🛹 Skateboard Halfpipe — 2D Side-View Energy and Pumping Lab

2D companion of the Skateboard 3D Halfpipe simulator: a side-view model of a rider as a variable-length pendulum on a circular pipe, with rolling friction, leg pumping, airs over the lip and live speed and energy graphs.

2D · HTML5 Canvas 2D · 60 FPS target · runs fully client-side, no install