private void init() {
		this.range = 1000;
		this.speed = 12;
		this.damage = 10;
		this.firerate = 15;

		xa = Math.cos(angle) * speed;
		ya = Math.sin(angle) * speed;

		this.sprite = Sprite.createSprite(5, 5, 0xffff0000);

		if (checkCollision((int) (xx + xa), (int) (yy + ya))) {
			xa = 0;
			ya = 0;
		}
	}