Pro HTML5 Games

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For your convenience Apress has placed some of the front

matter material after the index. Please use the Bookmarks

and Contents at a Glance links to access them.

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v

Contents at a Glance

About the Author ���������������������������������������������������������������������������������������������������������������xiii

About the Technical Reviewers ������������������������������������������������������������������������������������������ xv

Introduction ���������������������������������������������������������������������������������������������������������������������� xvii

Chapter 7: Intelligent Unit Movement ■ ����������������������������������������������������������������������������165

Chapter 8: Adding More Game Elements ■ �����������������������������������������������������������������������195

Chapter 9: Adding Weapons and Combat ■ ����������������������������������������������������������������������231

Chapter 10: Wrapping Up the Single-Player Campaign ■ �������������������������������������������������263

Chapter 11: Multiplayer with WebSockets ■ ��������������������������������������������������������������������293

Chapter 12: Multiplayer Gameplay ■ ��������������������������������������������������������������������������������319

Index ���������������������������������������������������������������������������������������������������������������������������������341

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xvii

Introduction

Welcome to Pro HTML5 Games.

In writing this book, I wanted to create the resource that I wish someone had given me when I was starting out

how these elements come together to form professional-looking games.

By the end of this book, I hope you will walk away with the condence and the resources to start making amazing

games of your own in HTML5.

Who is Book Is For

Pro HTML5 Games is meant for programmers who already have some HTML and JavaScript programming experience

and who now want to learn to harness the power of HTML5 to build amazing-looking games but don’t know where to

begin.

Readers who have experience making games in other languages such as Flash and would like to move to HTML5

will also nd a lot of useful information in this book.

If you do not feel condent about your game programming skills, don’t worry. is book covers all the essentials

How is Book Is Structured

Pro HTML5 Games takes you through the process of building two complete games over the course of 12 chapters.

In the rst four chapters, you will build Froot Wars, a Box2D engine–based physics game similar to the very

popular Angry Birds.

Chapter 1 discusses the basic elements of HTML5 needed to build games, such as drawing and animating on the

canvas, playing audio, and using sprite sheets.

Chapter 2 covers building a basic game framework with splash screens, game menus, an asset loader, and a basic

level with parallax scrolling.

Chapter 3 is a detailed introduction to the Box2D physics engine and shows how Box2D can be used to model a

game world.

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Chapter 5 covers building a basic game framework with splash screens, game menus, an asset loader, and a basic

Chapter 6 adds dierent entities such as vehicles, aircraft, and buildings to the game.

Chapter 7 shows how to add intelligent unit movement to the game using a combination of pathnding and

Chapter 8 adds some more elements such as an economy and a trigger-based system that allows scripting events.

Chapter 9 covers implementing a weapons and combat system in the game.

Chapter 10 wraps up the single-player by showing how to create several challenging single-player levels using

Finally, in the last two chapters, you will look at building the multiplayer component of the RTS game.

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