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package com.artemis.systems.event;

import com.artemis.systems.EntitySystem;
import com.badlogic.gdx.utils.Array;
import com.badlogic.gdx.utils.Disposable;

/**
 * Interface for event delivery systems to adhere to.
 * 
 * @author apotapov
 */
public interface EventDeliverySystem extends Disposable {

    public void initialize();
    public void update();

    /**
     * Post an event to people who care.
     * 
     * @param sender The sender of the event
     * @param event The event to send.
     */
    public void postEvent(EntitySystem sender, SystemEvent event);

    /**
     * Method used to poll the event system for any posted events and add them to fillArray
     * 
     * @param  Type of event
     * @param pollingSystem System that is polling system.
     * @param eventType Type of event to get.
     * @param events Set that the posted events will be loaded into.
     */
    public  void getEvents(EntitySystem pollingSystem, Class eventType, Array events);
}