EBB UI 2
Summary
Session focused on redesigning the cooldown bar positioning system, creating a general indicator layout system (later shelved as dead code for future use), and researching the bow weapon from emojunky-one.
Cooldown Bar Improvement — Initial Design:
- Started by reviewing the cooldown_bar class (lines 1632–1677 in
main.yue) which rendered above the ball at fixed 18px offset - User wanted both HP bar and cooldown bar below the ball, with HP bar closer and cooldown bar below it
- Dynamic positioning: when HP bar is hidden, cooldown bar slides up to the closer slot
- Ready indicator: small white square when weapon is ready to fire (later removed)
- Smooth slide animation between positions via
math.lerp_dt(0.9, 0.15, dt, ...)
General Indicator Layout System:
- User requested a general system instead of hardcoded two-bar positioning, citing future status effect stacking needs (see
todo.md) - First proposal:
@indicatorstable with ordered references — rejected because separate reference lists risk object leaks - Second proposal: indicators as children of an
@indicatorscontainer object — rejected because@parent.parentaccess pattern is ugly - Final approach: tag-based system — hp_bar and cooldown_bar tag themselves as
'indicator', ball iterates@childrenchecking for the tag and.visibleattribute, assigns stackingtarget_yoffsets - User correction: "This should just be a .visible attribute instead of a method" — changed
is_visible()method to plain@visibleattribute - System was implemented, tested, then user decided to shelve it: "Let's keep the indicator system as it is now, we will not use it anymore but let's keep the logic there for when we do the stack system, which will appear above the ball"
- Indicator loop commented as dead code in ball's update with explanatory note
Cooldown Bar Moved to Weapon UI:
- After shelving the indicator system, cooldown bar was moved to render below the weapon icon in
weapon_uiclass - Positioned at
weapon_y + 16(below the weapon emoji in the corner HUD) - hp_bar reverted to its original fixed
@offset_y = 18positioning - User changed the cooldown_bar drawing to use
rounded_rectanglewith radius 3 and@h = 4
CLAUDE.md Update — Build Policy:
- User: "You don't need to run the project after you make changes" → "No, don't even compile, if an error happens I'll tell you"
- Updated CLAUDE.md: game projects (emoji-ball-battles) — don't build or run; engine/framework (Anchor/) — build to verify compilation, never run
Bow Weapon Research (emojunky-one):
- Read through
emoji-ball-battles/reference/emojunky-one/Lua source code - Key findings from emojunky-one's bow: charge-based power (pull 0-8px maps to 0-50 velocity), 45-degree fixed diagonal aim, movement speed halved during charge, bowstring stretching visual, arrows stick to walls for 1-2 seconds, damage scales with velocity
- EBB bow design notes from user: auto-attack (not charge-based), increases number of projectiles per hit, uses same raycast alignment mechanic as gun/sword for firing
- Findings saved to
emoji-ball-battles/reference/bow-reference.mdwith file/line references
Hello, let's continue with Emoji Ball Battles. Check the last logs summary @anchor.blot.im\logs\ebb-sword.md. Also check the project's current state and all relevant files. We last implement the cooldown UI, I'd like to improve it.
Let me start by reading the log summary and getting acquainted with the project state.
Read (E:\a327ex\anchor.blot.im\logs\ebb-sword.md)
<tool_use_error>File content (327.2KB) exceeds maximum allowed size (256KB). Please use offset and limit parameters to read specific portions of the file, or use the GrepTool to search for specific content.</tool_use_error>
Read (E:\a327ex\emoji-ball-battles\main.yue)
<tool_use_error>Sibling tool call errored</tool_use_error>
Read (E:\a327ex\website\notes\Anchor Engine Overview.md)
<tool_use_error>Sibling tool call errored</tool_use_error>
The log file is very large. Let me read the end of it and the other files.
Bash (wc -l "E:/a327ex/emoji-ball-battles/main.yue")
2860 E:/a327ex/emoji-ball-battles/main.yue
Read (E:\a327ex\anchor.blot.im\logs\ebb-sword.md)
7200→Rewritten built anchor/math.lua
7201→Rewritten built anchor/object.lua
7202→Rewritten built anchor/random.lua
7203→Rewritten built anchor/shake.lua
7204→Rewritten built anchor/spring.lua
7205→Rewritten built anchor/spritesheet.lua
7206→Rewritten built anchor/timer.lua</code></pre>
7207→
7208→</details>
7209→
7210→Compiled cleanly. Go ahead and run it — the cooldown bar should appear along the weapon after firing (gun) or after a thrust ends (sword), filling left-to-right as the cooldown completes.
7211→
7212→> Let's have it above the player instead. UI shouldn't really move is what I learned.
7213→
7214→
7215→
7216→
7217→
7218→Makes sense — same lesson as status_text. Here's the change to `late_update`:
7219→
7220→```yuescript
7221→ late_update: (dt) =>
7222→ return unless @active
7223→ p = @parent
7224→ @layer\push p.x, p.y - @perpendicular_offset, 0, 1, 1
7225→ @layer\rectangle -@w/2, -@h/2, @w, @h, @bg_color!
7226→ @layer\rectangle -@w/2, -@h/2, @w*@progress, @h, @fill_color!
7227→ @layer\pop!
7228→```
7229→
... [167 more lines]
Read (E:\a327ex\emoji-ball-battles\main.yue)
File content (39382 tokens) exceeds maximum allowed tokens (25000). Please use offset and limit parameters to read specific portions of the file, or use the GrepTool to search for specific content.
Now let me read the cooldown_bar class and its usage in main.yue.
Read (E:\a327ex\emoji-ball-battles\main.yue)
1→global *
2→
3→require('anchor')
4→ width: 480
5→ height: 270
6→ scale: 3
7→
8→-- Game dimensions
9→gw, gh = an.width, an.height
10→
11→-- Twitter emoji color palette
12→white = color 255, 255, 255
13→black = color 0, 0, 0
14→gray = color 128, 128, 128
15→bg_color = color 48, 49, 50
16→fg = color 231, 232, 233
17→fg_dark = color 201, 202, 203
18→yellow = color 253, 205, 86
19→star_yellow = color 255, 172, 51
20→orange = color 244, 146, 0
21→blue = color 83, 175, 239
22→green = color 122, 179, 87
23→red = color 223, 37, 64
24→purple = color 172, 144, 216
25→brown = color 195, 105, 77
26→wall_color = fg\clone!\mix yellow, 0.1
27→
28→-- Sky colors (subtle blue gradient)
29→sky_top = color 135, 206, 235 -- light sky blue
30→sky_bottom = color 231, 232, 233 -- same as fg (off-white)
... [70 more lines]
Grep (cooldown_bar)
1185- @max_hp = 50
1186- @hp = @max_hp
1187- @\add hp_bar!
1188: @\add cooldown_bar!
1189-
1190- -- Weapon effect tracking
1191- @hits_landed = 0
--
1500- @gun_ready = false
1501- cooldown = math.max(@minimum_cooldown, @base_cooldown - @hits_landed * @cooldown_reduction_per_hit)
1502- @timer\after cooldown, 'gun_cooldown', -> @gun_ready = true
1503: @cooldown_bar\activate cooldown
1504-
1505- -- Check for burstfire
1506- burstfire_chance = @burstfire_chance_increase_per_hit * @hits_landed
--
1570- @time_below_base = 0
1571- @thrust_text.stopped = true if @thrust_text
1572- @timer\after @thrust_cooldown, 'thrust_cooldown', -> @thrust_ready = true
1573: @cooldown_bar\activate @thrust_cooldown
1574-
1575- flash_ball: (duration=0.15) =>
1576- @ball_flashing = true
--
1629-
1630-
1631-
1632:class cooldown_bar extends object
1633- new: (args={}) =>
1634: super 'cooldown_bar'
... [3 more lines]
Read (E:\a327ex\emoji-ball-battles\main.yue)
1632→class cooldown_bar extends object
1633→ new: (args={}) =>
1634→ super 'cooldown_bar'
1635→ @layer = args.layer or ui
1636→ @position = args.position or 'above' -- 'above' or 'below'
1637→ @w = args.w or 20
1638→ @h = args.h or 3
1639→ @perpendicular_offset = args.perpendicular_offset or 18
1640→ @bg_color = args.bg_color or (color 0, 0, 0, 160)
1641→ @fill_color = args.fill_color or (color 255, 255, 255)
1642→ @progress = 1
1643→ @duration = 0
1644→ @elapsed = 0
1645→ @active = false
1646→
1647→ activate: (duration) =>
1648→ @duration = duration
1649→ @elapsed = 0
1650→ @progress = 0
1651→ @active = true
1652→
1653→ update: (dt) =>
1654→ if @active
1655→ @elapsed += dt
1656→ @progress = math.min(1, @elapsed/@duration)
1657→ if @progress >= 1
1658→ @active = false
1659→
1660→ late_update: (dt) =>
1661→ return unless @active
... [30 more lines]
Read (E:\a327ex\emoji-ball-battles\main.yue)
1170→
1171→ -- Springs for visual feedback
1172→ @\add spring!
1173→ @spring\add 'hit', 1
1174→ @spring\add 'weapon', 1
1175→ @spring\add 'squash_x', 1
1176→ @spring\add 'squash_y', 1
1177→
1178→ -- Flash state for weapon
1179→ @weapon_flashing = false
1180→ @thrusting = false -- sword thrust state
1181→ @weapon_recoil = 0 -- rotation offset for gun recoil animation
1182→ @weapon_recoil_offset = 0 -- position offset for gun recoil (moves toward ball)
1183→
1184→ -- HP
1185→ @max_hp = 50
1186→ @hp = @max_hp
1187→ @\add hp_bar!
1188→ @\add cooldown_bar!
1189→
1190→ -- Weapon effect tracking
1191→ @hits_landed = 0
1192→ @base_damage = 1 -- all weapons start at 1 damage
1193→ @base_cooldown = 1.2
1194→ @cooldown_reduction_per_hit = 0.02 -- reaches 0.2s minimum in 50 hits
1195→ @minimum_cooldown = 0.2
1196→ @burstfire_chance_increase_per_hit = 0.01 -- 1% per hit
1197→ @base_burstfire_delay = 0.4
1198→ @minimum_burstfire_delay = 0.05
1199→ @burstfire_delay_reduction_per_hit = (0.4 - 0.05) / 50 -- reaches 0.05s in 50 hits
... [20 more lines]
Now let me read a bit more context from the log to understand the broader discussion about the cooldown UI.
Read (E:\a327ex\anchor.blot.im\logs\ebb-sword.md)
7100→
7101→<pre><code>The file E:\a327ex\emoji-ball-battles\main.yue has been updated successfully.</code></pre>
7102→
7103→</details>
7104→
7105→<details>
7106→<summary><code>Edit (E:\a327ex\emoji-ball-battles\main.yue)</code></summary>
7107→
7108→<pre><code>The file E:\a327ex\emoji-ball-battles\main.yue has been updated successfully.</code></pre>
7109→
7110→</details>
7111→
7112→Now the activation calls:
7113→
7114→<details>
7115→<summary><code>Read (E:\a327ex\emoji-ball-battles\main.yue)</code></summary>
7116→
7117→<pre><code>1508→
7118→ 1509→ -- Gun callback: fire projectile with effects
7119→ 1510→ gun_fire: =>
7120→ 1511→ @gun_ready = false
7121→ 1512→ cooldown = math.max(@minimum_cooldown, @base_cooldown - @hits_landed * @cooldown_reduction_per_hit)</code></pre>
7122→
7123→</details>
7124→
7125→<details>
7126→<summary><code>Read (E:\a327ex\emoji-ball-battles\main.yue)</code></summary>
7127→
7128→<pre><code>1593→ @spring\pull 'squash_y', -amount*0.5, 3, 0.5
7129→ 1594→ else
... [70 more lines]
Good, I have the full picture now. Here's the current state of the cooldown_bar (lines 1632–1667 in main.yue):
- Renders above the ball at a fixed offset (18px)
- Simple black background rectangle + white fill rectangle
- Fills left-to-right as cooldown progresses
- Activates after gun fires or sword thrust ends
- Drawn on the
uilayer (no camera shake) - No outline, no animation on appear/disappear
What kind of improvements are you thinking? Here are some directions:
- Visual polish — rounded ends, outline, color changes (e.g. fill color shifts from red→yellow→green as it fills), or pulse/flash when complete
- Appear/disappear animation — fade in when activated, flash or pop when cooldown completes, then fade out
- Size/position tweaks — thinner/thicker, different offset, scale relative to ball size
- Integration with outline system — draw on
ui_outlinelayer too so it gets the game's outline treatment - Something else entirely — circular cooldown, pie/arc indicator, cooldown on the weapon itself
What did you have in mind?
<local-command-caveat>Caveat: The messages below were generated by the user while running local commands. DO NOT respond to these messages or otherwise consider them in your response unless the user explicitly asks you to.</local-command-caveat>
<command-name>/context</command-name>
<command-message>context</command-message>
<command-args></command-args>
<local-command-stdout> [1mContext Usage[22m
[38;2;136;136;136m⛁ ⛀ [38;2;153;153;153m⛁ ⛁ ⛁ ⛁ ⛁ ⛁ ⛁ ⛁ [39m [38;2;153;153;153mclaude-opus-4-6 · 39k/200k tokens (19%)[39m
[38;2;215;119;87m⛁ [38;2;255;193;7m⛀ [38;2;147;51;234m⛁ ⛁ ⛁ ⛁ ⛁ ⛁ ⛁ ⛁ [39m
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[38;2;153;153;153m⛶ ⛶ ⛶ ⛶ ⛶ ⛶ ⛶ ⛶ ⛶ ⛶ [39m [38;2;136;136;136m⛁[39m System prompt: [38;2;153;153;153m3.2k tokens (1.6%)[39m
[38;2;153;153;153m⛶ ⛶ ⛶ ⛶ ⛶ ⛶ ⛶ ⛶ ⛶ ⛶ [39m [38;2;153;153;153m⛁[39m System tools: [38;2;153;153;153m16.7k tokens (8.3%)[39m
[38;2;153;153;153m⛶ ⛶ ⛶ ⛶ ⛶ ⛶ ⛶ ⛶ ⛶ ⛶ [39m [38;2;215;119;87m⛁[39m Memory files: [38;2;153;153;153m1.6k tokens (0.8%)[39m
[38;2;153;153;153m⛶ ⛶ ⛶ ⛶ ⛶ ⛶ ⛶ ⛶ ⛶ ⛶ [39m [38;2;255;193;7m⛁[39m Skills: [38;2;153;153;153m92 tokens (0.0%)[39m
[38;2;153;153;153m⛶ ⛶ ⛶ ⛶ ⛶ ⛶ ⛶ ⛶ ⛶ ⛶ [39m [38;2;147;51;234m⛁[39m Messages: [38;2;153;153;153m18.4k tokens (9.2%)[39m
[38;2;153;153;153m⛶ ⛶ ⛶ ⛝ ⛝ ⛝ ⛝ ⛝ ⛝ ⛝ [39m [38;2;153;153;153m⛶[39m Free space: [38;2;153;153;153m127k (63.5%)[39m
[38;2;153;153;153m⛝ ⛝ ⛝ ⛝ ⛝ ⛝ ⛝ ⛝ ⛝ ⛝ [39m [38;2;153;153;153m⛝ Autocompact buffer: 33k tokens (16.5%)[39m
[1mMemory files[22m[38;2;153;153;153m · /memory[39m
└ .claude\CLAUDE.md: [38;2;153;153;153m1.5k tokens[39m
└ C:\Users\adn\.claude\projects\E--a327ex\memory\MEMORY.md: [38;2;153;153;153m113 tokens[39m
[1mSkills[22m[38;2;153;153;153m · /skills[39m
[38;2;153;153;153mProject[39m
└ end-session: [38;2;153;153;153m31 tokens[39m</local-command-stdout>
I'd like to add a system such that both cooldown bar and HP bar appear below the player, but because HP bar only appears right after damage taken, the system needs to handle when it's removed/added and handle each case properly. If both bars are visible, the cooldown bar should always be below the HP bar. If the cooldown is ready to fire, it should instead draw a simple white square in the middle instead of the bar. This square should follow the same rules as cooldown bar in terms of its positioning. Does this make sense?
Let me check the current hp_bar implementation first.
Grep (class hp_bar)
1599:class hp_bar extends object
Read (E:\a327ex\emoji-ball-battles\main.yue)
1599→class hp_bar extends object
1600→ new: (args={}) =>
1601→ super 'hp_bar'
1602→ @offset_y = args.offset_y or 18 -- below the parent
1603→ @w = args.w or 22
1604→ @h = args.h or 4
1605→ @duration = args.duration or 1.5
1606→ @bg_color = args.bg_color or black!
1607→ @fill_color = args.fill_color or red!
1608→ @visible = false
1609→ @\add timer!
1610→ @\add spring!
1611→
1612→ update: (dt) =>
1613→ x = @parent.x
1614→ y = @parent.y + @offset_y
1615→ fill_w = @w*(@parent.hp/@parent.max_hp)
1616→
1617→ if @visible
1618→ ui\push x, y, 0, @spring.main.x, @spring.main.x
1619→ ui\rounded_rectangle -@w/2, -@h/2, @w, @h, 3, @bg_color
1620→ ui\rounded_rectangle -@w/2, -@h/2, fill_w, @h, 3, @flashing and white! or @fill_color
1621→ ui\pop!
1622→
1623→ activate: =>
1624→ @flashing = true
1625→ @timer\after 0.15, 'flash', -> @flashing = false
1626→ @spring\pull 'main', 0.5, 3, 0.5
1627→ @visible = true
1628→ @timer\after 2, 'visible', -> @visible = false
... [5 more lines]
Now let me also check where hp_bar's activate is called (i.e., when damage is taken).
Grep (hp_bar\activate)
1425- @parent\add damage_number @x, @y - @radius - 10, amount, {duration_multiplier: 0.5}
1426-
1427- -- Show HP bar
1428: @hp_bar\activate!
1429-
1430- -- Update HP UI
1431- @hp_ui\refresh @hp
Good. Now I have the full picture. Let me also check rounded_rectangle availability since hp_bar uses it but cooldown_bar doesn't.
Grep (rounded_rectangle)
No matches found
Grep (rounded_rectangle)
No matches found
Grep (rounded_rectangle)
E:\a327ex\Anchor\docs\ENGINE_API_QUICK.md-20-layer_polygon(layer, vertices, color)
E:\a327ex\Anchor\docs\ENGINE_API_QUICK.md-21-layer_polygon_line(layer, vertices, color, line_width?)
E:\a327ex\Anchor\docs\ENGINE_API_QUICK.md:22:layer_rounded_rectangle(layer, x, y, w, h, radius, color)
E:\a327ex\Anchor\docs\ENGINE_API_QUICK.md:23:layer_rounded_rectangle_line(layer, x, y, w, h, radius, color, line_width?)
E:\a327ex\Anchor\docs\ENGINE_API_QUICK.md-24-layer_push(layer, x?, y?, r?, sx?, sy?)
E:\a327ex\Anchor\docs\ENGINE_API_QUICK.md-25-layer_pop(layer)
--
E:\a327ex\Anchor\docs\ENGINE_API.md-150-```
E:\a327ex\Anchor\docs\ENGINE_API.md-151-
E:\a327ex\Anchor\docs\ENGINE_API.md:152:### layer_rounded_rectangle
[Showing results with pagination = limit: 10, offset: 0]
OK, rounded_rectangle is an engine function exposed through the layer. Makes sense the hp_bar already uses it. Now I understand the full system. Here's what I want to clarify:
The request makes sense. Let me restate it to confirm:
- Both bars below the player — HP bar and cooldown bar both draw below the ball
- HP bar is closer (slot 1), cooldown bar is further below (slot 2) when both visible
- Dynamic positioning — when HP bar is hidden (most of the time), cooldown bar slides up to take slot 1 (the closer position)
- Ready indicator — when cooldown is complete (weapon ready to fire), instead of hiding entirely, show a small white square at the cooldown bar's position
A few questions before I code this:
AskUserQuestion
User has answered your questions: "Should the cooldown bar animate (slide) between slot 1 and slot 2 when the HP bar appears/disappears, or just snap instantly to the correct position?"="Smooth slide", "For the 'ready' white square, what size roughly? Something like 4x4 or 5x5 pixels?"="Same as bar height", "Should the ready square pulse/breathe (scale oscillation) to indicate readiness, or stay static?"="Static". You can now continue with the user's answers in mind.
Good — smooth slide, 3x3 static square. Let me check how lerp_dt is used in the codebase to get the parameters right.
Grep (lerp_dt)
1794--- Linear interpolation
1795-math.lerp 0.5, 0, 100 -- 50
1796-
1797--- Frame-rate independent lerp
1798--- Covers p% of distance in t seconds
1799:x = math.lerp_dt 0.9, 1, dt, x, target -- 90% in 1 second
1800-
1801--- Angle interpolation (shortest path)
1802-math.lerp_angle 0.5, 0, math.pi -- pi/2
1803-math.lerp_angle_dt 0.9, 1, dt, angle, target_angle
1804-```
Let me also check how the ball accesses @hp_bar and @cooldown_bar — I need to understand how named children work.
Grep (@hp_bar|@cooldown_bar)
1428: @hp_bar\activate!
1503: @cooldown_bar\activate cooldown
1573: @cooldown_bar\activate @thrust_cooldown
Grep (def add)
No matches found
Grep (^\s+add:)
35- - If child has a name: creates @[child.name] = child (parent can access child by name)
36- - If parent has a name: creates child[@name] = @ (child can access parent by name)
37- - If a child with the same name already exists, kills the old child first (replacement)
38-
39- Edge cases:
40- - Adding same child twice: child appears twice in @children, both get killed
41- - Adding child that has another parent: child ends up in two parents' arrays (avoid this)
42-
43- Returns: @ (for chaining)
44- ]]
45: add: (child) =>
46- @children[] = child
47- child.parent = @
48- if child.name
49- @[child.name]\kill! if @[child.name]
50- @[child.name] = child
51- if @name
52- child[@name] = @
53- @
54-
55- --[[
Good — add sets named children via @[child.name], so @parent.hp_bar.visible is accessible from cooldown_bar.
Here's my plan for the changes to cooldown_bar:
Positioning:
- Remove
@position/@perpendicular_offset - Two slots below the ball: slot 1 at offset 18 (same as hp_bar), slot 2 at offset 24 (below hp_bar with ~2.5px gap)
- When hp_bar is hidden → cooldown bar targets slot 1
- When hp_bar is visible → cooldown bar slides to slot 2
- Smooth transition via
math.lerp_dt(0.9, 0.15, dt, ...)(~90% in 0.15s, very snappy)
Drawing:
- Always visible in some form
- Active (filling): same bar as now — black bg rect + white fill rect
- Ready (not active): single white
@h x @h(3x3) square, centered at same position
Here's the new class:
class cooldown_bar extends object
new: (args={}) =>
super 'cooldown_bar'
@layer = args.layer or ui
@w = args.w or 20
@h = args.h or 3
@slot1_offset = 18
@slot2_offset = 24
@current_offset_y = @slot1_offset
@bg_color = args.bg_color or (color 0, 0, 0, 160)
@fill_color = args.fill_color or (color 255, 255, 255)
@progress = 1
@duration = 0
@elapsed = 0
@active = false
activate: (duration) =>
@duration = duration
@elapsed = 0
@progress = 0
@active = true
update: (dt) =>
if @active
@elapsed += dt
@progress = math.min(1, @elapsed/@duration)
if @progress >= 1
@active = false
target = @parent.hp_bar and @parent.hp_bar.visible and @slot2_offset or @slot1_offset
@current_offset_y = math.lerp_dt 0.9, 0.15, dt, @current_offset_y, target
late_update: (dt) =>
p = @parent
y = p.y + @current_offset_y
if @active
@layer\push p.x, y, 0, 1, 1
@layer\rectangle -@w/2, -@h/2, @w, @h, @bg_color!
@layer\rectangle -@w/2, -@h/2, @w*@progress, @h, @fill_color!
@layer\pop!
else
@layer\push p.x, y, 0, 1, 1
@layer\rectangle -@h/2, -@h/2, @h, @h, white!
@layer\pop!
No changes needed to hp_bar — it stays as-is. Does this look right?
Hmmm, we should create a more general system. Let's assume that we want as many of these bars as possible below the ball. We'll have to use a similar system later for the status effect stacking (read todo.md for more context). So let's try to create a system that is general instead of specific to this problem. We can create orchestrate this system from each ball itself and then leave the logic for each element in it to be focused only on what it does rather than keeping track and figuring out where it should be.
Glob (**/todo.md)
E:\a327ex\emoji-ball-battles\reference\super-emoji-box\todo.md
E:\a327ex\emoji-ball-battles\reference\super-emoji-invaders\src\todo.md
E:\a327ex\emoji-ball-battles\reference\super-emoji-pairs\src\todo.md
E:\a327ex\emoji-ball-battles\reference\super emoji pop\todo.md
E:\a327ex\emoji-ball-battles\todo.md
Read (E:\a327ex\emoji-ball-battles\todo.md)
1→# TODO
2→
3→*Items ordered by priority (highest first)*
4→
5→This file tracks ideas and future tasks, not active implementation work. Each item should be a self-contained task starting with "- ". Subsections are allowed (indented "- ") but prefer flat, independent tasks over nested structures. The user periodically reorders items so higher priority tasks float to the top. When implementing features, use separate implementation plans rather than this file.
6→
7→- Create letter emoji assets (at minimum: P, B, S, F, K) for status effect identifiers
8→- Implement status effect line UI class that displays a letter + number using emoji assets with recoloring shader
9→- Add status effect container to ball class that tracks active effects and their stack counts
10→- Implement stack consumption logic that triggers the effect and decrements the stack count
11→- Remove status effect line from display when its stack count reaches zero
12→- Apply recoloring shader to status effect lines with a distinct color per effect type
13→- Handle vertical positioning of multiple simultaneous status effect lines above the emoji
14→- UI effect anti-overlap system: tag all floating UI effects (status_text, emoji_text, damage numbers) as spatial UI elements with a bounding box
15→- UI effect anti-overlap system: when spawning a new UI element, query all active UI elements for their current bounding boxes and projected positions
16→- UI effect anti-overlap system: find the closest unoccupied position to the desired spawn point that doesn't visually collide with existing UI elements
17→- UI effect anti-overlap system: account for movement direction/velocity of existing elements (e.g., emoji_text floats upward) when checking for collisions
18→- Fencer class:
19→ - PASSIVE gains fencing stacks per parry (+1 damage per stack, low duration)
20→ - ACTIVE triggers lunge attack (like Earclacks' Lance) at X fencing stacks.
21→ - Synergizes with duration items - even small duration boosts compound into much higher damage.
22→- Spellblade class:
23→ - PASSIVE: swaps weapons periodically between dagger and staff/wand
24→ - Dagger deals physical damage, all physical damage applies Ethereal stacks but deals 0 damage. First magical damage with wand pops ethereal stacks and makes target ethereal for [stacks] seconds.
25→- Musical instrument weapon: adds notes that orbit around caster on hit, +notes per hit
26→- Lightning: periodically deals lightning damage in an area around it, +damage per hit
27→- Item: -X stack threshold. Reduces threshold for any stack-triggered effect (e.g., -1 threshold makes 3-stack Stun trigger at 2 stacks instead).
28→
Good call. Let me look at the ball's update method to understand where to hook in the orchestration.
Read (E:\a327ex\emoji-ball-battles\main.yue)
1130→ @hit_stop_multiplier = 1.0
1131→ @hit_particle_multiplier = 1.0
1132→ @camera_shake_multiplier = 1.0
1133→
1134→ @\add collider 'ball', 'dynamic', 'circle', @radius
1135→ @collider\set_position @x, @y
1136→ @collider\set_restitution 1
1137→ @collider\set_friction 0
1138→ @collider\set_linear_damping 0
1139→
1140→ -- Add weapon hitbox (physical, 0 density so it doesn't affect ball mass/inertia)
1141→ @weapon_shape = @collider\add_box 'weapon', @weapon_hitbox_length, @weapon_hitbox_width, {offset_x: @weapon_hitbox_offset}
1142→ @collider\set_restitution 1, @weapon_shape
1143→ @collider\set_density 0, @weapon_shape
1144→
1145→ -- Add sensor for detecting ball overlaps (passes through balls, generates events)
1146→ @weapon_sensor = @collider\add_box 'weapon_hitbox', @weapon_hitbox_length, @weapon_hitbox_width, {offset_x: @weapon_hitbox_offset, sensor: true}
1147→ @collider\set_restitution 1, @weapon_sensor
1148→ @collider\set_density 0, @weapon_sensor
1149→
1150→ -- Track low vertical velocity time for sliding detection
1151→ @low_vy_time = 0
1152→ @low_vy_threshold = an.random\float 0.5, 1.5
1153→
1154→ -- Initial rotation
1155→ @angle = an.random\angle!
1156→ @collider\set_angle @angle
1157→
1158→ -- Angular velocity guardrails (keeps rotation speed balanced for gameplay)
1159→ @time_above_base = 0 -- how long angular velocity has been above base
... [70 more lines]
Read (E:\a327ex\emoji-ball-battles\main.yue)
1229→ -- Angular velocity guardrails (skip during thrust)
1230→ angular_velocity = @collider\get_angular_velocity!
1231→ angular_speed = math.abs(angular_velocity)
1232→ angular_sign = math.sign(angular_velocity)
1233→
1234→ if not @thrusting
1235→ if angular_speed > @base_angular_velocity
1236→ @time_above_base += dt
1237→ @time_below_base = 0
1238→ if @time_above_base > @above_base_grace_period
1239→ -- Decay toward base (90% of distance in 1 second)
1240→ new_speed = math.lerp_dt(0.9, 1, dt, angular_speed, @base_angular_velocity)
1241→ @collider\set_angular_velocity angular_sign*new_speed
1242→ elseif angular_speed < @base_angular_velocity
1243→ @time_below_base += dt
1244→ @time_above_base = 0
1245→ if @time_below_base > @below_base_grace_period
1246→ -- Increase toward base (90% of distance in 0.5 seconds)
1247→ new_speed = math.lerp_dt(0.9, 0.5, dt, angular_speed, @base_angular_velocity)
1248→ @collider\set_angular_velocity angular_sign*new_speed
1249→ else
1250→ @time_above_base = 0
1251→ @time_below_base = 0
1252→
1253→ -- Dagger swing sound: first at 0.07 rotation, then every full rotation, max 5 times (melee only)
1254→ -- Fixed threshold based on original base (1.5π * 3.5 = 5.25π)
1255→ -- Disabled when base velocity reaches 6.5π (~25 hits)
1256→ -- Only plays within 1.33 seconds of a weapon-weapon or projectile-weapon hit
1257→ @can_swing_sound_time += dt if @weapon_class == 'melee'
1258→ if @weapon_class == 'melee' and @base_angular_velocity < 6.5*math.pi and angular_speed > 4.75*math.pi and @can_swing_sound_time <= 1.33
... [70 more lines]
Read (E:\a327ex\emoji-ball-battles\main.yue)
1329→ -- Squash horizontally, stretch vertically (opposite of floor hit)
1330→ @spring\pull 'squash_y', 0.5, 3, 0.5
1331→ @spring\pull 'squash_x', -0.25, 3, 0.5
1332→ -- Spawn dash particle at ball's bottom, direction opposite to velocity
1333→ particle_angle = math.remap(vx, -100, 100, math.pi/4, 3*math.pi/4) + an.random\float(-math.pi/8, math.pi/8)
1334→ @parent.effects\add dash_particle @x, @y + @radius, {direction: particle_angle}
1335→ else
1336→ @low_vy_time = 0
1337→
1338→ -- Draw ball
1339→ squash_x = @spring.squash_x.x
1340→ squash_y = @spring.squash_y.x
1341→ hit_scale = @spring.hit.x
1342→
1343→ -- Thrust squash values (used by both ball and weapon draw)
1344→ squash_t, stretch_amount, squeeze_amount = 0, 0, 0
1345→ if @thrusting
1346→ squash_t = math.sin(@thrust_progress*math.pi)
1347→ thrust_speed = math.lerp(math.quad_out(@thrust_progress), @thrust_start_speed, @thrust_end_speed)
1348→ speed_factor = math.clamp(math.remap(thrust_speed, 400, 600, 0, 1), 0, 1)
1349→ stretch_amount = math.lerp(speed_factor, 0.4, 0.6)
1350→ squeeze_amount = math.lerp(speed_factor, 0.2, 0.3)
1351→
1352→ -- Spawn afterimages during thrust
1353→ if @thrusting
1354→ @afterimage_timer += dt
1355→ if @afterimage_timer >= 0.03
1356→ @afterimage_timer = 0
1357→ thrust_stretch_ai = 1 + stretch_amount*squash_t
1358→ thrust_squeeze_ai = 1 - squeeze_amount*squash_t
... [70 more lines]
Good thinking. Here's the design I'd propose:
Ball orchestrates positioning. It keeps an ordered list @indicators of all below-ball UI elements. Each frame, it iterates through them, assigns target_y offsets to visible ones, stacking them downward. Each indicator only knows how to draw itself and whether it's visible — it doesn't know or care about other indicators.
Indicator contract — each element needs:
is_visible()— should I take up a slot right now?@h— my height (for stacking math)@target_y/@current_y— ball writestarget_y, indicator lerpscurrent_ytoward it
Three changes:
1. Ball class — after creating hp_bar and cooldown_bar:
yuescript
@indicators = {@hp_bar, @cooldown_bar}
And a method called each frame:
yuescript
update_indicators: =>
y = 18
gap = 3
for indicator in *@indicators
if indicator\is_visible!
indicator.target_y = y
y += indicator.h + gap
2. hp_bar — add is_visible, use target_y/current_y instead of fixed offset_y:
```yuescript
is_visible: => @visible
update: (dt) => @current_y = math.lerp_dt 0.9, 0.15, dt, @current_y, @target_y x = @parent.x y = @parent.y + @current_y -- rest of drawing unchanged ```
3. cooldown_bar — always visible, draws bar or ready square: ```yuescript is_visible: => true
update: (dt) => if @active @elapsed += dt @progress = math.min(1, @elapsed/@duration) if @progress >= 1 @active = false @current_y = math.lerp_dt 0.9, 0.15, dt, @current_y, @target_y
late_update: (dt) => p = @parent y = p.y + @current_y if @active -- filling bar else -- 3x3 white square ```
Future status effects just get appended to @indicators when created, removed when killed. The stacking handles itself.
Does this design feel right, or would you change anything about the orchestration?
Instead of @indicators being a simple table, we want it as an object @\add object 'indicators', this is the container pattern used elsewhere in the codebase. We want object relationships to always be in the tree system. Don't have a separate method for updating indicators, just do it in ball's update directly. Everything else seems good. Why do you have late_update code?
You're right on all counts. The late_update is leftover from the old implementation where cooldown_bar drew relative to the weapon angle and needed to run after the weapon position was computed. Now that it's just below the ball, there's no reason — everything should be in update like hp_bar does.
Let me check how the container pattern is used elsewhere so I match it correctly.
Grep (\add object ')
263- super 'arena'
264-
265: @\add object 'effects'
266: @\add object 'projectiles'
267- @\add timer!
268-
--
288-
289- -- Create plants container and spawn plant groups
290: @\add object 'plants'
291- @\spawn_plants!
292-
Grep (@effects\add|@projectiles\add|@plants\add)
719- normal_angle = math.angle event.normal_x, event.normal_y
720: @effects\add hit_circle event.point_x, event.point_y, {radius: 6 + 4*intensity, duration: an.random\float(0.15, 0.3), color: yellow, flash_on_spawn: true}
721- for i = 1, an.random\int 1, 3
722: @effects\add hit_particle event.point_x, event.point_y,
723- velocity: intensity*an.random\float(100, 200)
--
788- for i = 1, an.random\int 1, 3
789: @effects\add star_particle x, y,
790- flash_on_spawn: true
--
[Showing results with pagination = limit: 10, offset: 0]
Good — the container pattern is just @\add object 'name', then you add children to it with @name\add child. The container is an object in the tree, children get parented to it.
Now for the indicators, the indicators aren't children of the container in the same way — they're the ball's own hp_bar and cooldown_bar that already exist as children of the ball. The container needs to hold references to them for ordering purposes, but the indicators themselves are still @\add'd directly to the ball (so @parent is the ball).
Actually wait — let me reconsider. If indicators are children of the indicators container instead of the ball, then @parent would be the indicators object, and @parent.parent would be the ball. That changes the access pattern. Let me think about which is cleaner.
AskUserQuestion
User has answered your questions: "Should hp_bar and cooldown_bar be children of the indicators container (so @parent is the container, ball is @parent.parent)? Or should they remain direct children of the ball, with the indicators container just holding references for layout ordering?"="It feels dumb to do @parent.parent, at the same time having an additional list is not a pattern I want to encourage since it increases chances of leaking objects. What do you think the solution should be?". You can now continue with the user's answers in mind.
You're right that @parent.parent is ugly and a separate reference list leaks. Let me think through this...
The add method already sets named back-references: when ball (name='ball') adds indicators (name='indicators'), it sets indicators.ball = ball. When indicators adds hp_bar, it sets hp_bar.indicators = indicators. So from hp_bar, the ball is @indicators.ball — two hops but via named references, not raw .parent.parent.
But honestly, that's still indirect. The simplest clean solution: indicators are children of the container (so they're in the tree, no leak risk), and the ball explicitly sets @ball on each one after adding:
@\add object 'indicators'
@indicators\add hp_bar!
@indicators\add cooldown_bar!
@hp_bar.ball = @
@cooldown_bar.ball = @
Wait — but @hp_bar wouldn't exist on the ball anymore since hp_bar is now a child of indicators, not the ball. It'd be @indicators.hp_bar. So:
@\add object 'indicators'
@indicators\add hp_bar!
@indicators\add cooldown_bar!
@indicators.hp_bar.ball = @
@indicators.cooldown_bar.ball = @
Then in hp_bar/cooldown_bar, @ball gives direct access. And elsewhere in the ball that currently does @hp_bar\activate! would become @indicators.hp_bar\activate! and @cooldown_bar\activate cooldown becomes @indicators.cooldown_bar\activate cooldown.
The layout loop in ball's update iterates @indicators.children. No separate list, no leak — killing an indicator removes it from children.
Does that direction work, or is there something cleaner you'd prefer?
Can't you just make the logic work by having hp_bar and cooldown_bar directly as children of ball?
Yes — just tag them. hp_bar and cooldown_bar both tag themselves as 'indicator' in their constructors. The ball iterates @children, checks for the tag, and assigns positions:
-- In ball update:
y = 18
gap = 3
for child in *@children
if child\is('indicator') and child\is_visible!
child.target_y = y
y += child.h + gap
No container, no separate list, no leak risk, @parent is the ball directly. Add order determines stack order (hp_bar added first = closer to ball). Future status effects just need the 'indicator' tag, an is_visible method, and @h — they'll automatically stack below.
Does that work?
What does is_visible do?
It's a method each indicator defines to tell the layout loop whether it should occupy a slot right now:
- hp_bar:
is_visible: => @visible— only takes a slot when the timed visibility window is active (after taking damage) - cooldown_bar:
is_visible: => true— always takes a slot (draws bar when filling, square when ready) - future status effect: would be something like
is_visible: => @stacks > 0
If is_visible returns false, the layout loop skips it — no slot assigned, doesn't push other indicators down. So when hp_bar's timer expires and it hides, cooldown_bar smoothly slides up to slot 1.
This should just be a .visible attribute instead of a method.
Right. hp_bar already has @visible as an attribute. cooldown_bar just needs @visible = true in its constructor. Status effects would set @visible = false when stacks hit zero. Simpler.
-- In ball update:
y = 18
gap = 3
for child in *@children
if child\is('indicator') and child.visible
child.target_y = y
y += child.h + gap
OK, good. Let's try it.
Let me re-read the exact code blocks I need to edit.
Read (E:\a327ex\emoji-ball-battles\main.yue)
1599→class hp_bar extends object
1600→ new: (args={}) =>
1601→ super 'hp_bar'
1602→ @offset_y = args.offset_y or 18 -- below the parent
1603→ @w = args.w or 22
1604→ @h = args.h or 4
1605→ @duration = args.duration or 1.5
1606→ @bg_color = args.bg_color or black!
1607→ @fill_color = args.fill_color or red!
1608→ @visible = false
1609→ @\add timer!
1610→ @\add spring!
1611→
1612→ update: (dt) =>
1613→ x = @parent.x
1614→ y = @parent.y + @offset_y
1615→ fill_w = @w*(@parent.hp/@parent.max_hp)
1616→
1617→ if @visible
1618→ ui\push x, y, 0, @spring.main.x, @spring.main.x
1619→ ui\rounded_rectangle -@w/2, -@h/2, @w, @h, 3, @bg_color
1620→ ui\rounded_rectangle -@w/2, -@h/2, fill_w, @h, 3, @flashing and white! or @fill_color
1621→ ui\pop!
1622→
1623→ activate: =>
1624→ @flashing = true
1625→ @timer\after 0.15, 'flash', -> @flashing = false
1626→ @spring\pull 'main', 0.5, 3, 0.5
1627→ @visible = true
1628→ @timer\after 2, 'visible', -> @visible = false
... [40 more lines]
Read (E:\a327ex\emoji-ball-battles\main.yue)
1222→ update: (dt) =>
1223→ -- When paused, use dt = 0 so physics logic doesn't run
1224→ dt = 0 if @parent.paused
1225→
1226→ -- Read angle from physics
1227→ @angle = @collider\get_angle!
1228→
1229→ -- Angular velocity guardrails (skip during thrust)
1230→ angular_velocity = @collider\get_angular_velocity!
1231→ angular_speed = math.abs(angular_velocity)
1232→ angular_sign = math.sign(angular_velocity)
1233→
1234→ if not @thrusting
1235→ if angular_speed > @base_angular_velocity
1236→ @time_above_base += dt
Now let me check the end of ball's update to know where to add the indicator loop.
Read (E:\a327ex\emoji-ball-battles\main.yue)
1400→ weapons\image @weapon_image, 0, 0, nil, @weapon_flashing and white!
1401→ weapons\pop!
1402→
1403→ -- Debug draw weapon hitbox
1404→ hitbox_x = @x + @weapon_hitbox_offset*math.cos(@angle)
1405→ hitbox_y = @y + @weapon_hitbox_offset*math.sin(@angle)
1406→ debug_draw\push hitbox_x, hitbox_y, @angle
1407→ -- debug_draw\rectangle -@weapon_hitbox_length/2, -@weapon_hitbox_width/2, @weapon_hitbox_length, @weapon_hitbox_width, red!
1408→ debug_draw\pop!
1409→
1410→ -- Track angular velocity for weight-based collision handling
1411→ @last_angular_velocity = @collider\get_angular_velocity!
1412→
1413→ take_damage: (amount, source) =>
1414→ return unless @parent -- Guard against events before fully added
1415→ @hp -= amount
1416→ @spring\pull 'hit', 0.3, 3, 0.7
1417→ @\flash_ball!
1418→
1419→ -- Sound
Good. Here are the three edits. Let me present them before applying:
1. hp_bar — add 'indicator' tag, replace @offset_y with @target_y/@current_y, add lerp:
class hp_bar extends object
new: (args={}) =>
super 'hp_bar'
@\tag 'indicator'
@w = args.w or 22
@h = args.h or 4
@bg_color = args.bg_color or black!
@fill_color = args.fill_color or red!
@visible = false
@target_y = 18
@current_y = 18
@\add timer!
@\add spring!
update: (dt) =>
@current_y = math.lerp_dt 0.9, 0.15, dt, @current_y, @target_y
x = @parent.x
y = @parent.y + @current_y
fill_w = @w*(@parent.hp/@parent.max_hp)
if @visible
ui\push x, y, 0, @spring.main.x, @spring.main.x
ui\rounded_rectangle -@w/2, -@h/2, @w, @h, 3, @bg_color
ui\rounded_rectangle -@w/2, -@h/2, fill_w, @h, 3, @flashing and white! or @fill_color
ui\pop!
activate: =>
@flashing = true
@timer\after 0.15, 'flash', -> @flashing = false
@spring\pull 'main', 0.5, 3, 0.5
@visible = true
@timer\after 2, 'visible', -> @visible = false
2. cooldown_bar — add 'indicator' tag, @visible = true, target_y/current_y, merge drawing into update, remove late_update:
class cooldown_bar extends object
new: (args={}) =>
super 'cooldown_bar'
@\tag 'indicator'
@w = args.w or 20
@h = args.h or 3
@bg_color = args.bg_color or (color 0, 0, 0, 160)
@fill_color = args.fill_color or (color 255, 255, 255)
@visible = true
@target_y = 18
@current_y = 18
@progress = 1
@duration = 0
@elapsed = 0
@active = false
activate: (duration) =>
@duration = duration
@elapsed = 0
@progress = 0
@active = true
update: (dt) =>
if @active
@elapsed += dt
@progress = math.min(1, @elapsed/@duration)
if @progress >= 1
@active = false
@current_y = math.lerp_dt 0.9, 0.15, dt, @current_y, @target_y
p = @parent
y = p.y + @current_y
if @active
ui\push p.x, y, 0, 1, 1
ui\rectangle -@w/2, -@h/2, @w, @h, @bg_color!
ui\rectangle -@w/2, -@h/2, @w*@progress, @h, @fill_color!
ui\pop!
else
ui\push p.x, y, 0, 1, 1
ui\rectangle -@h/2, -@h/2, @h, @h, white!
ui\pop!
3. Ball update — add indicator layout loop at end (before take_damage):
-- Assign indicator positions below ball
indicator_y = 18
indicator_gap = 3
for child in *@children
if child\is('indicator') and child.visible
child.target_y = indicator_y
indicator_y += child.h + indicator_gap
Does this look right?
Sure.
Edit (E:\a327ex\emoji-ball-battles\main.yue)
The file E:\a327ex\emoji-ball-battles\main.yue has been updated successfully.
Edit (E:\a327ex\emoji-ball-battles\main.yue)
The file E:\a327ex\emoji-ball-battles\main.yue has been updated successfully.
Edit (E:\a327ex\emoji-ball-battles\main.yue)
The file E:\a327ex\emoji-ball-battles\main.yue has been updated successfully.
Now let me build.
Bash (cd E:/a327ex/emoji-ball-battles && ./yue.exe -r main.yue)
Rewritten built main.lua
Compiled clean. The changes:
- hp_bar: tagged
'indicator', usestarget_y/current_ywith lerp instead of fixedoffset_y - cooldown_bar: tagged
'indicator', always visible (@visible = true), draws filling bar when active or 3x3 white square when ready, all inupdate(no morelate_update) - ball update: iterates children, assigns stacking
target_yto visible indicators (18px base, 3px gap)
Increase the distance between each slot by a few pixels, remove the 3x3 ready state.
Edit (E:\a327ex\emoji-ball-battles\main.yue)
The file E:\a327ex\emoji-ball-battles\main.yue has been updated successfully.
Edit (E:\a327ex\emoji-ball-battles\main.yue)
The file E:\a327ex\emoji-ball-battles\main.yue has been updated successfully.
Bash (cd E:/a327ex/emoji-ball-battles && ./yue.exe -r main.yue)
Rewritten built main.lua
Done. Gap increased from 3 to 6 pixels, ready square removed — cooldown bar now only draws when actively filling.
You don't need to run the project after you make changes.
Got it, I'll just compile and leave running to you.
No, don't even compile, if an error happens I'll tell you.
Understood.
Does CLAUDE.md already have guidelines to this nature?
Yes — the "Always Build, Never Run" section says:
After making code changes, build if needed. Never run the executable — the user will run and test themselves.
But it says "build if needed," which is why I've been compiling. If you want me to stop compiling too, I can update that section. Want me to change it to something like "Don't build or run — the user will compile and test themselves"?
Yes, update it. However, make sure this only applies to a game project, not when we're working on the engine or framework.
Read (E:\a327ex.claude\CLAUDE.md)
1→# CLAUDE.md
2→
3→Guidelines for Claude Code instances working in this repository.
4→
5→---
6→
7→## Communication Style
8→
9→Be thorough. Write as much as the subject warrants — explain reasoning, include relevant context, surface adjacent considerations. Stay roughly on topic, but don't truncate for brevity's sake.
10→
11→Critique freely. Ideas, code, plans, artifacts — evaluate them honestly. Avoid sycophancy. Focus on what seems true rather than what's convenient or what you think I'd like to hear. I crave honest appraisal, including when it's uncomfortable.
12→
13→Embrace contradiction. Truth often contains multiple seemingly opposite ideas. Don't censor yourself to avoid inconsistency — multiple perspectives can be correct simultaneously. Present the tension rather than forcing artificial resolution.
14→
15→Express uncertainty. "I'm guessing," "I'm uncertain," "I might be wrong" — these are information, not weakness. False confidence is worse than acknowledged uncertainty.
16→
17→---
18→
19→## Working Style
20→
21→### When to Ask
22→
23→Use the `AskUserQuestion` tool liberally. The developer prefers being asked over having Claude guess wrong.
24→
25→**Ask first:**
26→- Architecture decisions
27→- API design choices
28→- Design decisions (gameplay feel, mechanics, UI)
29→- Anything that could be done multiple valid ways
30→- When uncertain about intent or priorities
... [119 more lines]
Edit (E:\a327ex.claude\CLAUDE.md)
The file E:\a327ex\.claude\CLAUDE.md has been updated successfully.
Updated. Game projects: no build, no run. Engine/framework: build to verify, but don't run.
Let's keep the indicator system as it is now, we will not use it anymore but let's keep the logic there for when we do the stack system, which will appear above the ball. Add a comment to this effect where is more logical, noticing that this is dead code, but it's here for this reason. Let's move the cooldown_bar to below the weapon on the UI instead.
Let me check the weapon_ui class to understand its layout.
Grep (class weapon_ui)
1768:class weapon_ui extends object
Read (E:\a327ex\emoji-ball-battles\main.yue)
1768→class weapon_ui extends object
1769→ new: (@team, weapon_type) =>
1770→ super 'weapon_ui'
1771→ @weapon_type = weapon_type
1772→
1773→ -- Emoji properties
1774→ @emoji_x = if @team == 'player' then 59 else 421
1775→ @emoji_y = 60
1776→ @emoji_image = if @team == 'player' then an.images.cowboy else an.images.no_mouth
1777→ @emoji_hit_image = if @team == 'player' then an.images.cowboy_hit else an.images.no_mouth_hit
1778→ @emoji_scale = 20/512
1779→ @emoji_scale *= 1.1 if @team == 'player'
1780→ @showing_hit = false
1781→ @emoji_oy = 0
1782→
1783→ -- Weapon properties
1784→ @weapon_x = if @team == 'player' then 91 else 389
1785→ @weapon_y = 60
1786→ @weapon_image = if weapon_type == 'gun' then an.images.gun elseif weapon_type == 'sword' then an.images.sword else an.images.dagger
1787→ @weapon_scale = 20/512
1788→ @weapon_flip_x = if @team == 'player' then -1 else 1
1789→
1790→ -- Board properties
1791→ -- @board_y = 102
1792→ -- @board_scale = 102/512
1793→
1794→ -- Text properties
1795→ @text_x = if @team == 'player' then 65 else 400
1796→ @text_y = 92
1797→ @text_oy = 0
... [90 more lines]
I see the weapon_ui layout. The weapon icon is at y=60, and the stat text starts at y=92. The cooldown bar would go below the weapon icon, between it and the text — or below the text. Let me check what "below the weapon" means in this context.
AskUserQuestion
User has answered your questions: "Where exactly below the weapon in the UI? Between the weapon icon (y=60) and the stat text (y=92), or below everything?"="Below weapon icon". You can now continue with the user's answers in mind.
Got it. Here are the changes:
1. Ball update — comment the indicator loop as dead code for future stack system:
-- Indicator layout system (dead code — kept for future status effect stack system above ball)
indicator_y = 18
indicator_gap = 6
for child in *@children
if child\is('indicator') and child.visible
child.target_y = indicator_y
indicator_y += child.h + indicator_gap
2. hp_bar — revert to fixed offset, remove indicator tag/lerp:
class hp_bar extends object
new: (args={}) =>
super 'hp_bar'
@offset_y = args.offset_y or 18
@w = args.w or 22
@h = args.h or 4
@bg_color = args.bg_color or black!
@fill_color = args.fill_color or red!
@visible = false
@\add timer!
@\add spring!
update: (dt) =>
x = @parent.x
y = @parent.y + @offset_y
fill_w = @w*(@parent.hp/@parent.max_hp)
if @visible
ui\push x, y, 0, @spring.main.x, @spring.main.x
ui\rounded_rectangle -@w/2, -@h/2, @w, @h, 3, @bg_color
ui\rounded_rectangle -@w/2, -@h/2, fill_w, @h, 3, @flashing and white! or @fill_color
ui\pop!
3. cooldown_bar — draw below weapon icon in weapon_ui (weapon_y + 16 ≈ y=76):
class cooldown_bar extends object
new: (args={}) =>
super 'cooldown_bar'
@w = args.w or 20
@h = args.h or 3
@bg_color = args.bg_color or (color 0, 0, 0, 160)
@fill_color = args.fill_color or (color 255, 255, 255)
@progress = 1
@duration = 0
@elapsed = 0
@active = false
activate: (duration) =>
@duration = duration
@elapsed = 0
@progress = 0
@active = true
update: (dt) =>
if @active
@elapsed += dt
@progress = math.min(1, @elapsed/@duration)
if @progress >= 1
@active = false
if @active
wx = @parent.weapon_ui.weapon_x
wy = @parent.weapon_ui.weapon_y + 16
ui\push wx, wy, 0, 1, 1
ui\rectangle -@w/2, -@h/2, @w, @h, @bg_color!
ui\rectangle -@w/2, -@h/2, @w*@progress, @h, @fill_color!
ui\pop!
Does this look right?
I changed the cooldown_bar draw code to be a rounded rectangle, so make sure to keep that correct.
Read (E:\a327ex\emoji-ball-battles\main.yue)
1632→
1633→ activate: =>
1634→ @flashing = true
1635→ @timer\after 0.15, 'flash', -> @flashing = false
1636→ @spring\pull 'main', 0.5, 3, 0.5
1637→ @visible = true
1638→ @timer\after 2, 'visible', -> @visible = false
1639→
1640→
1641→
1642→class cooldown_bar extends object
1643→ new: (args={}) =>
1644→ super 'cooldown_bar'
1645→ @\tag 'indicator'
1646→ @w = args.w or 20
1647→ @h = args.h or 4
1648→ @bg_color = args.bg_color or (color 0, 0, 0, 160)
1649→ @fill_color = args.fill_color or (color 255, 255, 255)
1650→ @visible = true
1651→ @target_y = 18
1652→ @current_y = 18
1653→ @progress = 1
1654→ @duration = 0
1655→ @elapsed = 0
1656→ @active = false
1657→
1658→ activate: (duration) =>
1659→ @duration = duration
1660→ @elapsed = 0
1661→ @progress = 0
... [10 more lines]
Read (E:\a327ex\emoji-ball-battles\main.yue)
1670→ @current_y = math.lerp_dt 0.9, 0.15, dt, @current_y, @target_y
1671→ if @active
1672→ p = @parent
1673→ y = p.y + @current_y
1674→ ui\push p.x, y, 0, 1, 1
1675→ ui\rounded_rectangle -@w/2, -@h/2, @w, @h, 3, @bg_color!
1676→ ui\rounded_rectangle -@w/2, -@h/2, @w*@progress, @h, 3, @fill_color!
1677→ ui\pop!
1678→
1679→
1680→
1681→class hp_ui extends object
1682→ new: (team, hp, max_hp) =>
1683→ super 'hp_ui'
1684→ @x = if team == 'player' then 75 else 405
Got it — rounded_rectangle with radius 3, and @h is now 4. Let me also re-read hp_bar to see its current state.
Read (E:\a327ex\emoji-ball-battles\main.yue)
1599→ start_moving: =>
1600→ @collider\set_gravity_scale 1
1601→ @collider\apply_impulse an.random\sign!*an.random\float(5, 10), an.random\float(-10, 10)
1602→ @collider\set_angular_velocity @base_angular_velocity
1603→
1604→
1605→
1606→-- HP bar: temporary bar below entity (added as child)
1607→class hp_bar extends object
1608→ new: (args={}) =>
1609→ super 'hp_bar'
1610→ @\tag 'indicator'
1611→ @w = args.w or 22
1612→ @h = args.h or 4
1613→ @bg_color = args.bg_color or black!
1614→ @fill_color = args.fill_color or red!
1615→ @visible = false
1616→ @target_y = 18
1617→ @current_y = 18
1618→ @\add timer!
1619→ @\add spring!
1620→
1621→ update: (dt) =>
1622→ @current_y = math.lerp_dt 0.9, 0.15, dt, @current_y, @target_y
1623→ x = @parent.x
1624→ y = @parent.y + @current_y
1625→ fill_w = @w*(@parent.hp/@parent.max_hp)
1626→
1627→ if @visible
1628→ ui\push x, y, 0, @spring.main.x, @spring.main.x
... [5 more lines]
Now let me also check the indicator loop in ball's update.
Grep (Assign indicator positions)
1410: -- Assign indicator positions below ball
1411- indicator_y = 18
1412- indicator_gap = 5
1413- for child in *@children
1414- if child\is('indicator') and child.visible
1415- child.target_y = indicator_y
1416- indicator_y += child.h + indicator_gap
Good, now applying all three edits.
Edit (E:\a327ex\emoji-ball-battles\main.yue)
The file E:\a327ex\emoji-ball-battles\main.yue has been updated successfully.
Edit (E:\a327ex\emoji-ball-battles\main.yue)
The file E:\a327ex\emoji-ball-battles\main.yue has been updated successfully.
Edit (E:\a327ex\emoji-ball-battles\main.yue)
The file E:\a327ex\emoji-ball-battles\main.yue has been updated successfully.
Done. Changes:
- Indicator loop: commented as dead code for future stack system
- hp_bar: reverted to fixed
@offset_y = 18, no indicator tag - cooldown_bar: no indicator tag, draws below weapon icon in weapon_ui at
weapon_y + 16, usesrounded_rectanglewith radius 3
Alright. The sword is done for now. Let's start working on the bow. Read @emoji-ball-battles\reference\emojunky-one\ to see how that game does its bow and report your findings.
Glob (*/)
E:\a327ex\emoji-ball-battles\reference\emojunky-one\love\msvcp120.dll
E:\a327ex\emoji-ball-battles\reference\emojunky-one\love\msvcr120.dll
E:\a327ex\emoji-ball-battles\reference\emojunky-one\res\fog.png
E:\a327ex\emoji-ball-battles\reference\emojunky-one\love\game.ico
E:\a327ex\emoji-ball-battles\reference\emojunky-one\love\love.ico
E:\a327ex\emoji-ball-battles\reference\emojunky-one\love\changes.txt
E:\a327ex\emoji-ball-battles\reference\emojunky-one\love\license.txt
E:\a327ex\emoji-ball-battles\reference\emojunky-one\love\readme.txt
E:\a327ex\emoji-ball-battles\reference\emojunky-one\love\OpenAL32.dll
E:\a327ex\emoji-ball-battles\reference\emojunky-one\love\SDL2.dll
E:\a327ex\emoji-ball-battles\reference\emojunky-one\love\lua51.dll
E:\a327ex\emoji-ball-battles\reference\emojunky-one\love\mpg123.dll
E:\a327ex\emoji-ball-battles\reference\emojunky-one\love\love.dll
E:\a327ex\emoji-ball-battles\reference\emojunky-one\love\love.exe
E:\a327ex\emoji-ball-battles\reference\emojunky-one\love\lovec.exe
E:\a327ex\emoji-ball-battles\reference\emojunky-one\res\ComicHelvetic_Light.otf
E:\a327ex\emoji-ball-battles\reference\emojunky-one\res\ComicHelvetic_Medium.otf
E:\a327ex\emoji-ball-battles\reference\emojunky-one\res\ComicHelvetic_Heavy.otf
E:\a327ex\emoji-ball-battles\reference\emojunky-one\res\gamecontrollerdb.txt
E:\a327ex\emoji-ball-battles\reference\emojunky-one\ripple.lua
E:\a327ex\emoji-ball-battles\reference\emojunky-one\res\slight_smile.png
E:\a327ex\emoji-ball-battles\reference\emojunky-one\res\laughing.png
E:\a327ex\emoji-ball-battles\reference\emojunky-one\res\herb.png
E:\a327ex\emoji-ball-battles\reference\emojunky-one\res\blossom.png
E:\a327ex\emoji-ball-battles\reference\emojunky-one\res\rose.png
E:\a327ex\emoji-ball-battles\reference\emojunky-one\res\tulip.png
E:\a327ex\emoji-ball-battles\reference\emojunky-one\res\sunflower.png
E:\a327ex\emoji-ball-battles\reference\emojunky-one\res\seedling.png
E:\a327ex\emoji-ball-battles\reference\emojunky-one\res\four_leaf_clover.png
E:\a327ex\emoji-ball-battles\reference\emojunky-one\res\sheaf.png
... [71 more lines]
Glob (*.lua)
E:\a327ex\emoji-ball-battles\reference\emojunky-one\ripple.lua
E:\a327ex\emoji-ball-battles\reference\emojunky-one\particles.lua
E:\a327ex\emoji-ball-battles\reference\emojunky-one\ui.lua
E:\a327ex\emoji-ball-battles\reference\emojunky-one\statics.lua
E:\a327ex\emoji-ball-battles\reference\emojunky-one\main.lua
E:\a327ex\emoji-ball-battles\reference\emojunky-one\maps.lua
E:\a327ex\emoji-ball-battles\reference\emojunky-one\entities.lua
E:\a327ex\emoji-ball-battles\reference\emojunky-one\decorations.lua
E:\a327ex\emoji-ball-battles\reference\emojunky-one\aika.lua
Task (Search bow code in emojunky-one)
[
{
"type": "text",
"text": "Excellent! Now I have a comprehensive picture. Let me create a final summary of all the bow/arrow mechanics I found.\n\n## Summary: Bow and Arrow Weapon System in Emojunky-One\n\nBased on my search through the Lua code, here's the complete breakdown of how the bow/arrow weapon works:\n\n### **Weapon Initialization**\n- **File:** `E:\\a327ex\\emoji-ball-battles\\reference\\emojunky-one\\entities.lua`\n- The bow is one of 10 possible weapons: `{\"gun\", \"shrimp\", \"bow\", \"trumpet\", \"candle\", \"dagger\", \"scissors\", \"watergun\", \"bomb\", \"rocket\"}`\n- Spawned as a weapon pickup (`Box` class) at random locations on the map\n\n### **Player State Variables for Bow** (lines 107-115)\n```lua\nself.bow_r = 0 -- Bow rotation angle\nself.bow_ox = 0 -- Bow X offset for positioning\nself.bow_pull_ox = 0 -- Pull distance (stretch back)\nself.bow_sx = 1 -- Bow X scale (for squash/stretch)\nself.bow_cd = 0.6 -- Cooldown between shots\nself.bow_timer = 0.6 -- Cooldown timer\nself.arrow_r = 0 -- Arrow rotation angle\nself.arrow_ox = 0 -- Arrow X offset\nself.arrow_a = 0 -- Arrow alpha (fade in/out)\n```\n\n### **Aiming Mechanism** (lines 331-335)\nThe bow always aims diagonally upward:\n- **Facing right:** `bow_r = \u03c0/2 + \u03c0/4` (135\u00b0), `arrow_r = \u03c0/4` (45\u00b0 diagonal)\n- **Facing left:** `bow_r = -\u03c0/2 - \u03c0/4` (-135\u00b0), `arrow_r = -\u03c0/4` (-45\u00b0 diagonal)\n\nThe arrow visual position is offset by `arrow_ox = 7` pixels from the bow.\n\n### **Charging Mechanic** (lines 338-369)\n**Activation (on action button press, lines 340-348):**\n- Only activates if cooldown is complete (`bow_timer > bow_cd`)\n- Sets `bow_being_pulled = true`\n- Fades arrow in over 0.1 seconds: `arrow_a` tweens to 1\n- Halves player movement speed: `max_v = base_max_v / 2` (prevents strafing while charging)\n- Resets cooldown timer to 0\n\n**During Pull (lines 366-369):**\n- `bow_pull_ox` (pull distance) smoothly interpolates toward 8 pixels using `lerp2(0.1, dt, ...)`\n- `bow_sx` (scale) grows to 1.15 to show bow stretching\n- Creates visual feedback of charging\n\n**Release (on action button release, lines 350-364):**\n- Immediately restores `max_v = base_max_v` for mobility\n- Resets `bow_being_pulled_2` flag and arrow alpha\n- Animates bow back to normal scale over 0.08s: `bow_sx` tweens to 1 with `cubic_in_out` easing\n- Applies recoil spring effect: `gun_spring:pull(0.5)`\n- Animates pull position back to 0 over 0.2s with `elastic_out` easing\n\n### **Arrow Firing** (lines 359-363)\nThe arrow is spawned as an `EmojiBullet` with type `\"arrow\"`:\n- **Spawn position:**\n - Right: `x + 0.75*width`, `y + bow_offset_y`\n - Left: `x - 0.75*width`, `y + bow_offset_y`\n- **Velocity calculation:** `remap(bow_pull_ox, 0, 8, 0, 50)`\n - Maps the 0-8 pixel pull distance to 0-50 velocity units\n - 0 pixels pulled \u2192 0 velocity (no shot)\n - 8 pixels pulled \u2192 50 velocity (max charge)\n- **Direction:** 0 radians (right) or \u03c0 radians (left)\n- **Cooldown resets** to 0 after firing\n\n### **Visual Rendering** (lines 584-596)\nThe bow weapon is drawn in the `post_draw()` function:\n- Bow image scaled to 18\u00d718 pixels\n- Positioned at `x + direction*(0.75*width + bow_ox)` offset\n- Rotated based on `bow_r` (135\u00b0 or -135\u00b0)\n- **Bowstring visual** (line 591): Tan/brown colored line that shows pulling state:\n - When pulling: Line goes from top anchor \u2192 pulled position \u2192 bottom anchor (creating a bow shape)\n - When not pulling: Vertical straight line\n- **Arrow visual** (line 594): Drawn with `arrow_a` alpha fade\n - Positioned at `x + direction*(0.75*width + bow_ox + arrow_ox - bow_pull_ox)`\n - Moves back as bow pulls (negative offset)\n - Rotated 45\u00b0 or -45\u00b0 (diagonal)\n\n### **Arrow Projectile Behavior** (lines 1046-1107)\n**Initialization (type \"arrow\"):**\n- Hitbox: 18\u00d74 pixels (long and narrow)\n- No gravity: `gravity_scale = 0` (straight-line flight)\n- Restitution 0, friction 1 (no bouncing)\n- Velocity set via impulse: `apply_impulse(v*cos(r), v*sin(r))`\n\n**During Flight (lines 1097-1099):**\n- Arrow automatically rotates to face its velocity direction\n- Calculated as: `self:set_angle(math.atan2(vy, vx))`\n\n### **Arrow Collision Behavior** (lines 1142-1155)\n**On hitting static geometry (walls/platforms, lines 1144-1146):**\n- Arrow becomes \"dead\" (stops existing as projectile)\n- Creates a stuck-arrow decoration at the impact point\n- Offset distance based on velocity: `remap(velocity, 100, 800, 4, 10)` pixels from impact\n- The stuck arrow is `EmojiBulletDead` which:\n - Stays in place for 1-2 seconds\n - Then fades out over 0.2 seconds\n - Disappears completely\n\n**On hitting enemies (lines 1166-1171):**\n- Calculates damage from velocity: `remap(velocity, 100, 800, 1, 5)` HP\n- Knocks enemy in the arrow's direction\n- Creates star particle effects at impact point\n- Arrow is removed\n\n### **Drawing** (lines 1112-1115)\n- Arrow drawn with the emoji rotated 45\u00b0 additional (line 1113: `self.r + math.pi/4`)\n- Centered on collision point\n\n### **Dead Arrow Stuck Visuals** (lines 1182-1206)\n- Stored as `EmojiBulletDead` decoration\n- Stays visible 1-2 seconds before fading out\n- Alpha fades from 1 to 0 over 0.2 seconds\n- Rotated same as when it hit (45\u00b0 additional rotation)\n\n### **Key Design Characteristics**\n1. **Charge-based power:** Pull distance directly maps to projectile velocity (0-8 pixels = 0-50 velocity)\n2. **Mobility trade-off:** Can't move at full speed while charging\n3. **Instant flight:** No gravity, travels in straight line\n4. **No bouncing:** Arrows stick to walls or damage enemies once\n5. **Diagonal aiming:** Always shoots at 45\u00b0 angle (up-forward)\n6. **Visual feedback:** Bowstring stretches, arrow appears, bow squashes\n7. **Recoil animation:** Spring-based flinch on fire with elastic recovery\n8. **Persistence:** Stuck arrows remain on terrain as visual feedback for 1-2 seconds\n\nThis creates a charge-and-release mechanic similar to a bow in action games, with the tension-building charge phase balanced against movement restriction."
},
{
"type": "text",
"text": "agentId: ab5f8df (for resuming to continue this agent's work if needed)\n<usage>total_tokens: 36457\ntool_uses: 15\nduration_ms: 65745</usage>"
}
]
Here's how the bow works in emojunky-one:
Aiming: Always fires diagonally upward at 45 degrees (up-forward based on facing direction). No free-aim.
Charge mechanic: Hold the action button to pull the bowstring. Pull distance interpolates toward 8px over time. On release, the pull distance maps to projectile velocity (0-8px → 0-50 velocity). Player movement speed is halved during charge.
Visual feedback:
- Bow stretches (
bow_sxscales to 1.15) during pull - Bowstring line drawn from top anchor → pulled point → bottom anchor (creating the V-shaped pull)
- Arrow sprite fades in and moves backward as the bow is pulled
- On release: spring-based recoil, elastic snap-back on pull offset, bow scale tweens back to 1
Arrow projectile:
- No gravity, straight-line flight
- Auto-rotates to face velocity direction (
atan2(vy, vx)) - Hitbox: long and narrow (18x4)
- On wall hit: sticks as a decoration for 1-2 seconds, then fades
- On enemy hit: damage scales with velocity (
remap(velocity, 100, 800, 1, 5)HP), knockback in arrow direction, star particles
Cooldown: 0.6 seconds between shots.
The key design traits: charge-for-power, mobility penalty while charging, no bounce (stick or damage once), and persistent stuck arrows as visual feedback.
How much of this do you want to adapt for ebb's bow? The fixed 45-degree aim won't apply since ebb balls rotate — the bow would probably fire in the weapon's facing direction like the gun does. But the charge mechanic and arrow behavior are interesting starting points.
The bow for this game will be auto-attack and increase number of projectiles per hit. But the bow visual feedback will be the same, arrows sticking to walls will be the same. It will use the same gun-is-aligned, sword-is-aligned raycast mechanic for firing. Save these findings to a file, along with file names and lines where relevant code can be found, we'll continue this from a fresh session.
Write (E:\a327ex\emoji-ball-battles\reference\bow-reference.md)
File created successfully at: E:\a327ex\emoji-ball-battles\reference\bow-reference.md
Saved to emoji-ball-battles/reference/bow-reference.md. Includes the EBB design notes (auto-attack, projectile count scaling, raycast alignment) and all the emojunky-one implementation details with file/line references.
Thank you.
You're welcome! Good session — we got the indicator system scaffolded, cooldown bar moved to the weapon UI, and bow research documented. See you next time.