关于u3d:U3D游戏开发框架四音频管理器

一：目标

游戏音频的播放在任何游戏中都占据十分重要的位置，音频的播放能够分为两种，一种为游戏音乐，另一种为游戏音效。前者实用于较长的音乐，如游戏背景音乐。第二种实用于比拟短的游戏音乐，如开枪霎时的音效
在Unity中有两个对于音频的重要组件：AudioListener和AudioSource，通过AudioListener进行监听，AudioSource进行播放

所以咱们须要一个管理器对立治理音频的相干操作

二：解决的问题及长处

——音效的播放、暂停、持续、静音
——背景音乐的播放、暂停、持续、静音、渐隐

三：应用办法

——将所有音频文件对立放在Resources文件夹下的Sounds文件夹下
——应用SoundMgr.Ins.XXX

SoundMgr.Ins.PlayBGM("bgm");
SoundMgr.Ins.PlaySound("coin");
SoundMgr.Ins.StopPlay();
SoundMgr.Ins.PausePlay();
SoundMgr.Ins.BGMFade(2);

四：代码实现

using UnityEngine;
 
/// <summary>
/// 音频管理器
/// </summary>
public class SoundMgr : MonoSingleton<SoundMgr>
{
    public const string SoundDir = "Sounds/";//音频目录
 
    //BGM播放器
    private AudioSource bgmPlayer;
    public AudioSource BgmPlayer { get { return bgmPlayer; } }
    //音效播放器
    private AudioSource soundPlayer;
    public AudioSource SoundPlayer { get { return soundPlayer; } }
 
    //是否静音
    private bool isMute;
    public bool IsMute { get { return isMute; } }
 
    private bool bgmFade;//背景音乐是否渐隐
    private float bgmFadeBeginVolume;//背景音乐渐隐开始时的音量
    private float bgmFadeBeginTime;//背景音乐渐隐开始的工夫
    private float bgmFadeDuration;//背景音乐渐隐的工夫
 
    private void Awake()
    {
        if (bgmPlayer == null)
        {
            bgmPlayer = gameObject.AddComponent<AudioSource>();
            bgmPlayer.loop = true;
            bgmPlayer.playOnAwake = false;
            bgmPlayer.mute = isMute;
        }
        if (soundPlayer == null)
        {
            soundPlayer = gameObject.AddComponent<AudioSource>();
            soundPlayer.loop = false;
            soundPlayer.playOnAwake = false;
            soundPlayer.mute = isMute;
        }
    }
 
    /// <summary>
    /// 播放音效
    /// </summary>
    public void PlaySound(string soundName, float volume = 1, bool loop = false)
    {
        AudioClip clip = Resources.Load<AudioClip>(SoundDir + soundName);
        if (clip == null)
        {
            Debug.LogError("没有此音频：" + soundName);
            return;
        }
        soundPlayer.clip = clip;
        soundPlayer.volume = volume;
        soundPlayer.loop = loop;
        soundPlayer.Play();
    }
 
    /// <summary>
    /// 播放背景音乐
    /// </summary>
    public void PlayBGM(string bgmName, float volume = 1, bool loop = true)
    {
        AudioClip clip = Resources.Load<AudioClip>(SoundDir + bgmName);
        if (clip == null)
        {
            Debug.LogError("没有此音频：" + bgmName);
            return;
        }
        bgmPlayer.clip = clip;
        bgmPlayer.volume = volume;
        bgmPlayer.loop = loop;
        bgmPlayer.Play();
    }
 
    /// <summary>
    /// 背景音乐渐隐
    /// </summary>
    public void FadeBGM(float fadeDuration)
    {
        bgmFade = true;
        bgmFadeBeginTime = Time.realtimeSinceStartup;
        bgmFadeBeginVolume = bgmPlayer.volume;
        bgmFadeDuration = fadeDuration;
    }
 
    /// <summary>
    /// 暂停播放
    /// </summary>
    public void PausePlay()
    {
        bgmPlayer.Pause();
        soundPlayer.Pause();
    }
    /// <summary>
    /// 持续播放
    /// </summary>
    public void ResumePlay()
    {
        bgmPlayer.Play();
        soundPlayer.Play();
    }
    /// <summary>
    /// 进行播放
    /// </summary>
    public void StopPlay()
    {
        bgmPlayer.Stop();
        soundPlayer.Stop();
    }
    /// <summary>
    /// 设置静音
    /// </summary>
    public void SetMute(bool b)
    {
        isMute = b;
        bgmPlayer.mute = isMute;
        soundPlayer.mute = isMute;
    }
 
    /// <summary>
    /// 进行播放BGM
    /// </summary>
    public void StopPlayBGM()
    {
        bgmPlayer.Stop();
    }
    /// <summary>
    /// 暂停播放BGM
    /// </summary>
    public void PausePlayBGM()
    {
        bgmPlayer.Pause();
    }
    /// <summary>
    /// 持续播放BGM
    /// </summary>
    public void ResumePlayBGM()
    {
        bgmPlayer.Play();
    }
    /// <summary>
    /// 进行播放音效
    /// </summary>
    public void StopPlaySound()
    {
        soundPlayer.Stop();
    }
 
    private void Update()
    {
        if (bgmFade)
        {
            float delta = Time.realtimeSinceStartup - bgmFadeBeginTime;
            if (delta <= bgmFadeDuration)
            {
                bgmPlayer.volume = Mathf.Lerp(bgmFadeBeginVolume, 0, delta / bgmFadeDuration);
            }
            else
            {
                bgmFade = false;
                bgmPlayer.volume = 0;
            }
        }
    }
}

图片起源：http://www.coubai.com/ 页游