feat(game-engine): port city changes and NPC troop leaders

2026-07-25 19:49:51 +00:00
parent 18a39ec612
commit 09e4a2233c
8 changed files with 1020 additions and 7 deletions
@@ -0,0 +1,79 @@
+import { describe, expect, it } from 'vitest';
+import type { City, CitySeed } from '@sammo-ts/logic';
+
+import { applyChangeCity, applyInitialChangeCityEvents } from '../src/turn/monthlyChangeCityAction.js';
+
+const buildCity = (id: number, nationId: number, name = `도시${id}`): City => ({
+    id,
+    name,
+    nationId,
+    level: 4,
+    state: 0,
+    population: 1_001,
+    populationMax: 2_000,
+    agriculture: 501,
+    agricultureMax: 1_000,
+    commerce: 499,
+    commerceMax: 1_000,
+    security: 99,
+    securityMax: 1_000,
+    supplyState: 1,
+    frontState: 0,
+    defence: 101,
+    defenceMax: 1_000,
+    wall: 50,
+    wallMax: 1_000,
+    meta: { trust: 40, trade: 100 },
+});
+
+describe('ChangeCity monthly action', () => {
+    it('applies legacy target selection, percentage rounding, clamping, and ordered max changes', () => {
+        const cities = [buildCity(1, 0, '낙양'), buildCity(2, 1, '장안')];
+
+        expect(applyChangeCity(cities, 'free', { pop: '50%', trust: '+70', trade: 999 })).toEqual([
+            expect.objectContaining({
+                id: 1,
+                population: 1_000,
+                meta: expect.objectContaining({ trust: 100, trade: 105 }),
+            }),
+        ]);
+        expect(applyChangeCity(cities, 'occupied', { agri: '*2', comm: '-600' })).toEqual([
+            expect.objectContaining({ id: 2, agriculture: 1_000, commerce: 0 }),
+        ]);
+        expect(
+            applyChangeCity(cities, ['cities', 1, '장안'], {
+                pop_max: '+100',
+                pop: '100%',
+            })
+        ).toEqual([
+            expect.objectContaining({ id: 2, populationMax: 2_100, population: 2_100 }),
+        ]);
+    });
+
+    it('applies unconditional scenario initial events without changing non-target cities', () => {
+        const cities = [
+            { ...buildCity(1, 0), trust: 40, trade: 100 },
+            { ...buildCity(2, 1), trust: 40, trade: 100 },
+        ] as CitySeed[];
+
+        const result = applyInitialChangeCityEvents(cities, [
+            [
+                true,
+                ['ChangeCity', 'free', { pop: '70%', trust: 80 }],
+                ['ChangeCity', 'occupied', { def: '70%', wall: '70%' }],
+            ],
+        ]);
+
+        expect(result[0]).toMatchObject({ population: 1_400, trust: 80, defence: 101, wall: 50 });
+        expect(result[1]).toMatchObject({ population: 1_001, trust: 40, defence: 700, wall: 700 });
+    });
+
+    it('rejects invalid fields and division by zero', () => {
+        expect(() => applyChangeCity([buildCity(1, 0)], 'all', { unknown: 1 })).toThrow(
+            'Unsupported ChangeCity key'
+        );
+        expect(() => applyChangeCity([buildCity(1, 0)], 'all', { pop: '/0' })).toThrow(
+            'divide by zero'
+        );
+    });
+});