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Version 4.0 ...The Smart Can Give You Solutions version 4.0 ...the smart can give you solutions, ...the intelligent can give you answers, ...but, alas, the wise can only give you questions. Table of Contents About the author.........................................................................................................................................5 About this document...................................................................................................................................6 License........................................................................................................................................................6 Design.........................................................................................................................................................6 Acknowledgments......................................................................................................................................7 Introduction.................................................................................................................................................8 Source code...............................................................................................................................................9 Chapter 1: Theory.....................................................................................................................................10 What is a game?.........................................................................................................................................10 So what are video games then?..................................................................................................................10 How a videogame is created......................................................................................................................10 2D graphic design......................................................................................................................................12 3D graphic design......................................................................................................................................13 Audio design..............................................................................................................................................14 So many tools and so little time!................................................................................................................14 Game programming...................................................................................................................................15 The most important component to include in your video game: FUN!......................................................16 Chapter 2: Decision time..........................................................................................................................17 What programming language should I use for my game?..........................................................................17 Game engines............................................................................................................................................18 DirectX (Direct3D) versus OpenGL..........................................................................................................21 Final recommendations..............................................................................................................................22 My (very) own personal decision .............................................................................................................22 Chapter 3: Making a 2D game.................................................................................................................24 Computer game flow.................................................................................................................................24 Setting up the development environment...................................................................................................25 Making a puzzle game with GTGE............................................................................................................25 Chapter 4: Making a 2D multiplayer game...............................................................................................33 Networking basics.....................................................................................................................................33 Game server...............................................................................................................................................35 Puzzle game - multiplayer version.............................................................................................................35 Chapter 5: 3D games...............................................................................................................................39 3D basics...................................................................................................................................................39 Chapter 6: Making a 3D game.................................................................................................................43 Step 1: Prepare an empty screen................................................................................................................45 Step 2: Loading a map...............................................................................................................................46 Step 3: Moving around the map.................................................................................................................47 Step 4: Checking collisions........................................................................................................................47 Step 5: Adding the apple............................................................................................................................48 Step 6: Game Loop....................................................................................................................................48 Step 7: Final version of the game..............................................................................................................50 Chapter 7: Making a 2D multiplayer game - version 2.............................................................................53 A better network library.............................................................................................................................53 Why UDP?................................................................................................................................................54 Adding the ummi network library to the puzzle game...............................................................................54 Chapter 8: Making a 3D multiplayer game...............................................................................................58 Apple Chase - multiplayer design..............................................................................................................58 Making some improvements to our 3D game............................................................................................58 Adding server-side game logic..................................................................................................................59 Updating the game client...........................................................................................................................60 What's next?.............................................................................................................................................65 Appendix A: Extra Resources...................................................................................................................66 Library.......................................................................................................................................................66 Resources..................................................................................................................................................69 Appendix B: How to setup Slick framework with Eclipse.........................................................................71 Appendix C: How to setup GTGE inside Eclipse IDE..............................................................................79 Appendix D: How to setup Xith3D inside Eclipse IDE..............................................................................82 Installing the support libraries...................................................................................................................82 Adding Xith3D’s own files........................................................................................................................83 Adding the native libraries.........................................................................................................................84 Making sure Xith3D is installed correctly.................................................................................................86 Appendix E: Xith3D scenegraph..............................................................................................................87 Lucu guide for creating videogames – page 4 About the author Henry Tong (a.k.a. “Taksan”) is a software architect, who, as part of his job has used different computer technologies (not all of them voluntarily) in different software development projects. When he is not creating software for a bank or an enterprise
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