Just wrote my first metaprogram. It reads a map of collider vertices from a texture and writes them to a data structure that can be read by my game. The meta-programming part was actually surprisingly easy thanks to Odin's fmt.tprintf, which can output a string of valid Odin code from a type.

Added a burst-fire rifle to my zombie shooter game written in C and OpenGL. No audio yet, will need to tackle that headache soon enough.