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PolskiRigid-Body Physics Sandbox (2D)
A Canvas 2D bouncing-ball sandbox: tune gravity, bounciness and ball count, then click the stage to spawn more balls and watch real impulse-based elastic collisions play out between every pair.
This 2D companion drives the same rigid-body mechanic as the 3D sandbox on a flat canvas: gravity pulls a set of variable-mass balls downward, each pair resolves its overlap and exchanges momentum through a real impulse-based elastic collision (scaled by an adjustable restitution coefficient), and walls bounce incoming balls back with the same coefficient — so tuning bounciness from near-dead to near-perfect elastic is immediately visible, and clicking the stage adds more balls to stress-test the collision pass.
Canvas 2D bouncing-ball sandbox with adjustable gravity, restitution and ball count, and real impulse-based elastic collisions between every pair of balls.
2D · HTML5 Canvas 2D · 60 FPS target · runs fully client-side, no install