java贪吃蛇代码eclipse

以下是一个简单的Java贪吃蛇游戏的代码，可以在Eclipse中运行。

SnakeGame.java

import java.awt.Color;
import java.awt.Graphics;
import java.awt.Point;
import java.awt.event.KeyEvent;
import java.awt.event.KeyListener;
import java.util.ArrayList;
import java.util.Random;

import javax.swing.JFrame;
import javax.swing.JPanel;

public class SnakeGame extends JPanel implements Runnable, KeyListener {
    private static final long serialVersionUID = 1L;
    private static final int WIDTH = 500;
    private static final int HEIGHT = 500;
    private Thread thread;
    private boolean running;
    private boolean right = true, left = false, up = false, down = false;
    private BodyPart b;
    private ArrayList<BodyPart> snake;
    private Apple apple;
    private ArrayList<Apple> apples;
    private Random r;

    public SnakeGame() {
        setFocusable(true);
        addKeyListener(this);
        setPreferredSize(new Dimension(WIDTH, HEIGHT));
        r = new Random();
        snake = new ArrayList<BodyPart>();
        apples = new ArrayList<Apple>();
        start();
    }

    public void start() {
        running = true;
        thread = new Thread(this);
        thread.start();
    }

    public void stop() {
        running = false;
        try {
            thread.join();
        } catch (InterruptedException e) {
            e.printStackTrace();
        }
    }

    public void tick() {
        if (snake.size() == 0) {
            b = new BodyPart(0, 0, 10);
            snake.add(b);
        }
        if (apples.size() == 0) {
            int x = r.nextInt(49);
            int y = r.nextInt(49);
            apple = new Apple(x, y, 10);
            apples.add(apple);
        }
        for (int i = 0; i < apples.size(); i++) {
            if (snake.get(0).getX() == apples.get(i).getX() && snake.get(0).getY() == apples.get(i).getY()) {
                snake.add(new BodyPart(snake.get(snake.size() - 1).getX(), snake.get(snake.size() - 1).getY(), 10));
                apples.remove(i);
            }
        }
        for (int i = 1; i < snake.size(); i++) {
            if (snake.get(0).getX() == snake.get(i).getX() && snake.get(0).getY() == snake.get(i).getY()) {
                stop();
            }
        }
        if (snake.get(0).getX() < 0) {
            stop();
        }
        if (snake.get(0).getX() > 49) {
            stop();
        }
        if (snake.get(0).getY() < 0) {
            stop();
        }
        if (snake.get(0).getY() > 49) {
            stop();
        }
        if (!running) {
            return;
        }
        for (int i = snake.size() - 1; i > 0; i--) {
            snake.get(i).setX(snake.get(i - 1).getX());
            snake.get(i).setY(snake.get(i - 1).getY());
        }
        if (right) {
            snake.get(0).setX(snake.get(0).getX() + 10);
        }
        if (left) {
            snake.get(0).setX(snake.get(0).getX() - 10);
        }
        if (up) {
            snake.get(0).setY(snake.get(0).getY() - 10);
        }
        if (down) {
            snake.get(0).setY(snake.get(0).getY() + 10);
        }
    }

    public void paint(Graphics g) {
        g.clearRect(0, 0, WIDTH, HEIGHT);
        g.setColor(Color.BLACK);
        for (int i = 0; i < WIDTH / 10; i++) {
            g.drawLine(i * 10, 0, i * 10, HEIGHT);
        }
        for (int i = 0; i < HEIGHT / 10; i++) {
            g.drawLine(0, i * 10, WIDTH, i * 10);
        }
        for (int i = 0; i < snake.size(); i++) {
            snake.get(i).draw(g);
        }
        for (int i = 0; i < apples.size(); i++) {
            apples.get(i).draw(g);
        }
    }

    @Override
    public void run() {
        while (running) {
            tick();
            repaint();
        }
    }

    @Override
    public void keyPressed(KeyEvent e) {
        int key = e.getKeyCode();
        if (key == KeyEvent.VK_RIGHT && !left) {
            up = false;
            down = false;
            right = true;
        }
        if (key == KeyEvent.VK_LEFT && !right) {
            up = false;
            down = false;
            left = true;
        }
        if (key == KeyEvent.VK_UP && !down) {
            left = false;
            right = false;
            up = true;
        }
        if (key == KeyEvent.VK_DOWN && !up) {
            left = false;
            right = false;
            down = true;
        }
    }

    @Override
    public void keyReleased(KeyEvent arg0) {

    }

    @Override
    public void keyTyped(KeyEvent arg0) {

    }

    public static void main(String[] args) {
        JFrame frame = new JFrame("Snake Game");
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        frame.setResizable(false);
        frame.add(new SnakeGame());
        frame.pack();
        frame.setLocationRelativeTo(null);
        frame.setVisible(true);
    }

}

BodyPart.java

import java.awt.Color;
import java.awt.Graphics;

public class BodyPart {
private int x;
private int y;
private int width;
private int height;

public BodyPart(int x, int y, int size) {
this.x = x;
this.y = y;
width = size;
height = size;
}

public void draw(Graphics g) {
g.setColor(Color.GREEN);
g.fillRect(x * width, y * height, width, height);
}

public int getX() {
return x;
}

public void setX(int x) {
this.x = x;
}

public int getY() {
return y;
}

public void setY(int y) {
this.y = y;
}
}

Apple.java

import java.awt.Color;
import java.awt.Graphics;

public class Apple {
    private int x;
    private int y;
    private int size;

    public Apple(int x, int y, int size) {
        this.x = x;
        this.y = y;
        this.size = size;
    }

    public void draw(Graphics g) {
        g.setColor(Color.RED);
        g.fillRect(x * size, y * size, size, size);
    }

    public int getX() {
        return x;
    }

    public void setX(int x) {
        this.x = x;
    }

    public int getY() {
        return y;
    }

    public void setY(int y) {
        this.y = y;
    }
}

这是一个基本的贪吃蛇游戏，你可以在Eclipse中运行它。