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)

Adding sound to our game

Now that we have an understanding of how to get SDL Audio to work on the web, we can start adding sound effects to our game. We will not be using a mixer in our game, so only one sound effect will play at a time. Because of this, we will need to classify some sounds as priority sound effects. If a priority sound effect is triggered, the sound queue will clear, and that sound effect will run. We also want to prevent our sound queue from becoming too long, so we will clear our sound queue if there are more than two items in it. Do not fear! I will repeat all of this when we get to that part of our code.

Updating game.hpp

The first thing we will need to change is our game.hpp file. We need to add a new...