/// <summary>
/// Allows the game to perform any initialization it needs to
/// before starting to run. This is where it can query for any required
/// services and load any non-graphic related content. Calling base.Initialize
/// will enumerate through any components and initialize them as well.
/// </summary>
protected override void Initialize()
{
InputManager.Initialize();
base.Initialize();
TileEngine.Viewport = graphics.GraphicsDevice.Viewport;
screenManager.AddScreen(new MainMenuScreen());
}