public IEnumerator EaseToChangeVolume(AudioAsset au, string name, bool isLoop, float volumeScale, float delay, float fadeTime)
{
AudioClip ac = GetAudioClip(name);
float oldVolume = au.Volume;
float target = au.Volume;
if (au.audioSource && au.IsPlay)
{
while (target > 0f)
{
float speed = oldVolume / fadeTime;
target = target - speed * Time.fixedDeltaTime;
au.Volume = target;
yield return(new WaitForFixedUpdate());
}
au.Stop();
}
au.assetName = name;
au.audioSource.clip = ac;
au.audioSource.loop = isLoop;
au.Play(delay);
target = 0;
yield return(new WaitForSeconds(delay));
while (target < oldVolume)
{
float speed = oldVolume / fadeTime * 1.2f;
target = target + speed * Time.fixedDeltaTime;
au.Volume = target;
yield return(new WaitForFixedUpdate());
}
au.VolumeScale = volumeScale;
}
