双人贪吃蛇java 代码_java 双人贪吃蛇

以下是一个简单的Java双人贪吃蛇游戏的代码示例：

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

public class SnakeGame extends JFrame {

    private final int B_WIDTH = 300;
    private final int B_HEIGHT = 300;
    private final int DOT_SIZE = 10;
    private final int ALL_DOTS = 900;
    private final int RAND_POS = 29;
    private int DELAY = 140;

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

    private int player1Score = 0;
    private int player2Score = 0;
    private boolean player1Turn = true;

    public SnakeGame() {

        initGame();
    }

    private void initGame() {

        addKeyListener(new TAdapter());

        setBackground(Color.black);
        setFocusable(true);

        setPreferredSize(new Dimension(B_WIDTH, B_HEIGHT));
        loadImages();
        initGameBoard();

    }

    private void loadImages() {

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

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

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

    private void initGameBoard() {

        dots = 3;

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

        locateApple();

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

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

        doDrawing(g);
    }

    private void doDrawing(Graphics 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!";
        String msg2 = "Player 1 Score: " + player1Score + " Player 2 Score: " + player2Score;
        Font small = new Font("Helvetica", Font.BOLD, 14);
        FontMetrics metr = getFontMetrics(small);

        g.setColor(Color.white);
        g.setFont(small);
        g.drawString(msg, (B_WIDTH - metr.stringWidth(msg)) / 2, B_HEIGHT / 2);
        g.drawString(msg2, (B_WIDTH - metr.stringWidth(msg2)) / 2, (B_HEIGHT / 2) + 20);
    }

    private void checkApple() {

        if ((x[0] == apple_x) && (y[0] == apple_y)) {

            dots++;
            locateApple();
            if (player1Turn) {
                player1Score++;
            } else {
                player2Score++;
            }
        }
    }

    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] >= B_HEIGHT) {
            inGame = false;
        }

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

        if (x[0] >= B_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));
    }

    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;
            }
        }
    }

    private class GameCycle implements ActionListener {

        @Override
        public void actionPerformed(ActionEvent e) {

            if (inGame) {

                checkApple();
                checkCollision();
                move();

                if (player1Turn) {
                    player1Turn = false;
                } else {
                    player1Turn = true;
                }

            }

            repaint();
        }
    }

    public static void main(String[] args) {

        EventQueue.invokeLater(() -> {

            JFrame ex = new SnakeGame();
            ex.setVisible(true);
        });
    }
}

这个示例代码使用了Java Swing库来创建游戏窗口和图形界面，同时实现了基本的游戏逻辑和双人模式。你可以根据自己的需求对代码进行修改和扩展。