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Fix port cell search algo

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GoteGuru 2022-04-06 23:06:47 +00:00
parent f30b7bb2bf
commit e2a6b16c6c
1 changed files with 4 additions and 3 deletions
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7
modules/submap.js
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@ -318,13 +318,13 @@ window.Submap = (function () {
* returns [cellid, neighbor] tuple or undefined if no such cell.
*/
const findNearest = (f, g, max=3) => centerId => {
const met = new Set([centerId]); // cache, f might be expensive
const met = new Set(); // cache, f might be expensive
const kernel = (c, dist) => {
const ncs = pack.cells.c[c].filter(nc => !met.has(nc));
const n = ncs.find(g);
if (f(c) && n) return [c, n];
if (dist >= max || !ncs.length) return undefined;
ncs.forEach(i => met.add(i));
met.add(c);
const targets = ncs.filter(f)
let answer;
while (targets.length && !answer) answer = kernel(targets.shift(), dist+1);
@ -360,6 +360,7 @@ window.Submap = (function () {
const res = searchCoastCell(cityCell)
if (!res) {
WARN && console.warn(`Burg ${b.name} sank like Atlantis. Unable to find coastal cells nearby. Try to reduce resample zoom level.`);
b.cell = null;
b.removed = true;
return;
}
@ -391,5 +392,5 @@ window.Submap = (function () {
}
// export
return { resample }
return { resample, findNearest }
})();