using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using DG.Tweening;

/// <summary>
/// 控制背景音乐的播放和切换
/// </summary>
public class MusicController : UnitySingleton<MusicController>
{
    public AudioClip start;
    public AudioClip game;

    private AudioClip current;
    private AudioSource audioSource;
    private float volume;
    // Start is called before the first frame update
    void Start(){
        audioSource = GetComponent<AudioSource>();
        DontDestroyOnLoad(gameObject);
        volume = audioSource.volume;
        To(start);
    }

    public void To(AudioClip target){
        if(current == target){
            return;
        }
        current = target;
        //先将音量降至0
        audioSource.DOFade(0,0.5f).OnComplete(()=>{
            audioSource.clip = target;
            audioSource.Play();
            audioSource.DOFade(volume,0.5f);
        });
        
    }

}