Use left and right arrows to move left and right. Use space to jump, and hold down r to run. I hope someone finds this useful.
Just playing around with creating 2D platformer movement physics. Includes a tickrate set up that only updates movement every tick. global_tickrate is the number of ticks per second. Right now, input is only checked every tick, which isn't ideal, but it seems to work OK. It may be a bit buggy at lower values for the global_tickrate setting.