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Food, steel, luxury and high-tech now share one flat month-long reserve. A region keeps bidding for the shortfall while its store is thin, so a war that empties a pantry refills it from the grid instead of starving; the harvest is served before the city load, unmet food bids the price up, the army's rations count as demand, and a converter that cannot cover its power bill idles instead of making a loss. The delivery graph walks sea lanes any distance, so its walks are cached across days behind a road/railway/work/territory stamp and only dropped by a wartime unit move. Units are indexed per tile, market access and node populations are memoised for the day, and the server can settle a fresh world before serving (--warmup, 150 days by default). Roadmap records the remaining follow-ups -- the politics/migration hot path and the luxury/high-tech price plateau -- and that freight's heavy energy draw is intended.
67 lines
3.2 KiB
JavaScript
67 lines
3.2 KiB
JavaScript
import { TestCase } from "./framework/test_case.js";
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import { smallState, cityOf, grantBuilding } from "./framework/helpers.js";
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import { RESOURCE_IDS, RESOURCE_RULES } from "../shared/data.js";
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import { key } from "../shared/hex.js";
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import { steelNeedPerDay, luxuryNeedPerDay, stockpileTarget } from "../shared/resources.js";
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// Puts a reachable producer for `resource` on an adjacent owned land tile, with
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// a bottomless stock, so a city can always top its reserve up. `index` picks a
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// different neighbour for each producer.
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function placeProducer(state, city, improvementId, resource, amount, index = 0) {
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const owned = state.topology.neighbours(city.coords.x, city.coords.y)
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.filter((n) => state._isLand(n) && state.civAt(n) === city.civ && !state.cityAt(n));
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const neighbour = owned[index];
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const k = key(neighbour.x, neighbour.y);
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if (!state.roads.has(k) && !state.railways.has(k)) state.roads.add(k);
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state.tileImprovements.set(k, improvementId);
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state.tileImprovementOwner.set(k, city.civ);
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state.tileImprovementHp.set(k, 1000);
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state._ensureResourceStock(k)[resource] = amount;
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return k;
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}
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function marketOf(state) {
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return new Map(RESOURCE_IDS.map((id) => [
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id, { supply: 0, demand: 0, price: state.getResourcePrice(id) },
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]));
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}
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export class StockpileTest extends TestCase {
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test_a_month_of_every_material_is_one_flat_horizon() {
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this.assertApprox(stockpileTarget(100), 100 * RESOURCE_RULES.stockpileDays);
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this.assertApprox(stockpileTarget(0), 0);
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}
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test_regions_stockpile_a_month_of_steel_and_luxury() {
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const state = smallState(["france"], 12345, { citiesPerCiv: 1 });
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const city = cityOf(state, 0);
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const population = state.getCityEconomy(city).population;
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const store = state.getCityResourceStock(city);
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// Below the target but enough to cover today: one day should top it up.
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store.steel = steelNeedPerDay(population) * 5;
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store.luxury = luxuryNeedPerDay(population) * 5;
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placeProducer(state, city, "steel_mill", "steel", 1e9, 0);
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placeProducer(state, city, "gold_mine", "luxury", 1e9, 1);
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state._consumeCityResources(new Map(), marketOf(state));
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this.assertApprox(store.steel, stockpileTarget(steelNeedPerDay(population)), 1e-3);
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this.assertApprox(store.luxury, stockpileTarget(luxuryNeedPerDay(population)), 1e-3);
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}
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test_a_region_reserves_a_month_of_high_tech_against_its_share_of_the_burn() {
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const state = smallState(["france"], 12345, { citiesPerCiv: 1 });
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const city = cityOf(state, 0);
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grantBuilding(state, city, "research_lab");
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placeProducer(state, city, "chip_foundry", "hightech", 1e9);
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const population = state.getCityEconomy(city).population;
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const burn = state.getCivUpkeepResources(0).hightech;
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this.assertGreater(burn, 0, "the lab and foundry wear high-tech");
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const need = (burn / state.getPlayerPopulation(0)) * population;
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const store = state.getCityResourceStock(city);
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store.hightech = 0;
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const market = marketOf(state);
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state._consumeCityResources(new Map(), market);
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this.assertApprox(store.hightech, stockpileTarget(need), 1e-3);
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this.assertApprox(market.get("hightech").demand, need, 1e-3, "the appetite is priced in");
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}
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}
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