How can I implement advanced techniques in a 2D physics engine using C++?

How can I implement advanced techniques in a 2D physics engine using C++?

You can start by exploring techniques like collision detection, rigid body dynamics, and particle systems. Do you have a specific technique in mind?

I'm particularly interested in collision detection. What are some effective methods?

For collision detection, you can use methods like Axis-Aligned Bounding Boxes (AABB), Separating Axis Theorem (SAT), or spatial partitioning techniques like quad-trees.

Can you explain how the Separating Axis Theorem works?

Sure! The Separating Axis Theorem states that two convex shapes do not collide if there exists a line (axis) on which their projections do not overlap. You check this for all edges of both shapes.

What about optimizing collision detection for many objects?

You can optimize by using spatial partitioning, broad-phase collision detection to quickly eliminate non-colliding pairs, and then applying narrow-phase checks for potential collisions.