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package com.fourisland.fourpuzzle.gamestate.mapview.event.specialmove;

import com.fourisland.fourpuzzle.gamestate.mapview.event.Event;
import java.awt.Point;

/**
 * LoopUntilCollisionMoveEvent takes an array of <b>MoveEvent</b>s and repeatedly
 * executes them until the event in question collides into something. This is
 * done by comparing the location of the event before and after the MoveEvents execute.
 * Because of this, MoveEvent arrays that do not move the event will not block the
 * game.
 * 
 * @author hatkirby
 */
public class LoopUntilCollisionMoveEvent implements MoveEvent {
    
    private Point loc;
    private MoveEvent[] moves;
    
    public LoopUntilCollisionMoveEvent(MoveEvent[] moves)
    {
        this.moves = moves;
    }

    public void doAction(Event ev)
    {
        loc = new Point();
        
        while ((loc == null) || (!loc.equals(ev.getLocation())))
        {
            loc.setLocation(ev.getLocation());
            
            for (MoveEvent move : moves)
            {
                move.doAction(ev);
            }
        }
    }

}