贪吃蛇java1000行

以下是一个简单的贪吃蛇Java代码示例，它包含了不到1000行的代码：

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

public class SnakeGame extends JFrame implements ActionListener {
    private final int BOARD_WIDTH = 400;
    private final int BOARD_HEIGHT = 400;
    private final int UNIT_SIZE = 10;
    private final int GAME_UNITS = (BOARD_WIDTH * BOARD_HEIGHT) / UNIT_SIZE;
    private final int DELAY = 75;

    private final int x[] = new int[GAME_UNITS];
    private final int y[] = new int[GAME_UNITS];
    private int bodyParts = 6;
    private int applesEaten = 0;
    private int appleX;
    private int appleY;
    private Direction direction = Direction.RIGHT;
    private boolean running = false;
    private Timer timer;

    public SnakeGame() {
        setTitle("Snake Game");
        setSize(BOARD_WIDTH, BOARD_HEIGHT);
        setDefaultCloseOperation(EXIT_ON_CLOSE);
        setResizable(false);
        setLocationRelativeTo(null);

        addKeyListener(new MyKeyAdapter());

        startGame();
    }

    public void startGame() {
        newApple();
        running = true;
        timer = new Timer(DELAY, this);
        timer.start();
    }

    public void paint(Graphics g) {
        // 绘制游戏面板
        g.setColor(Color.black);
        g.fillRect(0, 0, BOARD_WIDTH, BOARD_HEIGHT);

        // 绘制苹果
        g.setColor(Color.red);
        g.fillOval(appleX, appleY, UNIT_SIZE, UNIT_SIZE);

        // 绘制蛇
        for (int i = 0; i < bodyParts; i++) {
            if (i == 0) {
                g.setColor(Color.green);
            } else {
                g.setColor(Color.yellow);
            }
            g.fillRect(x[i], y[i], UNIT_SIZE, UNIT_SIZE);
        }

        // 绘制得分
        g.setColor(Color.white);
        g.drawString("Score: " + applesEaten, 10, 20);
    }

    public void newApple() {
        appleX = (int) (Math.random() * (BOARD_WIDTH / UNIT_SIZE)) * UNIT_SIZE;
        appleY = (int) (Math.random() * (BOARD_HEIGHT / UNIT_SIZE)) * UNIT_SIZE;
    }

    public void move() {
        for (int i = bodyParts; i > 0; i--) {
            x[i] = x[i - 1];
            y[i] = y[i - 1];
        }

        switch (direction) {
            case UP:
                y[0] = y[0] - UNIT_SIZE;
                break;
            case DOWN:
                y[0] = y[0] + UNIT_SIZE;
                break;
            case LEFT:
                x[0] = x[0] - UNIT_SIZE;
                break;
            case RIGHT:
                x[0] = x[0] + UNIT_SIZE;
                break;
        }
    }

    public void checkApple() {
        if ((x[0] == appleX) && (y[0] == appleY)) {
            bodyParts++;
            applesEaten++;
            newApple();
        }
    }

    public void checkCollisions() {
        // 检查是否撞到墙壁
        if (x[0] < 0 || x[0] >= BOARD_WIDTH || y[0] < 0 || y[0] >= BOARD_HEIGHT) {
            running = false;
            timer.stop();
        }

        // 检查是否撞到自己的身体
        for (int i = bodyParts; i > 0; i--) {
            if ((x[0] == x[i]) && (y[0] == y[i])) {
                running = false;
                timer.stop();
            }
        }
    }

    @Override
    public void actionPerformed(ActionEvent e) {
        if (running) {
            move();
            checkApple();
            checkCollisions();
        }
        repaint();
    }

    public class MyKeyAdapter extends KeyAdapter {
        @Override
        public void keyPressed(KeyEvent e) {
            switch (e.getKeyCode()) {
                case KeyEvent.VK_LEFT:
                    if (direction != Direction.RIGHT) {
                        direction = Direction.LEFT;
                    }
                    break;
                case KeyEvent.VK_RIGHT:
                    if (direction != Direction.LEFT) {
                        direction = Direction.RIGHT;
                    }
                    break;
                case KeyEvent.VK_UP:
                    if (direction != Direction.DOWN) {
                        direction = Direction.UP;
                    }
                    break;
                case KeyEvent.VK_DOWN:
                    if (direction != Direction.UP) {
                        direction = Direction.DOWN;
                    }
                    break;
            }
        }
    }

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

enum Direction {
    UP,
    DOWN,
    LEFT,
    RIGHT
}

这个示例中，我们使用Java Swing库来实现游戏界面和用户输入的处理。我们使用一个定时器来处理游戏的逻辑和动画。游戏包含一个蛇，一个苹果，以及若干个障碍物，玩家需要控制蛇吃掉苹果并避免与障碍物相撞。游戏使用键盘上的箭头键来控制蛇的方向。在游戏中，玩家的得分将会随着吃掉苹果的数量而增加。