Java代码鉴赏-(双人版贪吃蛇程序)

package game;

/*这是一个双人贪吃蛇游戏

*玩家一 A S D W 控制方向

*玩家二 上下左右 控制方向

*当某玩家无路可走的时候既输

*/

import java.awt.*;

import javax.swing.*;

import java.awt.event.*;

public class HsGame extends JFrame {

    HsGame(String str) {

        // 设置主面版

        this.setTitle(str);

        this.setSize(910, 630);

        this.setLocation(50, 50);

        MyPanel mp = new MyPanel();

        this.add(mp);

        this.addKeyListener(mp);

        new Thread(mp).start();

    }

    // 主线程

    public static void main(String[] args) {

        HsGame m = new HsGame("贪吃蛇竞技版");

        m.setVisible(true);

    }

}

class MyPanel extends JPanel implements Runnable, KeyListener {

    int[][] s1 = new int[180][120];

    int[][] s2 = new int[180][120];

    int x1 = 40;

    int y1 = 60;

    int x2 = 140;

    int y2 = 60;

    // 设置线程休眠时间

    int sleep = 50;

    // 设置初始方向

    int fangxiang1 = 2;

    int fangxiang2 = 0;

    // 构造函数

    MyPanel() {

        // 初始化界面

        for (int ix = 0; ix < 180; ix++) {

            for (int iy = 0; iy < 120; iy++) {

                s1[ix][iy] = 0;

                s2[ix][iy] = 0;

            }

        }

        // 设置边界

        // 上下边界

        for (int ix = 0; ix < 180; ix++) {

            s1[ix][0] = 1;

            s1[ix][119] = 1;

            s2[ix][0] = 1;

            s2[ix][119] = 1;

        }

        // 左右边界

        for (int iy = 0; iy < 120; iy++) {

            s1[0][iy] = 1;

            s1[179][iy] = 1;

            s2[0][iy] = 1;

            s2[179][iy] = 1;

        }

    }

    // 画板

    public void paint(Graphics g) {

        // 显示玩家一

        g.setColor(Color.red);

        for (int ix = 0; ix < 180; ix++) {

            for (int iy = 0; iy < 120; iy++) {

                if (s1[ix][iy] == 1) {

                    g.fillRect(ix * 5, iy * 5, 5, 5);

                }

            }

        }

        // 显示玩家二

        g.setColor(Color.blue);

        for (int ix = 0; ix < 180; ix++) {

            for (int iy = 0; iy < 120; iy++) {

                if (s2[ix][iy] == 1) {

                    g.fillRect(ix * 5, iy * 5, 5, 5);

                }

            }

        }

        // 画出边界

        g.setColor(Color.black);

        for (int i = 0; i < 180; i++) {

            g.fillRect(i * 5, 0, 5, 5);

            g.fillRect(i * 5, 119 * 5, 5, 5);

        }

        for (int i = 0; i < 120; i++) {

            g.fillRect(0, i * 5, 5, 5);

            g.fillRect(179 * 5, i * 5, 5, 5);

        }

    }

    public void run() {

        while (true) {

            switch (fangxiang1) {

            case 0:
                x1--;
                break;

            case 1:
                y1--;
                break;

            case 2:
                x1++;
                break;

            case 3:
                y1++;

            }

            switch (fangxiang2) {

            case 0:
                x2--;
                break;

            case 1:
                y2--;
                break;

            case 2:
                x2++;
                break;

            case 3:
                y2++;

            }

            // 判断死活

            if (s1[x1][y1] == 1 || s2[x1][y1] == 1) {

                // 弹出player2胜利对话框

                JOptionPane.showMessageDialog(null,

                "player 2 win!",

                "Game Over !", JOptionPane.ERROR_MESSAGE);

                // 结束游戏

                System.exit(0);

            } else {

                s1[x1][y1] = 1;

            }

            if (s2[x2][y2] == 1 || s1[x2][y2] == 1) {

                // 弹出player1胜利对话框

                JOptionPane.showMessageDialog(null,

                "player 1 win!",

                "Game Over !", JOptionPane.ERROR_MESSAGE);

                // 结束游戏

                System.exit(0);

            } else {

                s2[x2][y2] = 1;

            }

            try {

                Thread.sleep(sleep);

            } catch (Exception e) {

                e.printStackTrace();
            }

            // 重画

            this.repaint();

        }

    }

    public void keyTyped(KeyEvent e) {

    }

    public void keyPressed(KeyEvent e) {

        // 玩家一控制

        if (e.getKeyCode() == 65) {

            if (fangxiang1 != 2) {

                fangxiang1 = 0;

                System.out.println("player 1 left");

            }

        }

        if (e.getKeyCode() == 87) {

            if (fangxiang1 != 3) {

                fangxiang1 = 1;

                System.out.println("player 1 up");

            }

        }

        if (e.getKeyCode() == 68) {

            if (fangxiang1 != 0) {

                fangxiang1 = 2;

                System.out.println("player 1 right");

            }

        }

        if (e.getKeyCode() == 83) {

            if (fangxiang1 != 1) {

                fangxiang1 = 3;

                System.out.println("player 1 down");

            }

        }

        // 玩家二控制

        if (e.getKeyCode() == 37) {

            if (fangxiang2 != 2) {

                fangxiang2 = 0;

                System.out.println("player 2 left");

            }

        }

        if (e.getKeyCode() == 38) {

            if (fangxiang2 != 3) {

                fangxiang2 = 1;

                System.out.println("player 2 up");

            }

        }

        if (e.getKeyCode() == 39) {

            if (fangxiang2 != 0) {

                fangxiang2 = 2;

                System.out.println("player 2 right");

            }

        }

        if (e.getKeyCode() == 40) {

            if (fangxiang2 != 1) {

                fangxiang2 = 3;

                System.out.println("player 2 down");

            }

        }

    }

    public void keyReleased(KeyEvent e) {

    }

}