public void schedule(TICK_IMP selector, float interval=0, uint repeat=CCScheduler.kCCRepeatForever, float delay=0){ NSUtils.Assert( selector != null, "Argument must be non-nil"); NSUtils.Assert( FloatUtils.EB( interval , 0), "Arguemnt must be positive"); _scheduler.schedule (selector, this, interval, repeat, !_isRunning, delay); } /**