贪吃蛇QT c++实现

Question

我想要将(":/image/tuzi.png")图片作为蛇头
(":/image/tuzi_shen.png")作为蛇身
(":/image/xfood.png")作为随机生成的食物，用QTc++实现一个贪吃蛇游戏，蛇头吃到食物蛇身加一，初始蛇为一个蛇头两个蛇身，食物随机生成，.h和.cpp该怎么写

Answer 1

晚上好🌙🌙🌙
本答案参考ChatGPT-3.5

以下是一个使用QT C++实现的贪吃蛇游戏的.h和.cpp文件的示例代码：

snake.h：

#ifndef SNAKE_H
#define SNAKE_H

#include <QMainWindow>
#include <QKeyEvent>
#include <QTimer>
#include <QPainter>

class Snake : public QMainWindow
{
    Q_OBJECT

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

protected:
    void paintEvent(QPaintEvent *event);
    void keyPressEvent(QKeyEvent *event);
    void timerEvent(QTimerEvent *event);

private:
    enum Direction { Up, Down, Left, Right };

    int timerId;
    Direction direction;
    QPoint head;
    QList<QPoint> body;
    QPoint food;

    void generateFood();
    bool checkCollision();
};

#endif // SNAKE_H

snake.cpp：

#include "snake.h"

Snake::Snake(QWidget *parent)
    : QMainWindow(parent)
{
    setFixedSize(400, 400);
    direction = Direction::Right;
    head = QPoint(10, 10);
    body.append(QPoint(9, 10));
    body.append(QPoint(8, 10));
    generateFood();

    timerId = startTimer(100); // 设置定时器，每100ms触发一次定时器事件
}

Snake::~Snake()
{
}

void Snake::paintEvent(QPaintEvent *event)
{
    QPainter painter(this);
    painter.fillRect(rect(), Qt::black);

    // 绘制蛇头
    painter.setBrush(Qt::red);
    painter.drawEllipse(head.x() * 20, head.y() * 20, 20, 20);

    // 绘制蛇身
    painter.setBrush(Qt::blue);
    for (int i = 0; i < body.size(); i++) {
        painter.drawEllipse(body.at(i).x() * 20, body.at(i).y() * 20, 20, 20);
    }

    // 绘制食物
    painter.setBrush(Qt::green);
    painter.drawEllipse(food.x() * 20, food.y() * 20, 20, 20);
}

void Snake::keyPressEvent(QKeyEvent *event)
{
    switch (event->key()) {
    case Qt::Key_Up:
        if (direction != Direction::Down)
            direction = Direction::Up;
        break;
    case Qt::Key_Down:
        if (direction != Direction::Up)
            direction = Direction::Down;
        break;
    case Qt::Key_Left:
        if (direction != Direction::Right)
            direction = Direction::Left;
        break;
    case Qt::Key_Right:
        if (direction != Direction::Left)
            direction = Direction::Right;
        break;
    default:
        QMainWindow::keyPressEvent(event);
        break;
    }
}

void Snake::timerEvent(QTimerEvent *event)
{
    // 移动蛇身
    for (int i = body.size() - 1; i > 0; i--) {
        body[i] = body[i - 1];
    }
    body[0] = head;

    // 移动蛇头
    switch (direction) {
    case Direction::Up:
        head.setY(head.y() - 1);
        break;
    case Direction::Down:
        head.setY(head.y() + 1);
        break;
    case Direction::Left:
        head.setX(head.x() - 1);
        break;
    case Direction::Right:
        head.setX(head.x() + 1);
        break;
    }

    // 检查是否吃到食物
    if (head == food) {
        body.append(body.last());
        generateFood();
    }

    // 检查是否碰撞
    if (checkCollision()) {
        killTimer(timerId);
    }

    update();
}

void Snake::generateFood()
{
    int x = qrand() % (width() / 20);
    int y = qrand() % (height() / 20);
    food = QPoint(x, y);
}

bool Snake::checkCollision()
{
    // 检查是否碰到边界
    if (head.x() < 0 || head.x() >= width() / 20 ||
        head.y() < 0 || head.y() >= height() / 20) {
        return true;
    }

    // 检查是否碰到身体
    for (int i = 1; i < body.size(); i++) {
        if (head == body.at(i))
            return true;
    }

    return false;
}