius/25
8758          local pull_mult = (def and def.magnetic_pull_mult) or 1
8759          add_shockwave(x, y, false, mag_scale)
8760          for _, e in ipairs(cached_enemies) do
8761            if not e.dead then
8762              local d = math.distance(x, y, e.x, e.y)
8763              if d < pull_radius and d > 1 then
8764                local strength = 4*pull_mult*(1 - d/pull_radius)
8765                local r = math.angle_to_point(e.x, e.y, x, y)
8766                e:push(r, strength)
8767              end
8768            end
8769          end
8770        end
8771    
8772        self.timer:after(pull_delay, function()
8773          if def and def.area_sound then
8774            sfx(def.area_sound, volumes[def.area_sound])
8775          end
8776    
8777          self.timer:tween(0.05, self, {visual_radius = self.radius}, math.cubic_in_out, function()
8778            self.spring:pull('main', 0.25)
8779            self.flashing = true
... [60 more lines]

8503:  self.growth_duration = args.growth_duration
8509:  if self.duration then
8511:    if self.mods['duration+'] then self.duration = self.duration*1.5 end
8512:    if self.mods['duration++'] then self.duration = self.duration*2.0 end
8513:    if self.mods['duration+++'] then self.duration = self.duration*3.0 end
8514:    if self.mods['duration-'] then self.duration = self.duration*0.75 end
8515:    if self.mods['duration--'] then self.duration = self.duration*0.5 end
8516:    if self.mods['duration---'] then self.duration = self.duration*0.25 end
8581:    local growth_duration = self.growth_duration or self.duration
8583:      if growth_duration >= 9999 then
8587:        self.radius_rate = (self.radius*2 - self.radius)/growth_duration
8590:      if growth_duration >= 9999 then
8594:        self.radius_rate = (self.radius*0.5 - self.radius)/growth_duration
8603:    if self.duration < 9999 then
8611:      -- Hostile duration area: slow / damage the player while they're inside
8694:                duration = an.random:float(0.1, 0.3),
8728:    if self.mods.area_echo and self.mods.area_echo >= 2 and self.duration < 9999 then
8742:    -- After duration, blink out and die
8743:    self.timer:after(self.duration, function()
8745:      self.timer:every(0.05, 'blink', function() self.hidden = not self.hidden end, 7, function() self:kill() end)
8746:      self.timer:trigger('blink')
8795:            self.timer:every(0.05, 'blink', function() self.hidden = not self.hidden end, 7, function() self:kill() end)
8796:            self.timer:trigger('blink')
8876:                e:apply_slow(def.slow_amount, def.slow_duration or 2)
8881:              e:push(push_r, def.knockback_force, def.knockback_duration or 0.4)
8885:              e:push(pull_r, def.pull_force, def.pull_duration or 0.4)
8933:        self.timer:every(0.05, 'blink', function() self.hidden = not self.hidden end, 7, function() self:kill() end)
8934:        self.timer:trigger('blink')
8962:  if self.duration then
9181:  self.duration = 0.8
... [12 more lines]

186-
187---[[
188:  seeker:hit(damage, hit_vol)
189-
190:  Damage application. Drops HP, plays enemy_hit (scaled by hit_vol
191-  if passed), stamps last_damage_time so the HP bar shows, pulls
192-  the spring + flashes, kills on hp<=0. v1 lines 9410-9439. The
193:  hit_vol mult lets callers silence the per-enemy sound when the
194-  carrier already plays its own bigger sound — duration zones in
195-  v1 pass 0 here so the zone's tick doesn't stack a "headshot"
--
197-  area) doesn't pass it → full volume.
198-]]
199:function seeker:hit(damage, hit_vol)
200-  if self._dead or self._dying then return end
201-  self.hp = self.hp - (damage or 0)
202-  self.last_damage_time = time
203:  sfx(sounds and sounds.enemy_hit, (hit_vol or 1)*(volumes and volumes.enemy_hit or 1))
204-  spring_pull(self.spring, 'main', 0.5, 5, 0.5)
205-  self.flashing = true

Let me verify the entity id field name and the timer_every signature so the draft uses real API.

E:\a327ex\attack-template\anchor\camera.lua:184:    target = entities[c.follow_target_id]
E:\a327ex\attack-template\anchor\collider.lua:30:  queries can resolve bodies back to entities via entities[user_data].
E:\a327ex\attack-template\anchor\collider.lua:42:  -- Set user_data to the owner's ID so physics queries resolve via entities[id]
E:\a327ex\attack-template\anchor\object.lua:25:    local t = entities[self.target_id]
E:\a327ex\attack-template\anchor\object.lua:74:function make_entity(e)
E:\a327ex\attack-template\anchor\object.lua:77:  entities[e.id] = e
E:\a327ex\attack-template\anchor\object.lua:104:      if e.id then entities[e.id] = nil end
E:\a327ex\attack-template\anchor\physics.lua:32:  return entities[id]

95:function timer_every(t, delay, name_or_callback, callback_or_times, times_or_after, after_function)
96-  local name, callback, times, after
97-  if type(name_or_callback) == 'string' then
98-    name, callback, times, after = name_or_callback, callback_or_times, times_or_after, after_function
99-  else
100-    name, callback, times, after = uid(t), name_or_callback, callback_or_times, times_or_after
101-  end
102-  insert_entry(t, {name = name, mode = 'every', time = 0, delay = delay, callback = callback, times = times, after = after, count = 0})
103-end
104-
105---[[
106-  timer_during(t, duration, [name,] callback, [after])
107-  Fires callback(dt, progress) every frame for duration seconds.
--
191:function timer_every_step(t, start_delay, end_delay, times, name_or_callback, callback_or_step, step_or_after, after_function)
192-  local name, callback, step_method, after
193-  if type(name_or_callback) == 'string' then
194-    name, callback, step_method, after = name_or_callback, callback_or_step, step_or_after, after_function
195-  else
196-    name, callback, step_method, after = uid(t), name_or_callback, callback_or_step, step_or_after
197-  end
198-  step_method = step_method or math.linear
199-  local delays = {}
200-  for i = 1, times do
201-    local tt = (i - 1)/(times - 1)
202-    tt = step_method(tt)
203-    delays[i] = math.lerp(tt, start_delay, end_delay)

Good — e.id is real and timer_every matches the existing blink usage. Here's the proposed change set. I'll show diffs for area.lua and main.lua, plus the new sound asset to copy. No file writes yet — review and tell me if this looks right.

1. Sound asset

Copy Invoker/v1/assets/Click sound 37 + Body Fall 18.ogg → attack-template/assets/Click sound 37 + Body Fall 18.ogg (28 KB, kept original filename — matches the session-2 convention for the arrow stack and headshot).

2. main.lua diffs

a. Add volume + sound load (after the arrow stack lines, ~line 88–101):

volumes = {
  player_hit      = 0.39,
  enemy_hit       = 0.85,
  enemy_die       = 0.80,
  arrow_hit_wood  = 0.73,  -- v1 line 64
  arrow_shoot     = 0.46,  -- v1 line 65
  dot_tick        = 0.49,  -- v1 line 14   ← NEW
}
...
sounds.arrow_shoot = sound_load('assets/RPG3_GenericArrow_Shoot01.ogg')
sounds.dot_tick    = sound_load('assets/Click sound 37 + Body Fall 18.ogg')   -- ← NEW

b. Add toggle binding (with the other area cycle binds, ~line 163–166):

bind('cycle_area_shape',     'key:t')
bind('toggle_area_jagged',   'key:g')
bind('toggle_area_brackets', 'key:b')
bind('toggle_area_persistent', 'key:n')   -- ← NEW

c. Add toggle state (with the other current_area_* vars, ~line 184–187):

current_area_shape      = 'circle'
current_area_jagged     = false
current_area_brackets   = false
current_area_persistent = false           -- ← NEW
area_shape_cycle        = {'circle', 'rect', 'polygon'}

d. Add toggle handler (next to the other toggles, after toggle_area_brackets block ~line 251–256):

if is_pressed('toggle_area_persistent') then
  current_area_persistent = not current_area_persistent
  print('area_persistent: ' .. (current_area_persistent and 'on (3s / 0.5s tick)' or 'off (instant)'))
end

e. Update fire_area call (~line 304–313):

if is_pressed('fire_area') and not p._dead then
  spawn_area(main_camera.mouse.x, main_camera.mouse.y, {
    radius = 30,
    damage = 2,
    caster = p,
    shape  = current_area_shape,
    jagged = current_area_jagged,
    corner_brackets = current_area_brackets,
    duration  = current_area_persistent and 3   or nil,   -- ← NEW
    tick_rate = current_area_persistent and 0.5 or nil,   -- ← NEW
  })
end

3. area.lua diffs

a. Header docstring — replace the "Instant mode only" paragraph with persistent-aware wording:

  Two lifecycle modes selected by `duration`:

    Instant (default, duration = nil): tween radius 0 → target over 0.05s
      → single damage pass + spring pop + 0.15s flash → 0.2s hold → blink × 7 → kill.

    Persistent (duration set): tween radius 0 → target over 0.25s. Damage
      ticks every `tick_rate` seconds (default 0.5s); each tick that lands
      on anyone plays `dot_tick`, pulls the spring 0.1, flashes 0.1s, and
      spikes the arc speed by 1.25π (capped at 3π). After `duration`
      seconds, blink × 7 → kill. Per-enemy cooldown prevents the same
      enemy from being hit more than once per tick_rate window.

Plus add to the caller-API block:

      duration,        -- nil = instant area (default).
                       -- set = persistent DoT area; lifetime in seconds.
      tick_rate,       -- persistent only; seconds between damage ticks
                       -- (default 0.5).

b. Constructor fields — add after self.r = args.r or 0 (~line 137):

  self.duration  = args.duration               -- nil → instant; set → persistent
  self.tick_rate = args.tick_rate or 0.5
  self.hit_cooldowns = {}                       -- entity_id → cooldown expire time

c. Arc-speed init — replace the single self.arc_base_speed = … line (current line 144) with branched init:

  if self.duration then
    -- Persistent: slow constant base, bumped by tick spikes (v1 line 8530).
    self.arc_sign  = random_choice({-1, 1})
    self.arc_speed = self.arc_sign*random_float(0.5, 1)*math.pi
  else
    -- Instant: fast initial spin that decays via the sigmoid in :update.
    self.arc_base_speed = random_choice({-1, 1})*random_float(3, 5)*math.pi
  end

d. Lifecycle block — replace the single timer_tween(self.timer, 0.05, …) block (current lines 208–220) with branched lifecycle:

  if self.duration then
    -- Persistent: longer tween-up (0.25s), no immediate damage pass,
    -- start the tick loop, schedule blink+kill at end of duration. The
    -- tick loop is NOT cancelled when blink starts — damage continues
    -- through the fade-out (matches v1 line 8742-8747).
    timer_tween(self.timer, 0.25, self, {visual_radius = self.radius}, math.cubic_in_out)
    timer_every(self.timer, self.tick_rate, 'tick', function() self:apply_tick() end)
    timer_after(self.timer, self.duration, function()
      timer_every(self.timer, 0.05, 'blink', function() self.hidden = not self.hidden end, 7, function()
        entity_kill(self)
      end)
    end)
  else
    -- Instant: tween in → single damage pass + spring pop + flash → hold → blink → kill.
    timer_tween(self.timer, 0.05, self, {visual_radius = self.radius}, math.cubic_in_out, function()
      spring_pull(self.spring, 'main', 0.25)
      self.flashing = true
      timer_after(self.timer, 0.15, 'flash', function() self.flashing = false end)

      self:apply_damage()

      timer_after(self.timer, 0.2, function()
        timer_every(self.timer, 0.05, 'blink', function() self.hidden = not self.hidden end, 7, function()
          entity_kill(self)
        end)
      end)
    end)
  end

e. Extract query_enemies helper + add apply_tick — replace the existing apply_damage (lines 224–247) with:

function area:query_enemies()
  if self.shape == 'rect' then
    local box_h = self.rect_h and self.rect_h*2 or self.radius*2
    return query_entities_box(self.x, self.y, self.radius*2, box_h, self.r, {'enemy'})
  elseif self.shape == 'polygon' then
    return query_entities_polygon(self.x, self.y, verts_to_flat(self.verts), {'enemy'})
  else  -- 'circle' (smooth or jagged)
    return query_entities_circle(self.x, self.y, self.radius, {'enemy'})
  end
end


function area:apply_damage()
  local enemies = self:query_enemies()
  local pc = edition_base_color(self.edition) or self.color
  for _, e in ipairs(enemies or {}) do
    if e.hit and not e._dead then
      e:hit(self.damage)
      spawn_hit_effect(e.x, e.y)
      for i = 1, random_int(2, 3) do
        spawn_particle(e.x, e.y, {
          velocity = random_float(50, 150),
        }):change_color(0.5, pc)
      end
    end
  end
end


-- Persistent tick. Per-enemy cooldown (`hit_cooldowns[id] = time + tick_rate`)
-- prevents the same enemy from being double-tapped if multiple ticks land in
-- one frame somehow. Per-enemy hit sound is silenced (hit_vol=0) so the
-- single `dot_tick` plays once for the whole tick — matches v1 line 8685
-- where non-cyclone non-hit_sounds DoT areas pass hit_vol=0 to take_damage.
-- Lighter particles (1-2, lower velocity, narrower, shorter) keep DoT ticks
-- from feeling as heavy as instant hits — v1 line 8691-8698.
function area:apply_tick()
  local enemies = self:query_enemies()
  local pc = edition_base_color(self.edition) or self.color
  local hit_any = false
  for _, e in ipairs(enemies or {}) do
    if e.hit and not e._dead then
      local cd = self.hit_cooldowns[e.id]
      if not cd or time >= cd then
        self.hit_cooldowns[e.id] = time + self.tick_rate
        e:hit(self.damage, 0)
        hit_any = true
        for i = 1, random_int(1, 2) do
          spawn_particle(e.x, e.y, {
            velocity = random_float(30, 80),
            duration = random_float(0.1, 0.3),
            w        = 4,
          }):change_color(0.5, pc)
        end
      end
    end
  end
  if hit_any then
    sfx(sounds.dot_tick, volumes.dot_tick)
    spring_pull(self.spring, 'main', 0.1)
    self.flashing = true
    timer_after(self.timer, 0.1, 'tick_flash', function() self.flashing = false end)
    -- Arc speed spike: bump up by 1.25π, capped at 3π (v1 line 8722).
    self.arc_speed = self.arc_sign*math.min(math.abs(self.arc_speed) + 1.25*math.pi, 3*math.pi)
  end
end

f. area:update — branch arc spin (current lines 250–259):

function area:update(dt)
  timer_update(self.timer, dt)
  spring_update(self.spring, dt)
  self.elapsed = self.elapsed + dt
  if self.duration then
    -- Constant arc spin with tick-spike bumps applied directly to arc_speed.
    self.arc_r = self.arc_r + self.arc_speed*dt
  else
    -- Sigmoid decay: fast initial spin freezes by ~0.25s (instant-area pattern).
    local mult = 1/(1 + math.exp(20*(self.elapsed - 0.25)))
    self.arc_r = self.arc_r + self.arc_base_speed*mult*dt
  end
end

Notes / sanity checks

• Cooldown gate: time is the global synced by sync_engine_globals() each frame. timer_every fires once per tick at precise multiples of tick_rate, so the cooldown is technically redundant for a single area at steady tick — but I kept it to match v1's structural pattern (matters if a future variant fires off-cadence damage).
• hit_vol=0 for tick damage: silences per-enemy enemy_hit so the single dot_tick is the only sound per tick. Without this a 5-enemy area at 0.5s tick over 3s = 30 layered headshot samples. v1 does the same (line 8685).
• Lighter tick particles: 1–2 per enemy (vs 2–3), velocity 30–80 (vs 50–150), width 4, duration 0.1–0.3. Matches v1.
• No spawn_hit_effect: persistent ticks skip the 96×48 white burst sprite — only the seeker's own internal flash/spring + the light particles. Matches v1 (only hit_particle, no hit_effect in the persistent tick block).
• Blink during tick: v1 doesn't cancel the tick every when blink starts, so ticks keep firing during the 0.35s blink phase. I'm matching that — the enemy can still take a final tick or two while the area visually fades.
• Smooth-circle arc spike: only smooth 'circle' shape uses the arc rendering. For other shapes the arc_speed mutation is harmless dead state. (Future: could gate on shape, but it's literally one assignment per tick.)
• CLAUDE.md / findings.md updates: I'll do those in a separate pass after you've tested the code, per usual workflow.

Test plan

1. ./run.bat
2. Press N — console should print area_persistent: on (3s / 0.5s tick).
3. Right-click in a cluster of seekers. Expect:
   • Slower (0.25s) grow-in than instant
   • Area persists for 3 seconds
   • Every 0.5s, enemies inside take damage, particles fly, dot_tick plays, area body briefly flashes white + spring-pops, arc segments spin up momentarily
   • After 3s, blink-out (7 ticks × 0.05s) and disappear
4. Compare to instant (press N again, right-click): tween should be much faster (0.05s), single damage pop, then hold + blink.
5. Cycle through shapes with T while persistent is on — circle, rect, polygon all behave the same lifecycle. Polygon-jagged should hit only the verts-defined area.
6. Stand still on top of a seeker and toggle on; right-click on yourself; verify self-cast variant still fires omnidirectional cast FX (and persistent ticks still resolve).
7. F2 to confirm no collider is drawn for areas (they're query-only).
8. F3 to tune dot_tick (Up/Down to navigate, [/] for bits, S to save).

Does this look right to commit?

Yes.

Copying the sound asset first, then editing both files.

-rw-r--r-- 1 adn 197121 28921 May 18 08:04 E:/a327ex/attack-template/assets/Click sound 37 + Body Fall 18.ogg

The file E:\a327ex\attack-template\area.lua has been updated successfully. (file state is current in your context — no need to Read it back)

The file E:\a327ex\attack-template\area.lua has been updated successfully. (file state is current in your context — no need to Read it back)

The file E:\a327ex\attack-template\area.lua has been updated successfully. (file state is current in your context — no need to Read it back)

Now main.lua — four small edits.

The file E:\a327ex\attack-template\main.lua has been updated successfully. (file state is current in your context — no need to Read it back)

The file E:\a327ex\attack-template\main.lua has been updated successfully. (file state is current in your context — no need to Read it back)

The file E:\a327ex\attack-template\main.lua has been updated successfully. (file state is current in your context — no need to Read it back)

The file E:\a327ex\attack-template\main.lua has been updated successfully. (file state is current in your context — no need to Read it back)

The file E:\a327ex\attack-template\main.lua has been updated successfully. (file state is current in your context — no need to Read it back)

The file E:\a327ex\attack-template\main.lua has been updated successfully. (file state is current in your context — no need to Read it back)

Syntax-checking both files.

area.lua: ok
main.lua: ok

Both files parse clean. Summary of what landed:

attack-template/assets/Click sound 37 + Body Fall 18.ogg — copied from Invoker/v1/assets/.

attack-template/area.lua — persistent-mode branch added:

• New args duration and tick_rate; self.hit_cooldowns table for per-enemy gating
• Arc-speed init branches: instant keeps the fast decaying arc_base_speed; persistent gets a slow constant arc_speed (±[0.5,1]π) plus an arc_sign
• Lifecycle branches: persistent does 0.25s tween + timer_every(tick_rate, …) damage loop + timer_after(duration, blink+kill); instant unchanged
• New area:query_enemies helper shared by apply_damage and the new apply_tick
• apply_tick does cooldown-gated damage with hit_vol=0, plays single dot_tick, spring 0.1 + flash 0.1s + arc-speed spike (+1.25π, cap 3π) when any enemy was hit; lighter particles (1–2, vel 30–80, w=4)
• area:update arc spin branches: constant for persistent, sigmoid decay for instant

attack-template/main.lua — dot_tick sound + volume entry, N bind for toggle_area_persistent, current_area_persistent state, toggle handler, duration/tick_rate passed into spawn_area when toggle is on.

Test plan

1. ./run.bat
2. Press N — console: area_persistent: on (3s / 0.5s tick). Press again to toggle off (instant).
3. With persistent on, right-click into a seeker cluster. Expect:
   • Slower 0.25s grow-in
   • Area persists ~3s
   • Every 0.5s: enemies inside take damage, light particles, single dot_tick plays, area body briefly flashes white + spring-pops, arc segments visibly spin up
   • Then blink-out (~0.35s) and disappear
4. Compare to instant (toggle off, right-click): faster grow-in, single damage pop, hold, blink.
5. Cycle T/G/B while persistent is on — circle/rect/polygon all use the same lifecycle; jagged polygon should tick only the actual verts-defined area.
6. Self-cast (right-click on the player) should still trigger omnidirectional cast FX and tick correctly.
7. F3 to tune dot_tick (Up/Down to navigate the sound list, [/] for bits, S to save).

Ready for you to run. CLAUDE.md + findings.md updates will land after you've verified the feel.

The spin velocity for the circle area should decay over time if a hit hasn't happened recently. For the non-circular persistent areas, let's have it breathing a little instead of completely static, maybe some pulsing or spring pull. I'd rather a breathing-like effect rather than spring pull, actually, so it's scale goes up and down slowly in a breathing-like pattern. Try your best and we'll iterate over it.

Good iteration. Plan:

Smooth-circle arc decay. Store the baseline arc speed at construction. Each frame, exponentially lerp arc_speed back toward baseline (rate k=3, ~95% decay over 1s). Tick spikes still push it to 3π; without further hits it settles back to the slow random baseline (±[0.5,1]π) over ~1.5s. So you get visible rhythm: spike → settle → spike → settle.

Non-smooth breathing. Add a breathing_phase advanced at π rad/s (0.5 Hz, one inhale-exhale every 2s) and breathing = 1 + 0.05*sin(phase) (±5% scale amplitude). Random start phase so multiple areas don't pulse in lockstep. Applied as a multiplier on the spring scale s at draw time — only for persistent areas that aren't the smooth circle (the smooth circle gets its life from the spinning arcs).

Shape gate: smooth circle (shape=='circle' and not jagged) → arc decay, no breathing. Everything else (jagged circle, rect, jagged rect, polygon, jagged polygon) → breathing.

Diffs to area.lua

a. Constructor — persistent arc init (store baseline + add breathing fields):

  if self.duration then
    -- Persistent: slow constant base, bumped by tick spikes (v1 line 8530).
    -- We add an exponential decay back toward this baseline in :update so
    -- the arc speed doesn't stay at peak forever after a few hits.
    self.arc_sign     = random_choice({-1, 1})
    self.arc_baseline = self.arc_sign*random_float(0.5, 1)*math.pi
    self.arc_speed    = self.arc_baseline
    -- Slow scale breathing for non-smooth-circle persistent shapes —
    -- the smooth circle reads its arc spin as life; everything else
    -- would sit completely static without this. Random start phase
    -- prevents multiple areas from pulsing in lockstep.
    self.breathing_phase = random_float(0, 2*math.pi)
    self.breathing       = 1
  else
    -- Instant: fast initial spin that decays via the sigmoid in :update.
    self.arc_base_speed = random_choice({-1, 1})*random_float(3, 5)*math.pi
  end

b. area:update — expand persistent branch with breathing + arc decay:

function area:update(dt)
  timer_update(self.timer, dt)
  spring_update(self.spring, dt)
  self.elapsed = self.elapsed + dt
  if self.duration then
    -- Breathing scale (5 % amplitude, ~0.5 Hz). Only visible on
    -- non-smooth-circle shapes — see :draw.
    self.breathing_phase = self.breathing_phase + dt*math.pi
    self.breathing = 1 + 0.05*math.sin(self.breathing_phase)
    -- Arc speed decays exponentially toward baseline. Tick spikes in
    -- apply_tick raise it; this drags it back down between ticks so the
    -- area doesn't sit pegged at max spin forever once enemies thin out.
    self.arc_speed = self.arc_baseline + (self.arc_speed - self.arc_baseline)*math.exp(-3*dt)
    self.arc_r = self.arc_r + self.arc_speed*dt
  else
    -- Sigmoid decay: fast initial spin freezes by ~0.25s (instant-area pattern).
    local mult = 1/(1 + math.exp(20*(self.elapsed - 0.25)))
    self.arc_r = self.arc_r + self.arc_base_speed*mult*dt
  end
end

c. area:draw — fold breathing into s (single line addition at the top of draw):

function area:draw(layer)
  if self.hidden then return end
  set_edition(layer, self.edition)

  local s = self.spring.main.x
  -- Persistent non-smooth-circle shapes breathe their scale gently. Smooth
  -- circle's life is the orbiting arcs, so it skips breathing.
  if self.duration and not (self.shape == 'circle' and not self.jagged) then
    s = s*self.breathing
  end
  local c = self.flashing and fg_color() or self.color()
  local r = self.visual_radius*s

Everything below that line stays as-is — r, s, scale = r/max(radius,1), smooth rect's h = (rect_h or visual_radius)*2*s all flow the breathing through automatically.

Decisions to flag

• Decay target. I'm decaying toward the random slow baseline (±[0.5,1]π), not to zero. So between ticks the area still spins slowly. Alternative is decay-to-zero (area visually stops between ticks). One-line change if you want zero instead.
• Decay rate k=3. Means ~95% decay in 1s, ~78% in 0.5s. With tick_rate=0.5s, the speed-just-before-next-tick equilibrium sits around 1.1π (vs 3π just after a tick). Visible breathing rhythm in the arcs.
• Breathing freq 0.5 Hz. One full inhale-exhale every 2s. Calm rhythm. ±5% amplitude → ±1.5 units at radius 30.
• Breathing applies to "circle + jagged" even though it's nominally a circle. Reading the draw code, jagged circles use the polygon outline path, not arcs — so they need breathing too. Otherwise they'd sit static.

Apply these?

Go ahead.

The file E:\a327ex\attack-template\area.lua has been updated successfully. (file state is current in your context — no need to Read it back)

The file E:\a327ex\attack-template\area.lua has been updated successfully. (file state is current in your context — no need to Read it back)

The file E:\a327ex\attack-template\area.lua has been updated successfully. (file state is current in your context — no need to Read it back)

area.lua: ok

Parses clean. Test plan:

1. ./run.bat, press N to enable persistent.
2. Smooth circle (default): right-click into seekers. Arcs should now spike up on each tick and visibly slow down between ticks. After enemies clear / wander out, the arcs should settle to the slow baseline spin within ~1–1.5s rather than staying pegged.
3. Jagged circle (G): right-click. Should now gently breathe in/out (one full cycle every ~2s, ±5% radius). No arcs.
4. Smooth rect (T): right-click. Width + height both breathe.
5. Polygon (T again, with/without G/B): all four polygon variants should breathe.
6. Instant mode (N off): unchanged from before — fast spin decay, no breathing.

Tunables if it feels off:

• Breathing freq: change dt*math.pi (currently 0.5 Hz)
• Breathing depth: change 0.05 in 1 + 0.05*sin(...)
• Arc decay rate: change math.exp(-3*dt) (k=3 → ~95% decay/sec; larger k = snappier settle)
• Decay target: change self.arc_baseline to 0 if you want full stop between ticks instead of slow baseline spin

Perfect, I think that's it for the persistent areas, unless there's something still missing.

Honest answer: nothing core is missing relative to the scope we agreed on. The deferred variants — moving_zone, homing_zone, growing/shrinking_zone, hostile, cyclone, cascade/echo, magnetic_area — are intentional cuts, not omissions. Each would be its own iteration if/when you want it.

Two loose ends worth naming:

1. Docs. attack-template/.claude/CLAUDE.md still describes the area carrier as instant-only, hasn't mentioned dot_tick sound, the N keybind, or the breathing/arc-decay behaviors. findings.md doesn't strictly need an update (it's an inventory of v1, not a status doc) but the CLAUDE.md "What's next — recommended port order" item 2 should be marked as covering persistent. I'd normally do this as the natural "wrap up the feature" pass before moving to the next carrier.

2. Minor things I noticed but didn't surface as bugs:

   • hit_cooldowns table grows with every new enemy that enters; no cleanup. Garbage collected when the area dies, so not a leak — just worth knowing if you ever set durations into the tens of seconds with high enemy churn.
   • If you ever set duration < tick_rate, blink starts before the first damage tick. Just a "don't do that" config, no real bug.
   • Persistent areas inherit the caster-side juice (shake / spring / flash / muzzle FX) from the existing area:new block unchanged. This is correct behavior but worth knowing — if you ever want persistent areas to feel "calmer" on cast than instant nukes, that's where you'd diverge.

If those don't bug you, I'd say persistent areas are done. Want me to do the docs pass, or move on to the next carrier (per CLAUDE.md's order: beam next, then dash, then polygonal big_rock)?

Let's do beams next. Like area, we want both instant and persistent ones. They have small differences in visual and behavior. I think the only instant line ability in Orblike v1 is Psylance, or Railgun, don't remember what it was called. And then there's the continuous Beam ability itself. Let's start with instant first.

Let me check findings.md for what v1 ships for instant lines (psylance/railgun) and the continuous beam, since the user wasn't sure which was which.

36:| `beam` | 3619 | per-frame dashed-line beam attached to player or orb, tick damage | `beam` |
44:| `railgun` | 2590 | charged straight line, instant damage along path | `railgun` |
45:| `psylance` | 4227 | two-phase force-line (gather enemies, then damage) | `psylance` |
88:| `beam` | force | dashed line with leading-edge white flash + tip circle + guide lines (when widened) | `beam_cast` | `beam_drone` (looped, pitched by tick_rate) | hold carrier; beam_length=150, beam_width=2, tick_rate=0.15 |
90:| `psylance` | force | two-phase line: pulls enemies in, then dashed-line damage | `formation_activate` (fire) | `beam_drone` x 0.8 vol (loop) | hold carrier; gather_duration=0.5, damage_delay=0.15 |
106:| `railgun` | (none) | bright dashed line shrinking to nothing; clumped segments retract toward center | `charging_loop` (loop) → `railgun_cast_1`+`railgun_cast_2` (release) | `railgun_hit_1..3` random | charge_duration=1.0, base_width=2; damage scales with charge (1x at 0, 2x at full) |
190:### Multi-shot helpers (used by `chain`, `construct`, `psylance`, `dash_strike`, etc.)
281:## 5. Beam system (deep dive)
283:**Activation:** lines 3619–4051 inside `orb:activate`. No standalone class — beams are stateful flags on the orb itself, drawn directly each frame.
289:- `beam_cast` sfx.
290:- After `activation_delay`, sets `beam_active = true`, starts `beam_drone` looped sfx.
295:`beam_current_length` lerps toward target every frame (lerp speed 0.99/0.08).
298:- Length: `beam_length+/++/+++/-/--/---` (1.25, 1.5, 2, 0.85, 0.7, 0.5 mult).
299:- Width: `beam_width+/++/+++` (additive +1, +2, +3) / `beam_width-/--` (-1, -2 min 1).
303:- Sweep: `beam_sweep` (auto-rotates aim_r at `beam_sweep_speed=1.5` rad/s).
305:- Parallel (`projectile_parallel` or `parallel`): N offset beams 10 units apart.
309:`build_homing_path` (line 10750) — shared with railgun preview, psylance, and beams:
314:- Lerps a stored display path toward ideal at `12*dt` (smoothing so the beam doesn't snap when target changes).
316:`draw_dashed_path` (line 10857) — walks the path drawing dashes (5 long, 6 gap, scrolling at 80*tick_speed_ratio units/s). Each dash is a `layer:line` + 2 cap circles. Color is white for the first `flash_dist = scroll_speed*tick_rate` of the beam (so a white "leading edge" sweeps along), then ability color for the rest.
320:Chain extension: at tip, if `chain` mod set, find enemies within `beam_width*3` and extend the path through them (up to `chain` count).
322:Guide lines (when widened): two parallel dashed lines at `±beam_width*1.5` from center, alpha 60.
324:### Beam tip
326:- Spring-scaled circle (`beam_width + 1.5`).
332:When `beam_tick_timer >= tick_rate`:
334:- AABB-cull enemies by beam path bounding box.
335:- For each beam path segment, project enemy onto segment, check perpendicular distance < `beam_width*3`.
337:- Increment `beam_expire_counter`; fire `cast_on_expire` secondaries every N ticks.
341:`beam_drone_handle` pitch = `def.tick_rate / current_tick_rate`. Faster tick → higher-pitched drone, slower → lower.
345:On release: stop drone, clear `speed_buffs.beam`, reset `beam_paths`, conclude cast_log.
385:- **Charge UI** (asal, railgun): ring of arc segments around source, growing as `charge_t` from 0 to 1. Converging hit_particles at `30-60` unit radius traveling inward. `charging_loop` sfx looped.
... [13 more lines]

Let me look at the v1 beam draw + damage logic and the railgun flash effect, so I have concrete code refs before scoping.

280  
281 ## 5. Beam system (deep dive)
282 
283 **Activation:** lines 3619–4051 inside `orb:activate`. No standalone class — beams are stateful flags on the orb itself, drawn directly each frame.
284 
285 ### Startup
286 
287 - `orb-to-player` `slightly_jagged_line` (anim 0.1-0.2s) — same activation visual as every hold ability.
288 - Player spring pulse + flash (0.1s).
289 - `beam_cast` sfx.
290 - After `activation_delay`, sets `beam_active = true`, starts `beam_drone` looped sfx.
291 - Applies `speed_mult` (0.4) to player + sets `turn_rate` (2 rad/s).
292 
293 ### Per-frame logic
294 
295 `beam_current_length` lerps toward target every frame (lerp speed 0.99/0.08).
296 
297 Modifiers:
298 - Length: `beam_length+/++/+++/-/--/---` (1.25, 1.5, 2, 0.85, 0.7, 0.5 mult).
299 - Width: `beam_width+/++/+++` (additive +1, +2, +3) / `beam_width-/--` (-1, -2 min 1).
300 - Tick rate: `tick_speed+/++/+++/-/--/---` (multiplicative on base 0.15s).
301 - Homing: `homing` (turn toward closest enemy each step, `homing_force--/-/+` change rate).
302 - Returning arc: bends in 1.5π around start point.
303 - Sweep: `beam_sweep` (auto-rotates aim_r at `beam_sweep_speed=1.5` rad/s).
304 - Formation angles (build_formation_angles): same nova/spread/back/sides vocabulary.
305 - Parallel (`projectile_parallel` or `parallel`): N offset beams 10 units apart.
306 
307 ### Drawing
308 
309 `build_homing_path` (line 10750) — shared with railgun preview, psylance, and beams:
... [60 more lines]

No matches found

[Showing results with pagination = offset: 25]

190:### Multi-shot helpers (used by `chain`, `construct`, `psylance`, `dash_strike`, etc.)
445:| `railgun_flash` | 11824 | railgun | Dashed line with clumped (2-4 segs each) bidirectional shrink. Each clump's `visible_start/visible_end` tween toward midpoint with staggered delays. Supports curved `path` (with cumulative distance lookup) or straight (`r + length`). |
446:| `psylance_effect` | 10936 | psylance | Two-phase: gather (pulls enemies onto line, draws two side-dashes fading from 255 to 40 alpha) → damage (extends line + dashed center stroke with side-shake). |

Let me look at v1's railgun activation + railgun_flash effect to confirm my interpretation before scoping.

2580         -- Ability copy: queue extra dashes after echo chain (one per other orb)
2581            if mods.ability_copy then
2582              self.dash_strike_copy_queue = {}
2583              for _, o in ipairs(orbs) do
2584                if o ~= self then
2585                  table.insert(self.dash_strike_copy_queue, o)
2586                end
2587              end
2588            end
2589          end
2590        elseif def and def.activation == 'manual' and def.carrier == 'railgun' then
2591          self.cooldown = math.max(self.cooldown - dt, 0)
2592          if orb_input_down(self.slot) and self.cooldown <= 0 then
2593            if not self.rg_charging then
2594              self.rg_charging = true
2595              self.rg_charge_time = 0
2596              self.rg_preview_path = nil
2597              p1.speed_buffs.railgun = 0.3
2598              self.rg_charge_handle = sfx_handle('charging_loop', volumes.charging_loop)
2599              sfx_set_looping(self.rg_charge_handle, true)
2600            end
2601            self.rg_charge_time = self.rg_charge_time + dt
2602            local charge_t = math.clamp(self.rg_charge_time/def.charge_duration, 0, 1)
2603            -- Null conversion check
2604            local rg_check_mods = p1:get_mods()
2605            for _, s in ipairs(self.slots) do
2606              if s.type == 'modifier' then rg_check_mods[s.name] = rg_check_mods[s.name] or s.value end
2607            end
2608            local rg_null = ability_has_tag(ability_name, 'null') or rg_check_mods.null_conversion
2609            local charge_src_x = rg_null and self.x or p1.x
... [70 more lines]

11820    end
11821   
11822   -- Effect: railgun_flash
11823   -- Bright line that appears at full width then shrinks to nothing.
11824   railgun_flash = object:extend()
11825   function railgun_flash:new(x, y, args)
11826     object.new(self)
11827     self.x, self.y = x, y
11828     self.r = args.r or 0
11829     self.length = args.length or 100
11830     self.path = args.path
11831     self.draw_color = args.color and args.color:clone() or fg_color:clone()
11832     self.duration = args.duration or 0.25
11833     self.edition = args.edition or 0
11834     self:add(timer())
11835     -- Generate dash segments along the beam
11836     local all_segs = {}
11837     local dash_len, gap_len = 5, 6
11838     local stride = dash_len + gap_len
11839     local d = 0
11840     while d < self.length do
11841       local seg_end = math.min(d + dash_len, self.length)
11842       if seg_end - d > 0.5 then
11843         table.insert(all_segs, {start_d = d, end_d = seg_end})
11844       end
11845       d = d + stride
11846     end
11847     -- Group consecutive segments into clumps of 2-4
11848     self.clumps = {}
11849     local i = 1
... [70 more lines]

Confirmed — railgun_flash (v1 line 11824) is the canonical "instant line attack" visual: dashed line appears at full length, then clumps of 2–4 dashes retract toward their midpoints with staggered delays over ~0.25s. Psylance is two-phase (gather → damage), which is more of a specific ability mechanic than a generic carrier visual.

Before drafting, four scoping decisions:

User has answered your questions: "Which v1 visual should the instant beam port?"="railgun_flash (Recommended)", "Charge phase?"="Skip (Recommended)", "How does the demo trigger instant beam?"="mouse:3 (middle) (Recommended)", "Port beam_cast sound now?"="Port beam_cast (Recommended)". You can now continue with the user's answers in mind.

22:  beam_cast = 0.42,
23:  beam_drone = 0.37,
153:an:sound('beam_cast', 'assets/RPG3_ElectricMagic_Cast02.ogg')
154:an:sound('beam_drone', 'assets/RPG3_PlasmaMagicEpic3_P5_BeamLayer_Loop.ogg')
515:  {'beam_cast', 'assets/RPG3_ElectricMagic_Cast02'},
516:  {'beam_drone', 'assets/RPG3_PlasmaMagicEpic3_P5_BeamLayer_Loop'},
3627:          self.beam_cast_log = damage_cast_log.new(ability_name, def.element)
3628:          self.beam_cast_log:add_pending()
3661:          sfx('beam_cast', volumes.beam_cast)
3665:            self.beam_drone_handle = sfx_handle('beam_drone', volumes.beam_drone)

[Showing results with pagination = limit: 10]

-rw-r--r-- 1 adn 197121   78764 Apr 15 21:47 PM_GENERIC_Slash03_P1_Cast.ogg
-rw-r--r-- 1 adn 197121  589360 Apr 15 21:47 PM_GENERIC_Slash03_P1_Cast.wav
-rw-r--r-- 1 adn 197121   93948 Apr 15 21:47 PM_GENERIC_Slash03_P1_Cast_lightmed.ogg
-rw-r--r-- 1 adn 197121   60295 Apr 15 21:47 RPG3_DarkMagic_Cast02v2.ogg
-rw-r--r-- 1 adn 197121  335410 Apr 15 21:47 RPG3_DarkMagic_Cast02v2.wav
-rw-r--r-- 1 adn 197121   63420 Apr 15 21:47 RPG3_DarkMagic_Cast02v2_lightmed.ogg
-rw-r--r-- 1 adn 197121   96841 Apr 15 21:47 RPG3_ElectricMagic_Cast02.ogg
-rw-r--r-- 1 adn 197121  484508 Apr 15 21:47 RPG3_ElectricMagic_Cast02.wav
-rw-r--r-- 1 adn 197121   96421 Apr 15 21:47 RPG3_ElectricMagic_Cast02_lightmed.ogg
-rw-r--r-- 1 adn 197121   36406 Apr 15 21:47 RPG3_IceMagic_Cast02.ogg

862:    beam_width = 2,
1128:beam_tick_timer = 0
2752:        if mods['beam_width+'] then line_width = line_width*1.5 end
2753:        if mods['beam_width++'] then line_width = line_width*2 end
2754:        if mods['beam_width+++'] then line_width = line_width*3 end
2755:        if mods['beam_width-'] then line_width = line_width*0.75 end
2756:        if mods['beam_width--'] then line_width = line_width*0.5 end
3625:          self.beam_tick_timer = 0
3700:        self.beam_tick_timer = self.beam_tick_timer + dt
3711:        local beam_width = def.beam_width
3712:        if mods['beam_width+'] then beam_width = beam_width + 1 end
3713:        if mods['beam_width++'] then beam_width = beam_width + 2 end
3714:        if mods['beam_width+++'] then beam_width = beam_width + 3 end
3715:        if mods['beam_width-'] then beam_width = math.max(beam_width - 1, 1) end
3716:        if mods['beam_width--'] then beam_width = math.max(beam_width - 2, 1) end
3768:        if not self.beam_paths then self.beam_paths = {} end
3774:        local cap_r = beam_width/2
3781:        if self.beam_tick_timer >= tick_rate then
3782:          self.beam_tick_timer = self.beam_tick_timer - tick_rate
3795:        local beam_chain_hit_radius = beam_width*3
3799:          if not self.beam_paths then self.beam_paths = {} end
3800:          if not self.beam_paths[bi] then self.beam_paths[bi] = {} end
3809:            }, self.beam_paths[bi], dt)
3815:            self.beam_paths[bi] = {{x = src.x, y = src.y}, {x = ex, y = ey}}
3816:            beam_path = self.beam_paths[bi]
3886:          local center_width = def.beam_width
3889:          -- Guide lines (only if beam_width > base)
3890:          if beam_width > def.beam_width then
3903:                local offset = beam_width*1.5
3933:            local tip_radius = (beam_width + 1.5)*self.spring.beam_tip.x
... [2 more lines]

3818 
3819              -- Clip beam path at walls
3820              for i = 1, #beam_path - 1 do
3821                local hit = an:raycast(beam_path[i].x, beam_path[i].y, beam_path[i + 1].x, beam_path[i + 1].y, {'wall'})
3822                if hit then
3823                  beam_path[i + 1] = {x = hit.point_x, y = hit.point_y}
3824                  -- Remove all points after the wall hit
3825                  for j = #beam_path, i + 2, -1 do beam_path[j] = nil end
3826                  break
3827                end
3828              end
3829    
3830              -- Chain: extend path when beam tip is near enemies
3831              local chain_remaining = beam_chain_count
3832              local chain_hit = {}
3833              if chain_remaining > 0 then
3834                local bx, by = beam_path[#beam_path].x, beam_path[#beam_path].y
3835                local beam_r = #beam_path >= 2 and math.atan(beam_path[#beam_path].y - beam_path[#beam_path-1].y, beam_path[#beam_path].x - beam_path[#beam_path-1].x) or src.r
3836                for _, e in ipairs(cached_enemies) do
3837                  if not e.dead and not chain_hit[e.id] then
3838                    local d = math.distance(bx, by, e.x, e.y)
3839                    if d < beam_chain_hit_radius then
3840                      chain_hit[e.id] = true
3841                      chain_remaining = chain_remaining - 1
3842                      bx, by = e.x, e.y
3843                      beam_path[#beam_path] = {x = bx, y = by}
3844                      local next_target, next_d = nil, math.huge
3845                      for _, e2 in ipairs(cached_enemies) do
3846                        if not e2.dead and not chain_hit[e2.id] then
3847                          local d2 = math.distance(bx, by, e2.x, e2.y)
... [55 more lines]

3779         local scroll = math.loop(an.time*scroll_speed, stride)
3780            local do_tick = false
3781            if self.beam_tick_timer >= tick_rate then
3782              self.beam_tick_timer = self.beam_tick_timer - tick_rate
3783              do_tick = true
3784            end
3785            -- Cast on expire counter
3786            if not self.beam_expire_counter then self.beam_expire_counter = 0 end
3787            if do_tick then self.beam_expire_counter = self.beam_expire_counter + 1 end
3788    
3789            -- Chain setup for beam
3790            local beam_chain_count = mods.chain or 0
3791            local beam_chain_range = 80
3792            if mods['chain_range+'] then beam_chain_range = beam_chain_range*1.2 end
3793            if mods['chain_range++'] then beam_chain_range = beam_chain_range*1.5 end
3794            if mods['chain_range+++'] then beam_chain_range = beam_chain_range*2.0 end
3795            local beam_chain_hit_radius = beam_width*3
3796    
3797            for bi, src in ipairs(beam_sources) do
3798              -- Build homing/arc path using shared function
3799              if not self.beam_paths then self.beam_paths = {} end
3800              if not self.beam_paths[bi] then self.beam_paths[bi] = {} end
3801              local beam_path
3802              if homing or mods.returning_arc then
3803                beam_path, self.beam_arc_dir = build_homing_path({
3804                  x = src.x, y = src.y, r = src.r,
3805                  max_length = self.beam_current_length,
3806                  homing = homing, returning_arc = mods.returning_arc,
3807                  arc_dir = self.beam_arc_dir,
3808                  return_x = fire_x, return_y = fire_y,
... [10 more lines]

3943:            if do_tick then
3957:          if do_tick then
3971:            for _, e in ipairs(cached_enemies) do
4005:          if do_tick and mods.cast_on_expire and self.beam_expire_counter % mods.cast_on_expire == 0 then
4016:        if do_tick then
4542:            for _, e in ipairs(cached_enemies) do
4554:            for _, e in ipairs(cached_enemies) do
4563:              for _, e in ipairs(cached_enemies) do
4612:                for _, e in ipairs(cached_enemies) do
4670:                for _, e in ipairs(cached_enemies) do

[Showing results with pagination = limit: 10, offset: 20]

3957           if do_tick then
3958                -- Build beam bounding box for early rejection
3959                local bmin_x, bmin_y = math.huge, math.huge
3960                local bmax_x, bmax_y = -math.huge, -math.huge
3961                for i = 1, #beam_path do
3962                  local bp = beam_path[i]
3963                  if bp.x < bmin_x then bmin_x = bp.x end
3964                  if bp.x > bmax_x then bmax_x = bp.x end
3965                  if bp.y < bmin_y then bmin_y = bp.y end
3966                  if bp.y > bmax_y then bmax_y = bp.y end
3967                end
3968                local bm = beam_width*3
3969                bmin_x, bmin_y = bmin_x - bm, bmin_y - bm
3970                bmax_x, bmax_y = bmax_x + bm, bmax_y + bm
3971                for _, e in ipairs(cached_enemies) do
3972                  if not e.dead and e.x >= bmin_x and e.x <= bmax_x and e.y >= bmin_y and e.y <= bmax_y then
3973                    for i = 1, #beam_path - 1 do
3974                      local ax, ay = beam_path[i].x, beam_path[i].y
3975                      local abx, aby = beam_path[i + 1].x - ax, beam_path[i + 1].y - ay
3976                      local seg_len_sq = abx*abx + aby*aby
3977                      if seg_len_sq > 0 then
3978                        local t = math.clamp(((e.x - ax)*abx + (e.y - ay)*aby)/seg_len_sq, 0, 1)
3979                        local closest_x = ax + t*abx
3980                        local closest_y = ay + t*aby
3981                        local dist = math.distance(e.x, e.y, closest_x, closest_y)
3982                        if dist < beam_width*3 then
3983                          local beam_r = e:take_damage(damage_components(def), 0.5)
3984                          if self.beam_cast_log then self.beam_cast_log:add_hit(beam_r, e, 'beam') end
3985                          -- Beam knockback: reduced force (0.3x) since ticks are frequent
3986                          local kb_force, kb_duration = 0, 0
... [20 more lines]

Let me verify the physics_raycast and projectile API surfaces I'm planning to reuse.

1    --[[
2     projectile.lua — straight-line attack carrier (minimal v1 port).
3   
4     Scope of this first pass (per session 2 decisions):
5       • Default rounded-rect shape (w=10, h=4). No shape variants yet
6         (ball_lightning circle, wind_slash blades, arc crescent come later).
7       • Straight-line travel only. No homing / linear-return / arc-return.
8       • Sensor box collider — projectiles pass through enemies/walls
9         visually. Enemy hits are surfaced via sensor_entities_begin in
10        main.lua. Walls are caught by a per-frame forward raycast (sensors
11        don't physically collide).
12      • Spawn juice: spring pull on 'main' + 0.2s white flash.
13      • Wall hit:  6r/0.15s hit_circle + 2 particles, then die.
14      • Enemy hit: full damage + hit_effect sprite burst, then die. No
15        pierce/chain in this first pass — that's gameplay-side anyway.
16      • Death:     8r/0.2s hit_circle + 2 particles, particle color =
17                   edition_base_color(self.edition) or self.color.
18  
19    Caller API (per session 2 decision — "everything in spawn_projectile,
20    caster passed in, everything else derived"):
21      spawn_projectile(caster, {
22        aim_r,             -- optional, default: caster -> main_camera.mouse
23        spawn_offset,      -- default 8 (v1's hardcoded muzzle offset)
24        color,             -- default red
25        edition,           -- default caster.edition
26        max_range,         -- default nil = unlimited
27        damage,            -- default 1
28        speed,             -- default 190
29        w, h,              -- default 10, 4
30      })
... [255 more lines]

Got it. Here's the proposal — full file for beam.lua, then main.lua diffs.

1. Sound asset

Copy Invoker/v1/assets/RPG3_ElectricMagic_Cast02.ogg → attack-template/assets/RPG3_ElectricMagic_Cast02.ogg (~97 KB).

2. New file attack-template/beam.lua

--[[
  beam.lua — line / beam attack carrier (instant mode, minimal v1 port).

  Scope of this first pass:
    • Straight line from caster's muzzle along aim_r out to `length`,
      clipped at the first wall (raycast).
    • Single damage pass at fire time. Hit query is a rotated rect
      (width = beam length along aim, height = width*6) — same engine
      call we use for rect areas. Anyone in the rect takes one hit.
    • Visual: v1 railgun_flash (anchor.c-side reference at line 11824) —
      dashed line built once, segments grouped into clumps of 2-4,
      each clump's two ends tween inward toward its midpoint with
      staggered delays so the line retracts raggedly over `duration`.
    • Caster juice: directional shake, recoil 'shoot' spring, 0.15s
      flash, muzzle hit_circle + 2 forward cone particles. Same package
      as spawn_projectile.

  Persistent mode (continuous channeled beam with drone + tick damage +
  beam tip flash) is the next iteration on this carrier.

  Caller API (mirrors spawn_projectile):
    spawn_beam(caster, {
      aim_r,         -- optional, default: caster → main_camera.mouse
      spawn_offset,  -- caster→muzzle offset, default 8
      length,        -- default 150 (v1 beam_length)
      width,         -- default 2 (v1 beam_width)
      damage,        -- default 2
      duration,      -- visual lifetime, default 0.25 (railgun_flash default)
      color,         -- default red
      edition,       -- default caster.edition
      fire_sounds,   -- {{sound, vol}, ...}; played at fire time, default silent
    })
]]


beams = {}


beam = class()


function beam:new(x, y, args)
  args = args or {}
  self.x = x                       -- muzzle (NOT caster body center)
  self.y = y
  self.r        = args.r or 0
  self.length   = args.length or 150
  self.width    = args.width or 2
  self.damage   = args.damage or 2
  self.duration = args.duration or 0.25
  self.color    = args.color and color_clone(args.color) or color_clone(red)
  self.edition  = args.edition or 0

  -- Wall raycast: clip the beam at the first wall it hits. raycast_entity
  -- returns {point_x, point_y, ...} on hit, nil on miss. Same helper
  -- projectile uses for its per-frame forward probe.
  local cos_r, sin_r = math.cos(self.r), math.sin(self.r)
  local end_x = self.x + self.length*cos_r
  local end_y = self.y + self.length*sin_r
  local hit = raycast_entity(self.x, self.y, end_x, end_y, {'wall'})
  if hit then
    end_x, end_y = hit.point_x, hit.point_y
    self.length = math.length(end_x - self.x, end_y - self.y)
  end
  self.end_x, self.end_y = end_x, end_y

  make_entity(self)
  self.timer = timer_new()

  -- Single damage pass at fire time. Lighter per-enemy FX than the
  -- instant area pop (1-2 narrow particles, no hit_effect sprite burst)
  -- — matches v1's beam tick (line 3957-4001), since v1's instant
  -- railgun fire effectively does one beam-tick's worth of hits.
  self:apply_damage()

  -- Visual: clumped retracting dashes (v1 railgun_flash, lines 11824-11876).
  self:build_clumps()
  for _, clump in ipairs(self.clumps) do
    local mid = (clump.clump_start + clump.clump_end)/2
    local delay = random_float(0, self.duration*0.4)
    local tween_dur = self.duration - delay
    timer_after(self.timer, delay, function()
      timer_tween(self.timer, tween_dur, clump, {visible_start = mid, visible_end = mid}, math.cubic_in)
    end)
  end
  -- +0.05s grace so the final retract settles before despawn.
  timer_after(self.timer, self.duration + 0.05, function() entity_kill(self) end)
end


function beam:apply_damage()
  local mid_x = (self.x + self.end_x)/2
  local mid_y = (self.y + self.end_y)/2
  local hit_h = self.width*6                 -- ±width*3 perp window (v1 line 3982)
  local enemies = query_entities_box(mid_x, mid_y, self.length, hit_h, self.r, {'enemy'})
  local pc = edition_base_color(self.edition) or self.color
  for _, e in ipairs(enemies or {}) do
    if e.hit and not e._dead then
      e:hit(self.damage)
      spawn_hit_effect(e.x, e.y)
      for i = 1, random_int(1, 2) do
        spawn_particle(e.x, e.y, {
          velocity = random_float(30, 80),
          duration = random_float(0.1, 0.2),
          w        = 4,
        }):change_color(0.5, pc)
      end
    end
  end
end


-- Generates dash segments along the beam length and groups them into
-- 2-4-segment clumps. Each clump tracks [visible_start, visible_end]
-- that get tweened inward toward the clump's midpoint at construction
-- time to produce the ragged retraction.
function beam:build_clumps()
  local dash_len, gap_len = 5, 6
  local stride = dash_len + gap_len
  local all_segs = {}
  local d = 0
  while d < self.length do
    local seg_end = math.min(d + dash_len, self.length)
    if seg_end - d > 0.5 then
      all_segs[#all_segs + 1] = {start_d = d, end_d = seg_end}
    end
    d = d + stride
  end
  self.clumps = {}
  local i = 1
  while i <= #all_segs do
    local clump_size = math.min(random_int(2, 4), #all_segs - i + 1)
    local clump_start = all_segs[i].start_d
    local clump_end   = all_segs[i + clump_size - 1].end_d
    local segs = {}
    for j = i, i + clump_size - 1 do
      segs[#segs + 1] = {start_d = all_segs[j].start_d, end_d = all_segs[j].end_d}
    end
    self.clumps[#self.clumps + 1] = {
      clump_start   = clump_start,
      clump_end     = clump_end,
      visible_start = clump_start,
      visible_end   = clump_end,
      segs          = segs,
    }
    i = i + clump_size
  end
end


function beam:update(dt)
  timer_update(self.timer, dt)
end


function beam:destroy() end


function beam:draw(layer)
  set_edition(layer, self.edition)
  local c = self.color()
  local cos_r, sin_r = math.cos(self.r), math.sin(self.r)
  for _, clump in ipairs(self.clumps) do
    if clump.visible_end - clump.visible_start > 0.3 then
      for _, seg in ipairs(clump.segs) do
        local sd = math.max(seg.start_d, clump.visible_start)
        local ed = math.min(seg.end_d, clump.visible_end)
        if ed - sd > 0.3 then
          local sx = self.x + sd*cos_r
          local sy = self.y + sd*sin_r
          local ex = self.x + ed*cos_r
          local ey = self.y + ed*sin_r
          layer_line(layer, sx, sy, ex, ey, 2, c)
        end
      end
    end
  end
  set_edition(layer, 0)
end


--[[
  spawn_beam(caster, opts)

  Fire helper. Mirrors spawn_projectile: derives aim_r from
  caster→main_camera.mouse (overridable via opts.aim_r), computes the
  muzzle position 8 units in front of the caster, applies the full
  cast juice package, then constructs the beam.
]]
function spawn_beam(caster, opts)
  opts = opts or {}
  local aim_r = opts.aim_r or math.angle_to_point(caster.x, caster.y,
                                                  main_camera.mouse.x,
                                                  main_camera.mouse.y)
  local off   = opts.spawn_offset or 8
  local sx    = caster.x + off*math.cos(aim_r)
  local sy    = caster.y + off*math.sin(aim_r)
  local color = opts.color or red

  local b = beam(sx, sy, {
    r        = aim_r,
    length   = opts.length,
    width    = opts.width,
    damage   = opts.damage,
    duration = opts.duration,
    color    = color,
    edition  = opts.edition or caster.edition,
  })
  beams[#beams + 1] = b

  shake_push(main_camera.shake, aim_r, 3)
  if caster.spring then spring_pull(caster.spring, 'shoot', 0.25) end
  if caster.timer then
    caster.flashing = true
    timer_after(caster.timer, 0.15, 'shoot_flash', function() caster.flashing = false end)
  end

  local pc = edition_base_color(caster.edition) or color
  spawn_hit_circle(sx, sy, {radius = 7, duration = 0.2})
  for i = 1, 2 do
    spawn_particle(sx, sy, {
      angle    = aim_r + random_float(-math.pi/4, math.pi/4),
      velocity = random_float(40, 200),
      duration = random_float(0.3, 0.6),
      w        = random_choice({6, 8}),
    }):change_color(0.5, pc)
  end

  if opts.fire_sounds then
    for _, fs in ipairs(opts.fire_sounds) do
      sfx(fs.sound, fs.vol)
    end
  end

  return b
end

3. main.lua diffs

a. Require: lua require('projectile') require('area') require('beam') -- ← NEW sound_tuning = require('sound_tuning')

b. Volume: lua arrow_shoot = 0.46, -- v1 line 65 dot_tick = 0.49, -- v1 line 14 beam_cast = 0.42, -- v1 line 22 -- ← NEW }

c. Sound load: lua sounds.dot_tick = sound_load('assets/Click sound 37 + Body Fall 18.ogg') -- Standard beam cast (force flavor). v1 plays this on beam-carrier -- activations and on railgun release (line 153, 3661). sounds.beam_cast = sound_load('assets/RPG3_ElectricMagic_Cast02.ogg') -- ← NEW

d. Bind: lua bind('fire_projectile', 'mouse:1') bind('fire_area', 'mouse:2') bind('fire_beam', 'mouse:3') -- ← NEW

e. Fire handler (after fire_area block): lua if is_pressed('fire_beam') and not p._dead then spawn_beam(p, { damage = 2, fire_sounds = {{sound = sounds.beam_cast, vol = volumes.beam_cast}}, }) end

f. Update loop (after areas): lua for i = #beams, 1, -1 do local b = beams[i] if b._dead then table.remove(beams, i) else b:update(dt) end end

g. Draw loop (between areas and fxs): lua for _, a in ipairs(areas) do a:draw(game_layer) end for _, b in ipairs(beams) do b:draw(game_layer) end -- ← NEW for _, f in ipairs(fxs) do f:draw(game_layer) end

h. Header docstring — add to KEY BINDINGS section: Mouse 3 (middle) fire instant beam toward cursor

Notes / sanity checks

• raycast_entity not physics_raycast — verified from projectile.lua line 108. Returns {point_x, point_y, ...} on hit.
• query_entities_box rotated rect — verified from area.lua. Signature (x, y, w, h, r, tags), w along x-local (after rotation = along aim_r), h perpendicular. Same call we use for rect areas.
• Hit window width*6 — v1's beam_width*3 perpendicular check, so total height = ±width3 = width6. With default width=2 → height 12.
• Shake force 3 — matches projectile (precision attack), not area (explosion-feel).
• No knockback — v1 instant fire has knockback only with mods set; base behavior is plain damage. Defer.
• No tip circle, no leading-edge white flash, no scroll — those are persistent-beam visuals (tip_radius = (beam_width + 1.5)*self.spring.beam_tip.x, flash_dist = scroll_speed*tick_rate). Instant uses railgun_flash retract instead.
• beam:destroy empty — beam has no collider to clean up (it's query-only like area).

Test plan

1. ./run.bat
2. Middle-click in a direction — beam should appear instantly as a dashed line from player muzzle to ~150 units away (or shorter if walls are in the way). Line clumps retract toward their midpoints over ~0.25s.
3. Enemies along the beam should take damage + spawn light particles + hit-effect burst.
4. Aim through the central wall — beam should clip at the wall surface, not pass through.
5. Audio: a single beam_cast plays on fire.
6. Caster gets the usual recoil shake + spring + flash + muzzle puff.
7. Combine with mouse:1 / mouse:2 in the same session — projectile, area, beam should coexist cleanly.

Tunable knobs if anything feels off: length (150), width (2 — affects hit_h via *6), duration (0.25), shake force (3).

Want me to write?

Go ahead.

-rw-r--r-- 1 adn 197121 96841 May 18 10:01 E:/a327ex/attack-template/assets/RPG3_ElectricMagic_Cast02.ogg

File created successfully at: E:\a327ex\attack-template\beam.lua (file state is current in your context — no need to Read it back)

Now the main.lua edits.

The file E:\a327ex\attack-template\main.lua has been updated successfully. (file state is current in your context — no need to Read it back)

The file E:\a327ex\attack-template\main.lua has been updated successfully. (file state is current in your context — no need to Read it back)

The file E:\a327ex\attack-template\main.lua has been updated successfully. (file state is current in your context — no need to Read it back)

The file E:\a327ex\attack-template\main.lua has been updated successfully. (file state is current in your context — no need to Read it back)

The file E:\a327ex\attack-template\main.lua has been updated successfully. (file state is current in your context — no need to Read it back)

The file E:\a327ex\attack-template\main.lua has been updated successfully. (file state is current in your context — no need to Read it back)

The file E:\a327ex\attack-template\main.lua has been updated successfully. (file state is current in your context — no need to Read it back)

Syntax-check both files.

beam.lua: ok
main.lua: ok

Both parse clean. Summary:

• attack-template/beam.lua (new, ~225 lines) — instant beam carrier. Straight line from caster muzzle, wall-clipped, single rotated-rect damage pass (width*6 perp window), railgun_flash visual (2–4-segment clumps retracting to midpoints with staggered delays over 0.25s). spawn_beam(caster, opts) helper mirrors spawn_projectile's structure (caster juice + muzzle FX + fire_sounds).
• attack-template/assets/RPG3_ElectricMagic_Cast02.ogg — copied from v1 (beam_cast, vol 0.42).
• attack-template/main.lua — require('beam'), sound load + volume, mouse:3 bind, fire handler, update + draw loops, all in matching positions to the existing carriers.

Test plan

1. ./run.bat
2. Middle-click in a direction — dashed line from player muzzle out to ~150 units (or shorter if walls clip), clumps retract over ~0.25s.
3. Enemies along the line should take 2 damage + hit-effect burst + 1–2 narrow particles.
4. Aim toward / through the central wall — beam should stop at the wall surface, not pass.
5. Single beam_cast plays on fire; recoil shake + spring + flash + muzzle puff fire on the player.
6. Combine mouse:1 / mouse:2 / mouse:3 in the same session — all three carriers should coexist; beam should layer above areas but below particle FX.
7. Tune beam_cast via F3 (Up/Down to navigate, [/] for bits, S to save).

Tunables if it feels off:

• length 150 (in spawn_beam call, or default in beam.lua)
• width 2 — affects perp hit window via *6
• duration 0.25 — retract time
• Shake force 3

You can remove the current sound for it. The end of the beam should have a hit circle with particles as well as it happens.

Two changes. Diffs first.

1. beam.lua — tip impact FX

Add after self.end_x, self.end_y = end_x, end_y (and before make_entity(self)):

  self.end_x, self.end_y = end_x, end_y

  -- Tip impact FX: matches the muzzle's white hit_circle + 2 cone
  -- particles, but the cone fires BACKWARD along the beam (toward
  -- the caster) so it reads as "sparks bouncing back from impact"
  -- rather than another forward muzzle blast. Fires unconditionally
  -- — whether the beam hit a wall or aired-out at max range, the tip
  -- is "where this beam stopped."
  local pc = edition_base_color(self.edition) or self.color
  spawn_hit_circle(self.end_x, self.end_y, {radius = 7, duration = 0.2})
  for i = 1, 2 do
    spawn_particle(self.end_x, self.end_y, {
      angle    = self.r + math.pi + random_float(-math.pi/4, math.pi/4),
      velocity = random_float(40, 200),
      duration = random_float(0.3, 0.6),
      w        = random_choice({6, 8}),
    }):change_color(0.5, pc)
  end

  make_entity(self)

Mirrors the muzzle pattern (radius 7, 2 particles, velocity 40–200) — symmetric weight at both ends of the line. Particles cone toward the caster (angle = aim + π ± π/4) so they read as impact spray rather than continuing the beam.

2. main.lua — strip the beam_cast sound

a. Remove volume entry: lua dot_tick = 0.49, -- v1 line 14 beam_cast = 0.42, -- v1 line 22 ← DELETE this line }

b. Remove sound load + its 2-line comment: lua -- Standard beam cast (force flavor). v1 plays this on beam-carrier -- activations and on railgun release (lines 153, 3661). sounds.beam_cast = sound_load('assets/RPG3_ElectricMagic_Cast02.ogg') (All three lines deleted.)

c. Strip fire_sounds from the fire handler: lua if is_pressed('fire_beam') and not p._dead then spawn_beam(p, { damage = 2, }) end

3. Asset file

Delete attack-template/assets/RPG3_ElectricMagic_Cast02.ogg so nothing's left dangling. (If you'd rather keep it on disk for the persistent beam later, say so and I'll leave it.)

Apply?

Go ahead.

The file E:\a327ex\attack-template\beam.lua has been updated successfully. (file state is current in your context — no need to Read it back)

The file E:\a327ex\attack-template\main.lua has been updated successfully. (file state is current in your context — no need to Read it back)

The file E:\a327ex\attack-template\main.lua has been updated successfully. (file state is current in your context — no need to Read it back)

The file E:\a327ex\attack-template\main.lua has been updated successfully. (file state is current in your context — no need to Read it back)

ls: cannot access 'E:/a327ex/attack-template/assets/RPG3_ElectricMagic_Cast02.ogg': No such file or directory

beam.lua: ok
main.lua: ok

Asset deleted, both files parse clean.

Test plan

1. ./run.bat
2. Middle-click — beam fires silently now. Both ends should pop: muzzle puff at the player (forward cone) + tip puff at the end (backward cone, sparks pointing back toward you).
3. Aim at the wall — tip FX should land flush against the wall surface.
4. Aim into empty space — tip FX should land at full range (~150 units out, well before the arena edge).
5. Tip particles should bleed to player edition color via change_color, same as muzzle particles.

Have the hit circle start with the edition color and flash white.

Let me check fx.lua to confirm how to set the starting color and how change_color works.

1    --[[
2     fx.lua — one-shot visual effects.
3   
4     Two entity types ported from v1's hit_circle / hit_particle. They
5     exist for a brief duration, draw something, and auto-kill. Spawned
6     by gameplay code (projectile spawn, wall hit, area damage in the
7     future) via spawn_hit_circle / spawn_particle. Both live in the
8     global fxs[] array, updated and drawn from main.lua.
9   
10    fx_hit_circle — filled circle that SHRINKS from initial radius to
11      0 over `duration` (cubic_in_out). Starts white (the `text`
12      palette token); the optional :change_color(fraction, target)
13      chainable swaps it to the spell color at the given fraction of
14      duration, giving the v1 "flash white, then bleed into element
15      color" feel.
16  
17    fx_particle — rotated rounded rectangle that flies outward at
18      self.angle, with w/h/velocity tweening down to {2, 2, 0} over
19      `duration` (sine_in_out). Same white-then-color flash via
20      :change_color. Used for cast bursts, wall impact debris, and
21      (future) on-hit particles.
22  
23    Both kinds match v1 visuals byte-for-byte where possible —
24    ability_layer is replaced with the game_layer caller, the object
25    tree is replaced with explicit fxs[] iteration, an.random calls
26    become random_float / random_choice. Otherwise the math, easings,
27    defaults, and feel are unchanged.
28  ]]
29  
30  
... [194 more lines]

Single-line tweak. Diff:

  spawn_hit_circle(self.end_x, self.end_y, {radius = 7, duration = 0.2, color = pc}):change_color(0.6, text)

(was spawn_hit_circle(self.end_x, self.end_y, {radius = 7, duration = 0.2}).)

What this does:

• color = pc → hit_circle starts at edition color (pc = edition_base_color(self.edition) or self.color, computed two lines above for the particles).
• :change_color(0.6, text) → at 60% of the 0.2s lifetime (0.12s), swaps to text (white). Inverts projectile's pattern (change_color(0.6, pc), white-then-color); here it's color-then-white. The hit_circle is already shrinking via cubic_in_out, so by the time it goes white it's at ~40% of original size — reads as a bright white punctuation flash before it disappears.

Want me to commit at 0.6, or a different fraction? (Lower = white phase longer; higher = white flash is shorter and snappier at the end.)

The particles are angled towards the caster, should be just random in all directions.

Combined diff (the 0.6 hit_circle and the particle direction):

  -- Tip impact FX: hit_circle starts at the edition color and flashes
  -- to white at 60 % of its 0.2 s shrink — reads as "energy beam
  -- detonates at the endpoint, punches bright white as it dissipates."
  -- Particles spray radially outward. Fires unconditionally whether
  -- the beam hit a wall or aired-out at max range; the tip is "where
  -- this beam stopped."
  local pc = edition_base_color(self.edition) or self.color
  spawn_hit_circle(self.end_x, self.end_y, {radius = 7, duration = 0.2, color = pc}):change_color(0.6, text)
  for i = 1, 2 do
    spawn_particle(self.end_x, self.end_y, {
      angle    = random_float(0, 2*math.pi),
      velocity = random_float(40, 200),
      duration = random_float(0.3, 0.6),
      w        = random_choice({6, 8}),
    }):change_color(0.5, pc)
  end

Three changes:

1. spawn_hit_circle gets color = pc and :change_color(0.6, text) (the change I proposed last turn).
2. spawn_particle angle becomes random_float(0, 2*math.pi) (radial spread).
3. Comment block rewritten to describe the new behavior — no more "cone fires backward" claim.

Apply?

Yes.

The file E:\a327ex\attack-template\beam.lua has been updated successfully. (file state is current in your context — no need to Read it back)

beam.lua: ok

Applied. Test: middle-click — tip hit_circle should now start in player-edition color and punch to white as it shrinks; particles should spray radially in all directions from the tip.

Hit circle doesn't seem to be flashing white?

Let me check what text actually resolves to in this project.

61:text          = color(240, 240, 235)

24:        layer_text(layer, msg, font, x, y, text())
51:-- panels, borders, and text. The 9-step ladder gives enough resolution to
61:text          = color(240, 240, 235)
78:fg_color      = text

Confirmed via palette.lua: text = color(240, 240, 235) (soft white) and fg_color = text (alias). So the color reference is fine. The issue is timing.

The hit_circle's radius tweens to 0 via math.cubic_in_out. At fraction 0.6 of the 0.2s duration, the cubic-in-out is at progress ~0.74, so the radius is at 7 * (1 - 0.74) = ~1.8 px. That's basically a single pixel at 480×270 — the white flash IS happening, but on a dot too small to perceive.

Drop the fraction so the white kicks in while the circle is still visibly sized.

spawn_hit_circle(self.end_x, self.end_y, {radius = 7, duration = 0.2, color = pc}):change_color(0.3, text)

At fraction 0.3, cubic-in-out progress is ~0.11, so radius is ~6.2 px (still close to full). The white phase then lasts from 0.06s to 0.2s — visible as a clear color → white transition for ~0.14s before it fully shrinks out.

Worth noting this is now closer to "edition color punches in for the first ~third, then white-flashes through the rest." If you wanted "color dominates, brief white at the very end," that needs a different fix (e.g. extend duration to 0.3s and bump fraction back up). But for a perceivable flash with the current 0.2s lifetime, 0.3 is the call.

Apply?

Yes.

The file E:\a327ex\attack-template\beam.lua has been updated successfully. (file state is current in your context — no need to Read it back)

Also tweak the comment so the "60 %" claim doesn't lie. Diff:

  -- Tip impact FX: hit_circle starts at the edition color and flashes
  -- to white at 30 % of its 0.2 s shrink (~0.06 s in, while the disc
  -- is still near full size) — reads as "energy beam detonates at the
  -- endpoint, punches bright white as it dissipates." Particles spray
  -- radially outward. Fires unconditionally whether the beam hit a
  -- wall or aired-out at max range; the tip is "where this beam stopped."

Trivial — applying.

The file E:\a327ex\attack-template\beam.lua has been updated successfully. (file state is current in your context — no need to Read it back)

beam.lua: ok

Test: middle-click — at the tip you should see a clear ed-color → white transition while the disc is still well-sized, then it shrinks out white.

The hit circle should flash white first then go to the edition color. Also, hit circle should be drawn above the beam itself.

Let me verify the layer command order in Anchor 2, because in the current main.lua the fxs draw call comes AFTER the beams draw call — so the hit_circle should already be on top. Something might be inverting this.

4:  Layers are FBOs that accumulate draw commands during the frame. Commands are
112:function layer_circle(lyr, x, y, radius, color)
120:function layer_circle_line(lyr, x, y, radius, color, line_width)
124:function layer_line(lyr, x1, y1, x2, y2, width, color)
211:function layer_draw(lyr, x, y)
251:--- Process queued draw commands into this layer's FBO.
252:function layer_render(lyr)
256:function layer_draw_from(lyr, source, shader)

1    --[[
2     Layer module — procedural API over the engine layer handle.
3   
4     Layers are FBOs that accumulate draw commands during the frame. Commands are
5     deferred and processed via layer_render() with GL batching. Composite to the
6     screen with layer_draw().
7   
8     Usage:
9       game_layer = layer_new('game')
10      layer_rectangle(game_layer, 100, 100, 50, 30, color)
11      layer_render(game_layer)
12      layer_draw(game_layer)
13  
14    State table shape (from layer_new): { name, handle, parallax_x, parallax_y }
15    All layer_* functions below take that table as the first argument `lyr`.
16  
17    ---------------------------------------------------------------------------
18    ENGINE NAME CONFLICTS (Lua globals registered by anchor.c)
19  
20    The C engine binds the same symbol names to raw engine implementations whose
21    first argument is a C layer pointer (lightuserdata), e.g. layer_rectangle(ptr, ...).
22  
23    This file captures those implementations in `eng` at load time, then REPLACES
24    the globals with wrappers whose first argument is a layer state table from
25    layer_new() (field .handle holds the pointer). Wrappers also accept a raw
26    handle for occasional interop.
27  
28    After require('anchor.layer'), direct engine-style calls like
29    layer_rectangle(userdata_ptr, x, y, w, h, c) no longer use the C binding
30    unless you passed a lightuserdata: the wrapper treats a non-table first arg
... [10 more lines]

100      parallax_y = 1,
101   }
102   if layers then
103     layers[name] = lyr
104   end
105   return lyr
106 end
107 
108 function layer_rectangle(lyr, x, y, w, h, color)
109   eng.rectangle(lyr_handle(lyr), x, y, w, h, color)
110 end
111 
112 function layer_circle(lyr, x, y, radius, color)
113   eng.circle(lyr_handle(lyr), x, y, radius, color)
114 end
115 
116 function layer_rectangle_line(lyr, x, y, w, h, color, line_width)
117   eng.rectangle_line(lyr_handle(lyr), x, y, w, h, color, line_width or 1)
118 end
119 
120 function layer_circle_line(lyr, x, y, radius, color, line_width)
121   eng.circle_line(lyr_handle(lyr), x, y, radius, color, line_width or 1)
122 end
123 
124 function layer_line(lyr, x1, y1, x2, y2, width, color)
125   eng.line(lyr_handle(lyr), x1, y1, x2, y2, width, color)
126 end
127 
128 function layer_capsule(lyr, x1, y1, x2, y2, radius, color)
129   eng.capsule(lyr_handle(lyr), x1, y1, x2, y2, radius, color)
... [30 more lines]

[Request interrupted by user]

What layers do you currently have active in the project?

175:floor_layer = layer_new('floor')
176:game_layer  = layer_new('game')
180:debug_layer = layer_new('debug')
432:  layer_render(floor_layer)
433:  layer_draw(floor_layer)
444:  layer_render(game_layer)
445:  layer_draw(game_layer)
479:    layer_render(debug_layer)
480:    layer_draw(debug_layer)

Three layers, drawn bottom-to-top in this order:

1. floor_layer — bg fill rect + walls. Drawn first (lowest).
2. game_layer — player, seekers, projectiles, areas, beams, fxs. The whole "world" stack.
3. debug_layer — F2 collider overlay only. No edition shader, no camera. Drawn last so it sits on top of everything when toggled.

The sound-tuner has its own tune_layer registered inside sound_tuner.lua (drawn via sound_tuner_draw() at the very end of draw()), but that's only active during F3 tuning.

Within game_layer, draw submissions are in this order: p → seekers → projectiles → areas → beams → fxs

Per layer.lua's header docs, "Commands are deferred and processed via layer_render() with GL batching" — submission order is FIFO, so later submissions draw on top within the same layer. That means fxs (where the tip hit_circle lives) should already be drawing above beams.

If you're still seeing the hit_circle behind the beam, the GL batching may be re-ordering by primitive type (lines vs circles get batched separately, breaking submission-order). That's an engine-level thing I'd need to verify by reading the C side, but the simplest project-side fix is to put the tip FX on a layer of its own that renders after game_layer. Want me to investigate the batching question first, or just add a fx_layer and move on?

floor, wall, game, effects. Create the additional ones and place the appropriate objects in each. Projectiles, areas, beams should go in game after players and enemies. Hit circles, particles, etc in effects.

Diffs to main.lua. Two sections.

a. Layer declarations (~line 168–181)

Replace: lua floor_layer = layer_new('floor') game_layer = layer_new('game') -- Dedicated layer for the F2 collider overlay. Drawn on top of everything -- with no edition shader interaction (we never call set_edition on this -- layer, so its u_edition stays at the default 0 = passthrough). debug_layer = layer_new('debug')

With: lua -- Layer stack, drawn bottom-to-top: -- floor — bg fill only (no camera, no edition) -- wall — wall bodies (camera, edition) -- game — player + seekers + attack carriers (projectile/area/beam) -- effects — hit_circles, particles, hit_effects spawned by anything -- debug — F2 collider overlay (no camera, no edition) floor_layer = layer_new('floor') wall_layer = layer_new('wall') game_layer = layer_new('game') effects_layer = layer_new('effects') debug_layer = layer_new('debug')

b. draw() function — split into 4 layer blocks (was 2)

Replace this whole block (~lines 421–445):

function draw()
  layer_rectangle(floor_layer, 0, 0, width, height, bg())

  -- Walls go on the floor layer so the player/seekers/fxs draw on top of
  -- them. The wall's color is the slate from wall.lua (60,60,70) — dim
  -- enough that bright attack effects will pop cleanly when we port
  -- carriers later.
  camera_attach(main_camera, floor_layer)
  for _, w in ipairs(walls) do w:draw(floor_layer) end
  camera_detach(main_camera, floor_layer)

  layer_render(floor_layer)
  layer_draw(floor_layer)

  camera_attach(main_camera, game_layer)
  p:draw(game_layer)
  for _, sk in ipairs(seekers)     do sk:draw(game_layer) end
  for _, pr in ipairs(projectiles) do pr:draw(game_layer) end
  for _, a  in ipairs(areas)       do a:draw(game_layer)  end
  for _, b  in ipairs(beams)       do b:draw(game_layer)  end
  for _, f  in ipairs(fxs)         do f:draw(game_layer)  end
  camera_detach(main_camera, game_layer)

  layer_render(game_layer)
  layer_draw(game_layer)

With:

function draw()
  -- Floor: just the bg fill. Drawn outside camera_attach so it doesn't
  -- shake with the player when the camera spring kicks.
  layer_rectangle(floor_layer, 0, 0, width, height, bg())
  layer_render(floor_layer)
  layer_draw(floor_layer)

  -- Walls on their own layer. Dim slate fill (60,60,70 default) reads
  -- cleanly underneath the bright attack effects on the layers above.
  camera_attach(main_camera, wall_layer)
  for _, w in ipairs(walls) do w:draw(wall_layer) end
  camera_detach(main_camera, wall_layer)
  layer_render(wall_layer)
  layer_draw(wall_layer)

  -- Entities and attack carriers. Player + seekers first so projectiles,
  -- areas, and beams draw above them.
  camera_attach(main_camera, game_layer)
  p:draw(game_layer)
  for _, sk in ipairs(seekers)     do sk:draw(game_layer) end
  for _, pr in ipairs(projectiles) do pr:draw(game_layer) end
  for _, a  in ipairs(areas)       do a:draw(game_layer)  end
  for _, b  in ipairs(beams)       do b:draw(game_layer)  end
  camera_detach(main_camera, game_layer)
  layer_render(game_layer)
  layer_draw(game_layer)

  -- Visual effects on top: hit_circles, particles, hit_effect sprite
  -- bursts. Anything spawned via spawn_hit_circle / spawn_particle /
  -- spawn_hit_effect lands here, so impact FX always read above the
  -- entities and carriers that spawned them — including the beam-tip
  -- hit_circle, which is what motivated the split.
  camera_attach(main_camera, effects_layer)
  for _, f in ipairs(fxs) do f:draw(effects_layer) end
  camera_detach(main_camera, effects_layer)
  layer_render(effects_layer)
  layer_draw(effects_layer)

The F2 debug overlay block below it stays as-is (debug_layer unchanged).

Notes

• No code changes outside main.lua. Each FX / wall draws via :draw(layer) taking the layer as an arg; we just pass the new layer.
• Edition shader works per-layer, so wall_layer and effects_layer each track their own u_edition uniform independently — wall and FX shimmer still works.
• 5 FBOs at 480×270 ≈ 2.5 MB total — negligible.

Apply?

Go ahead.

The file E:\a327ex\attack-template\main.lua has been updated successfully. (file state is current in your context — no need to Read it back)

The file E:\a327ex\attack-template\main.lua has been updated successfully. (file state is current in your context — no need to Read it back)

main.lua: ok

Parses clean.

Test:

1. ./run.bat — visually everything should look the same except the beam-tip hit_circle should now clearly sit above the dashed beam line.
2. Particles flying around from any source (projectile muzzle, area, beam tip, seeker death/spawn) should also read above attacks now.
3. F2 debug overlay still draws on top of everything when toggled.

Hit circle is still not flashing white at the start of its life on the end of the beam.

My bad — I missed the direction inversion two turns ago. The hit_circle is still configured as start_color = pc → change_to text, which is the original (and wrong) direction. The layer split solved the depth issue but I never actually flipped the color direction.

Diff:

  -- Tip impact FX: hit_circle flashes white at full size on impact, then
  -- bleeds to the edition color at 30 % of its 0.2 s shrink — reads as
  -- "bright impact flash → tinted aftermath as it dissipates." Particles
  -- spray radially outward. Fires unconditionally whether the beam hit
  -- a wall or aired-out at max range; the tip is "where this beam stopped."
  local pc = edition_base_color(self.edition) or self.color
  spawn_hit_circle(self.end_x, self.end_y, {radius = 7, duration = 0.2}):change_color(0.3, pc)

Two changes from the current code:

• Drop color = pc from the opts table → hit_circle starts at text (white) by default
• change_color(0.3, pc) instead of change_color(0.3, text) → swaps to edition color at fraction 0.3

So: full-size white disc on impact (~0.06s) → bleeds to edition color while shrinking to 0 (~0.14s). Matches projectile's pattern but with a shorter "flash" phase since you explicitly said flash.

Apply?

Yes.

The file E:\a327ex\attack-template\beam.lua has been updated successfully. (file state is current in your context — no need to Read it back)

beam.lua: ok

Test: middle-click — the tip should now read as a bright white pop on impact, then bleed to the player's edition color as it shrinks out.

Perfect. Now we want to port over the homing modifier only. This messes with the fundamental structure of both instant and persistent lines so we want to have that generalized. Just give me a setting to turn homing on, as well as different homing values, and then do the warping like Orblike v1 does it.

Let me look at v1's build_homing_path to port it faithfully.

10748    -- dt: delta time for lerp
10749   -- Returns: display_path (the smoothed path), arc_dir (may be created if nil)
10750   function build_homing_path(args, stored, dt)
10751     local step_size = 3
10752     local homing_turn_rate = 0.03
10753     local ideal = {{x = args.x, y = args.y}}
10754     local path_r = args.r
10755     local px, py = args.x, args.y
10756     local traveled = 0
10757     local arc_dir = args.arc_dir or an.random:choice({-1, 1})
10758   
10759     while traveled < args.max_length do
10760       if args.homing and not args.returning_arc then
10761         local proximity = 40
10762         local closest, closest_d = nil, math.huge
10763         if enemy_spatial_hash then
10764           local cs = enemy_spatial_hash.cell_size
10765           local cells = enemy_spatial_hash.cells
10766           local cx0 = math.floor((px - proximity)/cs)
10767           local cy0 = math.floor((py - proximity)/cs)
10768           local cx1 = math.floor((px + proximity)/cs)
10769           local cy1 = math.floor((py + proximity)/cs)
10770           for cx = cx0, cx1 do
10771             for cy = cy0, cy1 do
10772               local key = cx*73856093 + cy*19349663
10773               local cell = cells[key]
10774               if cell then
10775                 for i = 1, #cell do
10776                   local e = cell[i]
10777                   if not e.dead then
... [70 more lines]

Let me verify math.clamp exists in this project's framework.

Found 3 files
attack-template\stats.lua
attack-template\anchor\camera.lua
attack-template\anchor\math.lua

math.clamp confirmed. Here's the design + full new beam.lua for review.

What's changing

The beam goes from a single straight segment (self.x, self.y → self.end_x, self.end_y) to a polyline (self.path = {{x, y}, ...}). All downstream pipeline (wall clip, damage, dash drawing) walks the path. For non-homing, the path is just 2 points and behaves identically to today. For homing, v1's build_homing_path algorithm generates many points by walking forward 3 units at a time, bending the heading toward the nearest enemy within 40 units (capped at turn_rate * step_size rad/step).

New API

spawn_beam(caster, {
  ...existing opts...
  homing,            -- bool, default false
  homing_turn_rate,  -- rad/step, default 0.03 (v1 default)
  homing_proximity,  -- enemy scan radius per step, default 40 (v1 default)
})

Demo controls

• J — toggle homing on/off (default off)
• M — cycle homing strength: weak (0.015) → normal (0.03) → strong (0.06). Default normal. Only takes effect when homing is on.

Full new beam.lua

--[[
  beam.lua — line / beam attack carrier (instant mode, minimal v1 port).

  Internally the beam is a POLYLINE — list of {x,y} points walked left-
  to-right. For a non-homing beam this is just 2 points (muzzle and
  endpoint). For a homing beam, v1's build_homing_path algorithm walks
  forward 3 units at a time, bending the heading toward the nearest
  enemy within `homing_proximity`. The same downstream pipeline (wall
  clip, damage, dash draw) handles both cases.

  Scope of this first pass:
    • Straight or homing path from caster's muzzle. Wall raycast clips
      per-segment so a curving beam stops correctly on the first wall.
    • Single damage pass at fire time. AABB cull via query_entities_box
      around the path's bounding box, then per-enemy per-segment
      perpendicular distance check (v1 line 3957-4001 algorithm).
    • Visual: v1 railgun_flash — dashed line walked along the path,
      grouped into clumps of 2-4 whose ends tween toward each clump's
      midpoint with staggered delays over `duration`.
    • Tip impact FX (white→edition-color hit_circle + 2 radial particles)
      at the path's last point, wherever the curve actually ends.
    • Caster juice: directional shake, recoil 'shoot' spring, 0.15s
      flash, muzzle hit_circle + 2 forward cone particles.

  Persistent mode (continuous channeled beam with drone + tick damage +
  per-frame path re-build with lerp smoothing) is the next iteration.

  Caller API (mirrors spawn_projectile):
    spawn_beam(caster, {
      aim_r,             -- optional, default: caster → main_camera.mouse
      spawn_offset,      -- caster→muzzle offset, default 8
      length,            -- default 150 (v1 beam_length)
      width,             -- default 2 (v1 beam_width)
      damage,            -- default 2
      duration,          -- visual lifetime, default 0.25
      color,             -- default red
      edition,           -- default caster.edition
      fire_sounds,       -- {{sound, vol}, ...}; default silent
      homing,            -- bool, default false
      homing_turn_rate,  -- rad/step, default 0.03 (v1 default)
      homing_proximity,  -- enemy scan radius per step, default 40
    })
]]


beams = {}


-- v1 build_homing_path port (line 10750). Walks forward `step_size` units
-- at a time, bending `path_r` toward the nearest enemy within `proximity`
-- by up to `turn_rate*step_size` rad per step. Returns list of {x,y}.
-- Brute-force enemy scan via query_entities_circle (no spatial hash in
-- attack-template; with O(5) enemies this is fine).
local function build_homing_path(args)
  local step_size = 3
  local turn_rate = args.turn_rate or 0.03
  local proximity = args.proximity or 40
  local length    = args.length
  local path = {{x = args.x, y = args.y}}
  local path_r = args.r
  local px, py = args.x, args.y
  local traveled = 0
  while traveled < length do
    local closest, closest_d = nil, math.huge
    local nearby = query_entities_circle(px, py, proximity, {'enemy'})
    for _, e in ipairs(nearby or {}) do
      if not e._dead then
        local d = math.length(e.x - px, e.y - py)
        if d > 1 and d < closest_d then
          closest, closest_d = e, d
        end
      end
    end
    if closest then
      local target_r = math.atan(closest.y - py, closest.x - px)
      local diff = math.atan(math.sin(target_r - path_r), math.cos(target_r - path_r))
      path_r = path_r + math.clamp(diff, -turn_rate*step_size, turn_rate*step_size)
    end
    px = px + step_size*math.cos(path_r)
    py = py + step_size*math.sin(path_r)
    traveled = traveled + step_size
    path[#path + 1] = {x = px, y = py}
  end
  return path
end


beam = class()


function beam:new(x, y, args)
  args = args or {}
  self.x = x                       -- muzzle = path[1]
  self.y = y
  self.r        = args.r or 0
  self.length   = args.length or 150
  self.width    = args.width or 2
  self.damage   = args.damage or 2
  self.duration = args.duration or 0.25
  self.color    = args.color and color_clone(args.color) or color_clone(red)
  self.edition  = args.edition or 0

  -- Build the polyline. Non-homing = 2 points; homing = many points
  -- from v1's bend-toward-nearest-enemy walk. Either way the rest of
  -- the pipeline treats `self.path` as the source of truth.
  if args.homing then
    self.path = build_homing_path({
      x = self.x, y = self.y, r = self.r, length = self.length,
      turn_rate = args.homing_turn_rate,
      proximity = args.homing_proximity,
    })
  else
    local cos_r, sin_r = math.cos(self.r), math.sin(self.r)
    self.path = {
      {x = self.x, y = self.y},
      {x = self.x + self.length*cos_r, y = self.y + self.length*sin_r},
    }
  end

  -- Per-segment wall clip (v1 line 3820-3828). Walk segments; on first
  -- wall hit, snap the next point to the hit position and drop any
  -- subsequent points so a curving beam terminates correctly.
  for i = 1, #self.path - 1 do
    local hit = raycast_entity(self.path[i].x, self.path[i].y,
                               self.path[i+1].x, self.path[i+1].y, {'wall'})
    if hit then
      self.path[i+1] = {x = hit.point_x, y = hit.point_y}
      for j = #self.path, i + 2, -1 do self.path[j] = nil end
      break
    end
  end

  -- Cumulative distance per point for path_point() lookup.
  self.path_dists = {0}
  for i = 2, #self.path do
    local dx = self.path[i].x - self.path[i-1].x
    local dy = self.path[i].y - self.path[i-1].y
    self.path_dists[i] = self.path_dists[i-1] + math.length(dx, dy)
  end
  self.length = self.path_dists[#self.path_dists]

  make_entity(self)
  self.timer = timer_new()

  -- Tip impact FX at the actual endpoint (which is wherever the curve
  -- ended — wall hit or full path length). White-flash → edition-color
  -- hit_circle, radial particles. See file-top notes for the rationale.
  local tip = self.path[#self.path]
  local pc = edition_base_color(self.edition) or self.color
  spawn_hit_circle(tip.x, tip.y, {radius = 7, duration = 0.2}):change_color(0.3, pc)
  for i = 1, 2 do
    spawn_particle(tip.x, tip.y, {
      angle    = random_float(0, 2*math.pi),
      velocity = random_float(40, 200),
      duration = random_float(0.3, 0.6),
      w        = random_choice({6, 8}),
    }):change_color(0.5, pc)
  end

  self:apply_damage()
  self:build_clumps()
  for _, clump in ipairs(self.clumps) do
    local mid = (clump.clump_start + clump.clump_end)/2
    local delay = random_float(0, self.duration*0.4)
    local tween_dur = self.duration - delay
    timer_after(self.timer, delay, function()
      timer_tween(self.timer, tween_dur, clump, {visible_start = mid, visible_end = mid}, math.cubic_in)
    end)
  end
  timer_after(self.timer, self.duration + 0.05, function() entity_kill(self) end)
end


-- Linear interpolation along the polyline at cumulative distance `d`.
-- Mirrors v1's local path_point() at line 3871-3883.
function beam:path_point(d)
  local path, dists = self.path, self.path_dists
  if d <= 0 then return path[1].x, path[1].y end
  if d >= self.length then return path[#path].x, path[#path].y end
  for i = 2, #path do
    if dists[i] >= d then
      local seg_len = dists[i] - dists[i-1]
      local t = (d - dists[i-1])/seg_len
      return path[i-1].x + t*(path[i].x - path[i-1].x),
             path[i-1].y + t*(path[i].y - path[i-1].y)
    end
  end
  return path[#path].x, path[#path].y
end


function beam:apply_damage()
  if #self.path < 2 then return end
  local hit_h = self.width*3              -- v1 perp threshold (line 3982)
  local min_x, min_y = math.huge, math.huge
  local max_x, max_y = -math.huge, -math.huge
  for _, pt in ipairs(self.path) do
    if pt.x < min_x then min_x = pt.x end
    if pt.x > max_x then max_x = pt.x end
    if pt.y < min_y then min_y = pt.y end
    if pt.y > max_y then max_y = pt.y end
  end
  min_x = min_x - hit_h; max_x = max_x + hit_h
  min_y = min_y - hit_h; max_y = max_y + hit_h
  local cx, cy = (min_x + max_x)/2, (min_y + max_y)/2
  local w,  h  = max_x - min_x, max_y - min_y
  local enemies = query_entities_box(cx, cy, w, h, 0, {'enemy'})
  local pc = edition_base_color(self.edition) or self.color
  for _, e in ipairs(enemies or {}) do
    if e.hit and not e._dead then
      local hit = false
      for i = 1, #self.path - 1 do
        local ax, ay = self.path[i].x,   self.path[i].y
        local bx, by = self.path[i+1].x, self.path[i+1].y
        local abx, aby = bx - ax, by - ay
        local seg_len_sq = abx*abx + aby*aby
        if seg_len_sq > 0 then
          local t = math.clamp(((e.x - ax)*abx + (e.y - ay)*aby)/seg_len_sq, 0, 1)
          local px, py = ax + t*abx, ay + t*aby
          if math.length(e.x - px, e.y - py) < hit_h then
            hit = true
            break
          end
        end
      end
      if hit then
        e:hit(self.damage)
        spawn_hit_effect(e.x, e.y)
        for i = 1, random_int(1, 2) do
          spawn_particle(e.x, e.y, {
            velocity = random_float(30, 80),
            duration = random_float(0.1, 0.2),
            w        = 4,
          }):change_color(0.5, pc)
        end
      end
    end
  end
end


function beam:build_clumps()
  local dash_len, gap_len = 5, 6
  local stride = dash_len + gap_len
  local all_segs = {}
  local d = 0
  while d < self.length do
    local seg_end = math.min(d + dash_len, self.length)
    if seg_end - d > 0.5 then
      all_segs[#all_segs + 1] = {start_d = d, end_d = seg_end}
    end
    d = d + stride
  end
  self.clumps = {}
  local i = 1
  while i <= #all_segs do
    local clump_size = math.min(random_int(2, 4), #all_segs - i + 1)
    local clump_start = all_segs[i].start_d
    local clump_end   = all_segs[i + clump_size - 1].end_d
    local segs = {}
    for j = i, i + clump_size - 1 do
      segs[#segs + 1] = {start_d = all_segs[j].start_d, end_d = all_segs[j].end_d}
    end
    self.clumps[#self.clumps + 1] = {
      clump_start   = clump_start,
      clump_end     = clump_end,
      visible_start = clump_start,
      visible_end   = clump_end,
      segs          = segs,
    }
    i = i + clump_size
  end
end


function beam:update(dt)
  timer_update(self.timer, dt)
end


function beam:destroy() end


function beam:draw(layer)
  set_edition(layer, self.edition)
  local c = self.color()
  for _, clump in ipairs(self.clumps) do
    if clump.visible_end - clump.visible_start > 0.3 then
      for _, seg in ipairs(clump.segs) do
        local sd = math.max(seg.start_d, clump.visible_start)
        local ed = math.min(seg.end_d, clump.visible_end)
        if ed - sd > 0.3 then
          local sx, sy = self:path_point(sd)
          local ex, ey = self:path_point(ed)
          layer_line(layer, sx, sy, ex, ey, 2, c)
        end
      end
    end
  end
  set_edition(layer, 0)
end


function spawn_beam(caster, opts)
  opts = opts or {}
  local aim_r = opts.aim_r or math.angle_to_point(caster.x, caster.y,
                                                  main_camera.mouse.x,
                                                  main_camera.mouse.y)
  local off   = opts.spawn_offset or 8
  local sx    = caster.x + off*math.cos(aim_r)
  local sy    = caster.y + off*math.sin(aim_r)
  local color = opts.color or red

  local b = beam(sx, sy, {
    r        = aim_r,
    length   = opts.length,
    width    = opts.width,
    damage   = opts.damage,
    duration = opts.duration,
    color    = color,
    edition  = opts.edition or caster.edition,
    homing            = opts.homing,
    homing_turn_rate  = opts.homing_turn_rate,
    homing_proximity  = opts.homing_proximity,
  })
  beams[#beams + 1] = b

  shake_push(main_camera.shake, aim_r, 3)
  if caster.spring then spring_pull(caster.spring, 'shoot', 0.25) end
  if caster.timer then
    caster.flashing = true
    timer_after(caster.timer, 0.15, 'shoot_flash', function() caster.flashing = false end)
  end

  local pc = edition_base_color(caster.edition) or color
  spawn_hit_circle(sx, sy, {radius = 7, duration = 0.2})
  for i = 1, 2 do
    spawn_particle(sx, sy, {
      angle    = aim_r + random_float(-math.pi/4, math.pi/4),
      velocity = random_float(40, 200),
      duration = random_float(0.3, 0.6),
      w        = random_choice({6, 8}),
    }):change_color(0.5, pc)
  end

  if opts.fire_sounds then
    for _, fs in ipairs(opts.fire_sounds) do
      sfx(fs.sound, fs.vol)
    end
  end

  return b
end

main.lua diffs

a. Binds (with the other area cycle binds): lua bind('toggle_area_persistent', 'key:n') bind('toggle_beam_homing', 'key:j') -- ← NEW bind('cycle_beam_homing', 'key:m') -- ← NEW

b. State (after current_area_persistent): lua current_area_persistent = false current_beam_homing = false current_beam_homing_turn_rate = 0.03 beam_homing_cycle = { {name = 'weak', turn_rate = 0.015}, {name = 'normal', turn_rate = 0.03}, {name = 'strong', turn_rate = 0.06}, } beam_homing_index = 2 -- default = 'normal'

c. Handlers (with the other toggles): lua if is_pressed('toggle_beam_homing') then current_beam_homing = not current_beam_homing print('beam_homing: ' .. (current_beam_homing and 'on' or 'off') .. ' (' .. beam_homing_cycle[beam_homing_index].name .. ', turn_rate=' .. tostring(beam_homing_cycle[beam_homing_index].turn_rate) .. ')') end if is_pressed('cycle_beam_homing') then beam_homing_index = (beam_homing_index % #beam_homing_cycle) + 1 current_beam_homing_turn_rate = beam_homing_cycle[beam_homing_index].turn_rate print('beam_homing_strength: ' .. beam_homing_cycle[beam_homing_index].name .. ' (turn_rate=' .. tostring(current_beam_homing_turn_rate) .. ')' .. (current_beam_homing and '' or ' [homing off — press J to enable]')) end

d. Update fire_beam handler: lua if is_pressed('fire_beam') and not p._dead then spawn_beam(p, { damage = 2, homing = current_beam_homing, homing_turn_rate = current_beam_homing_turn_rate, }) end

Notes

• Path step size and proximity stay hardcoded at v1's values (3, 40) inside build_homing_path — only turn_rate and proximity are exposed through opts. Step size isn't really a tunable knob (it controls path resolution, not behavior).
• AABB damage cull: I'm using query_entities_box with rotation=0 (axis-aligned) since the path can curve in any direction. With ≤ 5 enemies the cull is theatrical, but matches v1's structure.
• Brute-force enemy scan in build_homing_path via query_entities_circle per step (50 steps × ~5 enemies). At ~100 calls/sec of beam firing, negligible. For persistent beams later, we'll either add a spatial hash or accept the cost.
• The cycle_beam_homing print includes a "[homing off — press J to enable]" hint when you cycle strength while homing is disabled — found that helpful when toggling around.

Test plan

1. ./run.bat. Middle-click — beam should fire straight as before.
2. Press J — console prints beam_homing: on (normal, turn_rate=0.03).
3. Middle-click toward a seeker — beam path should visibly bend toward it.
4. Middle-click into open space — straight (no enemies within 40 unit of any step).
5. Press M to cycle strength → click again. Weak should curve subtly; strong should curve aggressively (possibly looping around enemies).
6. Aim a homing shot at the central wall — path bends toward enemies but is clipped at the wall when the curve crosses it.
7. F2 to confirm no collider for beams (still query-only).

Apply?

Go ahead.

The file E:\a327ex\attack-template\beam.lua has been updated successfully. (file state is current in your context — no need to Read it back)

Now the four main.lua edits.

The file E:\a327ex\attack-template\main.lua has been updated successfully. (file state is current in your context — no need to Read it back)

The file E:\a327ex\attack-template\main.lua has been updated successfully. (file state is current in your context — no need to Read it back)

The file E:\a327ex\attack-template\main.lua has been updated successfully. (file state is current in your context — no need to Read it back)

The file E:\a327ex\attack-template\main.lua has been updated successfully. (file state is current in your context — no need to Read it back)

beam.lua: ok
main.lua: ok

Both parse clean. Summary:

• beam.lua rewritten — beam is now internally a polyline. Non-homing path = 2 points (start, end). Homing path = many points generated by v1's build_homing_path walk (3-unit steps, bending toward nearest enemy within 40 units, capped at turn_rate * step_size rad/step). Per-segment wall clip, AABB damage cull + per-segment perp distance check, dashes positioned via beam:path_point(d) lookup on cumulative distances.
• main.lua — J toggle, M cycle (weak 0.015 / normal 0.03 / strong 0.06), state forwarded into spawn_beam.

Test plan

1. ./run.bat. Middle-click — straight beam fires as before (homing off by default).
2. J — beam_homing: on (normal, turn_rate=0.03). Middle-click toward a seeker cluster — beam should visibly curve into them.
3. Middle-click into open space — straight (no enemies in scan radius along the path).
4. M to cycle strength → fire again. Weak should curve gently; strong should curve aggressively (can wrap around an isolated enemy).
5. Aim a homing shot toward the central wall — path should curve toward enemies but truncate at the wall on the first segment that crosses it.
6. With multiple enemies on the screen, the curve should bend toward the closest one at each step (not just the first encountered).
7. F2 still shows no collider for beams.

Tunables if it feels off:

• homing_turn_rate tiers (beam_homing_cycle in main.lua)
• homing_proximity (currently hardcoded to v1's 40 — exposed as opt if you want to test other values)
• step_size inside build_homing_path (default 3 — smaller = smoother curve, more cost)

Have seekers be unmoving and spread in a slightly jagged line across the screen, make the beam length very long, give me keys, a set to change turn rate, a set to change homing proximity, a set to change step size, draw the current values to the screen, beam should deal 0 damage.

Let me look at seeker.lua's update structure to plan the freeze.

1    --[[
2     seeker.lua — basic chase-the-player enemy.
3   
4     Faithful port of v1's seeker (~main.lua 9203-9514). Same silhouette
5     (14×6 rounded rect), same hp pool, same speed range, same steering
6     recipe (seek + wander + separate combined inside max_force=200),
7     same spawn/hit/death FX, same sounds. The bytepath-era pack /
8     rarity / modifiers system (yellow/blue specials, slow_aura,
9     explode_on_death) is intentionally NOT ported here — Invoker's
10    loot/modifier layer is going to live higher up the stack; the
11    seeker itself stays mechanical.
12  
13    Differences from v1 that aren't cosmetic:
14      • Procedural Anchor 2 patterns: plain field timer/spring/collider,
15        explicit update of each sub-module, `cached_enemies` is replaced
16        by iterating the seekers[] array for steering_separate.
17      • `cyclone_spin` death-spin parameter dropped (no cyclone ability
18        yet — spin defaults to 0, which matches v1's effective behavior
19        when nothing has tagged the seeker with cyclone). Re-add when
20        Cyclone lands.
21      • `damaged_by_area` tick-rate guard dropped — fireball is the only
22        area right now and it's instant, so re-hits per cast can't happen.
23        Bring back the guard when duration zones land.
24      • Push knockback timer-name bug fixed. v1 reuses the name 'push'
25        for both the 0.15s flash-off and the 0.5s pushed-state-off
26        timers, so the second registration cancels the first and the
27        seeker stays white-flashed forever after a push. We use
28        distinct names ('push_flash' / 'push_end') so both fire.
29  ]]
30  
... [340 more lines]

Let me check sound_tuner.lua for the layer_text signature it uses.

40:fonts.tune = font_register('monogram', 'assets/monogram.ttf', 12)
146:    layer_text(tune_layer, string.format('F3 TUNE MODE  [%d/%d]', tune_index, #tune_list),
147:               fonts.tune, x, y, text())
149:    layer_text(tune_layer, cur.path, fonts.tune, x, y, fg_color())
151:    layer_text(tune_layer, string.format('bits:   %2d   ([/])', bits),   fonts.tune, x, y, text())
153:    layer_text(tune_layer, string.format('sr_div: %2d   (-/=)', sr_div), fonts.tune, x, y, text())
155:    layer_text(tune_layer, 'up/down: switch sound',        fonts.tune, x, y, text())
157:    layer_text(tune_layer, 'space: replay',                fonts.tune, x, y, text())
159:    layer_text(tune_layer, 's: save sound_tuning.lua',     fonts.tune, x, y, text())

Good — layer_text(layer, msg, font, x, y, color()) confirmed. Here's the plan — single proposal across seeker.lua, beam.lua, and main.lua.

Decisions

• Tuning keys: 1/2 turn_rate ±0.005, 3/4 proximity ±5, 5/6 step_size ±1. J stays as the on/off toggle. M (preset cycle) gets removed — superseded.
• Increments sized to give ~6 presses to move turn_rate from default (0.03) to weak (0.015) or strong (0.06); proximity coarser at ±5 over a 10–200 range; step_size whole units with a floor of 1.
• Beam length: 600 (well past the 480 screen width — gives the homing curve room to wrap).
• Damage: 0. Seeker :hit(0) still fires (HP-bar visibility, no death). I'm fine with the per-hit sound — it's a useful "this seeker got hit" cue. Tell me if you want it silenced too.
• HUD: drawn on debug_layer (already has no camera/edition), always-on (not gated by F2). Reuses fonts.tune. Top-left corner.
• Seekers: new frozen flag in seeker.lua that bypasses steering and zeros velocity. Spawned in a jagged line: x = (i - 0.5) * width / count with y = height/2 + random(-20, 20). 10 seekers.

1. seeker.lua — add frozen short-circuit

In seeker:update, insert right after the self.x, self.y = self.collider:get_position() line:

  self.x, self.y = self.collider:get_position()

  -- Debug freeze: bypass steering, lock velocity. Used by the homing-
  -- tuning playground in main.lua to keep the test field stable.
  if self.frozen then
    self.collider:set_velocity(0, 0)
    self.collider:set_angle(self.r)
    self.collider:set_angular_velocity(0)
    return
  end

  if not self.pushed then

2. beam.lua — expose step_size

Two edits.

a. build_homing_path reads step_size from args: lua local function build_homing_path(args) local step_size = args.step_size or 3 local turn_rate = args.turn_rate or 0.03 local proximity = args.proximity or 40

b. beam:new forwards args.homing_step_size: lua if args.homing then self.path = build_homing_path({ x = self.x, y = self.y, r = self.r, length = self.length, turn_rate = args.homing_turn_rate, proximity = args.homing_proximity, step_size = args.homing_step_size, })

c. spawn_beam forwards opts.homing_step_size: lua homing = opts.homing, homing_turn_rate = opts.homing_turn_rate, homing_proximity = opts.homing_proximity, homing_step_size = opts.homing_step_size,

3. main.lua — substantial scene rework

a. Binds — replace the cycle_beam_homing block: lua bind('toggle_beam_homing', 'key:j') bind('beam_turn_rate_down', 'key:1') bind('beam_turn_rate_up', 'key:2') bind('beam_proximity_down', 'key:3') bind('beam_proximity_up', 'key:4') bind('beam_step_size_down', 'key:5') bind('beam_step_size_up', 'key:6') (cycle_beam_homing / key:m is removed.)

b. State — replace the cycle table: lua -- Beam homing tuning state. J toggles on/off; 1/2 tune turn_rate, -- 3/4 tune proximity, 5/6 tune step_size. Values draw to the HUD -- on debug_layer every frame. current_beam_homing = false current_beam_homing_turn_rate = 0.03 current_beam_homing_proximity = 40 current_beam_homing_step_size = 3

c. Handlers — replace cycle_beam_homing handler with six pair-handlers: lua if is_pressed('beam_turn_rate_down') then current_beam_homing_turn_rate = math.max(0, current_beam_homing_turn_rate - 0.005) end if is_pressed('beam_turn_rate_up') then current_beam_homing_turn_rate = current_beam_homing_turn_rate + 0.005 end if is_pressed('beam_proximity_down') then current_beam_homing_proximity = math.max(0, current_beam_homing_proximity - 5) end if is_pressed('beam_proximity_up') then current_beam_homing_proximity = current_beam_homing_proximity + 5 end if is_pressed('beam_step_size_down') then current_beam_homing_step_size = math.max(1, current_beam_homing_step_size - 1) end if is_pressed('beam_step_size_up') then current_beam_homing_step_size = current_beam_homing_step_size + 1 end No print — values draw to HUD continuously, so console spam isn't useful.

d. Toggle handler — keep toggle_beam_homing as-is but trim the print since HUD shows state: lua if is_pressed('toggle_beam_homing') then current_beam_homing = not current_beam_homing end

e. Scene — replace the ring of 5 seekers with a jagged line of 10 frozen ones: lua -- Tuning playground: jagged line of FROZEN seekers across the screen. -- 10 evenly spaced along x, ±20 y jitter from center. seeker.frozen -- bypasses steering so the field stays put while you tune beam-homing -- knobs against a known geometry. local seeker_count = 10 for i = 1, seeker_count do local sx = (i - 0.5)*width/seeker_count local sy = height/2 + random_float(-20, 20) local sk = spawn_seeker(sx, sy) sk.frozen = true end

f. Fire handler — damage 0, length 600, all three homing knobs forwarded: lua if is_pressed('fire_beam') and not p._dead then spawn_beam(p, { damage = 0, length = 600, homing = current_beam_homing, homing_turn_rate = current_beam_homing_turn_rate, homing_proximity = current_beam_homing_proximity, homing_step_size = current_beam_homing_step_size, }) end

g. HUD draw — restructure the debug_layer block. Currently the whole block is gated by if debug_draw_enabled then ... layer_render ... end. Pull the render/draw outside the gate and add HUD text above the gate:

  -- ===== HUD (always-on) + F2 COLLIDER OVERLAY =====
  -- HUD: beam-homing tuning state. Top-left corner; updated every
  -- frame so the values reflect tuning-key state instantly.
  local hud_x, hud_y = 6, 6
  layer_text(debug_layer, 'homing: ' .. (current_beam_homing and 'ON' or 'OFF'),
             fonts.tune, hud_x, hud_y, text())
  layer_text(debug_layer, string.format('turn_rate: %.4f  [1/2]', current_beam_homing_turn_rate),
             fonts.tune, hud_x, hud_y + 12, text())
  layer_text(debug_layer, string.format('proximity: %d  [3/4]', current_beam_homing_proximity),
             fonts.tune, hud_x, hud_y + 24, text())
  layer_text(debug_layer, string.format('step_size: %d  [5/6]', current_beam_homing_step_size),
             fonts.tune, hud_x, hud_y + 36, text())

  -- F2 collider overlay. Same structure as before — just lives inside
  -- the now-always-rendered debug_layer.
  if debug_draw_enabled then
    local solid_c  = lime()
    local sensor_c = yellow()
    local function draw_collider_shapes(e)
      ...
    end
    camera_attach(main_camera, debug_layer)
    draw_collider_shapes(p)
    for _, sk in ipairs(seekers)     do draw_collider_shapes(sk) end
    for _, w  in ipairs(walls)       do draw_collider_shapes(w)  end
    for _, pr in ipairs(projectiles) do draw_collider_shapes(pr) end
    camera_detach(main_camera, debug_layer)
  end

  layer_render(debug_layer)
  layer_draw(debug_layer)

Notes / sanity

• Frozen seekers can still take damage and feel hits (HP-bar shows, flash, spring) — they just don't move. With damage=0 in the demo, hits register visually but no deaths.
• A homing beam can theoretically curve back into the player; with damage=0 that doesn't matter, but worth knowing.
• HUD text on debug_layer means it ignores camera shake — sits at exact screen-space (6, 6) regardless. That's what you want for a tuning readout.
• HUD updates with no key release needed — is_pressed triggers per press, values stick across frames, draw runs every frame.

Apply?

Go ahead.

The file E:\a327ex\attack-template\seeker.lua has been updated successfully. (file state is current in your context — no need to Read it back)

Now beam.lua — three small edits.

The file E:\a327ex\attack-template\beam.lua has been updated successfully. (file state is current in your context — no need to Read it back)

The file E:\a327ex\attack-template\beam.lua has been updated successfully. (file state is current in your context — no need to Read it back)

The file E:\a327ex\attack-template\beam.lua has been updated successfully. (file state is current in your context — no need to Read it back)

Now main.lua — six edits.

The file E:\a327ex\attack-template\main.lua has been updated successfully. (file state is current in your context — no need to Read it back)

The file E:\a327ex\attack-template\main.lua has been updated successfully. (file state is current in your context — no need to Read it back)

The file E:\a327ex\attack-template\main.lua has been updated successfully. (file state is current in your context — no need to Read it back)

The file E:\a327ex\attack-template\main.lua has been updated successfully. (file state is current in your context — no need to Read it back)

The file E:\a327ex\attack-template\main.lua has been updated successfully. (file state is current in your context — no need to Read it back)

Now the HUD restructure. Let me look at the current debug block to make sure my edit matches.

509:  -- ===== F2 COLLIDER DEBUG OVERLAY =====
510-  -- Walks each entity's collider, calls get_shapes_geometry (engine returns
511-  -- world-space shape data), and strokes the outline on debug_layer. Each
512-  -- chain shape comes back as a sequence of segments so closed-loop walls
513-  -- get drawn edge-by-edge automatically. Sensor shapes get a distinct
514-  -- color so projectile hitboxes (when we port projectiles) read as
515-  -- yellow against the lime solid shapes.
516-  if debug_draw_enabled then
517-    local solid_c  = lime()
518-    local sensor_c = yellow()
519-    local function draw_collider_shapes(e)
520-      if not e or not e.collider then return end
521-      local shapes = e.collider:get_shapes_geometry()
522-      for _, s in ipairs(shapes) do
523-        local c = s.sensor and sensor_c or solid_c
524-        if s.type == 'circle' then
525-          layer_circle_line(debug_layer, s.x, s.y, s.radius, c, 1)
526-        elseif s.type == 'polygon' then
527-          layer_polygon_line(debug_layer, s.vertices, c, 1)
528-        elseif s.type == 'segment' then
529-          layer_line(debug_layer, s.x1, s.y1, s.x2, s.y2, 1, c)
530-        elseif s.type == 'capsule' then
531-          layer_capsule_line(debug_layer, s.x1, s.y1, s.x2, s.y2, s.radius, c, 1)
532-        end
533-      end
534-    end
535-    camera_attach(main_camera, debug_layer)
536-    draw_collider_shapes(p)
537-    for _, sk in ipairs(seekers)     do draw_collider_shapes(sk) end
538-    for _, w  in ipairs(walls)       do draw_collider_shapes(w)  end
... [8 more lines]

The file E:\a327ex\attack-template\main.lua has been updated successfully. (file state is current in your context — no need to Read it back)

seeker.lua: ok
beam.lua: ok
main.lua: ok

All three parse clean.

Test plan

1. ./run.bat. Scene should show 10 seekers in a jagged line across the screen at y≈height/2, all static. Wall is still there on the right. HUD in top-left reads homing: OFF / turn_rate: 0.0300 [1/2] / proximity: 40 [3/4] / step_size: 3 [5/6].
2. Press J → HUD updates to homing: ON.
3. Middle-click left of the seeker line — beam fires very long (600 units), curving through the line of seekers. No deaths (damage=0). Hit-effect sprite bursts on whichever seekers the beam intersects.
4. Press 2 repeatedly to increase turn rate, watch HUD count up by 0.005 each press. Fire again — curve should be tighter.
5. Press 1 repeatedly to decrease; floors at 0. With turn_rate=0 the beam should fly straight even with homing on.
6. Press 4 / 3 to tune proximity. At a very low value (e.g. 5), the beam should barely react to nearby seekers; at a very high value (e.g. 100), it should reach further to bend.
7. Press 6 / 5 to tune step_size. Low (1) = smooth curve, more cost; high (10+) = chunky polyline.
8. F2 collider overlay should still toggle and overlay on top.

One important thing that's happening incorrectly now is that the way the path is built makes it so that the line can go off in its own direction depending on which enemies it finds. I think it would be better if, when you click in a certain direction, the line always maintains that general direction, hitting enemies that are near enough around that path. But it shouldn't do something it can do now, for instance, which is loop around and then bend down away from where the user clicked.

Diagnosis: each step adds to path_r independently, so enemy attraction can accumulate without bound — the path can bend past 90° from the click direction and never recover. Need to clamp the heading to stay within a cone around the original aim.

Diff to build_homing_path in beam.lua:

local function build_homing_path(args)
  local step_size = args.step_size or 3
  local turn_rate = args.turn_rate or 0.03
  local proximity = args.proximity or 40
  -- Maximum angular deviation from the initial aim direction. The path
  -- can curve to hit nearby enemies, but won't drift more than this far
  -- from where the player clicked — so a beam can never loop around or
  -- bend backward. Hard clamp applied each step. 45° default ≈ wide
  -- enough to grab nearby targets, narrow enough that the line still
  -- reads as "in the direction I aimed."
  local max_deviation = args.max_deviation or math.pi/4
  local length    = args.length
  local original_r = args.r
  local path = {{x = args.x, y = args.y}}
  local path_r = args.r
  local px, py = args.x, args.y
  local traveled = 0
  while traveled < length do
    local closest, closest_d = nil, math.huge
    local nearby = query_entities_circle(px, py, proximity, {'enemy'})
    for _, e in ipairs(nearby or {}) do
      if not e._dead then
        local d = math.length(e.x - px, e.y - py)
        if d > 1 and d < closest_d then
          closest, closest_d = e, d
        end
      end
    end
    if closest then
      local target_r = math.atan(closest.y - py, closest.x - px)
      local diff = math.atan(math.sin(target_r - path_r), math.cos(target_r - path_r))
      path_r = path_r + math.clamp(diff, -turn_rate*step_size, turn_rate*step_size)
    end
    -- Cone clamp: keep path_r within ±max_deviation of original_r so the
    -- beam can't loop or bend backward regardless of enemy placement.
    local dev = math.atan(math.sin(path_r - original_r), math.cos(path_r - original_r))
    path_r = original_r + math.clamp(dev, -max_deviation, max_deviation)
    px = px + step_size*math.cos(path_r)
    py = py + step_size*math.sin(path_r)
    traveled = traveled + step_size
    path[#path + 1] = {x = px, y = py}
  end
  return path
end

Three additions:

• original_r captured at start
• max_deviation reads from args with default π/4 (45°)
• After the enemy-bend block, compute angular diff from original and clamp to ±max_deviation

How it behaves: the path can bend freely within a 90°-wide cone around the click direction. Once it hits the cone boundary, further enemy attraction pulls path_r outside — but the clamp pulls it right back to the boundary. So the line glues along the cone edge instead of looping. If a closer enemy appears on the other side, the path can bend back across through the original direction since the clamp doesn't fight motion toward original_r.

Decisions to flag

• Hardcoded at π/4 (45°), no new tuning knob. The user's complaint is about behavior, not a parameter they wanted to dial — but I can wire it to a 7th tuning key + HUD line if you'd rather have it tunable in the playground.
• max_deviation is exposed via opts so a caller (or the demo, if you want a knob later) can override per-fire without code changes.
• Hard clamp, not soft return: simpler. Glues along the cone edge when the path wants to go further. If that "glued" look reads as artificial, the next iteration is a soft pull-back-toward-original-r per step instead of a hard clamp.

Apply?

Let's try it.

The file E:\a327ex\attack-template\beam.lua has been updated successfully. (file state is current in your context — no need to Read it back)

beam.lua: ok

Applied.

Test: aim the beam through a section of the line where the seekers spread out (or fire away from any cluster). The beam should bend toward enemies within the 90°-wide cone around your aim, but never curve past 45° off-axis — no more loops or backward bends. If the line glues conspicuously along the cone edge, we can swap the hard clamp for a soft return-to-aim.

Let's have default proximity at 200, default step size at what it is now, default turn rate 0.0250

Two trivial value tweaks across both files. Diffs:

beam.lua — build_homing_path defaults: lua local turn_rate = args.turn_rate or 0.025 local proximity = args.proximity or 200

main.lua — HUD/state initial values: lua current_beam_homing_turn_rate = 0.025 current_beam_homing_proximity = 200

Step size stays at 3 everywhere. Applying.

The file E:\a327ex\attack-template\beam.lua has been updated successfully. (file state is current in your context — no need to Read it back)

The file E:\a327ex\attack-template\main.lua has been updated successfully. (file state is current in your context — no need to Read it back)

beam.lua: ok
main.lua: ok

Applied. HUD on launch will now read turn_rate: 0.0250 / proximity: 200 / step_size: 3.

[Pasted image/png]

Perfect. However, a few small issues sometimes, like in the image. How can we prevent such things from happening? The way the current algorithm works, it doesn't matter what knob is turned, something like this will happen in one way or another.

Diagnosis from the image: your cursor was around the middle-right (aim ≈ –17° from horizontal). The closest seeker to the player was at the upper-left of the line, roughly straight up from the player — about 80° off-axis from the aim. The bend-toward-that-enemy got clamped to the cone edge (–17° – 45° = –62°), so the beam glued to the cone boundary and shot off the top-right of the screen.

Structural fix: filter candidate enemies to those inside the reachable cone from the muzzle, not just within scan proximity. The cone clamp already says "path heading must stay within ±max_deviation of original_r" — which means the path can only physically reach points inside a cone of that half-angle anchored at the muzzle. Enemies outside that cone are unreachable; bending toward them just wastes the curve on an unreachable target and glues to the cone edge (which is exactly what you saw).

Diff to build_homing_path in beam.lua:

local function build_homing_path(args)
  local step_size = args.step_size or 3
  local turn_rate = args.turn_rate or 0.025
  local proximity = args.proximity or 200
  -- Maximum angular deviation from the initial aim direction. The path
  -- can curve to hit nearby enemies, but won't drift more than this far
  -- from where the player clicked — so a beam can never loop around or
  -- bend backward. Hard clamp applied each step. 45° default ≈ wide
  -- enough to grab nearby targets, narrow enough that the line still
  -- reads as "in the direction I aimed."
  local max_deviation = args.max_deviation or math.pi/4
  local length   = args.length
  local original_r = args.r
  -- Aim-frame basis vectors for the cone filter below. fa is the forward
  -- unit vector along the original aim; rt is the perpendicular (right
  -- hand). Anchored at the muzzle and never updated — keeps the cone
  -- stable for the entire path build, so bend accumulation can't drift
  -- the cone off-axis frame by frame.
  local fa_x, fa_y = math.cos(original_r), math.sin(original_r)
  local rt_x, rt_y = -fa_y, fa_x
  local tan_max = math.tan(max_deviation)
  local origin_x, origin_y = args.x, args.y
  local path = {{x = args.x, y = args.y}}
  local path_r = args.r
  local px, py = args.x, args.y
  local traveled = 0
  while traveled < length do
    local closest, closest_d = nil, math.huge
    local nearby = query_entities_circle(px, py, proximity, {'enemy'})
    for _, e in ipairs(nearby or {}) do
      if not e._dead then
        -- Cone filter: only consider enemies inside the reachable cone
        -- anchored at the muzzle (±max_deviation half-angle around the
        -- original aim). Enemies behind the muzzle, off-axis sideways,
        -- or further off-axis than max_deviation are unreachable without
        -- violating the cone clamp below — bending toward them only
        -- pegs the path against the clamp boundary and wastes the curve.
        local rel_x, rel_y = e.x - origin_x, e.y - origin_y
        local along = rel_x*fa_x + rel_y*fa_y
        local perp  = rel_x*rt_x + rel_y*rt_y
        if along > 0 and math.abs(perp) <= along*tan_max then
          local d = math.length(e.x - px, e.y - py)
          if d > 1 and d < closest_d then
            closest, closest_d = e, d
          end
        end
      end
    end
    if closest then
      local target_r = math.atan(closest.y - py, closest.x - px)
      local diff = math.atan(math.sin(target_r - path_r), math.cos(target_r - path_r))
      path_r = path_r + math.clamp(diff, -turn_rate*step_size, turn_rate*step_size)
    end
    -- Cone clamp: keep path_r within ±max_deviation of original_r so the
    -- beam can't loop or bend backward regardless of enemy placement.
    local dev = math.atan(math.sin(path_r - original_r), math.cos(path_r - original_r))
    path_r = original_r + math.clamp(dev, -max_deviation, max_deviation)
    px = px + step_size*math.cos(path_r)
    py = py + step_size*math.sin(path_r)
    traveled = traveled + step_size
    path[#path + 1] = {x = px, y = py}
  end
  return path
end

How this fixes your case

For the image: the seeker at (~75, 360) relative to the player at (~110, 605) has relative position (–35, –245). Project onto the aim frame (aim = –17° from horizontal):

• along ≈ +40 (a little forward)
• perp ≈ –244 (way to the side)
• |perp| / along ≈ 6 — way outside tan(45°) = 1
• Rejected by the cone filter. Beam ignores it.

Meanwhile a seeker near the cursor at (~505, 440) gives along ≈ 426, perp ≈ –38, ratio ≈ 0.09 — well inside the cone. Beam bends toward it. So the beam stays within the cursor direction and hits enemies along that line, not enemies behind the player that happen to be physically close.

Notes

• The cone is anchored at the muzzle, not the current path position. Otherwise the cone would drift with the bend and amplify the same problem.
• No new tunables. The corridor-style filter is implicit — it's the cone defined by max_deviation.
• Performance: one extra dot-product per enemy per step. With ≤10 enemies and 50 steps, ~500 dot products per beam fire. Trivial.
• The cone clamp at the bottom stays exactly as before — belt and suspenders.

Apply?

Sure.

The file E:\a327ex\attack-template\beam.lua has been updated successfully. (file state is current in your context — no need to Read it back)

beam.lua: ok

Applied.

Test: aim the beam in any direction. The path should bend only toward enemies that are ahead of the muzzle within the 90°-wide cone. Enemies behind, sideways, or beyond the cone boundary get ignored — no more glue-to-cone-edge crazy bends. The line should consistently read as "in the direction I clicked" with curves toward in-cone targets.

If you want a wider/narrower reach, lowering or raising the cone half-angle is the lever (currently hardcoded at math.pi/4 = 45°). Happy to expose it as a 4th tuning knob if you want to play with it.

Still doesn't quite work. Let's try a different approach. What's the simplest version of the path building algorithm you can build? Literally the simplest that does the job of building a homing path, without any complexities or assumptions about how it should work other than what it needs to get the job done.

Stripped to the bones:

local function build_homing_path(args)
  local step_size = args.step_size or 3
  local turn_rate = args.turn_rate or 0.025
  local proximity = args.proximity or 200
  local length    = args.length
  local path = {{x = args.x, y = args.y}}
  local path_r = args.r
  local px, py = args.x, args.y
  local traveled = 0
  while traveled < length do
    -- Find nearest enemy within proximity of current position.
    local closest, closest_d = nil, math.huge
    local nearby = query_entities_circle(px, py, proximity, {'enemy'})
    for _, e in ipairs(nearby or {}) do
      if not e._dead then
        local d = math.length(e.x - px, e.y - py)
        if d > 1 and d < closest_d then
          closest, closest_d = e, d
        end
      end
    end
    -- Bend heading toward nearest, capped at turn_rate per unit travel.
    if closest then
      local target_r = math.atan(closest.y - py, closest.x - px)
      local diff = math.atan(math.sin(target_r - path_r), math.cos(target_r - path_r))
      path_r = path_r + math.clamp(diff, -turn_rate*step_size, turn_rate*step_size)
    end
    -- Step forward.
    px = px + step_size*math.cos(path_r)
    py = py + step_size*math.sin(path_r)
    traveled = traveled + step_size
    path[#path + 1] = {x = px, y = py}
  end
  return path
end

That's the whole thing. Three operations per step: find nearest, bend toward it (capped), advance.

No cone clamp, no cone filter, no max_deviation, no original_r tracking. The earlier "loop / bend backward / yank off-axis" issues will be back — that's the point of this reset. Once you tell me what behavior you actually want, we add the minimum logic for that and nothing else.

Apply?

Let's try to go from here. Delete all the previous complex code.

The file E:\a327ex\attack-template\beam.lua has been updated successfully. (file state is current in your context — no need to Read it back)

beam.lua: ok

Done. build_homing_path is back to its three operations per step: find nearest, bend toward (capped), advance. The homing_max_deviation opt threading in beam:new and spawn_beam is now dead — but it's just a single arg that's never read, so I left it for now to keep the diff focused on the algorithm itself. Say the word and I'll strip those too.

Fire away and tell me what the behavior should be — I'll add the minimum logic for it, no preemptive layers.

Unshackle the turn rate from being a fixed value, this is now a value that can be changed. We'll add limits to it but for now have it free. And make it so that once the beam has hit one enemy, it can't hit that enemy again.

Quick clarifier — "unshackle the turn rate" can mean two pretty different things:

User has answered your questions: "Which interpretation of "unshackle the turn rate" matches what you want?"="Turn rate becomes a proportional multiplier". You can now continue with the user's answers in mind.

Two changes. Show first.

1. beam.lua — build_homing_path rewrite

Two behavioral changes baked in:

• Proportional bend: path_r = path_r + turn_rate * diff (no clamp). turn_rate=1 snaps fully, 0.5 halves the remaining angle, 0 = no homing.
• Hit-set tracking: local hit table records any enemy within hit_radius (= width*3, matching the damage perp threshold) of the current path position. Those enemies are excluded from the homing scan thereafter, so the path can't loop back to chase a target it's already passed through.

local function build_homing_path(args)
  local step_size = args.step_size or 3
  local turn_rate = args.turn_rate or 0.025
  local proximity = args.proximity or 200
  -- Hit radius matches the damage perp threshold (width*3) so an enemy
  -- the beam has passed through stops being a homing candidate — the
  -- path can't loop back to chase a target it already hit.
  local hit_radius = (args.width or 2)*3
  local length    = args.length
  local path = {{x = args.x, y = args.y}}
  local path_r = args.r
  local px, py = args.x, args.y
  local traveled = 0
  local hit = {}
  while traveled < length do
    local nearby = query_entities_circle(px, py, proximity, {'enemy'})
    -- Mark enemies within hit_radius of current position as hit. They
    -- won't be considered for homing on this or any later step.
    for _, e in ipairs(nearby or {}) do
      if not e._dead and not hit[e.id] then
        if math.length(e.x - px, e.y - py) <= hit_radius then
          hit[e.id] = true
        end
      end
    end
    -- Find nearest non-hit enemy within proximity.
    local closest, closest_d = nil, math.huge
    for _, e in ipairs(nearby or {}) do
      if not e._dead and not hit[e.id] then
        local d = math.length(e.x - px, e.y - py)
        if d > 1 and d < closest_d then
          closest, closest_d = e, d
        end
      end
    end
    -- Bend heading toward nearest by turn_rate × angular difference.
    -- turn_rate=1 snaps fully, 0.5 halves remaining angle, 0 = no bend.
    if closest then
      local target_r = math.atan(closest.y - py, closest.x - px)
      local diff = math.atan(math.sin(target_r - path_r), math.cos(target_r - path_r))
      path_r = path_r + turn_rate*diff
    end
    -- Step forward.
    px = px + step_size*math.cos(path_r)
    py = py + step_size*math.sin(path_r)
    traveled = traveled + step_size
    path[#path + 1] = {x = px, y = py}
  end
  return path
end

2. beam.lua — beam:new passes width to the path builder

  if args.homing then
    self.path = build_homing_path({
      x = self.x, y = self.y, r = self.r, length = self.length,
      turn_rate = args.homing_turn_rate,
      proximity = args.homing_proximity,
      step_size = args.homing_step_size,
      width     = self.width,
    })

3. main.lua — drop the math.max(0, …) floor on turn_rate

if is_pressed('beam_turn_rate_down') then
  current_beam_homing_turn_rate = current_beam_homing_turn_rate - 0.005
end

Lets you go negative (anti-homing) or arbitrarily high while testing. proximity and step_size keep their existing floors (proximity ≥ 0, step_size ≥ 1) since you didn't ask to free those.

Notes

• Default turn_rate = 0.025 is now very weak under the proportional interpretation — closes ~2.5 % of the remaining angle per step. Visible but slow. The 1/2 keys ramp it up quickly if you want a stronger feel.
• Hit radius uses width*3 to match the damage logic. Beam width default is 2 → hit_radius = 6. If you bump the beam width later, the homing avoid-zone scales with it automatically.
• Hit check uses the actual e.id (assigned by make_entity), so each seeker is unique even if multiple seekers overlap geometrically.

Apply?

Go ahead.

The file E:\a327ex\attack-template\beam.lua has been updated successfully. (file state is current in your context — no need to Read it back)

The file E:\a327ex\attack-template\beam.lua has been updated successfully. (file state is current in your context — no need to Read it back)

<tool_use_error>String to replace not found in file.
String: if is_pressed('beam_turn_rate_down') then
  current_beam_homing_turn_rate = math.max(0, current_beam_homing_turn_rate - 0.005)
end</tool_use_error>

173-bind('toggle_area_persistent', 'key:n')
174-bind('toggle_beam_homing',     'key:j')
175:bind('beam_turn_rate_down',    'key:1')
176:bind('beam_turn_rate_up',      'key:2')
177-bind('beam_proximity_down',    'key:3')
178-bind('beam_proximity_up',      'key:4')
--
295-    current_beam_homing = not current_beam_homing
296-  end
297:  if is_pressed('beam_turn_rate_down') then
298-    current_beam_homing_turn_rate = math.max(0, current_beam_homing_turn_rate - 0.005)
299-  end
300:  if is_pressed('beam_turn_rate_up') then
301-    current_beam_homing_turn_rate = current_beam_homing_turn_rate + 0.005
302-  end

The file E:\a327ex\attack-template\main.lua has been updated successfully. (file state is current in your context — no need to Read it back)

beam.lua: ok
main.lua: ok

All three edits applied, both files parse clean.

Test: with J on, fire a homing beam through a cluster of seekers. The path should pass through each seeker exactly once — once a seeker comes within width*3 = 6 of the path, it's marked hit and the path stops trying to home toward it. So no more loop-back behavior to the same target.

For the turn_rate feel, default 0.025 is now subtle (closes 2.5% of remaining angle per step). Press 2 a few times to ramp up if you want stronger homing; or press 1 past zero to test anti-homing.

OK, next rule, if I click on position x, y and the beam's length can make its way there, it should ALWAYS pass through it. The click position must always be passed through no matter what.

Here's the plan. The build accepts a target_x, target_y (the click) and:

1. Snap-to-target termination. When the path comes within one step of the click, append the click as the final point and return. Guarantees the click is the last point of the path whenever length allows reaching it.

2. Click as the default attractor. When no enemy is within homing proximity, the path bends toward the click instead of just continuing straight. Means the path naturally converges on the click between enemy detours.

spawn_beam defaults the target to main_camera.mouse so the demo gets click-tracking for free.

Diffs

beam.lua — build_homing_path rewrite

local function build_homing_path(args)
  local step_size = args.step_size or 3
  local turn_rate = args.turn_rate or 0.025
  local proximity = args.proximity or 200
  local hit_radius = (args.width or 2)*3
  local max_length = args.length
  local target_x, target_y = args.target_x, args.target_y
  local path = {{x = args.x, y = args.y}}
  local path_r = args.r
  local px, py = args.x, args.y
  local traveled = 0
  local hit = {}
  while traveled < max_length do
    -- Hard rule: if we're within one step of the click target, snap the
    -- last point to it and finish. Guarantees the beam always passes
    -- through the click position when length is sufficient.
    if target_x and target_y then
      local d = math.length(target_x - px, target_y - py)
      if d <= step_size then
        path[#path + 1] = {x = target_x, y = target_y}
        return path
      end
    end
    -- Mark enemies within hit_radius of current position as hit.
    local nearby = query_entities_circle(px, py, proximity, {'enemy'})
    for _, e in ipairs(nearby or {}) do
      if not e._dead and not hit[e.id] then
        if math.length(e.x - px, e.y - py) <= hit_radius then
          hit[e.id] = true
        end
      end
    end
    -- Find nearest non-hit enemy within proximity.
    local closest, closest_d = nil, math.huge
    for _, e in ipairs(nearby or {}) do
      if not e._dead and not hit[e.id] then
        local d = math.length(e.x - px, e.y - py)
        if d > 1 and d < closest_d then
          closest, closest_d = e, d
        end
      end
    end
    -- Target direction: nearest enemy if one exists, the click target
    -- otherwise. So between homing detours the path is always pulled
    -- back toward the click rather than drifting freely.
    local target_r
    if closest then
      target_r = math.atan(closest.y - py, closest.x - px)
    elseif target_x and target_y then
      target_r = math.atan(target_y - py, target_x - px)
    else
      target_r = path_r
    end
    local diff = math.atan(math.sin(target_r - path_r), math.cos(target_r - path_r))
    path_r = path_r + turn_rate*diff
    px = px + step_size*math.cos(path_r)
    py = py + step_size*math.sin(path_r)
    traveled = traveled + step_size
    path[#path + 1] = {x = px, y = py}
  end
  return path
end

beam.lua — beam:new (homing branch) forwards target: lua if args.homing then self.path = build_homing_path({ x = self.x, y = self.y, r = self.r, length = self.length, turn_rate = args.homing_turn_rate, proximity = args.homing_proximity, step_size = args.homing_step_size, width = self.width, target_x = args.target_x, target_y = args.target_y, })

beam.lua — spawn_beam reads the click from main_camera.mouse:

Replace the head of the function with: lua function spawn_beam(caster, opts) opts = opts or {} -- Click position the beam should pass through. Defaults to the camera -- mouse cursor; callers can override (e.g. an AI caster aiming at the -- player instead of the human cursor). local target_x = opts.target_x or main_camera.mouse.x local target_y = opts.target_y or main_camera.mouse.y local aim_r = opts.aim_r or math.angle_to_point(caster.x, caster.y, target_x, target_y)

And add to the beam(sx, sy, {...}) table: lua homing_step_size = opts.homing_step_size, target_x = target_x, target_y = target_y, })

Notes

• Non-homing beams are unaffected — they still go length units along aim_r. The click is naturally on that line (since aim_r is computed from the click), so the rule is satisfied trivially.
• Wall clipping still wins over click-snap. If a wall is between muzzle and click, the path is built to click first, then per-segment raycast truncates at the wall. Beam ends at wall, not click. Same v1 behavior.
• max_length becomes a safety cap — the loop normally exits via the target-snap. The cap kicks in only when the click is unreachable (too far or detours ate the budget).
• Path can travel more than distance(muzzle, click) because of detours. With length=600 in the demo and screen width 480, there's plenty of headroom.

Apply?

Go ahead.

The file E:\a327ex\attack-template\beam.lua has been updated successfully. (file state is current in your context — no need to Read it back)

The file E:\a327ex\attack-template\beam.lua has been updated successfully. (file state is current in your context — no need to Read it back)

The file E:\a327ex\attack-template\beam.lua has been updated successfully. (file state is current in your context — no need to Read it back)

The file E:\a327ex\attack-template\beam.lua has been updated successfully. (file state is current in your context — no need to Read it back)

beam.lua: ok

Applied, parses clean.

Test:

1. With J on, click anywhere reachable — the beam should always end exactly at the cursor position, regardless of which seekers it bent through along the way.
2. Click past a wall — beam ends at the wall (wall clip wins over click-snap).
3. Click far enough that length=600 isn't enough — beam ends wherever the budget ran out (the rule's "if length can make its way there" caveat).
4. Click into open space (no seekers near the path) — straight line from muzzle to click.
5. Click on the far side of the seeker line — path threads through nearby seekers and converges on the cursor.

Tunables still work: 1/2 turn_rate (now proportional 0–1+), 3/4 proximity, 5/6 step_size.

If the beam ends before it gets to the point, then you should actually have the point be passed through earlier rather than later.

The natural-build loop only returns early via the snap-to-target check. If it falls out via traveled >= max_length, the path ends wherever the budget ran out — and the click is nowhere on it. Fix: post-process at the end of the function. Find the path point closest to the click, truncate everything after, and append the click as the final point. The path's last hit is at the closest-approach point, then a direct segment to the click.

This puts the click "earlier" in the cumulative-distance sense — instead of being missed by the path's drift-off, it's now appended right after the moment the path was nearest to it. Whatever the path was doing after that point gets discarded.

Diff — add this block right before return path at the end of build_homing_path:

  -- Post-process: ensure the click is on the path. If we hit max_length
  -- before naturally reaching the click (i.e. we exited via the loop's
  -- traveled limit instead of the snap-to-target early-return), find the
  -- path point closest to the click, drop everything after it, and append
  -- the click as the final point. Satisfies "click is always passed
  -- through" even when homing detours used up the budget — by routing
  -- the path through the click at its closest approach rather than never.
  if target_x and target_y then
    local last = path[#path]
    if math.length(target_x - last.x, target_y - last.y) > step_size then
      local closest_idx, closest_d = 1, math.huge
      for i, pt in ipairs(path) do
        local d = math.length(target_x - pt.x, target_y - pt.y)
        if d < closest_d then
          closest_idx, closest_d = i, d
        end
      end
      for j = #path, closest_idx + 1, -1 do path[j] = nil end
      path[#path + 1] = {x = target_x, y = target_y}
    end
  end
  return path

Notes / caveats

• Path will have a sharp angle at the truncation point — the last segment is a straight line from the closest-approach point to the click, regardless of which way the curve was heading. If that visual reads bad, a smoother fix is to interpolate a short curve. We can iterate.
• Click is still last point — "earlier" here means cumulative distance, not segment index. If you wanted the beam to continue past click (with click somewhere in the middle of the path), that's a different design.
• Doesn't apply when click is naturally reached (the inner snap-to-target returns first) or when there's no target.

Apply?

Go ahead.

The file E:\a327ex\attack-template\beam.lua has been updated successfully. (file state is current in your context — no need to Read it back)

beam.lua: ok

Applied.

Test: with J on, click somewhere that the homing path can't reach naturally (turn_rate too low to converge in budget, or detours eat the budget). The beam should now end at the cursor regardless — with the trailing portion of the natural curve replaced by a straight segment from "closest approach" to "click."

If the sharp angle at the truncation point looks too abrupt, options to soften it: smaller step_size (finer granularity), higher turn_rate (path stays straighter, less truncation needed), or a smoothing pass on the corner.

Revert back to the simplest version again.

Diffs to fully revert.

beam.lua — build_homing_path back to baseline:

local function build_homing_path(args)
  local step_size = args.step_size or 3
  local turn_rate = args.turn_rate or 0.025
  local proximity = args.proximity or 200
  local length    = args.length
  local path = {{x = args.x, y = args.y}}
  local path_r = args.r
  local px, py = args.x, args.y
  local traveled = 0
  while traveled < length do
    -- Find nearest enemy within proximity of current position.
    local closest, closest_d = nil, math.huge
    local nearby = query_entities_circle(px, py, proximity, {'enemy'})
    for _, e in ipairs(nearby or {}) do
      if not e._dead then
        local d = math.length(e.x - px, e.y - py)
        if d > 1 and d < closest_d then
          closest, closest_d = e, d
        end
      end
    end
    -- Bend heading toward nearest, capped at turn_rate per unit travel.
    if closest then
      local target_r = math.atan(closest.y - py, closest.x - px)
      local diff = math.atan(math.sin(target_r - path_r), math.cos(target_r - path_r))
      path_r = path_r + math.clamp(diff, -turn_rate*step_size, turn_rate*step_size)
    end
    -- Step forward.
    px = px + step_size*math.cos(path_r)
    py = py + step_size*math.sin(path_r)
    traveled = traveled + step_size
    path[#path + 1] = {x = px, y = py}
  end
  return path
end

Gone: hit-tracking, target snap, target-as-fallback-direction, proportional bend, post-process. Back to: find nearest, bend (clamped to turn_rate*step_size), advance.

beam.lua — beam:new homing branch — drop width, target_x, target_y: lua if args.homing then self.path = build_homing_path({ x = self.x, y = self.y, r = self.r, length = self.length, turn_rate = args.homing_turn_rate, proximity = args.homing_proximity, step_size = args.homing_step_size, })

beam.lua — spawn_beam — drop target_x/target_y plumbing:

function spawn_beam(caster, opts)
  opts = opts or {}
  local aim_r = opts.aim_r or math.angle_to_point(caster.x, caster.y,
                                                  main_camera.mouse.x,
                                                  main_camera.mouse.y)

…and remove the trailing target_x = target_x, target_y = target_y, lines from the inner beam(sx, sy, {...}) table.

Apply?

Yes.

The file E:\a327ex\attack-template\beam.lua has been updated successfully. (file state is current in your context — no need to Read it back)

The file E:\a327ex\attack-template\beam.lua has been updated successfully. (file state is current in your context — no need to Read it back)

The file E:\a327ex\attack-template\beam.lua has been updated successfully. (file state is current in your context — no need to Read it back)

The file E:\a327ex\attack-template\beam.lua has been updated successfully. (file state is current in your context — no need to Read it back)

beam.lua: ok

Reverted, parses clean. build_homing_path is back to the bare three-step algorithm. beam:new and spawn_beam no longer mention target_x/target_y or width. Clean slate.

Let's leave it like this for now then. Let's do the persistent lines next, the reference is the Beam attack in Orblike v1.

Looking at v1's beam (lines 3619-4051, deep-dived in findings.md §5), the persistent mode has a bunch of distinctive properties: held-while-button-down, per-frame path rebuild (follows aim), tick_rate-paced damage with damaged_by_area cooldown, looped drone sound pitched by tick rate, beam tip circle that flashes on tick, scrolling dashed visual with white leading-edge flash, player speed mult 0.4 + turn rate cap 2 rad/s while channeling.

A few decisions before drafting:

User has answered your questions: "How should the demo start / stop the persistent beam?"="Hold mouse:3 (Recommended)", "How wide should the first persistent-beam pass be?"="Minimal core only (Recommended)", "Where does the persistent code live?"="Extend beam.lua (Recommended)", "How tightly does the path follow the aim?"="Rebuild every frame (Recommended)". You can now continue with the user's answers in mind.

Let me check what input edge-detection functions exist in this project's input API.

No matches found

4:  The C engine provides input_bind/is_down/is_pressed/is_released/etc.
33:function input_down(action) return is_down(action) end
34:function input_pressed(action) return is_pressed(action) end
35:function input_released(action) return is_released(action) end

is_released confirmed. Let me verify player.r is the mouse-aim direction.

7-  self.speed = self.base_speed
8:  self.r = 0
9-  self.visual_r = 0
--
108-  local target_r = math.angle_to_point(self.x, self.y, mx, my)
109:  self.r = math.lerp_angle_dt(0.99, 0.1, dt, self.r, target_r)
110-

is_released and player.r both confirmed. Here's the plan.

Architecture

beam.lua gets a persistent flag. When set:

• No initial damage / no retract clumps / no timed kill — lives until released externally.
• beam:rebuild_path() runs every frame, re-deriving muzzle position and aim_r from caster.x/y/r so the beam follows the player.
• timer_every(tick_rate, …) drives damage ticks. Damage uses the same AABB + per-segment perp distance check as instant, plus a per-enemy cooldown table (so a tick can't double-hit) and hit_vol = 0 for the per-enemy sound.
• Tip circle (spring-scaled) flashes white on each successful tick, plus 1–2 radial particles from the tip.
• Visual swap: scrolling dashed line (5-long / 6-gap, scrolling at 80 units/s) instead of the clump-retract used by instant.
• beam:release() ends the beam (just calls entity_kill). main.lua calls this on mouse:3 release.

Carrier stores self.caster_id = caster.id; rebuild reads entities[self.caster_id] each frame. If caster dies or goes missing, the beam self-releases.

New beam.lua additions

beam:rebuild_path() — called once at construction and per-frame for persistent:

function beam:rebuild_path()
  -- Persistent: snap muzzle + aim to caster's current state each call.
  if self.persistent then
    local caster = entities[self.caster_id]
    if not caster or caster._dead or caster._dying then
      self:release()
      return
    end
    self.r = caster.r
    local off = 8
    self.x = caster.x + off*math.cos(self.r)
    self.y = caster.y + off*math.sin(self.r)
  end

  if self.homing then
    self.path = build_homing_path({
      x = self.x, y = self.y, r = self.r, length = self.max_length,
      turn_rate = self.homing_turn_rate,
      proximity = self.homing_proximity,
      step_size = self.homing_step_size,
    })
  else
    local cos_r, sin_r = math.cos(self.r), math.sin(self.r)
    self.path = {
      {x = self.x, y = self.y},
      {x = self.x + self.max_length*cos_r, y = self.y + self.max_length*sin_r},
    }
  end

  -- Per-segment wall clip.
  for i = 1, #self.path - 1 do
    local hit = raycast_entity(self.path[i].x, self.path[i].y,
                               self.path[i+1].x, self.path[i+1].y, {'wall'})
    if hit then
      self.path[i+1] = {x = hit.point_x, y = hit.point_y}
      for j = #self.path, i + 2, -1 do self.path[j] = nil end
      break
    end
  end

  -- Cumulative distance per point.
  self.path_dists = {0}
  for i = 2, #self.path do
    local dx = self.path[i].x - self.path[i-1].x
    local dy = self.path[i].y - self.path[i-1].y
    self.path_dists[i] = self.path_dists[i-1] + math.length(dx, dy)
  end
  self.length = self.path_dists[#self.path_dists]
end

beam:apply_tick() — per-tick damage for persistent:

function beam:apply_tick()
  if #self.path < 2 then return end
  local hit_h = self.width*3
  local min_x, min_y = math.huge, math.huge
  local max_x, max_y = -math.huge, -math.huge
  for _, pt in ipairs(self.path) do
    if pt.x < min_x then min_x = pt.x end
    if pt.x > max_x then max_x = pt.x end
    if pt.y < min_y then min_y = pt.y end
    if pt.y > max_y then max_y = pt.y end
  end
  min_x = min_x - hit_h; max_x = max_x + hit_h
  min_y = min_y - hit_h; max_y = max_y + hit_h
  local cx, cy = (min_x + max_x)/2, (min_y + max_y)/2
  local w,  h  = max_x - min_x, max_y - min_y
  local enemies = query_entities_box(cx, cy, w, h, 0, {'enemy'})
  local pc = edition_base_color(self.edition) or self.color
  local hit_any = false
  for _, e in ipairs(enemies or {}) do
    if e.hit and not e._dead then
      local cd = self.hit_cooldowns[e.id]
      if not cd or time >= cd then
        local in_range = false
        for i = 1, #self.path - 1 do
          local ax, ay = self.path[i].x,   self.path[i].y
          local bx, by = self.path[i+1].x, self.path[i+1].y
          local abx, aby = bx - ax, by - ay
          local seg_len_sq = abx*abx + aby*aby
          if seg_len_sq > 0 then
            local t = math.clamp(((e.x - ax)*abx + (e.y - ay)*aby)/seg_len_sq, 0, 1)
            local px, py = ax + t*abx, ay + t*aby
            if math.length(e.x - px, e.y - py) < hit_h then
              in_range = true
              break
            end
          end
        end
        if in_range then
          self.hit_cooldowns[e.id] = time + self.tick_rate
          e:hit(self.damage, 0)
          hit_any = true
          for i = 1, random_int(1, 2) do
            spawn_particle(e.x, e.y, {
              velocity = random_float(30, 80),
              duration = random_float(0.1, 0.2),
              w        = 4,
            }):change_color(0.5, pc)
          end
        end
      end
    end
  end
  if hit_any then
    self.tip_flashing = true
    timer_after(self.timer, 0.08, 'tip_flash', function() self.tip_flashing = false end)
    spring_pull(self.tip_spring, 'main', 0.3)
    local tip = self.path[#self.path]
    for i = 1, 2 do
      spawn_particle(tip.x, tip.y, {
        angle    = random_float(0, 2*math.pi),
        velocity = random_float(40, 100),
        duration = random_float(0.1, 0.3),
        w        = 4,
      }):change_color(0.5, pc)
    end
  end
end

beam:release(): lua function beam:release() if self._dying or self._dead then return end entity_kill(self) end

beam:new refactor (branching on self.persistent)

Pulls the args, calls self:rebuild_path() once, then branches:

function beam:new(x, y, args)
  args = args or {}
  self.x = x
  self.y = y
  self.r          = args.r or 0
  self.max_length = args.length or 150
  self.length     = self.max_length
  self.width      = args.width or 2
  self.damage     = args.damage or 2
  self.color      = args.color and color_clone(args.color) or color_clone(red)
  self.edition    = args.edition or 0
  self.persistent = args.persistent or false
  self.tick_rate  = args.tick_rate or 0.15
  self.caster_id  = args.caster_id
  self.homing            = args.homing
  self.homing_turn_rate  = args.homing_turn_rate
  self.homing_proximity  = args.homing_proximity
  self.homing_step_size  = args.homing_step_size
  self.hit_cooldowns = {}

  if not self.persistent then
    self.duration = args.duration or 0.25
  end

  self:rebuild_path()

  make_entity(self)
  self.timer = timer_new()

  if self.persistent then
    -- Persistent: tip spring + flash flag for tick juice; timer_every
    -- for damage ticks. No initial damage; first tick fires at tick_rate.
    self.tip_spring = spring_new()
    self.tip_flashing = false
    timer_every(self.timer, self.tick_rate, 'tick', function() self:apply_tick() end)
  else
    -- Instant: tip impact FX + single damage + retract clumps + kill.
    local tip = self.path[#self.path]
    local pc = edition_base_color(self.edition) or self.color
    spawn_hit_circle(tip.x, tip.y, {radius = 7, duration = 0.2}):change_color(0.3, pc)
    for i = 1, 2 do
      spawn_particle(tip.x, tip.y, {
        angle    = random_float(0, 2*math.pi),
        velocity = random_float(40, 200),
        duration = random_float(0.3, 0.6),
        w        = random_choice({6, 8}),
      }):change_color(0.5, pc)
    end
    self:apply_damage()
    self:build_clumps()
    for _, clump in ipairs(self.clumps) do
      local mid = (clump.clump_start + clump.clump_end)/2
      local delay = random_float(0, self.duration*0.4)
      local tween_dur = self.duration - delay
      timer_after(self.timer, delay, function()
        timer_tween(self.timer, tween_dur, clump, {visible_start = mid, visible_end = mid}, math.cubic_in)
      end)
    end
    timer_after(self.timer, self.duration + 0.05, function() entity_kill(self) end)
  end
end

beam:update and beam:draw branching

function beam:update(dt)
  timer_update(self.timer, dt)
  if self.persistent then
    self:rebuild_path()
    if self.tip_spring then spring_update(self.tip_spring, dt) end
  end
end

function beam:draw(layer)
  set_edition(layer, self.edition)
  local c = self.color()
  if self.persistent then
    -- Scrolling dashed line (5-long / 6-gap, scrolling 80 units/s).
    local dash_len, gap_len = 5, 6
    local stride = dash_len + gap_len
    local scroll_speed = 80
    local scroll = (time*scroll_speed) % stride
    local d = scroll - stride
    while d < self.length do
      local sd = math.max(d, 0)
      local ed = math.min(d + dash_len, self.length)
      if ed - sd > 0.5 then
        local sx, sy = self:path_point(sd)
        local ex, ey = self:path_point(ed)
        layer_line(layer, sx, sy, ex, ey, 2, c)
      end
      d = d + stride
    end
    -- Tip circle: spring-scaled; flashes white on each successful tick.
    local tip = self.path[#self.path]
    local tip_r = (self.width + 1.5)*self.tip_spring.main.x
    local tip_c = self.tip_flashing and fg_color() or self.color()
    layer_circle(layer, tip.x, tip.y, tip_r, tip_c)
  else
    -- Instant: clump-retract dashes (existing logic).
    for _, clump in ipairs(self.clumps) do
      if clump.visible_end - clump.visible_start > 0.3 then
        for _, seg in ipairs(clump.segs) do
          local sd = math.max(seg.start_d, clump.visible_start)
          local ed = math.min(seg.end_d, clump.visible_end)
          if ed - sd > 0.3 then
            local sx, sy = self:path_point(sd)
            local ex, ey = self:path_point(ed)
            layer_line(layer, sx, sy, ex, ey, 2, c)
          end
        end
      end
    end
  end
  set_edition(layer, 0)
end

spawn_beam — pass caster_id, persistent, tick_rate through

Add to the beam(sx, sy, {...}) table: lua persistent = opts.persistent, tick_rate = opts.tick_rate, caster_id = caster.id,

main.lua wiring

Bind: lua bind('toggle_beam_persistent', 'key:o')

State (with the other beam toggles): lua current_beam_persistent = false active_beam = nil

Toggle handler: lua if is_pressed('toggle_beam_persistent') then current_beam_persistent = not current_beam_persistent end

Fire handler — replace existing fire_beam block: lua -- Beam: instant (single press = railgun_flash retract) or persistent -- (hold mouse:3 to channel; release to stop). if active_beam and active_beam._dead then active_beam = nil end if current_beam_persistent then if is_pressed('fire_beam') and not p._dead and not active_beam then active_beam = spawn_beam(p, { damage = 0, length = 600, persistent = true, tick_rate = 0.15, homing = current_beam_homing, homing_turn_rate = current_beam_homing_turn_rate, homing_proximity = current_beam_homing_proximity, homing_step_size = current_beam_homing_step_size, }) end if is_released('fire_beam') and active_beam then active_beam:release() active_beam = nil end elseif is_pressed('fire_beam') and not p._dead then spawn_beam(p, { damage = 0, length = 600, homing = current_beam_homing, homing_turn_rate = current_beam_homing_turn_rate, homing_proximity = current_beam_homing_proximity, homing_step_size = current_beam_homing_step_size, }) end

HUD line (new line, fits with the existing 4): lua layer_text(debug_layer, 'beam: ' .. (current_beam_persistent and 'PERSISTENT' or 'INSTANT'), fonts.tune, hud_x, hud_y + 48, text())

Notes / sanity

• Per-frame cost. Persistent + homing rebuilds the homing path each frame (~50 enemy-circle queries at default step_size). At 60 fps with 10 seekers in the demo, ~3000 queries/sec. Fine. Scales with enemy count if it gets big.
• Tick cadence vs path updates. Path rebuilds every frame; damage ticks every tick_rate (default 0.15s). The tick uses whatever the current path is — so a fast-moving aim still hits everything along the line at tick time, not in between.
• Caster death. rebuild_path checks caster._dead/_dying and releases. The beam dies the same frame as the caster.
• No length lerp — beam goes to full max_length instantly per frame. v1's 0.99/0.08 lerp on beam_current_length is the "beam length+ ramp-up" effect; skipped per minimal scope.
• No drone sound — silence per minimal scope. Trivial to add later (sound_load + sound_handle_set_loop on construction, stop in release).
• No player slow / turn-rate cap — skipped per minimal scope.

Apply?

Go ahead.

1    --[[
2     beam.lua — line / beam attack carrier (instant mode, minimal v1 port).
3   
4     Internally the beam is a POLYLINE — list of {x,y} points walked left-
5     to-right. For a non-homing beam this is just 2 points (muzzle and
6     endpoint). For a homing beam, v1's build_homing_path algorithm walks
7     forward 3 units at a time, bending the heading toward the nearest
8     enemy within `homing_proximity`. The same downstream pipeline (wall
9     clip, damage, dash draw) handles both cases.
10  
11    Scope of this first pass:
12      • Straight or homing path from caster's muzzle. Wall raycast clips
13        per-segment so a curving beam stops correctly on the first wall.
14      • Single damage pass at fire time. AABB cull via query_entities_box
15        around the path's bounding box, then per-enemy per-segment
16        perpendicular distance check (v1 line 3957-4001 algorithm).
17      • Visual: v1 railgun_flash — dashed line walked along the path,
18        grouped into clumps of 2-4 whose ends tween toward each clump's
19        midpoint with staggered delays over `duration`.
20      • Tip impact FX (white→edition-color hit_circle + 2 radial particles)
21        at the path's last point, wherever the curve actually ends.
22      • Caster juice: directional shake, recoil 'shoot' spring, 0.15s
23        flash, muzzle hit_circle + 2 forward cone particles.
24  
25    Persistent mode (continuous channeled beam with drone + tick damage +
26    per-frame path re-build with lerp smoothing) is the next iteration.
27  
28    Caller API (mirrors spawn_projectile):
29      spawn_beam(caster, {
30        aim_r,             -- optional, default: caster → main_camera.mouse
... [329 more lines]

The file E:\a327ex\attack-template\beam.lua has been updated successfully. (file state is current in your context — no need to Read it back)

Now the main.lua edits.

The file E:\a327ex\attack-template\main.lua has been updated successfully. (file state is current in your context — no need to Read it back)

216-current_beam_homing_proximity  = 200
217:current_beam_homing_step_size  = 3
218-

The file E:\a327ex\attack-template\main.lua has been updated successfully. (file state is current in your context — no need to Read it back)

The file E:\a327ex\attack-template\main.lua has been updated successfully. (file state is current in your context — no need to Read it back)

Now replace the fire_beam handler with the persistent-aware version.

The file E:\a327ex\attack-template\main.lua has been updated successfully. (file state is current in your context — no need to Read it back)

Now the HUD line. Find the existing HUD block.

549-             fonts.tune, hud_x, hud_y + 24, text())
550:  layer_text(debug_layer, string.format('step_size: %d  [5/6]', current_beam_homing_step_size),
551:             fonts.tune, hud_x, hud_y + 36, text())
552-

The file E:\a327ex\attack-template\main.lua has been updated successfully. (file state is current in your context — no need to Read it back)

beam.lua: ok
main.lua: ok

Both parse clean.

Summary of what landed

beam.lua — full rewrite with persistent mode added. Single carrier handles both:

• Instant (existing): single damage pass, railgun_flash retract visual, auto-kill at duration.
• Persistent (new): held-while-channel. rebuild_path runs per frame from caster.r. timer_every(tick_rate, …) drives damage ticks with per-enemy cooldown and hit_vol=0. Scrolling dashed visual + spring-scaled tip circle that flashes white on each tick.
• New methods: beam:rebuild_path, beam:apply_tick, beam:release.
• spawn_beam now forwards caster_id, persistent, tick_rate.

main.lua — O toggle, current_beam_persistent + active_beam state, mouse:3 down/up start/release the channel, new HUD line.

Test plan

1. ./run.bat — instant beam works as before (mouse:3 click).
2. Press O — HUD shows beam: PERSISTENT.
3. Hold mouse:3 — beam appears, follows your aim. Dashes scroll along the line. Tip circle pulses at the end.
4. Walk around / rotate while holding — beam tracks the cursor continuously.
5. Every 0.15s, enemies along the line take damage (HP bar appears) and the tip flashes white + spring-pops + sprays particles.
6. Release mouse:3 — beam disappears.
7. Toggle J (homing) while channeling — next channel rebuilds with homing path, curves through enemies each frame.
8. Tune 1/2/3/4/5/6 while channeling — values update in HUD; effect appears on next path rebuild (= next frame).
9. Aim into the wall — beam clips at wall surface, tip stuck on wall.
10. Kill the player (probably hard in the demo since seekers are frozen, but if you can) — beam should self-release.

Knobs to play with for the feel: tick_rate = 0.15 (in main.lua's spawn_beam call) and beam width = 2 (default in beam.lua, controls the perp hit window).

Check the original for juice on the player and on the beam + end of the beam itself to see if you copied it correctly. Recalculate the path every tick instead. Does the path remain visually persistent every frame or does it disappear and appear again on each tick? Make sure the juice is exactly the same on both.

Let me audit the v1 source carefully and confirm what's going on in each spot.

3619     elseif def and def.activation == 'hold' and def.carrier == 'beam' then
3620          local mods = p1:get_mods()
3621          if orb_input_down(self.slot) or mods.always_channel then
3622            if not self.beam_active and not self.beam_starting then
3623              self.beam_starting = true
3624              self.beam_active = false
3625              self.beam_tick_timer = 0
3626              self.beam_current_length = 0
3627              self.beam_cast_log = damage_cast_log.new(ability_name, def.element)
3628              self.beam_cast_log:add_pending()
3629              -- Startup line + effects
3630              local startup_mods = p1:get_mods()
3631              for _, s in ipairs(self.slots) do
3632                if s.type == 'modifier' then startup_mods[s.name] = s.value end
3633              end
3634              local startup_null = ability_has_tag('beam', 'null') or startup_mods.null_conversion
3635              if startup_null then
3636                -- Player-to-orb line in purple
3637                an:add(slightly_jagged_line(p1, self, {anim_duration = self.activation_delay, src_color = purple, dst_color = purple, edition = orb_ed}))
3638                p1.spring:pull('shoot', 0.15)
3639                p1.flashing = true
3640                p1.timer:after(0.1, 'flash', function() p1.flashing = false end)
3641              else
3642                -- Orb-to-player line in ability color
3643                an:add(slightly_jagged_line(self, p1, {anim_duration = self.activation_delay, src_color = def.color, dst_color = def.color, edition = orb_ed}))
3644              end
3645              self.flashing = true
3646              self.timer:after(0.1, 'flash', function() self.flashing = false end)
3647              self.spring:pull('main', 0.5)
3648              local particle_r = startup_null and math.angle_to_point(p1.x, p1.y, self.x, self.y) or math.angle_to_point(self.x, self.y, p1.x, p1.y)
... [60 more lines]

3880               end
3881                end
3882                return beam_path[#beam_path].x, beam_path[#beam_path].y
3883              end
3884    
3885              -- Draw dashes along path
3886              local center_width = def.beam_width
3887              local center_cap = center_width/2
3888              local d = scroll - stride
3889              -- Guide lines (only if beam_width > base)
3890              if beam_width > def.beam_width then
3891                local guide_color = is_null and purple:clone() or def.color:clone()
3892                guide_color.a = 60
3893                local gc = guide_color()
3894                local guide_d = scroll - stride
3895                while guide_d < total_path_len do
3896                  local dash_start = math.max(guide_d, 0)
3897                  local dash_end = math.min(guide_d + dash_length, total_path_len)
3898                  if dash_end - dash_start > 0.5 then
3899                    local sx, sy = path_point(dash_start)
3900                    local ex, ey = path_point(dash_end)
3901                    local seg_r = math.atan(ey - sy, ex - sx)
3902                    local px, py = math.cos(seg_r + math.pi/2), math.sin(seg_r + math.pi/2)
3903                    local offset = beam_width*1.5
3904                    ability_layer:line(sx + px*offset, sy + py*offset, ex + px*offset, ey + py*offset, 1, gc)
3905                    ability_layer:line(sx - px*offset, sy - py*offset, ex - px*offset, ey - py*offset, 1, gc)
3906                  end
3907                  guide_d = guide_d + stride
3908                end
3909              end
... [80 more lines]

Let me check our spring API signature and confirm a few more v1 details before drafting.

63:function spring_pull(s, name, force, frequency, bounce)
64-  local sp = s[name]
65-  if not sp then return end
66-  if frequency then
67-    sp.k = (2*math.pi*frequency)^2
68-    sp.d = 4*math.pi*(1 - (bounce or 0.5))*frequency

OK, audit results. I read v1 lines 3619–3998 (activation block, draw block, tip block, tick damage block). Here's what I found.

Path rebuild timing (your direct question)

v1 rebuilds the path every frame (the beam_current_length lerp + path generation happens inside the per-frame block, line 3700–3820 area). The path is also drawn every frame (line 3911 onward, every frame, the dashed line + tip circle + guide lines re-render).

So v1's answer is: path is visually persistent every frame (drawn continuously, no flicker), AND geometrically recomputed every frame.

You're asking for a deviation: rebuild only on tick, not every frame. Drawing stays per-frame (using whatever the last tick stored). Result: the beam visibly "snaps" to a new path every tick_rate (0.15s = ~6.7 Hz), but never disappears between ticks. This will read as a rhythmic stutter at low tick rates. With v1's path-per-frame, the line tracks aim smoothly.

v1 juice audit — what I copied wrong

Player-side activation (v1 lines 3645–3661, with orb-as-caster adapted to player):

Tip juice on tick (v1 lines 3931–3941):

Per-enemy tick juice (v1 lines 3983–3995):

Proposed changes

1. spawn_beam — player-side cast juice rewritten to v1's beam activation

Replace the existing juice block (shake + spring + flash + muzzle hit_circle + 2 particles) with:

  -- v1 beam activation juice (lines 3645-3661). Player is the source
  -- (no orb in attack-template); particles emanate from caster body in
  -- a forward cone toward the aim direction.
  if caster.spring then spring_pull(caster.spring, 'main', 0.5) end
  if caster.timer then
    caster.flashing = true
    timer_after(caster.timer, 0.1, 'shoot_flash', function() caster.flashing = false end)
  end
  local pc = edition_base_color(caster.edition) or color
  for i = 1, 3 do
    spawn_particle(caster.x, caster.y, {
      angle    = aim_r + random_float(-math.pi/4, math.pi/4),
      velocity = random_float(40, 120),
      duration = random_float(0.2, 0.4),
      w        = random_choice({4, 6}),
    }):change_color(0.5, pc)
  end

Gone: shake_push, the 'shoot'/'shoot_flash' naming, spawn_hit_circle muzzle puff. Same juice now fires for both instant and persistent (they share spawn_beam).

2. beam:apply_tick — fix tip + per-enemy juice + path rebuild timing

function beam:apply_tick()
  -- Path rebuild moved here from :update — recompute geometry only on
  -- tick boundaries instead of every frame. Drawing still happens per
  -- frame from the stored path, so the beam stays visible between ticks
  -- (it just freezes in place until the next tick).
  self:rebuild_path()
  if #self.path < 2 then return end
  local hit_h = self.width*3
  local min_x, min_y = math.huge, math.huge
  local max_x, max_y = -math.huge, -math.huge
  for _, pt in ipairs(self.path) do
    if pt.x < min_x then min_x = pt.x end
    if pt.x > max_x then max_x = pt.x end
    if pt.y < min_y then min_y = pt.y end
    if pt.y > max_y then max_y = pt.y end
  end
  min_x = min_x - hit_h; max_x = max_x + hit_h
  min_y = min_y - hit_h; max_y = max_y + hit_h
  local cx, cy = (min_x + max_x)/2, (min_y + max_y)/2
  local w,  h  = max_x - min_x, max_y - min_y
  local enemies = query_entities_box(cx, cy, w, h, 0, {'enemy'})
  local pc = edition_base_color(self.edition) or self.color
  local hit_any = false
  for _, e in ipairs(enemies or {}) do
    if e.hit and not e._dead then
      local cd = self.hit_cooldowns[e.id]
      if not cd or time >= cd then
        local in_range = false
        for i = 1, #self.path - 1 do
          local ax, ay = self.path[i].x,   self.path[i].y
          local bx, by = self.path[i+1].x, self.path[i+1].y
          local abx, aby = bx - ax, by - ay
          local seg_len_sq = abx*abx + aby*aby
          if seg_len_sq > 0 then
            local t = math.clamp(((e.x - ax)*abx + (e.y - ay)*aby)/seg_len_sq, 0, 1)
            local px, py = ax + t*abx, ay + t*aby
            if math.length(e.x - px, e.y - py) < hit_h then
              in_range = true
              break
            end
          end
        end
        if in_range then
          self.hit_cooldowns[e.id] = time + self.tick_rate
          -- v1 line 3983: hit_vol = 0.5 (half-volume per-enemy thud).
          e:hit(self.damage, 0.5)
          -- v1 line 3994: hit_effect sprite on enemy hit.
          spawn_hit_effect(e.x, e.y)
          hit_any = true
          -- v1 line 3995: exactly 1 hit_particle, vel 30-80, dur 0.1-0.2, w=4.
          spawn_particle(e.x, e.y, {
            velocity = random_float(30, 80),
            duration = random_float(0.1, 0.2),
            w        = 4,
          }):change_color(0.5, pc)
        end
      end
    end
  end
  if hit_any then
    self.tip_flashing = true
    -- v1 lines 3935-3940: flash decays at 8/s, white while > 0.5 → 0.0625s.
    timer_after(self.timer, 0.0625, 'tip_flash', function() self.tip_flashing = false end)
    -- v1 line 3932: pull beam_tip spring with explicit freq/damping.
    spring_pull(self.tip_spring, 'main', 0.5, 4, 0.6)
    -- v1 lines 3943-3953: 2 tip particles, random angle, vel 40-120, dur 0.2-0.4, w {4,6}.
    local tip = self.path[#self.path]
    for i = 1, 2 do
      spawn_particle(tip.x, tip.y, {
        angle    = random_float(0, 2*math.pi),
        velocity = random_float(40, 120),
        duration = random_float(0.2, 0.4),
        w        = random_choice({4, 6}),
      }):change_color(0.5, pc)
    end
  end
end

3. beam:update — drop the per-frame path rebuild

function beam:update(dt)
  timer_update(self.timer, dt)
  if self.persistent and self.tip_spring then
    spring_update(self.tip_spring, dt)
  end
end

(Path rebuild lives in apply_tick now. Initial rebuild at construction stays.)

Notes

• Instant tip-impact FX (the white-flash-to-edition-color hit_circle + radial particles at the tip you specifically asked for earlier) stays in beam:new's instant branch. It's a deliberate addition we made together — v1 railgun_flash doesn't have it, but you wanted it.
• Tick-locked path is going to feel laggy. At tick_rate 0.15s, the beam visibly stutters when the player rotates. We can iterate — e.g. only freeze the homing-detour part, keep the muzzle position + initial heading per-frame. But starting from the strict interpretation per your instruction.

Apply?

Go ahead, you can also turn the enemies back to normal, taking damage and dying, and also give me a key (L) to spawn a pack of enemies near the wall. You don't have to show me the code for this, just do it all directly.

Applying everything now.

The file E:\a327ex\attack-template\beam.lua has been updated successfully. (file state is current in your context — no need to Read it back)

The file E:\a327ex\attack-template\beam.lua has been updated successfully. (file state is current in your context — no need to Read it back)

The file E:\a327ex\attack-template\beam.lua has been updated successfully. (file state is current in your context — no need to Read it back)

Now the main.lua edits — revert seekers to normal, add L key, restore damage.

The file E:\a327ex\attack-template\main.lua has been updated successfully. (file state is current in your context — no need to Read it back)

The file E:\a327ex\attack-template\main.lua has been updated successfully. (file state is current in your context — no need to Read it back)

The file E:\a327ex\attack-template\main.lua has been updated successfully. (file state is current in your context — no need to Read it back)

The file E:\a327ex\attack-template\main.lua has been updated successfully. (file state is current in your context — no need to Read it back)

beam.lua: ok
main.lua: ok

All applied, parses clean. Summary:

beam.lua:

• spawn_beam cast juice now matches v1 line 3645–3661: spring 'main' pull 0.5, flash 0.1 s, 3 particles from caster body in forward cone (vel 40–120, dur 0.2–0.4, w ∈ {4,6}). Camera shake and muzzle hit_circle removed — both came from projectile's pattern and aren't in v1's beam.
• beam:update no longer rebuilds the path each frame — only updates the tip spring.
• beam:apply_tick now rebuilds the path at the start of each tick (your explicit request). Tip spring uses (0.5, 4, 0.6) matching v1. Tip flash 0.0625 s (v1's 8/s decay → > 0.5 threshold). Tip particles vel 40–120, dur 0.2–0.4, w ∈ {4,6}. Per-enemy: e:hit(damage, 0.5), spawn_hit_effect, exactly 1 particle.

main.lua:

• Seekers back to the original 5-in-a-ring spawn around the player, no frozen flag. They chase + take damage + die normally.
• L key spawns a pack of 5 seekers in a small ring near the central wall (radius 20–40 from wall center).
• Beam damage restored: instant = 2, persistent = 1 per tick.

Heads-up on the tick-locked path

At tick_rate = 0.15 s the beam will visibly stutter when you rotate fast — the path snaps to your aim every 0.15 s and freezes in between. That's the v1 deviation you asked for. If the stutter feels worse than expected, two options: drop tick_rate (faster ticks = smoother), or revert to per-frame rebuild and keep tick-paced damage only.

What's the button to change to persistent beam?

The O key. It toggles the beam between instant and persistent modes — the HUD shows beam: INSTANT or beam: PERSISTENT. Then with persistent active, hold mouse:3 (middle-click) to channel, release to stop.

Let's have previous persistent lines fade out like the instant ones instead of disappearing immediately, just go the change, no need to show me.

11:  the timer) for naming the scheduled callback. Named callbacks can be cancelled,
27:    timer_cancel          - cancel a named callback
232:  timer_cancel(t, name)
235:function timer_cancel(t, name)
237:  if i then t.entries[i].cancelled = true end
253:    e.callback(); e.cancelled = true
302:    if not e.cancelled then

The file E:\a327ex\attack-template\beam.lua has been updated successfully. (file state is current in your context — no need to Read it back)

The file E:\a327ex\attack-template\beam.lua has been updated successfully. (file state is current in your context — no need to Read it back)

beam.lua: ok

Done. On release, the persistent beam now freezes its current path and fades out with the same 2–4-segment clump-retract over 0.25 s that the instant beam uses, instead of vanishing instantly. The else branch in draw already handles the clump-retract, so a releasing persistent beam routes through the same path as an instant beam.

This only happens on release, I meant that it should happen on every tick, so on every tick the current line for the tick disappears while the next one simultaneously appears. You may need to do more work for this if you always assumed only one line was possible at a time.

The file E:\a327ex\attack-template\beam.lua has been updated successfully. (file state is current in your context — no need to Read it back)

beam.lua: ok

Done. Architecture changed from "one line" to a list of flash sub-objects.

What happens now: the persistent beam holds self.flashes — a list. Every tick it:

1. Rebuilds the path from the caster's current aim
2. Spawns a fresh flash (own timer, own clumps, own retract tweens) from that path
3. Applies tick damage

Each flash fades via the same clump-retract as the instant beam, over exactly tick_rate (0.15s). So the previous tick's line finishes retracting precisely as the new tick's line appears — and during the transition both are on screen. beam:update prunes dead flashes; beam:draw draws all live flashes plus the tip circle.

Refactored path_point and build_clumps from methods to free functions so flashes and the beam share them. Flashes share the path table by reference (safe — rebuild_path always allocates fresh tables, never mutates old ones), so no per-tick path copy.

Release still works: stops ticks, lets in-flight flashes finish fading, kills the entity once the last one is gone.

Tunable: fade_duration = tick_rate means a clean hand-off (old line just finished as new appears). For more visible overlap — previous line still substantially on screen when the new one pops in — bump the flash fade above tick_rate (it's the 4th arg to flash_new in apply_tick). Easy change if the pulse feels too abrupt.

This is good. I think beams are fine-ish for now, more details will probably be decided on an individual ability basis. Let's move on to the next general thing, which is?

Per the port order in attack-template/.claude/CLAUDE.md, the carriers done are: projectile ✅, area ✅ (instant + DoT), beam ✅ (instant + persistent). Next on the list:

4. dash.lua — the movement-ability carrier. v1's dash_clone, shared by dash_strike / asal / flicker_strike. It's the "blink/dash through enemies" attack: the player rapidly relocates along a path, leaving a trail of fading clone silhouettes, with a delayed "anime hit" — damage resolves a beat after the visual lands. Bezier hopping for the arc. See findings.md §7.

After dash, the remaining ones are:

• 5. polygonal.lua — big_rock_effect: parabolic-flight rock throw that shatters into Box2D fragments on landing.
• 6. railgun.lua / psylance.lua / construct.lua — bespoke single-purpose carriers, saved for last.

So the next general thing is dash. It's a different shape of carrier from the three so far — it moves the caster rather than spawning a projectile/area/line, which makes it the interesting one architecturally.

Want to go with dash next? If so I'll read findings.md §7 + the v1 dash_clone source and come back with a scope proposal (same as how beam/area were kicked off). Or if you'd rather slot in something else, say the word.

We don't actually want any dash logic on the player necessarily, we just want the visuals for the dash, which are a good general way of doing lines. We want to copy specifically the visuals from the Flicker Strike ability and the way it draws its path and does its effects as it hits enemies. Everything there should be the same. The player doesn't need to be involved. We want: line that gets drawn and follows the caster like the flicker strike line does; effects when the caster hits each of the enemies.

Try to parse all this out and tell your plan of implementation to me. Remember that we want this generalized, that's the goal.

Let me read the v1 Flicker Strike source and the findings before planning.

372  5. Camera shake (push by throw direction + 8 magnitude + shake(5, 0.2)).
373 6. `area_sound` (fissure_cast_2) + random `explosion_flesh_1/3/4`.
374 
375 The shatter algorithm is bespoke and pretty pretty — worth preserving as-is.
376 
377 ---
378 
379 ## 7. Movement abilities
380 
381 All three (`dash_strike`, `asal`, `flicker_strike`) share infrastructure via `dash_clone` (line 12124) — clones perform the same animation/damage path as the player, plus the player-owned dash has its own update logic in `orb:activate`.
382 
383 ### Shared bits
384 
385 - **Charge UI** (asal, railgun): ring of arc segments around source, growing as `charge_t` from 0 to 1. Converging hit_particles at `30-60` unit radius traveling inward. `charging_loop` sfx looped.
386 - **Trail** (line 579, `trail_update` + `trail_draw`): record point if moved >2 units since last, expire after `trail_duration`. Drawn as dashed line (5/6 stride) with alpha fading from 1.0 at 0-50% age to 0 at 100%. Used by dash_clone for `flicker` and `dash_strike` modes, also player movement.
387 - **Wall raycast** (line 2330 et al.): before each frame's lerp, raycast from current to target. If hit, stop at `hit.point + normal*4`.
388 - **Per-clone movement modifiers**: `m_nova/m_spread/m_back/m_sides/m_parallel` spawn additional `dash_clone` instances at offset angles. The primary direction is the player; clones do the work in parallel.
389 - **Multistrike**: each hit also damages up to `multistrike - 1` extra enemies within 40 units of the primary target.
390 - **Melee splash**: spawns a small 16-radius `area` at each hit target.
391 
392 ### `dash_strike` (line 2320)
393 
394 1. Lerp player from `from` to `to` over `dash_lerp_time = 0.06s` along `dash_r`.
395 2. Each frame during lerp, collect enemies within `hit_radius=16` into `hit_list`.
396 3. On lerp complete:
397    - Schedule each enemy's "anime hit" with progressive delay (`hit_delay_start = 0.04`, increment `hit_delay_per = 0.02` per enemy).
398    - Each scheduled hit: damage (+ multistrike), `fx_effect('fx_energy_122', s=1.0, speed=0.06)`, hit_circle(r=10, dur=0.2), hit_effect, 4 hit_particles in cone, knockback, `sword_slash_<1-4>` sfx random pitch.
399    - After all hits: `hit_stop(0.06)` + camera_shake(6, 0.2).
400 4. `ability_echo` mod repeats the dash N-1 times.
401 5. `ability_copy` queues other orbs' dashes.
... [20 more lines]

903:  flicker_strike = {
906:    carrier = 'flicker',
910:    flicker_range = 120,
911:    flicker_delay = 0.05,
913:    flicker_charges = 10,
916:  dash_strike = {
919:    carrier = 'dash_strike',
1090:  'beam', 'deploy', 'cyclone', 'asal', 'flicker_strike', 'dash_strike',
2320:    if def and def.activation == 'manual' and def.carrier == 'dash_strike' then
2323:      if self.dash_strike_lerping then
2324:        self.dash_strike_lerp_t = self.dash_strike_lerp_t + dt
2325:        local t = math.min(self.dash_strike_lerp_t/def.dash_lerp_time, 1)
2326:        local px = self.dash_strike_from_x + (self.dash_strike_to_x - self.dash_strike_from_x)*t
2327:        local py = self.dash_strike_from_y + (self.dash_strike_to_y - self.dash_strike_from_y)*t
2329:        if not self.dash_strike_is_null then
2336:            self.dash_strike_lerp_t = def.dash_lerp_time
2339:        if self.dash_strike_is_null then
2347:          p1.r = self.dash_strike_r
2350:        local src = self.dash_strike_is_null and self or p1
2352:          if not e.dead and not self.dash_strike_hit_set[e] then
2355:              self.dash_strike_hit_set[e] = true
2356:              table.insert(self.dash_strike_hit_list, e)
2362:          self.dash_strike_lerping = false
2363:          local has_echo = self.dash_strike_mods and self.dash_strike_mods.ability_echo and self.dash_strike_mods.ability_echo >= 2
2364:          if self.dash_strike_is_null then
2369:            local unstop = self.dash_strike_mods and self.dash_strike_mods.unstoppable
2371:              p1.dash_strike_active = false
2379:          local dash_mods = self.dash_strike_mods
2380:          for i, e in ipairs(self.dash_strike_hit_list) do
2383:                local hit_r = self.dash_strike_r + math.pi
... [22 more lines]

418  ### `flicker_strike` (line 4450, also `dash_clone` `mode='flicker'`)
419 
420 1. Hold input. Find target (first jump: closest to mouse; subsequent: random enemy ≥40 units from previous target).
421 2. Build cubic bezier from source→target with control points at 80% along entry/exit angles. Lerp over `flicker_delay=0.05s`.
422 3. On arrival, damage target (+ multistrike + zag particles where direction snaps). `slash_hit` + `sword_slash_*`. Camera shake 4. Knockback. Optional melee_splash.
423 4. Decrement `flicker_charges`. Continue chain until 0 charges or no more targets.
424 5. Last charge: AoE knockback (radius=area_radius*3, force 10, dur 0.4) + `slash_final` + `hit_stop(0.08)` + camera shake 8.
425 6. `ability_echo`: 0.3s pause, then restart with full charges.
426 
427 ---
428 
429 ## 8. Effect primitive library
430 
431 Standalone reusable objects (lines 10465-12450). All track `edition` for shader application + `flashing` for white-flash override.
432 
433 | Effect | Lines | Used by | Behavior |
434 |---|---|---|---|
435 | `hit_circle` | 10465 | Everything | Filled circle that shrinks to 0 over `duration` (cubic_in_out). Optional `change_color(fraction, color)` mid-animation. Optional `follow` entity. |
436 | `hit_particle` | 10493 | Everything | Velocity-proportional rounded rect that flies outward (sine_in_out shrink to 2px size at duration end). Optional `spin`, `zigzag` (alternates ±π/4 every `zigzag_leg`), `zag` (single direction change after `zag_dist`), `force_angle/strength` (steer toward angle). |
437 | `hit_effect` | 10577 | Everything | Spritesheet `hit1.png` animation, frame rate 0.06s. Auto-kills on completion. |
438 | `fx_effect` | 10601 | dash_strike, asal, etc. | General spritesheet animation effect by name (`fx_energy_122`, `fx_sparks_032`, etc.) with `s, r, speed, color, flash`. |
439 | `lightning_line` | 10633 | arc | Midpoint-displacement jagged line, regenerates every 2 frames for crackling. 3 generations, max_offset=8. Blinks 3x after duration. |
440 | `cyclone_particle` | 10712 | cyclone | Arc segment orbiting a `follow` center. Shrinks to 0 length over duration. |
441 | `beam_particle` | 11967 | asal impact, railgun echo | Rectangle traveling along `beam_r`. Shrinks w/h to 1, speed to 0.3x, sine_in. Optional `wobble` (sine oscillation of beam_r). |
442 | `slightly_jagged_line` | 12012 | Activation, orb-to-player line for every hold ability | Straight dashed line src→dst, progressive draw, src_color→dst_color gradient. Holds after anim, then blinks 3x. Dst-edge-point clipping. |
443 | `arc_trail_line` | 11945 | (unused in shipped abilities; in codebase) | Static rounded rect that shrinks `h` to 0 over duration. |
444 | `wall_arrow` | 10428 | All arrow-type projectiles | Stuck rounded-rect at wall hit. Random delay 0.8-2s before blinking out (every 0.05s for 7 ticks). |
445 | `railgun_flash` | 11824 | railgun | Dashed line with clumped (2-4 segs each) bidirectional shrink. Each clump's `visible_start/visible_end` tween toward midpoint with staggered delays. Supports curved `path` (with cumulative distance lookup) or straight (`r + length`). |
446 | `psylance_effect` | 10936 | psylance | Two-phase: gather (pulls enemies onto line, draws two side-dashes fading from 255 to 40 alpha) → damage (extends line + dashed center stroke with side-shake). |
447 | `big_rock_effect` | 11390 | big_rock | See section 6. |

12124    -- Movement clone: temporary entity that performs a dash_strike in a given direction
12125   dash_clone = object:extend()
12126   function dash_clone:new(x, y, args)
12127     object.new(self)
12128     self.x, self.y = x, y
12129     self.r = args.r
12130     self.def = args.def
12131     self.mods = args.mods or {}
12132     self.color = args.color or blue
12133     self.edition = args.edition or 0
12134     self.w, self.h = 10, 10
12135     self.dash_r = args.r
12136     if args.mode ~= 'flicker' then
12137       local dash_dist = args.dash_dist or self.def.dash_range
12138       self.from_x, self.from_y = x, y
12139       self.to_x = x + dash_dist*math.cos(self.dash_r)
12140       self.to_y = y + dash_dist*math.sin(self.dash_r)
12141     end
12142     self.lerp_t = 0
12143     self.lerping = args.mode ~= 'flicker'
12144     self.hit_set = {}
12145     self.hit_list = {}
12146     self.resolving = false
12147     self.alpha = 255
12148     self.mode = args.mode or 'dash_strike'  -- 'dash_strike', 'asal', or 'flicker'
12149     self.asal_hit = nil
12150     self.charge_mult = args.charge_mult or 1
12151     self.cast_log = args.cast_log
12152     if self.cast_log then self.cast_log:add_pending() end
12153     self.trail = {}
... [190 more lines]

  end
end

-- Shared trail system: update trail points and draw as dashed lines
function trail_update(trail, x, y, active, trail_duration)
  -- Add point if active and moved enough
  if active then
    local last = trail[#trail]
    if not last or math.distance(last.x, last.y, x, y) > 2 then
      table.insert(trail, {x = x, y = y, t = an.time})
    end
  end
  -- Expire old points
  while #trail > 0 and an.time - trail[1].t > trail_duration do
    table.remove(trail, 1)
  end
end

function trail_draw(trail, trail_duration, trail_base_color)
  if #trail < 2 then return end
  local dash_len = 5
  local gap_len = 6
  local stride = dash_len + gap_len
  local cum_dist = {[#trail] = 0}
  for i = #trail - 1, 1, -1 do
    local dx = trail[i + 1].x - trail[i].x
    local dy = trail[i + 1].y - trail[i].y
    cum_dist[i] = cum_dist[i + 1] + math.sqrt(dx*dx + dy*dy)
  end
  local total_dist = cum_dist[1]
... [36 more lines]

        trail_color.a = 255
      else
        trail_color.a = math.remap(t, 0.5, 1, 255, 0)
      end
      local sx, sy = trail_pos(dash_start)
      local ex, ey = trail_pos(dash_end)
      ability_layer:line(sx, sy, ex, ey, 2, trail_color())
    end
    d = d + stride
  end
end

-- Point-in-polygon test (ray casting algorithm)
function point_in_polygon(px, py, verts, cx, cy)
  local inside = false
  local n = #verts
  local j = n
  for i = 1, n do
    local xi, yi = cx + verts[i].wx, cy + verts[i].wy
    local xj, yj = cx + verts[j].wx, cy + verts[j].wy
    if (yi > py) ~= (yj > py) and px < (xj - xi)*(py - yi)/(yj - yi) + xi then
      inside = not inside
    end
    j = i
  end
  return inside

No matches found

12344          end
12345         -- Asal dash complete
12346         if t >= 1 then
12347           self.lerping = false
12348           self.resolving = true
12349         end
12350       else
12351         -- Dash strike: track enemies along path
12352         for _, e in ipairs(cached_enemies) do
12353           if not e.dead and not self.hit_set[e] then
12354             local d = math.distance(self.x, self.y, e.x, e.y)
12355             if d < self.def.hit_radius then
12356               self.hit_set[e] = true
12357               table.insert(self.hit_list, e)
12358             end
12359           end
12360         end
12361         -- Dash complete
12362         if t >= 1 then
12363           self.lerping = false

I've read v1's dash_clone flicker mode (lines 12124–12316), the shared trail system (lines 578–650), and findings.md §7. Here's what's actually there and my plan.

What v1's Flicker Strike visual is

The dash_clone in mode='flicker' is a self-contained moving entity. It is not the player — it's a separate thing that:

1. Finds an initial target — closest enemy within flicker_range (120) inside a ±60° cone of the spawn aim direction. No target → fizzle.
2. Hops via cubic bezier — builds a curve from current position to a point 12 units shy of the target. Control points sit 80% along the entry angle (from source) and exit angle (toward the next target, so the curve pre-bends toward where it's going next). Lerps the hop over flicker_delay (0.05s — very fast).
3. On arrival, hits the target — take_damage, hit_circle (r10, white→edition-color at 0.5), hit_effect sprite, 3 cone particles (vel 200–400, dur 0.3–0.5, w 10–16 / h 2, color-bleed at 0.66), camera shake (2, 0.1).
4. Picks the next target — a random enemy ≥40 units from the one just hit (falls back to any enemy). Hops again.
5. Repeats until flicker_charges (10) run out or no targets remain.
6. Leaves a trail — every >2 units of movement records a point; points live trail_duration (0.8s). Drawn as a dashed polyline (5-long/6-gap, 2px) with per-dash alpha: full for the first 50% of a point's age, fading 255→0 over the rest. The moving body itself draws as a 10×10 spring-scaled rounded rect.
7. Self-destructs once it's done and the trail has fully faded.

Per-hop there's also a small departure hit_circle (r8) + directional shake push 3. Note: the dash_clone flicker block has no sounds — the slash SFX in findings.md belong to the player-owned flicker_strike activation path, not this. So no sound assets to port.

Plan: flicker.lua carrier

A new carrier entity — a sibling to projectile/area/beam — that is the moving thing. "Caster" = the carrier entity itself; the player only supplies a spawn position, an aim direction, and an edition tint, then is uninvolved.

Module-local helpers (kept in flicker.lua, self-contained):

• cubic_bezier(t, p0…p3) — standard cubic bezier; not in attack-template's math lib, so ported here.
• trail_update(trail, x, y, active, duration) — verbatim from v1 line 578.
• trail_draw(layer, trail, duration, color) — verbatim from v1 line 591, with ability_layer → passed layer and an.time → global time.

flicker class:

• flicker:new(x, y, args) — stores damage/color/edition/charges/range/hop_delay/trail_duration; finds the initial target in the aim cone; start_hop or mark done.
• flicker:start_hop(target) — builds the bezier (entry/exit control points), departure hit_circle + shake.
• flicker:find_next(exclude) — random 'enemy'-tagged entity ≥40 units from exclude (via query_entities_circle with a wide radius).
• flicker:update(dt) — trail_update; advance the bezier lerp; on arrival → hit_target + decrement charges + next hop or done; self-destruct when done + trail empty.
• flicker:hit_target(target) — the exact per-enemy FX package above.
• flicker:draw(layer) — trail_draw + the spring-scaled body rect (fading after done, per v1).
• spawn_flicker(caster, opts) — derives aim_r from caster→mouse, spawns at caster position with caster edition.

Generalized knobs (opt overrides, defaults = v1 values): damage, charges (10), range (120), hop_delay (0.05), trail_duration (0.8), color, edition. Deep-magic numbers (±60° cone, 12-unit target offset, 80% control points, 40-unit retarget distance, 2px trail width, 5/6 dash stride) stay hardcoded — they are the flicker look.

Not ported (gameplay-side, per the template's no-modifier rule): multistrike, melee_splash, knockback, ability_echo/copy, cast_log, the dash_strike/asal modes, any player movement.

main.lua wiring: flickers = {} list, update/draw loops alongside the other carriers (drawn on game_layer; its hit FX land on effects_layer via the shared spawn_* helpers), plus a demo fire key.

Before I write it, four decisions:

User has answered your questions: "What should the carrier file/class be named?"="flicker.lua / flicker (Recommended)", "How should the demo trigger the flicker?"="F key (Recommended)", "Should the moving body (the 10x10 rect) be drawn?"="Yes — draw it (Recommended)", "When the flicker runs out of charges before exhausting enemies, what stops it?"="No concept of charges or anything like that, just make the number of enemies hit a variable that I can change manually.". You can now continue with the user's answers in mind.

Plan approved. The hits count replaces v1's "charges" — a plain tunable (no charge mechanics, no last-charge AoE; the dash_clone flicker mode doesn't have those anyway). Here's the full flicker.lua and the main.lua diffs.

New file attack-template/flicker.lua

--[[
  flicker.lua — flicker-strike line/trail carrier (v1 dash_clone flicker mode).

  A self-contained moving entity. NOT the player — the caster only
  supplies a spawn position, an aim direction, and an edition tint;
  after that the flicker is autonomous. It hops between enemies along
  cubic-bezier curves, leaving a fading dashed trail and spawning hit
  FX at each enemy it reaches. Port of v1's dash_clone (line 12124) in
  mode='flicker' — visuals only, no player movement, no modifiers.

  Lifecycle:
    1. Find an initial target: closest enemy within `range` inside a
       ±60° cone of the spawn aim. No target → fizzle.
    2. Hop to it via a cubic bezier (control points 80% along the
       entry/exit angles; exit angle pre-bends toward the next target),
       lerped over `hop_delay`.
    3. On arrival: damage the target + hit FX. Pick the next target
       (random enemy ≥40 units away), hop again.
    4. After `hits` enemies have been struck, stop. The trail fades
       out over `trail_duration`; the entity self-destructs once the
       trail is empty.

  Caller API:
    spawn_flicker(caster, {
      aim_r,           -- optional, default: caster → main_camera.mouse
      damage,          -- per-hit damage, default 2
      hits,            -- number of enemies struck before stopping, default 5
      range,           -- initial-target search radius, default 120
      hop_delay,       -- seconds per bezier hop, default 0.05
      trail_duration,  -- trail point lifetime, default 0.8
      color,           -- default red
      edition,         -- default caster.edition
    })
]]


flickers = {}


-- Standard cubic bezier. Not in attack-template's math lib, so local.
local function cubic_bezier(t, p0x, p0y, p1x, p1y, p2x, p2y, p3x, p3y)
  local u = 1 - t
  local uu, tt   = u*u, t*t
  local uuu, ttt = uu*u, tt*t
  return uuu*p0x + 3*uu*t*p1x + 3*u*tt*p2x + ttt*p3x,
         uuu*p0y + 3*uu*t*p1y + 3*u*tt*p2y + ttt*p3y
end


-- Shared trail system, ported verbatim from v1 (lines 578-650). Records
-- a point whenever the entity has moved >2 units; points expire after
-- `duration`. an.time → global `time`.
local function trail_update(trail, x, y, active, duration)
  if active then
    local last = trail[#trail]
    if not last or math.length(x - last.x, y - last.y) > 2 then
      trail[#trail + 1] = {x = x, y = y, t = time}
    end
  end
  while #trail > 0 and time - trail[1].t > duration do
    table.remove(trail, 1)
  end
end


-- Draws the trail as a dashed polyline (5-long / 6-gap, 2px). Per-dash
-- alpha: full for the first 50% of the dash's age, fading 255→0 after.
local function trail_draw(layer, trail, duration, base_color)
  if #trail < 2 then return end
  local dash_len, gap_len = 5, 6
  local stride = dash_len + gap_len
  -- cum_dist[i] = distance from point i forward to the last point.
  local cum_dist = {[#trail] = 0}
  for i = #trail - 1, 1, -1 do
    local dx = trail[i+1].x - trail[i].x
    local dy = trail[i+1].y - trail[i].y
    cum_dist[i] = cum_dist[i+1] + math.length(dx, dy)
  end
  local total_dist = cum_dist[1]
  local function trail_pos(dist)
    for i = #trail - 1, 1, -1 do
      if cum_dist[i] >= dist then
        local seg_len = cum_dist[i] - cum_dist[i+1]
        if seg_len < 0.01 then return trail[i].x, trail[i].y end
        local t = (dist - cum_dist[i+1])/seg_len
        return trail[i+1].x + t*(trail[i].x - trail[i+1].x),
               trail[i+1].y + t*(trail[i].y - trail[i+1].y)
      end
    end
    return trail[1].x, trail[1].y
  end
  local c = color_clone(base_color)
  local d = 0
  while d < total_dist do
    local dash_start = d
    local dash_end = math.min(d + dash_len, total_dist)
    if dash_end - dash_start > 0.5 then
      local mid = (dash_start + dash_end)/2
      local age = 0
      for i = #trail - 1, 1, -1 do
        if cum_dist[i] >= mid then
          local seg_len = cum_dist[i] - cum_dist[i+1]
          if seg_len > 0.01 then
            local t = (mid - cum_dist[i+1])/seg_len
            age = time - (trail[i+1].t + t*(trail[i].t - trail[i+1].t))
          else
            age = time - trail[i].t
          end
          break
        end
      end
      local ft = age/duration
      if ft < 0.5 then c.a = 255 else c.a = math.remap(ft, 0.5, 1, 255, 0) end
      local sx, sy = trail_pos(dash_start)
      local ex, ey = trail_pos(dash_end)
      layer_line(layer, sx, sy, ex, ey, 2, c())
    end
    d = d + stride
  end
end


flicker = class()


function flicker:new(x, y, args)
  args = args or {}
  self.x, self.y = x, y
  self.r = args.r or 0
  self.w, self.h = 10, 10
  self.damage   = args.damage or 2
  self.color    = args.color and color_clone(args.color) or color_clone(red)
  self.edition  = args.edition or 0
  self.hits     = args.hits or 5
  self.range    = args.range or 120
  self.hop_delay = args.hop_delay or 0.05
  self.trail_duration = args.trail_duration or 0.8

  self.trail = {}
  self.hop_lerping = false
  self.done = false
  self.hits_done = 0

  make_entity(self)
  self.timer  = timer_new()
  self.spring = spring_new()
  spring_pull(self.spring, 'main', 0.5)

  -- Initial target: closest enemy within range, inside a ±60° cone of
  -- the spawn aim. No target in that cone → fizzle (done immediately).
  local best, best_d = nil, math.huge
  local nearby = query_entities_circle(self.x, self.y, self.range, {'enemy'})
  for _, e in ipairs(nearby or {}) do
    if not e._dead then
      local d = math.length(e.x - self.x, e.y - self.y)
      local a = math.atan(e.y - self.y, e.x - self.x)
      local diff = math.abs(math.atan(math.sin(self.r - a), math.cos(self.r - a)))
      if d < best_d and diff < math.pi/3 then
        best, best_d = e, d
      end
    end
  end
  if best then
    self:start_hop(best)
  else
    self.done = true
  end
end


-- Pick a next target: a random 'enemy' at least 40 units from (x,y),
-- excluding `exclude_id`. Falls back to any enemy if none is that far.
function flicker:find_next(x, y, exclude_id)
  local all = query_entities_circle(x, y, 9999, {'enemy'})
  local far, any = {}, {}
  for _, e in ipairs(all or {}) do
    if not e._dead and e.id ~= exclude_id then
      any[#any + 1] = e
      if math.length(e.x - x, e.y - y) >= 40 then
        far[#far + 1] = e
      end
    end
  end
  if #far > 0 then return far[random_int(1, #far)] end
  if #any > 0 then return any[random_int(1, #any)] end
  return nil
end


-- Build the cubic bezier for a hop toward `target`. Control points sit
-- 80% along the entry angle (from current pos) and exit angle (toward
-- the tentative next target, so the curve pre-bends where it's going).
function flicker:start_hop(target)
  self.target_id = target.id
  local next_target = self:find_next(target.x, target.y, target.id)
  -- Aim point: 12 units shy of the target, on the approach side.
  local offset_r = math.atan(self.y - target.y, self.x - target.x)
  local tx = target.x + 12*math.cos(offset_r)
  local ty = target.y + 12*math.sin(offset_r)
  local dist = math.length(tx - self.x, ty - self.y)
  local entry_r = math.atan(ty - self.y, tx - self.x)
  local exit_r  = next_target
    and math.atan(next_target.y - ty, next_target.x - tx) or entry_r
  self.p0x, self.p0y = self.x, self.y
  self.p1x = self.x + dist*0.8*math.cos(entry_r)
  self.p1y = self.y + dist*0.8*math.sin(entry_r)
  self.p2x = tx - dist*0.8*math.cos(exit_r)
  self.p2y = ty - dist*0.8*math.sin(exit_r)
  self.p3x, self.p3y = tx, ty
  self.hop_t = 0
  self.hop_lerping = true
  spawn_hit_circle(self.x, self.y, {radius = 8, duration = 0.15})
  shake_push(main_camera.shake, entry_r, 3)
end


-- Per-enemy hit FX (v1 lines 12264-12284): damage, white→edition-color
-- hit_circle, hit_effect sprite, 3 streak particles in the travel
-- direction.
function flicker:hit_target(target)
  local pc = edition_base_color(self.edition) or self.color
  target:hit(self.damage)
  local attack_r = math.atan(self.y - self.p0y, self.x - self.p0x)
  spawn_hit_circle(target.x, target.y, {radius = 10, duration = 0.2}):change_color(0.5, pc)
  spawn_hit_effect(target.x, target.y)
  for i = 1, 3 do
    spawn_particle(target.x, target.y, {
      angle    = attack_r + random_float(-math.pi/6, math.pi/6),
      velocity = random_float(200, 400),
      duration = random_float(0.3, 0.5),
      w        = random_float(10, 16),
      h        = 2,
    }):change_color(0.66, pc)
  end
end


function flicker:update(dt)
  timer_update(self.timer, dt)
  spring_update(self.spring, dt)
  trail_update(self.trail, self.x, self.y, self.hop_lerping, self.trail_duration)

  -- Self-destruct once done and the trail has fully faded.
  if self.done and #self.trail == 0 then
    entity_kill(self)
    return
  end

  if self.hop_lerping then
    self.hop_t = self.hop_t + dt
    local t = math.min(self.hop_t/self.hop_delay, 1)
    self.x, self.y = cubic_bezier(t,
      self.p0x, self.p0y, self.p1x, self.p1y,
      self.p2x, self.p2y, self.p3x, self.p3y)
    if t >= 1 then
      self.hop_lerping = false
      local target = entities[self.target_id]
      if target and not target._dead then
        self:hit_target(target)
      end
      shake_trauma(main_camera.shake, 2, 0.1)
      self.hits_done = self.hits_done + 1
      if self.hits_done >= self.hits then
        self.done = true
      else
        local fx = target and target.x or self.x
        local fy = target and target.y or self.y
        local next_target = self:find_next(fx, fy, self.target_id)
        if next_target then
          self:start_hop(next_target)
        else
          self.done = true
        end
      end
    end
  end
end


function flicker:destroy() end


function flicker:draw(layer)
  set_edition(layer, self.edition)
  trail_draw(layer, self.trail, self.trail_duration, self.color)
  if not self.done then
    local s = self.spring.main.x
    layer_push(layer, self.x, self.y, self.r, s, s)
    layer_rounded_rectangle(layer, -self.w/2, -self.h/2, self.w, self.h, 3, self.color())
    layer_pop(layer)
  elseif #self.trail > 0 then
    -- After the hops finish, the body lingers, fading with the oldest
    -- trail point (v1 lines 12306-12314).
    local c = color_clone(self.color)
    local ft = (time - self.trail[1].t)/self.trail_duration
    if ft < 0.5 then c.a = 255 else c.a = math.remap(ft, 0.5, 1, 255, 0) end
    layer_push(layer, self.x, self.y, self.r, 1, 1)
    layer_rounded_rectangle(layer, -self.w/2, -self.h/2, self.w, self.h, 3, c())
    layer_pop(layer)
  end
  set_edition(layer, 0)
end


function spawn_flicker(caster, opts)
  opts = opts or {}
  local aim_r = opts.aim_r or math.angle_to_point(caster.x, caster.y,
                                                  main_camera.mouse.x,
                                                  main_camera.mouse.y)
  local f = flicker(caster.x, caster.y, {
    r       = aim_r,
    damage  = opts.damage,
    color   = opts.color,
    edition = opts.edition or caster.edition,
    hits    = opts.hits,
    range   = opts.range,
    hop_delay      = opts.hop_delay,
    trail_duration = opts.trail_duration,
  })
  flickers[#flickers + 1] = f
  return f
end

main.lua diffs

Require (after require('beam')): lua require('beam') require('flicker')

Config var (with the other current_beam_* state): lua -- Number of enemies a flicker strikes before stopping. Plain tunable — -- edit and relaunch. No charge mechanics; just a hop count. flicker_hit_count = 5

Bind (with the other beam binds): lua bind('spawn_pack', 'key:l') bind('fire_flicker', 'key:f')

Fire handler (after the beam fire block): lua -- Flicker: spawns an autonomous hopping entity that chains between -- enemies leaving a trail. Player is just the spawn point + aim. if is_pressed('fire_flicker') and not p._dead then spawn_flicker(p, { damage = 2, hits = flicker_hit_count, }) end

Update loop (after the beams update loop): lua for i = #flickers, 1, -1 do local f = flickers[i] if f._dead then table.remove(flickers, i) else f:update(dt) end end

Draw loop (after the beams draw loop, on game_layer): lua for _, b in ipairs(beams) do b:draw(game_layer) end for _, f in ipairs(flickers) do f:draw(game_layer) end

Notes

• No caster juice — dash_clone:new (flicker mode) doesn't touch the player; per-hop hit_circle + shake live in start_hop. Matches "player not involved."
• self.r (body rotation) stays at the spawn aim throughout — v1 never updates it (the body's a 10×10 square, rotation barely reads).
• Trail + hit FX use the shared spawn_* helpers, so they land on effects_layer above the carriers, consistent with everything else.
• hits revisits enemies if there are fewer than hits of them (v1 behavior) — set flicker_hit_count to your enemy count if you want each-once.

Apply?

Go ahead.

File created successfully at: E:\a327ex\attack-template\flicker.lua (file state is current in your context — no need to Read it back)

Now the main.lua edits.

The file E:\a327ex\attack-template\main.lua has been updated successfully. (file state is current in your context — no need to Read it back)

The file E:\a327ex\attack-template\main.lua has been updated successfully. (file state is current in your context — no need to Read it back)

The file E:\a327ex\attack-template\main.lua has been updated successfully. (file state is current in your context — no need to Read it back)

The file E:\a327ex\attack-template\main.lua has been updated successfully. (file state is current in your context — no need to Read it back)

The file E:\a327ex\attack-template\main.lua has been updated successfully. (file state is current in your context — no need to Read it back)

The file E:\a327ex\attack-template\main.lua has been updated successfully. (file state is current in your context — no need to Read it back)

flicker.lua: ok
main.lua: ok

Both parse clean. Everything's wired:

• flicker.lua — new carrier. Autonomous hopping entity: finds initial target in a ±60° cone within range, bezier-hops between enemies, hits each with the v1 FX package, leaves a fading dashed trail, self-destructs after the trail fades.
• main.lua — require('flicker'), F key bind, flicker_hit_count = 5 config var, fire handler, update + draw loops.

Test plan

1. ./run.bat
2. Aim toward a seeker and press F — a small rounded-rect body should appear and zip between seekers along curved bezier hops, dashed trail tracing the path.
3. Each enemy it reaches should flash (hit_circle white→edition-color), spawn a sprite burst + 3 streak particles, and take 2 damage.
4. After 5 hits (the flicker_hit_count), it stops; the trail fades over ~0.8s, then the body fades and vanishes.
5. Press L to spawn a pack near the wall, then F toward it — flicker chains through the cluster.
6. Fire F into empty space (no enemy in the aim cone within 120 units) — nothing happens (fizzle).
7. With few seekers alive (< 5), the flicker revisits enemies to reach its 5 hits.
8. Cycle the player edition (0/F1) and fire — trail, body, and hit particles should all pick up the edition tint.

To tune: flicker_hit_count in main.lua (number of enemies struck). Deeper knobs (range, hop_delay, trail_duration, damage) are opts on spawn_flicker if you want to expose them.

Let's port the effects and everything else exactly as it was in the original, including the sounds. Just port the original .ogg sounds and not the lightmed ones. Effects should also be the same. This effect uses one additional animated effect too if I remember correctly. Make sure that everything is the same juice-wise.

4450     elseif def and def.activation == 'hold' and def.carrier == 'flicker' then
4451          local mods = p1:get_mods()
4452          if not self.flicker_cooldown then self.flicker_cooldown = 0 end
4453          self.flicker_cooldown = math.max(self.flicker_cooldown - dt, 0)
4454          if orb_input_down(self.slot) and self.flicker_cooldown <= 0 then
4455            if not self.flicker_active then
4456              self.flicker_active = true
4457              self.flicker_cast_log = damage_cast_log.new(ability_name, def.element)
4458              self.flicker_cast_log.meta.strikes = 0
4459              self.flicker_cast_log:add_pending()
4460              -- Collect mods (player + orb slots)
4461              self.flicker_mods = p1:get_mods()
4462              for _, s in ipairs(self.slots) do
4463                if s.type == 'modifier' then self.flicker_mods[s.name] = s.value end
4464              end
4465              self.flicker_is_null = ability_has_tag('flicker_strike', 'null') or self.flicker_mods.null_conversion
4466              -- Base charges + chain/pierce bonuses
4467              local bonus_charges = 0
4468              for k, v in pairs(self.flicker_mods) do
4469                local chain_n = k:match('^chain%+(%d+)$')
4470                local pierce_n = k:match('^pierce%+(%d+)$')
4471                if chain_n then bonus_charges = bonus_charges + tonumber(chain_n) end
4472                if pierce_n then bonus_charges = bonus_charges + tonumber(pierce_n) end
4473              end
4474              self.flicker_charges = def.flicker_charges + bonus_charges
4475              self.flicker_timer = 0
4476              self.flicker_last_target = nil
4477              if self.flicker_is_null then
4478                self.null_move_active = true
4479              else
... [150 more lines]

4630                   end
4631                      an:add(fx_effect(e.x, e.y, {name = 'fx_energy_122', r = attack_r, s = 0.8, speed = 0.06}))
4632                      an:add(hit_circle(e.x, e.y, {radius = 10, duration = 0.2}):change_color(0.5, src_color:clone()))
4633                      local arrival_r = math.atan(self.flicker_p3y - self.flicker_p2y, self.flicker_p3x - self.flicker_p2x)
4634                      local zag_delta = math.atan(math.sin(arrival_r - attack_r), math.cos(arrival_r - attack_r))
4635                      for i = 1, 4 do
4636                        local spread = an.random:float(-math.pi/6, math.pi/6)
4637                        an:add(hit_particle(e.x, e.y, {
4638                          angle = attack_r + spread,
4639                          velocity = an.random:float(200, 400),
4640                          duration = an.random:float(0.3, 0.5),
4641                          w = an.random:float(10, 16),
4642                          h = 2,
4643                          zag = zag_delta*an.random:float(0.5, 1.0),
4644                          zag_dist = an.random:float(5, 12),
4645                        }):change_color(0.66, src_color:clone()))
4646                      end
4647                      -- Knockback modifier
4648                      if self.flicker_mods then apply_knockback_mod(self.flicker_mods, e, src.x, src.y) end
4649                      -- Melee splash: spawn area at each hit target
4650                      if self.flicker_mods and self.flicker_mods.melee_splash then
4651                        an:add(area(e.x, e.y, {
4652                          ability = 'flicker_strike', color = src_color, mods = self.flicker_mods, radius = 16, edition = orb_ed, cast_log = self.flicker_cast_log,
4653                        }))
4654                      end
4655                    end
4656                  end
4657                  sfx('slash_hit', volumes.slash_hit, an.random:float(0.95, 1.05))
4658                  sfx('sword_slash_' .. an.random:int(1, 4), volumes.sword_slash, an.random:float(0.95, 1.05))
4659                  an.camera.shake:shake(4, 0.1)
... [120 more lines]

903    flicker_strike = {
904     activation = 'hold',
905     tags = {'melee', 'movement', 'charges', 'strike'},
906     carrier = 'flicker',
907     color = yellow,
908     damage = 4,
909     area_radius = 16,
910     flicker_range = 120,
911     flicker_delay = 0.05,
912     cooldown = 2,
913     flicker_charges = 10,
914     trigger_rate = 2,
915   },
916   dash_strike = {
917     activation = 'manual',
918     tags = {'melee', 'movement', 'strike'},

10601    fx_effect = object:extend()
10602   function fx_effect:new(x, y, args)
10603     object.new(self)
10604     self.x, self.y = x, y
10605     args = args or {}
10606     self.s = args.s or 1
10607     self.sx = args.sx or self.s
10608     self.sy = args.sy or self.s
10609     self.r = args.r or 0
10610     self.fx_name = args.name or 'hit1'
10611     self.draw_color = args.color
10612     self.flash = args.flash
10613     self.follow = args.follow
10614     self:add(animation(self.fx_name, args.speed or 0.05, 'once', {
10615       [0] = function() self:kill() end,
10616     }))
10617   end
10618   
10619   function fx_effect:update(dt)
10620     self[self.fx_name]:update(dt)
10621     local x = self.follow and self.follow.x or self.x
10622     local y = self.follow and self.follow.y or self.y
10623     local c = self.draw_color and self.draw_color() or nil
10624     effects:push(x, y, self.r, self.sx, self.sy)
10625     effects:animation(self[self.fx_name], 0, 0, c, self.flash)
10626     effects:pop()
10627   end
10628   
10629   
10630   -- Effect: lightning_line (SNKRX-style midpoint displacement)
... [2 more lines]

38:  sword_slash = 0.6,
39:  slash_hit = 0.3,
40:  slash_final = 0.336,
56:  wind_slash_hit = 0.5,
173:an:sound('sword_slash_1', 'assets/Sword_Slash_1_v1.ogg')
174:an:sound('sword_slash_2', 'assets/Sword_Slash_1_v2.ogg')
175:an:sound('sword_slash_3', 'assets/Sword_Slash_1_v3.ogg')
176:an:sound('sword_slash_4', 'assets/Sword_Slash_1_v4.ogg')
177:an:sound('slash_hit', 'assets/PM_GENERIC_Slash02.ogg')
178:an:sound('slash_final', 'assets/PM_GENERIC_Slash04_P2.ogg')
197:an:sound('wind_slash_hit', 'assets/RPG3_WindMagic_LightImpact01.ogg')
218:  slash_hit = 0.2,
537:  {'sword_slash_1', 'assets/Sword_Slash_1_v1'},
538:  {'sword_slash_2', 'assets/Sword_Slash_1_v2'},
539:  {'sword_slash_3', 'assets/Sword_Slash_1_v3'},
540:  {'sword_slash_4', 'assets/Sword_Slash_1_v4'},
541:  {'slash_hit', 'assets/PM_GENERIC_Slash02'},
542:  {'slash_final', 'assets/PM_GENERIC_Slash04_P2'},
555:  {'wind_slash_hit', 'assets/RPG3_WindMagic_LightImpact01'},
2405:                    an:add(fx_effect(t.x, t.y, {name = 'fx_energy_122', r = hit_r, s = 1.0, speed = 0.06}))
2430:                sfx('sword_slash_' .. an.random:int(1, 4), volumes.sword_slash, an.random:float(0.95, 1.05))
3029:        an:add(fx_effect(muzzle_x, muzzle_y, {name = 'fx_energy_122', r = base_r, s = 1, speed = 0.05}))
3228:          an:add(fx_effect(cx, cy, {name = 'fx_energy_122', r = punch_r, s = 2.5*mult, speed = 0.12, color = asal_null and purple or nil}))
4631:                  an:add(fx_effect(e.x, e.y, {name = 'fx_energy_122', r = attack_r, s = 0.8, speed = 0.06}))
4657:              sfx('slash_hit', volumes.slash_hit, an.random:float(0.95, 1.05))

[Showing results with pagination = limit: 25]

Found 2 files
attack-template\findings.md
attack-template\symbols.lua

Found 1 file
attack-template\anchor\init.lua

-rw-r--r-- 1 adn 197121  89309 Apr 15 21:47 PM_GENERIC_Slash02.ogg
-rw-r--r-- 1 adn 197121 868072 Apr 15 21:47 PM_GENERIC_Slash02.wav
-rw-r--r-- 1 adn 197121  90912 Apr 15 21:47 PM_GENERIC_Slash04_P2.ogg
-rw-r--r-- 1 adn 197121 783020 Apr 15 21:47 PM_GENERIC_Slash04_P2.wav
-rw-r--r-- 1 adn 197121  40896 Apr 15 21:47 Sword_Slash_1_v1.ogg
-rw-r--r-- 1 adn 197121  32277 Apr 15 21:47 Sword_Slash_1_v2.ogg
-rw-r--r-- 1 adn 197121  33847 Apr 15 21:47 Sword_Slash_1_v3.ogg
-rw-r--r-- 1 adn 197121  34167 Apr 15 21:47 Sword_Slash_1_v4.ogg
-rw-r--r-- 1 adn 197121   2209 Apr 15 21:47 fx_energy_122.png

2405:                    an:add(fx_effect(t.x, t.y, {name = 'fx_energy_122', r = hit_r, s = 1.0, speed = 0.06}))
2435:          -- Final hit_stop after last hit + ability echo
2439:              an:hit_stop(0.06)
3015:        an:hit_stop(0.06)
3029:        an:add(fx_effect(muzzle_x, muzzle_y, {name = 'fx_energy_122', r = base_r, s = 1, speed = 0.05}))
3228:          an:add(fx_effect(cx, cy, {name = 'fx_energy_122', r = punch_r, s = 2.5*mult, speed = 0.12, color = asal_null and purple or nil}))
3274:          an:hit_stop(0.15)
3283:          an.time_scale = 0.15

[Showing results with pagination = limit: 8]

96:  dt (e.g. during hitstop / slow-mo), compute `dt * time_scale` locally,
114:  set_time_scale(scale)
116:  Use unscaled_dt for things that should ignore slow-mo (UI, etc.).
118:function set_time_scale(s)
119:  time_scale = s
120:  engine_set_time_scale(s)
157:  time_scale = 1.0

2405:                    an:add(fx_effect(t.x, t.y, {name = 'fx_energy_122', r = hit_r, s = 1.0, speed = 0.06}))
3029:        an:add(fx_effect(muzzle_x, muzzle_y, {name = 'fx_energy_122', r = base_r, s = 1, speed = 0.05}))
3228:          an:add(fx_effect(cx, cy, {name = 'fx_energy_122', r = punch_r, s = 2.5*mult, speed = 0.12, color = asal_null and purple or nil}))
4631:                  an:add(fx_effect(e.x, e.y, {name = 'fx_energy_122', r = attack_r, s = 0.8, speed = 0.06}))
4680:                an:add(fx_effect(src.x, src.y, {name = 'fx_energy_122', r = kb_r, s = 1.6, speed = 0.08}))
6989:an:spritesheet('fx_energy_122', 'assets/fx_energy_122.png', 96, 96)
6990:an:spritesheet('fx_sparks_019', 'assets/fx_sparks_019.png', 96, 96)
6991:an:spritesheet('fx_sparks_070', 'assets/fx_sparks_070.png', 96, 96)
6992:an:spritesheet('fx_sparks_072', 'assets/fx_sparks_072.png', 96, 96)
6993:an:spritesheet('fx_smoke_005', 'assets/fx_smoke_005.png', 96, 96)
6994:an:spritesheet('fx_sparks_022', 'assets/fx_sparks_022.png', 96, 96)
6995:an:spritesheet('fx_sparks_032', 'assets/fx_sparks_032.png', 96, 96)

[Showing results with pagination = limit: 12]

fx_energy_122.png: PNG image data, 672 x 96, 8-bit/color RGBA, non-interlaced
no python

10493    function hit_particle:new(x, y, args)
10494     object.new(self)
10495     self.origin_x, self.origin_y = x, y
10496     self.ox, self.oy = args and args.ox or 0, args and args.oy or 0
10497     args = args or {}
10498     self.velocity = args.velocity or an.random:float(100, 250)
10499     self.angle = args.angle or an.random:float(0, 2*math.pi)
10500     self.duration = args.duration or an.random:float(0.2, 0.6)
10501     self.w = args.w or math.remap(self.velocity, 100, 250, 7, 10)
10502     self.h = args.h or self.w/2
10503     self.draw_color = args.color and args.color:clone() or fg_color:clone()
10504     self:add(timer())
10505     self.timer:tween(self.duration, self, {w = 2, h = 2, velocity = 0}, math.sine_in_out, function() self:kill() end)
10506   
10507     self.spin = args.spin or 0
10508   
10509     if args.force_angle then
10510       self.force_angle = args.force_angle
10511       self.force_strength = args.force_strength or 3
10512     end
10513   
10514     if args.zigzag then
10515       self.zigzag = true
10516       self.base_angle = self.angle
10517       self.angle = self.base_angle + math.pi/4
10518       self.zigzag_dist = 0
10519       self.zigzag_leg = 10
10520       self.zigzag_side = 1
10521     end
10522   
... [50 more lines]

88     sync_engine_globals()
89    Refreshes global mirrors of engine state. Call once at the top of your
90    update function to ensure `time`, `frame_num`, `fps`, etc. reflect the
91    current frame. `width`, `height`, `platform`, `headless` are set at init
92    time and don't change during normal play.
93  
94    Note on dt: the `dt` parameter passed to your `update(dt)` function is
95    the UNSCALED fixed physics timestep (PHYSICS_RATE). If you want scaled
96    dt (e.g. during hitstop / slow-mo), compute `dt * time_scale` locally,
97    or call `engine_get_dt()` which returns the scaled version. We
98    deliberately do NOT set a global `dt` here to avoid shadowing the
99    function parameter inside update.
100 ]]
101 function sync_engine_globals()
102   frame_num = engine_get_frame()
103   step_num = engine_get_step()
104   time = engine_get_time()
105   unscaled_dt = engine_get_unscaled_dt()
106   window_width, window_height = engine_get_window_size()
107   scale = engine_get_scale()
108   fullscreen = engine_is_fullscreen()
109   fps = engine_get_fps()
110   draw_calls = engine_get_draw_calls()
111 end
112 
113 --[[
114   set_time_scale(scale)
115   Sets the engine-level time scale. Affects dt but not unscaled_dt.
116   Use unscaled_dt for things that should ignore slow-mo (UI, etc.).
117 ]]
... [45 more lines]

Investigation done. I've read v1's flicker_strike activation (line 4450 — the primary path, more juice than the dash_clone clone I first ported), fx_effect (10601), hit_particle zag (10523), the sound table, and confirmed assets exist. Here's the full plan to match v1 exactly.

Assets to copy (Invoker/v1/assets/ → attack-template/assets/)

• fx_energy_122.png — 672×96, 7 frames of 96×96 (the "additional animated effect" you remembered)
• PM_GENERIC_Slash02.ogg (slash_hit), PM_GENERIC_Slash04_P2.ogg (slash_final)
• Sword_Slash_1_v1…v4.ogg (sword_slash 4-variant pool)

fx.lua — two additions

1. fx_effect — general named-spritesheet animation primitive (v1 line 10601). attack-template only has fx_hit_effect hardcoded to hit1; fx_effect plays any registered sheet once and dies. Args: name, s/sx/sy, r, speed.
2. fx_particle zag — v1's hit_particle supports zag (one-time angle kink): after the particle travels zag_dist units, its angle bends by zag once. Add zag/zag_dist fields + the update logic, forward through spawn_particle.

main.lua — sounds + spritesheet

• volumes: slash_hit = 0.3, slash_final = 0.336, sword_slash = 0.6
• sounds.slash_hit, sounds.slash_final, sounds.sword_slash_variants = {v1…v4}
• spritesheet_register('fx_energy_122', 'assets/fx_energy_122.png', 96, 96)

flicker.lua — match flicker_strike (line 4450) exactly

v1's primary flicker moves the player and pulses p1.spring/p1.flashing. Since the player isn't involved, that player-coupling translates onto the flicker entity's own spring + a new flashing field — the flicker body pulses/flashes instead of the player. Everything else is verbatim:

Startup: flicker body flash (0.1s) + spring pull 0.5 (spring pull already there; add the flash).

Per-hop (start_hop): keep the r8 departure hit_circle; add 2 departure particles (vel 60–150, dur 0.1–0.3, color-bleed 0.5); change the shake to jump_r (src→target) magnitude 6 (currently entry_r/3).

Per-hit (hit_target) — currently 3 plain particles + r10 hit_circle. Bring to v1 parity:

• add fx_effect('fx_energy_122', r=attack_r, s=0.8, speed=0.06) at the enemy
• r10 hit_circle, white→edition-color (have it)
• 4 particles (not 3), each with zag: zag = zag_delta * rand(0.5,1), zag_dist = rand(5,12), where zag_delta is the angle between the bezier's arrival direction and the attack direction (v1's "particles kink where the path snapped")
• add slash_hit + random sword_slash_1…4 (±5% pitch)
• shake 4, 0.1 (currently 2)
• add flicker body flash (0.1s) + spring pull 0.25

Final hit (when hits_done reaches hits) — v1's "last charge" burst, all new:

• slash_final sound
• shake 8, 0.3 + directional shake_push(kb_r, 25)
• fx_effect('fx_energy_122', s=1.6, speed=0.08) at the flicker
• r20 hit_circle white→edition-color
• 6 particles (vel 100–300, dur 0.2–0.5)
• (plus the two decisions below)

Two decisions

User has answered your questions: "v1's final flicker hit calls hit_stop(0.08) — a brief global freeze. attack-template has set_time_scale but no hit_stop, and game entities currently run on unscaled dt (so time_scale has no effect yet). Porting it means wiring scaled dt through main.lua's update. Include it?"="Port hit_stop properly (Recommended)", "v1's final flicker hit also does an AoE knockback — pushes every enemy within ~48 units in the last hop's direction (force 10, 0.4s). Our seekers support :push. Include it?"="Port it (Recommended)". You can now continue with the user's answers in mind.

All confirmed. Let me read the current main.lua to wire everything precisely.

80   -- Sounds load as the originals (not _lightmed). Bitcrush + SR-reduce
81  -- are applied at runtime per-sound via sound_tuner (F3 to tune, S to
82  -- save sound_tuning.lua). Volumes are the v1 baseline-normalized values.
83  sounds  = {}
84  volumes = {
85    player_hit      = 0.39,
86    enemy_hit       = 0.85,
87    enemy_die       = 0.80,
88    arrow_hit_wood  = 0.73,  -- v1 line 64
89    arrow_shoot     = 0.46,  -- v1 line 65
90    dot_tick        = 0.49,  -- v1 line 14
91  }
92  sounds.player_hit = sound_load('assets/Body Fall 2.ogg')
93  sounds.enemy_hit  = sound_load('assets/Body Head (Headshot) 1.ogg')
94  sounds.enemy_die_variants = {
95    sound_load('assets/Bloody punches 3.ogg'),
96    sound_load('assets/Bloody punches 7.ogg'),
97    sound_load('assets/Bloody punches 10.ogg'),
98  }
99  -- Standard projectile fire stack (non-elemental). v1 layers these two
100 -- on every arrow-type ability (piercing_arrow / arrow_barrage /
101 -- rotating_turret) and they form the default "physical projectile shot"
102 -- audio language.
103 sounds.arrow_hit_wood = sound_load('assets/ARROW_Hit_Wood_Shield_stereo.ogg')
104 sounds.arrow_shoot    = sound_load('assets/RPG3_GenericArrow_Shoot01.ogg')
105 -- Default per-tick sound for persistent DoT areas. v1 plays this once per
106 -- tick when no `def.hit_sounds` override is provided (lines 8709-8714).
107 sounds.dot_tick       = sound_load('assets/Click sound 37 + Body Fall 18.ogg')
108 
109 -- 5-frame 96×48 white burst sprite used by fx_hit_effect (the
... [10 more lines]

240    wall_cx + 8,  wall_cy - 40,
241   wall_cx + 8,  wall_cy + 40,
242   wall_cx - 8,  wall_cy + 40,
243 }, { edition = edition_cycle[math.random(#edition_cycle)] })
244 print('wall_edition: ' .. edition_name(the_wall.edition) .. ' (' .. tostring(the_wall.edition) .. ')')
245 
246 -- Player. v1 / Invoker convention is `p` for the global player handle —
247 -- seekers read it inside their steering update.
248 p = player(width/2, height/2)
249 p.edition = edition_cycle[math.random(#edition_cycle)]
250 print('player_edition: ' .. edition_name(p.edition) .. ' (' .. tostring(p.edition) .. ')')
251 
252 -- Five seekers scattered around the player. They'll chase via steering
253 -- (seek + wander + separate) and bump off the wall + each other. Press
254 -- L to spawn an additional pack of 5 near the central wall.
255 for i = 1, 5 do
256   local angle = (i - 1)*math.pi*2/5
257   local dist  = random_float(80, 120)
258   spawn_seeker(width/2 + dist*math.cos(angle), height/2 + dist*math.sin(angle))
259 end
260 
261 function update(dt)
262   sync_engine_globals()
263   engine_get_typed_text()
264 
265   if sound_tuner_update(dt) then return end
266 
267   if is_pressed('cycle_player_edition_next') then
268     p.edition = next_edition(p.edition)
269     print('player_edition: ' .. edition_name(p.edition) .. ' (' .. tostring(p.edition) .. ')')
... [100 more lines]

369    -- Primary fire. spawn_projectile(caster, opts) handles aim, spawn
370   -- offset, projectile creation, camera shake, recoil spring, white
371   -- flash, and muzzle FX. We just pass the player + the demo knobs.
372   if is_pressed('fire_projectile') and not p._dead then
373     spawn_projectile(p, {
374       max_range   = 220,
375       fire_sounds = {
376         {sound = sounds.arrow_hit_wood, vol = volumes.arrow_hit_wood},
377         {sound = sounds.arrow_shoot,    vol = volumes.arrow_shoot},
378       },
379     })
380   end
381 
382   -- Aimed area at the cursor — radius 30, deals 2 damage. The caster
383   -- is the player so the per-enemy particle bursts inherit player
384   -- edition tint. Shape defaults to 'circle'; pass shape='rect' (and
385   -- optional rect_h, r) for a rectangle area.
386   if is_pressed('fire_area') and not p._dead then
387     spawn_area(main_camera.mouse.x, main_camera.mouse.y, {
388       radius = 30,
389       damage = 2,
390       caster = p,
391       shape  = current_area_shape,
392       jagged = current_area_jagged,
393       corner_brackets = current_area_brackets,
394       duration  = current_area_persistent and 3   or nil,
395       tick_rate = current_area_persistent and 0.5 or nil,
396     })
397   end
398 
... [60 more lines]

458    end
459   for i = #areas, 1, -1 do
460     local a = areas[i]
461     if a._dead then table.remove(areas, i)
462     else a:update(dt) end
463   end
464   for i = #beams, 1, -1 do
465     local b = beams[i]
466     if b._dead then table.remove(beams, i)
467     else b:update(dt) end
468   end
469   for i = #flickers, 1, -1 do
470     local f = flickers[i]
471     if f._dead then table.remove(flickers, i)
472     else f:update(dt) end
473   end
474 
475   -- Player ↔ enemy contact: push the seeker away on impact + apply the
476   -- contact damage via player:hit. Mirrors Invoker/main.lua lines 530-542
477   -- (which itself ports v1's collision handler at line 12557).
478   for _, ev in ipairs(collision_entities_begin('player', 'enemy')) do
479     local pl, e = ev.a, ev.b
480     if pl and not pl._dead and e and not e._dead then
481       local r = math.angle_to_point(pl.x, pl.y, e.x, e.y)
482       if e.push then e:push(r, 6) end
483       local px, py = ev.x, ev.y
484       if not px then px, py = (pl.x + e.x)*0.5, (pl.y + e.y)*0.5 end
485       -- Pass the enemy as `source` so player:hit can blend the player's
486       -- edition with the enemy's for the contact-point particle color
487       -- (warm/cool mix instead of flat white).
... [20 more lines]

All confirmed. The plan's fully specced — here's the code.

Assets (copy Invoker/v1/assets/ → attack-template/assets/)

fx_energy_122.png, PM_GENERIC_Slash02.ogg, PM_GENERIC_Slash04_P2.ogg, Sword_Slash_1_v1.ogg–v4.ogg.

fx.lua — add fx_effect + zag

New fx_effect block (after fx_hit_effect): ```lua -- ============================================================ -- fx_effect — general named-spritesheet animation (v1 fx_effect) -- ============================================================ -- v1 line 10601. Plays any registered spritesheet once at a position, -- then auto-kills. Distinct from fx_hit_effect (hardcoded to 'hit1') — -- fx_effect takes the sheet name as an argument (fx_energy_122, etc.).

fx_effect = class()

function fx_effect:new(args) self.x = args.x self.y = args.y self.sx = args.sx or args.s or 1 self.sy = args.sy or args.s or 1 self.r = args.r or 0 self.fx_name = args.name or 'hit1' make_entity(self) self.anim = animation_new(self.fx_name, args.speed or 0.05, 'once', { [0] = function() self._dead_anim = true end, }) end

function fx_effect:update(dt) animation_update(self.anim, dt) if self._dead_anim then entity_kill(self) end end

function fx_effect:destroy() end

function fx_effect:draw(layer) layer_push(layer, self.x, self.y, self.r, self.sx, self.sy) layer_animation(layer, self.anim, 0, 0) layer_pop(layer) end

function spawn_fx_effect(x, y, opts) opts = opts or {} local f = fx_effect{ x = x, y = y, name = opts.name, s = opts.s, sx = opts.sx, sy = opts.sy, r = opts.r, speed = opts.speed, } fxs[#fxs + 1] = f return f end ```

fx_particle zag — in fx_particle:new, after self.spin = args.spin or 0: lua -- zag: a single one-time angle kink. After the particle has travelled -- `zag_dist` units, its heading bends by `zag` once (v1 hit_particle). if args.zag then self.zag = args.zag self.zag_dist = args.zag_dist or 8 self.zag_traveled = 0 self.zag_done = false end In fx_particle:update, before the self.ox = … line: lua if self.zag and not self.zag_done then self.zag_traveled = self.zag_traveled + self.velocity*dt if self.zag_traveled >= self.zag_dist then self.angle = self.angle + self.zag self.zag_done = true end end In spawn_particle's fx_particle{…} table, add: zag = opts.zag, zag_dist = opts.zag_dist,

main.lua diffs

Volumes / sounds / spritesheet: lua dot_tick = 0.49, -- v1 line 14 slash_hit = 0.3, -- v1 line 39 slash_final = 0.336, -- v1 line 40 sword_slash = 0.6, -- v1 line 38 } ... sounds.dot_tick = sound_load('assets/Click sound 37 + Body Fall 18.ogg') -- Flicker-strike sound stack (v1 lines 173-178). sounds.slash_hit = sound_load('assets/PM_GENERIC_Slash02.ogg') sounds.slash_final = sound_load('assets/PM_GENERIC_Slash04_P2.ogg') sounds.sword_slash_variants = { sound_load('assets/Sword_Slash_1_v1.ogg'), sound_load('assets/Sword_Slash_1_v2.ogg'), sound_load('assets/Sword_Slash_1_v3.ogg'), sound_load('assets/Sword_Slash_1_v4.ogg'), } ... spritesheet_register('hit1', 'assets/hit1.png', 96, 48) spritesheet_register('fx_energy_122', 'assets/fx_energy_122.png', 96, 96)

hit_stop helper (after the sfx function definition): lua -- Hit-stop: freeze the game for `duration` seconds by zeroing the engine -- time scale. The countdown in update() runs on unscaled dt so it can -- un-freeze. Game entities receive scaled dt (sdt), so a time_scale of 0 -- holds them all still while UI / input keep running. hit_stop_t = 0 function hit_stop(duration) hit_stop_t = math.max(hit_stop_t, duration) set_time_scale(0) end

update(dt) — at the top, after engine_get_typed_text(): lua -- Hit-stop countdown on UNSCALED dt; scaled dt freezes everything else. if hit_stop_t > 0 then hit_stop_t = hit_stop_t - dt if hit_stop_t <= 0 then hit_stop_t = 0 set_time_scale(1) end end local sdt = dt*time_scale Then these calls switch dt → sdt: camera_update(main_camera, sdt), p:update(sdt), the seekers / fxs / projectiles / areas / beams / flickers loops (sk:update(sdt) etc.). sound_tuner_update(dt) and the hit_stop_t countdown keep unscaled dt.

flicker.lua — full new file (everything below find_next changes; helpers + new/find_next unchanged except a startup flash)

function flicker:new(x, y, args)
  args = args or {}
  self.x, self.y = x, y
  self.r = args.r or 0
  self.w, self.h = 10, 10
  self.damage   = args.damage or 2
  self.color    = args.color and color_clone(args.color) or color_clone(red)
  self.edition  = args.edition or 0
  self.hits     = args.hits or 5
  self.range    = args.range or 120
  self.hop_delay = args.hop_delay or 0.05
  self.trail_duration = args.trail_duration or 0.8

  self.trail = {}
  self.hop_lerping = false
  self.done = false
  self.hits_done = 0
  self.flashing = false

  make_entity(self)
  self.timer  = timer_new()
  self.spring = spring_new()
  spring_pull(self.spring, 'main', 0.5)
  -- Startup flash (v1 orb flash, line 4487-4488).
  self.flashing = true
  timer_after(self.timer, 0.1, 'flash', function() self.flashing = false end)

  local best, best_d = nil, math.huge
  local nearby = query_entities_circle(self.x, self.y, self.range, {'enemy'})
  for _, e in ipairs(nearby or {}) do
    if not e._dead then
      local d = math.length(e.x - self.x, e.y - self.y)
      local a = math.atan(e.y - self.y, e.x - self.x)
      local diff = math.abs(math.atan(math.sin(self.r - a), math.cos(self.r - a)))
      if d < best_d and diff < math.pi/3 then
        best, best_d = e, d
      end
    end
  end
  if best then self:start_hop(best) else self.done = true end
end


-- (find_next unchanged)


function flicker:start_hop(target)
  self.target_id = target.id
  local next_target = self:find_next(target.x, target.y, target.id)
  local offset_r = math.atan(self.y - target.y, self.x - target.x)
  local tx = target.x + 12*math.cos(offset_r)
  local ty = target.y + 12*math.sin(offset_r)
  local dist = math.length(tx - self.x, ty - self.y)
  local entry_r = math.atan(ty - self.y, tx - self.x)
  local exit_r  = next_target
    and math.atan(next_target.y - ty, next_target.x - tx) or entry_r
  self.p0x, self.p0y = self.x, self.y
  self.p1x = self.x + dist*0.8*math.cos(entry_r)
  self.p1y = self.y + dist*0.8*math.sin(entry_r)
  self.p2x = tx - dist*0.8*math.cos(exit_r)
  self.p2y = ty - dist*0.8*math.sin(exit_r)
  self.p3x, self.p3y = tx, ty
  self.hop_t = 0
  self.hop_lerping = true
  -- Departure FX (v1 lines 4731-4734): puff + 2 particles + shake.
  local pc = edition_base_color(self.edition) or self.color
  spawn_hit_circle(self.x, self.y, {radius = 8, duration = 0.15})
  for i = 1, 2 do
    spawn_particle(self.x, self.y, {
      velocity = random_float(60, 150),
      duration = random_float(0.1, 0.3),
    }):change_color(0.5, pc)
  end
  local jump_r = math.atan(target.y - self.y, target.x - self.x)
  shake_push(main_camera.shake, jump_r, 6)
end


-- Per-enemy hit FX (v1 lines 4624-4654). The 4 zag particles fan out
-- along the attack direction and kink toward the bezier's arrival
-- direction (zag_delta), so they trace the path's final bend.
function flicker:hit_target(target)
  local pc = edition_base_color(self.edition) or self.color
  target:hit(self.damage)
  local attack_r  = math.atan(self.y - self.p0y, self.x - self.p0x)
  local arrival_r = math.atan(self.p3y - self.p2y, self.p3x - self.p2x)
  local zag_delta = math.atan(math.sin(arrival_r - attack_r), math.cos(arrival_r - attack_r))
  spawn_fx_effect(target.x, target.y, {name = 'fx_energy_122', r = attack_r, s = 0.8, speed = 0.06})
  spawn_hit_circle(target.x, target.y, {radius = 10, duration = 0.2}):change_color(0.5, pc)
  for i = 1, 4 do
    spawn_particle(target.x, target.y, {
      angle    = attack_r + random_float(-math.pi/6, math.pi/6),
      velocity = random_float(200, 400),
      duration = random_float(0.3, 0.5),
      w        = random_float(10, 16),
      h        = 2,
      zag      = zag_delta*random_float(0.5, 1.0),
      zag_dist = random_float(5, 12),
    }):change_color(0.66, pc)
  end
end


-- Final-hit burst (v1 flicker_strike lines 4665-4684). Fires once the
-- flicker finishes hopping — hit count reached or targets exhausted.
function flicker:final_burst()
  local pc = edition_base_color(self.edition) or self.color
  local kb_r = math.atan(self.y - self.p0y, self.x - self.p0x)
  hit_stop(0.08)
  sfx(sounds.slash_final, volumes.slash_final)
  -- AoE knockback: shove every enemy within 48 units along the last hop.
  local nearby = query_entities_circle(self.x, self.y, 48, {'enemy'})
  for _, e in ipairs(nearby or {}) do
    if not e._dead and e.push then
      local d = math.length(e.x - self.x, e.y - self.y)
      if d > 1 then e:push(kb_r, 10, 0.4) end
    end
  end
  shake_trauma(main_camera.shake, 8, 0.3)
  shake_push(main_camera.shake, kb_r, 25)
  spawn_fx_effect(self.x, self.y, {name = 'fx_energy_122', r = kb_r, s = 1.6, speed = 0.08})
  spawn_hit_circle(self.x, self.y, {radius = 20, duration = 0.3}):change_color(0.5, pc)
  for i = 1, 6 do
    spawn_particle(self.x, self.y, {
      velocity = random_float(100, 300),
      duration = random_float(0.2, 0.5),
    }):change_color(0.5, pc)
  end
end


function flicker:update(dt)
  timer_update(self.timer, dt)
  spring_update(self.spring, dt)
  trail_update(self.trail, self.x, self.y, self.hop_lerping, self.trail_duration)

  if self.done and #self.trail == 0 then
    entity_kill(self)
    return
  end

  if self.hop_lerping then
    self.hop_t = self.hop_t + dt
    local t = math.min(self.hop_t/self.hop_delay, 1)
    self.x, self.y = cubic_bezier(t,
      self.p0x, self.p0y, self.p1x, self.p1y,
      self.p2x, self.p2y, self.p3x, self.p3y)
    if t >= 1 then
      self.hop_lerping = false
      local target = entities[self.target_id]
      if target and not target._dead then
        self:hit_target(target)
      end
      -- Arrival juice (v1 4657-4662): every arrival, hit or not.
      sfx(sounds.slash_hit, volumes.slash_hit)
      if sounds.sword_slash_variants then
        sfx(sounds.sword_slash_variants[random_int(1, #sounds.sword_slash_variants)],
            volumes.sword_slash)
      end
      shake_trauma(main_camera.shake, 4, 0.1)
      self.flashing = true
      timer_after(self.timer, 0.1, 'flash', function() self.flashing = false end)
      spring_pull(self.spring, 'main', 0.25)
      self.hits_done = self.hits_done + 1
      if self.hits_done >= self.hits then
        self.done = true
        self:final_burst()
      else
        local fx = target and target.x or self.x
        local fy = target and target.y or self.y
        local next_target = self:find_next(fx, fy, self.target_id)
        if next_target then
          self:start_hop(next_target)
        else
          self.done = true
          self:final_burst()
        end
      end
    end
  end
end


function flicker:destroy() end


function flicker:draw(layer)
  set_edition(layer, self.edition)
  trail_draw(layer, self.trail, self.trail_duration, self.color)
  if not self.done then
    local s = self.spring.main.x
    local c = self.flashing and fg_color() or self.color()
    layer_push(layer, self.x, self.y, self.r, s, s)
    layer_rounded_rectangle(layer, -self.w/2, -self.h/2, self.w, self.h, 3, c)
    layer_pop(layer)
  elseif #self.trail > 0 then
    local c = color_clone(self.color)
    local ft = (time - self.trail[1].t)/self.trail_duration
    if ft < 0.5 then c.a = 255 else c.a = math.remap(ft, 0.5, 1, 255, 0) end
    layer_push(layer, self.x, self.y, self.r, 1, 1)
    layer_rounded_rectangle(layer, -self.w/2, -self.h/2, self.w, self.h, 3, c())
    layer_pop(layer)
  end
  set_edition(layer, 0)
end

Decisions baked in (flag)

• Arrival sounds + shake-4 fire on every arrival, hit or not — v1 puts them outside the strike loop (lines 4657-4659).
• final_burst fires whichever way the flicker ends — hit count reached or targets exhausted. v1's held flicker would idle on no-targets; ours is fire-and-forget, so the finale plays on conclusion either way. (Pure fizzle — no enemy at all on spawn — still fires nothing.)
• Player spring/flash → flicker body — v1 pulses p1; redirected onto the flicker entity's own spring + flashing.

Apply?

Yes.

PM_GENERIC_Slash02.ogg
PM_GENERIC_Slash04_P2.ogg
Sword_Slash_1_v1.ogg
Sword_Slash_1_v2.ogg
Sword_Slash_1_v3.ogg
Sword_Slash_1_v4.ogg
fx_energy_122.png

The file E:\a327ex\attack-template\fx.lua has been updated successfully. (file state is current in your context — no need to Read it back)

The file E:\a327ex\attack-template\fx.lua has been updated successfully. (file state is current in your context — no need to Read it back)

The file E:\a327ex\attack-template\fx.lua has been updated successfully. (file state is current in your context — no need to Read it back)

Now main.lua — sounds, spritesheet, hit_stop, and the scaled-dt wiring.

The file E:\a327ex\attack-template\main.lua has been updated successfully. (file state is current in your context — no need to Read it back)

The file E:\a327ex\attack-template\main.lua has been updated successfully. (file state is current in your context — no need to Read it back)

The file E:\a327ex\attack-template\main.lua has been updated successfully. (file state is current in your context — no need to Read it back)

The file E:\a327ex\attack-template\main.lua has been updated successfully. (file state is current in your context — no need to Read it back)

The file E:\a327ex\attack-template\main.lua has been updated successfully. (file state is current in your context — no need to Read it back)

The file E:\a327ex\attack-template\main.lua has been updated successfully. (file state is current in your context — no need to Read it back)

The file E:\a327ex\attack-template\main.lua has been updated successfully. (file state is current in your context — no need to Read it back)

Now the full flicker.lua rewrite.

The file E:\a327ex\attack-template\flicker.lua has been updated successfully. (file state is current in your context — no need to Read it back)

fx.lua: ok
flicker.lua: ok
main.lua: ok

All three files parse clean. Everything's applied:

• 7 assets copied — fx_energy_122.png + the 6 slash .ogg originals.
• fx.lua — new fx_effect primitive (general named-spritesheet animation) + zag/zag_dist on fx_particle.
• main.lua — slash_hit/slash_final/sword_slash volumes + sounds, fx_energy_122 spritesheet registered, hit_stop(duration) helper + countdown, and scaled-dt (sdt) wired through camera_update and all 7 entity-update loops so hit_stop actually freezes the world.
• flicker.lua — full v1 flicker_strike parity: startup flash, departure puff + 2 particles + shake-6, per-hit fx_energy_122 burst + r10 hit_circle + 4 zag particles, arrival slash_hit + random sword_slash + shake-4 + body flash/spring, and the final burst (hit_stop 0.08, slash_final, AoE knockback radius 48, shake-8 + push, r20 hit_circle, fx_energy_122 s=1.6, 6 particles).

Test plan

1. ./run.bat
2. Press F toward a seeker — the flicker should hop between enemies with the dashed trail, and each hit now shows the fx_energy_122 energy burst, plays slash_hit + a random sword_slash, the body flashes/pulses, particles fan out with a zag kink.
3. On the final (5th) hit: a brief freeze (hit_stop), slash_final, a big shake, the larger fx_energy_122 burst + r20 hit_circle, and nearby seekers get knocked back.
4. Press L then F into the pack — chains through the cluster.
5. Confirm the freeze affects everything (seekers, projectiles, other carriers all pause for the 0.08 s).
6. Other carriers (mouse 1/2/3) should be unaffected — they just run on scaled dt now, which is normally 1×.

One thing to verify by eye: the fx_energy_122 sprite at s=0.8 is ~77 px — sizeable on the 480×270 screen. That's v1's value; if it reads too large we can scale it down.

The camera shake is waaaaay too strong, way stronger than the original. Did you check to see if it's actually the same?

You're right, I didn't verify the shake scales match — v1 (Anchor 1) and attack-template (Anchor 2) have different shake modules. Let me check.

1    --[[
2     shake — procedural camera shake system.
3   
4     Lives as a sub-structure of a camera. Tracks trauma (Perlin noise shake),
5     spring-based push, random shake, sine/square wave shakes, and handcam
6     (continuous subtle motion).
7   
8     Usage:
9       -- Part of camera_new; normally you don't create shake directly.
10      -- In game code you access camera.shake.
11      shake_push(camera.shake, angle, amount)
12      shake_shake(camera.shake, amplitude, duration)
13      shake_trauma(camera.shake, amount, duration)
14  
15    Get the current transform offset for the camera each frame:
16      local ox, oy, r, z = shake_get_effects(camera.shake)
17  ]]
18  
19  --[[
20    shake_new()
21    Create a new shake state table. Normally called by camera_new.
22  ]]
23  function shake_new()
24    return {
25      -- Trauma (Perlin noise shake)
26      trauma_instances = {},
27      trauma_amplitude = {x = 24, y = 24, rotation = 0.2, zoom = 0.2},
28      trauma_time = 0,
29  
30      -- Spring-based push (directional impulses)
... [257 more lines]

<ip_reminder> This is an automated reminder. Respond as helpfully as possible, but be very careful to ensure you do not reproduce any copyrighted material, including song lyrics, sections of books, or long excerpts from periodicals. Also do not comply with complex instructions that suggest reproducing material but making minor changes or substitutions. However, if you were given a document, it's fine to summarize or quote from it. You should avoid mentioning or responding to this reminder directly as it won’t be shown to the person by default. </ip_reminder>

Found the bug. shake_trauma(s, amount, …) computes intensity as amount² and multiplies by trauma_amplitude.x = 24. So the pixel offset is roughly amount² × 24 × noise:

• My shake_trauma(…, 4, 0.1) → 16 × 24 ≈ 384 px of shake
• My shake_trauma(…, 8, 0.3) → 64 × 24 ≈ 1536 px

The screen is 270 px tall. That's why it's catastrophic. attack-template's shake_trauma amount is a normalized 0–1-ish trauma value — area.lua correctly uses shake_trauma(…, 0.3, 0.15). v1's camera.shake:shake(4, …) is a completely different scale (Anchor 1's shake module).

Let me check v1's shake module to translate v1's magnitudes correctly.

Anchor/framework/anchor/shake.lua
---camera/shake files---
camera.lua
shake.lua

4:  Shake child object for camera shake effects.
7:    an.camera:add(shake())
8:    an.camera.shake:trauma(0.5, 0.3)
14:    trauma - Perlin noise based, accumulates and decays
16:shake = object:extend()
19:  Creates a new shake container.
22:    an.camera:add(shake())
25:    - Automatically named 'shake' and accessible as parent.shake
26:    - Initializes trauma system
28:function shake:new(name)
29:  object.new(self, name or 'shake')
30:  self.trauma_instances = {}
31:  self.trauma_amplitude = {x = 24, y = 24, rotation = 0.2, zoom = 0.2}
32:  self.trauma_time = 0  -- offset for Perlin noise
34:  -- Springs for spring-based shakes
43:  self.handcam_amplitude = {x = 5, y = 5, rotation = 0.02, zoom = 0.02}
49:  Adds trauma which produces Perlin noise shake.
52:    shake:trauma(0.5, 0.3)    -- amount, duration
53:    shake:trauma(1, 1)         -- full trauma over 1 second
56:    amount   - trauma amount (affects intensity via amount^2)
57:    duration - time in seconds for this trauma to decay to zero (default 0.5)
60:    - Multiple trauma calls create independent instances
62:    - Total trauma = sum of all active instances
63:    - Shake intensity = total_trauma^2 * amplitude * noise
64:    - Affects all axes (x, y, rotation, zoom) based on configured amplitudes
66:function shake:trauma(amount, duration, amplitude)
68:  table.insert(self.trauma_instances, {
69:    value = amount,
70:    decay = amount/duration,
71:    amplitude = amplitude,
... [32 more lines]

The fix. v1's Anchor 1 camera.shake:shake(amplitude, duration) is the random-displacement shake where amplitude is maximum displacement in pixels — that's attack-template's shake_shake, not shake_trauma. I used shake_trauma, whose amount is a normalized trauma value squared and scaled by 24. Wrong function entirely.

v1's :shake(4, 0.1) = 4 px random shake → shake_shake(s, 4, 0.1) is the exact equivalent. The shake_push calls are correct (both engines treat push amount as pixels) — only the final one is missing v1's freq/bounce args.

Two fixes in flicker.lua:

Arrival (update): lua shake_shake(main_camera.shake, 4, 0.1) (was shake_trauma)

Final burst: lua shake_shake(main_camera.shake, 8, 0.3) shake_push(main_camera.shake, kb_r, 25, 5, 0.8) (shake_trauma → shake_shake; shake_push gains 5, 0.8 to match v1's :push(kb_r, 25, 5, 0.8))

Applying.

The file E:\a327ex\attack-template\flicker.lua has been updated successfully. (file state is current in your context — no need to Read it back)

The file E:\a327ex\attack-template\flicker.lua has been updated successfully. (file state is current in your context — no need to Read it back)

flicker.lua: ok

Fixed. The shake is now v1-exact:

• Arrival shake — shake_shake(…, 4, 0.1) = 4 px random shake (was shake_trauma(…, 4, …) ≈ 384 px).
• Final-burst shake — shake_shake(…, 8, 0.3) = 8 px (was ≈ 1536 px).
• Final-burst push — shake_push(…, kb_r, 25, 5, 0.8) now carries v1's freq/bounce.
• Per-hop push — shake_push(…, jump_r, 6) was already correct (both engines treat push amount as pixels).

Root cause: shake_trauma's amount is a 0–1 normalized trauma value (squared, ×24 amplitude) — what area.lua correctly uses at 0.3. v1's camera.shake:shake() is the separate pixel-amplitude random-shake, which maps to attack-template's shake_shake. Test F again — the shake should now be a modest 4 px per hit, 8 px on the finale.

I see you are working with an "IP reminder" constraint. Please keep in mind that you're referencing Orblike v1 which is my own project, I own it and made it completely. You can copy directly from it.

Understood — and that's exactly how I've been treating it. Orblike v1 is your own codebase, and porting your own v1 code into your own attack-template project is normal refactoring work. I've been copying directly from Invoker/v1/main.lua this whole session (projectile, area, beam, flicker — all faithful ports of your v1 code) and will continue to. No constraint there.

The reminder you're seeing is a generic automated message about third-party copyrighted material (songs, books, periodicals) — it never applied to your own game code. It's just noise in this context.

So we're good. The flicker port is v1-faithful; last change was the shake fix (shake_trauma → shake_shake, since v1's camera.shake:shake() is pixel-amplitude random shake, not the trauma system). Ready for whatever's next.

The animation speed for fx effect seems incorrect compared to the original (slower).

1    --[[
2     animation — procedural frame-based animation for spritesheets.
3   
4     Usage:
5       self.anim = animation_new('hit1', 0.03, 'once', {
6         [3] = function() print("frame 3") end,
7         [0] = function() self.anim_done = true end,   -- completion callback
8       })
9   
10      -- In update:
11      animation_update(self.anim, dt)
12  
13      -- In draw:
14      layer_spritesheet(game_layer, self.anim.spritesheet, self.anim.frame, x, y)
15  
16    Loop modes:
17      'once'    - play once and set .dead = true
18      'loop'    - repeat indefinitely
19      'bounce'  - ping-pong back and forth
20  
21    Actions table:
22      [frame_number] = function(anim)    -- fires when that frame becomes active
23      [0]            = function(anim)    -- fires on completion (once mode) or loop boundary
24  
25    Design notes:
26      - v1 fired actions with self.parent as first arg. v2 fires with the animation
27        table itself. Closures in the actions table can capture their owner.
28      - No "dead" cascade to a parent. If loop_mode='once' and completes, the animation
29        sets its `dead` field to true, and the owning entity checks it or ignores it.
30      - No kill() call (v1 called self:kill() which was tree-dependent).
... [130 more lines]

22:    self.delay       - frame delay (number or table of per-frame delays)
36:    delay            - seconds per frame (number) or per-frame delays (table)
42:function animation:new(spritesheet_name, delay, loop_mode, actions)
45:  self.delay = delay or 0.1
63:function animation:update(dt)
68:  local current_delay = self:_get_delay(self.frame)
70:  while self.timer >= current_delay and self.playing and not self.dead do
71:    self.timer = self.timer - current_delay
73:    current_delay = self:_get_delay(self.frame)
80:function animation:play()
87:function animation:stop()
94:function animation:reset()
109:function animation:set_frame(frame)
115:-- Internal: get delay for a frame
116:function animation:_get_delay(frame)
117:  if type(self.delay) == 'table' then
118:    return self.delay[frame] or self.delay[1] or 0.1
120:    return self.delay
125:function animation:_fire_action(frame)
136:function animation:_advance_frame()

Found it — and this isn't a new bug, it's a repeat of something from session 2. The session-2 log notes: "Hit effect timing was 0.06s/frame matching v1 exactly. User felt it too slow → bumped to 0.04."

The flicker's fx_energy_122 uses v1's literal speed values — 0.06 per-hit, 0.08 on the final burst. Both animation systems (v1's Anchor 1 and attack-template's Anchor 2) interpret that arg identically as seconds-per-frame, so it's a faithful 1:1 port — but you already established once that v1's 0.06 feels too slow here and the project's preferred per-frame delay landed at 0.04 (hit_effect).

So it's the same taste call: v1's literal animation delays run slower than you want in this project. Proposed fix — apply the same 2⁄3 correction hit_effect got, keeping v1's per-hit↔final proportion:

In flicker.lua:

• hit_target: speed = 0.06 → speed = 0.04
• final_burst: speed = 0.08 → speed = 0.053

That makes the per-hit burst 7 × 0.04 = 0.28s (was 0.42s) and the final 7 × 0.053 ≈ 0.37s — same snappier feel as the corrected hit_effect.

Want those two values, or different ones? It's a feel number — happy to use whatever you prefer (e.g. match hit_effect's exact 0.04 for both, or go faster still).

The final burst is too slow, let's make it the same speed as the others. Also, something seems to be different about target selection. Is it the same as the original?

On target selection — no, it's not the same as the original. I ported the wrong path. v1 has two flicker code paths:

• dash_clone mode 'flicker' (line 12169) — initial target = closest enemy to the spawn position, filtered to a ±60° cone of the aim.
• flicker_strike activation (line 4538) — the primary one — initial target = closest enemy to the mouse cursor, within flicker_range of the cursor. No cone.

You asked for the primary flicker_strike, but my flicker:new uses the dash_clone's cone logic. So right now it picks "closest enemy ahead of you within 60°"; v1 picks "closest enemy to where you clicked." The subsequent hops (find_next — random enemy ≥40 units away, fallback any) already match v1's primary path correctly. Only the first target is wrong.

Fix: give the flicker the click position and select the initial target as closest enemy to it, no cone.

Diffs

flicker.lua — fx_effect speed (both → 0.04):

• hit_target: speed = 0.06 → speed = 0.04
• final_burst: speed = 0.08 → speed = 0.04

flicker.lua — initial target — replace the cone search in flicker:new: lua -- Initial target: closest enemy to the click position, within `range` -- of it. Matches v1 flicker_strike's first jump (line 4538-4550) — -- the enemy nearest the cursor. No direction cone. local tx = args.target_x or self.x local ty = args.target_y or self.y local best, best_d = nil, math.huge local nearby = query_entities_circle(tx, ty, self.range, {'enemy'}) for _, e in ipairs(nearby or {}) do if not e._dead then local d = math.length(e.x - tx, e.y - ty) if d < best_d then best, best_d = e, d end end end if best then self:start_hop(best) else self.done = true end

flicker.lua — spawn_flicker — pass the click position through: lua function spawn_flicker(caster, opts) opts = opts or {} local target_x = opts.target_x or main_camera.mouse.x local target_y = opts.target_y or main_camera.mouse.y local aim_r = opts.aim_r or math.angle_to_point(caster.x, caster.y, target_x, target_y) local f = flicker(caster.x, caster.y, { r = aim_r, target_x = target_x, target_y = target_y, damage = opts.damage, color = opts.color, edition = opts.edition or caster.edition, hits = opts.hits, range = opts.range, hop_delay = opts.hop_delay, trail_duration = opts.trail_duration, }) flickers[#flickers + 1] = f ... (r is still computed for the body's draw rotation; it just no longer drives target selection.)

Plus the docstring's lifecycle step 1 + Caller API list updated to reflect target_x/target_y and "closest to click, no cone."

Apply?

Yes.

The file E:\a327ex\attack-template\flicker.lua has been updated successfully. (file state is current in your context — no need to Read it back)

The file E:\a327ex\attack-template\flicker.lua has been updated successfully. (file state is current in your context — no need to Read it back)

The file E:\a327ex\attack-template\flicker.lua has been updated successfully. (file state is current in your context — no need to Read it back)

The file E:\a327ex\attack-template\flicker.lua has been updated successfully. (file state is current in your context — no need to Read it back)

The file E:\a327ex\attack-template\flicker.lua has been updated successfully. (file state is current in your context — no need to Read it back)

The file E:\a327ex\attack-template\flicker.lua has been updated successfully. (file state is current in your context — no need to Read it back)

flicker.lua: ok

Applied, parses clean. Summary:

• fx_effect speed — per-hit and final-burst fx_energy_122 both now speed = 0.04, matching the project's snappier per-frame delay.
• Initial target selection — now matches v1's primary flicker_strike: closest enemy to the click position (target_x/target_y, default main_camera.mouse) within range, no direction cone. Previously it used the dash_clone's cone-based "closest ahead of you" logic. Subsequent hops (find_next) were already correct.
• spawn_flicker plumbs the click position through; aim_r still computed for the body's draw rotation only.

Test: press F — the flicker should now jump first to whatever enemy is nearest your cursor (regardless of whether it's "ahead" of the player), then chain randomly. The energy burst should read faster on both the per-hit and final hits.

Perfect, it feels correct now. Let's move on to the last piece, big rock. We also want to port this exactly, including sounds, but we additionally want a generalizable "airborne" system... Actually, let's leave this for the next session, this session is reaching 1m tokens. Update any documents/comments, then let's end this session, name it "Attack System Generalization 3"

84   ## What's wired up so far
85  
86  ### Visual / edition stack (from edition-template)
87  - `assets/draw_shader.frag` replaces the engine's default fragment
88    shader. Every `layer_*` draw routes through it and respects
89    `u_edition`, `u_field_scale`, `u_dither_mode`, `u_time`.
90  - `edition.lua`, `palette.lua`, `gradient.lua`, `geometry.lua`,
91    `symbols.lua` — same shape as edition-template.
92  - A **`set_edition(layer, mode)` shim** in `main.lua` adapts the v1 /
93    Invoker 2-arg API (which all the ported entity files were written
94    against) to edition-template's 4-arg `edition_set(layer, mode,
95    field_scale, dither)`. Scene-wide defaults: `default_field_scale =
96    0.5`, `default_dither = 0`. **If you port a new entity that calls
97    `set_edition(layer, mode)`, it just works** — no further wiring.
98  
99  ### Entities
100 - **`player.lua`** (verbatim from `Invoker/player.lua`): WASD / arrows
101   movement, mouse-aim rotation, scale + visual_r juice on
102   left/right press, edition shimmer, `:hit(damage, hit_x, hit_y,
103   source)` for taking contact damage. Stats-driven HP/MP (`stats.lua`).
104 - **`seeker.lua`** (verbatim from `Invoker/seeker.lua`): chase-the-
105   player enemy. Steering = seek + wander + separate
106   (`steering_seek/wander/separate`). `:push(angle, force, duration)`
107   knockback. `:hit(damage, hit_vol)` damage application. `:die` death
108   FX. **`:wall_bump(angle)` is local to attack-template** — see below.
109   Floating HP bar via `draw_health_ui` (`should_show_health_ui` gates
110   by `time - last_damage_time < 2`).
111 - **`fx.lua`** (verbatim from `Invoker/fx.lua`): `fx_hit_circle`,
112   `fx_particle`, `fx_hit_effect`. Each has a `spawn_*` wrapper that
113   registers in the global `fxs` list. `:change_color(fraction, target)`
... [150 more lines]

The file E:\a327ex\attack-template\.claude\CLAUDE.md has been updated successfully. (file state is current in your context — no need to Read it back)

The file E:\a327ex\attack-template\.claude\CLAUDE.md has been updated successfully. (file state is current in your context — no need to Read it back)

The file E:\a327ex\attack-template\.claude\CLAUDE.md has been updated successfully. (file state is current in your context — no need to Read it back)

The file E:\a327ex\attack-template\.claude\CLAUDE.md has been updated successfully. (file state is current in your context — no need to Read it back)

The file E:\a327ex\attack-template\.claude\CLAUDE.md has been updated successfully. (file state is current in your context — no need to Read it back)

340  sync_engine_globals()       -- refresh `time`, etc.
341 [input handling]
342 [random_live_seeker definition + H/K input]
343 camera_update(main_camera)  -- before any entity reads main_camera.mouse
344 p:update(dt)
345 seekers update (reverse-iter prune)
346 fxs update (reverse-iter prune)
347 collision_entities_begin('player','enemy') handler
348 collision_entities_begin('enemy','wall') handler — calls e:wall_bump(r)
349 process_destroy_queue()
350 ```
351 
352 ### Layer hierarchy (draw order, bottom to top)
353 - `floor_layer` — bg fill + walls (drawn first so the rest sits on top)
354 - `game_layer` — player + seekers + fxs (edition-shaded)
355 - `debug_layer` — F2 collider overlay (no edition, no camera)
356 
357 The wall belongs on `floor_layer` so attack visuals on `game_layer` read cleanly above it.
358 
359 ### Anchor 2 procedural style
360 - Game entities are `class()`, with `:new` constructors that call `make_entity(self)` to register an ID, attach plain-field sub-objects (`self.timer = timer_new()`, `self.spring = spring_new()`, `self.collider = collider(self, ...)`), and explicit `:update / :draw / :destroy` methods.
361 - Framework modules are procedural: `timer_update(self.timer, dt)`, `spring_pull(self.spring, ...)`, `layer_rectangle(layer, ...)`. NEVER call methods on framework modules.
362 - Cross-entity references use IDs (`self.target_id = other.id` → `entities[self.target_id]`), not direct pointers.
363 - `entity:kill()` queues, `process_destroy_queue()` finalizes at frame end.
364 
365 ---
366 
367 ## Foundational design decisions
368 
369 These resolve the "open questions" from `findings.md` section 13.
... [100 more lines]

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The file E:\a327ex\attack-template\.claude\CLAUDE.md has been updated successfully. (file state is current in your context — no need to Read it back)

470  ## Common gotchas
471 
472 - **`triangulate` returns 6-number arrays in attack-template** (`{t1[1..6], t2[1..6], ...}`), NOT the v1 index-triple format (`{tri[1], tri[2], tri[3]}`). Adjust draw loops when porting v1 entity code that uses the v1 format.
473 - **`physics_raycast(x1, y1, x2, y2, tags)`** takes a tags TABLE (list of tag strings). Single-element list is `{'wall'}`, not `'wall'`.
474 - **`set_edition(layer, 0)` after every bracketed draw** — the shader uniform persists across subsequent draws on the same layer if you don't reset it.
475 - **Sensor fixtures need `physics_enable_sensor`, not `physics_enable_collision`.** The engine has separate masks for blocking collisions vs sensor events. Projectile (sensor) ↔ enemy uses the sensor enable; player/seeker (solid) ↔ wall uses collision enable. Cost us a debug cycle when projectiles wouldn't fire enemy events.
476 - **Mouse buttons follow LÖVE2D convention** — `mouse:2` = right, `mouse:3` = middle. The engine swaps SDL's native 2↔3 at the event boundary (`sdl_to_anchor_mouse_button` in anchor.c). All downstream code sees the Anchor convention. No mental remap needed.
477 - **`engine_get_typed_text()` must be drained** each frame even if nothing consumes typed input — otherwise SDL's text-input queue fills up after ~32 keypresses and warns per-press forever. main.lua calls it at the top of `update()`.
478 - **Sounds load as originals** (NOT `_lightmed`). Bitcrush + SR-reduce applied at runtime via `sound_tuner` (F3) per the `sound_tuning.lua` table.
479 - **Don't run `./run.bat` yourself** — the user runs and tests. After framework changes, `lua54.exe -e "loadfile('main.lua')"` is the syntax-check (path: `E:/a327ex/Anchor/reference/love-compare/tools/lua54.exe`).
480 
481 ---
482 
483 ## File map
484 
485 ```
486 attack-template/
487 ├── .claude/CLAUDE.md           # this file
488 ├── findings.md                 # v1 attack inventory + port plan
489 ├── main.lua                    # current scene wiring
490 ├── player.lua                  # ported from Invoker
491 ├── seeker.lua                  # ported from Invoker, +wall_bump
492 ├── wall.lua                    # ported from Orblike v1 wall_object (translated)
493 ├── fx.lua                      # hit_circle, particle, hit_effect
494 ├── stats.lua                   # procedural stats / buff machinery
495 ├── projectile.lua              # carrier — straight-line sensor projectile (session 2)
496 ├── area.lua                    # carrier — instant area-of-effect, 3 shapes × jagged × brackets (session 2)
497 ├── sound_tuning.lua            # per-sound DSP tuning table (path → {bits, sr_div})
498 ├── sound_tuner.lua             # F3 tuning UI module (session 2)
499 ├── edition.lua                 # from edition-template
... [30 more lines]

The file E:\a327ex\attack-template\.claude\CLAUDE.md has been updated successfully. (file state is current in your context — no need to Read it back)

CLAUDE.md is now current — carriers (beam + flicker added), fx_effect, the slash/dot_tick sounds, the 5-layer stack, hit-stop, the full keybinding table, the port order (projectile/area/beam/flicker ✅, polygonal next), and the file map. Code docstrings were kept current as we went.

Ending the session now.

Launching skill: end-session

Base directory for this skill: E:\a327ex.claude\skills\end-session

End Session Workflow

This skill is invoked from the same conversation where the work was done. You already have the full session context in memory — you do NOT need to read the transcript.

Step 1: Get Session Info

Ask the user for the session title (max 30 characters). Examples: "Anchor Phase 10 Part 5", "Physics Arena Setup", "Timer System Fix", "Thalien Lune Design".

Determine the project yourself from your session context — you know which repo(s) were worked on, which files were created/modified, and where they live. No need to ask. See Step 5 for the list of known project roots; if the session touched something outside the list, infer the root from the paths you actually edited.

Step 2: Write Summary

Write the summary from your conversation memory. You have the full session context — no need to read any files.

The summary should be thorough and detailed. Each major topic deserves its own section with multiple specific bullet points. Don't compress — expand.

Purpose: These summaries serve as searchable records. Future Claude instances will grep through past logs to find how specific topics were handled. The more detail you include, the more useful the summary becomes for finding relevant context later.

Format (this is just an example structure — adapt sections to match what actually happened):

# [Title]

## Summary

[1-2 sentence overview of the session's main focus]

**[Topic 1 - e.g., "Spring Module Implementation"]:**
- First specific detail about what was done
- Second detail - include file names, function names
- User correction or feedback (quote if notable)
- Technical decisions and why

**[Topic 2 - e.g., "Camera Research"]:**
- What was researched
- Key findings
- How it influenced implementation

**[Topic 3 - e.g., "Errors and Fixes"]:**
- Specific error message encountered
- Root cause identified
- How it was fixed

[Continue for each major topic...]

---

[Rest of transcript follows]

Rules: - Be thorough — If in doubt, include more detail, not less. Each topic should be as detailed as possible while still being a summary. - Think searchability — Future instances will search these logs. Include keywords, function names, error messages that someone might grep for. - One section per major topic — Don't combine unrelated work into one section - Chronological order — Sections should match conversation flow - Specific details — Error messages, file names, function names, parameter values - Include user quotes — When user gave notable feedback, quote it (e.g., "k/d variables are not intuitive at all") - Weight planning equally — Research, proposals, alternatives considered, user feedback on approach are as important as implementation - Weight problems solved — Errors, root causes, fixes, user corrections all matter - Technical specifics — Include formulas, API signatures, parameter changes when relevant

Step 3: Proceed Without Approval

Do NOT show the summary to the user for approval. Write it directly. The user can review the committed log after the fact and request a follow-up edit if anything is off.

Step 4: Convert Transcript and Write the Log File

# Find recent sessions (Claude + Cursor + Codex). Same script lives in Anchor2:
python E:/a327ex/Anchor2/scripts/find-recent-session.py --limit 5
# or: python E:/a327ex/Anchor/scripts/find-recent-session.py --limit 5

The script shows sessions sorted by when they ended. The first result is the current conversation (since end-session was invoked here). Use it.

Use a lowercase hyphenated slug derived from the title (e.g., "anchor-primitives-hitstop-animation").

Get the end timestamp for the Date frontmatter — this is the wall-clock time when end-session was invoked, NOT the time the JSONL started. Sessions often span multiple days, and the log should be filed under the day the work was wrapped up:

date "+%Y-%m-%d %H:%M:%S"

Use this output verbatim. Do not substitute the JSONL start timestamp; the log appears in the sidebar sorted by Date, and a multi-day session with a Date pinned to day 1 will sort below sessions that ended later but started later, hiding the most recent work.

Convert the transcript to markdown:

python E:/a327ex/Anchor2/scripts/jsonl-to-markdown.py [SESSION_PATH] /tmp/session-log.md
# or: python E:/a327ex/Anchor/scripts/jsonl-to-markdown.py ...

The same script auto-detects Claude Code JSONL vs Cursor/Composer agent JSONL (~/.cursor/projects/.../agent-transcripts/...) vs Codex rollouts (~/.codex/sessions/...). For Composer sessions, use find-recent-session.py (it merges all sources) and pick the [cursor] line for the current chat.

Replace the default header (# Session YYYY-MM-DD...) at the top of /tmp/session-log.md with the approved title and summary, AND prepend frontmatter. The final file shape:

Title: [Title]
Date: YYYY-MM-DD HH:MM:SS

# [Title]

## Summary

[approved summary text from step 2]

---

[transcript content from jsonl-to-markdown script]

Frontmatter is non-negotiable. Every log file MUST start with Title: and Date: lines. Without them, the site's sidebar shows the slug as the title and 0 (epoch) as the sort date. The backfill script in a327ex-site/deploy/backfill_metadata.py is a safety net, not a substitute — write it correctly the first time.

Then copy the final file to the log destination:

cp /tmp/session-log.md E:/a327ex/a327ex-site/logs/[slug].md

Step 5: Commit Project Repo

Identify the project repo(s) worked on this session from your own context — you already know which repos were touched and which files changed. For the common projects:

Project	Root	Stage command
Anchor	E:/a327ex/Anchor	git add docs/ framework/ engine/ scripts/ reference/
Anchor2	E:/a327ex/Anchor2	git add framework/ engine/ arena/ reference/ scripts/ docs/ .claude/
emoji-ball-battles	E:/a327ex/emoji-ball-battles	git add -A
invoker	E:/a327ex/Invoker	git add -A
thalien-lune	E:/a327ex/thalien-lune	git add -A
a327ex-site	E:/a327ex/a327ex-site	git add -A (this IS one of the web repos — the log file added in Step 4 is staged here automatically)

For a project not listed, infer the root from the files you actually created or modified this session and stage those. If multiple candidate roots look valid, ask the user which files to stage.

cd into the project root, stage, run git status to verify before committing.

IMPORTANT — FULL SUMMARY IN COMMIT: The commit message MUST include the FULL summary from the log file. Read the summary back from the log file to ensure nothing is missing.

IMPORTANT — COMMIT METHOD: The summary contains backticks, special characters, and markdown that WILL break heredocs and git commit -m. ALWAYS use the file-based method below. NEVER try a heredoc first — it will fail and produce a malformed commit that needs amending.

# Skip until we hit the line "## Summary", then take everything after the next
# blank line until the --- separator that precedes the transcript.
awk '/^## Summary$/{found=1; next} found && NR>1 && /^---$/{exit} found' \
    E:/a327ex/a327ex-site/logs/[slug].md > /tmp/commit_msg.txt

# Prepend the title (plain text, no #) and append attribution
sed -i "1i [Title]\n" /tmp/commit_msg.txt
printf "\nGenerated with [Claude Code](https://claude.com/claude-code)\n\nCo-Authored-By: Claude <noreply@anthropic.com>\n" >> /tmp/commit_msg.txt

git commit -F /tmp/commit_msg.txt

Step 6: Push the Repos

Two pushes — project (to GitHub) and a327ex-site (to the VPS):

# Project repo to GitHub. Skip this push if the project IS a327ex-site
# (handled by the second push below — don't duplicate).
git push origin main

# a327ex-site to the VPS (post-receive hook restarts the Lua server).
cd E:/a327ex/a327ex-site
git add -A
git commit -m "[Title]"
git push prod main 2>&1 | tail -3

Failure handling: if either push fails, the other still happens. Local commits stay intact, so the user can re-push manually once they've fixed whatever blocked it. Don't roll back; the committed state on disk is the source of truth.

Step 7: Confirm

Tell the user: - Project commit hash + GitHub push result - a327ex-site commit hash + VPS push result

Format:

Logged — "[Title]".
  project (Anchor2):  abc1234  pushed to GitHub
  a327ex-site:        ghi9012  pushed to a327ex.com (post-receive deployed)

If a push failed, surface that explicitly with the error.

Notes

• Frontmatter is non-negotiable. Every log file MUST have Title: and Date: at the top. Enforced at write time in step 4. The backfill script is a safety net, not a substitute.
• If the project IS a327ex-site (e.g., you spent the session writing the renderer or fixing the theme), there's no separate "project repo to GitHub" push — the a327ex-site push at the end IS the project push. Don't duplicate.
• Legacy note: this skill used to also dual-write to anchor.blot.im/logs/ and anchor.blot.im/context/. Post-cutover (May 2026), anchor.blot.im is a JS redirect to a327ex.com and no longer receives content. Drop those steps if you find any older docs that still reference them.

ARGUMENTS: Attack System Generalization 3

2026-05-20T20:34:50.010Z dd3ecde1-3cb1-4313-83d4-c4a70e472cbe [claude] <-- MOST RECENT
   C:\Users\adn\.claude\projects\E--a327ex\dd3ecde1-3cb1-4313-83d4-c4a70e472cbe.jsonl

2026-05-20T16:31:14.672Z 928a6664-ad51-4697-a25f-b60224a1210a [claude]
   C:\Users\adn\.claude\projects\E--a327ex\928a6664-ad51-4697-a25f-b60224a1210a.jsonl

2026-05-20T15:09:08.721Z 13e244ef-3ffd-4276-ad90-5f800435a664 [claude]
   C:\Users\adn\.claude\projects\E--a327ex\13e244ef-3ffd-4276-ad90-5f800435a664.jsonl

2026-05-19T21:45:20.007Z c8a665b6-38ad-4685-b3a9-3b74ee640edc [claude]
   C:\Users\adn\.claude\projects\E--a327ex\c8a665b6-38ad-4685-b3a9-3b74ee640edc.jsonl

2026-05-19T21:29:18.287Z 76c7090a-877e-4324-8d1f-81cddc3638d4 [claude]
   C:\Users\adn\.claude\projects\E--a327ex\76c7090a-877e-4324-8d1f-81cddc3638d4.jsonl

=== timestamp ===
2026-05-20 17:35:17