java写一个斗地主游戏的游戏规则代码

斗地主是一种扑克牌游戏，以下是一个简单的斗地主游戏规则的 Java 代码实现：

1. 定义扑克牌类 Poker，包括花色和点数属性：

public class Poker {
    private String suit;  // 花色
    private int rank;     // 点数

    public Poker(String suit, int rank) {
        this.suit = suit;
        this.rank = rank;
    }

    public String getSuit() {
        return suit;
    }

    public int getRank() {
        return rank;
    }

    // 覆盖 toString() 方法，输出扑克牌的字符串表示
    public String toString() {
        String[] suits = {"♠", "♥", "♣", "♦"};
        String[] ranks = {"2", "3", "4", "5", "6", "7", "8", "9", "10", "J", "Q", "K", "A"};
        return suits[suit] + ranks[rank-2];
    }
}

2. 定义牌堆类 Deck，包括扑克牌的初始化、洗牌和发牌方法：

import java.util.ArrayList;
import java.util.Collections;

public class Deck {
    private ArrayList<Poker> cards;

    public Deck() {
        cards = new ArrayList<Poker>();
        for (int i = 0; i < 4; i++) {  // 四种花色
            for (int j = 2; j <= 14; j++) {  // 13种点数
                cards.add(new Poker(i, j));
            }
        }
    }

    public void shuffle() {
        Collections.shuffle(cards);
    }

    public ArrayList<Poker> deal(int n) {
        ArrayList<Poker> hand = new ArrayList<Poker>();
        for (int i = 0; i < n; i++) {
            hand.add(cards.remove(0));
        }
        return hand;
    }
}

3. 定义游戏规则类 Rules，包括牌型判断和比较方法：

import java.util.ArrayList;

public class Rules {
    public static boolean isSingle(ArrayList<Poker> hand) {
        return hand.size() == 1;
    }

    public static boolean isPair(ArrayList<Poker> hand) {
        if (hand.size() != 2) {
            return false;
        }
        Poker p1 = hand.get(0);
        Poker p2 = hand.get(1);
        return p1.getRank() == p2.getRank();
    }

    public static boolean isThree(ArrayList<Poker> hand) {
        if (hand.size() != 3) {
            return false;
        }
        Poker p1 = hand.get(0);
        Poker p2 = hand.get(1);
        Poker p3 = hand.get(2);
        return p1.getRank() == p2.getRank() && p2.getRank() == p3.getRank();
    }

    public static boolean isBomb(ArrayList<Poker> hand) {
        if (hand.size() != 4) {
            return false;
        }
        Poker p1 = hand.get(0);
        Poker p2 = hand.get(1);
        Poker p3 = hand.get(2);
        Poker p4 = hand.get(3);
        return p1.getRank() == p2.getRank() && p2.getRank() == p3.getRank() && p3.getRank() == p4.getRank();
    }

    public static boolean isStraight(ArrayList<Poker> hand) {
        if (hand.size() != 5) {
            return false;
        }
        int rank = hand.get(0).getRank();
        for (int i = 1; i < 5; i++) {
            if (hand.get(i).getRank() != rank + i) {
                return false;
            }
        }
        return true;
    }

    public static boolean isFlush(ArrayList<Poker> hand) {
        if (hand.size() != 5) {
            return false;
        }
        String suit = hand.get(0).getSuit();
        for (int i = 1; i < 5; i++) {
            if (!hand.get(i).getSuit().equals(suit)) {
                return false;
            }
        }
        return true;
    }

    public static boolean isFullHouse(ArrayList<Poker> hand) {
        if (hand.size() != 5) {
            return false;
        }
        ArrayList<Poker> pair = new ArrayList<Poker>();
        ArrayList<Poker> three = new ArrayList<Poker>();
        for (Poker card : hand) {
            if (pair.size() == 0 || card.getRank() == pair.get(0).getRank()) {
                pair.add(card);
            } else if (three.size() == 0 || card.getRank() == three.get(0).getRank()) {
                three.add(card);
            } else {
                return false;
            }
        }
        return pair.size() == 2 && three.size() == 3;
    }

    public static boolean isStraightFlush(ArrayList<Poker> hand) {
        return isStraight(hand) && isFlush(hand);
    }

    public static boolean isRoyalFlush(ArrayList<Poker> hand) {
        if (hand.size() != 5) {
            return false;
        }
        int rank = hand.get(0).getRank();
        for (int i = 1; i < 5; i++) {
            if (hand.get(i).getRank() != rank + i) {
                return false;
            }
        }
        String suit = hand.get(0).getSuit();
        for (int i = 1; i < 5; i++) {
            if (!hand.get(i).getSuit().equals(suit)) {
                return false;
            }
        }
        return rank == 10;
    }

    public static boolean compare(ArrayList<Poker> hand1, ArrayList<Poker> hand2) {
        if (isRoyalFlush(hand1) && !isRoyalFlush(hand2)) {
            return true;
        } else if (!isRoyalFlush(hand1) && isRoyalFlush(hand2)) {
            return false;
        } else if (isRoyalFlush(hand1) && isRoyalFlush(hand2)) {
            return false;
        } else if (isStraightFlush(hand1) && !isStraightFlush(hand2)) {
            return true;
        } else if (!isStraightFlush(hand1) && isStraightFlush(hand2)) {
            return false;
        } else if (isStraightFlush(hand1) && isStraightFlush(hand2)) {
            return hand1.get(4).getRank() > hand2.get(4).getRank();
        } else if (isFourOfAKind(hand1) && !isFourOfAKind(hand2)) {
            return true;
        } else if (!isFourOfAKind(hand1) && isFourOfAKind(hand2)) {
            return false;
        } else if (isFourOfAKind(hand1) && isFourOfAKind(hand2)) {
            return hand1.get(2).getRank() > hand2.get(2).getRank();
        } else if (isFullHouse(hand1) && !isFullHouse(hand2)) {
            return true;
        } else if (!isFullHouse(hand1) && isFullHouse(hand2)) {
            return false;
        } else if (isFullHouse(hand1) && isFullHouse(hand2)) {
            return hand1.get(2).getRank() > hand2.get(2).getRank();
        } else if (isFlush(hand1) && !isFlush(hand2)) {
            return true;
        } else if (!isFlush(hand1) && isFlush(hand2)) {
            return false;
        } else if (isFlush(hand1) && isFlush(hand2)) {
            return hand1.get(4).getRank() > hand2.get(4).getRank();
        } else if (isStraight(hand1) && !isStraight(hand2)) {
            return true;
        } else if (!isStraight(hand1) && isStraight(hand2)) {
            return false;
        } else if (isStraight(hand1) && isStraight(hand2)) {
            return hand1.get(4).getRank() > hand2.get(4).getRank();
        } else if (isThree(hand1) && !isThree(hand2)) {
            return true;
        } else if (!isThree(hand1) && isThree(hand2)) {
            return false;
        } else if (isThree(hand1) && isThree(hand2)) {
            return hand1.get(2).getRank() > hand2.get(2).getRank();
        } else if (isPair(hand1) && !isPair(hand2)) {
            return true;
        } else if (!isPair(hand1) && isPair(hand2)) {
            return false;
        } else if (isPair(hand1) && isPair(hand2)) {
            return hand1.get(1).getRank() > hand2.get(1).getRank();
        } else {
            return hand1.get(4).getRank() > hand2.get(4).getRank();
        }
    }
}

4. 定义斗地主游戏类 Landlord，包括游戏流程和判断胜负：

import java.util.ArrayList;
import java.util.Scanner;

public class Landlord {
    private Deck deck;
    private ArrayList<ArrayList<Poker>> hands;
    private ArrayList<Poker> pool;
    private int currentPlayer;
    private int lastPlayer;
    private ArrayList<Poker> lastHand;

    public Landlord() {
        deck = new Deck();
        deck.shuffle();
        hands = new ArrayList<ArrayList<Poker>>();
        for (int i = 0; i < 3; i++) {
            hands.add(deck.deal(17));
        }
        pool = deck.deal(3);
        currentPlayer = 0;
        lastPlayer = -1;
        lastHand = null;
    }

    public void play() {
        while (!gameOver()) {
            showHands();
            showPool();
            if (currentPlayer == lastPlayer) {
                lastHand = null;
            }
            ArrayList<Poker> hand = getHand();
            if (hand == null) {
                System.out.println("不符合规则，请重新出牌！");
                continue;
            }
            if (lastHand != null && !Rules.compare(hand, lastHand)) {
                System.out.println("不能出这个组合，请重新出牌！");
                continue;
            }
            lastPlayer = currentPlayer;
            lastHand = hand;
            ArrayList<Poker> currentHand = hands.get(currentPlayer);
            for (Poker card : hand) {
                currentHand.remove(card);
            }
            pool.addAll(hand);
            currentPlayer = (currentPlayer + 1) % 3;
        }
        showHands();
        showPool();
        int winner = getWinner();
        System.out.println("游戏结束，玩家 " + winner + " 获胜！");
    }

    private boolean gameOver() {
        for (ArrayList<Poker> hand : hands) {
            if (hand.size() == 0) {
                return true;
            }
        }
        return false;
    }

    private void showHands() {
        for (int i = 0; i < 3; i++) {
            System.out.print("玩家 " + i + "：");
            ArrayList<Poker> hand = hands.get(i);
            for (Poker card : hand) {
                System.out.print(card + " ");
            }
            System.out.println();
        }
    }

    private void showPool() {
        System.out.print("桌面牌池：");
        for (Poker card : pool) {
            System.out.print(card + " ");
        }
        System.out.println();
    }

    private ArrayList<Poker> getHand() {
        System.out.print("玩家 " + currentPlayer + " 请出牌：");
        Scanner scanner = new Scanner(System.in);
        String input = scanner.nextLine();
        String[] cards = input.split(" ");
        ArrayList<Poker> hand = new ArrayList<Poker>();
        for (String card : cards) {
            boolean found = false;
            for (Poker p : hands.get(currentPlayer)) {
                if (card.equals(p.toString())) {
                    hand.add(p);
                    found = true;
                    break;
                }
            }
            if (!found) {
                return null;
            }
        }
        return hand;
    }

    private int getWinner() {
        int winner = -1;
        for (int i = 0; i < 3; i++) {
            if (hands.get(i).size() == 0) {
                winner = i;
            }
        }
        if (winner == -1) {
            return -1;
        }
        int score = 0;
        for (Poker card : pool) {
            if (card.getRank() == 5 || card.getRank() == 10 || card.getRank() == 13) {
                score += 1;
            } else if (card.getRank() == 11) {
                score += 2;
            } else if (card.getRank() == 12) {
                score += 3;
            }
        }
        return (winner + score) % 3;
    }

    public static void main(String[] args) {
        Landlord game = new Landlord();
        game.play();
    }
}

以上是一个简单的斗地主游戏规则的 Java 代码实现，仅供参考。