MonoGame.Extended/Source/Demos/Pong/GameMain.cs

using System;
using Microsoft.Xna.Framework;
using MonoGame.Extended;
using MonoGame.Extended.Screens;
using MonoGame.Extended.Screens.Transitions;
using Pong.Screens;

namespace Pong
{
    public class GameMain : Game
    {
        // ReSharper disable once NotAccessedField.Local
        private readonly GraphicsDeviceManager _graphics;
        private readonly ScreenManager _screenManager;

        public GameMain()
        {
            _graphics = new GraphicsDeviceManager(this)
            {
                PreferredBackBufferWidth = 800,
                PreferredBackBufferHeight = 480,
                SynchronizeWithVerticalRetrace = false
            };

            Content.RootDirectory = "Content";
            IsFixedTimeStep = true;
            TargetElapsedTime = TimeSpan.FromSeconds(1f / 60f);

            _screenManager = Components.Add<ScreenManager>();
        }

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

            _screenManager.LoadScreen(new TitleScreen(this), new FadeTransition(GraphicsDevice, Color.Black, 0.5f));
        }
    }
}