Project in Raylib C.
Example of how to compile to both 2D and 3D graphics without affecting or having to change game logic.
Had to cheat a bit to make the camera centered. Had to set a macro to compile camera position differently whether compiling for 2D or 3D.
Compile with 2D graphics by running make build_2D in the base directory.
Compile with 3D graphics by running make build_4D in the base directory.
Should produce a binary file in bin named build_osx. Run binary with ./bin/build_osx.
Alternatively compile and build with a single command make build_and_run2D or make build_and_run3D.
Builds for OSX. If running on another platform you might have to configure the build differently.