Build your next game on a bigger scale with Pro HTML5 Games. This book teaches you the essentials of advanced game programming in HTML5. You'll learn techniques that you can transfer to any area of HTML5 game development to make your own professional HTML5 games! Led by an expert game programmer, you'll build two complete games in HTML5: a strategy puzzle game based on the Box2d physics engine and in the style of Angry Birds and a real-time strategy (RTS) game complete with units, buildings, path-finding, artificial intelligence, and multiplayer support. In the process, you'll learn how to do the following: * Create realistic physics in your game by incorporating the Box2d physics engine * Design large worlds with lots of characters and let users interact with them * Use sprite sheets, panning, parallax scrolling, and sound effects to build a more polished game * Incorporate pathfinding and steering to help characters navigate through your world * Create challenging levels with intelligent enemies by using decision trees, state machines, and scripted events * Add multiplayer in your games using Node.js and the WebSocket API This book will help you take your HTML5/JavaScript programming experience to the next level. It gives you the knowledge and skills you need to develop more complex, bolder games and become an HTML5 games pro. What you'll learn * Creating realistic physics in your game by incorporating the Box2d physics engine * Designing large worlds with lots of characters and let users interact with them * Using sprite sheets, panning, parallax scrolling, and sound effects to build a more polished game * Incorporating pathfinding and steering to help characters navigate through your world * Creating challenging levels with intelligent enemies by using decision trees, state machines, and scripted events * Adding multiplayer in your games using Node.js and the WebSocket API Who this book is for Table of Contents * HTML5 and JavaScript Essentials * Creating a Basic Game World * Physics Engine Basics * Integrating the Physics Engine * Creating the RTS Game World * Adding Entities to Our World * Intelligent Unit Movement * Adding More Game Elements * CreaAdding Weapons and Combat * Wrapping Up the Single-Player Campaign * Multiplayer with WebSockets * Multiplayer Gameplay

Aditya Ravi Shankar是在1993年第一次接触计算机之后开始学习编程的。当时还没有互联网和在线教程，他在当地图书馆找到一本编程书籍，并通过艰苦地重写书中的代码，编写了他的第一个GW-BASIC游戏。

2001年，他从印度理工学院毕业之后，做了近10年的软件顾问，为投资银行和大型企业开发交易与分析系统。最后，他离开了这个行业，这样他可以专注于从事自己所热爱的游戏开发。

从此，作为一个自信的极客，他使用各种新的语言和技术来进行自己的项目和实验，包括HTML5。在这期间，他独立在HTML5平台上重建了著名的命令与征服RTS游戏，他也因此而著名。

除了编程，Aditya还喜欢桌球、萨尔萨舞，以及学习发挥潜意识。他在其个人站点（www.adityaravishankar.com）中有一些关于游戏编程、个人发展和桌球的文章。

当他不忙于写作，或者不用专注于自己的项目时，他也会做一些咨询工作，以帮助企业来使用新的软件产品。

译者简介

谢光磊，中科院某所硕士研究生在读。热爱生活，热爱Web前端开发，热爱WebGL技术。理想是成为一流的游戏设计师。个人站点:www.xieguanglei.com。

技术审核者简介

Shane Hudson是一位自由的Web站点开发者，专注于最前沿的Web技术和Web标准。他曾经参与过大量交互式Web站点的工作并辅助项目的开发，具有丰富的使用JavaScript的经验。他对人工智能和计算机视觉具有浓厚的兴趣，他的E-mail地址是shane@shanehud son.net。

Shane说：“Shankar撰写的这本书正是业界所需要的：关于如何有效并熟练地编写JavaScript（和Node.js）。这本书教你如何编写游戏，但它并不仅仅是一本关于游戏开发的书，还是一本教你如何编写高质量JavaScript代码的书。”

Josh Robinson是一位专注于前沿技术的编程专家和自由开发者。他对编程的热爱最初来自一台二手的Commodore 64计算机屏幕上的蓝色荧光，后来他选择现代Web开发作为自己的职业。2006年，他供职于一家网络电话供应商之时，发现了Ruby和Ruby on Rails的优雅之处，并开发了若干个gem，其中包括流行的countries gem。你可以通过JoshRobinson.com或者Twitter: @JoshRobinson联系到他。

Josh Robinson说：“有了这本书，你就能像一个Boss一样写代码了。”

Syd Lawrence经营并管理着We Make Awesome Sh，他是Twilio的开发者和传播者。他获得过很多赞誉。Geek.com曾经将他形容为现代的超级英雄，而The Next Web曾经说他是社交网络的领袖。