Hello, relatively new to game/3D design. I'm building a game of survival: a constant flow of objects keeps falling around your ball while you attempt to stay on a platform. I've got two things I'm working on: 1. I'm trying to give the user some sort of control over the ball. Either with mouse or keyboard. 2. I'm currently looking for a solution for my game world boundaries. Currently, the objects just bounce and keep falling forever (which I imagine isn't very memory efficien