protected override void Initialize()
        {
            base.Initialize();

            // the default viewport adapater is the simplest, it doesn't do any scaling at all
            // but is used by a Camera2D if no other adapter is specified.
            // this is often useful if you have a game with a large map and you want the player to see 
            // more of the map on a bigger screen.
            _defaultViewportAdapter = new DefaultViewportAdapter(GraphicsDevice);

            // the scaling viewport adapter stretches the output to fit in the viewport, ignoring the aspect ratio
            // this works well if the aspect ratio doesn't change a lot between devices 
            // or you don't like the black bars of the boxing adapter
            _scalingViewportAdapter = new ScalingViewportAdapter(GraphicsDevice, 800, 480);

            // the boxing viewport adapter uses letterboxing or pillarboxing to maintain aspect ratio
            // it's a little more complicated and needs to listen to the window client size changing event
            _boxingViewportAdapter = new BoxingViewportAdapter(GraphicsDevice, 800, 480);

            Window.ClientSizeChanged += (s, e) => _currentViewportAdapter.OnClientSizeChanged(); 
            
            // typically you'll only ever want to use one viewport adapter for a game, but in this sample we'll be 
            // switching between them.
            _currentViewportAdapter = _boxingViewportAdapter;
        }
        protected override void LoadContent()
        {
            _spriteBatch = new SpriteBatch(GraphicsDevice);
            _bitmapFont = Content.Load<BitmapFont>("montserrat-32");
            _tiledMap = Content.Load<TiledMap>("level01");

            var viewportAdapter = new ScalingViewportAdapter(GraphicsDevice, 800, 480);
            _camera = new Camera2D(viewportAdapter)
            {
                Zoom = 0.5f,
                Position = new Vector2(_tiledMap.WidthInPixels / 4f, _tiledMap.HeightInPixels / 4f)
            };
        }