/**
 * Curso Básico de desarrollo de Juegos en Java - Invaders
 * 
 * (c) 2004 Planetalia S.L. - Todos los derechos reservados. Prohibida su reproducción
 * 
 * http://www.planetalia.com
 * 
 */
package version20;


public class Bomb extends Actor {
	public static final int UP_LEFT = 0;
	public static final int UP = 1;
	public static final int UP_RIGHT = 2;
	public static final int LEFT = 3;
	public static final int RIGHT = 4;
	public static final int DOWN_LEFT = 5;
	public static final int DOWN = 6;
	public static final int DOWN_RIGHT = 7;
	
	protected static final int BOMB_SPEED = 5; 
	protected int vx;
	protected int vy;
	
	public Bomb(Stage stage, int heading, int x, int y) {
		super(stage);
		this.x = x;
		this.y = y;
		String sprite ="";
		switch (heading) {
			case UP_LEFT : vx = -BOMB_SPEED; vy = -BOMB_SPEED; sprite="bombUL.gif";break;
			case UP : vx = 0; vy = -BOMB_SPEED; sprite="bombU.gif";break;
			case UP_RIGHT: vx = BOMB_SPEED; vy = -BOMB_SPEED; sprite="bombUR.gif";break;
			case LEFT : vx = -BOMB_SPEED; vy = 0; sprite = "bombL.gif";break;
			case RIGHT : vx = BOMB_SPEED; vy = 0; sprite = "bombR.gif";break;
			case DOWN_LEFT : vx = -BOMB_SPEED; vy = BOMB_SPEED; sprite="bombDL.gif";break;
			case DOWN : vx = 0; vy = BOMB_SPEED; sprite = "bombD.gif";break;
			case DOWN_RIGHT : vx = BOMB_SPEED; vy = BOMB_SPEED; sprite = "bombDR.gif";break;
		}   
		setSpriteNames( new String[] {sprite});
	}
	
	public void act() {
		super.act();
		y+=vy;
		x+=vx;
		if (y < 0 || y > Stage.HEIGHT || x < 0 || x > Stage.WIDTH)
		  remove();
	}
}