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<tool_use_error>Sibling tool call errored</tool_use_error>

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E:\a327ex\Orblike\implemented.md

     1→# Implemented
     2→
     3→## Abilities
     4→
     5→- **Fireball** — Projectile that explodes on hit, spawning an area that deals AoE damage.
     6→
     7→## Modifiers
     8→
     9→- **Homing** — Projectile steers toward closest enemy with quadratic distance falloff past 200 units. Convergence force and duration randomized per projectile at spawn.
    10→- **Weaker Homing** — Lower convergence force and higher duration for softer tracking.
    11→- **Stronger Homing** — Higher convergence force and lower duration for aggressive tracking.
    12→- **Progressively Increasing Homing** — After 0.5s, convergence increases continuously at 15% of base value per 0.5s, capped at 0.95.
    13→- **Progressively Decreasing Homing** — After 0.5s, convergence decreases continuously at 15% of base value per 0.5s, no lower limit.
    14→- **Delayed Homing** — Homing activates after 0.5s instead of the default 0.2s.
    15→- **Very Delayed Homing** — Homing activates after 1s.
    16→

     1→require('anchor')({width = 480, height = 270, scale = 3})
     2→
     3→gw, gh = an.width, an.height
     4→
     5→volumes = {
     6→  enemy_die = 0.8,
     7→  enemy_hit = 0.8,
     8→  fireball_fire = 0.45,
     9→  fireball_hit = 0.45,
    10→  enemy_spawn = 0.59,
    11→  player_hit = 0.39,
    12→}
    13→
    14→-- SNKRX palette
    15→bg_color = color(48, 48, 48)
    16→bg_off = color(46, 46, 46)
    17→fg_color = color(218, 218, 218)
    18→fg_alt = color(176, 168, 159)
    19→yellow = color(250, 207, 0)
    20→orange = color(240, 112, 33)
    21→blue = color(1, 155, 214)
    22→green = color(139, 191, 64)
    23→red = color(233, 29, 57)
    24→purple = color(142, 85, 158)
    25→blue2 = color(71, 120, 186)
    26→yellow2 = color(245, 159, 16)
    27→
    28→palette = {fg_color, fg_alt, yellow, orange, blue, green, red, purple, blue2, yellow2}
    29→
    30→-- Physics
... [1080 more lines]

[
  {
    "type": "text",
    "text": "Great! Now I have comprehensive information. Let me compile my findings:\n\n## Research Summary: Enemy-Enemy Collision Handling in Reference Projects\n\nBased on my thorough exploration of the reference projects and Anchor engine code, here's what I found regarding how seekers/enemies handle physical collision with each other:\n\n### **1. SNKRX Approach: Hybrid Two-Layer System**\n\nSNKRX uses a sophisticated two-layer collision approach:\n\n#### **Layer 1: Soft Separation Forces (Steering Behaviors)**\n\nIn the Seeker class update function (line 331):\n```lua\n-- E:\\a327ex\\Orblike\\reference\\SNKRX\\enemies.lua\nself:steering_separate(16, main.current.enemies)\n```\n\nThe `steering_separate` function (from `/e/a327ex/Orblike/reference/SNKRX/engine/game/steering.lua` lines 164-178):\n```lua\nfunction Physics:steering_separate(rs, class_avoid_list, weight)\n  self.separating = true\n  local fx, fy = 0, 0\n  local objects = table.flatten(table.foreachn(class_avoid_list, function(v) return self.group:get_objects_by_class(v) end), true)\n  for _, object in ipairs(objects) do\n    if object.id ~= self.id and math.distance(object.x, object.y, self.x, self.y) < 2*rs then\n      local tx, ty = self.x - object.x, self.y - object.y\n      local nx, ny = math.normalize(tx, ty)\n      local l = math.length(nx, ny)\n      fx = fx + rs*(nx/l)\n      fy = fy + rs*(ny/l)\n    end\n  end\n  self.separation_f:set(fx*(weight or 1), fy*(weight or 1))\nend\n```\n\n**How it works:**\n- Every frame, each seeker checks all nearby enemies\n- If another enemy is within `2*rs` distance (separation radius), it calculates a repulsion force\n- The force points away from the other object and is proportional to the separation radius\n- The separation force is added to the steering system's force accumulator\n- Parameters used:\n  - **Seeker**: `16` pixel separation radius\n  - **EnemyCritter**: `8` pixel separation radius (smaller, more aggressive)\n\n#### **Layer 2: Physical Collision Callbacks**\n\nWhen enemies actually collide (physics overlap), the `on_collision_enter` callback fires (line 369-437):\n```lua\nfunction Seeker:on_collision_enter(other, contact)\n  local x, y = contact:getPositions()\n\n  if other:is(Wall) then\n    -- Handle wall collision (bounce)\n    self.hfx:use('hit', 0.15, 200, 10, 0.1)\n    self:bounce(contact:getNormal())\n    \n  elseif table.any(main.current.enemies, function(v) return other:is(v) end) then\n    -- Enemy-enemy collision handling\n    if self.being_pushed and math.length(self:get_velocity()) > 60 then\n      -- If currently being knocked back with high velocity, deal damage and push the other enemy\n      other:hit(math.floor(self.push_force/4), nil, nil, true)\n      self:hit(math.floor(self.push_force/2), nil, nil, true)\n      other:push(math.floor(self.push_force/2), other:angle_to_object(self))\n      HitCircle{group = main.current.effects, x = x, y = y, rs = 6, color = fg[0], duration = 0.1}\n      for i = 1, 2 do HitParticle{group = main.current.effects, x = x, y = y, color = self.color} end\n      hit2:play{pitch = random:float(0.95, 1.05), volume = 0.35}\n\n    elseif self.headbutting then\n      -- Headbutter special attack - push other enemy away\n      other:push(math.length(self:get_velocity())/4, other:angle_to_object(self))\n      HitCircle{group = main.current.effects, x = x, y = y, rs = 6, color = fg[0], duration = 0.1}\n      for i = 1, 2 do HitParticle{group = main.current.effects, x = x, y = y, color = self.color} end\n      hit2:play{pitch = random:float(0.95, 1.05), volume = 0.35}\n      if other:is(Seeker) or other:is(Player) then self.headbutting = false end\n    end\n  end\nend\n```\n\n**Key behavior:**\n- Enemies DO physically collide with each other (not disabled)\n- Default physics engine handles normal bouncing/separation\n- Special damage/push behavior only occurs when:\n  - One enemy is currently being knocked back (`self.being_pushed`) with high velocity\n  - Or if it's a headbutter's special attack\n- Otherwise, they just bounce off each other normally\n\n### **2. Physics World Configuration**\n\nFrom `/e/a327ex/Orblike/reference/SNKRX/engine/game/group.lua` (lines 314-348):\n\n**Setup:**\n```lua\nfunction Group:set_as_physics_world(meter, xg, yg, tags)\n  love.physics.setMeter(meter or 192)\n  self.tags = table.unify(table.push(tags, 'solid'))\n  self.collision_tags = {}\n  self.trigger_tags = {}\n  for i, tag in ipairs(self.tags) do\n    self.collision_tags[tag] = {category = i, masks = {}}\n    self.trigger_tags[tag] = {category = i, triggers = {}}\n  end\n\n  self.world = love.physics.newWorld(xg or 0, yg or 0)\n  self.world:setCallbacks(\n    function(fa, fb, c)\n      local oa, ob = self:get_object_by_id(fa:getUserData()), self:get_object_by_id(fb:getUserData())\n      if fa:isSensor() or fb:isSensor() then\n        if fa:isSensor() then if oa.on_trigger_enter then oa:on_trigger_enter(ob, c) end end\n        if fb:isSensor() then if ob.on_trigger_enter then ob:on_trigger_enter(oa, c) end end\n      else\n        if oa.on_collision_enter then oa:on_collision_enter(ob, c) end\n        if ob.on_collision_enter then ob:on_collision_enter(oa, c) end\n      end\n    end,\n    -- ... exit callback ...\n  )\n  return self\nend\n```\n\n**Collision Control Functions:**\n```lua\n-- Enable physical collisions between two tags\nfunction Group:enable_collision_between(tag1, tag2)\n  table.delete(self.collision_tags[tag1].masks, self.collision_tags[tag2].category)\nend\n\n-- Disable physical collisions between two tags\nfunction Group:disable_collision_between(tag1, tag2)\n  table.insert(self.collision_tags[tag1].masks, self.collision_tags[tag2].category)\nend\n\n-- Enable trigger events (overlap detection without physical response)\nfunction Group:enable_trigger_between(tag1, tag2)\n  table.insert(self.trigger_tags[tag1].triggers, self.trigger_tags[tag2].category)\nend\n```\n\n**For enemies in SNKRX 112020:**\n```lua\nmain = Group(camera):set_as_physics_world(32, 0, 0, {\n  'unit',\n  'projectile',\n  'enemy'\n})\n-- No disable_collision_between calls for enemy-enemy \u2192 they collide physically\n```\n\n### **3. Anchor Engine-Level Support (C Implementation)**\n\nFrom `/e/a327ex/Anchor/engine/src/anchor.c`:\n\n**Collision Mask System (lines 464-467):**\n```c\nuint64_t category_bit;    // Single bit identifying this tag (1, 2, 4, 8, ...)\nuint64_t collision_mask;  // Which tags this collides with (physical response)\nuint64_t sensor_mask;     // Which tags trigger sensor events\nuint64_t hit_mask;        // Which tags trigger hit events\n```\n\n**Enabling/Disabling Collision (lines 5460-5477):**\n```c\n// Enable collision between two tags\ntag_a->collision_mask |= tag_b->category_bit;\ntag_b->collision_mask |= tag_a->category_bit;\n\n// Disable collision between two tags\ntag_a->collision_mask &= ~tag_b->category_bit;\ntag_b->collision_mask &= ~tag_a->category_bit;\n```\n\n**Shape Creation with Filter (lines 5625-5632):**\n```c\ndef->filter.categoryBits = tag->category_bit;\ndef->filter.maskBits = tag->collision_mask | tag->sensor_mask;\ndef->enableSensorEvents = (tag->sensor_mask != 0);\ndef->enableContactEvents = (tag->collision_mask != 0);\ndef->enableHitEvents = (tag->hit_mask != 0);\n```\n\n### **4. BUILDRX2 Simpler Example**\n\nThe BUILDRX2 reference shows a simpler approach with basic collision handling and direct impulse application (line 609):\n```lua\nself:apply_steering_impulse(250, other:angle_to_object(self), 0.6)\n```\n\n### **Summary: Key Findings**\n\n**Question 1: How do reference projects handle enemy-enemy collision?**\n- **Separation forces (soft):** `steering_separate()` is called every frame to gently push enemies apart before they collide\n- **Physics collision (hard):** Enemies have full physical collision enabled by default\n- **Special handling:** When enemies are knocked back or performing special attacks, additional effects trigger on collision\n\n**Question 2: What does Anchor engine support for same-tag collision?**\n- Full support for enabling/disabling collision between any two tags\n- Collision is controlled via bitmask operations on `collision_mask`\n- By default (no configuration), all tags collide with all other tags\n- You can selectively disable collisions or enable trigger-only detection\n\n**Question 3: Typical approach?**\n- **BEST PRACTICE from SNKRX:** Full physics collision + steering-based soft separation\n- Enemies physically collide and bounce off each other (full Box2D response)\n- Each frame, enemies apply repulsion forces to nearby enemies (steering separation)\n- This creates a \"soft crowd separation\" where enemies try to avoid each other but can still get pushed through in extreme cases\n- Special callbacks handle game-specific logic (damage, knockback effects, etc.)\n\nThe steering separation radius is the key tuning parameter - it determines how much \"personal space\" each enemy maintains before physical collisions occur."
  },
  {
    "type": "text",
    "text": "agentId: a58c00a7561d87b23 (for resuming to continue this agent's work if needed)\n<usage>total_tokens: 63562\ntool_uses: 38\nduration_ms: 202381</usage>"
  }
]

No matches found

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460-#define MAX_TAG_NAME 32
461-
462-typedef struct {
463-    char name[MAX_TAG_NAME];
464-    uint64_t category_bit;    // Single bit identifying this tag (1, 2, 4, 8, ...)
465:    uint64_t collision_mask;  // Which tags this collides with (physical response)
466-    uint64_t sensor_mask;     // Which tags trigger sensor events
467-    uint64_t hit_mask;        // Which tags trigger hit events
468-} PhysicsTag;
469-
470-static PhysicsTag physics_tags[MAX_PHYSICS_TAGS];
--
5436-    // Register new tag
5437-    PhysicsTag* tag = &physics_tags[physics_tag_count];
5438-    strncpy(tag->name, name, MAX_TAG_NAME - 1);
5439-    tag->name[MAX_TAG_NAME - 1] = '\0';
5440-    tag->category_bit = (uint64_t)1 << physics_tag_count;  // Assign next bit
5441:    tag->collision_mask = 0;  // No collisions by default
5442-    tag->sensor_mask = 0;     // No sensor events by default
5443-    tag->hit_mask = 0;        // No hit events by default
5444-
5445-    physics_tag_count++;
5446-    return 0;
--
5455-
5456-    if (!tag_a) return luaL_error(L, "Unknown physics tag: %s", name_a);
5457-    if (!tag_b) return luaL_error(L, "Unknown physics tag: %s", name_b);
5458-
5459-    // Enable collision both ways
5460:    tag_a->collision_mask |= tag_b->category_bit;
... [48 more lines]

623-    contact_end_count = 0;
624-    hit_count = 0;
625-    sensor_begin_count = 0;
626-    sensor_end_count = 0;
627-}
628-
629-// Get tag index from shape's user data (stored during shape creation)
630-static int physics_get_shape_tag(b2ShapeId shape_id) {
631-    if (!b2Shape_IsValid(shape_id)) return -1;
632-    ShapeUserData* ud = (ShapeUserData*)b2Shape_GetUserData(shape_id);
633-    if (!ud) return -1;
634-    return ud->tag_index;
635-}
636-
637-\ Custom filter callback: reject collisions between shapes with same non-zero filter group
638:static bool physics_custom_filter(b2ShapeId shapeIdA, b2ShapeId shapeIdB, void* context) {
639-    ShapeUserData* ud_a = (ShapeUserData*)b2Shape_GetUserData(shapeIdA);
640-    ShapeUserData* ud_b = (ShapeUserData*)b2Shape_GetUserData(shapeIdB);
641-    if (!ud_a || !ud_b) return true;
642-    if (ud_a->filter_group != 0 && ud_a->filter_group == ud_b->filter_group) return false;
643-    return true;
644-}
645-
646-// Process physics events after b2World_Step
647-// Retrieves all events from Box2D and buffers them with tag info for Lua queries
648-static void physics_process_events(void) {
649-    if (!physics_initialized) return;
650-
651-    // Get contact events
652-    b2ContactEvents contact_events = b2World_GetContactEvents(physics_world);
... [65 more lines]

E:\a327ex\Anchor\framework\main.lua-634--- Register tags and collisions
E:\a327ex\Anchor\framework\main.lua-635-an:physics_tag('ball')
E:\a327ex\Anchor\framework\main.lua-636-an:physics_tag('wall')
E:\a327ex\Anchor\framework\main.lua-637-an:physics_tag('impulse_block')
E:\a327ex\Anchor\framework\main.lua-638-an:physics_tag('slowing_zone')
E:\a327ex\Anchor\framework\main.lua:639:an:physics_collision('ball', 'wall')
E:\a327ex\Anchor\framework\main.lua:640:an:physics_collision('ball', 'ball')
E:\a327ex\Anchor\framework\main.lua:641:an:physics_collision('ball', 'impulse_block')
E:\a327ex\Anchor\framework\main.lua-642-an:physics_sensor('ball', 'slowing_zone')
E:\a327ex\Anchor\framework\main.lua-643-an:physics_hit('ball', 'wall')
E:\a327ex\Anchor\framework\main.lua-644-
E:\a327ex\Anchor\framework\main.lua-645--- Colors (twitter emoji theme)
E:\a327ex\Anchor\framework\main.lua-646-bg_color = color(231, 232, 233)
--
E:\a327ex\Anchor\framework\anchor\init.lua-800-
E:\a327ex\Anchor\framework\anchor\init.lua-801-  --[[
E:\a327ex\Anchor\framework\anchor\init.lua-802-    Enables solid collision between two tags.
E:\a327ex\Anchor\framework\anchor\init.lua-803-
E:\a327ex\Anchor\framework\anchor\init.lua-804-    Usage:
E:\a327ex\Anchor\framework\anchor\init.lua:805:      an:physics_collision('player', 'wall')
E:\a327ex\Anchor\framework\anchor\init.lua:806:      an:physics_collision('enemy', 'wall')
E:\a327ex\Anchor\framework\anchor\init.lua-807-
E:\a327ex\Anchor\framework\anchor\init.lua-808-    Both tags must be registered first via physics_tag.
E:\a327ex\Anchor\framework\anchor\init.lua-809-  ]]
E:\a327ex\Anchor\framework\anchor\init.lua:810:  function an:physics_collision(tag_a, tag_b)
E:\a327ex\Anchor\framework\anchor\init.lua-811-    physics_enable_collision(tag_a, tag_b)
E:\a327ex\Anchor\framework\anchor\init.lua-812-    table.insert(self.collision_pairs, {a = tag_a, b = tag_b})
E:\a327ex\Anchor\framework\anchor\init.lua-813-  end
E:\a327ex\Anchor\framework\anchor\init.lua-814-
E:\a327ex\Anchor\framework\anchor\init.lua-815-  --[[

No matches found

E:\a327ex\Anchor\framework\anchor\array.lua-322-
E:\a327ex\Anchor\framework\anchor\array.lua-323-  Parameters:
E:\a327ex\Anchor\framework\anchor\array.lua-324-    t         - array to join
E:\a327ex\Anchor\framework\anchor\array.lua:325:    separator - (optional) string between elements, default ''
E:\a327ex\Anchor\framework\anchor\array.lua-326-
E:\a327ex\Anchor\framework\anchor\array.lua-327-  Returns: concatenated string
E:\a327ex\Anchor\framework\anchor\array.lua-328-]]
E:\a327ex\Anchor\framework\anchor\array.lua:329:function array.join(t, separator)
E:\a327ex\Anchor\framework\anchor\array.lua:330:  separator = separator or ''
E:\a327ex\Anchor\framework\anchor\array.lua-331-  local s = ''
E:\a327ex\Anchor\framework\anchor\array.lua-332-  for i = 1, #t do
E:\a327ex\Anchor\framework\anchor\array.lua-333-    s = s .. tostring(t[i])
E:\a327ex\Anchor\framework\anchor\array.lua:334:    if i < #t then s = s .. separator end
E:\a327ex\Anchor\framework\anchor\array.lua-335-  end
E:\a327ex\Anchor\framework\anchor\array.lua-336-  return s
E:\a327ex\Anchor\framework\anchor\array.lua-337-end

E:\a327ex\Anchor\docs\FRAMEWORK_API_QUICK.md-629-### Transformation
E:\a327ex\Anchor\docs\FRAMEWORK_API_QUICK.md-630-```
E:\a327ex\Anchor\docs\FRAMEWORK_API_QUICK.md-631-array.flatten(t, level?) -> [element, ...]
E:\a327ex\Anchor\docs\FRAMEWORK_API_QUICK.md:632:array.join(t, separator?) -> string
E:\a327ex\Anchor\docs\FRAMEWORK_API_QUICK.md-633-```
E:\a327ex\Anchor\docs\FRAMEWORK_API_QUICK.md-634-
E:\a327ex\Anchor\docs\FRAMEWORK_API_QUICK.md-635-### Table Utilities

[
  {
    "type": "text",
    "text": "Excellent! Now I have a complete picture. Let me compile my final report:\n\n## Steering Behavior Implementation Summary\n\nI found comprehensive steering behavior implementations across the reference projects. Here's the complete breakdown:\n\n### Primary Implementation Location\n\n**E:\\a327ex\\Orblike\\reference\\SNKRX\\engine\\game\\steering.lua** (317 lines total)\n\nThis is the main steering implementation file that uses patterns from \"Programming Game AI by Example\" (chapter 3). The file implements steering as a Physics mixin.\n\n---\n\n## Core Steering Functions\n\n### 1. Initialization: `set_as_steerable()` (Lines 6-32)\n```lua\nfunction Physics:set_as_steerable(max_v, max_f, max_turn_rate, turn_multiplier)\n  self.steerable = true\n  self.steering_enabled = true\n  self.heading = Vector()\n  self.side = Vector()\n  self.steering_force = Vector()\n  self.applied_force = Vector()\n  self.applied_impulse = Vector()\n  self.mass = 1\n  self.max_v = max_v or 100\n  self.max_f = max_f or 2000\n  self.max_turn_rate = max_turn_rate or 2*math.pi\n  self.turn_multiplier = turn_multiplier or 2\n  self.seek_f = Vector()\n  self.flee_f = Vector()\n  self.pursuit_f = Vector()\n  self.evade_f = Vector()\n  self.wander_f = Vector()\n  local r = random:float(0, 2*math.pi)\n  self.wander_target = Vector(40*math.cos(r), 40*math.sin(r))\n  self.path_follow_f = Vector()\n  self.separation_f = Vector()\n  self.alignment_f = Vector()\n  self.cohesion_f = Vector()\n  self.apply_force_f = Vector()\n  self.apply_impulse_f = Vector()\nend\n```\n\nKey parameters:\n- `max_v`: Maximum velocity (default 100)\n- `max_f`: Maximum force (default 2000)\n- `max_turn_rate`: Maximum turning rate (default 2\u03c0)\n- `turn_multiplier`: Multiplier for steering response (default 2)\n\n---\n\n### 2. Update Loop: `steering_update()` (Lines 35-51)\n```lua\nfunction Physics:steering_update(dt)\n  if self.steerable and self.steering_enabled then\n    local steering_force = self:calculate_steering_force(dt):div(self.mass)\n    local applied_force = self:calculate_applied_force(dt):div(self.mass)\n    local applied_impulse = self:calculate_applied_impulse(dt):div(self.mass)\n    self:apply_force(steering_force.x + applied_force.x, steering_force.y + applied_force.y)\n    local vx, vy = self:get_velocity()\n    local v = Vector(vx, vy):truncate(self.max_v)\n    self:set_velocity(v.x + applied_impulse.x, v.y + applied_impulse.y)\n    if v:length_squared() > 0.00001 then\n      self.heading = v:clone():normalize()\n      self.side = self.heading:perpendicular()\n    end\n    self.apply_force_f:set(0, 0)\n  end\nend\n```\n\nFlow:\n1. Calculate accumulated steering forces\n2. Apply forces to physics body\n3. Truncate velocity to max_v\n4. Update heading/side vectors based on current velocity\n\n---\n\n### 3. Force Accumulation: `calculate_steering_force()` (Lines 54-75)\n```lua\nfunction Physics:calculate_steering_force(dt)\n  self.steering_force:set(0, 0)\n  if self.seeking then self.steering_force:add(self.seek_f) end\n  if self.fleeing then self.steering_force:add(self.flee_f) end\n  if self.pursuing then self.steering_force:add(self.pursuit_f) end\n  if self.evading then self.steering_force:add(self.evade_f) end\n  if self.wandering then self.steering_force:add(self.wander_f) end\n  if self.path_following then self.steering_force:add(self.path_follow_f) end\n  if self.separating then self.steering_force:add(self.separation_f) end\n  if self.aligning then self.steering_force:add(self.alignment_f) end\n  if self.cohesing then self.steering_force:add(self.cohesion_f) end\n  self.seeking = false\n  self.fleeing = false\n  self.pursuing = false\n  self.evading = false\n  self.wandering = false\n  self.path_following = false\n  self.separating = false\n  self.aligning = false\n  self.cohesing = false\n  return self.steering_force:truncate(self.max_f)\nend\n```\n\nBehaviors supported (flags reset each frame):\n- seeking, fleeing, pursuing, evading\n- wandering\n- path_following\n- separating, aligning, cohesing (flocking behaviors)\n\n---\n\n### 4. Seek/Arrive: `seek_point()` (Lines 131-142)\n\n**Location:** E:\\a327ex\\Orblike\\reference\\SNKRX\\engine\\game\\steering.lua\n\n```lua\n-- Arrive steering behavior\n-- Makes this object accelerate towards a destination, slowing down the closer it gets to it\n-- deceleration - how fast the object will decelerate once it gets closer to the target, higher values will make the deceleration more abrupt, do not make this value 0\n-- weight - how much the force of this behavior affects this object compared to others\n-- self:seek_point(player.x, player.y)\nfunction Physics:seek_point(x, y, deceleration, weight)\n  self.seeking = true\n  local tx, ty = x - self.x, y - self.y\n  local d = math.length(tx, ty)\n  if d > 0 then\n    local v = d/((deceleration or 1)*0.08)\n    v = math.min(v, self.max_v)\n    local dvx, dvy = v*tx/d, v*ty/d\n    local vx, vy = self:get_velocity()\n    self.seek_f:set((dvx - vx)*self.turn_multiplier*(weight or 1), (dvy - vy)*self.turn_multiplier*(weight or 1))\n  else self.seek_f:set(0, 0) end\nend\n```\n\n**Key details:**\n- Implements ARRIVE behavior (not pure seek)\n- Deceleration logic: `v = d / ((deceleration or 1) * 0.08)`\n- Closer to target = slower desired velocity\n- Force = (desired_velocity - current_velocity) * turn_multiplier * weight\n- Deceleration parameter controls slowdown rate\n\n---\n\n### 5. Seek Object/Mouse (Lines 147-157)\n\n```lua\n-- Same as self:seek_point but for objects instead.\n-- self:seek_object(player)\nfunction Physics:seek_object(object, deceleration, weight)\n  return self:seek_point(object.x, object.y, deceleration, weight)\nend\n\n-- Same as self:seek_point and self:seek_object but for the mouse instead.\n-- self:seek_mouse()\nfunction Physics:seek_mouse(deceleration, weight)\n  local mx, my = self.group.camera:get_mouse_position()\n  return self:seek_point(mx, my, deceleration, weight)\nend\n```\n\nConvenience wrappers around seek_point.\n\n---\n\n### 6. Separation: `steering_separate()` (Lines 164-178)\n\n```lua\n-- Separation steering behavior\n-- Keeps this object separated from other objects of specific classes according to the radius passed in\n-- What this function does is simply look at all nearby objects and apply forces to this object such that it remains separated from them\n-- self:separate(40, {Enemy}) -> when this is called every frame, this applies forces to this object to keep it separated from other Enemy instances by 40 units at all times\nfunction Physics:steering_separate(rs, class_avoid_list, weight)\n  self.separating = true\n  local fx, fy = 0, 0\n  local objects = table.flatten(table.foreachn(class_avoid_list, function(v) return self.group:get_objects_by_class(v) end), true)\n  for _, object in ipairs(objects) do\n    if object.id ~= self.id and math.distance(object.x, object.y, self.x, self.y) < 2*rs then\n      local tx, ty = self.x - object.x, self.y - object.y\n      local nx, ny = math.normalize(tx, ty)\n      local l = math.length(nx, ny)\n      fx = fx + rs*(nx/l)\n      fy = fy + rs*(ny/l)\n    end\n  end\n  self.separation_f:set(fx*(weight or 1), fy*(weight or 1))\nend\n```\n\n**Key details:**\n- Radius-based separation\n- Only considers nearby objects (within 2*rs distance)\n- Accumulates normalized displacement vectors\n- Scales by separation radius: `rs * (normalized_direction / distance)`\n- Weight parameter scales final force\n\n---\n\n### 7. Wander: `wander()` (Lines 188-196)\n\n```lua\n-- Wander steering behavior\n-- Makes the object move in a jittery manner, adding some randomness to its movement while keeping the overall direction\n-- What this function does is project a circle in front of the entity and then choose a point randomly inside that circle for the entity to move towards and it does that every frame\n-- rs - the radius of the circle\n-- distance - the distance of the circle from this object, the further away the smoother the changes to movement will be\n-- jitter - the amount of jitter to the movement, the higher it is the more abrupt the changes will be\n-- self:wander(50, 100, 20)\nfunction Physics:wander(rs, distance, jitter, weight)\n  self.wandering = true\n  self.wander_target:add(random:float(-1, 1)*(jitter or 20), random:float(-1, 1)*(jitter or 20))\n  self.wander_target:normalize()\n  self.wander_target:mul(rs or 40)\n  local target_local = self.wander_target:clone():add(distance or 40, 0)\n  local target_world = steering.point_to_world_space(target_local, self.heading, self.side, Vector(self.x, self.y))\n  self.wander_f:set((target_world.x - self.x)*(weight or 1), (target_world.y - self.y)*(weight or 1))\nend\n```\n\n**Algorithm:**\n1. Maintains persistent `wander_target` vector initialized to random position on circle\n2. Each frame: add random jitter, normalize, scale to radius\n3. Project target to distance ahead in local space\n4. Transform to world space using entity's heading/side vectors\n5. Seek toward transformed target position\n\nParameters:\n- `rs`: Radius of wander circle (default 40)\n- `distance`: Distance ahead to project circle (default 40, larger = smoother)\n- `jitter`: Random deviation amount each frame (default 20, larger = more chaotic)\n\n---\n\n### 8. Applied Forces: `apply_steering_force()` and `apply_steering_impulse()` (Lines 95-123)\n\n```lua\n-- Applies force f to the object at the given angle r for duration s\n-- This plays along with steering behaviors, whereas the apply_force function simply applies it directly to the body and doesn't work when steering behaviors are enabled\n-- self:apply_steering_force(100, math.pi/4)\nfunction Physics:apply_steering_force(f, r, s)\n  self.applying_force = true\n  self.apply_force_f:set(f*math.cos(r), f*math.sin(r))\n  if s then\n    self.t:after((s or 0.01)/2, function()\n      self.t:tween((s or 0.01)/2, self.apply_force_f, {x = 0, y = 0}, math.linear, function()\n        self.applying_force = false\n        self.apply_force_f:set(0, 0)\n      end, 'apply_steering_force_2')\n    end, 'apply_steering_force_1')\n  end\nend\n\n-- Applies impulse f to the object at the given angle r for duration s\n-- This plays along with steering behaviors, whereas the apply_impulse function simply applies it directly to the body and doesn't work when steering behaviors are enabled\n-- self:apply_steering_impulse(100, math.pi/4, 0.5)\nfunction Physics:apply_steering_impulse(f, r, s)\n  self.applying_impulse = true\n  self.apply_impulse_f:set(f*math.cos(r), f*math.sin(r))\n  if s then\n    self.t:after((s or 0.01)/2, function()\n      self.t:tween((s or 0.01)/2, self.apply_impulse_f, {x = 0, y = 0}, math.linear, function()\n        self.applying_impulse = false\n        self.apply_impulse_f:set(0, 0)\n      end, 'apply_steering_impulse_2')\n    end, 'apply_steering_impulse_1')\n  end\nend\n```\n\nThese allow applying additional directional forces/impulses that taper off over duration.\n\n---\n\n## Coordinate Space Transformation (Lines 281-317)\n\nSupporting functions for wander behavior's local-to-world space conversion:\n\n```lua\nsteering = {}\nfunction steering.point_to_world_space(point, heading, side, position)\n  local trans_point = Vector(point.x, point.y)\n  local mat_transform = C2DMatrix()\n  mat_transform:rotate(heading, side)\n  mat_transform:translate(position.x, position.y)\n  mat_transform:transform_vector(trans_point)\n  return trans_point\nend\n\nfunction steering.point_to_local_space(point, heading, side, position)\n  local trans_point = Vector(point.x, point.y)\n  local mat_transform = C2DMatrix()\n  local tx, ty = -position:dot(heading), -position:dot(side)\n  mat_transform._11 = heading.x; mat_transform._12 = side.x;\n  mat_transform._21 = heading.y; mat_transform._22 = side.y;\n  mat_transform._31 = tx;        mat_transform._32 = ty;\n  mat_transform:transform_vector(trans_point)\n  return trans_point\nend\n\nfunction steering.vector_to_world_space(v, heading, side)\n  local trans_v = Vector(v.x, v.y)\n  local mat_transform = C2DMatrix()\n  mat_transform:rotate(heading, side)\n  mat_transform:transform_vector(trans_v)\n  return trans_v\nend\n\nfunction steering.rotate_vector_around_origin(v, r)\n  local mat = C2DMatrix()\n  mat:rotater(r)\n  mat:transform_vector(v)\n  return v\nend\n```\n\nAlso defines C2DMatrix class (lines 202-277) for 2D affine transformations.\n\n---\n\n## Real-World Usage Examples\n\n### From E:\\a327ex\\Orblike\\reference\\SNKRX\\enemies.lua (Lines 325-335)\n\n```lua\nself:seek_point(x, y)\nself:wander(10, 250, 3)\n-- ...\nself:seek_point(target.x, target.y)\nself:wander(50, 100, 20)\n-- ...\nself:steering_separate(16, main.current.enemies)\nself:rotate_towards_velocity(0.5)\n```\n\n### From E:\\a327ex\\Orblike\\reference\\SNKRX\\player.lua (Lines 3628-3638)\n\n```lua\nif not self.target then\n  self:seek_point(gw/2, gh/2)\n  self:wander(50, 200, 50)\n  self:rotate_towards_velocity(1)\n  self:steering_separate(32, {Seeker})\nelse\n  self:seek_point(self.target.x, self.target.y)\n  self:wander(50, 200, 50)\n  self:rotate_towards_velocity(1)\n  self:steering_separate(32, {Seeker})\nend\n```\n\nPattern: Combine seek + wander + separation in update loop each frame.\n\n---\n\n## Alternative Implementations\n\n**E:\\a327ex\\Orblike\\reference\\BUILDRX2\\engine\\game\\steering.lua** - Older version with minimal matrix/coordinate code, no Physics mixin functions (just C2DMatrix and helper functions).\n\n**E:\\a327ex\\Orblike\\reference\\112020\\engine\\game\\steering.lua** - Similar structure to BUILDRX2, stripped down version.\n\nThe SNKRX version is the most complete implementation with full Physics mixin integration.\n\n---\n\n## Key Architectural Patterns\n\n1. **Steering as Mixin**: Steering functions are part of the Physics class, not separate\n2. **Per-Frame Flags**: Behavior flags (seeking, wandering, etc.) are set each frame and reset after force calculation\n3. **Force Accumulation**: Multiple behaviors can be active simultaneously; their forces are summed\n4. **Max Force Clamping**: Total steering force is clamped to `max_f` to prevent infinite acceleration\n5. **Mass-Based Scaling**: Forces are divided by mass (default 1) during update\n6. **Velocity-Based Heading**: Entity's heading/side vectors update based on actual velocity direction\n7. **Local Space Operations**: Wander uses local space relative to entity heading, transformed to world space"
  },
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    "text": "agentId: a84f15937b82a80b7 (for resuming to continue this agent's work if needed)\n<usage>total_tokens: 43699\ntool_uses: 32\nduration_ms: 144467</usage>"
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[
  {
    "type": "text",
    "text": "I can see the current emoji-ball-battles collider.lua doesn't have steering implementations. Let me now provide a comprehensive summary of all the steering behavior implementations I found:\n\n## Summary of Steering Behavior Implementations\n\nBased on my thorough search of the emoji-ball-battles project and its reference implementations, here are all the steering behavior implementations found:\n\n### Current Project (emoji-ball-battles)\n**File: E:\\a327ex\\emoji-ball-battles\\anchor\\collider.lua**\n- Lines 1-195: Basic collider wrapper for Box2D with force/impulse application, but **no steering behaviors implemented yet**\n- Available methods: `apply_force()`, `apply_impulse()`, `get_velocity()`, `set_velocity()`\n\n---\n\n### Reference Implementations\n\n#### 1. Super Emoji Box (Lun Engine)\n**File: E:\\a327ex\\emoji-ball-battles\\reference\\super emoji box\\lun\\collider.lua**\nLines 348-446:\n- `collider:collider_seek(x, y, max_speed, max_force)` (lines 353-361)\n  - Calculates steering force toward target position\n  - Normalizes direction, applies max_speed, subtracts current velocity, limits force\n  \n- `collider:collider_arrive(x, y, rs, max_speed, max_force)` (lines 369-382)\n  - Seeks toward target but decelerates as it approaches (radius rs)\n  - Uses `math.remap()` to scale speed based on distance\n  \n- `collider:collider_wander(d, rs, jitter, max_speed, max_force)` (lines 391-398)\n  - Random wandering behavior\n  - Maintains `wander_r` angle state, adds random jitter each frame\n  - Projects point ahead of velocity, adds random point on circle around it, seeks to it\n  \n- `collider:collider_separate(rs, others, max_speed, max_force)` (lines 407-428)\n  - Flocking separation: moves away from nearby objects\n  - Averages repulsion vectors from all neighbors within radius\n  - Applies force away from crowd\n\n#### 2. Super Emoji Pop (Lun Engine)\n**File: E:\\a327ex\\emoji-ball-battles\\reference\\super emoji pop\\lun\\collider.lua**\nLines 348-446: **Identical implementations** to Super Emoji Box\n\n#### 3. Super Emoji Invaders (Modern Engine)\n**File: E:\\a327ex\\emoji-ball-battles\\reference\\super-emoji-invaders\\src\\engine\\mixins\\collider.lua**\nLines 349-404:\n- `collider:set_as_steerable(max_v, max_f)` (lines 350-357)\n  - Initializes steerable state with vec2 for velocity (v) and acceleration (a)\n  - Sets max velocity and max force parameters\n  \n- `collider:seek(x, y)` (lines 359-366)\n  - Simpler implementation: normalizes direction, scales by max_v, subtracts velocity, limits force\n  \n- `collider:arrive(x, y, r)` (lines 368-381)\n  - Similar to seek with deceleration radius\n  \n- `collider:wander(d, rs, rr)` (lines 383-390)\n  - `d`: distance ahead for wander point\n  - `rs`: radius of wander circle\n  - `rr`: random jitter amount\n  \n- `collider:separate(rs, others)` (lines 392-404)\n  - Separates from neighbors, applies force limit\n\n#### 4. Super Emoji Pairs (Modern Engine)\n**File: E:\\a327ex\\emoji-ball-battles\\reference\\super-emoji-pairs\\src\\engine\\mixins\\collider.lua**\nLines 349-404: **Identical implementations** to Super Emoji Invaders\n\n#### 5. Emoji Merge (Newer Anchor Framework)\n**File: E:\\a327ex\\emoji-ball-battles\\reference\\emoji-merge-main\\anchor\\collider.lua**\nLines 448-540: **Extended implementations**\n- `collider:collider_seek()` (lines 451-459)\n- `collider:collider_arrive()` (lines 464-477)\n- `collider:collider_wander()` (lines 482-489)\n- `collider:collider_separate()` (lines 494-515)\n- `collider:collider_align()` (lines 520-540)\n  - New: Flocking alignment behavior - aligns velocity with nearby neighbors\n- `collider:collider_cohesion()` (lines 545+)\n  - New: Flocking cohesion behavior - moves toward center of nearby neighbors\n\n#### 6. Super Emoji Box (Game Objects)\n**File: E:\\a327ex\\emoji-ball-battles\\reference\\super-emoji-box\\engine\\collider.lua**\nLines 551-608:\n- `collider:update_steering(dt)` (lines 551-557)\n  - Updates velocity from acceleration, limits velocity, resets acceleration\n  \n- `collider:seek(x, y)` (lines 560-567)\n- `collider:arrive(x, y, r)` (lines 570-583)\n- `collider:wander(d, rs, rr)` (lines 586-593)\n- `collider:separate(rs, others)` (lines 596-608)\n\n#### 7. Super Emoji Invaders (Main Game Usage)\n**File: E:\\a327ex\\emoji-ball-battles\\reference\\super-emoji-invaders\\src\\main.lua**\nLines 760-827: **Example usage of steering**\n```lua\n-- Alien enemy update (lines 762-767):\nlocal ax, ay = self:arrive(player.x, player.y, 100)\nlocal bx, by = self:do_not_go_below(game.h/2 - 40)\nlocal rx, ry = self:separate(50, game.states.arena.enemies.objects)\nlocal sx, sy = self:separate(150, game.states.arena.players.objects)\nlocal wx, wy = self:wander(25, 100, 20)\nself:apply_force(math.limit(ax+8*bx+rx+sx+wx, ay+8*by+ry+sy+wy, self.max_f))\n```\n- Combines multiple steering behaviors (arrive, boundary constraint, separation, wander)\n- Weights them differently (boundary constraint weighted 8x, wander weighted 1x)\n\n#### 8. Super Emoji Box (Game Objects - Main)\n**File: E:\\a327ex\\emoji-ball-battles\\reference\\super-emoji-box\\main.lua**\nLine 633:\n```lua\nlocal wx, wy = self:collider_wander(25, 100, 20, self.max_v)\n```\n\n#### 9. Current Project (Enemy Implementation)\n**File: E:\\a327ex\\emoji-ball-battles\\reference\\super-emoji-box\\enemies.lua**\nLines 1-96:\n```lua\n-- Line 43 (enemy:update):\nself:apply_force(self:seek(level.player.x, level.player.y))\n```\n- Uses `seek()` steering to chase player\n- Enemy initialized with `self:set_as_steerable(75)` (line 28)\n\n---\n\n### Key Patterns\n\n1. **Force Accumulation Model**: All implementations use an accumulator pattern where forces are calculated separately and summed\n2. **Velocity Limiting**: Forces are always limited to `max_force` to prevent unbounded acceleration\n3. **Vector Math**: Uses `math.normalize()`, `math.limit()`, `math.length()`, `math.remap()`, `math.distance()`\n4. **State Maintenance**: `wander_r` angle persists frame-to-frame for smooth wandering\n5. **Composability**: Multiple steering forces can be combined with weights for complex behaviors\n\n---\n\n### Available Steering Behaviors\n\n| Behavior | Purpose | Parameters |\n|----------|---------|-----------|\n| **seek** | Move toward target | target_x, target_y |\n| **arrive** | Move toward target, decelerate at end | target_x, target_y, stop_radius |\n| **wander** | Random movement | distance_ahead, circle_radius, jitter |\n| **separate** | Avoid nearby objects | separation_radius, neighbors_list |\n| **align** | Match velocity with neighbors (flocking) | neighborhood_radius, neighbors_list |\n| **cohesion** | Move toward center of neighbors (flocking) | neighborhood_radius, neighbors_list |\n| **do_not_go_below** | Boundary constraint | y_threshold |"
  },
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    "text": "agentId: a6f404148e8254e4f (for resuming to continue this agent's work if needed)\n<usage>total_tokens: 50288\ntool_uses: 22\nduration_ms: 60999</usage>"
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   448→-- Seeking steering behavior.
   449→-- Returns the force/acceleration to be applied to the object.
   450→-- sx, sy = self:collider_seek(player.x, player.y, 200, 1000)
   451→function collider:collider_seek(x, y, max_speed, max_force)
   452→  local dx, dy = x - self.x, y - self.y
   453→  dx, dy = math.normalize(dx, dy)
   454→  dx, dy = dx*max_speed, dy*max_speed
   455→  local vx, vy = self:collider_get_velocity()
   456→  dx, dy = dx - vx, dy - vy
   457→  dx, dy = math.limit(dx, dy, max_force or 1000)
   458→  return dx, dy
   459→end
   460→
   461→-- Arrive steering behavior, stops accelerating when within radius rs.
   462→-- Returns the force/acceleration to be applied to the object.
   463→-- ax, ay = self:collider_arrive(player.x, player.y, 50, 200, 1000)
   464→function collider:collider_arrive(x, y, rs, max_speed, max_force)
   465→  local dx, dy = x - self.x, y - self.y
   466→  local d = math.length(dx, dy)
   467→  dx, dy = math.normalize(dx, dy)
   468→  if d < rs then
   469→    dx, dy = dx*math.remap(d, 0, rs, 0, max_speed), dy*math.remap(d, 0, rs, 0, max_speed)
   470→  else
   471→    dx, dy = dx*max_speed, dy*max_speed
   472→  end
   473→  local vx, vy = self:collider_get_velocity()
   474→  dx, dy = dx - vx, dy - vy
   475→  dx, dy = math.limit(dx, dy, max_force or 1000)
   476→  return dx, dy
   477→end
... [70 more lines]

E:\a327ex\Orblike\anchor\collider.lua

   545→function collider:collider_cohesion(rs, others, max_speed, max_force)
   546→  local dx, dy, number_of_objects = 0, 0, 0
   547→  for _, object in ipairs(others) do
   548→    if object.id ~= self.id and math.distance(object.x, object.y, self.x, self.y) < rs then
   549→      dx, dy = dx + object.x, dy + object.y
   550→      number_of_objects = number_of_objects + 1
   551→    end
   552→  end
   553→  if number_of_objects > 0 then
   554→    dx, dy = dx/number_of_objects, dy/number_of_objects
   555→    return self:collider_seek(dx, dy, max_speed, max_force)
   556→  else
   557→    return 0, 0
   558→  end
   559→end
   560→
   561→-- Prevents the object from going below position y, it will be pushed out of it.
   562→-- Returns the force/acceleration to be applied to the object.
   563→-- dx, dy = self:collider_do_not_go_below(game.h/2)
   564→function collider:collider_do_not_go_below(y)
   565→  local dx, dy = 0, 0
   566→  if self.y > y then
   567→    local ty = self.y - y
   568→    local nx, ny = math.normalize(0, ty)
   569→    local l = math.length(nx, ny)
   570→    dx, dy = 0, -ty*(ny/l)
   571→  end
   572→  return dx, dy
   573→end
   574→
... [2 more lines]

     1→require('anchor.object')
     2→
     3→--[[
     4→  Collider class - wraps a Box2D physics body.
     5→
     6→  A child object added to game objects. Dies when parent dies.
     7→  Name defaults to 'collider' so parent accesses it as self.collider.
     8→
     9→  Usage:
    10→    self:add(collider('player', 'dynamic', 'circle', 16))
    11→    self:add(collider('wall', 'static', 'box', 64, 32))
    12→
    13→  Multiple colliders on one object:
    14→    hitbox = collider('player_hitbox', 'dynamic', 'circle', 12)
    15→    hitbox.name = 'hitbox'
    16→    self:add(hitbox)
    17→]]
    18→-- Unique ID counter for colliders
    19→collider_next_id = 1
    20→
    21→collider = object:extend()
    22→
    23→function collider:new(tag, body_type, shape_type, ...)
    24→  object.new(self, 'collider')
    25→  self.tag = tag
    26→  self.body_type = body_type
    27→  self.shape_type = shape_type
    28→  self.body = physics_create_body(self.body_type, 0, 0)
    29→
    30→  -- Add initial shape based on shape_type
... [165 more lines]

E:\a327ex\Orblike\anchor\math.lua:203:function math.length(x, y)
E:\a327ex\Orblike\anchor\math.lua:250:function math.remap(value, old_min, old_max, new_min, new_max)
E:\a327ex\Orblike\anchor\math.lua:304:function math.distance(x1, y1, x2, y2)
E:\a327ex\Orblike\anchor\math.lua:323:function math.normalize(x, y)
E:\a327ex\Orblike\anchor\math.lua:437:function math.limit(x, y, max)

   190→  Polygon: vertices {x1,y1,x2,y2,...}, count, radius
   191→  Capsule: x1, y1, x2, y2, radius
   192→  Segment: x1, y1, x2, y2
   193→]]
   194→function collider:get_shapes_geometry() return physics_get_shapes_geometry(self.body) end
   195→

The file E:\a327ex\Orblike\anchor\collider.lua has been updated successfully.

The file E:\a327ex\Orblike\main.lua has been updated successfully.

No matches found

25-  self.wander_target = Vector(40*math.cos(r), 40*math.sin(r))
26-  self.path_follow_f = Vector()
27-  self.separation_f = Vector()
28-  self.alignment_f = Vector()
29-  self.cohesion_f = Vector()
30:  self.apply_force_f = Vector()
31-  self.apply_impulse_f = Vector()
32-end
33-
34-
35:function Physics:steering_update(dt)
36-  if self.steerable and self.steering_enabled then
37-    local steering_force = self:calculate_steering_force(dt):div(self.mass)
38-    local applied_force = self:calculate_applied_force(dt):div(self.mass)
39-    local applied_impulse = self:calculate_applied_impulse(dt):div(self.mass)
40:    self:apply_force(steering_force.x + applied_force.x, steering_force.y + applied_force.y)
41-    local vx, vy = self:get_velocity()
42-    local v = Vector(vx, vy):truncate(self.max_v)
43:    self:set_velocity(v.x + applied_impulse.x, v.y + applied_impulse.y)
44-    if v:length_squared() > 0.00001 then
45-      self.heading = v:clone():normalize()
46-      self.side = self.heading:perpendicular()
47-    end
48:    self.apply_force_f:set(0, 0)
49-    -- self.apply_impulse_f:set(0, 0)
50-  end
51-end
52-
53-
--
... [32 more lines]

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[
  {
    "type": "text",
    "text": "The document is open in NeoVim with MarkdownPreview. Here's a summary of the key findings:\n\n---\n\n## Key Findings\n\n### 1. Wander and dt -- The Core Issue\n\n**Three approaches exist, with different dt handling:**\n\n**Buckland (industry standard):** Scales jitter displacement linearly by dt: `JitterThisTimeSlice = m_dWanderJitter * TimeElapsed()`. This is the most widely copied approach. It works by adding random displacement to a persistent target point on a circle, then normalizing back onto the circle. The random displacement magnitude is proportional to dt.\n\n**gdx-ai (angle-based):** Scales angular displacement by dt: `wanderOrientation += randomTriangular(wanderRate * delta)`. Cleaner because it works in angle space -- no need to project back onto a circle. `wanderRate` is in radians/second.\n\n**Common tutorials (BROKEN):** The Envato Tuts+ flash tutorial and many copies of it do `wanderAngle += random() * ANGLE_CHANGE - ANGLE_CHANGE * 0.5` with **no dt scaling at all**. This is frame-rate dependent. Many implementations in the wild have this bug.\n\n**The pedantic math:** For a truly frame-rate-independent random walk, the step size should scale with `sqrt(dt)`, not `dt`. Linear dt scaling means lower framerates produce slightly more variance per second. But in practice, Buckland's linear scaling is the accepted standard and the difference is negligible, especially with fixed timesteps. The real bug is forgetting dt entirely.\n\n### 2. Complete Behavior List\n\nReynolds' original set plus Buckland's and gdx-ai's additions give about 25 distinct behaviors. The document has the full table. The core ones you listed (seek, flee, arrive, pursue, evade, wander, separation, alignment, cohesion) are the most important. Others worth knowing: **obstacle avoidance**, **wall avoidance**, **path following**, **hide**, **interpose**, **offset pursuit**, **leader following**, **flow field following**, **containment**, and **unaligned collision avoidance**.\n\n### 3. Force Application\n\nThe `desired_velocity - current_velocity` pattern is correct and universal. The result is a **steering force** (conceptually an acceleration times mass). How you apply it depends on your physics setup:\n\n- **Reynolds model (no physics engine):** Treat it as acceleration: `velocity += (steering/mass) * dt`\n- **Box2D with apply_force:** Convert to force: `force = mass * steering / dt` (because F = m*a = m*dv/dt)\n- **Box2D with apply_impulse:** Convert to impulse: `impulse = mass * steering` (impulse = m*dv, no dt needed)\n- **Direct velocity setting:** Just add `(steering/mass) * dt` to velocity and clamp to max_speed\n\nThe critical thing is to **truncate the steering force to max_force before applying it**. This truncation is what gives agents their turning radius and prevents instant velocity changes.\n\n### 4. Force Combination\n\nBuckland's **prioritized accumulation** is the most practical approach: higher-priority behaviors (obstacle avoidance, separation) get first claim on the force budget, lower-priority ones (wander, seek) use whatever's left. His `AccumulateForce` function caps the total at `max_force` and returns false when the budget is exhausted.\n\nThe full document is at `E:/a327ex/Anchor/reference/steering-behaviors-research.md` with all code examples, the complete behavior list, the dt analysis, and all source links."
  },
  {
    "type": "text",
    "text": "agentId: a231b0414d5b1efdd (for resuming to continue this agent's work if needed)\n<usage>total_tokens: 56028\ntool_uses: 44\nduration_ms: 434827</usage>"
  }
]

     1→# Steering Behaviors Research
     2→
     3→Comprehensive research on Craig Reynolds' steering behaviors, with focus on wander/dt handling, force application with physics engines, and the "desired minus current" pattern.
     4→
     5→---
     6→
     7→## 1. The Complete List of Standard Steering Behaviors
     8→
     9→### Craig Reynolds' Original Set (GDC 1999)
    10→
    11→**Individual behaviors:**
    12→
    13→| Behavior | Description |
    14→|----------|-------------|
    15→| **Seek** | Steer toward a target position |
    16→| **Flee** | Steer away from a target position |
    17→| **Arrive** | Seek with deceleration near target |
    18→| **Pursuit** | Seek toward predicted future position of moving target |
    19→| **Evasion** | Flee from predicted future position of pursuer |
    20→| **Offset Pursuit** | Maintain offset from a moving target (formations) |
    21→| **Wander** | Coherent random steering via constrained displacement on a sphere/circle |
    22→| **Path Following** | Stay within a radius of a path spine |
    23→| **Wall Following** | Maintain offset from a wall surface |
    24→| **Containment** | Stay within a bounding region |
    25→| **Flow Field Following** | Align velocity with a sampled vector field |
    26→| **Obstacle Avoidance** | Detect and steer around obstacles using a forward cylinder |
    27→| **Unaligned Collision Avoidance** | Predict and avoid collisions with other moving agents |
    28→
    29→**Group behaviors (require neighbor queries):**
    30→
... [722 more lines]

   196→-- Steering behaviors
   197→-- Each returns (fx, fy) force vectors that can be combined and applied.
   198→-- Usage:
   199→--   local sx, sy = self.collider:steering_seek(target_x, target_y, max_speed, max_force)
   200→--   local wx, wy = self.collider:steering_wander(50, 50, 20, max_speed, max_force)
   201→--   local rx, ry = self.collider:steering_separate(16, enemies, max_speed, max_force)
   202→--   self.collider:apply_force(math.limit(sx + wx + rx, sy + wy + ry, max_force))
   203→
   204→-- Seek: steer toward target at max_speed
   205→function collider:steering_seek(x, y, max_speed, max_force)
   206→  local dx, dy = x - self.parent.x, y - self.parent.y
   207→  dx, dy = math.normalize(dx, dy)
   208→  dx, dy = dx*max_speed, dy*max_speed
   209→  local vx, vy = self:get_velocity()
   210→  dx, dy = dx - vx, dy - vy
   211→  dx, dy = math.limit(dx, dy, max_force or 1000)
   212→  return dx, dy
   213→end
   214→
   215→-- Arrive: steer toward target, decelerate within radius rs
   216→function collider:steering_arrive(x, y, rs, max_speed, max_force)
   217→  local dx, dy = x - self.parent.x, y - self.parent.y
   218→  local d = math.length(dx, dy)
   219→  dx, dy = math.normalize(dx, dy)
   220→  if d < rs then
   221→    dx, dy = dx*math.remap(d, 0, rs, 0, max_speed), dy*math.remap(d, 0, rs, 0, max_speed)
   222→  else
   223→    dx, dy = dx*max_speed, dy*max_speed
   224→  end
   225→  local vx, vy = self:get_velocity()
... [79 more lines]

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   534→function seeker:update(dt)
   535→  if not self.visible then return end
   536→  self.x, self.y = self.collider:get_position()
   537→
   538→  if not self.pushed then
   539→    local sx, sy = self.collider:steering_seek(p1.x, p1.y, self.speed, 200)
   540→    local wx, wy = self.collider:steering_wander(25, 50, 20, dt, self.speed, 200)
   541→    self.collider:apply_force(sx + wx, sy + wy)
   542→    local vx, vy = self.collider:get_velocity()
   543→    vx, vy = math.limit(vx, vy, self.speed)
   544→    self.collider:set_velocity(vx, vy)
   545→
   546→    local angle_to_player = math.angle_to_point(self.x, self.y, p1.x, p1.y)
   547→    self.r = math.lerp_angle_dt(0.99, 0.1, dt, self.r, angle_to_player)
   548→  else
   549→    self.r = self.r + self.spin*dt
   550→  end
   551→
   552→  -- Draw
   553→  local s = self.spring.main.x
   554→  local c = self.flashing and fg_color() or red()
   555→  game:push(self.x, self.y, self.r, s, s)
   556→  game:rounded_rectangle(-self.w/2, -self.h/2, self.w, self.h, 3, c)
   557→  game:pop()
   558→
   559→  -- HP bar
   560→  if self.show_hp_bar then
   561→    local bar_y = self.y - self.h
   562→    local bar_w = self.w
   563→    local fill = math.remap(self.hp, 0, self.max_hp, 0, bar_w)

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No matches found

270:  return math.atan(y, x)
288:  return math.atan(y2 - y1, x2 - x1)
397:  return math.atan(ry, rx)

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   534→function seeker:update(dt)
   535→  if not self.visible then return end
   536→  self.x, self.y = self.collider:get_position()
   537→
   538→  if not self.pushed then
   539→    local sx, sy = self.collider:steering_seek(p1.x, p1.y, self.speed, 200)
   540→    local wx, wy = self.collider:steering_wander(25, 20, 10, dt, self.speed, 200)
   541→    local fx, fy = math.limit(sx + wx, sy + wy, 200)
   542→    self.collider:apply_force(fx, fy)
   543→    local vx, vy = self.collider:get_velocity()
   544→    vx, vy = math.limit(vx, vy, self.speed)
   545→    self.collider:set_velocity(vx, vy)
   546→
   547→    local vel_r = math.atan(vy, vx)
   548→    self.r = math.lerp_angle_dt(0.99, 0.1, dt, self.r, vel_r)
   549→  else
   550→    self.r = self.r + self.spin*dt
   551→  end
   552→
   553→  -- Draw
   554→  local s = self.spring.main.x
   555→  local c = self.flashing and fg_color() or red()
   556→  game:push(self.x, self.y, self.r, s, s)
   557→  game:rounded_rectangle(-self.w/2, -self.h/2, self.w, self.h, 3, c)
   558→  game:pop()
   559→
   560→  -- HP bar
   561→  if self.show_hp_bar then
   562→    local bar_y = self.y - self.h
   563→    local bar_w = self.w
... [5 more lines]

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   240→end
   241→
   242→-- Pursuit: seek predicted future position of a moving target
   243→-- target must have .x, .y and .collider with :get_velocity()
   244→function collider:steering_pursuit(target, max_speed, max_force)
   245→  local tx, ty = target.x - self.parent.x, target.y - self.parent.y
   246→  local d = math.length(tx, ty)
   247→  local tvx, tvy = target.collider:get_velocity()
   248→  local target_speed = math.length(tvx, tvy)
   249→  local look_ahead = d/(max_speed + target_speed + 0.001)
   250→  return self:steering_seek(target.x + tvx*look_ahead, target.y + tvy*look_ahead, max_speed, max_force)
   251→end
   252→
   253→-- Evade: flee predicted future position of a pursuer
   254→-- pursuer must have .x, .y and .collider with :get_velocity()

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   550→  else
   551→    self.r = self.r + self.spin*dt
   552→  end
   553→
   554→  -- Draw
   555→  local s = self.spring.main.x
   556→  local c = self.flashing and fg_color() or red()
   557→  game:push(self.x, self.y, self.r, s, s)
   558→  game:rounded_rectangle(-self.w/2, -self.h/2, self.w, self.h, 3, c)
   559→  game:pop()
   560→
   561→
   562→  -- HP bar
   563→  if self.show_hp_bar then
   564→    local bar_y = self.y - self.h
   565→    local bar_w = self.w
   566→    local fill = math.remap(self.hp, 0, self.max_hp, 0, bar_w)
   567→    game:line(self.x - bar_w*0.5, bar_y, self.x + bar_w*0.5, bar_y, 2, color(30, 30, 30)())
   568→    game:line(self.x - bar_w*0.5, bar_y, self.x - bar_w*0.5 + fill, bar_y, 2, red())
   569→  end
   570→end
   571→
   572→
   573→-- Effect: hit_circle (dark variant style)
   574→-- Filled circle that shrinks from initial radius to 0, starts white, optionally changes color

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   230→function player:attack()
   231→  local r = self.r
   232→  local spawn_x = self.x + 8*math.cos(r)
   233→  local spawn_y = self.y + 8*math.sin(r)
   234→
   235→  if self.current_ability == 'fireball' then
   236→    an:add(projectile(spawn_x, spawn_y, {ability = 'fireball', color = self.color, r = r, homing = true,
   237→      weaker_homing = debug_weaker_homing, stronger_homing = debug_stronger_homing,
   238→      progressively_increasing_homing = debug_progressively_increasing_homing, progressively_decreasing_homing = debug_progressively_decreasing_homing,
   239→      delayed_homing = debug_delayed_homing, very_delayed_homing = debug_very_delayed_homing,
   240→    }))
   241→    sfx('fireball_fire', volumes.fireball_fire)
   242→  end
   243→
   244→  an.camera.shake:push(r, 3)
   245→  self.spring:pull('shoot', 0.25)
   246→  self.flashing = true
   247→  self.timer:after(0.15, 'flash', function() self.flashing = false end)
   248→  an:add(hit_circle(spawn_x, spawn_y, {radius = 7, duration = 0.2}))
   249→  for i = 1, 2 do
   250→    an:add(hit_particle(spawn_x, spawn_y, {
   251→      angle = r + an.random:float(-math.pi/4, math.pi/4),
   252→      velocity = an.random:float(40, 200),
   253→      duration = an.random:float(0.3, 0.6),
   254→      w = an.random:choice({6, 8}),
   255→    }):change_color(0.6, self.color:clone()))
   256→  end
   257→end
   258→
   259→

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   695→    an:add(hit_circle(event.point_x, event.point_y, {radius = 6, duration = 0.15}))
   696→    for i = 1, an.random:int(1, 2) do
   697→      an:add(hit_particle(event.point_x, event.point_y, {velocity = an.random:float(60, 120), duration = an.random:float(0.1, 0.3)}))
   698→    end
   699→  end
   700→
   701→  -- Projectile-enemy hit
   702→  for _, event in ipairs(an:sensor_begin_events('projectile', 'enemy')) do
   703→    local proj, e = event.a, event.b
   704→    local r = math.angle_to_point(e.x, e.y, proj.x, proj.y)
   705→    local s = math.max(e.w, e.h)
   706→    local hx = e.x + s*0.75*math.cos(r)
   707→    local hy = e.y + s*0.75*math.sin(r)
   708→    proj:on_hit(e, hx, hy)
   709→  end
   710→end)
   711→
   712→-- Debug
   713→debug_weaker_homing = nil
   714→debug_stronger_homing = nil
   715→debug_progressively_increasing_homing = nil
   716→debug_progressively_decreasing_homing = nil
   717→debug_delayed_homing = nil
   718→debug_very_delayed_homing = nil
   719→an:action(function()
   720→  if an:key_is_pressed('k') then
   721→    an:add(seeker(p1.x + an.random:float(-80, 80), p1.y + an.random:float(-60, 60)))
   722→  end
   723→  if an:key_is_pressed('l') then
   724→    for i = 1, 5 do

   725→      an:add(seeker(p1.x + an.random:float(-120, 120), p1.y + an.random:float(-80, 80)))
   726→    end
   727→  end
   728→  if an:key_is_pressed('1') then debug_weaker_homing = not debug_weaker_homing; print('weaker_homing: ' .. tostring(debug_weaker_homing)) end
   729→  if an:key_is_pressed('2') then debug_stronger_homing = not debug_stronger_homing; print('stronger_homing: ' .. tostring(debug_stronger_homing)) end
   730→  if an:key_is_pressed('3') then debug_progressively_increasing_homing = not debug_progressively_increasing_homing; print('progressively_increasing_homing: ' .. tostring(debug_progressively_increasing_homing)) end
   731→  if an:key_is_pressed('4') then debug_progressively_decreasing_homing = not debug_progressively_decreasing_homing; print('progressively_decreasing_homing: ' .. tostring(debug_progressively_decreasing_homing)) end
   732→  if an:key_is_pressed('5') then debug_delayed_homing = not debug_delayed_homing; print('delayed_homing: ' .. tostring(debug_delayed_homing)) end
   733→  if an:key_is_pressed('6') then debug_very_delayed_homing = not debug_very_delayed_homing; print('very_delayed_homing: ' .. tostring(debug_very_delayed_homing)) end
   734→end)
   735→
   736→-- Draw background
   737→an:action(function()
   738→  bg:rectangle(0, 0, gw, gh, bg_color())
   739→
   740→  for i = 1, 32 do
   741→    for j = 1, 18 do
   742→      if j % 2 == 0 then
   743→        if i % 2 == 1 then
   744→          bg:rectangle((i - 1)*22, (j - 1)*22, 22, 22, bg_off())

The file E:\a327ex\Orblike\main.lua has been updated successfully.

   230→function player:attack()
   231→  local r = self.r
   232→  local spawn_x = self.x + 8*math.cos(r)
   233→  local spawn_y = self.y + 8*math.sin(r)
   234→
   235→  if self.current_ability == 'fireball' then
   236→    local shots = {{x = spawn_x, y = spawn_y, r = r}}
   237→
   238→    if debug_multi_shot_type == 'fan' and debug_multi_shot_count >= 2 then
   239→      local n = debug_multi_shot_count
   240→      local spread = math.pi/6 + (n - 2)*math.pi/12
   241→      shots = {}
   242→      for i = 1, n do
   243→        local t = (i - 1)/(n - 1)
   244→        table.insert(shots, {x = spawn_x, y = spawn_y, r = r + spread*(t - 0.5)})
   245→      end
   246→    elseif debug_multi_shot_type == 'volley' and debug_multi_shot_count >= 2 then
   247→      local n = debug_multi_shot_count
   248→      local total_offset = 4*(n - 1)
   249→      shots = {}
   250→      for i = 1, n do
   251→        local t = (i - 1)/(n - 1)
   252→        local offset = total_offset*(t - 0.5)
   253→        local px = r + math.pi/2
   254→        table.insert(shots, {x = spawn_x + offset*math.cos(px), y = spawn_y + offset*math.sin(px), r = r})
   255→      end
   256→    end
   257→
   258→    for _, shot in ipairs(shots) do
   259→      an:add(projectile(shot.x, shot.y, {ability = 'fireball', color = self.color, r = shot.r, homing = true,
... [10 more lines]

   268→  an.camera.shake:push(r, 3)
   269→  self.spring:pull('shoot', 0.25)
   270→  self.flashing = true
   271→  self.timer:after(0.15, 'flash', function() self.flashing = false end)
   272→  an:add(hit_circle(spawn_x, spawn_y, {radius = 7, duration = 0.2}))
   273→  for i = 1, 2 do
   274→    an:add(hit_particle(spawn_x, spawn_y, {
   275→      angle = r + an.random:float(-math.pi/4, math.pi/4),
   276→      velocity = an.random:float(40, 200),
   277→      duration = an.random:float(0.3, 0.6),
   278→      w = an.random:choice({6, 8}),
   279→    }):change_color(0.6, self.color:clone()))
   280→  end
   281→end
   282→

The file E:\a327ex\Orblike\main.lua has been updated successfully.

   230→function player:attack()
   231→  local r = self.r
   232→  local spawn_x = self.x + 8*math.cos(r)
   233→  local spawn_y = self.y + 8*math.sin(r)
   234→
   235→  if self.current_ability == 'fireball' then
   236→    local shots = {{x = spawn_x, y = spawn_y, r = r}}
   237→
   238→    if debug_multi_shot_type == 'fan' and debug_multi_shot_count >= 2 then
   239→      local n = debug_multi_shot_count
   240→      local spread = math.pi/6 + (n - 2)*math.pi/12
   241→      shots = {}
   242→      for i = 1, n do
   243→        local t = (i - 1)/(n - 1)
   244→        table.insert(shots, {x = spawn_x, y = spawn_y, r = r + spread*(t - 0.5)})
   245→      end
   246→    elseif debug_multi_shot_type == 'volley' and debug_multi_shot_count >= 2 then
   247→      local n = debug_multi_shot_count
   248→      local total_offset = 10*(n - 1)
   249→      shots = {}
   250→      for i = 1, n do
   251→        local t = (i - 1)/(n - 1)
   252→        local offset = total_offset*(t - 0.5)
   253→        local px = r + math.pi/2
   254→        table.insert(shots, {x = spawn_x + offset*math.cos(px), y = spawn_y + offset*math.sin(px), r = r})
   255→      end
   256→    end
   257→
   258→    for _, shot in ipairs(shots) do
   259→      an:add(projectile(shot.x, shot.y, {ability = 'fireball', color = self.color, r = shot.r}))
... [25 more lines]

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   230→function player:attack()
   231→  local r = self.r
   232→  local spawn_x = self.x + 8*math.cos(r)
   233→  local spawn_y = self.y + 8*math.sin(r)
   234→
   235→  local shots = {{x = spawn_x, y = spawn_y, r = r}}
   236→
   237→  if self.current_ability == 'fireball' then
   238→
   239→    if debug_multi_shot_type == 'fan' and debug_multi_shot_count >= 2 then
   240→      local n = debug_multi_shot_count
   241→      local spread = math.pi/6 + (n - 2)*math.pi/12
   242→      shots = {}
   243→      for i = 1, n do
   244→        local t = (i - 1)/(n - 1)
   245→        table.insert(shots, {x = spawn_x, y = spawn_y, r = r + spread*(t - 0.5)})
   246→      end
   247→    elseif debug_multi_shot_type == 'volley' and debug_multi_shot_count >= 2 then
   248→      local n = debug_multi_shot_count
   249→      local total_offset = 10*(n - 1)
   250→      shots = {}
   251→      for i = 1, n do
   252→        local t = (i - 1)/(n - 1)
   253→        local offset = total_offset*(t - 0.5)
   254→        local px = r + math.pi/2
   255→        table.insert(shots, {x = spawn_x + offset*math.cos(px), y = spawn_y + offset*math.sin(px), r = r})
   256→      end
   257→    end
   258→
   259→    for _, shot in ipairs(shots) do
... [40 more lines]

   700→    local r = math.angle_to_point(p.x, p.y, e.x, e.y)
   701→    e:push(r, 6)
   702→    sfx('player_hit', volumes.player_hit)
   703→    p.spring:pull('hit', 0.2)
   704→    p.flashing = true
   705→    p.timer:after(0.1, 'flash', function() p.flashing = false end)
   706→    an:add(hit_circle(event.point_x, event.point_y, {radius = 6, duration = 0.15}))
   707→    for i = 1, an.random:int(1, 2) do
   708→      an:add(hit_particle(event.point_x, event.point_y, {velocity = an.random:float(60, 120), duration = an.random:float(0.1, 0.3)}))
   709→    end
   710→  end
   711→
   712→  -- Projectile-enemy hit
   713→  for _, event in ipairs(an:sensor_begin_events('projectile', 'enemy')) do
   714→    local proj, e = event.a, event.b
   715→    local r = math.angle_to_point(e.x, e.y, proj.x, proj.y)
   716→    local s = math.max(e.w, e.h)
   717→    local hx = e.x + s*0.75*math.cos(r)
   718→    local hy = e.y + s*0.75*math.sin(r)
   719→    proj:on_hit(e, hx, hy)
   720→  end
   721→end)
   722→
   723→-- Debug
   724→debug_multi_shot_type = nil
   725→debug_multi_shot_count = 3
   726→local multi_shot_types = {nil, 'fan', 'volley'}
   727→local multi_shot_type_index = 1
   728→an:action(function()
   729→  if an:key_is_pressed('k') then

   728→an:action(function()
   729→  if an:key_is_pressed('k') then
   730→    an:add(seeker(p1.x + an.random:float(-80, 80), p1.y + an.random:float(-60, 60)))
   731→  end
   732→  if an:key_is_pressed('l') then
   733→    for i = 1, 5 do
   734→      an:add(seeker(p1.x + an.random:float(-120, 120), p1.y + an.random:float(-80, 80)))
   735→    end
   736→  end
   737→  if an:key_is_pressed('7') then
   738→    multi_shot_type_index = multi_shot_type_index % 3 + 1
   739→    debug_multi_shot_type = multi_shot_types[multi_shot_type_index]
   740→    print('multi_shot_type: ' .. tostring(debug_multi_shot_type) .. ', count: ' .. debug_multi_shot_count)
   741→  end
   742→  if an:key_is_pressed('8') then
   743→    debug_multi_shot_count = math.max(debug_multi_shot_count - 1, 2)
   744→    print('multi_shot_type: ' .. tostring(debug_multi_shot_type) .. ', count: ' .. debug_multi_shot_count)
   745→  end
   746→  if an:key_is_pressed('9') then
   747→    debug_multi_shot_count = math.min(debug_multi_shot_count + 1, 6)
   748→    print('multi_shot_type: ' .. tostring(debug_multi_shot_type) .. ', count: ' .. debug_multi_shot_count)
   749→  end
   750→end)
   751→
   752→-- Draw background

The file E:\a327ex\Orblike\main.lua has been updated successfully.

The file E:\a327ex\Orblike\main.lua has been updated successfully.

   136→function player:new(x, y)
   137→  object.new(self, 'player')
   138→  self:tag('player')
   139→  self.x, self.y = x, y
   140→  self.w, self.h = 10, 10
   141→  self.speed = 100
   142→  self.r = 0
   143→  self.visual_r = 0
   144→  self.sx, self.sy = 1, 1
   145→  self.color = blue
   146→  self.moving = false
   147→  self.previous_moving = false
   148→  self.flashing = false
   149→  self.cooldown = 0
   150→  self.current_ability = 'fireball'

   150→  self.current_ability = 'fireball'
   151→
   152→  self:add(collider('player', 'dynamic', 'box', 10, 10))
   153→  self.collider:set_gravity_scale(0)
   154→  self.collider:set_fixed_rotation(true)
   155→  self.collider:set_position(self.x, self.y)
   156→
   157→  self:add(timer())
   158→  self:add(spring())
   159→  self.spring:add('hit', 1)
   160→  self.spring:add('shoot', 1)
   161→  self.spring:add('move', 1)
   162→end
   163→
   164→function player:update(dt)

The file E:\a327ex\Orblike\main.lua has been updated successfully.

The file E:\a327ex\Orblike\main.lua has been updated successfully.

690:p1 = player(gw/2, gh/2)

The file E:\a327ex\Orblike\main.lua has been updated successfully.

   236→  local spawn_x = self.x + 8*math.cos(r)
   237→  local spawn_y = self.y + 8*math.sin(r)
   238→
   239→  -- Build shot angles (spread)
   240→  local angles = {r}
   241→  if self.spreading_multiple_projectiles and self.spreading_multiple_projectiles >= 2 then
   242→    local n = self.spreading_multiple_projectiles
   243→    local spread = math.pi/6 + (n - 2)*math.pi/12
   244→    angles = {}
   245→    for i = 1, n do
   246→      local t = (i - 1)/(n - 1)
   247→      table.insert(angles, r + spread*(t - 0.5))
   248→    end
   249→  end
   250→
   251→  -- Build shot positions (parallel offsets per angle)
   252→  local shots = {}
   253→  for _, angle in ipairs(angles) do
   254→    if self.parallel_multiple_projectiles and self.parallel_multiple_projectiles >= 2 then
   255→      local n = self.parallel_multiple_projectiles
   256→      local total_offset = 10*(n - 1)
   257→      for i = 1, n do
   258→        local t = (i - 1)/(n - 1)
   259→        local offset = total_offset*(t - 0.5)
   260→        local px = angle + math.pi/2

The file E:\a327ex\Orblike\main.lua has been updated successfully.

The file E:\a327ex\Orblike\main.lua has been updated successfully.

The file E:\a327ex\Orblike\main.lua has been updated successfully.

     1→# Implemented
     2→
     3→## Abilities
     4→
     5→- **Fireball** — Projectile that explodes on hit, spawning an area that deals AoE damage.
     6→
     7→## Modifiers
     8→
     9→- **Homing** — Projectile steers toward closest enemy with quadratic distance falloff past 200 units. Convergence force and duration randomized per projectile at spawn.
    10→- **Weaker Homing** — Lower convergence force and higher duration for softer tracking.
    11→- **Stronger Homing** — Higher convergence force and lower duration for aggressive tracking.
    12→- **Progressively Increasing Homing** — After 0.5s, convergence increases continuously at 15% of base value per 0.5s, capped at 0.95.
    13→- **Progressively Decreasing Homing** — After 0.5s, convergence decreases continuously at 15% of base value per 0.5s, no lower limit.
    14→- **Delayed Homing** — Homing activates after 0.5s instead of the default 0.2s.
    15→- **Very Delayed Homing** — Homing activates after 1s.
    16→

The file E:\a327ex\Orblike\implemented.md has been updated successfully.

   234→function player:attack()
   235→  local r = self.r
   236→  local spawn_x = self.x + 8*math.cos(r)
   237→  local spawn_y = self.y + 8*math.sin(r)
   238→
   239→  -- Build shot angles (spread)
   240→  local angles = {r}
   241→  if self.spreading_multiple_projectiles and self.spreading_multiple_projectiles >= 2 then
   242→    local n = self.spreading_multiple_projectiles
   243→    local spread = math.pi/6 + (n - 2)*math.pi/12
   244→    angles = {}
   245→    for i = 1, n do
   246→      local t = (i - 1)/(n - 1)
   247→      table.insert(angles, r + spread*(t - 0.5))
   248→    end
   249→  end
   250→
   251→  -- Build shot positions (each shot spawns along its own angle, with parallel offsets perpendicular)
   252→  local shots = {}
   253→  for _, angle in ipairs(angles) do
   254→    local sx = self.x + 8*math.cos(angle)
   255→    local sy = self.y + 8*math.sin(angle)
   256→    if self.parallel_multiple_projectiles and self.parallel_multiple_projectiles >= 2 then
   257→      local n = self.parallel_multiple_projectiles
   258→      local total_offset = 10*(n - 1)
   259→      for i = 1, n do
   260→        local t = (i - 1)/(n - 1)
   261→        local offset = total_offset*(t - 0.5)
   262→        local px = angle + math.pi/2
   263→        table.insert(shots, {x = sx + offset*math.cos(px), y = sy + offset*math.sin(px), r = angle})

The file E:\a327ex\Orblike\main.lua has been updated successfully.

The file E:\a327ex\Orblike\main.lua has been updated successfully.

The file E:\a327ex\Orblike\main.lua has been updated successfully.

The file E:\a327ex\Orblike\implemented.md has been updated successfully.

   300→        angle = shot.r + an.random:float(-math.pi/4, math.pi/4),
   301→        velocity = an.random:float(40, 200),
   302→        duration = an.random:float(0.3, 0.6),
   303→        w = an.random:choice({6, 8}),
   304→      }):change_color(0.6, self.color:clone()))
   305→    end
   306→  end
   307→end
   308→
   309→
   310→-- Projectile carrier
   311→projectile = object:extend()
   312→function projectile:new(x, y, args)
   313→  object.new(self)
   314→  self:tag('projectile')
   315→  self.x, self.y = x, y
   316→  self.r = args.r or 0
   317→  self.ability = args.ability
   318→  self.color = args.color
   319→  self.w = 10
   320→  self.h = 4
   321→  self.speed = 190
   322→  self.damage = 1
   323→  self.flashing = false
   324→
   325→  self.homing = args.homing
   326→  self.weaker_homing = args.weaker_homing
   327→  self.stronger_homing = args.stronger_homing
   328→  self.progressively_increasing_homing = args.progressively_increasing_homing
   329→  self.progressively_decreasing_homing = args.progressively_decreasing_homing
... [10 more lines]

   410→  end
   411→
   412→  local s = self.spring.main.x
   413→  local c = self.flashing and fg_color() or self.color()
   414→  game:push(self.x, self.y, self.r, s, s)
   415→  game:rounded_rectangle(-self.w/2, -self.h/2, self.w, self.h, 2, c)
   416→  game:pop()
   417→end
   418→
   419→function projectile:on_hit(e, hx, hy)
   420→  if self.ability == 'fireball' then
   421→    an:add(area(self.x, self.y, {ability = 'fireball', color = self.color}))
   422→  end
   423→  self:kill()
   424→end
   425→
   426→
   427→-- Area carrier
   428→area = object:extend()
   429→function area:new(x, y, args)

The file E:\a327ex\Orblike\main.lua has been updated successfully.

The file E:\a327ex\Orblike\main.lua has been updated successfully.

The file E:\a327ex\Orblike\main.lua has been updated successfully.

The file E:\a327ex\Orblike\main.lua has been updated successfully.

<tool_use_error>String to replace not found in file.
String: p1 = player(gw/2, gh/2, {backshot = true, sideshots = true, spreading_multiple_projectiles = 3, parallel_multiple_projectiles = 2})</tool_use_error>

713:p1 = player(gw/2, gh/2, {backshot = true, sideshots = true, nova = true, spreading_multiple_projectiles = 3, parallel_multiple_projectiles = 2})

The file E:\a327ex\Orblike\main.lua has been updated successfully.

   718→  -- Player-enemy collision
   719→  for _, event in ipairs(an:collision_begin_events('player', 'enemy')) do
   720→    local p, e = event.a, event.b
   721→    local r = math.angle_to_point(p.x, p.y, e.x, e.y)
   722→    e:push(r, 6)
   723→    sfx('player_hit', volumes.player_hit)
   724→    p.spring:pull('hit', 0.2)
   725→    p.flashing = true
   726→    p.timer:after(0.1, 'flash', function() p.flashing = false end)
   727→    an:add(hit_circle(event.point_x, event.point_y, {radius = 6, duration = 0.15}))
   728→    for i = 1, an.random:int(1, 2) do
   729→      an:add(hit_particle(event.point_x, event.point_y, {velocity = an.random:float(60, 120), duration = an.random:float(0.1, 0.3)}))
   730→    end
   731→  end
   732→
   733→  -- Projectile-enemy hit
   734→  for _, event in ipairs(an:sensor_begin_events('projectile', 'enemy')) do
   735→    local proj, e = event.a, event.b
   736→    local r = math.angle_to_point(e.x, e.y, proj.x, proj.y)
   737→    local s = math.max(e.w, e.h)

The file E:\a327ex\Orblike\main.lua has been updated successfully.

The file E:\a327ex\Orblike\main.lua has been updated successfully.

The file E:\a327ex\Orblike\implemented.md has been updated successfully.

     1→require('anchor')({width = 480, height = 270, scale = 3})
     2→
     3→gw, gh = an.width, an.height
     4→
     5→volumes = {
     6→  enemy_die = 0.8,
     7→  enemy_hit = 0.8,
     8→  fireball_fire = 0.45,
     9→  fireball_hit = 0.45,
    10→  enemy_spawn = 0.59,
    11→  player_hit = 0.39,
    12→}
    13→
    14→-- SNKRX palette
    15→bg_color = color(48, 48, 48)
    16→bg_off = color(46, 46, 46)
    17→fg_color = color(218, 218, 218)
    18→fg_alt = color(176, 168, 159)
    19→yellow = color(250, 207, 0)
    20→orange = color(240, 112, 33)
    21→blue = color(1, 155, 214)
    22→green = color(139, 191, 64)
    23→red = color(233, 29, 57)
    24→purple = color(142, 85, 158)
    25→blue2 = color(71, 120, 186)
    26→yellow2 = color(245, 159, 16)
    27→
    28→palette = {fg_color, fg_alt, yellow, orange, blue, green, red, purple, blue2, yellow2}
    29→
    30→-- Physics
... [1118 more lines]

[
  {
    "type": "text",
    "text": "Excellent! Now I have a comprehensive view of the boomerang implementation. Let me compile the complete findings:\n\n## Boomerang Weapon Implementation - Full Code\n\nI found the complete boomerang weapon implementation in `E:/a327ex/emoji-ball-battles/main.lua`. Here are all the relevant code sections:\n\n### 1. Initialization (Projectile Creation)\n\nLines 3979-4002 set up the boomerang projectile with all key parameters:\n\n```lua\nelseif self.projectile_type == 'boomerang' then\n  self.w = 12\n  self.h = 12\n  self.boomerang_spin = args.boomerang_start_angle or 0\n  self.boomerang_spin_speed = 12*math.pi\n  self.boomerang_scale = args.boomerang_scale or 20/512\n  self.boomerang_rotation_offset = args.boomerang_rotation_offset or 0\n  self.boomerang_time = 0\n  self.boomerang_min_time = 0.5\n  self.boomerang_speed = 350\n  self.boomerang_angle_offset = args.boomerang_angle_offset or math.pi/4\n  self.boomerang_move_angle = self.direction + self.boomerang_angle_offset\n  self.boomerang_turn_rate = args.boomerang_turn_rate or -3.5  -- radians/s, negative = clockwise\n  self.boomerang_returning = false\n  self.boomerang_homing_strength = 0.42\n  self.damage = args.boomerang_damage or 1\n  self.boomerang_damage_triggered = false\n  self.boomerang_sound_angle = 0\n  self:add(collider('boomerang_projectile', 'dynamic', 'box', self.w, self.h))\n  self.collider:set_position(self.x, self.y)\n  self.collider:set_gravity_scale(0)\n  self.collider:set_friction(0)\n  self.collider:set_density(0.1)\n  self.collider:set_velocity(self.boomerang_speed*math.cos(self.boomerang_move_angle), self.boomerang_speed*math.sin(self.boomerang_move_angle))\n```\n\n**Key Parameters:**\n- `boomerang_speed = 350` \u2014 constant movement speed\n- `boomerang_turn_rate = -3.5` (radians/s) \u2014 passed from firing, can be sign-flipped\n- `boomerang_homing_strength = 0.42` \u2014 return phase strength\n- `boomerang_angle_offset = math.pi/4` \u2014 45 degrees outward\n\n### 2. Update/Physics Loop (Lines 4092-4135)\n\nThis handles both the outward arc and return homing phases:\n\n```lua\nif self.projectile_type == 'boomerang' then\n  self.boomerang_time = self.boomerang_time + dt\n  self.boomerang_spin = self.boomerang_spin + self.boomerang_spin_speed*dt\n  local owner = self.team == 'player' and self.parent.parent.player_ball or self.parent.parent.enemy_ball\n  if owner and owner.parent then\n    -- Detect return phase: past the halfway point of the circle\n    if not self.boomerang_returning and self.boomerang_time >= math.pi/math.abs(self.boomerang_turn_rate) then\n      self.boomerang_returning = true\n    end\n    if self.boomerang_returning then\n      -- On return, home toward owner\n      local angle_to_owner = math.angle_to_point(self.x, self.y, owner.x, owner.y)\n      self.boomerang_move_angle = math.lerp_angle_dt(0.9, self.boomerang_homing_strength, dt, self.boomerang_move_angle, angle_to_owner)\n    else\n      -- Outward: rotate move angle at constant rate (traces a circle)\n      self.boomerang_move_angle = self.boomerang_move_angle + self.boomerang_turn_rate*dt\n    end\n    -- Set velocity from angle and constant speed\n    self.collider:set_velocity(self.boomerang_speed*math.cos(self.boomerang_move_angle), self.boomerang_speed*math.sin(self.boomerang_move_angle))\n    -- Distance to owner (used for sound volume and catch check)\n    local d = math.distance(self.x, self.y, owner.x, owner.y)\n    -- Swing sound matched to spin\n    self.boomerang_sound_angle = self.boomerang_sound_angle + self.boomerang_spin_speed*dt\n    if self.boomerang_sound_angle >= 2*math.pi then\n      self.boomerang_sound_angle = self.boomerang_sound_angle - 2*math.pi\n      local volume = 0.7*(1 - 0.25*math.clamp(d/200, 0, 1))\n      an:sound_play(\"dagger_swing_\" .. an.random:int(1, 5), volume, an.random:float(0.95, 1.05))\n    end\n    -- Check if close enough to owner to catch\n    if d < 15 and self.boomerang_time >= self.boomerang_min_time then\n      owner.boomerang_thrown = false\n      owner.spring:pull('weapon', 0.4, 3, 0.5)\n      -- Recreate weapon shapes\n      local hitbox_oy = owner.weapon_hitbox_offset_y or 0\n      owner.weapon_shape = owner.collider:add_box('weapon', owner.weapon_hitbox_length, owner.weapon_hitbox_width, {offset_x = owner.weapon_hitbox_offset, offset_y = hitbox_oy})\n      owner.collider:set_restitution(1, owner.weapon_shape)\n      owner.collider:set_density(0, owner.weapon_shape)\n      owner.weapon_sensor = owner.collider:add_box('weapon_hitbox', owner.weapon_hitbox_length, owner.weapon_hitbox_width, {offset_x = owner.weapon_hitbox_offset, offset_y = hitbox_oy, sensor = true})\n      owner.collider:set_restitution(1, owner.weapon_sensor)\n      owner.collider:set_density(0, owner.weapon_sensor)\n```\n\n**Phase Transition Logic:**\n- Outward phase runs for `math.pi/math.abs(boomerang_turn_rate)` seconds (semicircle time)\n- Return phase uses `math.lerp_angle_dt(0.9, homing_strength, dt, current_angle, target_angle)` for smooth homing\n- Catch distance: 15 units from owner, minimum 0.5 seconds flight time\n\n### 3. Firing Logic (Lines 2730-2754)\n\nThe ball fires the boomerang with side-safe checks:\n\n```lua\nfunction ball:boomerang_fire()\n  local can_fire, side = self:boomerang_can_fire()\n  if not can_fire then return end\n  self.boomerang_ready = false\n  self.boomerang_thrown = true\n  self.spring:pull('weapon', 0.6, 3, 0.7)\n  -- Destroy weapon shapes so ball is defenseless while boomerang is out\n  self.collider:destroy_shape(self.weapon_shape)\n  self.collider:destroy_shape(self.weapon_sensor)\n  -- Spawn boomerang projectile from weapon tip\n  local spawn_x = self.x + self.weapon_visual_offset*math.cos(self.angle)\n  local spawn_y = self.y + self.weapon_visual_offset*math.sin(self.angle)\n  self.parent.projectiles:add(projectile(spawn_x, spawn_y, {\n    projectile_type = 'boomerang',\n    direction = self.angle,\n    team = self.team,\n    flash_on_spawn = true,\n    boomerang_scale = self.weapon_scale,\n    boomerang_rotation_offset = self.weapon_rotation_offset,\n    boomerang_start_angle = self.angle + self.weapon_rotation_offset,\n    boomerang_angle_offset = side*math.pi/4,\n    boomerang_turn_rate = -side*3.5,\n    boomerang_damage = self.boomerang_damage,\n  }))\nend\n```\n\n**Parameters Passed to Projectile:**\n- `boomerang_angle_offset = side*math.pi/4` \u2014 direction (\u00b145\u00b0)\n- `boomerang_turn_rate = -side*3.5` \u2014 sign flipped based on throw side\n\n### 4. Wall Bounce (Line 4269-4270)\n\nWhen hitting a wall during outward phase:\n\n```lua\nelseif self.projectile_type == 'boomerang' then\n  self.boomerang_move_angle = math.reflect(self.boomerang_move_angle, normal_x, normal_y)\n```\n\nThe movement angle is reflected off the wall normal.\n\n### 5. Cooldown Management\n\n- **Cooldown:** `4.5` seconds (lines 1889)\n- **Trigger:** `timer:when` waits for `boomerang_ready and boomerang_can_fire()`\n- **Reset on catch:** Cooldown timer restarted when boomerang is caught (lines 4132-4135)\n\n---\n\n## Summary of Key Parameters\n\n| Parameter | Value | Description |\n|-----------|-------|-------------|\n| `boomerang_speed` | 350 | Constant velocity magnitude (pixels/sec) |\n| `boomerang_turn_rate` | \u00b13.5 | Outward arc curvature (radians/sec, sign indicates direction) |\n| `boomerang_homing_strength` | 0.42 | Return phase blending strength (0-1) |\n| `boomerang_angle_offset` | \u03c0/4 (45\u00b0) | Initial direction offset from ball facing |\n| `boomerang_min_time` | 0.5 sec | Minimum flight time before catch |\n| `boomerang_cooldown` | 4.5 sec | Firing cooldown |\n| Return phase trigger | \u03c0 / \\|turn_rate\\| | Time elapsed before return begins (semicircle) |\n| Catch distance | 15 units | Proximity to owner for auto-catch |\n\nThe implementation uses elegant physics: constant speed with changing angle to trace circular/spiral paths, then switches to angle-lerping for homing return."
  },
  {
    "type": "text",
    "text": "agentId: a2b1b82cbd6e007bb (for resuming to continue this agent's work if needed)\n<usage>total_tokens: 26142\ntool_uses: 14\nduration_ms: 55799</usage>"
  }
]

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The file E:\a327ex\Orblike\main.lua has been updated successfully.

The file E:\a327ex\Orblike\main.lua has been updated successfully.

The file E:\a327ex\Orblike\main.lua has been updated. All occurrences of '      if math.distance(self.x, self.y, p1.x, p1.y) < 15 then' were successfully replaced with '      if math.distance(self.x, self.y, p1.x, p1.y) < 5 then'.

The file E:\a327ex\Orblike\main.lua has been updated successfully.

   420→      if d >= self.returning then
   421→        self.returning_phase = true
   422→      end
   423→    end
   424→    if self.returning_phase then
   425→      local target_r = math.angle_to_point(self.x, self.y, p1.x, p1.y)
   426→      self.r = math.lerp_angle_dt(0.9, 0.5, dt, self.r, target_r)
   427→      if math.distance(self.x, self.y, p1.x, p1.y) < 5 then
   428→        self:kill()
   429→        return
   430→      end
   431→    end
   432→  end
   433→
   434→  -- Arc returning
   435→  if self.returning_arc then
   436→    self.returning_arc_time = self.returning_arc_time + dt
   437→    if not self.returning_phase and self.returning_arc_time >= 1 then
   438→      self.returning_phase = true
   439→    end
   440→    if self.returning_phase then
   441→      local target_r = math.angle_to_point(self.x, self.y, p1.x, p1.y)
   442→      self.r = math.lerp_angle_dt(0.9, 0.42, dt, self.r, target_r)
   443→      if math.distance(self.x, self.y, p1.x, p1.y) < 5 then
   444→        self:kill()
   445→        return
   446→      end
   447→    else
   448→      self.r = self.r + self.returning_arc_turn_rate*dt
   449→    end
... [30 more lines]

The file E:\a327ex\Orblike\main.lua has been updated successfully.

The file E:\a327ex\Orblike\main.lua has been updated. All occurrences of '      if math.distance(self.x, self.y, p1.x, p1.y) < 5 then
        self:kill()
        return
      end' were successfully replaced with '      if math.distance(self.x, self.y, p1.x, p1.y) < 5 then
        self:die_effect()
        self:kill()
        return
      end'.

The file E:\a327ex\Orblike\main.lua has been updated successfully.

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The file E:\a327ex\Orblike\main.lua has been updated. All occurrences of '        self:die_effect()
        self:kill()
        return' were successfully replaced with '        self:die()
        return'.

The file E:\a327ex\Orblike\main.lua has been updated successfully.

The file E:\a327ex\Orblike\main.lua has been updated. All occurrences of 'if math.distance(self.x, self.y, p1.x, p1.y) < 5 then' were successfully replaced with 'if math.distance(self.x, self.y, p1.x, p1.y) < 8 then'.

   345→    self.returning_arc_time = 0
   346→    self.returning_arc_turn_rate = an.random:choice({-1, 1})*3.5
   347→    self.r = self.r + (self.returning_arc_turn_rate > 0 and math.pi/6 or -math.pi/6)
   348→    self.returning_phase = false
   349→  end
   350→
   351→  if self.ability == 'fireball' then
   352→    self.explosion_radius = 25
   353→  end
   354→
   355→  self:add(collider('projectile', 'dynamic', 'box', self.w, self.h, {sensor = true}))
   356→  self.collider:set_gravity_scale(0)
   357→  self.collider:set_fixed_rotation(true)
   358→  self.collider:set_angle(self.r)
   359→  self.collider:set_position(self.x, self.y)
   360→
   361→  self:add(timer())
   362→  self:add(spring())
   363→  self.spring:add('main', 1)
   364→  self.spring:pull('main', 0.5)
   365→  self.flashing = true
   366→  self.timer:after(0.2, 'flash', function() self.flashing = false end)
   367→
   368→  if self.homing then
   369→    self.homing_active = false

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The file E:\a327ex\Orblike\main.lua has been updated. All occurrences of '      self.returning_homing = math.min(self.returning_homing + 0.15*dt, 0.95)' were successfully replaced with '      self.returning_homing = math.max(self.returning_homing - 0.15*dt, 0.05)'.

The file E:\a327ex\Orblike\main.lua has been updated. All occurrences of 'self.returning_homing = math.max(self.returning_homing - 0.15*dt, 0.05)' were successfully replaced with 'self.returning_homing = math.max(self.returning_homing - 0.075*dt, 0.05)'.

The file E:\a327ex\Orblike\main.lua has been updated. All occurrences of 'self.returning_homing = math.max(self.returning_homing - 0.075*dt, 0.05)' were successfully replaced with 'self.returning_homing = math.max(self.returning_homing - 0.0375*dt, 0.05)'.

   436→
   437→  -- Arc returning
   438→  if self.returning_arc then
   439→    self.returning_arc_time = self.returning_arc_time + dt
   440→    if not self.returning_phase and self.returning_arc_time >= 1 then
   441→      self.returning_phase = true
   442→    end
   443→    if self.returning_phase then
   444→      self.returning_homing = math.max(self.returning_homing - 0.0375*dt, 0.05)
   445→      local target_r = math.angle_to_point(self.x, self.y, p1.x, p1.y)
   446→      self.r = math.lerp_angle_dt(0.9, self.returning_homing, dt, self.r, target_r)
   447→      if math.distance(self.x, self.y, p1.x, p1.y) < 8 then
   448→        self:die()
   449→        return
   450→      end
   451→    else
   452→      self.r = self.r + self.returning_arc_turn_rate*dt
   453→    end
   454→  end
   455→

The file E:\a327ex\Orblike\main.lua has been updated successfully.

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The file E:\a327ex\Orblike\main.lua has been updated successfully.

The file E:\a327ex\Orblike\main.lua has been updated successfully.

The file E:\a327ex\Orblike\main.lua has been updated successfully.

The file E:\a327ex\Orblike\main.lua has been updated successfully.

The file E:\a327ex\Orblike\main.lua has been updated successfully.

The file E:\a327ex\Orblike\main.lua has been updated successfully.

The file E:\a327ex\Orblike\main.lua has been updated successfully.

The file E:\a327ex\Orblike\main.lua has been updated successfully.

The file E:\a327ex\Orblike\main.lua has been updated successfully.

The file E:\a327ex\Orblike\main.lua has been updated successfully.

The file E:\a327ex\Orblike\main.lua has been updated successfully.

The file E:\a327ex\Orblike\main.lua has been updated successfully.

The file E:\a327ex\Orblike\main.lua has been updated. All occurrences of '      if math.distance(self.x, self.y, p1.x, p1.y) < 8 then
        self:die()
        return
      end' were successfully replaced with '      if math.distance(self.x, self.y, p1.x, p1.y) < 8 then
        p1.spring:pull('shoot', 0.15)
        self:die()
        return
      end'.

The file E:\a327ex\Orblike\main.lua has been updated. All occurrences of '      if math.distance(self.x, self.y, p1.x, p1.y) < 8 then
        p1.spring:pull('shoot', 0.15)
        self:die()
        return
      end' were successfully replaced with '      if math.distance(self.x, self.y, p1.x, p1.y) < 8 then
        p1.spring:pull('shoot', 0.15)
        p1.flashing = true
        p1.timer:after(0.1, 'flash', function() p1.flashing = false end)
        self:die()
        return
      end'.

3993-    self.boomerang_homing_strength = 0.42
3994-    self.damage = args.boomerang_damage or 1
3995-    self.boomerang_damage_triggered = false
3996:    self.boomerang_sound_angle = 0
3997-    self:add(collider('boomerang_projectile', 'dynamic', 'box', self.w, self.h))
3998-    self.collider:set_position(self.x, self.y)
3999-    self.collider:set_gravity_scale(0)
--
4111-      -- Distance to owner (used for sound volume and catch check)
4112-      local d = math.distance(self.x, self.y, owner.x, owner.y)
4113-      -- Swing sound matched to spin
4114:      self.boomerang_sound_angle = self.boomerang_sound_angle + self.boomerang_spin_speed*dt
4115:      if self.boomerang_sound_angle >= 2*math.pi then
4116:        self.boomerang_sound_angle = self.boomerang_sound_angle - 2*math.pi
4117-        local volume = 0.7*(1 - 0.25*math.clamp(d/200, 0, 1))
4118-        an:sound_play("dagger_swing_" .. an.random:int(1, 5), volume, an.random:float(0.95, 1.05))
4119-      end

1885-    self.weapon_weight = 1.0
1886-    self.hit_stop_multiplier = 1.0
1887-    self.hit_particle_multiplier = 1.0
1888-    self.camera_shake_multiplier = 1.0
1889-    self.boomerang_cooldown = 4.5
1890:    self.boomerang_thrown = false
1891-    self.boomerang_damage = 1
1892-
1893-  elseif self.weapon_type == 'kitchen_knife' then
1894-    self.weapon_class = 'melee'
1895-    self.weapon_image = an.images.kitchen_knife
--
4117-        local volume = 0.7*(1 - 0.25*math.clamp(d/200, 0, 1))
4118-        an:sound_play("dagger_swing_" .. an.random:int(1, 5), volume, an.random:float(0.95, 1.05))
4119-      end
4120-      -- Check if close enough to owner to catch
4121-      if d < 15 and self.boomerang_time >= self.boomerang_min_time then
4122:        owner.boomerang_thrown = false
4123-        owner.spring:pull('weapon', 0.4, 3, 0.5)
4124-        -- Recreate weapon shapes
4125-        local hitbox_oy = owner.weapon_hitbox_offset_y or 0
4126-        owner.weapon_shape = owner.collider:add_box('weapon', owner.weapon_hitbox_length, owner.weapon_hitbox_width, {offset_x = owner.weapon_hitbox_offset, offset_y = hitbox_oy})
4127-        owner.collider:set_restitution(1, owner.weapon_shape)

  4127→        owner.collider:set_restitution(1, owner.weapon_shape)
  4128→        owner.collider:set_density(0, owner.weapon_shape)
  4129→        owner.weapon_sensor = owner.collider:add_box('weapon_hitbox', owner.weapon_hitbox_length, owner.weapon_hitbox_width, {offset_x = owner.weapon_hitbox_offset, offset_y = hitbox_oy, sensor = true})
  4130→        owner.collider:set_restitution(1, owner.weapon_sensor)
  4131→        owner.collider:set_density(0, owner.weapon_sensor)
  4132→        owner.boomerang_ready = false
  4133→        owner.timer:after(owner.boomerang_cooldown, 'boomerang_cooldown', function() owner.boomerang_ready = true end)
  4134→        owner.timer:when(function() return owner.boomerang_ready and owner:boomerang_can_fire() end, 'boomerang_fire', function() owner:boomerang_fire() end)
  4135→        owner.cooldown_bar:activate(owner.boomerang_cooldown)
  4136→        self:kill()
  4137→      end
  4138→    else
  4139→      -- Owner dead, just die
  4140→      self:kill()
  4141→    end
  4142→  end
  4143→  -- Kitchen knife: flies forward, bounces off walls, sticks after bounces
  4144→  if self.projectile_type == 'kitchen_knife' then
  4145→    if self.kitchen_knife_stuck then
  4146→      self.collider:set_velocity(0, 0)

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The file E:\a327ex\Orblike\main.lua has been updated successfully.

   335→  self.pierce = args.pierce
   336→  self.returning = args.returning
   337→  self.returning_arc = args.returning_arc
   338→
   339→  if self.returning then
   340→    self.origin_x, self.origin_y = x, y
   341→    self.returning_phase = false
   342→    self.returning_homing = 0.5
   343→  end
   344→

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   468→      end
   469→    elseif self.returning_arc_turning then
   470→      self.r = self.r + self.returning_arc_turn_rate*dt
   471→    end
   472→  end
   473→
   474→  self.collider:set_velocity(self.speed*math.cos(self.r), self.speed*math.sin(self.r))
   475→
   476→  -- Wall-hit effect (boundary death disabled — final game will use solid walls)
   477→  -- if self.x < 0 or self.x > gw or self.y < 0 or self.y > gh then
   478→  --   an:add(hit_circle(self.x, self.y, {radius = 6, duration = 0.15}))
   479→  --   for i = 1, 2 do
   480→  --     an:add(hit_particle(self.x, self.y, {velocity = an.random:float(50, 100), duration = an.random:float(0.1, 0.3)}))
   481→  --   end
   482→  --   if self.ability == 'fireball' then

The file E:\a327ex\Orblike\main.lua has been updated successfully.

   487→  --   return
   488→  -- end
   489→
   490→  local s = self.spring.main.x
   491→  local c = self.flashing and fg_color() or self.color()
   492→  game:push(self.x, self.y, self.r, s, s)
   493→  game:rounded_rectangle(-self.w/2, -self.h/2, self.w, self.h, 2, c)
   494→  game:pop()
   495→end
   496→

<tool_use_error>Found 2 matches of the string to replace, but replace_all is false. To replace all occurrences, set replace_all to true. To replace only one occurrence, please provide more context to uniquely identify the instance.
String:   game:push(self.x, self.y, self.r, s, s)</tool_use_error>

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   150→  self.current_ability = 'fireball'
   151→
   152→  args = args or {}
   153→  self.spreading_multiple_projectiles = args.spreading_multiple_projectiles
   154→  self.parallel_multiple_projectiles = args.parallel_multiple_projectiles
   155→  self.backshot = args.backshot
   156→  self.sideshots = args.sideshots
   157→  self.nova = args.nova
   158→  self.pierce = args.pierce
   159→  self.returning = args.returning
   160→  self.returning_arc = args.returning_arc
   161→
   162→  self:add(collider('player', 'dynamic', 'box', 10, 10))
   163→  self.collider:set_gravity_scale(0)
   164→  self.collider:set_fixed_rotation(true)

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   418→    end
   419→    if closest then
   420→      local target_r = math.angle_to_point(self.x, self.y, closest.x, closest.y)
   421→      local t = closest_d > 200 and 1/(1 + (closest_d - 200)*(closest_d - 200)/200) or 1
   422→      self.r = math.lerp_angle_dt(self.homing_convergence*t, self.homing_duration, dt, self.r, target_r)
   423→    end
   424→  end
   425→
   426→  -- Linear returning
   427→  if self.returning and not self.returning_arc then
   428→    local d = math.distance(self.origin_x, self.origin_y, self.x, self.y)
   429→    if not self.returning_phase then
   430→      if d >= self.returning then
   431→        self.returning_phase = true
   432→        self.returning_apex_x, self.returning_apex_y = self.x, self.y
   433→        self.speed_mult = 0.1
   434→        self.visual_spin = 0
   435→        self.timer:tween(0.3, self, {visual_spin = an.random:choice({-1, 1})*2*math.pi}, math.cubic_out)
   436→      elseif d >= self.returning*0.8 then
   437→        self.speed_mult = math.remap(d, self.returning*0.8, self.returning, 1, 0.1)
   438→      end
   439→    end
   440→    if self.returning_phase then
   441→      self.r = math.angle_to_point(self.x, self.y, p1.x, p1.y)
   442→      local apex_d = math.distance(self.returning_apex_x, self.returning_apex_y, self.x, self.y)
   443→      local accel_range = self.returning*0.2
   444→      if apex_d < accel_range then
   445→        self.speed_mult = math.remap(apex_d, 0, accel_range, 0.1, 1)
   446→      else
   447→        self.speed_mult = 1

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File does not exist. Note: your current working directory is E:\a327ex.

<tool_use_error>Sibling tool call errored</tool_use_error>

<tool_use_error>Sibling tool call errored</tool_use_error>

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E:\a327ex\Orblike\implemented.md

     1→# ORBS Coverage Set
     2→
     3→Minimal set of abilities + modifiers that maximizes coverage across all building block tables. Each entry is chosen to hit uncovered cells. The goal: implement these and you've exercised nearly every system the full game will need.
     4→
     5→---
     6→
     7→## Design Approach
     8→
     9→Each ability = one row from each table (Carrier, Activation, Targeting, Behavior, Hit Behavior, Effect). Pick abilities so the union of all rows covers the most cells. Allow carrier repeats only when the non-carrier cells are all new.
    10→
    11→Modifiers fill remaining gaps — especially hit behavior variants (pierce, split, bounce) and effect additions (slow, knockback, lifesteal) that naturally apply to many abilities.
    12→
    13→---
    14→
    15→## The 17 Abilities
    16→
    17→| # | Name | Carrier | Activation | Targeting | Behavior | Hit Behavior | Effect |
    18→|---|------|---------|------------|-----------|----------|--------------|--------|
    19→| 1 | Fireball | **Projectile** | Manual | Aimed direction | Instant | Consumed + Explode | Damage |
    20→| 2 | Chain Lightning | **Chain** | Manual | **Auto-target** | Instant | Chain (3 hops) | Damage + **Debuff** |
    21→| 3 | Brimstone | **Beam** | Manual | Aimed direction | **Hold-to-charge** | **Pierce** | Damage |
    22→| 4 | Scorching Ray | Beam | Manual | Aimed direction | **Channelled** | **Persistent contact** | Damage + **Stacking debuff** |
    23→| 5 | Frost Nova | **Area** | Manual | **Self** | Instant | — | Damage + **Soft CC** |
    24→| 6 | Meteor | Area | Manual | **Aimed point** | **Delayed** | — | Damage + **Hard CC** |
    25→| 7 | Poison Pool | **Zone** | Manual | Aimed point | **Duration** | Persistent contact | **DoT** |
    26→| 8 | Blade Vortex | **Orbit** | **Passive** | Self | **Permanent** + **Recurring** | Persistent contact | Damage |
    27→| 9 | Cleave | **Melee** | Manual | Aimed direction | Instant | — | Damage + **Displacement** |
    28→| 10 | Burning Aura | **Aura** | Manual | Self | **Toggle** | Persistent contact | Damage |
    29→| 11 | Storm Brand | **Attached** | Manual | **Targeted enemy** | Duration + Recurring | — | Damage |
    30→| 12 | Bear Trap | **Trap** | Manual | Aimed point | Duration (dormant) | Explode | Damage + Hard CC |
... [422 more lines]

The file E:\a327ex\Orblike\implemented.md has been updated successfully.

File created successfully at: E:\a327ex\Orblike\to_implement.md

   150→  self.current_ability = 'fireball'
   151→
   152→  args = args or {}
   153→  self.spreading_multiple_projectiles = args.spreading_multiple_projectiles
   154→  self.parallel_multiple_projectiles = args.parallel_multiple_projectiles
   155→  self.backshot = args.backshot
   156→  self.sideshots = args.sideshots
   157→  self.nova = args.nova
   158→  self.pierce = args.pierce
   159→  self.lesser_returning = args.lesser_returning
   160→  self.returning = args.returning
   161→  self.greater_returning = args.greater_returning
   162→  self.returning_arc = args.returning_arc
   163→
   164→  self:add(collider('player', 'dynamic', 'box', 10, 10))
   165→  self.collider:set_gravity_scale(0)
   166→  self.collider:set_fixed_rotation(true)
   167→  self.collider:set_position(self.x, self.y)
   168→
   169→  self:add(timer())

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   296→  if self.current_ability == 'fireball' then
   297→    for _, shot in ipairs(shots) do
   298→      an:add(projectile(shot.x, shot.y, {ability = 'fireball', color = self.color, r = shot.r, pierce = self.pierce, lesser_returning = self.lesser_returning, returning = self.returning, greater_returning = self.greater_returning, returning_arc = self.returning_arc}))
   299→    end
   300→    sfx('fireball_fire', volumes.fireball_fire)
   301→  end
   302→
   303→  an.camera.shake:push(r, 3)
   304→  self.spring:pull('shoot', 0.25)
   305→  self.flashing = true

The file E:\a327ex\Orblike\main.lua has been updated successfully.

   325→-- Projectile carrier
   326→projectile = object:extend()
   327→function projectile:new(x, y, args)
   328→  object.new(self)
   329→  self:tag('projectile')
   330→  self.x, self.y = x, y
   331→  self.r = args.r or 0
   332→  self.ability = args.ability
   333→  self.color = args.color
   334→  self.w = 10
   335→  self.h = 4
   336→  self.speed = 190
   337→  self.damage = 1
   338→  self.flashing = false
   339→

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[
  {
    "type": "text",
    "text": "The complete research document has been written to `E:\\a327ex\\reference\\star-of-providence-research.md` and opened in NeoVim with MarkdownPreview. Here is a summary of what was found:\n\n---\n\n**Star of Providence** (originally \"Monolith\") is a twin-stick bullet hell roguelike by Team D-13, published by Bigmode. It has 96% positive reviews on Steam. Runs last ~30 minutes.\n\n### What the document covers in full detail:\n\n**Weapons System** -- 14 base weapon types (Peashooter, Charge, Vulcan, Laser, Fireball, Revolver, Pulsar, Drill, Sword, Railgun, Spear, Thunderhead, Razor, Runic), each with base damage, ammo, shot velocity, shot delay, and detailed mechanical descriptions. 6 are default, 8 must be purchased from the hub shop.\n\n**57 Unique Weapons** -- Named variants of each weapon type with completely custom mechanics. Examples: Crimson Lotus (drill that grants invincibility), Phantom Edge (screen-wide invisible slashes), Black Hole (gravity wells that suck enemies), Hand of the First (transforms into a different unique weapon every room), Council's Blessing (captures enemies who then fight for you).\n\n**50+ Keywords (Weapon Modifiers)** -- Full table of every keyword including 6 universal ones (Freeze, Akashic, Antimagic, Consecrated, Disrupting, Infested) and all non-universal ones (Homing, Piercing, Ricochet, Split, Chain Lightning, Phasing, Triple, Shotgun Style, Gatling, Execute, Burst, Backshot, Swarming, and many more), with which weapons each applies to.\n\n**7 Curse Types** -- Cursed weapons give permanent +5% damage and +2 HP but bind you with a negative effect (restricted aim, wall damage, doubled damage taken, etc.).\n\n**19 Upgrades** -- Complete table with effects and restrictions per ship.\n\n**63 Cartridges (Passive Items)** -- Documented ~42 of them with effects (Calculator, Mining Hat, Magic Shield/Sword/Rod/Pack conditional effects, Contract ally, Crackshot dash-shot, etc.).\n\n**7 Blessings** -- One-at-a-time powerful passives from Reliquaries.\n\n**10 Power Bomb types** -- Each with unique tactical effects (Mirror Bomb reflects bullets, Gold Bomb converts bullets to money, Energy Bomb gives stacking damage/speed).\n\n**35+ Active Items** -- Arena Blaster's bomb replacement system with full charge costs and effects.\n\n**6 Playable Ships** -- Each fundamentally changes how you interact with game systems: Null (standard), D-13 (hard mode), Arena Blaster (active items replace bombs), Chaos (weapon changes every room), Skully (module grid system replaces weapons), Armsmaster (dual-wield, no bombs).\n\n**Enemy System** -- 120+ enemies across 5 subtypes (Undead, Machines, Mages, Constructs, Creatures), with keyword vulnerability system (+35% damage with the right keyword). Notable enemy behaviors documented.\n\n**35 Bosses** -- Organized by floor with phase counts. Special bosses include Overlord (3-stage main boss), Monolith (true final boss, no contact damage, extremely fast), Database (4-phase secret boss), Warden (variable phases based on Temple candles), Chaosgod.\n\n**7 Floors + Temple + Secret Floor** -- Full progression structure, Temple risk/reward system (candle mechanics), Floor 7 \"Nowhere\" secret.\n\n**Room Types** -- 20+ room types including combat, shops, Breach Rooms (peashooter-only challenges), Reliquaries, Arcades, Vaults.\n\n**Gauntlet and Trials** -- Challenge mode systems with unique enemies and perfect-clear rewards.\n\n**20 Notable Design Choices** -- Uncommon mechanics including the salvage economy, score-as-currency, HP part overflow, breach rooms, environmental destruction differentiation, conditional Magic cartridges, and the lethality system (higher difficulty = more fragile player but more powerful, not harder enemies).\n\nSources:\n- [Star of Providence Wiki](https://starofprovidence.wiki.gg/)\n- [Star of Providence on Steam](https://store.steampowered.com/app/603960/Star_of_Providence/)\n- [Nick's Basic StarProv Manual](https://steamcommunity.com/sharedfiles/filedetails/?id=3426636070)\n- [The Nuances of Monolith Guide](https://steamcommunity.com/sharedfiles/filedetails/?id=951647411)\n- [Rogueliker Review](https://rogueliker.com/star-of-providence-review/)\n- [Digital Chumps Review](https://digitalchumps.com/star-of-providence-pc-review/)\n- [Bigmode Page](https://bigmode.com/games/star-of-providence)\n- [Steam Community Discussions](https://steamcommunity.com/app/603960/discussions/)"
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     1→# Ability Reference
     2→
     3→Mechanical descriptions of abilities across games, for ORBS system design. Descriptions focus on logic — triggers, delivery, targeting, hit behavior, special mechanics. No numbers, just how things work.
     4→
     5→---
     6→
     7→# Path of Exile
     8→
     9→## Active Skill Gems
    10→
    11→### Projectiles
    12→
    13→**Fireball**
    14→Spell, Projectile, AoE, Fire
    15→Fires a projectile in the targeted direction. On hitting an enemy or reaching max distance, it explodes in an area, dealing fire damage to all enemies in the radius. Can ignite.
    16→
    17→**Arc**
    18→Spell, Chaining, Lightning
    19→Fires a bolt of lightning at the nearest enemy in range. The bolt then chains to additional nearby enemies, with each chain seeking the closest valid target not yet hit. Damage reduces per chain. Can shock.
    20→
    21→**Freezing Pulse**
    22→Spell, Projectile, Cold
    23→Fires a projectile in the targeted direction. The projectile loses damage the further it travels, eventually dissipating at max range. Wider hitbox up close, narrower at range. Can freeze, with higher freeze chance at close range due to higher damage.
    24→
    25→**Ball Lightning**
    26→Spell, Projectile, AoE, Lightning
    27→Fires a slow-moving orb that travels in a line. The orb repeatedly hits enemies within its radius as it passes through them, dealing damage at a fixed interval. Each enemy can be hit multiple times by the same orb. Pierces all enemies — never consumed by hits.
    28→
    29→**Ethereal Knives**
    30→Spell, Projectile, Physical
... [170 more lines]

     1→# ORBS Ability Design Reference
     2→
     3→High-level building blocks for describing abilities. An ability is defined by choosing a carrier and one entry from each building block table. Some abilities combine multiple entries (noted with +).
     4→
     5→Detailed ability descriptions: `ability_reference.md`
     6→
     7→---
     8→
     9→## Carriers — The fundamental object of the ability
    10→
    11→The carrier is what the ability creates in the game world — the entity or phenomenon that delivers effects to targets. Different carriers have different **modifier surface area**: the number of meaningful ways they can be changed by modifiers. Higher surface means more build diversity potential.
    12→
    13→**Design principle:** The most compositionally rich abilities deviate from "standard" carrier defaults on 1–2 axes while keeping other axes standard. The standard axes are where modifiers attach; the deviation is what gives the ability its identity.
    14→
    15→| Carrier | Description | Composability | Examples |
    16→|---------|-------------|---------------|---------|
    17→| Projectile | Discrete entity traveling through space | Very High — trajectory, count, and hit behavior all independently modifiable | Fireball, Ezreal Q, Sven Storm Hammer |
    18→| Zone | Persistent region at a location, ticks over time | High — tick rate, duration, stacking, spatial mods | Caustic Arrow, Teemo mushroom, Gasoline |
    19→| Trap | Dormant zone that activates on a condition | High — zone properties plus conditional activation layer | Techies mines, PoE traps/mines, Teemo shroom |
    20→| Area | Instant region of effect at a point | High — inherent multi-hit, size/shape/cascade mods | Crystal Nova, Centaur Stomp, Reverse Polarity |
    21→| Melee | Close-range hit or swing | Medium-High — attack speed × on-hit, splash is transformative | Nasus Q, Loader punch, Mercenary Laser Sword |
    22→| Orbit | Entities circling a unit at fixed radius | Medium-High — count × orbit speed, passive offense | Blade Vortex, Sacrificial Dagger, Pretty Fly |
    23→| Beam | Instant or persistent line, no travel time | Medium-High — sweep, tick rate, width/length; pathing via Bezier curves | Brimstone, Lux R, Technology, Railgunner |
    24→| Chain | Effect jumping between nearby targets | Medium — event multiplication, compounds with on-hit | Arc, Chain Frost, Mystic Snake, Ukulele |
    25→| Attached | Effect stuck to a target, pulses autonomously | Medium — tick × chain × duration, fire-and-forget | Storm Brand, Explosivo |
    26→| Aura | Persistent field attached to a unit, moves with it | Medium — movement speed = coverage, "I am the zone" | Righteous Fire, Frost Relic, Blasphemy |
    27→| Targeted | Point-and-click effect, no spatial object | Medium-Low — reliable, composes through effect/trigger only | Doom, Hex, Orchid, Finger of Death |
    28→| Trail | Effect along the caster's movement path | Low-Medium — movement-dependent, narrow but unique | Pencil (EBB), Toxic Trail |
    29→| Tether | Persistent connection between two entities | Low-Medium — relational, conditional, niche | Io Tether, Morgana R Soul Shackles |
    30→| Summon | Autonomous mobile entity | Low direct, Very High inherited — recursively compositional | Raise Zombie, The Backup drones, Happiest Mask |
... [535 more lines]

   200→- **Non-Universal Keywords**: Split, Align, Triple, Piercing, Homing, Wider Spray, Shotgun Style, Chain Lightning, Backshot, Swarming, Execute, Erupt
   201→
   202→#### Drill
   203→- **Base Damage**: 95
   204→- **Max Ammo**: 80
   205→- **Shot Velocity**: 4 (accelerates to 7)
   206→- **Shot Delay**: 55 frames (0.92s)
   207→- **Notes**: Hold fire to deploy drill in front of player (drains 2 ammo/second). Pierces enemies and walls. Drags non-stationary enemies along with it. Release to launch forward as piercing, semi-phasing projectile. Cooldown after launch.
   208→- **Non-Universal Keywords**: Drag, Backblast, Homing, Backshot, Triple, Pulsewaves
   209→
   210→#### Sword
   211→- **Base Damage**: 70 (melee), 35 (projectile)
   212→- **Max Ammo**: 125
   213→- **Shot Velocity**: 0
   214→- **Shot Delay**: 32 frames (0.53s)
   215→- **Notes**: Primarily melee weapon with a cone attack. Can destroy small bullets with the slash zone. Still fires a projectile with each slash. Requires getting close.
   216→- **Non-Universal Keywords**: Heavy, Quick, Bloodlust, Knockback, Reflective, Lunge, Triple, Giant, Overheat, Pulsewaves, Overclock
   217→
   218→#### Railgun
   219→- **Base Damage**: 125
   220→- **Max Ammo**: 70
   221→- **Shot Velocity**: 3 (fast beam)
   222→- **Shot Delay**: 60 frames (1s)
   223→- **Notes**: High damage beam. Accuracy depends on charge time (green converging lines show accuracy cone). Only pierces when fully charged. Auto-fires with perfect accuracy when lines converge. Infinite piercing by default.
   224→- **Non-Universal Keywords**: Homing, Backblast, Ricochet, Phasing, Charges Faster, Overclock
   225→
   226→#### Spear
   227→- **Base Damage**: 40 (+16 damage over 2 seconds)
   228→- **Max Ammo**: 150
   229→- **Shot Velocity**: 12
... [170 more lines]

   400→33. **Maelstrom** - Two-stage charge: normal slash, enlarged slash with more damage, or full charge triggering room-wide slashes.
   401→34. **Ace of Swords** - Twinshooter, Overclock. Fires 2 small sword projectiles; stop firing to charge bigger piercing shots that delete bullets. Dropped by Ace's second phase (requires perfect Gauntlet clear).
   402→35. **Sacred Arms** - Large sword and staff; player controls sword while staff fires independently; both use ammo. Power increases per Warden phases fought in Temple.
   403→36. **Edge of Reality** - Sword and projectile pierce walls and enemies; destroys bullets longer after swing; charges by killing enemies; opens a void that grabs enemies for massive damage. Requires Temple Tier 4.
   404→
   405→### Railgun-Type Uniques (4)
   406→
   407→37. **Sveela** - Overheat, Shrapnel, Knockback. Railgun with overheat that drags enemies along with the shot.
   408→38. **Zephyr** - Sharpshooter, Piercing. Enemies have a weak spot; shots through the weak spot do double damage; pierces once.
   409→39. **Solaris** - Higher damage railgun with bigger area effect and slower fire rate; goes through walls.
   410→40. **Soulfury** - Phasing, Homing, Shotgun Style. Longer charge time firing up to 5 shots; phase through walls, home onto enemies, travel between multiple enemies repeatedly.
   411→
   412→### Spear-Type Uniques (4)
   413→
   414→41. **Longinus** - All Pierce, Phasing, High-Caliber. Normal spear behavior with more damage, less ammo; pierces all enemies and walls.
   415→42. **Thousand Needles** - Wider Spray, Gatling, Rupture. Shoots many smaller spears rapidly with mild inaccuracy.
   416→43. **Painstaker** - High-Caliber, Pin. Heavy knockback that pins enemies to walls, preventing movement.
   417→44. **Stinger** - Two spears idle next to player; fire toward separate or same enemies; hitting same enemy deals additional damage and refreshes spears faster.
   418→
   419→### Thunderhead-Type Uniques (4)
   420→
   421→45. **Corona** - Holy, All Pierce. Thunderhead orbs with a railgun-like laser from core; travels slower; automatically blessed.
   422→46. **Black Hole** - Shoots black holes that suck in most non-stationary enemies; slows on impact; goes through walls.
   423→47. **Gorynich** - Chariot, Chain Lightning, Continuous. Travels short distance aligned with player while fire held; goes through walls; lightning connects multiple enemies.
   424→48. **Gathering Storm** - Absorb. Fires dwindling thunderheads that stop after a moment; firing into each other makes them grow; bigger ones dwindle slower.
   425→
   426→### Razor-Type Uniques (4)
   427→
   428→49. **Iron Fist** - High-Caliber, Knockback. Replaces razors with two spiked balls dealing heavy area damage; fires slower; deals knockback; pierces shields.
   429→50. **The Claw** - Latches onto enemy dealing damage over time; won't disconnect through walls; can steal/reduce shop item costs; uses significant ammo.
... [170 more lines]

   600→| **Gold Bomb** | Converts enemy bullets to money | Score 200,000+; 60,000G |
   601→| **Energy Bomb** | +5% damage and speed per bomb held (stacking passive) | Win Floor 6+ on Intense/Sudden Death; 70,000G |
   602→| **Mirror Bomb** | Reflects all bullets in the opposite direction | Purchase Mirror at Hub; 50,000G |
   603→
   604→---
   605→
   606→## Active Items (Arena Blaster)
   607→
   608→Arena Blaster replaces bombs with a charge meter system. Active items consume charges. All attacking actives scale with the player's damage stat.
   609→
   610→| Active Item | Charges | Effect |
   611→|-------------|---------|--------|
   612→| **Ancient Runestone** | 6 | 8-second invulnerability |
   613→| **Blazing Wrath** | 3 | 10 seconds contact-damage immunity + dealing contact damage; dash releases flame burst |
   614→| **Capital Investment** | 6 | Creates a shop room (single use) |
   615→| **Cleanup Crew** | 5 | Spawns 5 temporary Wiseguys allies |
   616→| **Cracked Blade** | 6 | +5% permanent damage; chance to break on use |
   617→| **Crystallized Light** | 6 | Deadly non-homing light beams from above |
   618→| **Delivery Drone** | 6 | Restocks all items in shops |
   619→| **Demon's Claw** | 5 | Fire ball that spreads fire bullets from walls |
   620→| **Demolition Charge** | 5 | Grenade that destroys enemies/walls; sticks to enemies |
   621→| **Excavation Kit** | 4 | Creates new rooms |
   622→| **Focusing Lens** | 4 | High-damage directional laser |
   623→| **Glacial Shard** | 4 | Creates room icicles; player immune while equipped |
   624→| **Golden Gun** | 6 | Single ultra-high-damage shot (~Overlord phase 1 health). Single use - destroyed after firing. |
   625→| **Grim Idol** | 6 | Spawns a random cursed weapon |
   626→| **Haunted Blaster** | 3 | Homing phasing bullet; wall-piercing on kills; auto-chains through enemies |
   627→| **Hellfire Barrage** | 12 | Room-covering explosions; kills most enemies; clears bullets |
   628→| **Hunter Array** | 4 | Homing phasing railgun bursts in all directions; instant hits |
   629→| **King's Ransom** | 4 | Gold bullet; +25% debris on kill |
... [170 more lines]

   800→### Floor 2: Archives
   801→
   802→| Boss | Phases | Notes |
   803→|------|--------|-------|
   804→| **Daemon** | 1 | (details limited) |
   805→| **Presence** | Multi-phase | Changes attack patterns as health depletes |
   806→| **Behemoth** | 1 | (details limited) |
   807→| **Charlie** | 1 | (details limited) |
   808→
   809→### Floor 3: Maintenance System
   810→
   811→| Boss | Phases | Notes |
   812→|------|--------|-------|
   813→| **Devourer** | 2 stages | Changes attack patterns |
   814→| **Ice Wyrm** | Multi-phase | Changes attack patterns |
   815→| **Armor Tac** | 2 stages | Changes attack patterns |
   816→| **Fish** | 1 | (details limited) |
   817→
   818→### Floor 4: Bellows
   819→
   820→| Boss | Phases | Notes |
   821→|------|--------|-------|
   822→| **Reactor** | 1 | (details limited) |
   823→| **Firewall** | Multi-phase | Changes attack patterns |
   824→| **Ordinator** | Multi-phase | Changes attack patterns |
   825→| **Nightmare** | 2 stages | (details limited) |
   826→
   827→### Floor 5: Sanctum
   828→
   829→| Boss | Phases | Notes |
... [170 more lines]

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     1→# Star of Providence - Complete Research
     2→
     3→**Developer:** Team D-13
     4→**Publisher:** Bigmode
     5→**Originally released as:** Monolith (2017)
     6→**Rebranded/updated:** Star of Providence (2025, "Into Oblivion" update)
     7→**Platforms:** PC (Steam), Nintendo Switch
     8→**Genre:** Twin-stick bullet hell roguelike
     9→**Run length:** ~30 minutes
    10→**Reception:** 96% positive on Steam (2,637 reviews)
    11→
    12→---
    13→
    14→## Table of Contents
    15→
    16→1. [Core Mechanics](#core-mechanics)
    17→2. [Playable Ships](#playable-ships)
    18→3. [Weapons System](#weapons-system)
    19→4. [Keywords (Weapon Modifiers)](#keywords-weapon-modifiers)
    20→5. [Unique Weapons](#unique-weapons)
    21→6. [Cursed Weapons](#cursed-weapons)
    22→7. [Blessed Weapons](#blessed-weapons)
    23→8. [Upgrades](#upgrades)
    24→9. [Cartridges (Passive Items)](#cartridges-passive-items)
    25→10. [Blessings](#blessings)
    26→11. [Bombs and Power Bombs](#bombs-and-power-bombs)
... [22 more lines]

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     1→# Ability Reference
     2→
     3→Mechanical descriptions of abilities across games, for ORBS system design. Descriptions focus on logic — triggers, delivery, targeting, hit behavior, special mechanics. No numbers, just how things work.
     4→
     5→---
     6→
     7→# Path of Exile
     8→
     9→## Active Skill Gems
    10→
    11→### Projectiles
    12→
    13→**Fireball**
    14→Spell, Projectile, AoE, Fire
    15→Fires a projectile in the targeted direction. On hitting an enemy or reaching max distance, it explodes in an area, dealing fire damage to all enemies in the radius. Can ignite.
    16→
    17→**Arc**
    18→Spell, Chaining, Lightning
    19→Fires a bolt of lightning at the nearest enemy in range. The bolt then chains to additional nearby enemies, with each chain seeking the closest valid target not yet hit. Damage reduces per chain. Can shock.
    20→
    21→**Freezing Pulse**
    22→Spell, Projectile, Cold
    23→Fires a projectile in the targeted direction. The projectile loses damage the further it travels, eventually dissipating at max range. Wider hitbox up close, narrower at range. Can freeze, with higher freeze chance at close range due to higher damage.
    24→
    25→**Ball Lightning**
    26→Spell, Projectile, AoE, Lightning
    27→Fires a slow-moving orb that travels in a line. The orb repeatedly hits enemies within its radius as it passes through them, dealing damage at a fixed interval. Each enemy can be hit multiple times by the same orb. Pierces all enemies — never consumed by hits.
    28→
    29→**Ethereal Knives**
    30→Spell, Projectile, Physical
... [470 more lines]

     1→# ORBS Ability Design Reference
     2→
     3→High-level building blocks for describing abilities. An ability is defined by choosing a carrier and one entry from each building block table. Some abilities combine multiple entries (noted with +).
     4→
     5→Detailed ability descriptions: `ability_reference.md`
     6→
     7→---
     8→
     9→## Carriers — The fundamental object of the ability
    10→
    11→The carrier is what the ability creates in the game world — the entity or phenomenon that delivers effects to targets. Different carriers have different **modifier surface area**: the number of meaningful ways they can be changed by modifiers. Higher surface means more build diversity potential.
    12→
    13→**Design principle:** The most compositionally rich abilities deviate from "standard" carrier defaults on 1–2 axes while keeping other axes standard. The standard axes are where modifiers attach; the deviation is what gives the ability its identity.
    14→
    15→| Carrier | Description | Composability | Examples |
    16→|---------|-------------|---------------|---------|
    17→| Projectile | Discrete entity traveling through space | Very High — trajectory, count, and hit behavior all independently modifiable | Fireball, Ezreal Q, Sven Storm Hammer |
    18→| Zone | Persistent region at a location, ticks over time | High — tick rate, duration, stacking, spatial mods | Caustic Arrow, Teemo mushroom, Gasoline |
    19→| Trap | Dormant zone that activates on a condition | High — zone properties plus conditional activation layer | Techies mines, PoE traps/mines, Teemo shroom |
    20→| Area | Instant region of effect at a point | High — inherent multi-hit, size/shape/cascade mods | Crystal Nova, Centaur Stomp, Reverse Polarity |
    21→| Melee | Close-range hit or swing | Medium-High — attack speed × on-hit, splash is transformative | Nasus Q, Loader punch, Mercenary Laser Sword |
    22→| Orbit | Entities circling a unit at fixed radius | Medium-High — count × orbit speed, passive offense | Blade Vortex, Sacrificial Dagger, Pretty Fly |
    23→| Beam | Instant or persistent line, no travel time | Medium-High — sweep, tick rate, width/length; pathing via Bezier curves | Brimstone, Lux R, Technology, Railgunner |
    24→| Chain | Effect jumping between nearby targets | Medium — event multiplication, compounds with on-hit | Arc, Chain Frost, Mystic Snake, Ukulele |
    25→| Attached | Effect stuck to a target, pulses autonomously | Medium — tick × chain × duration, fire-and-forget | Storm Brand, Explosivo |
    26→| Aura | Persistent field attached to a unit, moves with it | Medium — movement speed = coverage, "I am the zone" | Righteous Fire, Frost Relic, Blasphemy |
    27→| Targeted | Point-and-click effect, no spatial object | Medium-Low — reliable, composes through effect/trigger only | Doom, Hex, Orchid, Finger of Death |
    28→| Trail | Effect along the caster's movement path | Low-Medium — movement-dependent, narrow but unique | Pencil (EBB), Toxic Trail |
    29→| Tether | Persistent connection between two entities | Low-Medium — relational, conditional, niche | Io Tether, Morgana R Soul Shackles |
    30→| Summon | Autonomous mobile entity | Low direct, Very High inherited — recursively compositional | Raise Zombie, The Backup drones, Happiest Mask |
... [470 more lines]

     1→     1→# Star of Providence - Complete Research
     2→     2→
     3→     3→**Developer:** Team D-13
     4→     4→**Publisher:** Bigmode
     5→     5→**Originally released as:** Monolith (2017)
     6→     6→**Rebranded/updated:** Star of Providence (2025, "Into Oblivion" update)
     7→     7→**Platforms:** PC (Steam), Nintendo Switch
     8→     8→**Genre:** Twin-stick bullet hell roguelike
     9→     9→**Run length:** ~30 minutes
    10→    10→**Reception:** 96% positive on Steam (2,637 reviews)
    11→    11→
    12→    12→---
    13→    13→
    14→    14→## Table of Contents
    15→    15→
    16→    16→1. [Core Mechanics](#core-mechanics)
    17→    17→2. [Playable Ships](#playable-ships)
    18→    18→3. [Weapons System](#weapons-system)
    19→    19→4. [Keywords (Weapon Modifiers)](#keywords-weapon-modifiers)
    20→    20→5. [Unique Weapons](#unique-weapons)
    21→    21→6. [Cursed Weapons](#cursed-weapons)
    22→    22→7. [Blessed Weapons](#blessed-weapons)
    23→    23→8. [Upgrades](#upgrades)
    24→    24→9. [Cartridges (Passive Items)](#cartridges-passive-items)
    25→    25→10. [Blessings](#blessings)
    26→    26→11. [Bombs and Power Bombs](#bombs-and-power-bombs)
    27→    27→12. [Active Items (Arena Blaster)](#active-items-arena-blaster)
    28→    28→13. [Pickups and Economy](#pickups-and-economy)
    29→    29→14. [Enemy Types and Subtypes](#enemy-types-and-subtypes)
    30→    30→15. [Minibosses](#minibosses)
... [470 more lines]

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   500→Aphelios carries five unique weapons, each with 50 ammo. He has a main-hand and off-hand weapon active simultaneously. His Q ability changes completely based on which weapon is in main hand. His R's secondary effect depends on the off-hand weapon. When a weapon's ammo depletes, it cycles to the back of the queue and the next weapon becomes available. Creates weapon-pair combinations — 5 weapons means 20 possible main/off-hand pairs, each playing differently.
   501→
   502→**Kayn passive — The Darkin Scythe**
   503→Kayn fills a meter through combat: damaging ranged champions fills one side, melee champions fills the other. Once a threshold is reached, Kayn permanently transforms into one of two forms — Shadow Assassin (bonus magic damage on abilities, brief combat stealth) or Rhaast (abilities heal based on damage dealt, R becomes a self-heal). A one-time permanent evolution that changes the champion's identity based on early-game choices.
   504→
   505→**Rengar passive — Unseen Predator**
   506→While in brush or camouflaged, Rengar's next auto-attack becomes a leap — he jumps to the target from extended range. Killing a unique enemy champion grants a permanent trophy that increases bonus AD. At max trophies, the leap also applies a short duration of bonus effects. Terrain-conditional auto-attack enhancement — brush becomes a combat advantage.
   507→
   508→### Unique Utility
   509→
   510→**Illaoi E — Test of Spirit** (covered above in Ally Interaction)
   511→
   512→**Kalista passive — Martial Poise**
   513→Every auto-attack, after the projectile launches, causes Kalista to perform a short dash in her current movement direction. She cannot cancel auto-attack animations — once the wind-up starts, the attack must complete before the dash. Creates a character whose auto-attacking and movement are fused — attacking IS moving. Orbwalking built into the kit.
   514→
   515→---
   516→
   517→# Dota 2
   518→
   519→## Abilities
   520→
...
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   500→- Pathing: homing, zigzag, spiral, returning, arcing
   501→- Count: fan, nova, parallel, burst
   502→- Size: growing, shrinking, larger, smaller
   503→- Phasing: terrain, friendlies, screen-wrapping
   504→- Speed: accelerating, decelerating
   505→
   506→**Pure hit behavior modifiers** change the contact mechanics themselves:
   507→- Pierce, absorb, diminishing, accelerating bounce, priority targeting
   508→- These modify HOW contact works, not what happens AFTER contact
   509→
   510→---
   511→
   512→## Classification Examples
   513→
   514→Showing how abilities from the reference are described using the tables. In the ORBS system, event-based activations (on-hit, on-kill, etc.) are links from Orb Zero, shown in the Activation column as "Orb Zero → [bridge type]."
   515→
   516→| Ability | Activation | Targeting | Carrier | Behavior | Hit Behavior | Effect |
   517→|---------|-----------|-----------|---------|----------|-------------|--------|
   518→| PoE Fireball | Manual | Aimed direction | Projectile | Instant | Consumed + Explode | Damage |
   519→| PoE Cyclone | Manual | Self | Aura | Channelled | Persistent contact | Damage |
   520→| PoE Arc | Manual | Auto-target | Chain | Instant | Chain | Damage |
   521→| PoE Essence Drain | Manual | Aimed direction | Projectile | Duration | Consumed | Damage over time + Heal |
   522→| PoE Raise Zombie | Manual | Aimed point | Summon | Permanent | — | Summon |
   523→| PoE Storm Brand | Manual | Aimed point | Attached | Duration + Recurring | Chain | Damage |
   524→| PoE Righteous Fire | Manual | Self | Aura | Permanent | Persistent contact | Damage + Damage over time |
   525→| PoE Blade Vortex | Manual | Self | Orbit | Duration + Recurring | Persistent contact | Damage |
   526→| PoE CWDT + Fireball | Orb Zero → Cast on Hit (incoming) + Accumulation | Auto-target | Projectile | Instant | Consumed + Explode | Damage |
   527→| LoL Ezreal Q | Manual | Aimed direction | Projectile | Instant | Consumed | Damage + Cooldown reset |
   528→| LoL Thresh Q | Manual | Aimed direction | Projectile | Mark-then-recast | Displace | Hard CC + Displacement |
   529→| LoL Karthus R | Manual | Global | Area | Channelled then Instant | — | Damage |
... [36 more lines]

   500→   500→| **Plating** | Max HP +1/3 (rounded down); recovers HP equal to the increase; prevents double-damage attacks once per room (1 damage instead). | Non-Mild lethalities only |
   501→   501→| **Quickening** | Single revival on death with 5 HP. Fires gigalasers dealing massive damage, grants permanent 15% damage increase. | Disabled on Sudden Death |
   502→   502→| **Reserves** | +10% damage (additive). Default weapon becomes 2x55% instead of 1x100%. For Chaos/Skully: only grants 10% damage. | No restrictions |
   503→   503→| **Salvage** | Double debris from weapon salvage. Alternating +1 HP or +5% max ammo. Unique weapon salvage grants extra +5% damage. | Unavailable for Chaos, Skully |
   504→   504→| **Scanner** | Reveals floor rooms on arrival. Shows shortcut contents and key locations once visible. Shows enemy HP bars. | No restrictions |
   505→   505→| **Scrap Runner** | Collecting debris increases speed and damage up to 30%; wears off quickly. Red meter shows duration. | No restrictions |
   506→   506→| **Second Wind** | Gain 10 HP, 100% ammo, max multiplier (3.0x). Excess health becomes HP parts. | Must purchase from Kleines first; disabled on Sudden Death |
   507→   507→| **Stealth** | Triples enemy activation delays; damage instantly activates enemies. | No restrictions |
   508→   508→| **Weatherproof** | Immunity to lightning, frost, icicles, spikes, electricity, water slowdown, and cold bullet effects. | No restrictions |
   509→   509→
   510→   510→---
   511→   511→
   512→   512→## Cartridges (Passive Items)
   513→   513→
   514→   514→63 total cartridges. Cannot be discarded once picked up. Permanent run-long effects.
   515→   515→
   516→   516→| Cartridge | Effect |
   517→   517→|-----------|--------|
   518→   518→| **13 Leaf Clover** | Better gambling shop odds |
   519→   519→| **Bandage** | +1 HP when entering new floors |
   520→   520→| **Battery** | Bombs recharge in 2 rooms instead of 3 |
   521→   521→| **Braveheart** | Chance of dropping a heart when taking damage |
   522→   522→| **Broken Mirror** | More common cursed weapons, but they break faster |
   523→   523→| **Bulwark** | Damage hits HP segments before max HP |
   524→   524→| **Calculator** | Doubled multiplier gain from kills |
   525→   525→| **Contract** | Gain gangster hermit ally (-20% debris); ally shoots while you attack |
   526→   526→| **Cool Sunglasses** | Shop appears on sixth floor |
   527→   527→| **Crackshot** | On dash, fire a revolver-shot at nearest enemy |
   528→   528→| **Credit Card** | Go into debt at shops (buy without enough money) |
   529→   529→| **Crowbar** | Crates cost less ammo to open |
... [470 more lines]

   999→   999→- Linear series of rooms with mini-bosses and bosses between them
  1000→  1000→- Each trial concludes with a final boss
  1001→  1001→- In addition to combat, may contain NPCs, pickups, puzzles, and other challenges
  1002→  1002→- Accessed through a purchasable "Mirror" in Kleines' shop
  1003→  1003→- **Trial V**: Straightforward brutal gauntlet, primarily bosses from Relics of the Past on Hard Mode Loop 7 difficulty. Plays on Intense lethality. Rooms between bosses have minimal hazards.
  1004→  1004→
  1005→  1005→### Boss Rush Mode
  1006→  1006→- Added in recent updates
  1007→  1007→- Contains surprises beyond standard boss fights
  1008→  1008→- New NPC throws you into challenge rooms
  1009→  1009→
  1010→  1010→---
  1011→  1011→
  1012→  1012→## Hacking Minigames
  1013→  1013→
  1014→  1014→Triggered by Plug cartridge at shops, weapon troves, and upgrade terminals. 5x5 tile field with a burning rope timer.
  1015→  1015→
  1016→  1016→| Type | Objective |
  1017→  1017→|------|-----------|
  1018→  1018→| **Collect** | Gather blue orbs while avoiding spikes and red blocks |
  1019→  1019→| **Block** | Ship in center with shield; block incoming flames from four directions |
  1020→  1020→| **Firewall** | Cross 3 fire-block lines without getting hit (sidescroll) |
  1021→  1021→| **Navigate** | Maze to reach blue orb; walls invisible except in 2-tile radius around ship |
  1022→  1022→| **Pick** | Two moving block lines; hit blue-orb blocks, avoid skull blocks |
  1023→  1023→| **Pick Highest/Lowest** | Select the highest or lowest number from eight adjacent numbers |
  1024→  1024→| **Survive** | Dodge bombs until timer ends |
  1025→  1025→
  1026→  1026→Difficulty increases timer speed and hazard speed. Success grants: 25% shop discount, better weapons in troves, extra upgrade option at terminals.
  1027→  1027→
  1028→  1028→---
... [93 more lines]

   500→   999→

   500→   999→

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   515→---
   516→
   517→# Dota 2
   518→
   519→## Abilities
   520→
   521→### Displacement
   522→
   523→**Pudge Q — Meat Hook**
   524→Long-range linear skillshot. On hitting a unit, it drags them all the way back to Pudge's location. Works on both enemies and allies — hooking an ally pulls them to safety, hooking an enemy pulls them into danger. Deals damage to enemies on contact. Passes through creeps with Aghanim's Scepter. The displacement is the full distance regardless of where the target was hit.
   525→
   526→**Vengeful Spirit R — Nether Swap**
   527→Instantly swaps positions with a target unit — ally or enemy. Both units are moved simultaneously to each other's former position. No damage, no CC — pure positional exchange. Can save an ally by swapping them out of danger (putting Vengeful in their place), or can pull an enemy out of position.
   528→
   529→**Tiny W — Toss**
   530→Grabs the nearest unit to Tiny (ally, enemy, or creep) and hurls them at a target unit or location. The thrown unit and enemies in the landing area take AoE damage. The grabbed unit has no control during flight. Can throw allies (with their consent or not) — enables throwing teammates into or out of fights.
   531→
   532→**Magnus R — Reverse Polarity**
   533→AoE centered on Magnus. All enemies in the area are pulled to Magnus's exact position and stunned. The pull is instant — enemies are displaced from wherever they stood in the radius to the center point. One of the strongest initiations in the game — a perfect RP can stack an entire team on one point.
   534→
   535→**Batrider R — Flaming Lasso**
   536→Grabs a target enemy and drags them behind Batrider as he moves. The target is stunned and helpless for the duration. Batrider can use movement abilities (Blink Dagger, Force Staff) while dragging, pulling the target along. The target goes wherever Batrider goes — the displacement distance is determined by how far Batrider travels during the lasso.
   537→
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     1→   515→---
     2→   516→
     3→   517→# Dota 2
     4→   518→
     5→   519→## Abilities
     6→   520→
     7→   521→### Displacement
     8→   522→
     9→   523→**Pudge Q — Meat Hook**
    10→   524→Long-range linear skillshot. On hitting a unit, it drags them all the way back to Pudge's location. Works on both enemies and allies — hooking an ally pulls them to safety, hooking an enemy pulls them into danger. Deals damage to enemies on contact. Passes through creeps with Aghanim's Scepter. The displacement is the full distance regardless of where the target was hit.
    11→   525→
    12→   526→**Vengeful Spirit R — Nether Swap**
    13→   527→Instantly swaps positions with a target unit — ally or enemy. Both units are moved simultaneously to each other's former position. No damage, no CC — pure positional exchange. Can save an ally by swapping them out of danger (putting Vengeful in their place), or can pull an enemy out of position.
    14→   528→
    15→   529→**Tiny W — Toss**
    16→   530→Grabs the nearest unit to Tiny (ally, enemy, or creep) and hurls them at a target unit or location. The thrown unit and enemies in the landing area take AoE damage. The grabbed unit has no control during flight. Can throw allies (with their consent or not) — enables throwing teammates into or out of fights.
    17→   531→
    18→   532→**Magnus R — Reverse Polarity**
    19→   533→AoE centered on Magnus. All enemies in the area are pulled to Magnus's exact position and stunned. The pull is instant — enemies are displaced from wherever they stood in the radius to the center point. One of the strongest initiations in the game — a perfect RP can stack an entire team on one point.
    20→   534→
    21→   535→**Batrider R — Flaming Lasso**
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     1→# ORBS Coverage Set
     2→
     3→Minimal set of abilities + modifiers that maximizes coverage across all building block tables. Each entry is chosen to hit uncovered cells. The goal: implement these and you've exercised nearly every system the full game will need.
     4→
     5→---
     6→
     7→## Design Approach
     8→
     9→Each ability = one row from each table (Carrier, Activation, Targeting, Behavior, Hit Behavior, Effect). Pick abilities so the union of all rows covers the most cells. Allow carrier repeats only when the non-carrier cells are all new.
    10→
    11→Modifiers fill remaining gaps — especially hit behavior variants (pierce, split, bounce) and effect additions (slow, knockback, lifesteal) that naturally apply to many abilities.
    12→
    13→---
    14→
    15→## The 17 Abilities
    16→
    17→| # | Name | Carrier | Activation | Targeting | Behavior | Hit Behavior | Effect |
    18→|---|------|---------|------------|-----------|----------|--------------|--------|
    19→| 1 | Fireball | **Projectile** | Manual | Aimed direction | Instant | Consumed + Explode | Damage |
    20→| 2 | Chain Lightning | **Chain** | Manual | **Auto-target** | Instant | Chain (3 hops) | Damage + **Debuff** |
    21→| 3 | Brimstone | **Beam** | Manual | Aimed direction | **Hold-to-charge** | **Pierce** | Damage |
    22→| 4 | Scorching Ray | Beam | Manual | Aimed direction | **Channelled** | **Persistent contact** | Damage + **Stacking debuff** |
    23→| 5 | Frost Nova | **Area** | Manual | **Self** | Instant | — | Damage + **Soft CC** |
    24→| 6 | Meteor | Area | Manual | **Aimed point** | **Delayed** | — | Damage + **Hard CC** |
    25→| 7 | Poison Pool | **Zone** | Manual | Aimed point | **Duration** | Persistent contact | **DoT** |
    26→| 8 | Blade Vortex | **Orbit** | **Passive** | Self | **Permanent** + **Recurring** | Persistent contact | Damage |
    27→| 9 | Cleave | **Melee** | Manual | Aimed direction | Instant | — | Damage + **Displacement** |
    28→| 10 | Burning Aura | **Aura** | Manual | Self | **Toggle** | Persistent contact | Damage |
    29→| 11 | Storm Brand | **Attached** | Manual | **Targeted enemy** | Duration + Recurring | — | Damage |
    30→| 12 | Bear Trap | **Trap** | Manual | Aimed point | Duration (dormant) | Explode | Damage + Hard CC |
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  1300→
  1301→**Royal Capacitor**
  1302→Call down a massive lightning strike on the targeted enemy, dealing devastating damage and briefly stunning all enemies near the impact. Single-target with AoE splash. Long cooldown. The highest single-target burst from any equipment.
  1303→
  1304→**Preon Accumulator**
  1305→After a brief charge, fire a slow-moving energy ball that pulls nearby enemies toward it as it travels. On reaching the target or after a duration, the ball detonates in a massive AoE explosion. Combines displacement (pull enemies in) with delayed burst (explosion). The pull clusters enemies for the detonation.
  1306→
  1307→**Disposable Missile Launcher**
  1308→Fire a barrage of twelve homing missiles that spread out and seek individual enemies. Each missile deals damage independently. The missiles distribute across available targets. A volley of autonomous seeking projectiles — fire once, twelve things die. No aiming required after activation.
  1309→
  1310→**Primordial Cube**
  1311→Fire a slow-moving gravity orb. On reaching the target point, the orb activates and pulls all nearby enemies toward its center for a duration. Enemies are helpless while being pulled. Does no damage itself — purely displacement. Clusters enemies for follow-up AoE. Setup tool for combos.
  1312→
  1313→**The Backup**
  1314→Summon four drone allies that orbit the player and fire at nearby enemies for a duration. The drones target autonomously and persist for the full duration. Temporary autonomous allies. Similar to Disposable Missile Launcher but sustained over time rather than a single burst.
  1315→
  1316→**Blast Shower**
  1317→Instantly cleanse all debuffs currently on the survivor. Additionally, all active on-hit debuffs (bleeds, burns, etc.) on nearby enemies are immediately detonated, dealing their remaining damage instantly. Defensive (self-cleanse) and offensive (detonate procs early) in one activation.
  1318→
  1319→**Sawmerang**
  1320→Throw a saw blade that travels outward, piercing and hitting all enemies in its path, then returns to the player. The blade hits enemies on both the outward and return trip. Piercing returning projectile — a boomerang that damages everything along its round trip.
  1321→
  1322→**Eccentric Vase**
  1323→Create two linked portals — one at the player's location, one at the aimed point. Stepping into either portal teleports to the other. Both portals persist for a duration. A two-way teleport pair. Can be used for instant repositioning or to create an escape route.
  1324→
  1325→**Forgive Me Please**
  1326→Throw a voodoo doll at a target location. The doll taunts nearby enemies (forces them to attack it) for a duration. When the doll expires or is destroyed, it counts as a "kill" for the purpose of all on-kill item effects. A fake target that triggers all your on-kill items when it expires — converts on-kill procs into an on-demand activation.
  1327→
  1328→**Gorag's Opus**
  1329→All allies (including drones, turrets, and other players) gain massive bonus attack speed and movement speed for a short duration. A team-wide offensive buff. In multiplayer, the value scales with the number of allies who benefit.
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  1383→On death, automatically revive with three seconds of invulnerability. Consumed on use — only works once. The simplest death prevention: die once, come back, then it's gone. The safety net that every build wants.
  1384→
  1385→---
  1386→
  1387→# Star of Providence
  1388→
  1389→Twin-stick bullet hell roguelike (Team D-13 / Bigmode). Compact rooms, 30-minute runs, 14 base weapon types with 50+ keyword modifiers. Weapons have finite ammo and break when depleted. Focus on weapon cycling (salvage economy) and keyword stacking.
  1390→
  1391→## Base Weapon Types
  1392→
  1393→Descriptions focus on mechanically novel weapons — those that introduce patterns not covered by the other five reference games.
  1394→
  1395→### Drill
  1396→Melee, Projectile, Pierce, Drag
  1397→Hold fire to deploy a drill entity directly in front of the player. The drill is persistent while held: it pierces enemies, passes through walls, and drags non-stationary enemies along with it, consuming ammo continuously. Release fire to launch the drill forward as a piercing, semi-phasing projectile. Cooldown after launch. Two-phase weapon: channelled melee-range carrier that transitions into a launched projectile on release.
  1398→
  1399→### Sword
  1400→Melee, Projectile, Bullet-block
  1401→Melee cone attack that also fires a projectile with each slash. The melee slash zone destroys small enemy bullets on contact, providing both offensive and defensive utility in the same swing. Requires close range. Dual-carrier weapon: melee hit + projectile generated simultaneously per activation.
  1402→
  1403→### Razor
  1404→Orbit, Projectile, Returning
  1405→Multiple circular blades orbit the player at fixed radius. Orbiting blades deal contact damage to enemies (consuming ammo). When fired, all blades leave the orbit, pierce through targets, then return to the player's orbit. The weapon alternates between a passive defensive/offensive orbit and an active ranged attack that depletes and replenishes the orbit. Orbit-to-projectile-to-orbit cycle.
  1406→
  1407→### Runic
  1408→Orbit, Projectile, Targeted
  1409→A ring of 12 runes manifests around the player. Runes only fire at locked-on (targeted) enemies — no lock, no fire. Damage splits among all locked targets. The ring conforms to nearby terrain geometry: near walls it compresses into a tighter formation, concentrating fire. Terrain-responsive orbit with lock-on targeting.
  1410→
  1411→### Thunderhead
  1412→Projectile, Chain, Slow

   125→| Explode | Creates an AoE burst at the impact point | Fireball explosion, Kinetic Blast, Brilliant Behemoth, Ipecac, Will-o'-the-Wisp |
   126→| Stick | Attaches to the target, detonates after a delay | Explosivo (Isaac), Sticky Bomb (RoR2) |
   127→| Displace | Moves the target on contact: pull, push, cluster | Pudge hook pull, Blitzcrank pull, Sentient Meat Hook clustering, Force Staff push |
   128→| Drag | Carrier drags enemies along its path continuously during travel | Drill (Star of Providence), Batrider Flaming Lasso (Dota, partially) |
   129→| Pin | Knockback that pins enemies to walls — root on wall contact | Painstaker spear Pin keyword (Star of Providence) |
   130→| Block | Destroys enemy projectiles on contact | Lost Contact tears (Isaac), Yasuo Wind Wall, Bot Fly, Pretty Fly |
   131→| Screen-wrap | Exits one edge, reappears on opposite side | Continuum (Isaac) |
   132→| Persistent contact | Repeatedly hits while targets remain in range | Ball Lightning (ticks at interval), Cyclone (hits per rotation), Righteous Fire aura |
   133→
   134→### Effect — What the ability does to targets
   135→
   136→| Effect | Description | Examples |
   137→|--------|-------------|---------|
   138→| Damage | Deals immediate damage | Most offensive abilities |
   139→| Damage over time | Applies recurring damage over a duration | Essence Drain, Poison Nova, Tri-Tip Dagger bleed, Acrid poison, Scorching Ray |
   140→| Heal | Restores health | Medkit, Harvester's Scythe, Essence Drain life leech |
   141→| Shield | Grants temporary damage absorption | Shen R shield, Topaz Brooch barrier, Personal Shield Generator |
   142→| Buff | Improves stats or capabilities | Ogre Bloodlust, Lulu Whimsy (ally), Gorag's Opus, Predatory Instincts |
   143→| Debuff | Reduces stats or resistances | Slardar Corrosive Haze, Combustion fire res, Symbiotic Scorpion armor, Scorching Ray stacking |
   144→| Hard CC | Target fully unable to act | Sven Storm Hammer stun, Bane Fiend's Grip suppress, Shadow Shaman Hex, Bard Tempered Fate stasis |

   235→| Zone → Migrating | Slowly drifts toward nearest enemy | — |
   236→| Pulsing | Oscillates between active/inactive states; charges up during inactive for stronger next pulse | PoE Elementalist, Shaper of Storms |
   237→| Expanding on kill | Radius temporarily increases when caster kills an enemy | — |
   238→
   239→**Orbit modifications:**
   240→
   241→| Modification | Description | Examples |
   242→|-------------|-------------|---------|
   243→| Fixed radius → Expanding/Contracting | Orbitals spiral outward (or inward) over time | — |
   244→| Orbit → Erratic/Random radius | Orbitals wobble unpredictably, increasing effective coverage | — |
   245→| Full circle → Front cluster (Chariot) | Orbitals rearranged from ring to forward-facing cluster | Chariot keyword (Star of Providence, Razor) |
   246→| Full circle → Line (Lance) | Orbitals arranged in a line extending forward from caster | Lance keyword (Star of Providence, Razor) |
   247→| Orbit → Fire all (Ringshot) | All orbitals fire simultaneously in current radial directions, creating nova burst | Ringshot keyword (Star of Providence, Razor) |
   248→| Orbit → Fire and Return | Orbitals leave orbit as projectiles, pierce targets, return to orbit | Razor base behavior (Star of Providence) |
   249→| Orbit → Instant Recall | Fired orbitals return to orbit immediately after reaching target | Instant Recall keyword (Star of Providence, Razor) |
   250→| Orbit → Shielded | Idle orbitals block enemy projectiles on contact; firing removes shield | Shielded keyword (Star of Providence, Razor) |
   251→| Orbit → Tethered (linked) | Lightning/damage arcs connect adjacent orbitals, creating damage web between them | Delta unique weapon (Star of Providence, Razor-type) |
   252→
   253→**Melee modifications:**
   254→
   255→| Modification | Description | Examples |
   256→|-------------|-------------|---------|
   257→| Melee → Extended reach (whip) | Significantly increases range while keeping instant-hit melee feel | — |
   258→| Melee → Afterimage | Each swing leaves a damaging ghost of the arc that persists briefly | Phantom Edge unique (Star of Providence, slashes at imperceptible speeds shown via grey lines) |
   259→| Melee → Lunge | Short dash toward target before hitting; bridges Melee and Movement | Lunge keyword (Star of Providence, Sword) |
   260→| Melee → Bullet-block | Melee arc destroys enemy projectiles on contact | Sword base behavior (Star of Providence) |
   261→| Melee → Reflect | Melee arc reflects enemy projectiles back at enemies | Reflective keyword (Star of Providence, Sword) |
   262→| Melee + Projectile | Each melee swing simultaneously spawns a projectile | Sword base behavior (Star of Providence, slash + projectile per swing) |
   263→
   264→**Attached (Brand) modifications:**

   455→| Modification | Description | Examples |
   456→|-------------|-------------|---------|
   457→| Player → Totem/Turret | Deployable entity casts instead of player | Spell Totem (PoE), Engineer turrets (RoR2) |
   458→| Player → Clone | A copy of the player fires the ability autonomously | Mirage Archer (PoE), Arc Warden Tempest Double (Dota), Incubus (Isaac) |
   459→| Ability replacement | Entire ability is replaced with a different one | Strides of Heresy (RoR2), Brimstone replacing tears (Isaac), Mom's Knife replacing tears (Isaac) |
   460→
   461→---
   462→
   463→## Meta-Modifiers — Trigger Bridges
   464→
   465→Many specific modifiers are actually composed of two independent pieces: a **trigger condition** (when does it fire?) and a **payload** (what fires?). In the ORBS system, these are expressed as **links between orbs** with **bridge types** — see the system design document for the full link system.
   466→
   467→This section documents how bridge types compose with modifiers to replace hardcoded abilities, and which modifiers decompose into bridges.
   468→
   469→### Bridge types (carrier events used in links)
   470→
   471→These are events on a source orb's carrier that trigger a linked target orb. They are NOT triggers (player/world events) — see the Trigger table for those.
   472→
   473→| Bridge | Carrier event | What it replaces when composed | Examples |
   474→|--------|--------------|-------------------------------|---------|
   475→| Cast on Hit | Carrier hits a target | Add explosion (→ Area), leave residue zone (→ Zone), tether on hit (→ Tether), melee → projectile on hit (→ Projectile) | Melee Splash (PoE), Brilliant Behemoth (RoR2) |
   476→| Cast on Crit | Carrier critically hits a target | — | Cast on Critical Strike (PoE) |
   477→| Cast on Kill | Carrier's damage kills a target | Chain reaction on kill (→ same ability), status spread on death (→ Debuff) | Ceremonial Dagger (RoR2) |
   478→| Cast on Expire | Carrier reaches end of life (max range, duration end) | Lingering projectile (→ Zone), beam terminus zone (→ Zone), orbit zone on detach (→ Zone), split on expire (→ Projectiles) | Toxic Rain pods (PoE) |
   479→| Cast on Death | Carrier entity destroyed prematurely (killed, not expired) | Summon explosive death (→ Area), summon on-death zone (→ Zone) | — |
   480→| Cast on Pierce | Carrier pierces through a target | Projectile → secondary payload at each pierce point | — |
   481→| Cast on Chain | Carrier chains/jumps to a new target | Chain → secondary effect at each hop landing | — |
   482→| Cast on Bounce | Carrier bounces off terrain | Projectile → payload at each wall bounce | — |
   483→| Detonate | Player manually consumes the carrier | Detonatable zone, detonatable brand, sacrificial summon, orbit detach-on-command | PoE mines (detonated manually), Detonator (Star of Providence, 6th shot detonates all sticky bombs) |
   484→| Cast on Transition | Carrier changes state (channel ends, tether breaks, toggle off) | Channel-then-release (→ payload on release) | Sand King Epicenter (Dota) |

   485→| Timer | Every N seconds while carrier exists; carrier persists | Flying bomber, periodic zone dropper | — |
   486→| Cast on Return Apex | Carrier reaches its turning point (max range of a returning carrier) | Explosion at apex, nova at turning point, zone creation at apex | — (ORBS-specific, see to_implement.md) |
   487→| Cast at Carrier | Another orb fires at each of this orb's active carrier instances | Ice Nova on Frostbolt pattern — target orb fires at each carrier position | Ice Nova on Frostbolt (PoE) |
   488→
   489→**Cast on Pierce, Cast on Chain, Cast on Bounce** multiply with hit behavior modifiers. Adding Pierce to a carrier means every pierce event fires a Cast on Pierce link — more pierce = more link activations.
   490→
   491→### How bridges compose
   492→
   493→Bridges can chain with other modifiers and even with each other:
   494→
   495→**Bridge + Carrier:** Summon → **Cast on Death** → Explode. The summon dies, it explodes. No need for a hardcoded "Sacrificial Summon" modifier.
   496→
   497→**Bridge + Bridge:** Projectile → **Cast on Hit** → Attached Brand → **Cast on Expire** → Area. The projectile hits, creates a brand, brand expires, creates an AoE. Two bridges, three carriers.
   498→
   499→### Modifier placement on links
   500→
   501→In the ORBS system, any modifier can be placed on a link instead of on an orb. When placed on a link, the modifier only applies to activations of the target orb that come through that specific link. This means:
   502→
   503→- Formation (nova) on an orb = always fires in nova pattern
   504→- Formation (nova) on a link = nova pattern only when triggered by that link's carrier events
   505→- Filter (crit only) on a link = link only fires on crit events from the source carrier
   506→
   507→This replaces the need for separate "link modifier" categories like Multicast, Formation, Divide — they're just regular modifiers scoped to a specific activation source.
   508→
   509→### Which existing modifiers decompose into bridges
   510→
   511→| Existing modifier | Decomposition |
   512→|---|---|
   513→| Add explosion (Hit Behavior) | Cast on Hit → Area |
   514→| Consumed → Stick (Hit Behavior) | Cast on Hit → Attached → Cast on Expire → Explode |
... [30 more lines]

   565→| Dota Io Tether | Manual | Targeted ally | Tether | Duration | — | Buff + Heal |
   566→| Isaac Brimstone | Manual | Aimed direction | Beam | Hold-to-charge | Pierce | Damage |
   567→| Isaac Tiny Planet | — (modifier) | — | Straight → Orbiting | — | — | — |
   568→| Isaac Cricket's Body | — (modifier) | — | — | — | Consumed → Split | — |
   569→| Isaac Spoon Bender | — (modifier) | — | Straight → Homing | — | — | — |
   570→| Isaac Ludovico | — (modifier) | — | Straight → Controllable | — | — | — |
   571→| RoR2 Ukulele | Orb Zero → Cast on Hit | Auto-target | Chain | Instant | Chain | Damage |
   572→| RoR2 Will-o'-the-Wisp | Orb Zero → Cast on Kill | Self (at kill location) | Area | Instant | Explode | Damage |
   573→| RoR2 Brilliant Behemoth | — (modifier) | — | — | — | Cast on Hit → Area | — |
   574→| RoR2 Engineer Turret | Periodic | Auto-target | Deployable | Permanent | — | Damage (inherits all items) |
   575→| RoR2 Frost Relic | Orb Zero → Cast on Kill | Self | Aura | Duration | Persistent contact | Damage |
   576→| Chaining Projectile | Manual | Aimed direction | Projectile | Instant | Chain → Consumed | Damage |
   577→| SoP Drill (held) | Manual | Aimed direction | Melee → Projectile | Channelled | Pierce + Drag | Damage + Displacement |
   578→| SoP Razor (orbit) | Passive | Self | Orbit | Permanent | Persistent contact | Damage |
   579→| SoP Razor (fired) | Manual | Aimed direction | Orbit → Projectile | Instant | Pierce → Return to orbit | Damage |
   580→| SoP Spear | Manual | Aimed direction | Projectile → Attached | Duration | Consumed → Embed (stick) | Damage + DoT (stacking) |
   581→| SoP Thunderhead | Manual | Aimed direction | Projectile (relay) | Duration | — (harmless carrier) | Chain → Damage (via tether) |
   582→| SoP Detonator | Manual | Aimed direction | Projectile | Duration (dormant) | Stick | Damage (on Detonate) |
   583→| SoP Gathering Storm | Manual | Aimed direction | Projectile | Duration | Absorb (carrier-to-carrier) | Damage |
   584→| SoP Visitor's Echo | Passive | Self | Clone (delayed) | Permanent | — | Damage (clone's projectiles) |
   585→
   586→---
   587→
   588→## Design Checklist
   589→
   590→When designing a new ability, verify:
   591→
   592→1. **Carrier** — Which carrier type? Is it compositionally rich enough for the role this ability needs to play in builds?
   593→2. **Activation** — Is the activation clear? Manual, Passive, Periodic, or event-based (link from Orb Zero or another orb)? Does it create interesting timing decisions?
   594→3. **Targeting** — Does the targeting create skill expression or interesting choices?
... [7 more lines]

173:- **Non-Universal Keywords**: Crossbeam, Continuous, Pulsewaves, Charges Faster, Triple, Piercing, Ricochet, Phasing, Homing, Backblast, Shotgun Style
181:- **Non-Universal Keywords**: Shrapnel, Homing, Triple, Chain Lightning, Split, Shotgun Style, Backblast, Overheat, Overclock, Firelance, Swarming
208:- **Non-Universal Keywords**: Drag, Backblast, Homing, Backshot, Triple, Pulsewaves
216:- **Non-Universal Keywords**: Heavy, Quick, Bloodlust, Knockback, Reflective, Lunge, Triple, Giant, Overheat, Pulsewaves, Overclock
255:- **Notes**: Manifests a ring of 12 runes around the player. Lock onto enemies; runes only fire at locked targets. Damage splits among locked enemies. Ring closes near walls for focused fire. Ring respects terrain geometry.
322:| **Pulsewaves** | Radiates additional bullets outward | Laser, Drill, Sword |
330:| **Shrapnel** | Explodes into additional bullets on impact | Fireball |
331:| **Split** | Splits into multiple projectiles on impact | Vulcan, Revolver, Fireball, Pulsar, Runic, Thunderhead |
349:3. **Snowblower** - Shrapnel, Overheat, Freeze. Freezing charge shots; fully charged shot creates an ice projectile that splits into 12 smaller shots.
378:20. **Reventador** - Finale, Overheat, Shrapnel. Blazing bullets with overheat; last bullet deals extra damage and larger area effect.
399:32. **Latafayn** - Piercing, Overheat, Shrapnel. Longer melee range sword that shoots a fireball with large overheat effect.
407:37. **Sveela** - Overheat, Shrapnel, Knockback. Railgun with overheat that drags enemies along with the shot.
439:57. **Grasp of Entropy** - Locks onto enemies stealing souls; rapid damage glows white runes; full charge releases massive blast destroying bullets. Grants +2 MAX HP and +5% damage per blast. Absorbs runic attacks. Requires Temple Tier 4.
464:| **Curse of Paranoia** | Insubstantial enemy (Presence) spawns occasionally during combat (not vs bosses) |
535:| **Gun** | Random weapon spawns each floor (breaks if you leave without picking up) |
599:| **Swarm Bomb** | Releases large group of friendly blue Swarmers | Defeat Devourer; 130,000G |
613:| **Blazing Wrath** | 3 | 10 seconds contact-damage immunity + dealing contact damage; dash releases flame burst |
615:| **Cleanup Crew** | 5 | Spawns 5 temporary Wiseguys allies |
625:| **Grim Idol** | 6 | Spawns a random cursed weapon |
844:| **Database** | Floor 7 (Nowhere) | 4 phases with own health bars sharing similar attacks that increase in difficulty after each phase. Alternates regular attacks and difficult "overclocked" attacks. Spawns 3 unique minibosses between stages. Loop 13 features a new final phase. |
890:- Access: Integer Overflow cartridge (spawns a special secret room earlier in the run)
891:- Boss: Database (2+ stages, spawns 3 unique minibosses between stages)

35:Fires an arrow that travels to a targeted point, then spawns secondary projectiles that fly outward in all directions from that point. The initial arrow can hit enemies along its path. The secondary projectiles are independent and can each hit enemies.
500:Aphelios carries five unique weapons, each with 50 ammo. He has a main-hand and off-hand weapon active simultaneously. His Q ability changes completely based on which weapon is in main hand. His R's secondary effect depends on the off-hand weapon. When a weapon's ammo depletes, it cycles to the back of the queue and the next weapon becomes available. Creates weapon-pair combinations — 5 weapons means 20 possible main/off-hand pairs, each playing differently.
736:Fires a wave of fire in a line. Damages all enemies in its path. No CC, no secondary effect — pure line damage. Wide and long, easy to hit. The simplest form of a line nuke.
886:When a tear hits an enemy or obstacle, it releases several bone fragment projectiles in random directions. The fragments are short-lived and deal reduced damage. Creates a burst of secondary projectiles at each impact point — similar to Cricket's Body but with more fragments and shorter range.
1082:In RoR2, each survivor has a fixed kit of four abilities (primary, secondary, utility, special). The entire progression system is item-based — items drop from chests and stack, and most modify existing abilities through on-event triggers. Item stacking is the core loop: one Ukulele gives 25% chain lightning chance, ten Ukuleles gives 250%. Nearly every item interacts with every survivor's abilities.
1099:**Huntress — Secondary: Laser Glaive**
1115:**Engineer — Secondary: Pressure Mines**
1129:**Artificer — Secondary: Nano-Spear**
1159:**Loader — Secondary: Grapple Fist**
1292:Adds one extra charge to the secondary ability per stack. Two stacks means three total secondary charges. Pure charge stacking — doesn't change what the ability does, just how many times it can be used before needing to recharge. Ability resource multiplication.
1295:On kill, chance to drop an ammo pack that resets all ability cooldowns when picked up. Stacking increases drop chance. Full cooldown reset on pickup — secondary, utility, and special all come off cooldown. Kills potentially restore all ability charges, enabling ability spam during kill streaks.

    77→## The 12 Modifiers
    78→
    79→Modifiers that fill remaining table gaps and exercise the modifier application pipeline.
    80→
    81→| # | Name | Type | What it does | Table cells covered |
    82→|---|------|------|-------------|-------------------|
    83→| 1 | Homing | Carrier/Pathing | Carrier steers toward nearest target | Straight → Homing |
    84→| 2 | Multi-shot (fan) | Carrier/Count | Fires 3 copies in a spread pattern | Single → Multi (fan) |
    85→| 3 | Multi-shot (nova) | Carrier/Count | Fires copies in all directions | Single → Multi (nova) |
    86→| 4 | Returning | Carrier/Pathing | Carrier comes back after reaching max range | Straight → Returning |
    87→| 5 | Pierce | Hit Behavior | Carrier passes through targets instead of consuming | Consumed → Pierce |
    88→| 6 | Fork | Hit Behavior | Creates 2 sub-carriers on hit, angled outward | Consumed → Split |
    89→| 7 | Wall Bounce | Hit Behavior | Reflects off terrain | Consumed → Bounce (terrain) |
    90→| 8 | Explosion | Hit Behavior | Creates AoE burst at impact point | Add explosion on hit |
    91→| 9 | Slow on Hit | Effect | Hits reduce target movement speed | Add slow |
    92→| 10 | Knockback on Hit | Effect | Hits push target away from impact | Add knockback |
    93→| 11 | Lifesteal | Effect | Portion of damage dealt heals caster | Add resource on hit (heal) |
    94→| 12 | Larger Area | Size | Increases radius/area/width | Larger area |
    95→
    96→### What each modifier uniquely forces you to build

<persisted-output>
Output too large (50.7KB). Full output saved to: C:\Users\adn\.claude\projects\E--a327ex\2907abd0-8b1e-4635-aebf-09dd4cf25a3a\tool-results\toolu_01D7XkrRp6SjmXrFHsoWRFJY.txt

Preview (first 2KB):
     1→require('anchor')({width = 480, height = 270, scale = 3})
     2→
     3→gw, gh = an.width, an.height
     4→
     5→volumes = {
     6→  enemy_die = 0.8,
     7→  enemy_hit = 0.8,
     8→  fireball_fire = 0.45,
     9→  fireball_hit = 0.45,
    10→  enemy_spawn = 0.59,
    11→  player_hit = 0.39,
    12→}
    13→
    14→-- SNKRX palette
    15→bg_color = color(48, 48, 48)
    16→bg_off = color(46, 46, 46)
    17→fg_color = color(218, 218, 218)
    18→fg_alt = color(176, 168, 159)
    19→yellow = color(250, 207, 0)
    20→orange = color(240, 112, 33)
    21→blue = color(1, 155, 214)
    22→green = color(139, 191, 64)
    23→red = color(233, 29, 57)
    24→purple = color(142, 85, 158)
    25→blue2 = color(71, 120, 186)
    26→yellow2 = color(245, 159, 16)
... [42 more lines]

     1→     1→require('anchor')({width = 480, height = 270, scale = 3})
     2→     2→
     3→     3→gw, gh = an.width, an.height
     4→     4→
     5→     5→volumes = {
     6→     6→  enemy_die = 0.8,
     7→     7→  enemy_hit = 0.8,
     8→     8→  fireball_fire = 0.45,
     9→     9→  fireball_hit = 0.45,
    10→    10→  enemy_spawn = 0.59,
    11→    11→  player_hit = 0.39,
    12→    12→}
    13→    13→
    14→    14→-- SNKRX palette
    15→    15→bg_color = color(48, 48, 48)
    16→    16→bg_off = color(46, 46, 46)
    17→    17→fg_color = color(218, 218, 218)
    18→    18→fg_alt = color(176, 168, 159)
    19→    19→yellow = color(250, 207, 0)
    20→    20→orange = color(240, 112, 33)
    21→    21→blue = color(1, 155, 214)
    22→    22→green = color(139, 191, 64)
    23→    23→red = color(233, 29, 57)
    24→    24→purple = color(142, 85, 158)
    25→    25→blue2 = color(71, 120, 186)
    26→    26→yellow2 = color(245, 159, 16)
    27→    27→
    28→    28→palette = {fg_color, fg_alt, yellow, orange, blue, green, red, purple, blue2, yellow2}
    29→    29→
    30→    30→-- Physics
... [470 more lines]

   500→   500→      if math.distance(self.x, self.y, p1.x, p1.y) < 8 then
   501→   501→        p1.spring:pull('shoot', 0.2, 3, 0.5)
   502→   502→        p1.flashing = true
   503→   503→        p1.timer:after(0.1, 'flash', function() p1.flashing = false end)
   504→   504→        self:die()
   505→   505→        return
   506→   506→      end
   507→   507→    elseif self.returning_arc_turning then
   508→   508→      self.r = self.r + self.returning_arc_turn_rate*dt
   509→   509→    end
   510→   510→  end
   511→   511→
   512→   512→  local current_speed = self.speed*(self.speed_mult or 1)
   513→   513→  self.collider:set_velocity(current_speed*math.cos(self.r), current_speed*math.sin(self.r))
   514→   514→
   515→   515→  -- Wall-hit effect (boundary death disabled — final game will use solid walls)
   516→   516→  -- if self.x < 0 or self.x > gw or self.y < 0 or self.y > gh then
   517→   517→  --   an:add(hit_circle(self.x, self.y, {radius = 6, duration = 0.15}))
   518→   518→  --   for i = 1, 2 do
   519→   519→  --     an:add(hit_particle(self.x, self.y, {velocity = an.random:float(50, 100), duration = an.random:float(0.1, 0.3)}))
   520→   520→  --   end
   521→   521→  --   if self.ability == 'fireball' then
   522→   522→  --     sfx('fireball_hit', volumes.fireball_hit)
   523→   523→  --   end
   524→   524→  --   self:kill()
   525→   525→  --   return
   526→   526→  -- end
   527→   527→
   528→   528→  local s = self.spring.main.x
   529→   529→  local c = self.flashing and fg_color() or self.color()
... [270 more lines]

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E:\a327ex\Orblike\anchor\init.lua:830:    Enables hit events (collision with contact info) between two tags.
E:\a327ex\Orblike\anchor\init.lua:835:    Hit events include contact point, normal, and approach speed.
E:\a327ex\Orblike\anchor\init.lua:847:      for _, event in ipairs(an:collision_begin_events('player', 'enemy')) do
E:\a327ex\Orblike\anchor\init.lua:856:  function an:collision_begin_events(tag_a, tag_b)
E:\a327ex\Orblike\anchor\init.lua:858:    for _, event in ipairs(physics_get_collision_begin(tag_a, tag_b)) do
E:\a327ex\Orblike\anchor\init.lua:936:      for _, event in ipairs(an:sensor_begin_events('player', 'pickup')) do
E:\a327ex\Orblike\anchor\init.lua:944:  function an:sensor_begin_events(tag_a, tag_b)
E:\a327ex\Orblike\anchor\init.lua:946:    for _, event in ipairs(physics_get_sensor_begin(tag_a, tag_b)) do

   940→
   941→    Returns array of:
   942→      {a = <object>, b = <object>, shape_a = <handle>, shape_b = <handle>}
   943→  ]]
   944→  function an:sensor_begin_events(tag_a, tag_b)
   945→    local result = {}
   946→    for _, event in ipairs(physics_get_sensor_begin(tag_a, tag_b)) do
   947→      local id_a = physics_get_user_data(event.sensor_body)
   948→      local id_b = physics_get_user_data(event.visitor_body)
   949→      local collider_a = self.colliders[id_a]
   950→      local collider_b = self.colliders[id_b]
   951→      if collider_a and collider_b then
   952→        if event.sensor_tag == tag_a and event.visitor_tag == tag_b then
   953→          table.insert(result, {
   954→            a = collider_a.parent,
   955→            b = collider_b.parent,
   956→            shape_a = event.sensor_shape,
   957→            shape_b = event.visitor_shape,
   958→          })
   959→        elseif event.sensor_tag == tag_b and event.visitor_tag == tag_a then
   960→          table.insert(result, {
   961→            a = collider_b.parent,
   962→            b = collider_a.parent,
   963→            shape_a = event.visitor_shape,
   964→            shape_b = event.sensor_shape,
   965→          })
   966→        end
   967→      end
   968→    end
   969→    return result

383:  self:add(collider('projectile', 'dynamic', 'box', self.w, self.h, {sensor = true}))
543:function projectile:on_hit(e, hx, hy)
856:  for _, event in ipairs(an:sensor_begin_events('projectile', 'enemy')) do
862:    proj:on_hit(e, hx, hy)

   850→    for i = 1, an.random:int(1, 2) do
   851→      an:add(hit_particle(event.point_x, event.point_y, {velocity = an.random:float(60, 120), duration = an.random:float(0.1, 0.3)}))
   852→    end
   853→  end
   854→
   855→  -- Projectile-enemy hit
   856→  for _, event in ipairs(an:sensor_begin_events('projectile', 'enemy')) do
   857→    local proj, e = event.a, event.b
   858→    local r = math.angle_to_point(e.x, e.y, proj.x, proj.y)
   859→    local s = math.max(e.w, e.h)
   860→    local hx = e.x + s*0.75*math.cos(r)
   861→    local hy = e.y + s*0.75*math.sin(r)
   862→    proj:on_hit(e, hx, hy)
   863→  end
   864→end)
   865→
   866→-- Debug
   867→an:action(function()
   868→  if an:key_is_pressed('k') then
   869→    an:add(seeker(p1.x + an.random:float(-80, 80), p1.y + an.random:float(-60, 60)))
   870→  end
   871→  if an:key_is_pressed('l') then
   872→    for i = 1, 5 do
   873→      an:add(seeker(p1.x + an.random:float(-120, 120), p1.y + an.random:float(-80, 80)))
   874→    end
   875→  end
   876→end)
   877→
   878→-- Draw background
   879→an:action(function()

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No matches found

835:p1 = player(gw/2, gh/2, {lesser_returning = true, nova = true, greater_decreased_projectile_speed = true})

<tool_use_error>Found 2 matches of the string to replace, but replace_all is false. To replace all occurrences, set replace_all to true. To replace only one occurrence, please provide more context to uniquely identify the instance.
String:   self.pierce = args.pierce
  self.lesser_returning = args.lesser_returning</tool_use_error>

The file E:\a327ex\Orblike\main.lua has been updated successfully.

The file E:\a327ex\Orblike\main.lua has been updated successfully.

The file E:\a327ex\Orblike\main.lua has been updated successfully.

The file E:\a327ex\Orblike\main.lua has been updated successfully.

The file E:\a327ex\Orblike\main.lua has been updated successfully.

The file E:\a327ex\Orblike\main.lua has been updated successfully.