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Want to start building great web games with HTML5 and JavaScript? Moving from Flash or other game platforms? Already building HTML5 games and want to get better and faster at it? This guide brings together everything you need: expert guidance, sample projects, and working code! Evan Burchard walks you step-by-step through quickly building 10 popular types of games. Each chapter implements a game within a well-understood genre; introduces a different free, open source, and easy-to-use HTML5 game engine; and is accompanied with full JavaScript source code listings. Each game recipe uses tested and well-proven patterns that address the development challenges unique to that genre, and shows how to use existing tools and engines to build complete substantial game projects in just hours. Need a quick JavaScript primer? Evan Burchard provides that, too! Coverage includes * Mastering an essential HTML5/JavaScript game development toolset: browser, text editor, terminal, JavaScript console, game engine, and more * Accelerating development with external libraries and proven patterns * Managing browser differences between IE, Firefox, and Chrome * Getting up to speed on web development with a QUIZ game built with JavaScript, HTML, CSS, and JQuery * Creating INTERACTIVE FICTION "gamebooks" that leverage new CSS3 features and impress.js * Building PARTY games around the lightweight atom.js engine * Developing PUZZLE games with the easel.js graphics rendering engine * Writing PLATFORMERS with melon.js and its integrated tilemap editor * Coding intense 2-player FIGHTING games for web browsers with game.js * Building a SPACE SHOOTER with the jQuery-based gameQuery game engine * Implementing pseudo-3D techniques like ray casting for an FPS (First Person Shooter) style game * Producing a 16 bit RPG (Role Playing Game) complete with interfaces for dialog, inventories, and turn-based battles with enchant.js * Building an isometric RTS (Real Time Strategy) game that incorporates server components along with node.js, socket.io, and crafty.js * Engaging players with content that encourages exploration Turn to The Web Game Developer's Cookbook for proven, expert answers-and the code you need to implement them. It's all you need to jumpstart any web game project!
Contents
Preface xiv Acknowledgments xv About the Author xvi Introduction 1 Audience for This Book 2 Coding Style Conventions Used In This Book 2 How This Book Is Organized 3 How To Use This Book 4 1 Quiz 5 Recipe: Making the Questions 6 Recipe: Hiding and Showing Your Quiz 12 Recipe: Getting Your Questions Back 14 Recipe: The Shopping List 16 Recipe: Which Answers Are Correct? 21 Summary 24 2 Interactive Fiction (Zork, Choose Your Own Adventure Books) 27 Recipe: Styled Pages 28 Recipe: Goto Page 32 Recipe: Adding an Inventory with Drag and Drop 35 Recipe: Adding Complex Interactions 43 Recipe: Breadcrumb Trail 53 Recipe: A Dramatic Ending 56 Summary 58 3 Party (Rock Band, Mario Party) 59 Recipe: Creating a Sample Game in atom.js 60 Recipe: Drawing with Canvas 65 Recipe: Drawing Holes 67 Recipe: Drawing a Mole 70 Recipe: Putting the Moles in the Holes 73 Recipe: Dynamic Mole Peeking 77 Recipe: Bopping Moles 78 Wallowing in Despair with HTML5's tag 82 Summary 84 4 Puzzle (Bejeweled) 85 Recipe: Rendering with easel.js 87 Recipe: Rendering More Than One Thing 91 Recipe: Creating Pairs 95 Recipe: Matching and Removing Pairs 97 Recipe: Hiding and Flipping the Pictures 100 Recipe: Winning and Losing 102 Recipe: Caching and Performance 106 Recipe: Matching Pairs Instead of Duplicates 109 Summary 115 5 Platformer (Super Mario Bros, Sonic the Hedgehog) 117 Getting Started with melon.js 118 Recipe: Creating a Tiled Map 118 Recipe: Starting the Game 120 Recipe: Adding a Character 124 Recipe: Building a Collision Map 127 Recipe: Walking and Jumping 128 Recipe: Title Screen 129 Recipe: Adding Collectables 131 Recipe: Enemies 133 Recipe: Powerups 135 Recipe: Losing, Winning, and Information 136 Summary 138 6 Fighting (Street Fighter II) 141 Recipe: Getting Started with game.js 142 Recipe: Accessing Individual Sprites from a Spritesheet 145 Recipe: Handling Input from Two Players 147 Recipe: Moving and Changing Forms 150 Recipe: Nonblocking Input 154 Recipe: Implementing Bitmasks 157 Recipe: Masking Collisions 161 Recipe: Giving and Taking Damage 164 Summary 170 7 Shooter (Gradius) 171 Some Background Info on Rendering 172 Recipe: Getting Started with gameQuery 174 Recipe: Adding "Enemies" 176 Recipe: Making Your Ship 180 Recipe: Enemy Collisions 183 Recipe: Shooting 184 Recipe: Powerups 187 Summary 190 8 FPS (Doom) 193 Recipe: Getting Started with Jaws 194 Recipe: Creating a 2-D Map 196 Recipe: Adding a Player 199 Recipe: Raycasting Top View 203 Recipe: Fake 3D with Raycasting 208 Recipe: Adding a Camera 212 Recipe: Making the World a More Photogenic Place 216 Recipe: Adding a Friend or Foe 221 Summary 229 9 RPG (Final Fantasy) 231 Recipe: Getting Started with enchant.js 232 Recipe: Creating a Map 233 Recipe: Adding the Player 237 Recipe: Adding a Collision Layer 243 Recipe: Status Screen 244 Recipe: Talking to NPCs 248 Recipe: Creating an Inventory 251 Recipe: Creating a Shop 254 Recipe: Creating a Battle Interface 263 Recipe: Saving Your Game with HTML5's Local Storage API 274 Summary 277 10 RTS (Starcraft) 279 We Need a Server 280 Recipe: Getting Node 282 Recipe: Real Time with Socket.io 285 Recipe: Creating an Isometric Map with crafty.js 288 Recipe: Drawing the Units 291 Recipe: Moving Units 295 Recipe: Player Specific Control and Visibility 299 Recipe: Collisions for Destruction and Revelation 305 Summary 310 11 Leveling Up 313 What Happened? 314 What's Next? 314 A JavaScript Basics 317 Main Types of APIs in JavaScript 318 The Native API 318 The Implementation API 318 A Library API 318 Your API 319 Statements 319 Variables 319 Strings 320 Numbers 320 Arrays 321 Functions 321 Objects 322 Conditionals 323 Loops 323 Comments 324 B Quality Control 325 Browser Debugging Tools 326 Testing 328 Collaboration for Better Code 329 C Resources 331 Game Engines 332 Text Editors 333 Browsers 334 Assorted Tools 334 Art Creation/Finding 335 Demos and Tutorials 336 Books 336 Websites 337 Index 339
