houserules/packages/server
Joey Yakimowich-Payne f2dff7e530
feat(multiplayer): host color preference (white/black/random)
Feature 1 of post-epic-deferrals. Lets the room creator pick which
color they play: white, black, or random. Joiner always takes the
remaining color (no joiner-side preference in v1 per plan decision
1b).

Protocol:
  - RoomCreatePayloadSchema gains an optional preferredColor field
    with the three-value enum. Omitting the field defaults to
    'white' on the server — byte-identical to pre-F1 behaviour so
    legacy clients are untouched.
  - Client type mirror (packages/chess/src/net/types.ts) kept in
    sync; exports PreferredColor type alias.

Server:
  - RoomRegistry.createRoom gains a preferredColor parameter.
    'random' is resolved at room creation via Math.random() and
    never leaks beyond this function — the concrete color is stored
    on room.creatorColor + room.joinerColor so reconnects surface
    the same assignment.
  - Room interface adds creatorColor + joinerColor fields.
  - JoinResult success variant widens from 'color: "black"' to
    'color: Color' to accept either assignment.
  - broadcast.ts threads payload.preferredColor through to
    createRoom.

UI:
  - Lobby.tsx adds a 3-button radiogroup ('Play as: White / Black /
    Random') between LayoutPicker and the modifier-profile picker.
    Active button is filled (bg-neutral-900), inactive is ghost.
    Omits the field from the room.create payload when left at the
    default so old servers keep working.
  - data-testid='color-preference-{white,black,random}' for e2e.

Tests:
  - 7 new protocol.test.ts cases: each enum value accepted,
    omitted valid, invalid strings rejected, composition with
    existing fields.
  - 5 new rooms.test.ts cases: back-compat default, explicit
    white, explicit black, random distribution across 40 samples,
    random-resolved color stored idempotently.
  - 4 new multiplayer.spec.ts cases: host=black flow, host=random
    disjoint-color assertion, back-compat no-field flow, UI
    buttons render + toggle with correct aria-checked state.

Verification: 1663 unit tests (+12) + 87/87 Playwright (+4).
Typecheck + lint clean across chess + server.

Plan: .sisyphus/plans/post-epic-deferrals.md Feature 1 complete.
2026-04-21 10:51:45 -06:00
..
src feat(multiplayer): host color preference (white/black/random) 2026-04-21 10:51:45 -06:00
package.json feat(server): add authoritative game session per room (P4.5) 2026-04-16 17:17:42 -06:00
PROTOCOL.md feat(server): modifier profile protocol schemas + error codes 2026-04-18 22:43:58 -06:00
README.md chore(root): scaffold monorepo — Phase 0 complete 2026-04-16 13:32:21 -06:00
tsconfig.json feat(server): add authoritative game session per room (P4.5) 2026-04-16 17:17:42 -06:00
vitest.config.ts chore(root): scaffold monorepo — Phase 0 complete 2026-04-16 13:32:21 -06:00

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