@open-rgs/pay-cluster

A wild belongs to every cluster it touches.

Orthogonal flood fill

A win is a group of the same symbol connected up, down, left or right - never diagonally - paid by how many cells it holds.

A flood fill from each real occurrence, spreading through neighbours.

import { evalAllClusters, clustersOf } from "@open-rgs/pay-cluster";

const wins = evalAllClusters(grid, CLUSTER, { roles });

clustersOf(grid, "HIGH", roles);

Wilds are the whole difficulty

A wild sitting between two clusters is legitimately part of both. So the fill runs per symbol and consumes only real matches - consume the wild for the first and the second silently shrinks by one, with nothing on the board looking wrong.

The outlined wild is counted in the teal group and the amber one.

Never seeded from a wild

Growing a cluster around a symbol that is not actually present would invent wins out of a lone wild. A wild-only region pays nothing: with no real symbol to be, there is no paytable row to read.

Orthogonal only. Diagonals do not connect.

import { largestCluster } from "@open-rgs/pay-cluster";

largestCluster(grid, "HIGH", roles);

evalAllClusters(allWilds, CLUSTER, { roles });