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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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docs/FUNCTIONAL.md
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@@ -85,7 +85,12 @@ unrestricted). Variants are shown by their **display name** — both Scrabble va
the same name titles the in-game screen. This gates only **starting** a new game — both auto-match and a friend
invitation — so a player still sees and plays existing games of any language. Auto-match
(always 2 players) joins a per-variant pool and is paired with the next waiting human;
after 10 s with no human the robot substitutes. Friend games (2–4) are
after 10 s with no human the robot substitutes. For Russian games (auto-match or friend
invitation), New Game also offers **"Multiple words per turn"** (default **off**): off plays
the simplified **single-word rule** — only the word laid along the player's line must be a
real word, and any incidental perpendicular words are ignored and not scored — while on is
standard Scrabble. English games are always standard and show no such toggle. In auto-match
the choice joins the pairing key, so a player only meets opponents who picked the same rule. Friend games (2–4) are
formed by inviting players from the friend list (an invitation, like a friend code,
is shareable as a Telegram deep link that opens it directly): the inviter chooses the
settings and the game starts once every invitee has accepted — any decline cancels it, and an unanswered invitation