fix: match scenario 2601 monthly seed progression

2026-08-03 18:56:23 +00:00
parent 2f17584075
commit 58b9a230a7
92 changed files with 3696 additions and 587 deletions
@@ -249,6 +249,12 @@ export const createUpdateNationLevelHandler = (options: {
        const hiddenSeed = resolveHiddenSeed(world);

        for (const nation of world.listNations().sort((left, right) => left.id - right.id)) {
+            // Legacy persists only founded nations in `nation`; Core also keeps
+            // an id=0 sentinel so neutral cities can retain a Nation reference.
+            // The sentinel must never participate in title promotion.
+            if (nation.id <= 0) {
+                continue;
+            }
            const cityCount = cityCounts.get(nation.id) ?? 0;
            let newLevel = 0;
            for (let level = 0; level < NATION_LEVEL_CITY_COUNTS.length; level += 1) {