public Craft(int difficulty) 
    {
        
        craft    = "Assets/Images/craft.png";
        visible  = true;
        mode     = difficulty;
        ii       = new ImageIcon(this.getClass().getResource(this.craft));
        image    = this.ii.getImage();
        width    = this.image.getWidth(null);
        height   = this.image.getHeight(null);
        missiles = new ArrayList();
        x        = 100;
        y        = 100;
    }