private Animation createmissleAnim(Image img1, Image img2, Image img3, Image img4) {
        Animation anim = new Animation();
        anim.addFrame(img1, 50);
        anim.addFrame(img2, 50);
        anim.addFrame(img3, 50);
        anim.addFrame(img4, 50);
        return anim;
    }