agomizi1cmandClaude Opus 5.5
d92953a270
Replace the hand-rolled betting rules, side pots, showdown and hand evaluator with the published @pokertools/engine and @pokertools/evaluator libraries (MIT, pinned to 2.1.0). - server/hand.js now wraps a PokerEngine per hand: it maps seats, mirrors stacks, staggers the all-in runout, and pays host-chosen winners on cash-only tables. - server/cards.js and server/ai.js use the library evaluator. - Out-of-turn folds go through the engine's stand; all-in hands stay live when the player leaves; uncalled bets return to a leaver. - The engine refuses some check-able folds that would leave a side pot without eligible players; those now return a message (or check for a leaving player) instead of crashing. - BB must be greater than SB (engine requirement); Node >= 24. - Tests rig cards via engine snapshots and cover the new edge cases. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
51 lines
2.0 KiB
JavaScript
51 lines
2.0 KiB
JavaScript
'use strict';
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// 役の判定は @pokertools/evaluator（@pokertools/engine のショーダウンと同じ判定器）を使う。
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// ここでは表示用に、最強の5枚と日本語の役名を求める。
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// カードは "As"（スペードのA）, "Td"（ダイヤの10）のような2文字
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const { evaluate, getCardCodes, rank, HandRank } = require('@pokertools/evaluator');
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const HAND_NAMES = {
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[HandRank.HighCard]: 'ハイカード',
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[HandRank.OnePair]: 'ワンペア',
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[HandRank.TwoPair]: 'ツーペア',
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[HandRank.ThreeOfAKind]: 'スリーカード',
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[HandRank.Straight]: 'ストレート',
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[HandRank.Flush]: 'フラッシュ',
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[HandRank.FullHouse]: 'フルハウス',
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[HandRank.FourOfAKind]: 'フォーカード',
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[HandRank.StraightFlush]: 'ストレートフラッシュ',
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};
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const ROYAL_FLUSH = 1; // 判定器のスコアは小さいほど強く、1 がロイヤルフラッシュ
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// 5〜7枚の中で最も強い役。score は小さいほど強い
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function bestHand(cards) {
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const codes = getCardCodes(cards);
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const score = evaluate(codes);
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const name = score === ROYAL_FLUSH ? 'ロイヤルフラッシュ' : HAND_NAMES[rank(codes)];
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// 役を作っている5枚（7枚から5枚を選ぶ21通りで、全体と同じ強さになる組）
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let five = cards.slice(0, 5);
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if (cards.length > 5) {
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const n = cards.length;
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const pick = (start, chosen) => {
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if (chosen.length === 5) return evaluate(chosen.map((i) => codes[i])) === score ? chosen.slice() : null;
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for (let i = start; i <= n - (5 - chosen.length); i++) {
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chosen.push(i);
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const found = pick(i + 1, chosen);
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chosen.pop();
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if (found) return found;
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}
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return null;
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};
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five = pick(0, []).map((i) => cards[i]);
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}
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return { score, cards: five, name };
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}
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// a が強ければ正、b が強ければ負、同じ強さなら 0
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function compareScore(a, b) {
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return b - a;
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}
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module.exports = { bestHand, compareScore };
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