@Override
    public void mouseClicked(MouseEvent arg0) {
      ObjetTT contenu;
      Point2D pointUsable = getPhysicPoint(arg0.getX(), arg0.getY());
      int i = (int) (pointUsable.getX());
      int j = (int) (pointUsable.getY());

      contenu = physics.detail(i, j);
      if (contenu.getType() == Physique.type.tank) {
        highlightTank = (Tank) contenu;
        triggerTankSelectionListeners((DTank) contenu);
      } else highlightTank = null;
    }