java 五子棋游戏实现

下面是一个简单的 Java 五子棋游戏实现的代码示例：

import java.util.Scanner;

public class Gomoku {
    private static final int BOARD_SIZE = 15;
    private static final char[][] board = new char[BOARD_SIZE][BOARD_SIZE];
    private static final Scanner scanner = new Scanner(System.in);

    private static int x, y;

    public static void main(String[] args) {
        initBoard();
        printBoard();
        while (true) {
            playerRound('X');
            if (isWin(x, y)) {
                System.out.println("Player X wins!");
                break;
            }
            if (isDraw()) {
                System.out.println("Draw!");
                break;
            }
            playerRound('O');
            if (isWin(x, y)) {
                System.out.println("Player O wins!");
                break;
            }
            if (isDraw()) {
                System.out.println("Draw!");
                break;
            }
        }
    }

    private static void initBoard() {
        for (int i = 0; i < BOARD_SIZE; i++) {
            for (int j = 0; j < BOARD_SIZE; j++) {
                board[i][j] = '-';
            }
        }
    }

    private static void printBoard() {
        for (int i = 0; i < BOARD_SIZE; i++) {
            for (int j = 0; j < BOARD_SIZE; j++) {
                System.out.print(board[i][j] + " ");
            }
            System.out.println();
        }
    }

    private static void playerRound(char player) {
        System.out.println("Player " + player + ", enter your move (row[1-" + BOARD_SIZE + "] column[1-" + BOARD_SIZE + "]):");
        while (true) {
            String input = scanner.nextLine();
            String[] parts = input.split(" ");
            if (parts.length != 2) {
                System.out.println("Invalid input!");
                continue;
            }
            try {
                int row = Integer.parseInt(parts[0]) - 1;
                int col = Integer.parseInt(parts[1]) - 1;
                if (row < 0 || row >= BOARD_SIZE || col < 0 || col >= BOARD_SIZE) {
                    System.out.println("Invalid input!");
                    continue;
                }
                if (board[row][col] != '-') {
                    System.out.println("Invalid move!");
                    continue;
                }
                board[row][col] = player;
                x = row;
                y = col;
                printBoard();
                break;
            } catch (NumberFormatException e) {
                System.out.println("Invalid input!");
            }
        }
    }

    private static boolean isWin(int row, int col) {
        char player = board[row][col];
        int count = 0;
        for (int i = col - 4; i <= col + 4; i++) {
            if (i < 0 || i >= BOARD_SIZE) {
                continue;
            }
            if (board[row][i] == player) {
                count++;
                if (count == 5) {
                    return true;
                }
            } else {
                count = 0;
            }
        }
        count = 0;
        for (int i = row - 4; i <= row + 4; i++) {
            if (i < 0 || i >= BOARD_SIZE) {
                continue;
            }
            if (board[i][col] == player) {
                count++;
                if (count == 5) {
                    return true;
                }
            } else {
                count = 0;
            }
        }
        count = 0;
        for (int i = -4; i <= 4; i++) {
            int r = row + i;
            int c = col + i;
            if (r < 0 || r >= BOARD_SIZE || c < 0 || c >= BOARD_SIZE) {
                continue;
            }
            if (board[r][c] == player) {
                count++;
                if (count == 5) {
                    return true;
                }
            } else {
                count = 0;
            }
        }
        count = 0;
        for (int i = -4; i <= 4; i++) {
            int r = row + i;
            int c = col - i;
            if (r < 0 || r >= BOARD_SIZE || c < 0 || c >= BOARD_SIZE) {
                continue;
            }
            if (board[r][c] == player) {
                count++;
                if (count == 5) {
                    return true;
                }
            } else {
                count = 0;
            }
        }
        return false;
    }

    private static boolean isDraw() {
        for (int i = 0; i < BOARD_SIZE; i++) {
            for (int j = 0; j < BOARD_SIZE; j++) {
                if (board[i][j] == '-') {
                    return false;
                }
            }
        }
        return true;
    }
}

这个代码实现了一个简单的控制台五子棋游戏。在游戏中，玩家执黑子（'X'），电脑执白子（'O'）。玩家和电脑轮流下棋，如果某一方连成五子，则游戏结束。如果棋盘填满而没有任何一方连成五子，则游戏平局。