增加音效管理

fe/src/Main.ts

@@ -161,6 +161,8 @@ class Main extends egret.DisplayObjectContainer {
      */
     private createGameScene() {
         this.addChild(SceneManager.getInstance());
+        // SoundManager.getInstance().play({soundName: 'bgm_mp3', loops: -1})
+        // SoundManager.getInstance().playCatched(1)
     }
 
     /**

fe/src/SoundManager.ts

+class SoundManager {
+    private static instance: SoundManager;
+    private sounds: any
+    public constructor() {
+        this.init()
+    }
+
+    private init() {
+        this.sounds = {}
+        const soundNames = [
+            'catched_0_mp3',
+            'catched_1_mp3',
+            'catched_2_mp3',
+            'flirt_mp3',
+            'bgm_mp3',
+        ]
+        soundNames.forEach(soundName => {
+            this.sounds[soundName] = RES.getRes(soundName)
+        })
+    }
+    // 实例化单例获取方法
+    public static getInstance(): SoundManager {
+        if (!SoundManager.instance) {
+            SoundManager.instance = new SoundManager();
+        }
+        return SoundManager.instance;
+    }
+
+    public play({soundName, startTime = 0, loops = 1}) {
+        this.sounds[soundName].play(startTime, loops)
+    }
+    // 随机播放被抓音频
+    public playCatched(num?) {
+        const soundName = [
+            'catched_0_mp3',
+            'catched_2_mp3',
+        ][num || this.rnd(0, 1)]
+        this.play({soundName})
+    }
+
+    rnd(start, end) {
+        return Math.floor(Math.random() * (end - start) + start)
+    }
+}
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