feat: P15 ending gallery, chapter recap, visited tracking, save system v6

engine/core/Engine.ts

@@ -28,6 +28,7 @@ export class Engine {
   private loopActive = false
   private onUnlockChapter: ((chapterId: string) => void) | null = null
   private onMarkWatched: ((sceneId: string) => void) | null = null
+  private onMarkVisited: ((sceneId: string) => void) | null = null
 
   setChapterUnlockHandler(handler: (chapterId: string) => void) {
     this.onUnlockChapter = handler
@@ -37,6 +38,10 @@ export class Engine {
     this.onMarkWatched = handler
   }
 
+  setMarkVisitedHandler(handler: (sceneId: string) => void) {
+    this.onMarkVisited = handler
+  }
+
   constructor() {
     this.sceneManager = new SceneManager()
     this.videoManager = new VideoManager()
@@ -74,40 +79,16 @@ export class Engine {
   }
 
   private goToScene(scene: SceneNode) {
+    this.currentScene = scene
+
     const chapter = this.sceneManager.getChapterBySceneId(scene.id)
     if (chapter) {
       this.onUnlockChapter?.(chapter.id)
       this.emit('chapterUnlock', chapter)
     }
 
-    if (scene.onEnter) {
-      this.stateManager.apply(scene.onEnter)
-    }
+    this.onMarkVisited?.(scene.id)
 
-    if (scene.videoMuted) {
-      this.videoManager.setMuted(true)
-    } else {
-      this.videoManager.setMuted(false)
-    }
-
-    const bgmUrl = scene.bgmUrl || null
-    if (bgmUrl) {
-      this.audioSystem.play(
-        bgmUrl,
-        scene.bgmVolume ?? 0.8,
-        scene.bgmCrossFade ?? 2.0,
-        scene.bgmDuckLevel,
-        scene.bgmDuckFade,
-      )
-    } else {
-      this.audioSystem.stop(scene.bgmCrossFade ?? 2.0)
-    }
-
-    this.enterScene(scene)
-  }
-
-  private enterScene(scene: SceneNode) {
-    this.currentScene = scene
     this.qteTriggered = false
     this.qteResolved = false
     this.loopActive = false
@@ -405,7 +386,7 @@ export class Engine {
 
     this.ended = false
     this.isInitialScene = false
-    this.enterScene(scene)
+    this.goToScene(scene)
   }
 
   destroy() {

engine/core/SceneManager.ts

@@ -25,6 +25,10 @@ export class SceneManager {
     return Object.keys(this.scenes)
   }
 
+  getScenes(): Record<string, SceneNode> {
+    return this.scenes
+  }
+
   getChapterBySceneId(sceneId: string): ChapterInfo | undefined {
     return this.chapters.find((ch) => ch.startScene === sceneId)
   }

engine/systems/SaveSystem.ts

@@ -25,19 +25,25 @@ interface AchievementRecord {
   achievementId: string
 }
 
+interface VisitedRecord {
+  sceneId: string
+}
+
 class SaveDB extends Dexie {
   saves!: Table<SaveRecord, number>
   unlocks!: Table<UnlockRecord, string>
   watched!: Table<WatchedRecord, string>
   achievements!: Table<AchievementRecord, string>
+  visited!: Table<VisitedRecord, string>
 
   constructor() {
     super('MovieGameSaves')
-    this.version(5).stores({
+    this.version(6).stores({
       saves: '++id, slot',
       unlocks: 'chapterId',
       watched: 'sceneId',
       achievements: 'achievementId',
+      visited: 'sceneId',
     })
   }
 }
@@ -138,4 +144,16 @@ export class SaveSystem {
     const records = await db.achievements.toArray()
     return records.map((r) => r.achievementId)
   }
+
+  async markVisited(sceneId: string) {
+    const exists = await db.visited.get(sceneId)
+    if (!exists) {
+      await db.visited.put({ sceneId })
+    }
+  }
+
+  async getVisitedSceneIds(): Promise<string[]> {
+    const records = await db.visited.toArray()
+    return records.map((r) => r.sceneId)
+  }
 }

engine/types.ts

@@ -88,12 +88,20 @@ export interface AchievementDef {
   condition: Condition
 }
 
+export interface EndingDef {
+  id: string
+  label: string
+  sceneId: string
+  thumbnail?: string
+}
+
 export interface GameData {
   scenes: Record<string, SceneNode>
   startScene: string
   variables: Record<string, number>
   chapters?: ChapterInfo[]
   achievements?: AchievementDef[]
+  endings?: EndingDef[]
 }
 
 export interface ChoiceRecord {