java赛车小游戏代码_java版赛车小游戏源代码

以下是一个简单的 Java 赛车小游戏的源代码：

import java.awt.*;
import java.awt.event.*;
import javax.swing.*;

public class RacingGame extends JFrame implements ActionListener, KeyListener {

    private static final long serialVersionUID = 1L;

    private JPanel panel;
    private Timer timer;
    private int carX, carY, carSpeed, roadX, roadY;
    private boolean leftPressed, rightPressed, upPressed, downPressed;

    public RacingGame() {
        setTitle("Racing Game");
        setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        setSize(600, 600);
        setLocationRelativeTo(null);
        setResizable(false);

        panel = new JPanel() {
            private static final long serialVersionUID = 1L;

            public void paintComponent(Graphics g) {
                super.paintComponent(g);
                // 绘制背景
                g.setColor(Color.BLACK);
                g.fillRect(0, 0, getWidth(), getHeight());
                g.setColor(Color.WHITE);
                // 绘制道路
                g.fillRect(roadX, roadY, 100, getHeight());
                // 绘制赛车
                g.setColor(Color.RED);
                g.fillRect(carX, carY, 20, 40);
            }
        };
        add(panel);

        timer = new Timer(10, this);
        timer.start();

        addKeyListener(this);
        setFocusable(true);
        setFocusTraversalKeysEnabled(false);

        carX = 290;
        carY = 500;
        carSpeed = 0;
        roadX = 250;
        roadY = 0;
    }

    public void actionPerformed(ActionEvent e) {
        // 移动赛车
        carX += carSpeed;
        if (carX < roadX + 20) {
            carX = roadX + 20;
        }
        if (carX > roadX + 60) {
            carX = roadX + 60;
        }
        // 移动道路
        roadY += 5;
        if (roadY > getHeight()) {
            roadY = -getHeight();
        }
        panel.repaint();
    }

    public void keyPressed(KeyEvent e) {
        if (e.getKeyCode() == KeyEvent.VK_LEFT) {
            leftPressed = true;
            carSpeed = -5;
        }
        if (e.getKeyCode() == KeyEvent.VK_RIGHT) {
            rightPressed = true;
            carSpeed = 5;
        }
        if (e.getKeyCode() == KeyEvent.VK_UP) {
            upPressed = true;
            carSpeed = -10;
        }
        if (e.getKeyCode() == KeyEvent.VK_DOWN) {
            downPressed = true;
            carSpeed = 10;
        }
    }

    public void keyReleased(KeyEvent e) {
        if (e.getKeyCode() == KeyEvent.VK_LEFT) {
            leftPressed = false;
            if (rightPressed) {
                carSpeed = 5;
            } else {
                carSpeed = 0;
            }
        }
        if (e.getKeyCode() == KeyEvent.VK_RIGHT) {
            rightPressed = false;
            if (leftPressed) {
                carSpeed = -5;
            } else {
                carSpeed = 0;
            }
        }
        if (e.getKeyCode() == KeyEvent.VK_UP) {
            upPressed = false;
            if (downPressed) {
                carSpeed = 10;
            } else {
                carSpeed = 0;
            }
        }
        if (e.getKeyCode() == KeyEvent.VK_DOWN) {
            downPressed = false;
            if (upPressed) {
                carSpeed = -10;
            } else {
                carSpeed = 0;
            }
        }
    }

    public void keyTyped(KeyEvent e) {}

    public static void main(String[] args) {
        RacingGame game = new RacingGame();
        game.setVisible(true);
    }

}

这个小游戏使用了 Java Swing 库来创建 GUI 界面，实现了一个赛车在道路上运动的效果。玩家可以通过方向键控制赛车的移动，游戏会不断地更新赛车和道路的位置来模拟运动的效果。