1.音频管理器
创建管理器对象
创建AudioManager脚本：
public static AudioManager instance;
**[SerializeField] private AudioSource[] SFX;//音效
SerializeField\] private AudioSource\[\] BGM;//bgm**
**public bool playBGM;//是否播放bgm
private int bgmIndex;//bgm的索引**
**public void Awake()
{
if (instance != null)
{
Destroy(instance.gameObject);
}
else
{
instance = this;
}
}
void Update()
{
if(!playBGM)//确保bgm的正确播放
StopAllBGM();
else
{
if (!BGM\[bgmIndex\].isPlaying)
PlayBGM(bgmIndex);
}
}**
**public void PlaySFX(int _SFXindex)
{
if(_SFXindex\ SFX\[_SFXindex\].Stop();**
**public void PlayRandomBGM()//播放随机bgm
{
bgmIndex =Random.Range(0, BGM.Length);
PlayBGM(bgmIndex);
}
public void PlayBGM(int _BGMindex)//播放指定bgm
{
bgmIndex= _BGMindex;**
**StopAllBGM();**
**BGM\[bgmIndex\].Play();**
**}
public void StopAllBGM()
{
for(int i = 0; i \< BGM.Length; i++)
{**
**BGM\[i\].Stop();
}**
**}**
## 2.音频的距离限制
### AudioManager脚本：
**\[SerializeField\] private float sfxMinDistance;**
**public void PlaySFX(int _SFXindex,Transform _source)//传入声源的位置
{
if (SFX\[bgmIndex\].isPlaying)//防止重复播放
return;**
**if (_source != null \&\& Vector2.Distance(PlayerManage.instance.player.transform.position, _source.position) \> sfxMinDistance)//检测距离
return;**
**if(_SFXindex\();**
**currentBlackholeScript.SetupBlackhole(maxSize, growSpeed, shrinkSpeed, cloneAttackCooldown, amountofAttack,blackholeDuration);**
**AudioManager.instance.PlaySFX(3,player.transform);//播放黑洞的声音
AudioManager.instance.PlaySFX(6, player.transform);
}**
## 4.音频混合器的设置
### UI_VolumeSlider脚本：
**public Slider slider;//滑块
public string pamater;//音频混合器的参数**
**\[SerializeField\] private AudioMixer audioMixer;//音频混合器
\[SerializeField\] private float mutiplier;//乘数
private const string delayedMethodName = "DelayedSetVolume";
private float pendingValue;**
**public void SliderValue(float _value)
{**
**if (IsInvoking(delayedMethodName))
{
CancelInvoke(delayedMethodName);
}**
**pendingValue = _value;**
**Invoke(delayedMethodName, 0.01f);//延迟调用声音调整
}**
**private void DelayedSetVolume()
{
float dB = Mathf.Log10(pendingValue) \* mutiplier;
audioMixer.SetFloat(pamater, dB);//修改音频混合器**
**}**
**public void LoadSlider(float _value)//加载数据
{**
**if (_value \>= 0.001f)
slider.value = _value;
}**
### GameData脚本：
**public SerializbleDictionary\ volumeSettings;//需要保存的数据**
### UI脚本：
**public class UI : MonoBehaviour,ISaveManager实现保存接口**
**\[SerializeField\] public UI_VolumeSlider\[\] volumeSettings;**
**public void LoadDate(GameData gameData)//加载声音的调整
{
foreach (KeyValuePair\ pair in gameData.volumeSettings)
{
foreach(UI_VolumeSlider item in volumeSettings)
{
if(item.pamater==pair.Key)
item.LoadSlider(pair.Value);
}
}
}**
**public void SaveDate(ref GameData gameData)//保存声音的调整
{
gameData.volumeSettings.Clear();**
**foreach(UI_VolumeSlider volumeSlider in volumeSettings)
{
gameData.volumeSettings.Add(volumeSlider.pamater, volumeSlider.slider.value);
}**
**}'**
## 5.音频时间限制器
### AudioManager脚本：
**private bool canPlaySFX;//是否可以播放音效**
**public void PlaySFX(int _SFXindex, Transform _source)
{
if(canPlaySFX==false)//不能则直接返回
{
return;
}
//if (SFX\[bgmIndex\].isPlaying)
//return;**
**if (_source != null \&\& Vector2.Distance(PlayerManage.instance.player.transform.position, _source.position) \> sfxMinDistance)
return;**
**if (_SFXindex \< SFX.Length)
{
SFX\[_SFXindex\].pitch = Random.Range(.85f, 1.1f);
SFX\[_SFXindex\].Play();
}
}**
**private void AllowSFXPlay()=\>canPlaySFX = true;//启用音效**
**public void Awake()
{
if (instance != null)
{
Destroy(instance.gameObject);
}
else
{
instance = this;
}**
**Invoke("AllowSFXPlay", 1f); //延迟调用
}**
## 6.区域音效制作
### 创建AreaSound脚本并挂载在一片空对象上：
**\[SerializeField\] private int areaSoundIndex;//该区域对应的音效索引**
**private void OnTriggerEnter2D(Collider2D collision)
{
if (collision.GetComponent\() != null)
AudioManager.instance.PlaySFX(areaSoundIndex,null);//进入播放
}**
**private void OnTriggerExit2D(Collider2D collision)
{
if (collision.GetComponent\() != null)
AudioManager.instance.StopSFXWithTime(areaSoundIndex);//退出时缓慢的关闭音乐
}**
### AudioManager脚本：
**public void StopSFXWithTime(int _index)
{
StartCoroutine(DecreaseVolume(SFX\[_index\]));
}**
**private IEnumerator DecreaseVolume(AudioSource _audio)//延迟关闭，并且缓慢较小音效的音调大小
{
float defualtVolume=_audio.volume;**
**while(_audio.volume \> .1f)
{
_audio.volume -= _audio.volume \* .2f;
yield return new WaitForSeconds(.6f);**
**if(_audio.volume \<.1f)
{
_audio.Stop();
_audio.volume=defualtVolume;
break;
}**
**}
}**