/*
	 * Responsible to update shots
	 */
	public void updateShots() {
		Iterator<Bullet> itr = mBullets.iterator();
		while(itr.hasNext()) {
			Bullet bullet = itr.next();
			bullet.update();
			if(bullet.isDead()) {
				bullet.recycle();
				itr.remove();
			}
		}
	}