kamilkrzywda
179fad450d
CI / build + unit + e2e (pull_request) Successful in 8m2s
Packages carry a real weightKg (unit weight x count with +/-30% jitter), plane capacity becomes maxPayloadKg instead of 6 slots, load validation sums cargo weight against the payload, and the payout gains a per-kg part. Loadout display shows tonnage; OpenAPI swaps CatalogEntry.capacity for maxPayloadKg and adds PackageState.weightKg.
418 lines
23 KiB
TypeScript
418 lines
23 KiB
TypeScript
import type { Page, Request } from '@playwright/test';
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import { expect, test } from '@playwright/test';
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// v0.12.0 package model against the live origin (https://flight.dev.kkhost.pl):
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// the full core loop through the UI — hook creates a short package at EDDF → Load
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// via the right pane → click its destination in the on-board list (left pane since
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// v0.20.0, ISS-021) → fly at 1000× →
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// arrival delivers EXACTLY the reward + rep; abandon deducts exactly the formula
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// penalty while grounded; expired packages deliver/abandon with no reward and no
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// penalty. Mirrors lib/game/penalty.ts for exact-value assertions.
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const SCALE = 1000; // fastest sim speed (v0.14.0 ladder top) — keeps flights to seconds of real time
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const HUB = 'EDDF'; // Frankfurt Main — the seeded starter plane's home base (lib/game/seed.ts)
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const FAR = 'LEZL'; // Seville — a long leg: under the v0.16.0 weighted model a full tank covers the
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// round trip, but the return leaves too little for another outbound
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// Mirrors lib/sim/movement.ts (v0.16.0 weight-proportional burn) + lib/game/catalog.ts (atr72).
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const FUEL_DENSITY_KG_PER_L = 0.8; // Jet-A1 density — must match FUEL_DENSITY_KG_PER_L in movement.ts
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const FUEL_PRICE_PER_L = 0.8; // must match catalog.ts
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const REP_BASE = 1; // lib/sim/engine.ts
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const REP_PER_KM = 0.0005;
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// Fuel remaining after distanceKm from startFuel — closed form of dF/dx = −k(We + ρF),
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// k calibrated so a full tank burns exactly burnPerKm (mirrors fuelAtWeighted).
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function fuelAfter(startFuel: number, burnPerKm: number, emptyWeightKg: number, maxFuel: number, distanceKm: number): number {
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const k = burnPerKm / (emptyWeightKg + FUEL_DENSITY_KG_PER_L * maxFuel);
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const rho = FUEL_DENSITY_KG_PER_L;
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return Math.max(0, (startFuel + emptyWeightKg / rho) * Math.exp(-k * rho * distanceKm) - emptyWeightKg / rho);
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}
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// Mirrors lib/game/penalty.ts — the exact abandon penalty at a given game clock.
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function penaltyFor(reward: number, createdSimTime: number, deadlineSimTime: number, clockMs: number): number {
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const span = deadlineSimTime - createdSimTime;
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const frac = span > 0 ? Math.min(1, Math.max(0, (clockMs - createdSimTime) / span)) : 1;
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return Math.round(reward * (0.15 + 0.45 * frac) * 100) / 100;
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}
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interface StateBody {
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account: { cash: number; reputation: number };
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simState: { clockMs: number; timeScale: number; paused: boolean };
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planes: Array<{ id: string; status: string; fuel: number; maxFuel: number; locationIcao: string; destIcao: string | null }>;
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packages: Array<{
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id: string; originIcao: string; destIcao: string; reward: number; cargoType: string; cargoCount: number;
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deadlineSimTime: number; status: 'open' | 'loaded' | 'delivered' | 'expired' | 'abandoned'; planeId: string | null; createdSimTime: number;
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}>;
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catalog: Array<{ model: string; burnPerKm: number; emptyWeightKg: number; maxFuel: number }>; // v0.16.0 weighted burn inputs
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}
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async function getState(page: Page): Promise<StateBody> {
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const res = await page.request.get('/api/state');
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expect(res.ok()).toBeTruthy();
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return (await res.json()) as StateBody;
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}
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// The e2e instance runs with FLIGHT_TEST_HOOKS=1 (docker-compose.yml) — the hook is live.
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// weightKg (v0.27.0) forces the package weight instead of the RNG draw, so flows that load
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// several packages onto one plane stay under its payload deterministically.
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async function createPackage(
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page: Page,
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from?: string,
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to?: string,
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deadlineOffsetMs?: number,
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weightKg?: number,
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): Promise<StateBody['packages'][number]> {
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const res = await page.request.post('/api/test/create-package', { data: { originIcao: from, destIcao: to, deadlineOffsetMs, weightKg } });
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expect(res.status()).toBe(201);
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return (await res.json()) as StateBody['packages'][number];
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}
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async function postSim(page: Page, body: Record<string, unknown>): Promise<void> {
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const res = await page.request.post('/api/sim', { data: body });
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expect(res.ok()).toBeTruthy();
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}
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// Set the time scale and VERIFY from the response that it stuck — if something external ever
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// resets the live instance's controls mid-test, fail loudly here instead of timing out later.
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// ISS-041 also clears pause: a landing pauses the sim, so any fast-forward after one must
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// resume it or the clock stays frozen and the next wait hangs.
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async function setScale(page: Page, scale: number): Promise<void> {
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const res = await page.request.post('/api/sim', { data: { timeScale: scale, paused: false } });
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expect(res.status()).toBe(200);
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const body = (await res.json()) as { timeScale: number };
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expect(body.timeScale, `timeScale should be ${scale} after POST /api/sim`).toBe(scale);
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}
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// Closest airport to the hub from /api/airports → shortest possible flight. Returns both
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// endpoints' coordinates so exact-km assertions (rep/fuel) can mirror lib/geo.ts.
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async function nearestToHub(page: Page): Promise<{ icao: string; lat: number; lon: number; hubLat: number; hubLon: number }> {
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const res = await page.request.get('/api/airports');
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expect(res.ok()).toBeTruthy();
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const fc = (await res.json()) as { features: Array<{ properties: { icao: string; lat: number; lon: number } }> };
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const hub = fc.features.find((f) => f.properties.icao === HUB)!.properties;
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let nearest = fc.features.filter((f) => f.properties.icao !== HUB)[0].properties;
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for (const f of fc.features) {
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if (f.properties.icao === HUB) continue;
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const d = Math.hypot(f.properties.lat - hub.lat, f.properties.lon - hub.lon);
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const dn = Math.hypot(nearest.lat - hub.lat, nearest.lon - hub.lon);
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if (d < dn) nearest = f.properties;
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}
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return { icao: nearest.icao, lat: nearest.lat, lon: nearest.lon, hubLat: hub.lat, hubLon: hub.lon };
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}
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// Every spec that touches the time controls restores scale=1 / unpaused on exit so
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// a failure mid-test can't leave the live instance fast-forwarded for later specs.
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test.afterEach(async ({ page }) => {
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await postSim(page, { timeScale: 1, paused: false });
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});
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test.describe.configure({ mode: 'serial' }); // shared live DB — order matters within this file
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// Self-heal helper: let any in-flight leg finish, reposition plane-starter home via the API
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// (repositioning needs no package — v0.12.0 manual flight), and abandon any leftover cargo so
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// exact cash/rep assertions start from a clean baseline even after an interrupted previous run.
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async function flyHomeViaApi(page: Page): Promise<void> {
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let s = await getState(page);
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let plane = s.planes.find((p) => p.id === 'plane-starter')!;
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if (plane.status === 'flying' || plane.locationIcao !== HUB) {
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// Fast-forward any leftover leg / repositioning flight (~20 s real time worst case at 1000×).
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await setScale(page, SCALE);
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}
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if (plane.status === 'flying') {
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// Let the in-flight leg finish before repositioning. While flying, locationIcao stays at the
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// DEPARTURE airport, so the pre-landing snapshot can't tell us where the plane ends up — re-read
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// state after landing before deciding whether a repositioning flight is needed (run #41 retry: a
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// leftover EDDF→EDFH leg landed away from home but the helper still believed it was home and
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// skipped the fly-home).
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await expect.poll(async () => ((await getState(page)).planes.find((p) => p.id === 'plane-starter')!.status), { timeout: 240_000 }).toBe('available');
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s = await getState(page);
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plane = s.planes.find((p) => p.id === 'plane-starter')!;
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}
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if (plane.locationIcao !== HUB) {
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// ISS-041: the landing above paused the sim — setScale clears pause so the return leg
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// fast-forwards instead of taking real-time hours.
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await setScale(page, SCALE);
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const res = await page.request.post(`/api/planes/${plane.id}/fly`, { data: { destIcao: HUB } });
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expect(res.ok()).toBeTruthy(); // repositioning needs no package (v0.12.0 manual flight)
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await expect.poll(async () => ((await getState(page)).planes.find((p) => p.id === 'plane-starter')!.locationIcao), { timeout: 240_000 }).toBe(HUB);
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}
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// Abandon leftover loaded/expired packages (expired ones cost nothing; loaded ones take a
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// penalty — irrelevant, the baseline snapshot is captured AFTER this cleanup).
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const s1 = await getState(page);
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for (const pkg of s1.packages) {
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if (pkg.planeId === 'plane-starter' && (pkg.status === 'loaded' || pkg.status === 'expired')) {
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const res = await page.request.post(`/api/packages/${pkg.id}/abandon`);
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expect(res.ok()).toBeTruthy();
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}
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}
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}
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test('full core loop via UI: load → fly to destination → exact reward + rep on arrival', async ({ page }) => {
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test.setTimeout(300_000); // self-heal (worst case ~20 s at 1000×) + two short flights + refuel
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// Self-heal: the starter plane may be anywhere from a previous run/spec.
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await flyHomeViaApi(page);
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const before = await getState(page);
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expect(before.planes.find((p) => p.id === 'plane-starter')!.locationIcao).toBe(HUB);
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// Nearest airport to the hub → shortest possible flight (fastest e2e loop).
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const nearest = await nearestToHub(page);
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// A known short package at the hub with a generous deadline.
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const pkg = await createPackage(page, HUB, nearest.icao, 24 * 3_600_000);
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expect(pkg.originIcao).toBe(HUB);
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expect(pkg.destIcao).toBe(nearest.icao);
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// Precondition (server truth) before clicking Load: the starter must be grounded at the package's
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// origin — that is exactly what makes it load-eligible, and a stale pane snapshot can't prove it.
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await expect.poll(async () => {
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const b = await getState(page);
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const p = b.planes.find((x) => x.id === 'plane-starter')!;
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return p.status === 'available' && p.locationIcao === pkg.originIcao;
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}, { timeout: 30_000, message: 'waiting for plane-starter to be grounded at the package origin (self-heal incomplete?)' }).toBe(true);
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// LOAD via the UI: exactly one eligible plane (the starter at EDDF) → direct button.
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await page.goto('/');
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const loadBtn = page.getByTestId(`load-${pkg.id}`);
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await expect(loadBtn, 'Load button enabled for a package at the hub').toBeEnabled();
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await loadBtn.click();
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// The action endpoint's full snapshot is applied immediately (applySnapshot) — the
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// package shows as loaded on the starter in the on-board section.
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const onboardRow = page.getByTestId(`onboard-package-${pkg.id}`);
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await expect(onboardRow, 'loaded package appears in the on-board list').toBeVisible();
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// FLY via the UI: click the destination name button in the on-board list.
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const flyBtn = page.getByTestId(`fly-to-${pkg.id}`);
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await expect(flyBtn).toBeEnabled();
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await flyBtn.click();
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const planeId = 'plane-starter';
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// The click fires the fly POST asynchronously (runAction is fire-and-forget from the test's view),
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// so a getState issued immediately can race ahead of it and still see 'available' — poll until the
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// fly actually took effect on the server (the run #36/#41 flake).
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await expect.poll(async () => {
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const b = await getState(page);
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const p = b.planes.find((x) => x.id === planeId)!;
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return p.status === 'flying' && p.destIcao === nearest.icao;
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}, { timeout: 15_000, message: 'waiting for the fly click to take effect (status "flying" + dest set)' }).toBe(true);
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let s = await getState(page);
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// Fast-forward to arrival (a few seconds of real time at 1000×).
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await setScale(page, SCALE);
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await expect.poll(async () => ((await getState(page)).planes.find((p) => p.id === planeId)!.status), { timeout: 120_000 }).toBe('available');
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s = await getState(page);
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const landed = s.planes.find((p) => p.id === planeId)!;
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expect(landed.locationIcao).toBe(nearest.icao); // arrived at the package's destination
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expect(landed.destIcao).toBeNull(); // flight context cleared on landing
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// EXACT reward: cash increased by exactly the package's payout…
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const delivered = s.packages.find((p) => p.id === pkg.id)!;
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expect(delivered.status).toBe('delivered');
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expect(s.account.cash).toBeCloseTo(before.account.cash + pkg.reward, 6);
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// …and rep gained per the engine formula (great-circle km of the leg just flown),
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// mirroring lib/sim/engine.ts's double rounding (gain rounded to cents, then total).
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const exactKm = haversineKm(nearest.hubLat, nearest.hubLon, nearest.lat, nearest.lon);
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const repGain = Math.round((REP_BASE + REP_PER_KM * exactKm) * 100) / 100;
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expect(s.account.reputation).toBeCloseTo(Math.round((before.account.reputation + repGain) * 100) / 100, 9);
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// Fuel burned per the v0.16.0 weight-proportional model (closed form — no rounding drift).
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const entry = before.catalog.find((e) => e.model === 'atr72')!;
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expect(landed.fuel).toBeCloseTo(
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fuelAfter(before.planes.find((p) => p.id === planeId)!.fuel, entry.burnPerKm, entry.emptyWeightKg, entry.maxFuel, exactKm),
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6,
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);
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// Refuel via the API: cost = (maxFuel − fuel) × FUEL_PRICE_PER_L, deducted exactly.
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const refuelRes = await page.request.post(`/api/planes/${planeId}/refuel`);
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expect(refuelRes.ok()).toBeTruthy();
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s = await getState(page);
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const afterRefuel = s.planes.find((p) => p.id === planeId)!;
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expect(afterRefuel.fuel).toBe(afterRefuel.maxFuel); // back to full
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const refuelCost = Math.round((afterRefuel.maxFuel - landed.fuel) * FUEL_PRICE_PER_L * 100) / 100;
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expect(s.account.cash).toBeCloseTo(before.account.cash + pkg.reward - refuelCost, 6);
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// Restore: fly home (repositioning — no package needed in the v0.12.0 model). ISS-041: the
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// arrival above paused the sim, so re-set SCALE for the return leg (setScale clears pause).
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await setScale(page, SCALE);
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const homeRes = await page.request.post(`/api/planes/${planeId}/fly`, { data: { destIcao: HUB } });
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expect(homeRes.ok()).toBeTruthy();
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await expect.poll(async () => ((await getState(page)).planes.find((p) => p.id === planeId)!.locationIcao), { timeout: 120_000 }).toBe(HUB);
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});
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test('abandon while grounded deducts exactly the formula penalty', async ({ page }) => {
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test.setTimeout(120_000);
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await flyHomeViaApi(page);
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const before = await getState(page);
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// Two packages at the hub — load both, abandon one through the UI. Forced weights keep
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// the pair under the starter's payload (v0.27.0) so both loads are deterministic.
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const pkgA = await createPackage(page, HUB, 'LEMD', 24 * 3_600_000, 1_000);
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const pkgB = await createPackage(page, HUB, 'LEMD', 24 * 3_600_000, 1_000);
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for (const p of [pkgA, pkgB]) {
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const res = await page.request.post(`/api/packages/${p.id}/load`, { data: { planeId: 'plane-starter' } });
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expect(res.ok()).toBeTruthy();
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}
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// Abandon A via the UI — capture the endpoint's OWN response so the penalty is checked
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// against the exact game clock the server used (a later GET would tick the clock further).
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await page.goto('/');
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const abandonBtn = page.getByTestId(`abandon-${pkgA.id}`);
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await expect(abandonBtn).toBeEnabled();
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const [res] = await Promise.all([
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page.waitForResponse((r) => r.url().includes(`/api/packages/${pkgA.id}/abandon`), { timeout: 15_000 }),
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abandonBtn.click(),
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]);
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expect(res.status()).toBe(200);
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const s = (await res.json()) as StateBody; // full post-action snapshot at the penalty's clock
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const expectedPenalty = penaltyFor(pkgA.reward, pkgA.createdSimTime, pkgA.deadlineSimTime, s.simState.clockMs);
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expect(expectedPenalty).toBeGreaterThanOrEqual(Math.round(pkgA.reward * 0.15 * 100) / 100); // at/above the floor
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const abandoned = s.packages.find((p) => p.id === pkgA.id)!;
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expect(abandoned.status).toBe('abandoned');
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expect(abandoned.planeId).toBeNull(); // slot freed
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expect(s.account.cash).toBeCloseTo(before.account.cash - expectedPenalty, 6);
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// B is still on board — abandon it via the API to leave a clean state.
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const resB = await page.request.post(`/api/packages/${pkgB.id}/abandon`);
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expect(resB.ok()).toBeTruthy();
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});
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test('expired packages deliver and abandon with no reward and no penalty', async ({ page }) => {
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test.setTimeout(480_000); // two ~10 s real-time legs at 1000× (HUB↔LEMD) plus expiry wait
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await flyHomeViaApi(page);
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const before = await getState(page);
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// A: load, let it expire while loaded, then FLY to its destination — arrival must
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// unbind it WITHOUT paying out. B: load, let it expire, abandon for free. B's
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// destination differs from A's so it stays bound on the plane at LEMD arrival and can
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// still be abandoned (an expired package whose dest matches the arrival airport is
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// unbound by the tick instead).
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const pkgA = await createPackage(page, HUB, 'LEMD', 10_000, 1_000); // short game-time deadline; forced weights keep the pair under payload (v0.27.0)
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const pkgB = await createPackage(page, HUB, 'EHAM', 10_000, 1_000);
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for (const p of [pkgA, pkgB]) {
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const res = await page.request.post(`/api/packages/${p.id}/load`, { data: { planeId: 'plane-starter' } });
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expect(res.ok()).toBeTruthy();
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}
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// Fast-forward past both deadlines — the tick flips loaded → expired (slot kept).
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await setScale(page, SCALE);
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let s = await getState(page);
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await expect.poll(async () => ((await getState(page)).packages.find((p) => p.id === pkgA.id)!.status), { timeout: 30_000 }).toBe('expired');
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s = await getState(page);
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expect(s.packages.find((p) => p.id === pkgB.id)!.status).toBe('expired');
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// Fly to the destination — arrival unbinds A for free (no reward, no rep).
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const flyRes = await page.request.post('/api/planes/plane-starter/fly', { data: { destIcao: 'LEMD' } });
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expect(flyRes.ok()).toBeTruthy();
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await expect.poll(async () => ((await getState(page)).planes.find((p) => p.id === 'plane-starter')!.status), { timeout: 240_000 }).toBe('available');
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s = await getState(page);
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const landedA = s.packages.find((p) => p.id === pkgA.id)!;
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expect(landedA.status).toBe('expired'); // still expired — never delivered…
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expect(landedA.planeId).toBeNull(); // …but the slot was freed on arrival
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expect(s.account.cash).toBe(before.account.cash); // NO reward for expired cargo
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expect(s.account.reputation).toBe(before.account.reputation); // no rep either
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// B: abandon an expired package while grounded — penalty is exactly €0.
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const cashBeforeAbandon = s.account.cash;
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const resB = await page.request.post(`/api/packages/${pkgB.id}/abandon`);
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expect(resB.ok()).toBeTruthy();
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s = await getState(page);
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expect(s.packages.find((p) => p.id === pkgB.id)!.status).toBe('abandoned');
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expect(s.account.cash).toBe(cashBeforeAbandon); // free — expired abandons cost nothing
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// Restore: refuel + fly home. ISS-041: the LEMD arrival above paused the sim, so
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// re-set SCALE for the return leg (setScale clears pause; the expiry wait's scale is kept).
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await page.request.post('/api/planes/plane-starter/refuel');
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await setScale(page, SCALE);
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const homeRes = await page.request.post('/api/planes/plane-starter/fly', { data: { destIcao: HUB } });
|
||
expect(homeRes.ok()).toBeTruthy();
|
||
await expect.poll(async () => ((await getState(page)).planes.find((p) => p.id === 'plane-starter')!.locationIcao), { timeout: 240_000 }).toBe(HUB);
|
||
});
|
||
|
||
test('load and fly validation paths (404 / 409 / 400)', async ({ page }) => {
|
||
test.setTimeout(600_000); // the FAR round trip alone is ~30 s real time at 1000×
|
||
await flyHomeViaApi(page);
|
||
|
||
// Load a package whose origin the plane is not at → 409.
|
||
const pkg = await createPackage(page, 'LEMD', HUB, 24 * 3_600_000); // originates in Madrid, plane sits in Frankfurt
|
||
let res = await page.request.post(`/api/packages/${pkg.id}/load`, { data: { planeId: 'plane-starter' } });
|
||
expect(res.status()).toBe(409);
|
||
expect(((await res.json()) as { error: string }).error).toMatch(/at EDDF/);
|
||
|
||
// Load an unknown package → 404.
|
||
res = await page.request.post('/api/packages/no-such-package/load', { data: { planeId: 'plane-starter' } });
|
||
expect(res.status()).toBe(404);
|
||
|
||
// Fly to an ICAO not in the dataset → 400.
|
||
res = await page.request.post('/api/planes/plane-starter/fly', { data: { destIcao: 'ZZZZ' } });
|
||
expect(res.status()).toBe(400);
|
||
expect(((await res.json()) as { error: string }).error).toMatch(/unknown airport/);
|
||
|
||
// Fly while already flying → 409 (short hop leg on the nearest route, then let it finish).
|
||
const hopDest = await nearestToHub(page);
|
||
res = await page.request.post('/api/planes/plane-starter/fly', { data: { destIcao: hopDest.icao } });
|
||
expect(res.ok()).toBeTruthy();
|
||
const again = await page.request.post('/api/planes/plane-starter/fly', { data: { destIcao: HUB } });
|
||
expect(again.status()).toBe(409);
|
||
await setScale(page, SCALE);
|
||
await expect.poll(async () => ((await getState(page)).planes.find((p) => p.id === 'plane-starter')!.locationIcao), { timeout: 120_000 }).toBe(hopDest.icao);
|
||
|
||
// Abandon an open package → 409 (nothing loaded to abandon).
|
||
res = await page.request.post(`/api/packages/${pkg.id}/abandon`);
|
||
expect(res.status()).toBe(409);
|
||
|
||
// Fly home from the hop so the fuel section starts at the hub. ISS-041: the hop arrival above
|
||
// paused the sim, so re-set SCALE for this leg (setScale clears pause).
|
||
await setScale(page, SCALE);
|
||
res = await page.request.post('/api/planes/plane-starter/fly', { data: { destIcao: HUB } });
|
||
expect(res.ok()).toBeTruthy();
|
||
await expect.poll(async () => ((await getState(page)).planes.find((p) => p.id === 'plane-starter')!.locationIcao), { timeout: 120_000 }).toBe(HUB);
|
||
|
||
// Insufficient fuel (v0.16.0 weighted burn): a full tank covers the FAR round trip —
|
||
// the plane gets lighter as fuel burns off, so both legs fit — but landing back at the
|
||
// hub leaves too little for ANOTHER long leg: the second outbound must 409.
|
||
const s0 = await getState(page);
|
||
const starter = s0.planes.find((p) => p.id === 'plane-starter')!;
|
||
expect(starter.locationIcao).toBe(HUB); // landed back at the hub from the hop above
|
||
if (starter.fuel < starter.maxFuel) {
|
||
await page.request.post('/api/planes/plane-starter/refuel'); // ensure a full tank for the long legs
|
||
}
|
||
const farRes = await page.request.post('/api/planes/plane-starter/fly', { data: { destIcao: FAR } });
|
||
expect(farRes.ok()).toBeTruthy();
|
||
await setScale(page, SCALE);
|
||
await expect.poll(async () => ((await getState(page)).planes.find((p) => p.id === 'plane-starter')!.status), { timeout: 240_000 }).toBe('available');
|
||
|
||
const sFar = await getState(page);
|
||
const atFar = sFar.planes.find((p) => p.id === 'plane-starter')!;
|
||
expect(atFar.locationIcao).toBe(FAR);
|
||
// The return leg fits: the weighted burn over it is less than what's left in the tank.
|
||
// ISS-041: the FAR arrival above paused the sim, so re-set SCALE for this leg (setScale clears pause).
|
||
await setScale(page, SCALE);
|
||
const backRes = await page.request.post('/api/planes/plane-starter/fly', { data: { destIcao: HUB } });
|
||
expect(backRes.ok()).toBeTruthy();
|
||
await expect.poll(async () => ((await getState(page)).planes.find((p) => p.id === 'plane-starter')!.locationIcao), { timeout: 240_000 }).toBe(HUB);
|
||
|
||
// …but the tank is now too light for another FAR leg.
|
||
const againFar = await page.request.post('/api/planes/plane-starter/fly', { data: { destIcao: FAR } });
|
||
expect(againFar.status()).toBe(409);
|
||
expect(((await againFar.json()) as { error: string }).error).toMatch(/insufficient fuel/i);
|
||
|
||
// Restore: refuel (the plane is already home).
|
||
await page.request.post('/api/planes/plane-starter/refuel');
|
||
});
|
||
|
||
// Great-circle distance in km — mirrors lib/geo.ts (same formula, same R).
|
||
function haversineKm(lat1: number, lon1: number, lat2: number, lon2: number): number {
|
||
const toRad = (d: number) => (d * Math.PI) / 180;
|
||
const R = 6371;
|
||
const dLat = toRad(lat2 - lat1);
|
||
const dLon = toRad(lon2 - lon1);
|
||
const a = Math.sin(dLat / 2) ** 2 + Math.cos(toRad(lat1)) * Math.cos(toRad(lat2)) * Math.sin(dLon / 2) ** 2;
|
||
return 2 * R * Math.asin(Math.min(1, Math.sqrt(a)));
|
||
}
|