Bounce and Spawn

No collision yet. With equal speeds, two balls in a circle can stay in lock-step and never meet. Try New run or more speed spread.

Run

0.0 s

simulated time

balls

collisions

area filled

100%

energy kept

seed

Balls over time (log scale).

Settings

Map Ball radius Ball speed Speed spread Elasticity Spawn zone Sim speed

Volume

Changing the map restarts with the same seed; New run also draws a new cave. Radius, speed, speed spread, elasticity and spawn zone apply on restart. Speed spread gives each new ball a random speed of average ± that share. Every map has the same area, so runs compare fairly. Spawn zone is how far from the centre new balls appear; it widens if the centre is crowded. Sound starts after your first click or key press.

Saved runs

Map	Seed	Radius	Elastic	Full at	Balls

Every finished run is saved in this browser with its full growth curve. Export makes a file you can keep or load elsewhere.