Monogame Introduction (ENG)
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MONOGAME is an open-source and cross-platform framework that allows for cross-platform native mobile development using C# and .NET. It is a reimplementation of the abandoned XNA framework and is mainly used for 2D game development. It provides APIs for graphics, audio, input handling and more. Games developed with MONOGAME can be deployed to Android, iOS, Windows and more. The framework uses a main game loop with methods for initializing, loading content, updating and drawing each frame. It supports common game elements like sprites, tiles, animations, cameras and physics.
Monogame Introduction (ENG)
- 1. MONOGAMECross-Platform Native Mobile Development in Paris Aloïs DENIEL @aloisdeniel 07/09/2016
- 2. Technical Leader Xamarin My job Aloïs DENIEL alois.deniel@orange.com @aloisdeniel Why? That was my first experience with C# Different from common UI development Based sur Xamarin Adapted to different needs Where? Orange Applications for Business Rennes
- 3. The framework MONOGAME Xamarin.NET DirectX OpenGL SharpDX SDL2 Open-source and cross-platform re-implementation of the XNA framework, abandonned by Microsoft few years ago. It is mainly used in game industry, for 2D games.
- 4. Renowned productions Cross-platform games Towerfall FEZ Bastion Infinite FlightTransistor Mercenary Kings
- 5. Outils et APIs MONOGAME Xamarin / .NET C#Visual Studio Xamarin Studio Monogame Content Pipeline PNG WAV MP3 Font
- 6. Main cycle DrawUpdateInitialize LoadContent Real time rendering Inputs
- 7. Main cycle Main class: Game public class Game : Idisposable { // … protected virtual void Initialize (); protected virtual void LoadContent (); protected virtual void Update (GameTime time); protected virtual void Draw (GameTime time); }
- 10. ContentManager Resource container this.Content.RootDirectory = "Content"; protected override void LoadContent() { this.ballTexture = this.Content.Load<Texture2D>("assets"); }
- 12. protected override void LoadContent() { this.texture = Content.Load<Texture2D>("assets"); } Load textures From images
- 13. protected override void Draw (GameTime gameTime) { graphics.GraphicsDevice.Clear(Color.Black); spriteBatch.Begin(SpriteSortMode.Immediate); spriteBatch.Draw(this.texture, this.position1, Color.White); spriteBatch.Draw(this.texture, this.position2, Color.White); spriteBatch.Draw(this.texture, this.position3, Color.White); spriteBatch.End(); Spritebatch Begin Draw Draw Draw End
- 14. Tiles 1 2 3 1 1 1 2 3 3 Image portions
- 15. Tiles var source = new Rectangle(50,0,50,50); var destination = new Rectangle(150,0,50,50); spriteBatch.Draw(this.tiles, sourceRectangle: source, destinationRectangle: destination); Source 2 Destination tiles.png Image portions
- 16. Animations t=1 t=2 Changing the source dynamically
- 21. Camera Var transform = Matrix.CreateTranslation(new Vector3(-100,0,0)) * Matrix.CreateRotationZ(0.05f) * Matrix.CreateScale(new Vector3(2,2,1)); spriteBatch.Begin(transformMatrix: transform); Matrix maths Ecran
- 22. this.font = Content.Load<SpriteFont>("font"); Polices de caractères Chargement et affichage spriteBatch.DrawString(this.font,"Hello World", new Vector2(20,20));
- 24. MediaPlayer MediaPlayer.Play(song); MediaPlayer.IsRepeating = true; MediaPlayer.Pause(); Musics this.song = Content.Load<Song>("music");
- 27. User inputs var state = Mouse.GetState(); state.X , state.Y, state.LeftButton, state.RightButton, … var state = Keyboard.GetState(); state.IsKeyDown(Key.A), … var state = GamePad.GetState(PlayerIndex.One); state.IsButtonDown(Buttons.A), state.ThumbSticks.Left, … var state = TouchPanel.GetState(); state.First().Position, state.First().Id, state.First().Pressure, …
- 28. Manage irregularity update draw update draw update draw temps dt = 50ms dt = 20ms this.ballPosition += new Vector2(0, (float)gameTime.ElapsedTime.TotalSeconds * Ball.Speed)
- 29. Physics origine destination théorique destination obstacle collision AABB Collisions origine Moves / Gravity A = M * (0, 9.8) V += A * delta P += 0.5 * V * delta * delta Simulate a world
- 30. Entity/Component/System Commonly used (i.e Unity3D) Player int X { get; set; } int Y { get; set; } Texture2D Texture { get; set; } float Health { get; set; } void Update(int time); void Draw(); Development pattern Entity int X { get; set; } int Y { get; set; } PositionComponent float Health { get; set; } HealthComponent string Texture { get; set; } Rectangle Source { get; set; } Rectangle Destination{ get; set; } SpriteComponent RenderSystem RulesSystem void Draw(); void Update(int time); Int Identifier { get; set; }
- 33. Solutions Tiled + TiledSharp Map tile manager Entitas Entity/Component/System Framework Farseer Advanced physics simulation Monocle Engine Engine (by Matt Thorson, Towerfall creator) Frameworks Other platforms Unity Advanced tools (licences) https://github.com/aloisdeniel/awesome-monogame
- 34. Start! Different project architecture from UI projects Expand your horizons: maths, physics, draw, audio, video, code Start from simple APIs and grow with your own logic Be creative Start simple