qt飞机大战小游戏代码

以下是一个简单的Qt飞机大战小游戏的代码示例：

#include <QApplication>
#include <QGraphicsScene>
#include <QGraphicsView>
#include <QTimer>
#include <QKeyEvent>

// 飞机类
class Player : public QGraphicsRectItem {
public:
    void keyPressEvent(QKeyEvent *event) {
        if (event->key() == Qt::Key_Left) {
            setPos(x() - 10, y());
        } else if (event->key() == Qt::Key_Right) {
            setPos(x() + 10, y());
        }
    }
};

// 子弹类
class Bullet : public QObject, public QGraphicsRectItem {
    Q_OBJECT
public:
    Bullet() {
        QTimer *timer = new QTimer();
        connect(timer, SIGNAL(timeout()), this, SLOT(move()));
        timer->start(50);
    }
public slots:
    void move() {
        setPos(x(), y() - 10);
        if (pos().y() < 0) {
            scene()->removeItem(this);
            delete this;
        }
    }
};

// 敌机类
class Enemy : public QObject, public QGraphicsRectItem {
    Q_OBJECT
public:
    Enemy() {
        QTimer *timer = new QTimer();
        connect(timer, SIGNAL(timeout()), this, SLOT(move()));
        timer->start(50);
    }
public slots:
    void move() {
        setPos(x(), y() + 10);
        if (pos().y() > 600) {
            scene()->removeItem(this);
            delete this;
        }
    }
};

int main(int argc, char *argv[]) {
    QApplication a(argc, argv);
    
    // 创建场景和视图
    QGraphicsScene scene;
    QGraphicsView view(&scene);
    view.setFixedSize(800, 600);
    view.setHorizontalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
    view.setVerticalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
    view.show();
    
    // 创建飞机并添加到场景中
    Player player;
    player.setRect(0, 0, 100, 100);
    player.setPos(350, 500);
    scene.addItem(&player);
    player.setFlag(QGraphicsItem::ItemIsFocusable);
    player.setFocus();
    
    // 按键事件处理
    QObject::connect(&player, SIGNAL(keyPressEvent(QKeyEvent*)), &player, SLOT(keyPressEvent(QKeyEvent*)));
    
    // 创建敌机并添加到场景中
    QTimer enemyTimer;
    QObject::connect(&enemyTimer, SIGNAL(timeout()), [&]() {
        Enemy *enemy = new Enemy();
        enemy->setRect(0, 0, 100, 100);
        enemy->setPos(qrand() % 700, 0);
        scene.addItem(enemy);
    });
    enemyTimer.start(1000);
    
    return a.exec();
}

#include "main.moc"

这只是一个简单的示例代码，实现了一个基本的飞机大战小游戏。你可以根据自己的需求进行进一步的修改和扩展。希望对你有所帮助！