JAVA课程设计贪吃蛇代码

好的，以下是一个简单的JAVA贪吃蛇游戏的代码示例：

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

public class SnakeGame extends JFrame implements ActionListener {
    private static final long serialVersionUID = 6678292058307426314L;
    private JPanel gamePanel;
    private JPanel scorePanel;
    private JLabel scoreLabel;
    private Timer timer;
    private int score = 0;
    private int[][] snake = new int[100][2];
    private int foodX, foodY;
    private int length = 3;
    private int direction = KeyEvent.VK_RIGHT;

    public SnakeGame() {
        // 设置游戏界面
        setTitle("贪吃蛇游戏");
        setSize(new Dimension(400, 400));
        setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

        // 设置游戏面板
        gamePanel = new JPanel();
        gamePanel.setBackground(Color.WHITE);
        gamePanel.setLayout(null);
        gamePanel.setPreferredSize(new Dimension(300, 300));
        add(gamePanel, BorderLayout.CENTER);

        // 设置分数面板
        scorePanel = new JPanel();
        scorePanel.setLayout(new FlowLayout());
        scoreLabel = new JLabel("得分：0");
        scorePanel.add(scoreLabel);
        add(scorePanel, BorderLayout.SOUTH);

        // 初始化蛇的位置
        snake[0][0] = 100;
        snake[0][1] = 100;
        snake[1][0] = 80;
        snake[1][1] = 100;
        snake[2][0] = 60;
        snake[2][1] = 100;

        // 随机生成食物的位置
        generateFood();

        // 设置定时器
        timer = new Timer(100, this);
        timer.start();

        // 添加键盘监听器，控制方向
        addKeyListener(new KeyAdapter() {
            public void keyPressed(KeyEvent e) {
                int key = e.getKeyCode();
                if (key == KeyEvent.VK_LEFT && direction != KeyEvent.VK_RIGHT) {
                    direction = KeyEvent.VK_LEFT;
                } else if (key == KeyEvent.VK_RIGHT && direction != KeyEvent.VK_LEFT) {
                    direction = KeyEvent.VK_RIGHT;
                } else if (key == KeyEvent.VK_UP && direction != KeyEvent.VK_DOWN) {
                    direction = KeyEvent.VK_UP;
                } else if (key == KeyEvent.VK_DOWN && direction != KeyEvent.VK_UP) {
                    direction = KeyEvent.VK_DOWN;
                }
            }
        });

        // 显示游戏界面
        setVisible(true);
    }

    public void actionPerformed(ActionEvent e) {
        // 移动蛇的身体
        for (int i = length - 1; i > 0; i--) {
            snake[i][0] = snake[i - 1][0];
            snake[i][1] = snake[i - 1][1];
        }

        // 根据方向移动蛇头
        if (direction == KeyEvent.VK_LEFT) {
            snake[0][0] -= 20;
        } else if (direction == KeyEvent.VK_RIGHT) {
            snake[0][0] += 20;
        } else if (direction == KeyEvent.VK_UP) {
            snake[0][1] -= 20;
        } else if (direction == KeyEvent.VK_DOWN) {
            snake[0][1] += 20;
        }

        // 判断蛇是否吃到食物
        if (snake[0][0] == foodX && snake[0][1] == foodY) {
            score += 10;
            scoreLabel.setText("得分：" + score);
            length++;
            generateFood();
        }

        // 判断蛇是否撞墙或自咬
        for (int i = 1; i < length; i++) {
            if (snake[0][0] == snake[i][0] && snake[0][1] == snake[i][1]) {
                gameOver();
            }
        }
        if (snake[0][0] < 0 || snake[0][0] >= 300 || snake[0][1] < 0 || snake[0][1] >= 300) {
            gameOver();
        }

        // 重新绘制游戏面板
        gamePanel.repaint();
    }

    private void generateFood() {
        Random random = new Random();
        foodX = random.nextInt(15) * 20;
        foodY = random.nextInt(15) * 20;
    }

    private void gameOver() {
        JOptionPane.showMessageDialog(this, "游戏结束，得分：" + score);
        timer.stop();
    }

    public void paint(Graphics g) {
        super.paint(g);

        // 绘制食物
        g.setColor(Color.RED);
        g.fillOval(foodX, foodY, 20, 20);

        // 绘制蛇
        g.setColor(Color.BLACK);
        for (int i = 0; i < length; i++) {
            g.fillRect(snake[i][0], snake[i][1], 20, 20);
        }
    }

    public static void main(String[] args) {
        new SnakeGame();
    }
}

代码中使用了JFrame、JPanel、JLabel、Timer等Swing组件和KeyEvent、KeyAdapter等AWT事件，实现了一个简单的贪吃蛇游戏。其中，蛇的运动、食物的生成、得分的计算等逻辑由 actionPerformed 方法实现，游戏界面的绘制由 paint 方法实现。在 main 方法中创建了一个 SnakeGame 对象，启动了游戏。