//https://github.com/rzer/Scooby/blob/master/Scooby/scooby/events/EventDispatcher.hx
    public function dispatchEvent(event:Event):Void {

        var list:Array<Event->Void> = listeners[event.type];
        if (list == null) return;

        event.target = this;

        list = list.copy();

        var listener:Event->Void;

        for (listener in list) {
            listener(event);
        }
    }

// Scala
var listener = HashMap[Event, None]
var list = listeners(event.type).foreach(listener(_))