not-tonight/tests/floor/layout-room.test.ts

import { describe, expect, it } from 'vitest';
import { ROOM } from '../../src/scenes/floor/layouts/room';
import { isWalkable, tileAt, worldToTile } from '../../src/scenes/floor/venueMap';
import { assertLayout } from './layoutInvariants';

const tiles = (predicate: (kind: ReturnType<typeof tileAt>) => boolean): number => {
  let n = 0;
  for (let ty = 0; ty < ROOM.map.height; ty++) {
    for (let tx = 0; tx < ROOM.map.width; tx++) if (predicate(tileAt(ROOM.map, tx, ty))) n++;
  }
  return n;
};

describe('ROOM layout', () => {
  it('satisfies the shared venue invariants', () => {
    assertLayout(ROOM, { bar: 4, dance: 6, booth: 1, toilet: 3, smoke: 2, entry: 1, exit: 1 });
  });

  it('matches the venue id the ladder looks it up by', () => {
    // data/venues.ts: a night finds its room by VenueDef.id, so a typo here is
    // a venue that silently falls back to Voltage.
    expect(ROOM.id).toBe('room');
  });

  // ---- the pillars: this venue's movement character ---------------------------
  it('scatters concrete pillars through the main floor as real obstacles', () => {
    const pillars = ROOM.props.filter((p) => p.kind === 'pillar');
    expect(pillars.length).toBeGreaterThanOrEqual(8);
    for (const p of pillars) {
      // A pillar prop over walkable tiles is decoration; the whole point is
      // that you path AROUND these.
      for (let ty = p.ty; ty < p.ty + p.th; ty++) {
        for (let tx = p.tx; tx < p.tx + p.tw; tx++) {
          expect(isWalkable(ROOM.map, tx, ty), `pillar '${p.id}' is walkable at ${tx},${ty}`).toBe(false);
        }
      }
    }
  });

  // ---- the DJ: on the floor, not in a booth ------------------------------------
  it('puts the DJ low and central with no barrier round the desk', () => {
    const decks = ROOM.posts.decks!;
    // Central-ish: within a quarter of the grid of the middle, in both axes.
    expect(Math.abs(decks.tx - ROOM.map.width / 2)).toBeLessThan(ROOM.map.width / 4);
    expect(Math.abs(decks.ty - ROOM.map.height / 2)).toBeLessThan(ROOM.map.height / 4);
    // The DJ stands on the same tiles the crowd does — a `djbooth` or `djfloor`
    // tile under the post means somebody has walled the booth back in.
    expect(tileAt(ROOM.map, decks.tx, decks.ty)).toBe('dance');
    // ...and the desk is genuinely open: three of the four sides of the post
    // are walkable, so you can be shoved off it.
    const sides: readonly (readonly [number, number])[] = [[1, 0], [-1, 0], [0, -1]];
    const open = sides.filter(([dx, dy]) => isWalkable(ROOM.map, decks.tx + dx, decks.ty + dy));
    expect(open).toHaveLength(3);
  });

  it('runs CDJs, not turntables', () => {
    expect(ROOM.props.some((p) => p.kind === 'cdj')).toBe(true);
    expect(ROOM.props.some((p) => p.kind === 'deck')).toBe(false);
  });

  // ---- the dunnies -------------------------------------------------------------
  it('has three cubicles, a cracked basin and no mirror', () => {
    expect(ROOM.map.stalls).toHaveLength(3);
    expect(ROOM.props.filter((p) => p.kind === 'brokenBasin')).toHaveLength(1);
    // Only one of the three still has a door on it; the other two tell their
    // story with what is on the floor outside them.
    expect(ROOM.props.filter((p) => p.kind === 'cubicleDoor')).toHaveLength(1);
    expect(ROOM.props.filter((p) => p.kind === 'wetFloor').length).toBeGreaterThanOrEqual(2);
    expect(ROOM.props.some((p) => p.kind === 'mopBucket')).toBe(true);
  });

  // ---- the loading dock --------------------------------------------------------
  it('smokes on the loading dock: open-sky yard behind a fence and a roller door', () => {
    for (const a of ROOM.map.anchors.smoke) {
      const t = worldToTile(a.x, a.y);
      expect(tileAt(ROOM.map, t.tx, t.ty), `smoke anchor ${t.tx},${t.ty} is not open sky`).toBe('yard');
    }
    expect(tiles((k) => k === 'yard')).toBeGreaterThan(80);
    expect(tiles((k) => k === 'fence')).toBeGreaterThan(0);
    expect(ROOM.props.some((p) => p.kind === 'rollerDoor')).toBe(true);
    expect(ROOM.props.some((p) => p.kind === 'wheelieBin')).toBe(true);
    expect(ROOM.props.filter((p) => p.kind === 'pallet').length).toBeGreaterThanOrEqual(2);
  });

  // ---- the bar -----------------------------------------------------------------
  it('serves cans off a plywood plank, with no taps and no till', () => {
    expect(ROOM.props.some((p) => p.kind === 'plywoodBar')).toBe(true);
    expect(ROOM.props.some((p) => p.kind === 'canStack')).toBe(true);
    expect(ROOM.props.some((p) => p.kind === 'taps' || p.kind === 'till')).toBe(false);
  });

  // ---- the board ---------------------------------------------------------------
  it('hangs THE BOARD by the entry, where shuffleDressCode can be read', () => {
    const board = ROOM.props.find((p) => p.kind === 'ruleBoard');
    expect(board).toBeDefined();
    const entry = worldToTile(ROOM.map.anchors.entry[0]!.x, ROOM.map.anchors.entry[0]!.y);
    expect(Math.abs(board!.tx - entry.tx)).toBeLessThanOrEqual(12);
    expect(Math.abs(board!.ty - entry.ty)).toBeLessThanOrEqual(12);
  });

  // ---- no branding, and no light ------------------------------------------------
  it('paints no neon anywhere, because branding is how you get found', () => {
    expect(tiles((k) => k === 'neon')).toBe(0);
  });

  it('is darker than Voltage: fewer lights, tighter radii, sodium over the dock', () => {
    // Voltage runs 19 zone lights with dance pools at radius 26. If ROOM ever
    // catches up with that, the torch has stopped being the mechanic.
    expect(ROOM.lights.length).toBeLessThanOrEqual(14);
    for (const l of ROOM.lights) expect(l.radius, `light '${l.id}' is too big for ROOM`).toBeLessThanOrEqual(40);
    const dance = ROOM.lights.filter((l) => l.colour === 0xd03470 && l.pulse === 'beat');
    expect(dance.length).toBeGreaterThanOrEqual(4);
    for (const l of dance) expect(l.radius).toBeLessThan(26);
    // The one signature colour ROOM is allowed, and it belongs to the dock.
    const sodium = ROOM.lights.find((l) => l.colour === 0xe08420);
    expect(sodium).toBeDefined();
    expect(tileAt(ROOM.map, sodium!.tx, sodium!.ty)).toBe('yard');
  });

  it('runs the rig on the floor, taped down', () => {
    for (const kind of ['strobe', 'smokeMachine', 'cableSnake', 'stackF1', 'subBass'] as const) {
      expect(ROOM.props.some((p) => p.kind === kind), `no '${kind}' props`).toBe(true);
    }
  });

  it('is bare concrete, kept inside the darkness sheet brightness band', () => {
    const luma = (c: number): number => (((c >> 16) & 0xff) + ((c >> 8) & 0xff) + (c & 0xff)) / 3;
    const palette = ROOM.palette!;
    // Voltage's floor sits at 0x221e2b (~36). ROOM must be darker but not black:
    // a palette that reads right in isolation renders as nothing in the room.
    expect(luma(palette.floor!)).toBeLessThan(36);
    expect(luma(palette.floor!)).toBeGreaterThan(16);
    expect(luma(palette.dance!)).toBeLessThan(luma(palette.floor!) + 12);
  });
});