Diffusion-Limited Aggregation (2D)

This 2D canvas simulator reimplements diffusion-limited aggregation (DLA) from scratch: hundreds of particles random-walk around a seed at the center of the stage, and each one freezes in place the moment it wanders close enough to an already-frozen neighbor, slowly building a branching fractal cluster. Tune the stickiness probability to trade a dense, compact clump for a sparse, deeply branched dendrite, adjust the walker count and growth speed, and watch the live cluster-size, radius and fractal-dimension readouts track the structure as it grows — the same rule nature uses to grow snowflakes, mineral dendrites and lightning discharges.