XNA Teil 3 Game Code

public class FistsOfFireGame : Microsoft.Xna.Framework.Game
{
    GraphicsDeviceManager graphics;

    public FistsOfFireGame()
    {
        graphics = new GraphicsDeviceManager(this);
        Content.RootDirectory = "Content";

        graphics.PreferredBackBufferHeight = 800;
        graphics.PreferredBackBufferWidth = 800;

        ScreenManager sceneManager = new ScreenManager(this);
        GameManager gameManager = new GameManager(this);
        InputHandler inputHandler = new InputHandler(this);

        Components.Add(sceneManager);
        Components.Add(gameManager);

        // der update des inputmanagers soll als letztes aufgerufen werden!
        Components.Add(inputHandler);

        Services.AddService<IScreenManager>(sceneManager);
        Services.AddService<IGameManager>(gameManager);
        Services.AddService<IInputManager>(inputHandler);
    }

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

        var screenManager = Services.GetService<IScreenManager>();
        screenManager.PushScreen<StartScreen>();
    }
}