Features showcased
Diffusing fields
Patch fields that spread, evaporate, and can be painted.
diffuse moves a quantity between neighbouring patches or along links; brush: lets you paint it by hand.
Models 6
6 models in this collection.
Biology & ecologyAnts
How much do the chemical trails speed up the colony's foraging?Ants leave a central nest one per tick to search for three food piles. Ants carrying food home lay a chemical that searching ants follow, and the nearest pile is empty after about 200 ticks.
Biology & ecologySlime
What decides whether the molds gather into a few big clusters or stay in a scattered web?Molds wander, drop chemical, and turn toward the richest of the three patches ahead. The chemical spreads and evaporates, and the molds gather into dense clusters joined by fainter streams.
Physics & patternsTuring Diffusion
How much faster must U diffuse than V before the seed spreads instead of freezing?Gray–Scott reaction–diffusion: two fields, U and V, react and spread from a seeded square. By default narrow stripes grow out and cover the board; with slower diffusion the seed freezes into a ring.
Cellular automataMaze
How do runners with no map and no memory still find the exit?A scent spreads from the exit through open corridors, weakening by a fixed factor per cell, and runners step toward the strongest neighboring scent. In the Labyrinth they reach the exit around tick 220.
NetworksDiffusion on a Directed Network
Where does all the value end up when every link is one-way?Node 0 starts with 100 units, and each tick every node passes diffusion-rate percent of its value along its outgoing links. The links form a tree pointing away from node 0, so it all ends in the leaves.
Social dynamicsYour X Attention Slime
Can your posting rhythm keep a trail alive, or does attention evaporate before anyone follows?Slime-mold style trails on a torus: you drop attention on your patch when you post, it diffuses and evaporates, and 80 foragers follow the gradient and top up trails that are already strong.