贪吃蛇项目(基于qt/c++实现的练手小demo)

#include "mainwindow.h" #include "ui_mainwindow.h" #include <QGraphicsScene> #include <QKeyEvent> MainWindow::MainWindow(QWidget *parent) : QMainWindow(parent) , ui(new Ui::MainWindow) { ui->setupUi(this); // 创建游戏场景 scene = new QGraphicsScene(this); ui->graphicsView->setScene(scene); scene->setSceneRect(0, 0, 400, 400); // 初始化蛇的位置和大小 snake = new Snake(); snake->setPos(200, 200); scene->addItem(snake); // 将焦点设置为窗口，以便接收按键事件 setFocus(); } void MainWindow::keyPressEvent(QKeyEvent *event) { // 处理按键事件 switch (event->key()) { case Qt::Key_Left: snake->setDirection(Snake::Direction::Left); break; case Qt::Key_Right: snake->setDirection(Snake::Direction::Right); break; case Qt::Key_Up: snake->setDirection(Snake::Direction::Up); break; case Qt::Key_Down: snake->setDirection(Snake::Direction::Down); break; } } MainWindow::~MainWindow() { delete ui; }