public Camera2D(Options ri)
        {
            RI = ri;

            _zoom = 0.1f;
            _rotation = 0.0f;
            _position = Vector2.Zero;
        }
 public static void Initialise(Game game, ref GraphicsDeviceManager gdm)
 {
     if (instance == null)
     {
         lock (syncRoot)
         {
             if (instance == null)
             {
                 instance = new Options(game,ref gdm);
             }
         }
     }
 }