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61 lines
1.3 KiB
61 lines
1.3 KiB
<?php
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declare(strict_types=1);
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namespace Yangweijie\Ui2\Games\OnePieceDoudizhu;
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/**
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* 54 张牌组：4 花色 × 3..2 + 双王。洗牌后发 3 手 + 3 张底牌。
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*/
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final class Deck
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{
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/**
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* @return list<Card>
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*/
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public static function build(): array
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{
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$cards = [];
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foreach (Card::SUITS as $suit) {
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for ($r = 3; $r <= 15; $r++) {
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$cards[] = new Card($r, $suit);
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}
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}
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$cards[] = Card::smallJoker();
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$cards[] = Card::bigJoker();
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return $cards;
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}
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/**
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* 洗牌发牌。
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*
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* @return array{hands: array<int, list<Card>>, bottom: list<Card>}
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*/
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public static function deal(): array
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{
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$cards = self::build();
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\shuffle($cards);
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$hands = [[], [], []];
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for ($i = 0; $i < 51; $i++) {
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$hands[$i % 3][] = $cards[$i];
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}
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$bottom = \array_slice($cards, 51, 3);
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foreach ($hands as $i => $hand) {
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self::sort($hands[$i]);
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}
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return ['hands' => $hands, 'bottom' => $bottom];
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}
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/**
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* 按牌力升序排序（同点花色保持稳定）。
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*
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* @param list<Card> $hand
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*/
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public static function sort(array &$hand): void
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{
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\usort($hand, static fn (Card $a, Card $b): int => $a->rank <=> $b->rank);
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}
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}
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