tower_client/assets/script/framework/audio/AudioMusic.ts

import { AudioClip, AudioSource, error, _decorator } from 'cc';
import { resLoader } from '../res/ResLoader';
const { ccclass, menu } = _decorator;

export class AudioMusic extends AudioSource {
    onComplete: Function = null;

    private _progress: number = 0;
    private _url: string = null;
    private _is_play: boolean = false;

    /**
     * 设置音乐当前播放进度
     * @param progress 进度百分比(0~1)
     */
    get progress() {
        this._progress = this.currentTime / this.duration;
        return this._progress;
    }
    set progress(value: number) {
        this._progress = value;
        this.currentTime = value * this.duration;
    }

    load(bundle: string, url: string, callback?: Function,loop: boolean = true) {
        resLoader.load(bundle, url, AudioClip, (error: Error, clip: AudioClip) => {
            if (error) {
                console.error(error);
            } else {
                if (this.playing) {
                    this._is_play = false;
                    this.stop();
                    // resLoader.release(this._url!, bundle);
                }
                this.clip = clip;
                this.currentTime = 0;
                this.loop = loop;
                this.play();
                callback && callback();
                this._url = url;
            }
        });
    }

    update() {
        (this.currentTime > 0) && (this._is_play = true);
        if (this._is_play && this.playing == false) {
            this._is_play = false;
            this.onComplete && this.onComplete();
        }
    }
}