miaoda-game-tractor-analysis-core

Pure analysis for fixed four-player double-deck Tractor profile: card points, effective suits/trump, physical pairs, consecutive-pair tractors, lead/follow obligations, trick winners, hidden top-set challenges, declarations, kitty multiplier, settlement, and level advancement. Complete zones/turns/safe views live in tractor-rules.

pnpm add miaoda-game-tractor-analysis-core

const trump = {levelRank: 7, trumpSuit: 'clubs'};
const lead = analyzeTractorLead(leadCards, trump);
if (!lead.ok) throw new Error(lead.message);
const obligation = getTractorFollowObligation(lead.pattern, followerHand, trump);
const follow = validateTractorFollow(lead.pattern, followerHand, selectedCards, trump);

All cards are physical two-deck cards with unique IDs and copy 0|1; a pair requires the two copies of one printed face. determineTractorTrickWinner assumes every response was already validated and preserves earlier play on equal strength.

A top-set lead depends on hidden follower hands. Only a trusted host calls resolveTractorTopSetAttempt; publish its accepted/challenged result without exposing other challenge choices. Card movement and atomic commits remain host-owned.