chore: sync latest changes

engine/core/Engine.ts

@@ -5,6 +5,7 @@ import { StateManager } from './StateManager'
 import { ChoiceSystem } from '../systems/ChoiceSystem'
 import { QTESystem } from '../systems/QTESystem'
 import { AudioSystem } from '../systems/AudioSystem'
+import { AchievementSystem } from '../systems/AchievementSystem'
 
 type EventHandler = (...args: any[]) => void
 
@@ -15,6 +16,7 @@ export class Engine {
   choiceSystem: ChoiceSystem
   qteSystem: QTESystem
   audioSystem: AudioSystem
+  achievementSystem: AchievementSystem
 
   private currentScene: SceneNode | null = null
   private events: Map<EngineEvent, Set<EventHandler>> = new Map()
@@ -42,6 +44,11 @@ export class Engine {
     this.choiceSystem = new ChoiceSystem()
     this.qteSystem = new QTESystem()
     this.audioSystem = new AudioSystem()
+    this.achievementSystem = new AchievementSystem()
+
+    this.stateManager.onAfterApply = (vars) => {
+      this.achievementSystem.check(vars)
+    }
 
     this.videoManager.onTimeUpdate(this.onTimeUpdate)
   }

engine/core/StateManager.ts

@@ -4,6 +4,7 @@ export class StateManager {
   variables: Record<string, number> = {}
   flags: Set<string> = new Set()
   history: ChoiceRecord[] = []
+  onAfterApply: ((variables: Record<string, number>) => void) | null = null
 
   init(initialVars: Record<string, number>) {
     this.variables = { ...initialVars }
@@ -72,6 +73,7 @@ export class StateManager {
           break
       }
     }
+    this.onAfterApply?.(this.variables)
   }
 
   recordChoice(choice: ChoiceRecord) {