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.Length)
{
SFX[_SFXindex].pitch = Random.Range(.85f, 1.1f);//每次音效的效果不同
SFX[_SFXindex].Play();//播放指定音效
}
}
public void StopSFX(int _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<SFX.Length)
{
SFX[_SFXindex].pitch = Random.Range(.85f, 1.1f);
SFX[_SFXindex].Play();
}
}
SkeletonIdleState脚本：
public override void Exit()
{
base.Exit();
AudioManager.instance.PlaySFX(14,enemy.transform);//敌人退出待机状态时播放音乐
}
3.更多音频的设置
PlayerMoveState脚本：
public override void Enter()
{
base.Enter();
AudioManager.instance.PlaySFX(14, null);//播放脚步声
}
public override void Exit()
{
base.Exit();
AudioManager.instance.StopSFX(14);
}
Checkpoint脚本：
public void ActiveCheckPoints()
{
if(activeStatus==false)
{
AudioManager.instance.PlaySFX(5, transform);//播放检查点激活的音效
}
activeStatus=true;
anim.SetBool("active", true);
}
ItemObject脚本：
public void PickupObject()
{
if (!Inventory.instance.canAddItem() && itemData.itemType==ItemType.Equipment)
{
rb.velocity = new Vector2(0, 7);
return;
}
Inventory.instance.AddItem(itemData);
AudioManager.instance.PlaySFX(18, transform);//物品拾取的音效
Destroy(gameObject);
}
Blackhole_Skill脚本：
public override void UseSkill()
{
base.UseSkill();
GameObject newblackhole = Instantiate(blackholePrefab,player.transform.position,Quaternion.identity);
currentBlackholeScript = newblackhole.GetComponent<Blackhole_Skill_Control>();
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<string, float> 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<string,float> 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<Player>() != null)
AudioManager.instance.PlaySFX(areaSoundIndex,null);//进入播放
}
private void OnTriggerExit2D(Collider2D collision)
{
if (collision.GetComponent<Player>() != 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;
}
}
}