diff options
author | sanine <sanine.not@pm.me> | 2023-11-11 15:10:55 -0600 |
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committer | sanine <sanine.not@pm.me> | 2023-11-11 15:10:55 -0600 |
commit | f995438c0e72e1d08203609d74854d07dbecd661 (patch) | |
tree | b3e6c4f73526c61d9d6e5c4519b86fe0deaeb36f /src/simulation/lattice_rules.js | |
parent | f7b0ed22b2fd0ddafc4a84dde1ad8e3208144844 (diff) |
mutables can be activated by living neighbors
Diffstat (limited to 'src/simulation/lattice_rules.js')
-rw-r--r-- | src/simulation/lattice_rules.js | 14 |
1 files changed, 13 insertions, 1 deletions
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: () => {}, |