HTML5 Games (häftad)
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Häftad (Paperback / softback)
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2nd Edition
John Wiley & Sons Inc
black & white tables black & white illustrations figures
black & white illustrations, black & white tables, figures
234 x 184 x 25 mm
748 g
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HTML5 Games (häftad)

HTML5 Games

Creating Fun with HTML5, CSS3 and WebGL

Häftad Engelska, 2014-05-07
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HTML5 Gamesshows you how to combine HTML5, CSS3 and JavaScript to make games for the web and mobiles - games that were previously only possible with plugin technologies like Flash. Using the latest open web technologies, you are guided through the process of creating a game from scratch using Canvas, HTML5 Audio, WebGL and WebSockets. Inside, Jacob Seidelin shows you how features available in HTML5 can be used to create games. First, you will build a framework on which you will create your HTML5 game. Then each chapter covers a new aspect of the game including user input, sound, multiplayer functionality, 2D and 3D graphics and more. By the end of the book, you will have created a fully functional game that can be played in any compatible browser, or on any mobile device that supports HTML5. Topics include: Dealing with backwards compatibility Generating level data Making iOS and Android web apps Taking your game offline Using Web Workers Persistent Game Data Drawing with Canvas Capturing player input Creating 3D graphics with WebGL Textures and lighting Sound with HTML5 Audio And more...
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Övrig information

Jacob Seidelin (Copenhagen) is a freelance web developer with 10 years of experience working with both backend programming, graphics design and front-end technology. When not working with clients of all sizes he enjoys JavaScript and HTML5, web game development and generally pushing the limit of what is possible in the browser. The results of his adventures in web development can be witnessed at his website at


Introduction 1 Who this book is for 2 What this book is about 2 Part I Getting Started with HTML5 Games 5 CHAPTER 1 Gaming on the Web 7 Tracing the History of HTML5 8 Using HTML5 for Games 8 Canvas 9 Audio 11 WebSockets 12 Web Storage 13 WebGL 14 HTML5 and Flash 14 Creating Backward Compatibility 15 Using feature detection 15 Filling the gaps with polyfills 16 Building a Game 16 Summary 17 CHAPTER 2 Taking the First Steps 19 Understanding the Game 20 Swapping jewels 20 Matching three 20 Level progression 20 Identifying Game Stages 21 Splash screen 21 Main menu 22 Playing the game 22 High score 23 Creating the Application Skeleton 24 Setting up the HTML 25 Adding a bit of style 26 Loading the scripts 27 Creating a DOM helper module 31 Creating the Splash Screen 35 Working with web fonts 36 Styling the splash screen 37 Summary 40 CHAPTER 3 Going Mobile 41 Developing Mobile Web Applications 42 Write once, read many 42 Th e challenges of mobile platforms 43 Handling User Input on Mobile Devices 43 Keyboard input 43 Mouse versus touch 44 Adapting to Small Screen Resolutions 45 Creating scalable layouts 46 Controlling the viewport 48 Disabling user scaling 49 Creating Different Views 50 Creating the main menu 50 Adding screen modules 52 Using CSS media queries 56 Detecting device orientation 58 Adding a landscape style sheet 59 Developing for iOS and Android Devices 62 Placing web applications on the home screen 62 Getting the browser out of the way 71 Debugging Mobile Web Applications 73 Enabling the Safari debugger 74 Debugging on Android 76 Building Native Web Applications 77 PhoneGap 77 Future Mobile Platforms 81 Summary 81 Part II Creating the Basic Game 83 CHAPTER 4 Building the Game 85 Creating the Game Board Module 85 Initializing the game state 87 Filling the initial board 90 Implementing the Rules 93 Validating swaps 93 Detecting chains 95 Refilling the grid 100 Swapping jewels 104 Summary 105 CHAPTER 5 Delegating Tasks to Web Workers 107 Working with Web Workers 107 Limitations in workers 108 What workers can do 109 Using Workers 110 Sending messages 111 Receiving messages 111 Catching errors 112 Shared workers 112 A prime example 114 Using Web Workers in Games 117 Creating the worker module 117 Keeping the same interface 120 Summary 125 CHAPTER 6 Creating Graphics with Canvas 127 Ways to Display Graphics on the Web 128 Bitmap images 128 SVG graphics 128 The canvas element 129 When to choose canvas 129 Drawing with canvas 130 Drawing shapes and paths 131 Using advanced strokes and fill styles 142 Using transformations 147 Adding text, images, and shadows 151 Managing the state stack 156 Drawing the HTML5 logo 157 Compositing 164 Accessing Image Data 167 Retrieving pixel values 167 Updating pixel values 168 Exporting image fi le data 170 Understanding security restrictions 171 Creating pixel-based eff ects 171 Summary 174 CHAPTER 7 Creating the Game Display 175 Tracking Load Progress 176 Adding a progress bar 177 Building the Game Screen 180 Drawing the board with canvas 181 Exiting the game 188 Pausing the game 191 Summary 194 CHAPTER 8 Interacting with the Game 195 Capturing User Input 196 Mouse events on touch devices 196 The virtual keyboard 196 Touch events 198 Input events and canvas 204 Using gamepads and controllers 206 Building the Input Module 211 Handling input events 214 Implementing game actions 220 Binding inputs to game functions 226 Summary 233 CHAPTER 9 Animating Game Graphics 235 Making the