How do I implement constraints in a C++ physics engine?

How do I implement constraints in a C++ physics engine?

To implement constraints, you can use methods like position-based constraints or velocity-based constraints. Which one are you interested in?

I'm interested in position-based constraints. Can you explain how that works?

Sure! Position-based constraints adjust the positions of objects to satisfy constraints after each simulation step. You typically define a constraint equation and then solve it to update the positions.

What kind of constraints can I implement?

You can implement various constraints like distance constraints, angle constraints, and more. Each serves different purposes in simulating realistic interactions.

Can you give me an example of a distance constraint?

Absolutely! A distance constraint ensures that two points remain a fixed distance apart. You calculate the distance and adjust the positions accordingly to maintain that distance.