Comment Feed for Channel 9 - Asteroids, C#, 3D and OpenGL http://files.channel9.msdn.com/thumbnail/2a9ffea8-d499-4e74-b58e-8f64e9ef042f.png Channel 9 - Asteroids, C#, 3D and OpenGL Today's project is a simple example of using OpenGL, C#/WinForm to build a introductory game. What I liked about it is that it really is pretty simple, simple to follow the code, simple to understand and simply easy to get started with... A Basic 3D Asteroid Game in openGL with C#This article is intended for beginners who want to start with 3D game programming and don’t know where to start. It is programmed in Opengl using VS 2008 and a small graphic engine I made myself called Shadowengine. It has the basics of what a game should have: a Score, levels of difficulty and a life counter. All this is written in a small number of code lines, with the objective of being simple and understandable. The first problem I had to achieve is the scene to look like outer space. For that issue, I set the background color to black. In opengl, it is set this way: ... The score is a number which increases over time and it grows faster everytime I pass a level. The level increases every 450 frames. The last issue I had to address is the problem of asteroid collision. I make for the ship three positions (one for the ship and two for the wings) and every once in a while, I check the distance between all the asteroids and those three positions. If it is under a predefined value, I execute the collision event. The project has 6 classes: AsteroidGenerator.cs - It handles the creation of asteroids in random places and with random sizes and speeds. It also has the method to query whether or not there has been a collision between the spaceship and an asteroid. Asteroid.cs - It handles all concerning an asteroid such as the movement, texture selection, drawing, among others. Star.cs - It has a method to create random white points and to draw them. Camera.cs - It handles the selection of the user camera and to set the right perspective view of the scene. SpaceShip.cs - This class contains all methods and attributes regarding the spaceship, such as movement, drawing, etc. Controller.cs - This class manages the game creation, game logic and contains all the classes needed to run the game. Here is a portion of code: ... Main.cs - This is the form which contains this visual components of the game. It contains the controller class and gives the player information through proper windows controls. It has a timer to periodically draw the scene and has the code for texture and object loading. ... While written for VS2008, for me it loaded in VS2010 just fine (once it converted). Once loaded it compiled and ran the first time... The game is very simple. Using WASD you move your ship to avoid the oncoming asteroids. And while the comments/strings are not in English the code is easy enough to understand; public Main() { InitializeComponent(); hdc = (uint)pnlViewPort.Handle; string error = ""; //Comando de inicializacion de la ventana grafica OpenGLControl.OpenGLInit(ref hdc, pnlViewPort.Width, pnlViewPort.Height, ref error); //inicia la posicion de la camara asi como define en angulo de perspectiva,etc etc controladora.Camara.SetPerspective(); if (error != "") { MessageBox.Show("Something happened"); } #region lights //Configuracion de las luces float[] materialAmbient = { 0.5F, 0.5F, 0.5F, 1.0F }; float[] materialDiffuse = { 1f, 1f, 1f, 1.0f }; float[] materialSpecular = { 1.0F, 1.0F, 1.0F, 1.0F }; //brillo del material float[] materialShininess = { 1.0F }; //posicion de la luz float[] ambientLightPosition = { 10F, -10F, 10F, 1.0F }; // intensidad de la luz en RGB float[] lightAmbient = { 0.85F, 0.85F, 0.85F, 1.0F }; Lighting.MaterialAmbient = materialAmbient; Lighting.MaterialDiffuse = materialDiffuse; Lighting.MaterialSpecular = materialSpecular; Lighting.MaterialShininess = materialShininess; Lighting.AmbientLightPosition = ambientLightPosition; Lighting.LightAmbient = lightAmbient; #endregion //Habilita las luces Lighting.SetupLighting(); //cargar texturas ContentManager.SetModelList("modelos\\"); ContentManager.LoadModels(); ContentManager.SetTextureList("texturas\\"); ContentManager.LoadTextures(); //AudioPlayback.SoundDir = "sonidos\\"; //AudioPlayback.LoadSounds(); controladora.CreateObjects(); //Color de fondo Gl.glClearColor(0, 0, 0, 1);//red green blue alpha Gl.glShadeModel(Gl.GL_SMOOTH); } private void tmrPaint_Tick(object sender, EventArgs e) { // limpia opengl Gl.glClear(Gl.GL_COLOR_BUFFER_BIT | Gl.GL_DEPTH_BUFFER_BIT); //dibuja la escena controladora.DrawScene(); //cambia los buffer Winapi.SwapBuffers(hdc); //termina de pintar Gl.glFlush(); if (started) { score += 1; count1++; count2++; levelCount++; if (levelCount == 450) { level++; AsteroidGenerator.GenerateAsteroid(35, false); lblLevel.Text = level.ToString(); levelCount = 0; } if (count1 == 4) { lblScore.Text = score.ToString(); count1 = 0; lives = controladora.Nave.Vidas; } if (count2 == 20) { ShowLife(lives); count2 = 0; if (lives == 0) { started = false; MessageBox.Show("Game Over"); controladora.ResetGame(); score = 0; level = 1; lives = 3; started = true; count1 = 0; count2 = 0; lblLevel.Text = level.ToString(); } } } } If you've thought about writing a 3D game, be it space or not, this project might be a good starting place for you... en Sat, 18 May 2013 17:22:06 GMT Sat, 18 May 2013 17:22:06 GMT Rev9 Re: Asteroids, C#, 3D and OpenGL since this is in C# could this be converted to a Windows Phone game?

posted by Omega_Ra

]]> http://channel9.msdn.com/coding4fun/blog/Asteroids-C-3D-and-OpenGL#c634655179503948247 Wed, 22 Feb 2012 14:32:30 GMT http://channel9.msdn.com/coding4fun/blog/Asteroids-C-3D-and-OpenGL#c634655179503948247 Omega_Ra Re: Asteroids, C#, 3D and OpenGL posted by JasonK

]]> http://channel9.msdn.com/coding4fun/blog/Asteroids-C-3D-and-OpenGL#c634655397378331584 Wed, 22 Feb 2012 20:35:37 GMT http://channel9.msdn.com/coding4fun/blog/Asteroids-C-3D-and-OpenGL#c634655397378331584 JasonK Re: Asteroids, C#, 3D and OpenGL Yup, "OpenGL ES" Wink But on Windows Phone? ermm... don't think so, no.

posted by Gunslinger_x

]]> http://channel9.msdn.com/coding4fun/blog/Asteroids-C-3D-and-OpenGL#c634655425265365749 Wed, 22 Feb 2012 21:22:06 GMT http://channel9.msdn.com/coding4fun/blog/Asteroids-C-3D-and-OpenGL#c634655425265365749 Gunslinger_x Re: Asteroids, C#, 3D and OpenGL Does anyone else find it poignant that this sample is using OpenGL rather than DirectX?

Microsoft should actively support and promote a world class .NET API for DirectX running on desktop PCs.

posted by geoMcC

]]> http://channel9.msdn.com/coding4fun/blog/Asteroids-C-3D-and-OpenGL#c634664951264378916 Sun, 04 Mar 2012 21:58:46 GMT http://channel9.msdn.com/coding4fun/blog/Asteroids-C-3D-and-OpenGL#c634664951264378916 geoMcC Re: Asteroids, C#, 3D and OpenGL Does anyone else find it poignant that this project uses OpenGL rather than DirectX?

Microsoft should actively support and promote a world class .NET API for DirectX.

posted by geoMcC

]]> http://channel9.msdn.com/coding4fun/blog/Asteroids-C-3D-and-OpenGL#c634664958427037574 Sun, 04 Mar 2012 22:10:42 GMT http://channel9.msdn.com/coding4fun/blog/Asteroids-C-3D-and-OpenGL#c634664958427037574 geoMcC Re: Asteroids, C#, 3D and OpenGL posted by Drinkfloridaoj

]]> http://channel9.msdn.com/coding4fun/blog/Asteroids-C-3D-and-OpenGL#c634665929364960726 Tue, 06 Mar 2012 01:08:56 GMT http://channel9.msdn.com/coding4fun/blog/Asteroids-C-3D-and-OpenGL#c634665929364960726 Drinkfloridaoj Re: Asteroids, C#, 3D and OpenGL @geoMcC: I think it's good that you can have your pick of 3D platforms when working with C# and I welcome OpenGL to the pool. Besides, I though Microsoft were in fact actively supporting and promoting XNA Game Studio - the official DirectX API for managed code. Whether XNA is "world class", I honestly wouldn't know...

posted by helgihaf

]]> http://channel9.msdn.com/coding4fun/blog/Asteroids-C-3D-and-OpenGL#c634666211250947215 Tue, 06 Mar 2012 08:58:45 GMT http://channel9.msdn.com/coding4fun/blog/Asteroids-C-3D-and-OpenGL#c634666211250947215 helgihaf Re: Asteroids, C#, 3D and OpenGL posted by Vasily Tserekh

]]> http://channel9.msdn.com/coding4fun/blog/Asteroids-C-3D-and-OpenGL#c634666929510394079 Wed, 07 Mar 2012 04:55:51 GMT http://channel9.msdn.com/coding4fun/blog/Asteroids-C-3D-and-OpenGL#c634666929510394079 Vasily Tserekh Re: Asteroids, C#, 3D and OpenGL posted by Chairperson

]]> http://channel9.msdn.com/coding4fun/blog/Asteroids-C-3D-and-OpenGL#c634667142767908824 Wed, 07 Mar 2012 10:51:16 GMT http://channel9.msdn.com/coding4fun/blog/Asteroids-C-3D-and-OpenGL#c634667142767908824 Chairperson Re: Asteroids, C#, 3D and OpenGL 大家好呀！

posted by Chairperson

]]> http://channel9.msdn.com/coding4fun/blog/Asteroids-C-3D-and-OpenGL#c634667143559390268 Wed, 07 Mar 2012 10:52:35 GMT http://channel9.msdn.com/coding4fun/blog/Asteroids-C-3D-and-OpenGL#c634667143559390268 Chairperson Re: Asteroids, C#, 3D and OpenGL posted by WhiteAngel

]]> http://channel9.msdn.com/coding4fun/blog/Asteroids-C-3D-and-OpenGL#c634669764622193284 Sat, 10 Mar 2012 11:41:02 GMT http://channel9.msdn.com/coding4fun/blog/Asteroids-C-3D-and-OpenGL#c634669764622193284 WhiteAngel Re: Asteroids, C#, 3D and OpenGL @WhiteAngel:If you click through to the article, you can download it there...

posted by gduncan411

]]> http://channel9.msdn.com/coding4fun/blog/Asteroids-C-3D-and-OpenGL#c634669955493787274 Sat, 10 Mar 2012 16:59:09 GMT http://channel9.msdn.com/coding4fun/blog/Asteroids-C-3D-and-OpenGL#c634669955493787274 gduncan411 Re: Asteroids, C#, 3D and OpenGL posted by avatar hd

]]> http://channel9.msdn.com/coding4fun/blog/Asteroids-C-3D-and-OpenGL#c634685010200504286 Wed, 28 Mar 2012 03:10:20 GMT http://channel9.msdn.com/coding4fun/blog/Asteroids-C-3D-and-OpenGL#c634685010200504286 avatar hd Re: Asteroids, C#, 3D and OpenGL
I can't use "quote" function. why ?

posted by avatar hd

]]> http://channel9.msdn.com/coding4fun/blog/Asteroids-C-3D-and-OpenGL#c634685011516963113 Wed, 28 Mar 2012 03:12:31 GMT http://channel9.msdn.com/coding4fun/blog/Asteroids-C-3D-and-OpenGL#c634685011516963113 avatar hd Re: Asteroids, C#, 3D and OpenGL posted by Stephen

]]> http://channel9.msdn.com/coding4fun/blog/Asteroids-C-3D-and-OpenGL#c634685591905447391 Wed, 28 Mar 2012 19:19:50 GMT http://channel9.msdn.com/coding4fun/blog/Asteroids-C-3D-and-OpenGL#c634685591905447391 Stephen Re: Asteroids, C#, 3D and OpenGL http://www.codeproject.com/Tips/357063/A-very-simple-car-race-game-in-Csharp-and-OpenGL

posted by Vasily Tserekh

]]> http://channel9.msdn.com/coding4fun/blog/Asteroids-C-3D-and-OpenGL#c634689060056414719 Sun, 01 Apr 2012 19:40:05 GMT http://channel9.msdn.com/coding4fun/blog/Asteroids-C-3D-and-OpenGL#c634689060056414719 Vasily Tserekh Re: Asteroids, C#, 3D and OpenGL

posted by Herbit

]]> http://channel9.msdn.com/coding4fun/blog/Asteroids-C-3D-and-OpenGL#c634699146091966834 Fri, 13 Apr 2012 11:50:09 GMT http://channel9.msdn.com/coding4fun/blog/Asteroids-C-3D-and-OpenGL#c634699146091966834 Herbit Re: Asteroids, C#, 3D and OpenGL posted by TOXA

]]> http://channel9.msdn.com/coding4fun/blog/Asteroids-C-3D-and-OpenGL#c634702737415839493 Tue, 17 Apr 2012 15:35:41 GMT http://channel9.msdn.com/coding4fun/blog/Asteroids-C-3D-and-OpenGL#c634702737415839493 TOXA