Right now its a simple .c file but to finish the project I need to make .h and .cpp files and would like to test run them on my mac but i dont know how, just how to compile them.

How to Execute a File in a MacBook Terminal. The operating system your MacBook runs, OS X, is built on top of UNIX, and Terminal provides you with access to the underlying UNIX system commands.

The guide will tell you to use "./run.sh" in Terminal to launch Minecraft. While that works, before entering the command you'll need to enter "cd Minecraft" into a Terminal window.