用Qt代码写一个五子棋项目

好的，下面是一个简单的五子棋项目的代码示例，基于Qt 5：

mainwindow.h:

#ifndef MAINWINDOW_H
#define MAINWINDOW_H

#include <QMainWindow>
#include <QPushButton>
#include <QLabel>

class MainWindow : public QMainWindow
{
    Q_OBJECT

public:
    MainWindow(QWidget *parent = nullptr);
    ~MainWindow();

private slots:
    void onNewGameClicked();
    void onQuitClicked();
    void onGridClicked();

private:
    void initGame();
    void clearBoard();
    bool checkWin(int row, int col);

    enum { BoardSize = 15 };
    enum { NoPlayer, BlackPlayer, WhitePlayer };
    int m_board[BoardSize][BoardSize];
    int m_currentPlayer;
    QLabel* m_messageLabel;
    QPushButton* m_newGameButton;
    QPushButton* m_quitButton;
    QPushButton* m_grid[BoardSize][BoardSize];
};

#endif // MAINWINDOW_H

mainwindow.cpp:

#include "mainwindow.h"

MainWindow::MainWindow(QWidget *parent)
    : QMainWindow(parent)
{
    // Set window title and size
    setWindowTitle(tr("Five in a Row"));
    setFixedSize(600, 600);

    // Create buttons
    m_newGameButton = new QPushButton(tr("New Game"), this);
    m_newGameButton->setGeometry(20, 20, 120, 40);
    connect(m_newGameButton, SIGNAL(clicked()), this, SLOT(onNewGameClicked()));

    m_quitButton = new QPushButton(tr("Quit"), this);
    m_quitButton->setGeometry(20, 70, 120, 40);
    connect(m_quitButton, SIGNAL(clicked()), this, SLOT(onQuitClicked()));

    // Create message label
    m_messageLabel = new QLabel(tr("Black player's turn"), this);
    m_messageLabel->setGeometry(160, 20, 420, 40);
    QFont font = m_messageLabel->font();
    font.setPointSize(18);
    m_messageLabel->setFont(font);

    // Create grid buttons
    for (int row = 0; row < BoardSize; ++row) {
        for (int col = 0; col < BoardSize; ++col) {
            m_grid[row][col] = new QPushButton(this);
            m_grid[row][col]->setGeometry(160 + col * 36, 80 + row * 36, 36, 36);
            m_grid[row][col]->setProperty("row", row);
            m_grid[row][col]->setProperty("col", col);
            connect(m_grid[row][col], SIGNAL(clicked()), this, SLOT(onGridClicked()));
        }
    }

    // Initialize game
    initGame();
}

MainWindow::~MainWindow()
{
}

void MainWindow::onNewGameClicked()
{
    initGame();
}

void MainWindow::onQuitClicked()
{
    close();
}

void MainWindow::onGridClicked()
{
    QPushButton* button = qobject_cast<QPushButton*>(sender());
    int row = button->property("row").toInt();
    int col = button->property("col").toInt();

    if (m_board[row][col] == NoPlayer) {
        // Set player's mark on board
        m_board[row][col] = m_currentPlayer;
        button->setText(m_currentPlayer == BlackPlayer ? "X" : "O");

        // Check if player won
        if (checkWin(row, col)) {
            QString message = m_currentPlayer == BlackPlayer ? "Black player wins!" : "White player wins!";
            m_messageLabel->setText(message);
            return;
        }

        // Check if game is a draw
        bool draw = true;
        for (int row = 0; row < BoardSize; ++row) {
            for (int col = 0; col < BoardSize; ++col) {
                if (m_board[row][col] == NoPlayer) {
                    draw = false;
                    break;
                }
            }
            if (!draw) {
                break;
            }
        }
        if (draw) {
            m_messageLabel->setText("Game is a draw");
            return;
        }

        // Switch to other player's turn
        m_currentPlayer = m_currentPlayer == BlackPlayer ? WhitePlayer : BlackPlayer;
        QString message = m_currentPlayer == BlackPlayer ? "Black player's turn" : "White player's turn";
        m_messageLabel->setText(message);
    }
}

void MainWindow::initGame()
{
    // Clear board
    clearBoard();

    // Set black player to start
    m_currentPlayer = BlackPlayer;

    // Set message label
    QString message = m_currentPlayer == BlackPlayer ? "Black player's turn" : "White player's turn";
    m_messageLabel->setText(message);

    // Clear grid buttons
    for (int row = 0; row < BoardSize; ++row) {
        for (int col = 0; col < BoardSize; ++col) {
            m_grid[row][col]->setText("");
        }
    }
}

void MainWindow::clearBoard()
{
    for (int row = 0; row < BoardSize; ++row) {
        for (int col = 0; col < BoardSize; ++col) {
            m_board[row][col] = NoPlayer;
        }
    }
}

bool MainWindow::checkWin(int row, int col)
{
    // Check horizontal
    int count = 0;
    for (int i = qMax(0, col - 4); i <= qMin(BoardSize - 1, col + 4); ++i) {
        if (m_board[row][i] == m_currentPlayer) {
            ++count;
            if (count == 5) {
                return true;
            }
        } else {
            count = 0;
        }
    }

    // Check vertical
    count = 0;
    for (int i = qMax(0, row - 4); i <= qMin(BoardSize - 1, row + 4); ++i) {
        if (m_board[i][col] == m_currentPlayer) {
            ++count;
            if (count == 5) {
                return true;
            }
        } else {
            count = 0;
        }
    }

    // Check diagonal
    count = 0;
    for (int i = -4; i <= 4; ++i) {
        int r = row + i;
        int c = col + i;
        if (r >= 0 && r < BoardSize && c >= 0 && c < BoardSize) {
            if (m_board[r][c] == m_currentPlayer) {
                ++count;
                if (count == 5) {
                    return true;
                }
            } else {
                count = 0;
            }
        }
    }

    // Check anti-diagonal
    count = 0;
    for (int i = -4; i <= 4; ++i) {
        int r = row + i;
        int c = col - i;
        if (r >= 0 && r < BoardSize && c >= 0 && c < BoardSize) {
            if (m_board[r][c] == m_currentPlayer) {
                ++count;
                if (count == 5) {
                    return true;
                }
            } else {
                count = 0;
            }
        }
    }

    return false;
}

这个五子棋项目包括一个主窗口类MainWindow，它有一个15x15的网格和两个按钮：一个用于开始新游戏，另一个用于退出。网格的每个单元格都是一个QPushButton，点击它将在该单元格上放置当前玩家的标记。游戏的规则是玩家必须放置五个相同的标记（“X”或“O”）以赢得比赛。当游戏结束时，程序会显示一个消息标签，告诉玩家是哪个玩家赢了，或者游戏是平局。