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)
Part 1: Getting Started with Rust, WebAssembly, and Game Development
Part 2: Writing Your Endless Runner
Part 3: Testing and Advanced Tricks

Scrolling the background

To run RHB left to right with an infinite background, we have two choices, as follows:

  • Procedurally generate a background, based on a pattern or mathematical formula.
  • Use the Hanna-Barbera technique.

While the first option may appear more interesting or dynamic, the Hanna-Barbera technique is much simpler, and it's what we'll be using for Walk the Dog. What is the Hanna-Barbera technique? Well, for starters, it may not even go by that name, but that's what I'm calling it. Hanna-Barbera was an animation studio that ran a series of very popular cartoons from the '50s through to the '90s, including Tom and Jerry, The Flintstones, Scooby-Doo, Yogi Bear, and many more. If you were a child in any of those decades, you would wake up to "Saturday morning cartoons," which were dominated by Hanna-Barbera properties. While the studio was known for their beloved characters, they were also known for cutting costs...