Physics Simulation

This is just a small physics simulation that I randomly decided to make one day and for some reason I added squares to it as well. I remember that there's a weird bug with the circles and squares floating up into the ceiling before becoming normal and I never figured that out, but it's funny I guess. I also remember that there's a cool frame stepper if you press tab, you can only go forwards though with the right arrow key, but it's still cool nonetheless. Nothing much else to talk about though.