From f995438c0e72e1d08203609d74854d07dbecd661 Mon Sep 17 00:00:00 2001 From: sanine Date: Sat, 11 Nov 2023 15:10:55 -0600 Subject: mutables can be activated by living neighbors --- src/simulation/lattice_rules.js | 14 +++++++++++++- 1 file changed, 13 insertions(+), 1 deletion(-) (limited to 'src/simulation/lattice_rules.js') diff --git a/src/simulation/lattice_rules.js b/src/simulation/lattice_rules.js index db027a3..80f3221 100644 --- a/src/simulation/lattice_rules.js +++ b/src/simulation/lattice_rules.js @@ -53,7 +53,19 @@ export const lattice_rules = { } }, - mutable: () => {}, + mutable: (lattice, x, y) => { + const num_active_neighbors = neighbors(lattice, x, y) + .map(([x, y, cell]) => cell.type) + .filter(type => type === 'active') + .length; + if (num_active_neighbors > 0) { + // become living cell + return { world_updates: [{ + x, y, from: 'empty', to: 'active', + flags: { emit: [0, 0, 0, 0, 0, 0, 0, 1] }, + }]}; + } + }, immutable: () => {}, flag: () => {}, -- cgit v1.2.1