u/mrshr3d

Reading a book at the moment that gives a solid review of the maths required for collision detection and then covers putting that maths into practice - teaching a variety of collision detection methods. Great if you want to roll your own physics engine to suit the needs of your game without having to rely on 3rd party libraries that might be overkill or ill-suited for your requirements.

https://www.amazon.com/dp/B0G59K1RPR