deploy Syncer to a2acloud Kubernetes

packages/shared/test/royale.test.mjs

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+import assert from "node:assert/strict";
+import test from "node:test";
+import {
+  ROYALE_BOT_COUNT,
+  ROYALE_BOT_ID_BASE,
+  ROYALE_CHUNK_SIZE,
+  ROYALE_MAP_SEED,
+  collidesWithRoyaleMap,
+  generateRoyaleChunk,
+  hasRoyaleLineOfSight,
+  royaleGame,
+} from "../dist/index.js";
+
+test("the public world seed deterministically generates a 2 km chunked island", () => {
+  const first = generateRoyaleChunk(-3, 4);
+  const second = generateRoyaleChunk(-3, 4);
+  const neighbor = generateRoyaleChunk(-2, 4);
+  assert.deepEqual(first, second);
+  assert.notDeepEqual(first, neighbor);
+  assert.equal(ROYAALE_MAP_SEED_FOR_TEST(), ROYALE_MAP_SEED);
+  assert.equal(ROYAALE_CHUNK_SIZE_FOR_TEST(), ROYALE_CHUNK_SIZE);
+  assert.ok(first.obstacles.every((obstacle) => obstacle.id.startsWith("-3:4:")));
+});
+
+test("Syncer Royale simulates a complete authority battle headlessly", () => {
+  const server = royaleGame.createServer();
+  const totals = { shots: 0, damage: 0, eliminations: 0, winners: 0 };
+  for (let tick = 0; tick < 6_000; tick += 1) {
+    for (const event of server.step().events) {
+      if (event.type === "shot") totals.shots += 1;
+      if (event.type === "damage") totals.damage += 1;
+      if (event.type === "elimination") totals.eliminations += 1;
+      if (event.type === "winner") totals.winners += 1;
+    }
+  }
+  assert.equal(server.currentState.players.length, ROYALE_BOT_COUNT);
+  assert.ok(totals.shots > 150, `expected firefights, saw ${totals.shots}`);
+  assert.ok(totals.damage > 50, `expected damage, saw ${totals.damage}`);
+  assert.ok(totals.eliminations > 15, `expected eliminations, saw ${totals.eliminations}`);
+  assert.ok(server.currentState.players.every((player) => Number.isFinite(player.x + player.z)));
+});
+
+test("Royale projections hide authority secrets and distant combatants", () => {
+  const server = royaleGame.createServer();
+  server.addPlayer(1);
+  const authority = server.currentState;
+  const viewer = authority.players.find((player) => player.id === 1);
+  const hidden = authority.players.find((player) => player.id === ROYALE_BOT_ID_BASE);
+  viewer.altitude = 0;
+  viewer.x = 0;
+  viewer.z = 0;
+  hidden.x = 430;
+  hidden.z = 0;
+  hidden.alive = true;
+
+  const snapshot = server.createSnapshot(1, 0).state;
+  assert.equal(snapshot.mapSeed, ROYALE_MAP_SEED);
+  assert.equal("secretSeed" in snapshot, false);
+  assert.ok(snapshot.players.some((player) => player.id === 1));
+  assert.ok(!snapshot.players.some((player) => player.id === hidden.id));
+  assert.ok(
+    snapshot.players
+      .filter((player) => player.id !== 1)
+      .every((player) => player.health === null && player.armor === null),
+  );
+
+  const [sound] = server.createPerceptions(1, [
+    { id: 99, type: "shot", sourceId: hidden.id, x: hidden.x, y: 1.55, z: hidden.z, yaw: 0, pitch: 0 },
+  ]);
+  assert.equal(sound.type, "gunfire");
+  assert.equal("sourceId" in sound, false);
+  assert.equal("x" in sound, false);
+
+  const [ownShot] = server.createPerceptions(1, [
+    {
+      id: 100,
+      type: "shot",
+      sourceId: viewer.id,
+      x: viewer.x,
+      y: 1.55,
+      z: viewer.z,
+      yaw: viewer.yaw,
+      pitch: viewer.pitch,
+    },
+  ]);
+  assert.equal(ownShot.type, "shot");
+  assert.equal(ownShot.sourceId, viewer.id);
+});
+
+test("Royale enforces a viewer bandwidth budget after ordinary visibility", () => {
+  const server = royaleGame.createServer();
+  server.addPlayer(1);
+  const authority = server.currentState;
+  const viewer = authority.players.find((player) => player.id === 1);
+  viewer.altitude = 0;
+  viewer.x = 0;
+  viewer.z = 0;
+  for (const bot of authority.players.filter((player) => player.bot)) {
+    bot.x = 800;
+    bot.z = 0;
+  }
+  for (let index = 0; index < 100; index += 1) {
+    const item = authority.loot[index];
+    item.active = true;
+    item.x = (index % 10) * 2 - 9;
+    item.z = Math.floor(index / 10) * 2 - 9;
+  }
+
+  const snapshot = server.createSnapshot(1, 0).state;
+  assert.ok(snapshot.stream.droppedCount > 0);
+  assert.ok(snapshot.stream.usedBytes <= snapshot.stream.budgetBytes);
+  assert.ok(snapshot.loot.length < 100);
+  assert.equal(snapshot.players.filter((player) => player.id === 1).length, 1);
+});
+
+test("Royale input and projected state round-trip through the generic protocol", () => {
+  const server = royaleGame.createServer();
+  server.addPlayer(7);
+  const client = royaleGame.createClient();
+  const welcome = server.createSnapshot(7, 10);
+  client.initialize(7, welcome);
+  const packet = client.createInput({
+    forward: 1,
+    strafe: 0.25,
+    yaw: 0.7,
+    pitch: -0.2,
+    fire: false,
+    sprint: true,
+    reload: false,
+  }, 1);
+  const decoded = royaleGame.protocol.decodeClient(
+    royaleGame.protocol.encodeClient({ kind: "input", packet }),
+  );
+  assert.equal(decoded.kind, "input");
+  assert.deepEqual(decoded.packet, packet);
+  assert.equal(server.submitInput(7, decoded.packet).accepted, true);
+  server.step();
+  assert.equal(server.currentState.players.find((player) => player.id === 7).pitch, -0.2);
+  client.step();
+  client.reconcile(server.createSnapshot(7, 20));
+  assert.ok(client.currentState.players.some((player) => player.id === 7));
+});
+
+test("Royale pitch drives the authoritative three-dimensional hit ray", () => {
+  const server = royaleGame.createServer();
+  server.addPlayer(7);
+  server.addPlayer(8);
+  const authority = server.currentState;
+  for (const bot of authority.players.filter((player) => player.bot)) bot.alive = false;
+  const shooter = authority.players.find((player) => player.id === 7);
+  const target = authority.players.find((player) => player.id === 8);
+  let origin = null;
+  for (let x = -100; x <= 100 && !origin; x += 10) {
+    for (let z = -100; z <= 60; z += 10) {
+      if (
+        !collidesWithRoyaleMap(x, z) &&
+        !collidesWithRoyaleMap(x, z + 40) &&
+        hasRoyaleLineOfSight(x, z, x, z + 40)
+      ) {
+        origin = { x, z };
+        break;
+      }
+    }
+  }
+  assert.ok(origin, "expected an unobstructed public-map firing lane");
+  Object.assign(shooter, { x: origin.x, z: origin.z, altitude: 0, yaw: 0 });
+  Object.assign(target, { x: origin.x, z: origin.z + 40, altitude: 20, health: 100, armor: 0 });
+  const pitch = Math.atan2(20, 40);
+  assert.equal(server.submitInput(7, {
+    sequence: 1,
+    targetTick: 1,
+    observedTick: 0,
+    input: {
+      forward: 0,
+      strafe: 0,
+      yaw: 0,
+      pitch,
+      fire: true,
+      sprint: false,
+      reload: false,
+    },
+  }).accepted, true);
+  const result = server.step();
+  assert.ok(result.events.some((event) => event.type === "damage" && event.targetId === 8));
+  assert.ok(target.health < 100);
+});
+
+test("Royale strafe-right matches the first-person camera's screen right", () => {
+  const server = royaleGame.createServer();
+  server.addPlayer(7);
+  const authority = server.currentState;
+  for (const bot of authority.players.filter((player) => player.bot)) bot.alive = false;
+  const player = authority.players.find((candidate) => candidate.id === 7);
+  Object.assign(player, { x: 0, z: 0, altitude: 20, yaw: 0 });
+  assert.equal(server.submitInput(7, {
+    sequence: 1,
+    targetTick: 1,
+    observedTick: 0,
+    input: {
+      forward: 0,
+      strafe: 1,
+      yaw: 0,
+      pitch: 0,
+      fire: false,
+      sprint: false,
+      reload: false,
+    },
+  }).accepted, true);
+  server.step();
+  assert.ok(player.velocityX < 0, "screen-right is world -X while facing world +Z");
+});
+
+function ROYAALE_MAP_SEED_FOR_TEST() {
+  return ROYALE_MAP_SEED;
+}
+
+function ROYAALE_CHUNK_SIZE_FOR_TEST() {
+  return ROYALE_CHUNK_SIZE;
+}