How can I implement collision detection in my C++ physics engine?

How can I implement collision detection in my C++ physics engine?

To implement collision detection, you can use bounding boxes or spheres to simplify the shapes of your objects.

What algorithms are best for 2D collision detection?

For 2D collision detection, the Separating Axis Theorem (SAT) and the AABB (Axis-Aligned Bounding Box) method are popular.

Can you explain how the SAT works?

Sure! The SAT checks if two convex shapes overlap by projecting them onto potential separating axes and checking for gaps.

How do I optimize collision detection for many objects?

You can use spatial partitioning techniques like quad-trees or grid-based systems to reduce the number of collision checks.