Book Image

Hands-On Game Development with WebAssembly

By : Rick Battagline
Book Image

Hands-On Game Development with WebAssembly

By: Rick Battagline

Overview of this book

Within the next few years, WebAssembly will change the web as we know it. It promises a world where you can write an application for the web in any language, and compile it for native platforms as well as the web. This book is designed to introduce web developers and game developers to the world of WebAssembly by walking through the development of a retro arcade game. You will learn how to build a WebAssembly application using C++, Emscripten, JavaScript, WebGL, SDL, and HTML5. This book covers a lot of ground in both game development and web application development. When creating a game or application that targets WebAssembly, developers need to learn a plethora of skills and tools. This book is a sample platter of those tools and skills. It covers topics including Emscripten, C/C++, WebGL, OpenGL, JavaScript, HTML5, and CSS. The reader will also learn basic techniques for game development, including 2D sprite animation, particle systems, 2D camera design, sound effects, 2D game physics, user interface design, shaders, debugging, and optimization. By the end of the book, you will be able to create simple web games and web applications targeting WebAssembly.
Table of Contents (18 chapters)

AI and Steering Behaviors

The game we have been writing is loosely based on the computer game Spacewar! If you are not familiar with Spacewar!, it was the first computer game ever written. It originally ran on a PDP-1 owned by MIT and was written by an MIT student named Steve Russel, in 1962. Back then, just getting a computer to display graphical output was difficult enough. Spacewar!, as well as many other early game systems such as Pong, were designed to be played by more than one person. That was because programming a computer to behave like a human was a very difficult thing. That is still somewhat true today, although more processing power and data allows modern Artificial Intelligence (AI) algorithms to behave much more intelligently than they have in the past.

Because our game is a single-player web game, we do not have the benefit of using a second human intelligence...