我我想用Java写贪吃蛇

好的，我可以回答你的问题。要用Java编写贪吃蛇游戏，你可以先了解Java的图形用户界面(GUI)编程。Java提供了许多GUI库，例如Swing、JavaFX等。你可以选择其中一个库来编写游戏。在编写过程中，你需要使用Java中的面向对象编程思想，例如类、对象、继承、封装等概念。此外，你还需要掌握Java的事件处理机制，用来处理用户的操作事件。最后，你需要编写游戏逻辑，包括贪吃蛇的移动、食物的生成、碰撞检测等。希望这些提示可以帮助你完成贪吃蛇游戏的编写。

相关问题

用JAVA帮我写个贪吃蛇

好的，以下是一个简单的Java贪吃蛇实现，代码中有注释说明每一步的作用。

import java.awt.Color;
import java.awt.Dimension;
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.List;
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;

    public static final int WIDTH = 500;
    public static final int HEIGHT = 500;

    private Thread thread;
    private boolean running;

    private Node head;
    private List<Node> snake;

    private Node food;

    private Random r;

    private int xDir, yDir;

    private int size;
    private int ticks;

    public SnakeGame() {
        setPreferredSize(new Dimension(WIDTH, HEIGHT));
        setFocusable(true);
        addKeyListener(this);

        snake = new ArrayList<Node>();

        r = new Random();

        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) {
            head = new Node(0, 0);
            snake.add(head);
        }

        if (food == null) {
            int x = r.nextInt(WIDTH / Node.SIZE) * Node.SIZE;
            int y = r.nextInt(HEIGHT / Node.SIZE) * Node.SIZE;

            food = new Node(x, y);
        }

        if (ticks % 2 == 0) {
            Node tail = null;

            tail = snake.remove(snake.size() - 1);

            tail.setX(head.getX() + xDir * Node.SIZE);
            tail.setY(head.getY() + yDir * Node.SIZE);

            head = tail;

            snake.add(0, head);

            for (int i = 1; i < snake.size(); i++) {
                if (head.getX() == snake.get(i).getX() && head.getY() == snake.get(i).getY()) {
                    stop();
                }
            }

            if (head.getX() < 0) {
                head.setX(WIDTH);
            }
            if (head.getX() > WIDTH) {
                head.setX(0);
            }
            if (head.getY() < 0) {
                head.setY(HEIGHT);
            }
            if (head.getY() > HEIGHT) {
                head.setY(0);
            }

            if (head.getX() == food.getX() && head.getY() == food.getY()) {
                size++;

                food = null;
            }
        }

        ticks++;
    }

    public void paint(Graphics g) {
        g.clearRect(0, 0, WIDTH, HEIGHT);

        g.setColor(Color.BLACK);
        g.fillRect(0, 0, WIDTH, HEIGHT);

        if (food != null) {
            food.draw(g);
        }

        for (Node n : snake) {
            n.draw(g);
        }

        g.setColor(Color.WHITE);
        g.drawString("Score: " + size, 10, 20);
    }

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

    public void keyPressed(KeyEvent e) {
        int key = e.getKeyCode();

        if (key == KeyEvent.VK_UP && yDir != 1) {
            xDir = 0;
            yDir = -1;
        }
        if (key == KeyEvent.VK_DOWN && yDir != -1) {
            xDir = 0;
            yDir = 1;
        }
        if (key == KeyEvent.VK_LEFT && xDir != 1) {
            xDir = -1;
            yDir = 0;
        }
        if (key == KeyEvent.VK_RIGHT && xDir != -1) {
            xDir = 1;
            yDir = 0;
        }
    }

    public void keyReleased(KeyEvent e) {

    }

    public void keyTyped(KeyEvent e) {

    }

    public static void main(String[] args) {
        JFrame frame = new JFrame("Snake");
        SnakeGame game = new SnakeGame();

        frame.add(game);
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        frame.setResizable(false);
        frame.pack();
        frame.setLocationRelativeTo(null);
        frame.setVisible(true);

        game.start();
    }
}

class Node {
    public static final int SIZE = 10;

    private int x, y;

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

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

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

    public int getX() {
        return x;
    }

    public int getY() {
        return y;
    }

    public void draw(Graphics g) {
        g.setColor(Color.WHITE);
        g.fillRect(x, y, SIZE, SIZE);
    }
}

运行该程序，你就可以玩一局贪吃蛇了。

帮我用Java写一套贪吃蛇代码

好的，以下是一份简单的Java贪吃蛇代码：

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

public class SnakeGame extends JFrame implements ActionListener {
    private final int WIDTH = 300;
    private final int HEIGHT = 300;
    private final int DOT_SIZE = 10;
    private final int ALL_DOTS = 900;
    private final int RAND_POS = 29;
    private final int DELAY = 140;

    private int x[] = new int[ALL_DOTS];
    private int y[] = new int[ALL_DOTS];

    private int dots;
    private int apple_x;
    private int apple_y;

    private boolean leftDirection = false;
    private boolean rightDirection = true;
    private boolean upDirection = false;
    private boolean downDirection = false;
    private boolean inGame = true;

    private Timer timer;
    private Image ball;
    private Image apple;
    private Image head;

    public SnakeGame() {
        setTitle("Snake");
        setDefaultCloseOperation(EXIT_ON_CLOSE);
        setSize(WIDTH, HEIGHT);
        setResizable(false);
        setLocationRelativeTo(null);

        ImageIcon iid = new ImageIcon(getClass().getResource("dot.png"));
        ball = iid.getImage();

        ImageIcon iia = new ImageIcon(getClass().getResource("apple.png"));
        apple = iia.getImage();

        ImageIcon iih = new ImageIcon(getClass().getResource("head.png"));
        head = iih.getImage();

        addKeyListener(new TAdapter());

        initGame();
    }

    private void initGame() {
        dots = 3;

        for (int z = 0; z < dots; z++) {
            x[z] = 50 - z * 10;
            y[z] = 50;
        }

        locateApple();

        timer = new Timer(DELAY, this);
        timer.start();
    }

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

        if (inGame) {
            g.drawImage(apple, apple_x, apple_y, this);

            for (int z = 0; z < dots; z++) {
                if (z == 0) {
                    g.drawImage(head, x[z], y[z], this);
                } else {
                    g.drawImage(ball, x[z], y[z], this);
                }
            }

            Toolkit.getDefaultToolkit().sync();
        } else {
            gameOver(g);
        }
    }

    private void gameOver(Graphics g) {
        String msg = "Game Over";
        Font small = new Font("Helvetica", Font.BOLD, 14);
        FontMetrics metr = getFontMetrics(small);

        g.setColor(Color.white);
        g.setFont(small);
        g.drawString(msg, (WIDTH - metr.stringWidth(msg)) / 2, HEIGHT / 2);
    }

    private void checkApple() {
        if ((x[0] == apple_x) && (y[0] == apple_y)) {
            dots++;
            locateApple();
        }
    }

    private void move() {
        for (int z = dots; z > 0; z--) {
            x[z] = x[(z - 1)];
            y[z] = y[(z - 1)];
        }

        if (leftDirection) {
            x[0] -= DOT_SIZE;
        }

        if (rightDirection) {
            x[0] += DOT_SIZE;
        }

        if (upDirection) {
            y[0] -= DOT_SIZE;
        }

        if (downDirection) {
            y[0] += DOT_SIZE;
        }
    }

    private void checkCollision() {
        for (int z = dots; z > 0; z--) {
            if ((z > 4) && (x[0] == x[z]) && (y[0] == y[z])) {
                inGame = false;
            }
        }

        if (y[0] >= HEIGHT) {
            inGame = false;
        }

        if (y[0] < 0) {
            inGame = false;
        }

        if (x[0] >= WIDTH) {
            inGame = false;
        }

        if (x[0] < 0) {
            inGame = false;
        }

        if (!inGame) {
            timer.stop();
        }
    }

    private void locateApple() {
        int r = (int) (Math.random() * RAND_POS);
        apple_x = ((r * DOT_SIZE));

        r = (int) (Math.random() * RAND_POS);
        apple_y = ((r * DOT_SIZE));
    }

    @Override
    public void actionPerformed(ActionEvent e) {
        if (inGame) {
            checkApple();
            checkCollision();
            move();
        }

        repaint();
    }

    private class TAdapter extends KeyAdapter {
        @Override
        public void keyPressed(KeyEvent e) {
            int key = e.getKeyCode();

            if ((key == KeyEvent.VK_LEFT) && (!rightDirection)) {
                leftDirection = true;
                upDirection = false;
                downDirection = false;
            }

            if ((key == KeyEvent.VK_RIGHT) && (!leftDirection)) {
                rightDirection = true;
                upDirection = false;
                downDirection = false;
            }

            if ((key == KeyEvent.VK_UP) && (!downDirection)) {
                upDirection = true;
                rightDirection = false;
                leftDirection = false;
            }

            if ((key == KeyEvent.VK_DOWN) && (!upDirection)) {
                downDirection = true;
                rightDirection = false;
                leftDirection = false;
            }
        }
    }

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

希望这份代码能够帮到你！