Qt在vs里写一个小游戏

下面是一个使用Qt在Visual Studio中编写的简单小游戏的示例代码，具体实现了一个简单的扫雷游戏。

#include <QApplication>
#include <QMainWindow>
#include <QGridLayout>
#include <QLabel>
#include <QPushButton>
#include <QTime>

class MineSweep : public QMainWindow
{
    Q_OBJECT

public:
    MineSweep(QWidget *parent = 0);
    ~MineSweep();

private slots:
    void buttonClicked();

private:
    int countNearbyMines(int row, int col) const;
    void showAllMines();

    static const int ROWS = 10;
    static const int COLS = 10;
    static const int MINES = 10;

    QPushButton *m_buttons[ROWS][COLS];
    int m_mines[ROWS][COLS];
    bool m_visited[ROWS][COLS];
};

MineSweep::MineSweep(QWidget *parent)
    : QMainWindow(parent)
{
    QGridLayout *grid = new QGridLayout();
    QWidget *centralWidget = new QWidget(this);
    centralWidget->setLayout(grid);
    setCentralWidget(centralWidget);

    // 初始化雷区
    for (int i = 0; i < ROWS; ++i) {
        for (int j = 0; j < COLS; ++j) {
            m_mines[i][j] = 0;
            m_visited[i][j] = false;

            QPushButton *button = new QPushButton(this);
            button->setFixedSize(30, 30);
            button->setSizePolicy(QSizePolicy::Fixed, QSizePolicy::Fixed);
            button->setStyleSheet("text-align: center;");
            button->setProperty("row", i);
            button->setProperty("col", j);
            button->setText("");
            connect(button, SIGNAL(clicked()), this, SLOT(buttonClicked()));
            m_buttons[i][j] = button;

            grid->addWidget(button, i, j);
        }
    }

    // 放置雷
    qsrand(QTime::currentTime().msec());
    for (int i = 0; i < MINES; ++i) {
        int row = qrand() % ROWS;
        int col = qrand() % COLS;
        m_mines[row][col] = 1;
    }
}

MineSweep::~MineSweep()
{

}

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

    // 如果已经被访问过，则直接返回
    if (m_visited[row][col]) {
        return;
    }

    // 如果是雷，游戏结束
    if (m_mines[row][col] == 1) {
        button->setText("*");
        showAllMines();
        return;
    }

    // 计算周围雷数
    int count = countNearbyMines(row, col);

    // 如果周围没有雷，则递归访问周围的方格
    if (count == 0) {
        button->setText("0");
        m_visited[row][col] = true;
        for (int i = -1; i <= 1; ++i) {
            for (int j = -1; j <= 1; ++j) {
                int newRow = row + i;
                int newCol = col + j;
                if (newRow >= 0 && newRow < ROWS && newCol >= 0 && newCol < COLS) {
                    buttonClicked(m_buttons[newRow][newCol]);
                }
            }
        }
    } else { // 否则显示周围的雷数
        button->setText(QString::number(count));
        m_visited[row][col] = true;
    }
}

int MineSweep::countNearbyMines(int row, int col) const
{
    int count = 0;
    for (int i = -1; i <= 1; ++i) {
        for (int j = -1; j <= 1; ++j) {
            int newRow = row + i;
            int newCol = col + j;
            if (newRow >= 0 && newRow < ROWS && newCol >= 0 && newCol < COLS) {
                count += m_mines[newRow][newCol];
            }
        }
    }
    return count;
}

void MineSweep::showAllMines()
{
    for (int i = 0; i < ROWS; ++i) {
        for (int j = 0; j < COLS; ++j) {
            if (m_mines[i][j] == 1) {
                m_buttons[i][j]->setText("*");
            }
        }
    }
}

int main(int argc, char *argv[])
{
    QApplication a(argc, argv);
    MineSweep w;
    w.show();
    return a.exec();
}

这个小游戏使用了Qt的QPushButton控件来显示方格，并使用QGridLayout对它们进行布局。放置雷的过程中，使用了Qt提供的随机数生成函数qrand()和QTime::currentTime()。在按钮被点击时，会调用buttonClicked()函数来处理，其中会根据当前方格周围的雷数来显示数字或者雷的图标。如果点击的方格是一个雷，则游戏结束，显示所有的雷的位置。