/**
* Play a sound only once, and allow it only once every interval. Very useful for sounds made
* while enemies are on stage, since it won't play concurrent sounds.
*
* @param sound
* @param volume
* @param identifier
* @param interval
*/
public static void playSoundSingle(
final Getter<Sound> getter, float volume, String identifier, long interval) {
if (!Scheduler.isTracked(identifier, identifier)) {
Sound sound = getter.get();
sound.play(volume);
Scheduler.track(identifier, identifier, interval);
}
}
