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feat: "multiple words per turn" rule for Russian games
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Add a per-game rule chosen on New Game for Russian variants (default off = the
single-word rule; on = standard Scrabble). Off, only the main word along the play
direction is validated and scored; perpendicular cross-words are ignored,
including in robot move generation. The rule rides every create and enqueue
request and joins the matchmaking key, so games and auto-match stay one uniform
path; "Russian-only" is a UI affordance (English always sends standard and shows
no toggle).

- Engine: consume scrabble-solver v1.1.0's PlayOptions{IgnoreCrossWords}, threaded
  through engine.Options.MultipleWordsPerTurn -> playOpts() into validate, score
  and generate.
- Backend: thread the flag through game CreateParams/Game + store (games column),
  lobby InvitationSettings + invitation row, and the matchmaker queue key (variant
  + rule); persisted, so a rebuilt-from-journal game keeps it. Baseline migration
  gains multiple_words_per_turn (DB not versioned); jet regenerated.
- Edge: multiple_words_per_turn added to the EnqueueRequest / CreateInvitationRequest
  FlatBuffers tables (Go + TS regenerated) and threaded through the gateway.
- UI: a "Multiple words per turn" toggle on New Game, shown for Russian variants
  only (auto-match and friend invite), default off; English silently sends standard.
- Tests: backend engine/matchmaker; UI unit (gating) + Playwright e2e (solver
  corner-case + GCG fixtures ship in v1.1.0). Docs + PRERELEASE tracker updated.
This commit is contained in:
Ilia Denisov
2026-06-12 02:17:30 +02:00
parent d4a1616d03
commit 74455c7b12
46 changed files with 643 additions and 296 deletions
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backend/README.md
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@@ -29,7 +29,8 @@ that auto-resigns overdue turns (honouring each player's daily away window). Lik
the engine it is a service/store layer; the HTTP surface lives in the `gateway`.
The lobby and social fabric. `internal/lobby` holds an in-memory
matchmaking pool (FIFO per variant, pairs two humans into an auto-match) and
matchmaking pool (FIFO per variant and per-turn word rule, pairs two humans into an
auto-match) and
friend-game invitations (invite → accept, starting a 2–4 player game once every
invitee accepts). `internal/social` owns the friend graph (request/accept),
per-user blocks, and per-game chat with nudges folded in as a message kind; chat