Unity3D实现随机播放背景音频

1.先在第一人称下新建空白物体，命名“audio”

2.在audio中加入Audio Source

3.在第一人称组件里添加Audio Liistener和Audio脚本

4.脚本中添加代码

 using UnityEngine;
 using System.Collections;

 public class audio : MonoBehaviour {

     public AudioSource audioSource;
     public AudioClip otherClip1;
     public AudioClip otherClip2;
     public AudioClip otherClip3;
     public float musicVolume;
     public float randomNum;
     public int state;

     // Use this for initialization
     void Start () {
         musicVolume = 0.5f;
         randomPlay();
     }

     // Update is called once per frame
     void Update () {
         audioSource.volume = musicVolume;
         if ((state ==  && !audioSource.isPlaying)||(state ==  && !audioSource.isPlaying) ||(state ==  && !audioSource.isPlaying)) { randomPlay(); }
     }

     void randomPlay()
     {
         randomNum = Random.Range(1.0f, 4.0f);
         if (randomNum >= 1.0f && randomNum < 2.0f) { state = ; audioSource.clip = otherClip1; audioSource.Play(); }
         else if (randomNum >= 2.0f && randomNum < 3.0f) { state = ; audioSource.clip = otherClip2; audioSource.Play(); }
         else if (randomNum >= 3.0f && randomNum <= 4.0f) { state = ; audioSource.clip = otherClip3; audioSource.Play(); }
     }

 }