eventManager = null; startLevelListeners.removeAllListeners(); startLevelListeners = null; startLevelListener = null; }
eventManager = null; startLevelListeners.removeAllListeners(); startLevelListeners = null; }
    protected void cleanup() {        eventManager = null;        startLevelListeners.removeAllListeners();        startLevelListeners = null;        startLevelListener = null;    }