// 音频管理类 单例模式
// 用法：playSoundManager.getInstance().playSound("soundName",1,false);
// 1.第一个参数是音频名称，2.第二个参数是音量，3.第三个参数是是否循环
const { ccclass, property } = cc._decorator;

@ccclass
export default class PlaySoundManager extends cc.Component {
    // 单例
    private static _instance: PlaySoundManager = null;
    public static getInstance(): PlaySoundManager {
        if (!PlaySoundManager._instance) {
            PlaySoundManager._instance = new PlaySoundManager();
        }
        return PlaySoundManager._instance;
    }

    // 加载音频
    public loadSound(soundName: string, callback: Function): void {
        cc.loader.loadRes(
            soundName,
            cc.AudioClip,
            function (err, clip) {
                if (err) {
                    cc.error(err.message || err);
                    return;
                }
                if (callback) callback(clip);
            }.bind(this)
        );
    }

    /**
     * 播放音效
     *
     * @param {cc.AudioClip} soundClip
     * @param {boolean} [loop=true]
     * @param {number} volume
     * @memberof PlaySoundManager
     */
    public playSound(soundClip: cc.AudioClip, loop: boolean = true, volume?: number): void {
        cc.audioEngine.playEffect(soundClip, loop);
    }

    /**
     *  停止所有音效
     *
     * @memberof PlaySoundManager
     */
    public stopAllSound(): void {
        cc.audioEngine.stopAllEffects();
    }
}