Landscape Resistance Corridor Simulator (2D)

This 2D counterpart replaces the 3D version's PDE relaxation and Dijkstra search with a genuinely different computational mechanic that targets the same landscape-connectivity question: a swarm of biased random walkers is released between two habitat patches on a procedurally generated resistance surface, stepping toward each neighboring cell with probability proportional to how conductive (low-resistance) that step is. The corridor, the flow map and the effective-resistance readout all emerge live from the swarm's own statistics rather than from solving an equation directly -- the same random-walk / electrical-network duality (Doyle & Snell) that underlies tools like Circuitscape, just approached from the stochastic side instead of the deterministic side.