Book Image

Game Development with Rust and WebAssembly

By : Eric Smith
Book Image

Game Development with Rust and WebAssembly

By: Eric Smith

Overview of this book

The Rust programming language has held the most-loved technology ranking on Stack Overflow for 6 years running, while JavaScript has been the most-used programming language for 9 years straight as it runs on every web browser. Now, thanks to WebAssembly (or Wasm), you can use the language you love on the platform that's everywhere. This book is an easy-to-follow reference to help you develop your own games, teaching you all about game development and how to create an endless runner from scratch. You'll begin by drawing simple graphics in the browser window, and then learn how to move the main character across the screen. You'll also create a game loop, a renderer, and more, all written entirely in Rust. After getting simple shapes onto the screen, you'll scale the challenge by adding sprites, sounds, and user input. As you advance, you'll discover how to implement a procedurally generated world. Finally, you'll learn how to keep your Rust code clean and organized so you can continue to implement new features and deploy your app on the web. By the end of this Rust programming book, you'll build a 2D game in Rust, deploy it to the web, and be confident enough to start building your own games.
Table of Contents (16 chapters)
1
Part 1: Getting Started with Rust, WebAssembly, and Game Development
4
Part 2: Writing Your Endless Runner
11
Part 3: Testing and Advanced Tricks

Adding the Web Audio API to the engine

In this section, we'll be using the browser's Web Audio API to add sound to our game. The API is incredibly full-featured, allowing for mixing audio sources and special effects, but we're just going to use it to play background music and sounds. In fact, the Web Audio API is its own book and, if you're interested, you can find one at https://webaudioapi.com/book/. While it would be fun to add things such as spatialized audio to our game, we're going to focus on just adding some music and sound effects. I encourage you to experiment on your own when making your own, more complicated games.

Once we've got an overview of the Web Audio API, we'll create a module to play sounds in Rust, load the sounds in the same way as we load our images, and finally, add that sound to the engine.

The Web Audio API is a relatively new technology that is meant to replace older technology for audio, such as QuickTime and Flash...