public void update(GameContainer container, int delta) {
		boolean isOn = InputChecker.isInputDown(container, KeyBindings.P1_INPUT);
		if (!eventList.isEmpty() && eventList.get(0).isOn() == isOn) {
			eventList.get(0).pushLength(delta);
		} else {
			eventList.add(0, new RhythmEvent(isOn, delta));
		}
	}