a327ex.com

EBB Weapon Redesign

Summary

Removed all flute weapon code, fixed several gameplay initialization issues, then shifted to a deep weapon design exploration — building a systematic vocabulary of attack shapes, behaviors, triggers, and scaling patterns, and using it to generate 22 new emoji-matched weapon concepts.

Flute Code Removal:

Ball Spawn Position Fix:

Game Auto-Start Fix (Balls Not Moving):

Cooldown Bar Initial Display Fix:

Weapon Design Philosophy — Key Insight:

Design Space Exploration (created reference/attack-design-space.md):

Emoji-Matched Weapon Concepts (Part 7, 22 weapons):

Todo Cleanup:

Attack Reference Matrix (created docs/ATTACK_REFERENCE.md):


Hello, Claude. Let's continue work on Emoji Ball Battles, however, we need to back off from implementing weapons for a while and do some redesigns. Last session we implemented part of the flute and I didn't really like it. I tried to make some changes myself but nothing came together quite well. So for now, let's just remove all code related to the flute from the codebase.

Let me start by reading the relevant files to understand the current state of the codebase.

Read (E:\a327ex\emoji-ball-battles\main.yue)

File content (62429 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.

Let me find all flute-related code in the file.

Grep (flute|Flute|FLUTE)

84-an\image 'dash', 'assets/dash.png'
85-an\image 'bow', 'assets/bow.png'
86-an\image 'arrow', 'assets/arrow.png'
87:an\image 'flute', 'assets/flute.png'
88-an\image 'musical_note', 'assets/musical_note.png'
89-
90--- Plant images
--
340-    @\add wall @x + wall_thickness/2 + @w, @y + @h/2 + wall_thickness/2, wall_thickness, @h + wall_thickness
341-
342-    -- Create balls
343:    headless_player_weapon = args.player_weapon or 'flute'
344-    headless_enemy_weapon = args.enemy_weapon or 'sword'
345-    @player_ball = ball @x + @w*0.25, @y + @h/2, 'player', headless_player_weapon
346-    @enemy_ball = ball @x + @w*0.9, @y + @h*0.1, 'enemy', headless_enemy_weapon
--
525-      else
526-        an.time_scale = 0
527-    if an\key_is_pressed('f')
528:      @player_ball\flute_fire! if @player_ball and @player_ball.weapon_type == 'flute'
529-    if an\key_is_pressed('r')
530-      @player_ball.collider\set_angle @player_ball.collider\get_angle! + math.pi/8
531-
--
919-      if owner.weapon_type == 'bow'
920-        owner.arrows_per_shot += 1
921-
922:      -- Flute scaling: -trail rate per main note hit
923:      if owner.weapon_type == 'flute' and projectile_object.projectile_type == 'note'
924:        owner.flute_trail_rate = math.max(0.15, owner.flute_trail_rate - 0.05)
... [112 more lines]

Let me also check for the note projectile type and musical_note image which seem flute-related.

Grep (note|musical_note)

85-an\image 'bow', 'assets/bow.png'
86-an\image 'arrow', 'assets/arrow.png'
87-an\image 'flute', 'assets/flute.png'
88:an\image 'musical_note', 'assets/musical_note.png'
89-
90--- Plant images
91-an\image 'seedling', 'assets/seedling.png'
--
235-an\physics_tag 'projectile_sensor'
236-an\physics_collision 'projectile', 'wall'
237-an\physics_collision 'projectile', 'weapon'
238:an\physics_tag 'note_projectile'
239:an\physics_collision 'note_projectile', 'wall'
240-an\physics_sensor 'projectile_sensor', 'ball'
241-an\physics_sensor 'projectile_sensor', 'plant_ghost'
242-an\physics_sensor 'weapon_hitbox', 'ball'
--
809-            flash_on_spawn: true
810-
811-    -- Note-wall collision: fork/bounce
812:    for event in *an\collision_begin_events 'note_projectile', 'wall'
813:      note_object = event.a
814:      vx, vy = note_object.collider\get_velocity!
815-      intensity = math.remap math.length(vx, vy), 300, 600, 0, 1
816:      note_object\hit intensity, 'wall', event.normal_x, event.normal_y
817-      an\sound_play "concrete_#{an.random\int(1, 3)}", 0.7, an.random\float(0.95, 1.05)
818-      normal_angle = math.angle event.normal_x, event.normal_y
819-      @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}
--
919-      if owner.weapon_type == 'bow'
... [104 more lines]

Now let me read the specific sections around the note-wall collision handler and the projectile class more carefully to understand boundaries.

Read (E:\a327ex\emoji-ball-battles\main.yue)

   805→            direction: normal_angle + math.pi + an.random\float(-math.pi/3, math.pi/3)
   806→            duration: an.random\float(0.3, 0.5)
   807→            color: yellow
   808→            gravity: 256
   809→            flash_on_spawn: true
   810→
   811→    -- Note-wall collision: fork/bounce
   812→    for event in *an\collision_begin_events 'note_projectile', 'wall'
   813→      note_object = event.a
   814→      vx, vy = note_object.collider\get_velocity!
   815→      intensity = math.remap math.length(vx, vy), 300, 600, 0, 1
   816→      note_object\hit intensity, 'wall', event.normal_x, event.normal_y
   817→      an\sound_play "concrete_#{an.random\int(1, 3)}", 0.7, an.random\float(0.95, 1.05)
   818→      normal_angle = math.angle event.normal_x, event.normal_y
   819→      @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}
   820→      for i = 1, an.random\int 1, 3
   821→        @effects\add hit_particle event.point_x, event.point_y,
   822→          velocity: intensity*an.random\float(100, 200)
   823→          direction: normal_angle + math.pi + an.random\float(-math.pi/3, math.pi/3)
   824→          duration: an.random\float(0.3, 0.5)
   825→          color: yellow
   826→          gravity: 256
   827→          flash_on_spawn: true
   828→
   829→    -- Projectile-weapon collision: parry
   830→    for event in *an\collision_begin_events 'projectile', 'weapon'
   831→      projectile_object = event.a
   832→      ball_object = event.b  -- ball that owns the weapon
   833→
   834→      -- Skip if hitting same team's weapon

Read (E:\a327ex\emoji-ball-battles\main.yue)

  2260→    @emoji_hit_image = emoji_hit_image
  2261→    @emoji_scale = 20/512
  2262→    @emoji_scale *= 1.1 if emoji_image == an.images.cowboy
  2263→    @showing_hit = false
  2264→    @emoji_oy = 0
  2265→
  2266→    -- Weapon properties
  2267→    @weapon_x = if @team == 'player' then 91 else 389
  2268→    @weapon_y = 60
  2269→    @weapon_image = if weapon_type == 'gun' then an.images.gun elseif weapon_type == 'sword' then an.images.sword elseif weapon_type == 'bow' then an.images.bow elseif weapon_type == 'flute' then an.images.flute else an.images.dagger
  2270→    @weapon_scale = 20/512
  2271→    @weapon_flip_x = if @team == 'player' then -1 else 1
  2272→
  2273→    -- Board properties
  2274→    -- @board_y = 102

Read (E:\a327ex\emoji-ball-battles\main.yue)

   232→an\physics_collision 'ball', 'wall'
   233→an\physics_collision 'ball', 'ball'
   234→an\physics_collision 'weapon', 'weapon'
   235→an\physics_tag 'projectile_sensor'
   236→an\physics_collision 'projectile', 'wall'
   237→an\physics_collision 'projectile', 'weapon'
   238→an\physics_tag 'note_projectile'
   239→an\physics_collision 'note_projectile', 'wall'
   240→an\physics_sensor 'projectile_sensor', 'ball'
   241→an\physics_sensor 'projectile_sensor', 'plant_ghost'
   242→an\physics_sensor 'weapon_hitbox', 'ball'
   243→an\physics_sensor 'weapon_hitbox', 'plant_ghost'
   244→an\physics_sensor 'plant_ghost', 'ball'
   245→
   246→-- Render and composite layers

Read (E:\a327ex\emoji-ball-battles\main.yue)

  3775→        f\write "<div class='event battle-end'>Step #{e.step}: #{headless_end_winner} wins (#{e.reason}) — HP: #{e.player_hp}/#{e.enemy_hp}</div>\n"
  3776→    f\write "</details>\n"
  3777→
  3778→  f\write "</body></html>\n"
  3779→  f\close!
  3780→  print "HTML report written to #{filename}"
  3781→
  3782→-- All weapons in the game (update this list when adding new weapons)
  3783→headless_weapons = {'dagger', 'sword', 'bow', 'gun', 'flute'}
  3784→

Let me read a few more sections to understand the exact code boundaries before making edits.

Read (E:\a327ex\emoji-ball-battles\main.yue)

    83→an\image 'star', 'assets/star.png'
    84→an\image 'dash', 'assets/dash.png'
    85→an\image 'bow', 'assets/bow.png'
    86→an\image 'arrow', 'assets/arrow.png'
    87→an\image 'flute', 'assets/flute.png'
    88→an\image 'musical_note', 'assets/musical_note.png'
    89→
    90→-- Plant images
    91→an\image 'seedling', 'assets/seedling.png'
    92→an\image 'sheaf', 'assets/sheaf.png'

Read (E:\a327ex\emoji-ball-battles\main.yue)

   338→    @\add wall @x + @w/2, @y + @h + wall_thickness/2, @w, wall_thickness, nil, true
   339→    @\add wall @x - wall_thickness/2, @y + @h/2 + wall_thickness/2, wall_thickness, @h + wall_thickness
   340→    @\add wall @x + wall_thickness/2 + @w, @y + @h/2 + wall_thickness/2, wall_thickness, @h + wall_thickness
   341→
   342→    -- Create balls
   343→    headless_player_weapon = args.player_weapon or 'flute'
   344→    headless_enemy_weapon = args.enemy_weapon or 'sword'
   345→    @player_ball = ball @x + @w*0.25, @y + @h/2, 'player', headless_player_weapon
   346→    @enemy_ball = ball @x + @w*0.9, @y + @h*0.1, 'enemy', headless_enemy_weapon
   347→    @\add @player_ball

Read (E:\a327ex\emoji-ball-battles\main.yue)

   522→    if an\key_is_pressed('p')
   523→      if an.time_scale == 0
   524→        an.time_scale = 1
   525→      else
   526→        an.time_scale = 0
   527→    if an\key_is_pressed('f')
   528→      @player_ball\flute_fire! if @player_ball and @player_ball.weapon_type == 'flute'
   529→    if an\key_is_pressed('r')
   530→      @player_ball.collider\set_angle @player_ball.collider\get_angle! + math.pi/8
   531→

Read (E:\a327ex\emoji-ball-battles\main.yue)

   915→      -- headless: log projectile hit
   916→      @headless_events[] = {step: @headless_step_count, type: 'hit', attacker: owner.team, defender: ball_object.team, damage: damage, weapon: owner.weapon_type, hit_type: 'projectile'}
   917→
   918→      -- Bow scaling: +1 arrow per hit
   919→      if owner.weapon_type == 'bow'
   920→        owner.arrows_per_shot += 1
   921→
   922→      -- Flute scaling: -trail rate per main note hit
   923→      if owner.weapon_type == 'flute' and projectile_object.projectile_type == 'note'
   924→        owner.flute_trail_rate = math.max(0.15, owner.flute_trail_rate - 0.05)
   925→
   926→      -- Spawn star particles at hit location
   927→      x = (projectile_object.x + ball_object.x)/2
   928→      y = (projectile_object.y + ball_object.y)/2
   929→      for i = 1, an.random\int 1, 3

Read (E:\a327ex\emoji-ball-battles\main.yue)

  1335→      @weapon_weight = 1.0
  1336→      @hit_stop_multiplier = 1.0
  1337→      @hit_particle_multiplier = 1.0
  1338→      @camera_shake_multiplier = 1.0
  1339→
  1340→    elseif @weapon_type == 'flute'
  1341→      @weapon_class = 'ranged'
  1342→      @weapon_image = an.images.flute
  1343→      @weapon_visual_offset = 24
  1344→      @weapon_perpendicular_offset = 0
  1345→      @weapon_hitbox_offset = 24
  1346→      @weapon_hitbox_length = 28
  1347→      @weapon_hitbox_width = 8
  1348→      @weapon_scale = 18/512
  1349→      @weapon_scale_y = 18/512
  1350→      @weapon_rotation_offset = -3*math.pi/4
  1351→      @base_angular_velocity = 1.5*math.pi
  1352→      @max_angular_velocity = 3*math.pi
  1353→      @weapon_weight = 1.0
  1354→      @hit_stop_multiplier = 1.0
  1355→      @hit_particle_multiplier = 1.0
  1356→      @camera_shake_multiplier = 1.0
  1357→      @flute_cooldown = 2.4
  1358→      @flute_trail_rate = 1.0
  1359→
  1360→    @\add collider 'ball', 'dynamic', 'circle', @radius
  1361→    @collider\set_position @x, @y
  1362→    @collider\set_restitution 1
  1363→    @collider\set_friction 0
  1364→    @collider\set_linear_damping 0

Read (E:\a327ex\emoji-ball-battles\main.yue)

  1445→      @timer\after @thrust_cooldown, 'thrust_cooldown', -> @thrust_ready = true
  1446→      @timer\when (-> @thrust_ready and @\sword_is_aligned!), 'sword_thrust', (-> @\sword_thrust!)
  1447→    elseif @weapon_type == 'bow'
  1448→      @bow_ready = false
  1449→      @timer\after @bow_cooldown, 'bow_cooldown', -> @bow_ready = true
  1450→      @timer\when (-> @bow_ready and @\bow_is_aligned!), 'bow_fire', (-> @\bow_fire!)
  1451→    -- elseif @weapon_type == 'flute'
  1452→    --   @flute_ready = false
  1453→    --   @timer\after @flute_cooldown, 'flute_cooldown', -> @flute_ready = true
  1454→    --   @timer\when (-> @flute_ready), 'flute_fire', (-> @\flute_fire!)
  1455→
  1456→  update: (dt) =>
  1457→    -- When paused, use dt = 0 so physics logic doesn't run
  1458→    dt = 0 if @parent.paused
  1459→

Read (E:\a327ex\emoji-ball-battles\main.yue)

  1720→        weapons\pop!
  1721→
  1722→    elseif @weapon_type == 'dagger'
  1723→      weapons\push weapon_x, weapon_y, @angle + @weapon_rotation_offset + @weapon_recoil, @weapon_scale*weapon_spring, @weapon_scale_y*weapon_spring
  1724→      weapons\image @weapon_image, 0, 0, nil, @weapon_flashing and white!
  1725→      weapons\pop!
  1726→
  1727→    elseif @weapon_type == 'flute'
  1728→      weapons\push weapon_x, weapon_y, @angle + @weapon_rotation_offset + @weapon_recoil, @weapon_scale*weapon_spring, @weapon_scale_y*weapon_spring
  1729→      weapons\image @weapon_image, 0, 0, nil, @weapon_flashing and white!
  1730→      weapons\pop!
  1731→
  1732→    -- Debug draw weapon hitbox
  1733→    hitbox_x = @x + @weapon_hitbox_offset*math.cos(@angle)
  1734→    hitbox_y = @y + @weapon_hitbox_offset*math.sin(@angle)

Read (E:\a327ex\emoji-ball-battles\main.yue)

  1996→
  1997→  -- Start bow pull animation for next arrow
  1998→  bow_start_pull: (duration) =>
  1999→    @bow_arrow_alpha = 1
  2000→    @timer\tween duration, @, {bow_pull_amount: 8}, math.quad_out, nil, 'bow_release'
  2001→    @timer\tween duration, @, {bow_sy: 0.9}, math.quad_out, nil, 'bow_sy_release'
  2002→
  2003→  -- Flute alignment: check if weapon angle is near a 45° multiple (π/4, 3π/4, 5π/4, 7π/4)
  2004→  flute_is_aligned: =>
  2005→    a = @angle % (2*math.pi)
  2006→    a += 2*math.pi if a < 0
  2007→    threshold = 0.15
  2008→    for i = 1, 7, 2
  2009→      target = i*math.pi/4
  2010→      diff = math.abs(a - target)
  2011→      diff = math.min(diff, 2*math.pi - diff)
  2012→      return true if diff < threshold
  2013→    false
  2014→
  2015→  -- Snap angle to nearest 45° multiple
  2016→  flute_snap_angle: =>
  2017→    a = @angle % (2*math.pi)
  2018→    a += 2*math.pi if a < 0
  2019→    best = math.pi/4
  2020→    best_diff = math.huge
  2021→    for i = 1, 7, 2
  2022→      target = i*math.pi/4
  2023→      diff = math.abs(a - target)
  2024→      diff = math.min(diff, 2*math.pi - diff)
  2025→      if diff < best_diff
... [45 more lines]

Now let me also read the projectile class sections for note/note_trail and the ball_board weapon_type check.

Read (E:\a327ex\emoji-ball-battles\main.yue)

  2940→    elseif @projectile_type == 'arrow'
  2941→      @w = 18
  2942→      @h = 4
  2943→      @\add collider 'projectile', 'dynamic', 'box', @w, @h
  2944→      @collider\set_position @x, @y
  2945→      @collider\set_restitution 0
  2946→      @collider\set_friction 1
  2947→      @collider\set_gravity_scale 0
  2948→      @collider\apply_impulse @velocity*math.cos(@direction), @velocity*math.sin(@direction)
  2949→      @collider\set_density 0.1
  2950→    elseif @projectile_type == 'note' or @projectile_type == 'note_trail'
  2951→      @damage = args.damage or 1
  2952→      radius = if @projectile_type == 'note' then 8 else 5
  2953→      @note_scale = if @projectile_type == 'note' then 12/512 else 8/512
  2954→      @w = radius*2
  2955→      @h = radius*2
  2956→      @\add collider 'note_projectile', 'dynamic', 'circle', radius
  2957→      @collider\set_position @x, @y
  2958→      @collider\set_restitution 1
  2959→      @collider\set_friction 0
  2960→      @collider\set_gravity_scale 0
  2961→      @collider\set_density 0.2
  2962→      if @projectile_type == 'note'
  2963→        @collider\apply_impulse @velocity*math.cos(@direction), @velocity*math.sin(@direction)
  2964→        @trail_rate = args.trail_rate or 1.0
  2965→
  2966→    @collider\set_bullet true  -- continuous collision detection
  2967→
  2968→    -- Sensor shape for ball detection (passes through balls)
  2969→    sensor_w = @w
... [45 more lines]

Read (E:\a327ex\emoji-ball-battles\main.yue)

  2385→      effects\text value2, 'lana', right_x - an.fonts.lana\text_width(value2), 6, white!
  2386→    elseif @weapon_type == 'sword'
  2387→      effects\text "THRUST DMG", 'lana', left_x, 0, white!
  2388→      value1 = string.format("%d", my_ball.thrust_damage)
  2389→      effects\text value1, 'lana', right_x - an.fonts.lana\text_width(value1), 0, white!
  2390→    elseif @weapon_type == 'bow'
  2391→      effects\text "ARROWS/SHOT", 'lana', left_x, 0, white!
  2392→      value1 = string.format("%d", my_ball.arrows_per_shot)
  2393→      effects\text value1, 'lana', right_x - an.fonts.lana\text_width(value1), 0, white!
  2394→    elseif @weapon_type == 'flute'
  2395→      effects\text "TRAIL RATE", 'lana', left_x, 0, white!
  2396→      value1 = string.format("%.2fs", my_ball.flute_trail_rate)
  2397→      effects\text value1, 'lana', right_x - an.fonts.lana\text_width(value1), 0, white!
  2398→    else  -- dagger
  2399→      rotations_per_second = my_ball.base_angular_velocity/(2*math.pi)
  2400→      effects\text "ROTATIONS/S", 'lana', left_x, 0, white!
  2401→      value1 = string.format("%.2f", rotations_per_second)
  2402→      effects\text value1, 'lana', right_x - an.fonts.lana\text_width(value1), 0, white!
  2403→    effects\pop!
  2404→

Read (E:\a327ex\emoji-ball-battles\main.yue)

  3040→        if @projectile_type == 'bullet'
  3041→          @bounces -= 1
  3042→          if @bounces < 0
  3043→            @\kill!
  3044→        elseif @projectile_type == 'arrow'
  3045→          angle = @collider\get_angle!
  3046→          -- Flip angle if arrow points outward from wall
  3047→          if math.cos(angle)*normal_x + math.sin(angle)*normal_y < 0
  3048→            angle += math.pi
  3049→          offset = an.random\float(0, 10)
  3050→          @parent.arena.effects\add stuck_arrow @x + offset*math.cos(angle), @y + offset*math.sin(angle), {angle: angle}
  3051→          @\kill!
  3052→        elseif @projectile_type == 'note'
  3053→          @bounces -= 1
  3054→          if @bounces < 0
  3055→            @\kill!
  3056→        elseif @projectile_type == 'note_trail'
  3057→          @\kill!
  3058→      when 'weapon'
  3059→        if @projectile_type != 'arrow'
  3060→          @bounces -= 1
  3061→          if @bounces < 0
  3062→            @\kill!
  3063→      when 'ball'
  3064→        @\kill!

Good, I now have a complete picture of all the flute-related code. Here's what I'll remove:

  1. Line 87-88: flute and musical_note image declarations
  2. Lines 238-239: note_projectile physics tag and collision
  3. Line 343: Default weapon changed from 'flute' to something else (e.g. 'sword')
  4. Lines 527-528: 'f' key flute_fire debug binding
  5. Lines 811-827: Note-wall collision handler
  6. Lines 922-924: Flute scaling on hit
  7. Lines 1340-1358: Flute weapon config in ball class
  8. Lines 1451-1454: Commented-out flute AI code
  9. Lines 1727-1730: Flute weapon drawing
  10. Lines 2003-2068: flute_is_aligned, flute_snap_angle, flute_fire methods
  11. Lines 2269: Flute in weapon_image chain (ball_board)
  12. Lines 2394-2397: Flute stats in ball_board UI
  13. Lines 2950-2964: Note/note_trail projectile setup
  14. Lines 2971-2972: Note sensor shape branch
  15. Lines 2987-2988: Note_trail timer
  16. Lines 2999-3010: Note trail spawning in update
  17. Lines 3023-3026: Note drawing
  18. Lines 3052-3057: Note/note_trail wall hit handling
  19. Line 3783: 'flute' from headless_weapons list

Let me make all these edits now.

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.

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.

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.

Edit (E:\a327ex\emoji-ball-battles\main.yue)

The file E:\a327ex\emoji-ball-battles\main.yue has been updated successfully.

Now let me handle the ball_board weapon_image chain and stats display.

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 the projectile class — note/note_trail setup, sensor branch, trail timer, trail spawning, drawing, and hit handling.

Edit (E:\a327ex\emoji-ball-battles\main.yue)

The file E:\a327ex\emoji-ball-battles\main.yue has been updated successfully.

Now the sensor shape branch. Let me re-read around that area since line numbers shifted.

Grep (ball_sensor = if)

2821-
2822-    -- Sensor shape for ball detection (passes through balls)
2823-    sensor_w = @w
2824-    sensor_h = @h
2825:    @ball_sensor = if @projectile_type == 'note' or @projectile_type == 'note_trail'
2826-      @collider\add_circle 'projectile_sensor', @w\2, {sensor: true}
2827-    else
2828-      @collider\add_box 'projectile_sensor', sensor_w, sensor_h, {sensor: true}
2829-    @collider\set_density 0, @ball_sensor

Edit (E:\a327ex\emoji-ball-battles\main.yue)

The file E:\a327ex\emoji-ball-battles\main.yue has been updated successfully.

Now the note_trail timer, note trail spawning in update, note drawing, and note hit handling.

Grep (note_trail|note')

2835-    if args.flash_on_spawn
2836-      @flashing = true
2837-      @timer\after 0.1, -> @flashing = false
2838:    if @projectile_type == 'note_trail'
2839-      @timer\after 3, -> @\kill!
2840-
2841-  update: (dt) =>
--
2848-    @angle = @collider\get_angle!
2849-
2850-    -- Note trail spawning
2851:    if @projectile_type == 'note'
2852-      @trail_timer = (@trail_timer or 0) + dt
2853-      if @trail_timer >= @trail_rate
2854-        @trail_timer -= @trail_rate
2855-        @parent\add projectile @x, @y,
2856:          projectile_type: 'note_trail'
2857-          velocity: 0
2858-          direction: 0
2859-          flash_on_spawn: true
--
2871-      game\push @x, @y, @angle + 3*math.pi/4, arrow_scale*scale, arrow_scale*scale
2872-      game\image an.images.arrow, 0, 0, nil, @flashing and white!
2873-      game\pop!
2874:    elseif @projectile_type == 'note' or @projectile_type == 'note_trail'
2875-      game\push @x, @y, 0, @note_scale*scale, @note_scale*scale
2876-      game\image an.images.musical_note, 0, 0, nil, @flashing and white!
2877-      game\pop!
--
2900-          offset = an.random\float(0, 10)
... [10 more lines]

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.

Edit (E:\a327ex\emoji-ball-battles\main.yue)

The file E:\a327ex\emoji-ball-battles\main.yue has been updated successfully.

Finally, the headless weapons list.

Edit (E:\a327ex\emoji-ball-battles\main.yue)

The file E:\a327ex\emoji-ball-battles\main.yue has been updated successfully.

Let me verify there are no remaining flute/note references.

Grep (flute|musical_note|note_projectile|note_trail|'note')

No matches found

Clean. All flute-related code has been removed from main.yue. Here's a summary of what was removed:

OK, now let's fix the spawn positions for the enemy ball, and have the game automatically start as it did before.

Let me read the relevant sections to understand the current spawn positions and game start flow.

Read (E:\a327ex\emoji-ball-battles\main.yue)

   330→    -- Create walls as children (top, bottom/floor, left, right)
   331→    -- Floor is only arena width; side walls extend down to cover the rest
   332→    @\add wall @x + @w/2, @y - wall_thickness/2, @w + wall_thickness*2, wall_thickness
   333→    @\add wall @x + @w/2, @y + @h + wall_thickness/2, @w, wall_thickness, nil, true
   334→    @\add wall @x - wall_thickness/2, @y + @h/2 + wall_thickness/2, wall_thickness, @h + wall_thickness
   335→    @\add wall @x + wall_thickness/2 + @w, @y + @h/2 + wall_thickness/2, wall_thickness, @h + wall_thickness
   336→
   337→    -- Create balls
   338→    headless_player_weapon = args.player_weapon or 'sword'
   339→    headless_enemy_weapon = args.enemy_weapon or 'sword'
   340→    @player_ball = ball @x + @w*0.25, @y + @h/2, 'player', headless_player_weapon
   341→    @enemy_ball = ball @x + @w*0.9, @y + @h*0.1, 'enemy', headless_enemy_weapon
   342→    @\add @player_ball
   343→    @\add @enemy_ball
   344→
   345→    -- Create plants container and spawn plant groups
   346→    @\add object 'plants'
   347→    @\spawn_plants!
   348→
   349→    @high_speed_hit_count = 0 -- Track recent high speed hits for energy system bypass
   350→    @low_horizontal_hit_count = 0 -- Track recent low horizontal hits to prevent stalling
   351→    @max_ball_speed = 448
   352→
   353→    -- Energy boost to compensate for Box2D energy loss
   354→    @ball_energy_boost = 1.09
   355→    @weapon_energy_boost = 1.14  -- higher because weapon collisions lose more energy
   356→
   357→    -- Wall energy boost (fallback system to prevent stalling)
   358→    @system_energy = 250  -- default until first measurement
   359→    @min_wall_energy_boost = 1.0   -- boost at high energy (>=600)

Now let me check how the game starts — there might be a paused/menu state or initialization flow.

Grep (paused|game_start|auto.?start|init_state|state.*=)

367:    @paused = false
1403:    -- When paused, use dt = 0 so physics logic doesn't run
1404:    dt = 0 if @parent.paused

[Showing results with pagination = limit: 40, offset: 0]

Grep (an\init|an\start|game_state|menu|title_screen|press.*start)

510:    -- Pause system: press space or click to start

Read (E:\a327ex\emoji-ball-battles\main.yue)

   505→  ]]
   506→  early_update: (dt) =>
   507→    -- Background gradient (drawn early so clouds appear on top)
   508→    bg\rectangle_gradient_v 0, 0, gw, gh, sky_top!, sky_bottom!
   509→
   510→    -- Pause system: press space or click to start
   511→    -- Music
   512→    if an\key_is_pressed('m')
   513→      an\music_play 'bgm'
   514→    if an\key_is_pressed('n')
   515→      an\music_play 'enbudai'
   516→
   517→    if an\key_is_pressed('p')
   518→      if an.time_scale == 0
   519→        an.time_scale = 1
   520→      else
   521→        an.time_scale = 0
   522→    if an\key_is_pressed('r')
   523→      @player_ball.collider\set_angle @player_ball.collider\get_angle! + math.pi/8
   524→
   525→    for event in *an\collision_begin_events 'ball', 'ball'
   526→      ball_a, ball_b = event.a, event.b
   527→      vx_a, vy_a = ball_a.collider\get_velocity!
   528→      vx_b, vy_b = ball_b.collider\get_velocity!
   529→
   530→      speed_a = math.length(vx_a, vy_a)
   531→      speed_b = math.length(vx_b, vy_b)
   532→      max_speed = math.max(speed_a, speed_b)
   533→
   534→      combined_speed = speed_a + speed_b

I need more context about how the game used to auto-start. Let me check for any time_scale initialization or space/click to start logic.

Grep (time_scale)

518:      if an.time_scale == 0
519:        an.time_scale = 1
521:        an.time_scale = 0

Grep (space|click.*start|start_game)

510:    -- Pause system: press space or click to start
3053:    seen_space = false
3057:        seen_space = true
3525:  f\write "body{background:#303132;color:#e7e8e9;font-family:'Courier New',monospace;margin:20px;}\n"
3611:  return f\write "<svg width='#{width}' height='#{height}' style='background:#1a1a1a;border-radius:4px;'><text x='#{width/2}' y='#{height/2}' fill='#555' font-size='12' font-family='monospace' text-anchor='middle'>No data</text></svg>\n" if #values == 0
3650:  f\write "<text x='#{ml}' y='#{height - 8}' fill='#888' font-size='10' font-family='monospace'>#{string.format('%.0f', min_val)}</text>\n"
3651:  f\write "<text x='#{ml + pw/2}' y='#{height - 8}' fill='#888' font-size='10' font-family='monospace' text-anchor='middle'>#{string.format('%.0f', (min_val + max_val)/2)}</text>\n"
3652:  f\write "<text x='#{ml + pw}' y='#{height - 8}' fill='#888' font-size='10' font-family='monospace' text-anchor='end'>#{string.format('%.0f', max_val)}</text>\n"
3654:  f\write "<text x='#{ml - 4}' y='#{mt + 10}' fill='#888' font-size='10' font-family='monospace' text-anchor='end'>#{max_count}</text>\n"
3655:  f\write "<text x='#{ml - 4}' y='#{mt + ph}' fill='#888' font-size='10' font-family='monospace' text-anchor='end'>0</text>\n"
3658:    f\write "<text x='#{ml + pw/2}' y='#{height - 0}' fill='#666' font-size='9' font-family='monospace' text-anchor='middle'>#{opts.xlabel}</text>\n"
3736:  f\write "body{background:#303132;color:#e7e8e9;font-family:'Courier New',monospace;margin:20px;max-width:900px;}\n"

Let me look at lines around 3050-3060 for the seen_space context and also at how the arena initializes, specifically around @paused.

Read (E:\a327ex\emoji-ball-battles\main.yue)

   360→    @max_wall_energy_boost = 1.11 -- boost at very low energy (<=100)
   361→    @wall_energy_boost = 1
   362→    @wall_boost_chance = 0  -- probability of applying boost (0-100)
   363→
   364→    -- Hit timing system (for scaling hit effects and hit stop)
   365→    @time_since_last_hit = 1.5  -- start at max so first hit is full intensity
   366→
   367→    @paused = false
   368→
   369→    -- headless: battle tracking
   370→    @headless_battle_over = false
   371→    @headless_winner = nil
   372→    @headless_winner_hp = 0
   373→    @headless_events = {}
   374→    @headless_step_count = 0

Read (E:\a327ex\emoji-ball-battles\main.yue)

  3045→    @duration_multiplier = args.duration_multiplier or 1
  3046→    @scale_multiplier = args.scale_multiplier or 1
  3047→    @base_scale = 12/512
  3048→    @scale = @base_scale*@scale_multiplier
  3049→    @char_count = #text
  3050→    @\add spring!
  3051→    @spring\pull 'main', 0.5, 4, 0.6
  3052→
  3053→    seen_space = false
  3054→    for i = 1, #text
  3055→      char = text\sub(i, i)\lower!
  3056→      if char == ' '
  3057→        seen_space = true
  3058→        continue
  3059→      image_name = char == '+' and 'plus' or char
  3060→      character_object = object!
  3061→      character_object\set {
  3062→        image: an.images[image_name]
  3063→        rotation: an.random\float -math.pi/16, math.pi/16
  3064→        angular_speed: an.random\float -math.pi/4, math.pi/4
  3065→        offset_y: 0
  3066→        layer: char == '+' and effects or recolor_blue
  3067→        tint: char == '+' and white! or nil
  3068→        index: i
  3069→      }
  3070→      character_object\action (dt) =>
  3071→        @rotation += @angular_speed*dt
  3072→        @offset_y = 4*math.sin(an.time + @index)
  3073→        parent = @parent
  3074→        total_w = parent.char_count*12*parent.scale_multiplier

The seen_space is unrelated (it's text rendering). The game already has @paused = false so it starts unpaused. Let me check whether there was some kind of initial pause or countdown mechanism that might have been changed recently.

Grep (countdown|ready|start.*battle|begin)

525:    for event in *an\collision_begin_events 'ball', 'ball'
655:    for event in *an\collision_begin_events 'weapon', 'weapon'
746:    for event in *an\collision_begin_events 'ball', 'wall'
779:    for event in *an\collision_begin_events 'projectile', 'wall'
805:    for event in *an\collision_begin_events 'projectile', 'weapon'
870:    for event in *an\sensor_begin_events 'projectile_sensor', 'ball'
905:    for event in *an\sensor_begin_events 'weapon_hitbox', 'ball'
949:    for event in *an\sensor_begin_events 'plant_ghost', 'ball'
959:    for event in *an\sensor_begin_events 'weapon_hitbox', 'plant_ghost'
971:    for event in *an\sensor_begin_events 'projectile_sensor', 'plant_ghost'
1091:          -- Check overlap with already spawned groups
1391:      @gun_ready = false
1392:      @timer\after @base_cooldown, 'gun_cooldown', -> @gun_ready = true
1393:      @timer\when (-> @gun_ready and @\gun_is_aligned!), 'gun_fire', (-> @\gun_fire!)
1395:      @thrust_ready = false
1396:      @timer\after @thrust_cooldown, 'thrust_cooldown', -> @thrust_ready = true
1397:      @timer\when (-> @thrust_ready and @\sword_is_aligned!), 'sword_thrust', (-> @\sword_thrust!)
1399:      @bow_ready = false
1400:      @timer\after @bow_cooldown, 'bow_cooldown', -> @bow_ready = true
1401:      @timer\when (-> @bow_ready and @\bow_is_aligned!), 'bow_fire', (-> @\bow_fire!)
1785:    @gun_ready = false
1787:    @timer\after cooldown, 'gun_cooldown', -> @gun_ready = true
1819:    @thrust_ready = false
1830:    -- After hit stop, begin the actual lunge
1860:    @timer\after @thrust_cooldown, 'thrust_cooldown', -> @thrust_ready = true
1880:    @bow_ready = false
1914:      @timer\after @bow_cooldown, 'bow_cooldown', -> @bow_ready = true

Let me look at how the arena/game is initialized in the main init function to understand how the game scene is set up.

Grep (^an\init|^an.init)

No matches found

Grep (an.init|an\init)

No matches found

Grep (init:|export)

No matches found

[Showing results with pagination = limit: 20, offset: 0]

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→
    12→-- Twitter emoji color palette
    13→white = color 255, 255, 255
    14→black = color 0, 0, 0
    15→gray = color 128, 128, 128
    16→bg_color = color 48, 49, 50
    17→fg = color 231, 232, 233
    18→fg_dark = color 201, 202, 203
    19→yellow = color 253, 205, 86
    20→star_yellow = color 255, 172, 51
    21→orange = color 244, 146, 0
    22→blue = color 83, 175, 239
    23→green = color 122, 179, 87
    24→red = color 223, 37, 64
    25→purple = color 172, 144, 216
    26→brown = color 195, 105, 77
    27→bowstring = color 217, 158, 130
    28→wall_color = fg\clone!\mix yellow, 0.1
    29→
    30→-- Sky colors (subtle blue gradient)

Grep (arena(|arena .*=|\add arena|scene|game_scene)

2105:    my_arena = @parent.parent
2287:    my_arena = @parent.parent
2300:    my_arena = @parent.parent
2315:    my_arena = @parent.parent
4014:        @headless_current_arena = arena {
4027:  an\add arena visual_args

[Showing results with pagination = limit: 20, offset: 0]

Read (E:\a327ex\emoji-ball-battles\main.yue)

  4020→    headless_sim\flow_to an
  4021→else
  4022→  visual_args = {}
  4023→  if an.args
  4024→    visual_args.seed = tonumber(an.args.seed) if an.args.seed
  4025→    if an.args.matchup
  4026→      visual_args.player_weapon, visual_args.enemy_weapon = an.args.matchup\match('(%w+),(%w+)')
  4027→  an\add arena visual_args
  4028→

Now let me look at the arena constructor to understand how it creates the balls — specifically I want to understand the coordinate system and what "correct" enemy spawn would be.

Read (E:\a327ex\emoji-ball-battles\main.yue)

   290→  shadow\draw 4, 4
   291→  back_outline\draw!
   292→  back\draw!
   293→  game_outline\draw!
   294→  game\draw!
   295→  front_outline\draw!
   296→  front\draw!
   297→  cover\draw!
   298→  weapons_outline\draw!
   299→  weapons\draw!
   300→  actual_outline_only\draw!
   301→  outline_only\clear!
   302→  effects_outline\draw!
   303→  effects\draw!
   304→  ui_outline\draw!
   305→  ui\draw!
   306→  debug_draw\draw!
   307→
   308→
   309→
   310→-- Arena class (contains walls, manages fight state)
   311→class arena extends object
   312→  new: (args={}) =>
   313→    super 'arena'
   314→
   315→    -- headless: seed RNG for deterministic battles
   316→    if args.seed
   317→      an.random\set_seed args.seed
   318→
   319→    @\add object 'effects'
... [25 more lines]

I see two issues you mentioned:

  1. Enemy spawn position: Player is at @x + @w*0.25, @y + @h/2 (left side, vertically centered). Enemy is at @x + @w*0.9, @y + @h*0.1 (far right, near the top) — asymmetric. Should be mirrored to @x + @w*0.75, @y + @h/2.

  2. Auto-start: You mentioned the game should "automatically start as it did before." The game currently has @paused = false and no time_scale = 0 on init, so it does start immediately.

Could you clarify what "automatically start as it did before" means? Is there something specific that's not happening — like the AI weapons not firing, or something else? Or was there previously a different initialization that got broken?

AskUserQuestion

User has answered your questions: "What does 'automatically start as it did before' mean? The game currently starts unpaused. Is something specific not working — e.g. AI not firing, balls not moving, a missing countdown, or something else?"="Balls not moving". You can now continue with the user's answers in mind.

Got it — the balls need an initial impulse. Let me check how that used to work.

Grep (impulse|initial.velocity|launch|kick|push.ball)

484:       When intervention triggers, both balls get random horizontal impulse (100-200).
497:       apply impulse to unstick it.
631:        kick_chance = math.clamp(@low_horizontal_hit_count, 0, 4)/4
632:        if an.random\bool kick_chance*100
634:          -- Apply horizontal impulse to both balls
1548:        @collider\apply_impulse math.sign(vx)*an.random\float(0, 6), -24
1966:    -- @collider\apply_impulse an.random\sign!*an.random\float(5, 10), an.random\float(-10, 10)
2223:      weapons\push 0, 0, my_ball.weapon_rotation_offset, -@weapon_scale*weapon_spring, @weapon_scale*weapon_spring
2808:      @collider\apply_impulse @velocity*math.cos(@direction), @velocity*math.sin(@direction)
2818:      @collider\apply_impulse @velocity*math.cos(@direction), @velocity*math.sin(@direction)

Read (E:\a327ex\emoji-ball-battles\main.yue)

   470→       - Stddev shrinks at higher speeds (0.3→0.1), making equal splits more likely
   471→       - Apply @ball_energy_boost (1.09x) to compensate for Box2D energy leakage
   472→
   473→    2. HIGH SPEED BYPASS (creates pacing/rhythm) - ball-ball collisions
   474→       Problem: Constant high-speed action becomes monotonous and hard to follow.
   475→       Solution: Track consecutive high-speed hits. As count increases, probability of
   476→       bypassing grows (S-curve, guaranteed at 9 hits). When bypass triggers, balls
   477→       lose 30% energy, creating calm moments. Counter resets after bypass.
   478→
   479→    3. LOW HORIZONTAL VELOCITY PREVENTION (prevents stalling) - ball-ball collisions
   480→       Problem: Balls can end up with low horizontal velocity, bouncing mostly vertically,
   481→       making collisions rare and gameplay stall.
   482→       Solution: Track consecutive low-horizontal collisions.
   483→       Probability of intervention increases linearly (guaranteed at 4 hits).
   484→       When intervention triggers, both balls get random horizontal impulse (100-200).
   485→
   486→    4. WALL FALLBACK (prevents stalling) - ball-wall collisions
   487→       Problem: System energy can drop too low even with other systems in place.
   488→       Solution: Track system_energy (sum of both ball speeds) on ball-ball collisions.
   489→       On ball-wall collisions, probabilistically apply energy boost.
   490→       - Probability (quad_out): 100% at energy ≤100, drops fast to 0% at energy ≥600
   491→       - Boost value (sine_out): max at energy ≤250, drops to 1.0 at energy ≥400
   492→
   493→    5. STUCK BALL DETECTION (prevents floor sliding) - implemented in ball class
   494→       Problem: A ball can lose vertical velocity and slide along a wall indefinitely.
   495→       Solution: Each ball tracks how long its vertical velocity stays very low (|vy| < 5)
   496→       while still having horizontal movement (|vx| > 5). If this persists for >0.5 seconds,
   497→       apply impulse to unstick it.
   498→
   499→    6. WEAPON ENERGY BOOST (compensates for weapon collision energy loss) - weapon-weapon collisions
... [10 more lines]

The balls start with zero velocity. Let me check the ball class constructor to see if there was ever an initial impulse.

Read (E:\a327ex\emoji-ball-battles\main.yue)

  1190→        @plants\add plant x - 20, y - 2, {image: 'tulip', w: 16, h: 16, layer: front}
  1191→        @plants\add plant x + 0, y - 2, {image: 'tulip', w: 22, h: 22, layer: front}
  1192→        @plants\add plant x + 20, y - 2, {image: 'tulip', w: 14, h: 14, layer: back}
  1193→
  1194→  -- Apply direct force to nearby plants (ball hitting ground)
  1195→  -- Plants push AWAY from impact point, closer plants get more force
  1196→  -- vy_multiplier: |vy| >= 150 = full force, below 150 linearly decreases
  1197→  apply_direct_force_to_nearby_plants: (x, y, radius, vy) =>
  1198→    vy_multiplier = math.min 1, math.remap(math.abs(vy), 0, 150, 0, 1)
  1199→    for p in *@plants.children
  1200→      dx = x - p.x
  1201→      if math.abs(dx) < radius
  1202→        -- Direction: plants push away from impact point
  1203→        direction = -math.sign(dx)
  1204→        -- Intensity: closer plants get more force (75), farther get less (25)
  1205→        intensity = math.remap(math.abs(dx), 0, radius, 75, 25)*vy_multiplier
  1206→        p\apply_direct_force direction, intensity
  1207→
  1208→
  1209→
  1210→-- Ball class
  1211→class ball extends object
  1212→  new: (@x, @y, @team, @weapon_type='dagger') =>
  1213→    super!
  1214→    @\tag 'ball'
  1215→    @image = @team == 'player' and an.images.no_mouth or an.images.no_mouth
  1216→    @image_hit = @team == 'player' and an.images.no_mouth_hit or an.images.no_mouth_hit
  1217→    @radius = 10
  1218→    @scale = 2*@radius/@image.width
  1219→    @scale = 1.125*@scale if @image == an.images.cowboy -- cowboy is visually larger
... [30 more lines]

Read (E:\a327ex\emoji-ball-battles\main.yue)

  1310→
  1311→    @\add collider 'ball', 'dynamic', 'circle', @radius
  1312→    @collider\set_position @x, @y
  1313→    @collider\set_restitution 1
  1314→    @collider\set_friction 0
  1315→    @collider\set_linear_damping 0
  1316→
  1317→    -- Add weapon hitbox (physical, 0 density so it doesn't affect ball mass/inertia)
  1318→    @weapon_shape = @collider\add_box 'weapon', @weapon_hitbox_length, @weapon_hitbox_width, {offset_x: @weapon_hitbox_offset}
  1319→    @collider\set_restitution 1, @weapon_shape
  1320→    @collider\set_density 0, @weapon_shape
  1321→
  1322→    -- Add sensor for detecting ball overlaps (passes through balls, generates events)
  1323→    @weapon_sensor = @collider\add_box 'weapon_hitbox', @weapon_hitbox_length, @weapon_hitbox_width, {offset_x: @weapon_hitbox_offset, sensor: true}
  1324→    @collider\set_restitution 1, @weapon_sensor
  1325→    @collider\set_density 0, @weapon_sensor
  1326→
  1327→    -- Track low vertical velocity time for sliding detection
  1328→    @low_vy_time = 0
  1329→    @low_vy_threshold = an.random\float 0.5, 1.5
  1330→
  1331→    -- Initial rotation
  1332→    @angle = an.random\angle!
  1333→    @collider\set_angle @angle
  1334→
  1335→    -- Angular velocity guardrails (keeps rotation speed balanced for gameplay)
  1336→    @time_above_base = 0  -- how long angular velocity has been above base
  1337→    @time_below_base = 0  -- how long angular velocity has been below base
  1338→    @above_base_grace_period = 0.5  -- seconds before decaying fast spin
  1339→    @below_base_grace_period = 0.25  -- seconds before recovering slow spin
... [65 more lines]

I see it now — line 1385-1387: "Ball starts with no gravity until game starts" and @collider\set_gravity_scale 0. So the balls start with zero gravity, meaning they float in place. There must have been (or should be) code that enables gravity and gives them an initial push. Let me search for where gravity gets turned on.

Grep (set_gravity_scale)

455:    @enemy_ball.collider\set_gravity_scale 0
860:        projectile_object.collider\set_gravity_scale 2
1387:    @collider\set_gravity_scale 0
1841:      @collider\set_gravity_scale 0
1854:    @collider\set_gravity_scale 1
1962:    @collider\set_gravity_scale 0
1965:    -- @collider\set_gravity_scale 1
2807:      @collider\set_gravity_scale 0.5
2817:      @collider\set_gravity_scale 0

Read (E:\a327ex\emoji-ball-battles\main.yue)

   440→        flip: an.random\sign!
   441→        speed: cloud_speed
   442→        draw_color: color(255, 255, 255, cloud_alpha)
   443→        arena_left: cloud_area_x
   444→        arena_right: @x + @w + 30
   445→      }
   446→      cloud\action (dt) =>
   447→        @x += @speed*dt
   448→        @x = @arena_left - 20 if @x > @arena_right
   449→        bg\push @x, @y, 0, @flip*@scale, @scale
   450→        bg\image cloud_image, 0, 0, @draw_color!
   451→        bg\pop!
   452→      cloud\flow_to @
   453→
   454→    @player_ball\start_moving!
   455→    @enemy_ball.collider\set_gravity_scale 0
   456→
   457→  --[[
   458→    COLLISION ENERGY SYSTEM
   459→
   460→    Box2D leaks energy even with restitution=1, causing balls to eventually stop bouncing.
   461→    This system compensates by adding energy on collisions while creating interesting
   462→    gameplay dynamics through energy redistribution and pacing control.
   463→
   464→    1. ENERGY REDISTRIBUTION (keeps both balls active) - ball-ball collisions
   465→       Problem: When a fast ball hits a slow ball, energy transfers completely,
   466→       creating a "ping-pong" effect where only one ball is fast at a time.
   467→       Solution: At higher speeds, redistribute energy between balls favoring equal splits.
   468→       - Chance to redistribute increases with speed (0% at rest, 100% at max speed)
   469→       - Uses normal distribution centered at 0.5 for the split ratio

Grep (start_moving)

451-        bg\pop!
452-      cloud\flow_to @
453-
454:    @player_ball\start_moving!
455-    @enemy_ball.collider\set_gravity_scale 0
456-
457-  --[[
--
1957-      @spring\pull 'squash_x', -amount*0.5, 3, 0.5
1958-
1959-  -- Start ball movement (called when game unpauses)
1960:  start_moving: =>
1961-    -- DEBUG: static ball at 45° for testing
1962-    @collider\set_gravity_scale 0
1963-    @collider\set_angle math.pi/4

Read (E:\a327ex\emoji-ball-battles\main.yue)

  1957→      @spring\pull 'squash_x', -amount*0.5, 3, 0.5
  1958→
  1959→  -- Start ball movement (called when game unpauses)
  1960→  start_moving: =>
  1961→    -- DEBUG: static ball at 45° for testing
  1962→    @collider\set_gravity_scale 0
  1963→    @collider\set_angle math.pi/4
  1964→    @collider\set_angular_velocity 0
  1965→    -- @collider\set_gravity_scale 1
  1966→    -- @collider\apply_impulse an.random\sign!*an.random\float(5, 10), an.random\float(-10, 10)
  1967→    -- @collider\set_angular_velocity @base_angular_velocity
  1968→
  1969→
  1970→
  1971→-- HP bar: temporary bar below entity (added as child)
  1972→class hp_bar extends object
  1973→  new: (args={}) =>
  1974→    super 'hp_bar'
  1975→    @offset_y = args.offset_y or 18
  1976→    @w = args.w or 22

Now I can see the full picture. The start_moving method has been modified for debugging — gravity is set to 0, angle forced to 45°, angular velocity to 0, and the actual movement code (gravity=1, impulse, angular velocity) is commented out. And only the player ball calls start_moving!, while the enemy ball just gets set_gravity_scale 0.

Let me also check the git log as you asked.

Bash (cd E:/a327ex/emoji-ball-battles && git log --oneline -20)

8e179dd EBB Flute
bd43f6d EBB Headless Mode 2
732891f EBB Headless Mode
8863ef0 EBB Bow 2
2f15ee6 EBB Bow
48360ac EBB UI 2
664d801 EBB Sword
4119ead EBB Sword (Redo)
b523f5a Update todo
97b1a4c EBB Status Effect System Design
2dc6c03 Sync API documentation and update main.lua
626d713 EBB Weapon Design and Plan
413decf EBB Gameplay Mechanics, UI 2
dd8e77f EBB UI 1
23ae623 EBB Sounds 1
647a264 EBB Visual Polish
ed892d7 Wall Dither Checkpoint
d10ac4c EBB Combat Juice Part 3 (Gun)
56a7970 EBB Combat Juice Part 2 (Plants)
72510b7 EBB Combat Juice Part 1

OK, so the last commit was the flute work. Let me look at the pre-flute commit to see what start_moving and ball spawning looked like before.

Bash (cd E:/a327ex/emoji-ball-battles && git show bd43f6d:main.yue | grep -n "start_mo...)

341:    @player_ball = ball @x + @w*0.25, @y + @h/2, 'player', headless_player_weapon
342:    @enemy_ball = ball @x + @w*0.75, @y + @h/2, 'enemy', headless_enemy_weapon
455:    @player_ball\start_moving!
456:    @enemy_ball\start_moving!
521:        @player_ball\start_moving!
522:        @enemy_ball\start_moving!
1958:  start_moving: =>

Bash (cd E:/a327ex/emoji-ball-battles && git show bd43f6d:main.yue | sed -n '1958,1970...)

  start_moving: =>
    @collider\set_gravity_scale 1
    @collider\apply_impulse an.random\sign!*an.random\float(5, 10), an.random\float(-10, 10)
    @collider\set_angular_velocity @base_angular_velocity



-- HP bar: temporary bar below entity (added as child)
class hp_bar extends object
  new: (args={}) =>
    super 'hp_bar'
    @offset_y = args.offset_y or 18
    @w = args.w or 22

Now I have the full picture. Here are the three fixes:

  1. Enemy spawn position: @w*0.9, @h*0.1@w*0.75, @h/2 (mirrored from player)
  2. Both balls start moving: Restore @enemy_ball\start_moving! call alongside player
  3. Restore start_moving: Un-debug it back to gravity=1, random impulse, angular velocity

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. Three changes made:

  1. Enemy spawn: @w*0.9, @h*0.1@w*0.75, @h/2 — now mirrors the player position (both vertically centered, player at 25%, enemy at 75%)
  2. Both balls start: Restored @enemy_ball\start_moving! (was just set_gravity_scale 0)
  3. start_moving restored: Removed the debug override (static at 45°, no gravity) and restored the original: gravity=1, random impulse, base angular velocity

There was some code added to make sure the weapons start charging their cooldown instead of already ready to fire, but this isn't showing up in the cooldown UI bar.

Let me look at the weapon auto-attack setup and the cooldown bar class.

Read (E:\a327ex\emoji-ball-battles\main.yue)

  1385→    -- Ball starts with no gravity until game starts
  1386→    @\add timer!
  1387→    @collider\set_gravity_scale 0
  1388→
  1389→    -- Weapon auto-attack setup (requires timer initialized above)
  1390→    if @weapon_type == 'gun'
  1391→      @gun_ready = false
  1392→      @timer\after @base_cooldown, 'gun_cooldown', -> @gun_ready = true
  1393→      @timer\when (-> @gun_ready and @\gun_is_aligned!), 'gun_fire', (-> @\gun_fire!)
  1394→    elseif @weapon_type == 'sword'
  1395→      @thrust_ready = false
  1396→      @timer\after @thrust_cooldown, 'thrust_cooldown', -> @thrust_ready = true
  1397→      @timer\when (-> @thrust_ready and @\sword_is_aligned!), 'sword_thrust', (-> @\sword_thrust!)
  1398→    elseif @weapon_type == 'bow'
  1399→      @bow_ready = false
  1400→      @timer\after @bow_cooldown, 'bow_cooldown', -> @bow_ready = true
  1401→      @timer\when (-> @bow_ready and @\bow_is_aligned!), 'bow_fire', (-> @\bow_fire!)
  1402→  update: (dt) =>
  1403→    -- When paused, use dt = 0 so physics logic doesn't run
  1404→    dt = 0 if @parent.paused

Grep (class cooldown_bar|cooldown_bar)

1365:    @\add cooldown_bar!
1498:      bow_should_pull = @cooldown_bar.progress >= 0.75
1788:    @cooldown_bar\activate cooldown
1861:    @cooldown_bar\activate @thrust_cooldown
1915:      @cooldown_bar\activate @bow_cooldown
2000:class cooldown_bar extends object
2002:    super 'cooldown_bar'

Read (E:\a327ex\emoji-ball-battles\main.yue)

  2000→class cooldown_bar extends object
  2001→  new: (args={}) =>
  2002→    super 'cooldown_bar'
  2003→    @w = args.w or 20
  2004→    @h = args.h or 3
  2005→    @bg_color = args.bg_color or (color 0, 0, 0, 160)
  2006→    @fill_color = args.fill_color or (color 255, 255, 255)
  2007→    @progress = 1
  2008→    @duration = 0
  2009→    @elapsed = 0
  2010→    @active = false
  2011→
  2012→  activate: (duration) =>
  2013→    @duration = duration
  2014→    @elapsed = 0
  2015→    @progress = 0
  2016→    @active = true
  2017→
  2018→  update: (dt) =>
  2019→    if @active
  2020→      @elapsed += dt
  2021→      @progress = math.min(1, @elapsed/@duration)
  2022→      if @progress >= 1
  2023→        @active = false
  2024→    if @active
  2025→      wx = @parent.weapon_ui.weapon_x
  2026→      wy = @parent.weapon_ui.weapon_y + 17
  2027→      ui\push wx, wy, 0, 1, 1
  2028→      ui\rounded_rectangle -@w/2, -@h/2, @w, @h, 2, @bg_color!
  2029→      ui\rounded_rectangle -@w/2, -@h/2, @w*@progress, @h, 2, @fill_color!
... [10 more lines]

I see the issue. The weapon auto-attack setup (lines 1390-1401) starts each weapon with _ready = false and a timer\after for the cooldown duration, but it never calls @cooldown_bar\activate with the initial cooldown. So the cooldown bar starts with @progress = 1 and @active = false — it just sits invisible while the actual cooldown timer ticks.

The fix is to add @cooldown_bar\activate calls right after each timer\after in the weapon setup. Let me check what duration each weapon uses.

Edit (E:\a327ex\emoji-ball-battles\main.yue)

The file E:\a327ex\emoji-ball-battles\main.yue has been updated successfully.

Added @cooldown_bar\activate with the matching cooldown duration to each weapon's auto-attack setup. Now the UI bar will show the initial cooldown filling up instead of being invisible.

OK, now let's do design work. @emoji-ball-battles\todo.md has the current design for weapons we were going to add next. I believe quite a few of them will be added as they are, but there are likely many that will not make it. This is because now that I've thought about the game more I realize that there are certain variables that we weren't taking into account before. For instance, battles take quite a long time, and this is because later we'll want to add items to the game, so it'll be a lot faster, but this means we have to be careful about how things scale. +1 damage per hit is terrible scaling because it's way too OP and makes the battle one-sided immediately. Same for the initial flute design of having notes orbitting around it. Given that battles last long, any permanent effects that add damage are way too strong. Essentially, many of the designs are likely busted on this front.

However, there's another front I ignored which is the "play variety" angle. Consider the existing weapons. Gun, bow and sword all use the raycast to trigger their effects. Dagger is the only one that uses rotation only. Gun and bow are projectiles, and both have special effects that increase the number of projectiles (via attack speed/burst or +arrow count). Sword is fully melee but also uses the raycast. What all these have in common is that as the battle progresses, it gets more chaotic, either with increased projectile count, increased thrust damage, or increased rotation speed. But all these are primarily VISUAL effects. They scale in a nice way against each other and none is too OP, but they also scale in a way that makes the game feel compelling to watch. All weapons should be like this.

There's another componet to it which is the type of attack the weapon has. Dagger is rotation, so it's like a small area around it. Sword is thrust, so it's a line in front of it. Gun fires 1 or 3 shots that bounce many times, so it's kind of a random projectile path/area coverage via lots of projectiles. Bow is the same but it's arrows that don't bounce. We want to explore all possibilities for attacks. So lines to the sides/behind, areas in front, behind, projectile paths that have different behaviors (i.e. boomerang is a good example of this), and then all the ones involving stacked effects which are already in the document. But we want to kind of exhaustively go through these combinations, among with other combinations of shapes + effects, and see what we can come up with. I believe Path of Exile is a really good place to look at for this general theory of attack/spell shapes. There's lines, cones, areas, delayed areas, rings, etc. We should have similar behaviors in our weapons.

What I want you to do is explore this design space. You don't have to tie any of it to specific emojis yet, although it may help. Just the shapes of all attacks (line, cone, area type 1-2-3, etc), against the type of attack (projectile, melee, swing, etc) and see what comes out the other end. I recommend using Path of Exile as a loose reference along these lines. Before you start, I'd like you to tell me if you understand me and if you have any questions.

I understand the core insight well. Let me restate it to make sure:

The scaling problem: Battles are long, so any permanent numerical scaling (damage, orbiting entities, etc.) becomes dominant. The existing weapons that work well scale visually — more projectiles, faster rotation, bigger thrusts — which makes the game more exciting to watch without breaking balance. The visual chaos IS the scaling, not raw damage numbers.

The design space problem: You want to systematically map out attack shapes (line, cone, area, ring, etc.) crossed with attack types/behaviors (rotation, projectile, thrust, beam, etc.) to find the full set of interesting weapon designs, rather than inventing weapons ad-hoc and hoping they're distinct.

Before I start exploring, a few questions:

AskUserQuestion

User has answered your questions: "The arena is a 200x200 box with gravity and bouncy walls. Some PoE shapes (ground-targeted circles, long-range beams, etc.) don't map directly. Should I think about shapes strictly in terms of what's physically meaningful in this arena, or explore more abstractly and we'll figure out the mapping later?"="Arena-grounded", "Currently dagger uses pure rotation, while gun/bow/sword all use the raycast-alignment mechanic (fire when pointing at enemy). Should I treat alignment as a universal mechanic most weapons use, or should some weapons deliberately break from it (e.g. fire in all directions, fire on a timer regardless of aim, fire based on position rather than angle)?"="Explore alternatives", "What format would be most useful for the exploration? A systematic matrix (shape × type grid), a narrative exploration that builds up the vocabulary then combines, or something else?"="Build vocabulary first". You can now continue with the user's answers in mind.

Good, those answers sharpen the scope nicely. Let me think through this carefully and write it up.

Write (E:\a327ex\emoji-ball-battles\reference\attack-design-space.md)

File created successfully at: E:\a327ex\emoji-ball-battles\reference\attack-design-space.md

Bash (~/bin/neovim.exe E:/a327ex/emoji-ball-battles/reference/attack-design-space.md -...)

Command running in background with ID: baf8e62. Output is being written to: C:\Users\adn\AppData\Local\Temp\claude\E--a327ex\tasks\baf8e62.output

Opened the doc in NeoVim. Here's the structure of the exploration:

Part 1 — Shape Vocabulary (19 shapes): Point, Forward Line, Cone, Arc/Sweep, Full Circle, Expanding Ring, Cross Burst, Orbital, then projectile variants (straight, bouncing, gravity-arc, returning, spiral, zigzag, homing), then placed effects (zone, trail, wall effect, trap).

Part 2 — Behavior Vocabulary (9 behaviors): Continuous, Triggered-Single, Triggered-Burst, Triggered-Volley, Channeled, Charge-and-Release, Reactive, Periodic/Timer, Conditional/Positional.

Part 3 — Trigger Vocabulary (8 triggers): Raycast alignment, rotation completion, timer, proximity, wall contact, speed/velocity, accumulation, on-hit.

Part 4 — Scaling Vocabulary: What's visually good vs numerically dangerous. The sweet spot is scaling that is both visible AND naturally bounded (like +arrows, where marginal value decreases).

Part 5 — Interesting Intersections: ~20 specific combinations worth considering, organized by category (forward-directed, radial, projectile variants, placed effects, hybrids, trigger-interesting).

Part 6 — Existing todo reassessment: Which designs survive, which need scaling rework, which shapes from the analysis are completely missing from the current todo.

The most important finding is probably the unexplored shapes — expanding ring/shockwave, cross burst, spiral projectile, wall surge, rotation-triggered nova, impact zones, speed-triggered burst, and movement trail. None of these appear in the current weapon list.

Aboslutely stellar analysis. Now, regardless of the emojis that are already designed, try to match an emoji to each of the combinations in part 5. If you can't find an emoji that fits, you may change the combination itself. Favor the emoji making sense over getting the exact combinations as they were listed there. Add these ideas to the end of the document you just created.

Let me re-read the end of the document so I know where to append.

Read (E:\a327ex\emoji-ball-battles\reference\attack-design-space.md)

   240→
   241→### E. Hybrid / Unusual Combinations
   242→
   243→**Rotation + Periodic Burst + Rotation-Completion = Spin-and-Fling**
   244→Weapon rotates continuously like dagger (contact damage), but every N rotations it RELEASES projectiles tangentially. Like a sprinkler that flings droplets as it spins. Scaling: more projectiles per fling, or more frequent flings. Combines melee presence with projectile escalation. Visually: a spinning weapon periodically scattering projectiles outward.
   245→
   246→**Charge + Ring + Accumulation = Pulse Bomb**
   247→Each HIT on the enemy builds a visible charge. At threshold, releases an expanding damage ring. Scaling: lower threshold (more frequent pulses) or bigger rings. Creates a "building toward something" tension, then a dramatic release. The ring is a distinctive visual punctuation mark.
   248→
   249→**Tether + Triggered + Alignment = Chain Weapon**
   250→Fire a projectile that attaches to the enemy via a chain/rope. While tethered, the chain itself deals damage — anything crossing the line between the two balls takes damage. Scaling: more simultaneous tethers (multiple chains criss-crossing the arena). Visually: lines connecting the balls that other projectiles/effects interact with.
   251→
   252→**Projectile + Zone-on-Impact + Gravity-Arc = Carpet Bomber**
   253→Fire arc projectiles that create small damage zones where they land. Scaling: more projectiles per volley, zones last longer. The arena floor gradually gets covered in overlapping impact zones. Combines the visual of arcing trajectories (air) with persistent zones (ground).
   254→
   255→**Line + Reactive + On-Wall = Wall Beam**
   256→When the ball is touching or near a wall, fire a beam along the wall surface (horizontal or vertical line hugging the wall). Since balls frequently hit walls, this fires often. Scaling: beam gets longer or wider. Creates lines of damage along arena edges — a very different visual from center-of-arena attacks.
   257→
   258→**Returning + Orbital + Triggered = Yo-Yo**
   259→Projectile goes out, then instead of returning directly, orbits the ball once or twice before being "caught" and becoming ready to throw again. Creates a rhythm: throw → orbit → catch → throw. Scaling: more simultaneous yo-yos, or more orbits before catch. The orbiting phase provides melee-like area denial while the throw provides ranged reach.
   260→
   261→### F. Trigger-Interesting Designs
   262→
   263→**Proximity-Triggered Mode Switch**
   264→Weapon behaves differently based on distance to enemy. Close: continuous rotation damage (dagger-like). Far: fires projectiles (gun-like). Scaling: both modes get more intense. Creates a weapon with two visual identities depending on the state of the fight.
   265→
   266→**Speed-Triggered Burst**
   267→When ball exceeds a speed threshold (from a hard bounce), fires a burst of projectiles in the movement direction. Faster ball = more projectiles in the burst. The weapon converts kinetic energy into attacks. Scaling: lower speed threshold (fires more often) or more projectiles per burst. Ties weapon activity directly to the kinetic energy of the fight.
   268→
   269→**Wall-Impact Counter**
... [43 more lines]

Now let me think through the emoji matches carefully and append them.

Edit (E:\a327ex\emoji-ball-battles\reference\attack-design-space.md)

The file E:\a327ex\emoji-ball-battles\reference\attack-design-space.md has been updated successfully.

Bash (~/bin/neovim.exe E:/a327ex/emoji-ball-battles/reference/attack-design-space.md -...)

Command running in background with ID: b7593de. Output is being written to: C:\Users\adn\AppData\Local\Temp\claude\E--a327ex\tasks\b7593de.output

Done. Part 7 has 22 emoji-matched weapon concepts. Here's the quick summary:

New weapons (not in todo):

Existing todo weapons kept/reshaped: 🔦 🪃 🪨 💿 🥄 ✏️ ⛓️ 🔔, plus 🔨 reimagined as a slam instead of pure rotation.

<task-notification> <task-id>baf8e62</task-id> <output-file>C:\Users\adn\AppData\Local\Temp\claude\E--a327ex\tasks\baf8e62.output</output-file> completed

Background command "Open design doc in NeoVim with MarkdownPreview" completed (exit code 0) </task-notification> Read the output file to retrieve the result: C:\Users\adn\AppData\Local\Temp\claude\E--a327ex\tasks\baf8e62.output

Read (C:\Users\adn\AppData\Local\Temp\claude\E--a327ex\tasks\baf8e62.output)

NeoVim exited cleanly (empty output is normal for a GUI process). The doc should still be open from the second launch. Let me know what you think of the weapon concepts — happy to dig deeper into any of them.

<task-notification> <task-id>b7593de</task-id> <output-file>C:\Users\adn\AppData\Local\Temp\claude\E--a327ex\tasks\b7593de.output</output-file> completed

Background command "Reopen updated doc in NeoVim" completed (exit code 0) </task-notification> Read the output file to retrieve the result: C:\Users\adn\AppData\Local\Temp\claude\E--a327ex\tasks\b7593de.output

Read (C:\Users\adn\AppData\Local\Temp\claude\E--a327ex\tasks\b7593de.output)

Same — NeoVim exited cleanly with no console output. The document is updated and ready for review whenever you're ready to look at it.

OK, now let's clean up the todo and remove the weapons as they are designed. Move them to this design file, but note in the file that they are older designs that don't take into account these new ideas.

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→---
     8→
     9→## Weapon Implementation Order
    10→
    11→*Interleaved easy/hard for pacing. Already implemented: Dagger, Gun, Sword, Bow.*
    12→
    13→### Block 1: Easy projectile weapons (no new systems needed)
    14→
    15→- 🪈 Flute — rotation weapon, physical hits create orbiting notes, +notes per hit
    16→  - Rotation weapon like Dagger (angular velocity scaling per hit)
    17→  - On hit: spawn a 🎵 note that orbits the ball at fixed radius
    18→  - Notes deal damage on contact with enemies
    19→  - +1 note per hit (growing danger zone around ball)
    20→  - Notes persist until ball dies or max cap reached
    21→
    22→- 🪨 Rock — throws rocks in arc, +rock count per hit
    23→  - Copy Gun's firing logic
    24→  - Add gravity to projectile (like arrow parry's gravity_scale)
    25→  - Multi-projectile scaling per hit (like Bow)
    26→  - Arc trajectory: fire at angle above target, gravity brings it down
    27→
    28→- 🪭 Fan — releases slow dash projectiles, +projectile count per hit
    29→  - Copy Gun's firing logic
    30→  - Projectile moves slowly (low velocity), no gravity
... [283 more lines]

Now let me read the end of the design file to know where to append the old designs.

Read (E:\a327ex\emoji-ball-battles\reference\attack-design-space.md)

   380→
   381→### D. Placed / Persistent Effects
   382→
   383→**🖌️ Paintbrush — Wall-Impact Zones**
   384→*Zone + Reactive + Wall-Contact*
   385→Each time the ball hits a wall, a paint splat appears at the impact point — a small circular damage zone. Scaling: +zone duration per hit (splats last longer, more accumulate). Visually: the arena borders gradually fill with colorful overlapping paint splats. Over time the walls become "painted" with danger zones. Unique because it weaponizes the ball's bouncing itself — more energetic bouncing means more paint on the walls. Strong visual identity: the arena literally gets more colorful as the fight progresses.
   386→
   387→**✏️ Pencil — Movement Trail**
   388→*Trail + Continuous + Movement*
   389→Already in the todo. The ball's trajectory becomes a damaging line. Scaling: +trail duration per hit. Visually: the arena fills with the ball's drawn path, creating complex geometric patterns from bouncing.
   390→
   391→**🪤 Mouse Trap — Minefield**
   392→*Trap + Periodic + Timer*
   393→Periodically drops a trap at the ball's current position. Traps arm after a short delay (visual: trap opens), then snap when the enemy ball passes over them. Scaling: +trap active count per hit (shorter cooldown, more traps coexist). Visually: the arena floor fills with tiny open traps that SNAP shut with a satisfying visual when triggered. The accumulation of dormant traps across the arena is the visual escalation — you can see the minefield growing.
   394→
   395→**⛏️ Pickaxe — Wall Surge**
   396→*Wall Effect + Reactive + Wall-Contact*
   397→When the ball hits a wall, the pickaxe strike sends a shockwave racing along the wall surface in both directions from the impact point. The surge damages anything it passes (including the enemy ball if it's near that wall). Scaling: +surge travel distance per hit (starts short, eventually races along the full wall length and around corners). Visually: bright streaks racing along the arena borders, like cracks of energy through stone. Uses the arena geometry itself as the attack's shape — totally unique to a bouncy-box game.
   398→
   399→### E. Hybrid / Unusual Combinations
   400→
   401→**🪅 Piñata — Spin-and-Fling**
   402→*Rotation + Periodic Burst + Rotation-Completion*
   403→Rotates continuously like a dagger (contact damage from the piñata itself), but every N rotations it bursts, scattering candy/confetti projectiles in all directions tangentially. Then it "reforms" and keeps spinning. Scaling: +candy per burst per hit. Visually: a spinning piñata that periodically EXPLODES with colorful projectiles scattering outward, then reconstitutes. Combines melee rotation presence with periodic ranged bursts. The cheerful chaos of candy flying everywhere is a strong visual identity.
   404→
   405→**🔔 Bell — Resonance Pulse**
   406→*Charge + Ring + Accumulation*
   407→Already in the todo as resonance stacks, but the SHAPE of the payoff should be an expanding ring rather than flat damage. Each hit on the enemy builds visible resonance (the bell glows brighter, vibrates more). At threshold: a large expanding ring shockwave. Scaling: +ring size per hit, or lower threshold (more frequent rings). Visually: the buildup of glowing/vibrating energy, then a dramatic ring burst — a visual exclamation mark.
   408→
   409→**⛓️ Chain — Tether Weapon**
... [25 more lines]

Good, I have the full picture. Now I'll:

  1. Append the old weapon designs to the design file under a clearly labeled archival section
  2. Strip the weapon blocks from todo.md, keeping the non-weapon sections

Edit (E:\a327ex\emoji-ball-battles\reference\attack-design-space.md)

The file E:\a327ex\emoji-ball-battles\reference\attack-design-space.md has been updated successfully.

Now strip the weapon designs from todo.md, keeping the non-weapon sections.

Edit (E:\a327ex\emoji-ball-battles\todo.md)

The file E:\a327ex\emoji-ball-battles\todo.md has been updated successfully.

Let me verify the todo looks clean.

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→---
     8→
     9→## Weapon Design
    10→
    11→Weapon designs have been moved to `reference/attack-design-space.md`, which contains the shape/behavior/scaling framework and both old and new weapon concepts.
    12→
    13→---
    14→
    15→## Other Systems
    16→
    17→- UI effect anti-overlap system: tag all floating UI effects (status_text, emoji_text, damage numbers) as spatial UI elements with a bounding box
    18→- UI effect anti-overlap system: when spawning a new UI element, query all active UI elements for their current bounding boxes and projected positions
    19→- UI effect anti-overlap system: find the closest unoccupied position to the desired spawn point that doesn't visually collide with existing UI elements
    20→- UI effect anti-overlap system: account for movement direction/velocity of existing elements (e.g., emoji_text floats upward) when checking for collisions
    21→
    22→## Classes (post-weapons)
    23→
    24→- Fencer class:
    25→  - PASSIVE gains fencing stacks per parry (+1 damage per stack, low duration)
    26→  - ACTIVE triggers lunge attack (like Earclacks' Lance) at X fencing stacks.
    27→  - Synergizes with duration items - even small duration boosts compound into much higher damage.
    28→- Spellblade class:
    29→  - PASSIVE: swaps weapons periodically between dagger and staff/wand
    30→  - 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.
... [6 more lines]

Done. All weapon designs (Blocks 1–13 plus the status effect system infrastructure) have been moved to reference/attack-design-space.md under a new "Appendix: Original Weapon Designs (Pre-Redesign)" section with a note that they predate the visual scaling framework. The todo now just has a pointer to the design file, plus the remaining non-weapon sections (Other Systems, Classes, Ideas).

OK, now let's create a reference matrix or table of sorts that includes all elements for creating new attacks. Place this file at the top level folder, where main.yue is.

Write (E:\a327ex\emoji-ball-battles\ATTACK_REFERENCE.md)

File created successfully at: E:\a327ex\emoji-ball-battles\ATTACK_REFERENCE.md

Bash (~/bin/neovim.exe E:/a327ex/emoji-ball-battles/ATTACK_REFERENCE.md -- -c "Markdow...)

Command running in background with ID: bed0d95. Output is being written to: C:\Users\adn\AppData\Local\Temp\claude\E--a327ex\tasks\bed0d95.output

Created ATTACK_REFERENCE.md next to main.yue. It has:

Actually, move this file to the docs folder.

Bash (mv E:/a327ex/emoji-ball-battles/ATTACK_REFERENCE.md E:/a327ex/emoji-ball-battles...)

Moved to emoji-ball-battles/docs/ATTACK_REFERENCE.md.