ev

type EventType uint32

type IEvent interface{ EType() EventType }

type IEventDispatcher interface {
	Dispatch(event IEvent)
	AddEventListener(eventType EventType, listener IEventListener)
	RemoveListenerByEType(eventType EventType, listener IEventListener)
	RemoveListenerAll(listener IEventListener)
}

type IEventListener interface{ OnEvent(IEvent) }