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


You can look at the end of this chapter in two ways. The first might be to say, "All that for a button?", and you would have a point. After all, our UI is only one new game button, and while that's true, we actually covered quite a bit. We have integrated the DOM into our app via web-sys and have, in turn, adjusted our game to handle it. By utilizing the DOM, we were able to leverage the browser for behavior such as clicks and hovers, without having to detect where within the canvas the mouse was and creating clickable areas. You can now create far more complex UIs using tools such as CSS Grid and Flexbox, so if you are familiar with web development, which you've been doing for this entire book, so you are, you'll be able to make quality UIs for your games. If you're looking for some place to start, try adding a score to this game. You can increment the score in the update, and show it at the end menu, or at the right corner during the game, or...