Slow sim to 1× on landing and resume last selected speed (ISS-057, v0.30.0)

lib/game/actions.test.ts

@@ -170,16 +170,32 @@ describe('flyPlane', () => {
     expect(plane.fuel).toBe(PLANE_TYPES.atr72.maxFuel);
   });
 
-  it('clears paused on dispatch (ISS-041) — speed is left untouched', async () => {
-    const inst = await freshDb('fly-unpause.db');
-    // The last landing pauses the sim at whatever scale was in use.
-    await inst.db.update(schema.simState).set({ paused: true, timeScale: 250 });
+  it('resumes a manual pause and restores lastSelectedTimeScale when the last grounded plane takes off (ISS-057)', async () => {
+    const inst = await freshDb('fly-resume.db');
+    // A landing slowed the sim to 1×; the player's last manually selected speed was 250.
+    await inst.db.update(schema.simState).set({ paused: true, timeScale: 1, lastSelectedTimeScale: 250 });
+
+    await flyPlane(inst, 'plane-starter', 'LEMD'); // sole grounded plane → airborne
+
+    const sim = (await inst.db.select().from(schema.simState))[0];
+    expect(sim.paused).toBe(false); // dispatch still resumes a manual pause…
+    expect(sim.timeScale).toBe(250); // …and restores the last selected speed
+  });
+
+  it('keeps 1× when another plane is still grounded after dispatch (ISS-057)', async () => {
+    const inst = await freshDb('fly-stayslow.db');
+    await inst.db.update(schema.simState).set({ timeScale: 1, lastSelectedTimeScale: 250 });
+    // A second grounded plane — the starter taking off leaves it on the ground.
+    await inst.db.insert(schema.planes).values({
+      id: 'plane-extra', model: 'atr72', status: 'available', fuel: 100, maxFuel: PLANE_TYPES.atr72.maxFuel,
+      locationIcao: HUB_ICAO, destIcao: null, lat: 50, lon: 8, departureSimTime: null,
+    });
 
     await flyPlane(inst, 'plane-starter', 'LEMD');
 
     const sim = (await inst.db.select().from(schema.simState))[0];
-    expect(sim.paused).toBe(false); // dispatch auto-resumes…
-    expect(sim.timeScale).toBe(250); // …with the stored speed preserved
+    expect(sim.paused).toBe(false);
+    expect(sim.timeScale).toBe(1); // another plane on ground → stays slowed
   });
 
   it('rejects a flying plane with 409', async () => {

lib/game/actions.ts

@@ -125,9 +125,14 @@ export async function flyPlane(inst: GameDb, planeId: string, destIcao: string):
       lon: origin.lon,
     })
     .where(eq(schema.planes.id, planeId));
-  // ISS-041: starting a flight resumes a paused sim (the last landing pauses it). Runs inside
-  // runAction(), so tick + unpause + dispatch are atomic under the sim lock.
-  await inst.db.update(schema.simState).set({ paused: false });
+  // ISS-057: dispatch still resumes a MANUALLY paused sim (pause is manual-only now — landings
+  // slow to 1× instead of pausing), and restores the last manually selected speed when this
+  // dispatch took the LAST grounded plane airborne. Runs inside runAction(), so tick + controls
+  // + dispatch are atomic under the sim lock.
+  const sets: Partial<Pick<schema.SimStateRow, 'paused' | 'timeScale'>> = { paused: false };
+  const remaining = await inst.db.select().from(schema.planes).where(eq(schema.planes.status, 'available'));
+  if (remaining.length === 0) sets.timeScale = sim.lastSelectedTimeScale;
+  await inst.db.update(schema.simState).set(sets);
   await persist(inst);
 }
 

lib/game/seed.test.ts

@@ -105,8 +105,9 @@ describe('buildSeed', () => {
   it('seeds the starting account and sim state', () => {
     const seed = seedWith(42);
     expect(seed.account).toEqual({ cash: STARTING_CASH, reputation: STARTING_REPUTATION });
-    // lastRealTickMs starts at the seed moment so the first tick-on-read advances ~0.
-    expect(seed.simState).toEqual({ clockMs: NOW, timeScale: 1, paused: false, lastRealTickMs: NOW });
+    // lastRealTickMs starts at the seed moment so the first tick-on-read advances ~0;
+    // lastSelectedTimeScale mirrors the seeded speed (v0.30.0, ISS-057).
+    expect(seed.simState).toEqual({ clockMs: NOW, timeScale: 1, paused: false, lastRealTickMs: NOW, lastSelectedTimeScale: 1 });
   });
 
   it('is fully deterministic for a fixed RNG and inputs', () => {

lib/game/seed.ts

@@ -62,7 +62,7 @@ export interface SeedData {
   plane: SeedPlane;
   packages: SeedPackage[];
   account: { cash: number; reputation: number };
-  simState: { clockMs: number; timeScale: number; paused: false; lastRealTickMs: number };
+  simState: { clockMs: number; timeScale: number; paused: false; lastRealTickMs: number; lastSelectedTimeScale: number };
 }
 
 // --- Tunables (documented so future revenue/cost work can build on them) ---
@@ -225,6 +225,8 @@ export function buildSeed(input: {
     account: { cash: STARTING_CASH, reputation: STARTING_REPUTATION },
     // lastRealTickMs starts at the seed moment so the first tick-on-read advances
     // by ~0 instead of treating "time since install" as elapsed play time.
-    simState: { clockMs: nowMs, timeScale: 1, paused: false, lastRealTickMs: nowMs },
+    // lastSelectedTimeScale (v0.30.0, ISS-057) mirrors the seeded speed — nothing has been
+    // selected manually yet, so resume would restore 1× anyway.
+    simState: { clockMs: nowMs, timeScale: 1, paused: false, lastRealTickMs: nowMs, lastSelectedTimeScale: 1 },
   };
 }