space-shooter.c VS Craft

You can do something like this, but way less polished and stick to one platform: https://github.com/tsherif/space-shooter.c/tree/master

Otherwise study real, mature, well-written C programs. There's a wealth of techniques and tricks that aren't really documented anywhere, but rather picked up from others. Recommendations off the top of my head: BSD utilities, musl, and SQLite. Or simply study the source for your favorite C software. Also, something good posted here recently: The Architecture of space-shooter.c.

I wrote space-shooter.c as a personal challenge to create a game from start to finish in C without using any 3rd-party libraries and wanted to share the source as a reference for anyone who's also interested in this type of game programming. The source code is heavily-commented, and I'm also writing a (still WIP) architecture guide that goes over the design decisions and details I learned about working with OS APIs in C: https://github.com/tsherif/space-shooter.c/blob/master/ARCHITECTURE.md

Here’s the original code: https://github.com/fogleman/Craft/blob/master/src/world.c I don’t really have an “after” because I edited it a lot and didn’t backup the original, but try it yourself and you should get similar results. I also told it to make the variable names better.

When this subject comes up, I always like to link to one of the many Minecraft clones written in C. https://github.com/fogleman/Craft

Not java but https://github.com/fogleman/Craft will give you an idea of what has to be done.