fix(combat): resolve static typecheck errors and event double-clear race (Fixes #404)

src/scene/act-scene.ts

@@ -5627,9 +5627,6 @@ if (typeof window !== 'undefined') {
   const loop = new GameLoop({
     tickRate: 25,
     onTick: () => {
-      // Clean tick boundary: flush previous tick events before mouseController runs
-      engine.world.events = []
-      if (engine.world.pendingKills) engine.world.pendingKills = []
       const mouseStep = mouseController.tick()
       const effectiveMovement = mouseStep.movement
       if (hudManager) {

tests/combat-kill-lifecycle.test.ts

@@ -4,7 +4,8 @@ import { MountedArchives } from '../src/mpq/mount.ts'
 import { MpqArchive } from '../src/mpq/archive.ts'
 import { fileSource } from '../src/mpq/file-source.ts'
 import { loadDropTables, type DropTables } from '../src/game/drop-pipeline.ts'
-import { GameEngine, type GameEngineOptions } from '../src/game/engine.ts'
+import { GameEngine, type GameEngineOptions, type WorldMapProvider } from '../src/game/engine.ts'
+import type { SkillDef } from '../src/game/skills.ts'
 import { damageMonster, type Monster } from '../src/game/combat.ts'
 import { DEMO_EXPERIENCE, DEMO_NPCS, DEMO_QUESTS } from '../src/game/demo-data.ts'
 
@@ -24,7 +25,9 @@ describe('Combat Kill Event Lifecycle & Single-Drop Gate (Issue #404)', () => {
     dropTables = await loadDropTables(archives)
   })
 
-  const dummyTerrain = {
+  const dummyTerrain: WorldMapProvider = {
+    widthPx: 1000,
+    heightPx: 1000,
     overlap: () => 0,
     isMissileBlocked: () => false,
   }
@@ -70,7 +73,6 @@ describe('Combat Kill Event Lifecycle & Single-Drop Gate (Issue #404)', () => {
   function createTestEngine(): GameEngine {
     const engineOpts: GameEngineOptions = {
       spawn: { x: 100, y: 100 },
-      combatPlayer: { x: 100, y: 100, maxHp: 100, maxMana: 100 },
       stats: [
         {
           id: 'fallen1',
@@ -94,6 +96,12 @@ describe('Combat Kill Event Lifecycle & Single-Drop Gate (Issue #404)', () => {
           name: 'Attack',
           manaCost: 0,
           cooldownTicks: 1,
+          range: 48,
+          projectile: false,
+          speed: 0,
+          baseMinDamage: 10,
+          baseMaxDamage: 20,
+          damagePerLevel: 2,
           radius: 48,
         },
       ],
@@ -116,6 +124,10 @@ describe('Combat Kill Event Lifecycle & Single-Drop Gate (Issue #404)', () => {
     }
 
     const engine = new GameEngine(dummyTerrain, engineOpts)
+    engine.world.player.maxHp = 100
+    engine.world.player.hp = 100
+    engine.world.player.maxMana = 100
+    engine.world.player.mana = 100
     engine.world.monsters = [createMonster(0, 110, 100, 20)]
     return engine
   }
@@ -155,14 +167,23 @@ describe('Combat Kill Event Lifecycle & Single-Drop Gate (Issue #404)', () => {
     ]
 
     // Configure Nova (instant AoE skill)
-    engine.opts.skills.push({
+    const novaDef: SkillDef = {
       id: 'nova',
       name: 'Nova',
       manaCost: 0,
       cooldownTicks: 1,
+      range: 80,
+      projectile: false,
+      speed: 0,
+      baseMinDamage: 50,
+      baseMaxDamage: 50,
+      damagePerLevel: 0,
       radius: 80,
-      damage: 50, // Lethal to 20 hp monsters
-    })
+    }
+    engine.opts = {
+      ...engine.opts,
+      skills: [...engine.opts.skills, novaDef],
+    }
     engine.selectedSkill = engine.opts.skills.length - 1
 
     const initialDropsRolled = engine.metrics.dropsRolled