space-shooter.c VS permafrost-engine

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

Yea, bit annoying to do that, especially in a large project some vectors need to be static some need to be exposed in the API. In my mind the best solution is to add another macro parameter that lets the user change the function scope on the fly. See the vector used in the permafrost engine (a fellow redditor); when I first saw how he wrote his template macros it was a game changing trick.

And the source code for the engine is here on GitHub. I've written like 75k SLOC of C for it. It's a pretty general-purpose RTS engine that could be used for a lot of things - full conversions, remakes of classics, other RTS/citybuilder/ARPG games, and more. It has a Python scripting API for the top-level gameplay logic.

BTW, the engine is fully open-source. So if you want to take a deep dive into the code, it's here: https://github.com/eduard-permyakov/permafrost-engine

I'm into my third year of writing my own RTS game engine in C. Complete with OpenGL rendering, group pathfinding of 1k+ entities, Python scripting, yada, yada, yada.