static public void PlayClipAtPoint(AudioClipExtended clip, Vector3 position, float delay, float volume)
 {
     if (clip != null)
     {
         PlayClipAtPoint(clip.audioClip, position, delay, volume);
     }
 }
 static public void PlayClipAtPoint(AudioClipExtended clip, Vector3 position)
 {
     if (clip != null)
     {
         PlayClipAtPoint(clip.audioClip, position, 0.0f, clip.volume);
     }
 }