public BasicShip(BasicShip bs, Vecteur2D dec)
     : this(dec, bs.live, bs.img,bs.speedMisile)
 {
 }
        public void addLine(int width, int nbShips,BasicShip bs)
        {
            if (bs == null) {
                return;
            }

            int positionYToDaw=  s.Height ;

            int toutLes = width / nbShips;

            for (int i = 0; i < nbShips; i++) {
                listSpaceship.Add(new BasicShip(bs , new IndirectVecteur2D(this.position,i*toutLes,positionYToDaw)));
            }

            s.Height +=   20 + bs.img.Height;
            if (s.Width < width)
                 s.Width= width;
        }