Catacomb WebGL is a project that I worked on at the Recurse Center in 2017. Catacomb 3-D is a first-person shooter from the early 1990s that I used to play as a kid. I thought it would be fun to attempt to recreate it using WebGL.
The project is unfinished and unlikely to be completed. Shortly after my stint at the Recurse Center, I bought the rights to the original game series and have been working on modernizing the original code base.
Source code is open sourced under the GPLv2 license. Data assets like art and sound are not open sourced (yet).
You must have Node.js installed.
After cloning the repository, run npm install.
npm start will run a local web server that serves built assets at http://localhost:8080.
npm run dev will run a process that monitors the source code for changes and rebuilds the assets that get served.
The code builds on top of three.js, which is a JavaScript library that adds nicer abstractions over the low-level WebGL API. The project has many nice examples, and is probably one of the best starting points for dabbling in 3D graphics.
The original game's source code is open, but I didn't refer to it much during this project, except for learning how to extract the game's art and map assets to convert them to easier formats (e.g. PNG and JSON). http://www.shikadi.net/moddingwiki/Catacomb_3-D was also an invaluable resource.