protected override void LoadContent()
{
IsMouseVisible = false;
_viewportAdapter = new BoxingViewportAdapter(Window, GraphicsDevice, 800, 480);
_camera = new Camera2D(_viewportAdapter);
_spriteBatch = new SpriteBatch(GraphicsDevice);
_backgroundTexture = Content.Load <Texture2D>("Textures/colored_castle");
var titleScreen = GuiScreen.FromFile(Content, @"Content/title-screen.json");
var guiRenderer = new GuiSpriteBatchRenderer(GraphicsDevice, _camera.GetViewMatrix);
_guiSystem = new GuiSystem(_viewportAdapter, guiRenderer)
{
Screens = { titleScreen }
};
var quitButton = titleScreen.FindControl <GuiButton>("QuitButton");
quitButton.Clicked += (sender, args) => _game.Back();
}
