Game logic

How the fuck do they code games so that everything moves smoothly and at a consistent rate regardless of the speed of the machine you run it on, and still have tons of shit interacting with each other somehow?
Maybe I need to find a good open-source candidate to have a look at.

Also, I wish I knew the correct terms to describe what I'm talking about.

>>22
These are 3d rendering engines. For physics, check out bullet(http://www.ohloh.net/p/bulletphysics), newton(http://newtondynamics.com/forum/newton.php), and google(http://www.google.com/search?q=physic%20engine)