用java实现简易PC版2048

import java.awt.Color;
import java.awt.EventQueue;
import java.awt.BorderLayout;
import java.awt.FlowLayout;
import java.awt.Font;
import java.awt.event.*;
import java.util.Random;

import javax.swing.BorderFactory;
import javax.swing.Icon;
import javax.swing.ImageIcon;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.SwingConstants;
import javax.swing.border.*;
import javax.swing.JTextField;

public class Copy2048 extends JFrame{
    private JPanel scoresPane;
    private JPanel mainPane;
    private JLabel labelMaxScores ;
    private JLabel labelScores;
    private JLabel tips;                    //提示操作标签
    private JTextField textMaxScores;
    private JLabel textScores;
    private JLabel[][] texts;
    private Icon icon2;
    private int times = 16;                    //记录剩余空方块数目
    private int scores = 0;                    //记录分数
    private int l1,l2,l3,l4,l5;                //用于判断游戏是否失败
    Font font = new Font("", Font.BOLD,14);            //设置字体类型和大小
    Font font2 = new Font("", Font.BOLD,30);
    Random random = new Random();

    public static void main(String[] args){
        EventQueue.invokeLater(new Runnable(){
            public void run(){
                try{
                    Copy2048 frame = new Copy2048();
                    frame.setVisible(true);
                //    Thread thread = new Thread(frame);
                //    thread.start();
                }
                catch(Exception e1){
                    e1.printStackTrace();
                }
            }
        });
    }
    /**
     * 构造方法
     */
    public Copy2048(){
        super();
        setResizable(false);            //禁止调整窗体大小
        getContentPane().setLayout(null);    //设置空布局
        setBounds(500, 50, 500, 615);
        setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        setTitle("2048PC版");            //设置窗体标题

        scoresPane = new JPanel();                    //创建分数显示面板
        scoresPane.setBackground(Color.green);        //设置分数显示面板的背景色
        scoresPane.setBounds(20, 20, 460, 40);
        scoresPane.setBorder(BorderFactory.createMatteBorder(2, 2, 2, 2, Color.YELLOW));    //设置得分面板的边框
        getContentPane().add(scoresPane);            //将得分面板添加到窗体
        scoresPane.setLayout(null);                    //设置面板空布局

        labelMaxScores = new JLabel("最高分:");        //最高分标签
        labelMaxScores.setFont(font);                //设置字体类型和大小
        labelMaxScores.setBounds(10, 5, 50, 30);    //设置最懂啊分标签的位置尺寸
        scoresPane.add(labelMaxScores);    //将最高分标签添加到得分容器中

        textMaxScores = new JTextField("暂不可用");            //得分标签
        textMaxScores.setBounds(60, 5, 150, 30);
        textMaxScores.setFont(font);
        textMaxScores.setEditable(false);
        scoresPane.add(textMaxScores);                //将得分标签添加到分数面板中

        labelScores = new JLabel("得    分:");
        labelScores.setFont(font);                    //设置字体类型和大小
        labelScores.setBounds(240, 5, 50, 30);
        scoresPane.add(labelScores);

        textScores = new JLabel(String.valueOf(scores));
        textScores.setFont(font);
        textScores.setBounds(290, 5, 150, 30);
        scoresPane.add(textScores);

        mainPane = new JPanel();                //创建游戏主面板
        mainPane.setBounds(20, 70, 460, 500);    //设置主面板位置尺寸

        this.getContentPane().add(mainPane);
        mainPane.setLayout(null);                //设置空布局

        texts = new  JLabel[4][4];            //创建文本框二维数组
        for(int i = 0; i < 4; i++){                //遍历数组
            for(int j = 0; j < 4; j++){
                texts[i][j] = new JLabel();    //创建标签
                texts[i][j].setFont(font2);
                texts[i][j].setHorizontalAlignment(SwingConstants.CENTER);
                texts[i][j].setText("");
                texts[i][j].setBounds(120 * j, 120 * i, 100, 100);        //设置方块的大小位置
                setColor(i, j, "");
                texts[i][j].setOpaque(true);
                texts[i][j].setBorder(BorderFactory.createMatteBorder(2, 2, 2, 2, Color.green));//设置方块边框颜色
                mainPane.add(texts[i][j]);                            //将创建的文本框放在    

            }
        }

        tips = new JLabel("Tips：使用上、下、左、右键或者W、S、A、D键控制");
        tips.setFont(font);
        tips.setBounds(60,480,400,20);
        mainPane.add(tips);

        textMaxScores.addKeyListener(new KeyAdapter(){                //为最高分标签添加按键监听器
            public void keyPressed(  KeyEvent e){
                 do_label_keyPressed(e);                //调用时间处理方法
            }
        });

        Create2();
        Create2();
    }

    /**
     * 按键输入事件的处理方法
     * @param e
     */
    protected  void do_label_keyPressed(final KeyEvent e){
        int code = e.getKeyCode();    //获取按键代码
        int a ;                        //a 的引入是为了防止连加的情况出现
        String str ;
        String str1;
        int num;
        switch(code){
        case KeyEvent.VK_LEFT:
        case KeyEvent.VK_A:                        //如果按键代码是左方向键或者A键
            for(int i = 0; i < 4; i++){
                a = 5;
                for(int k = 0; k < 3; k++){
                    for(int j = 1; j < 4; j++){                    //遍历16个方块
                        str = texts[i][j].getText();            //获取当前方块标签文本字符
                        str1 = texts[i][j-1].getText();            //获取当前左1方块标签文本字符

                        if(str1.compareTo("") == 0){                //如果左1方块文本为空字符
                            texts[i][j-1].setText(str);                //字符左移
                            setColor(i, j-1,str);
                            texts[i][j].setText("");                //当前方块字符置空
                            setColor(i, j, "");
                        }else if((str.compareTo(str1) == 0) && (j !=a) && (j != a-1)){            //如果当前方块和左1方块文本字符相等
                            num  = Integer.parseInt(str);
                            scores += num;
                            times ++;
                            str = String.valueOf(2 * num);
                            texts[i][j-1].setText(str);        //左1方块文本字符变为两方块之和
                            setColor(i, j-1, str);
                            texts[i][j].setText("");                //当前方块字符置空
                            setColor(i, j, "");
                            a = j;
                        }
                    }
                }
            }
            l1 = 1;                //用于判断游戏是否失败
            Create2();
            break;
        case KeyEvent.VK_RIGHT:
        case KeyEvent.VK_D:
            for(int i = 0; i < 4; i ++){
                a = 5;
                for(int k = 0; k < 3; k++){
                    for(int j = 2; j >= 0; j--){
                        str = texts[i][j].getText();
                        str1 = texts[i][j + 1].getText();

                        if(str1.compareTo("") == 0){
                            texts[i][j + 1].setText(str);
                            setColor(i, j+1, str);
                            texts[i][j].setText("");
                            setColor(i, j, "");
                        }
                        else if(str.compareTo(str1) == 0 && j !=a && j != a+ 1){
                            num  = Integer.parseInt(str);
                            scores += num ;
                            times ++;
                            str = String.valueOf(2 * num);
                            texts[i][j + 1].setText(str);
                            setColor(i, j+1, str);
                            texts[i][j].setText("");
                            setColor(i, j, "");
                            a = j;
                        }
                    }
                }
            }
            l2 = 1;
            Create2();
            break;
        case KeyEvent.VK_UP:
        case KeyEvent.VK_W:
            for(int j = 0; j < 4; j++){
                a = 5;
                for(int k = 0; k < 3; k++){
                    for(int i = 1; i < 4; i++){
                        str = texts[i][j].getText();
                        str1 = texts[i - 1][j].getText();

                        if(str1.compareTo("") == 0){
                            texts[i - 1][j].setText(str);
                            setColor(i-1, j, str);
                            texts[i][j].setText("");
                            setColor(i, j, "");
                        }
                        else if(str.compareTo(str1) == 0 && i != a && i != a -1){
                            num  = Integer.parseInt(str);
                            scores += num ;
                            times ++;
                            str = String.valueOf(2 * num);
                            texts[i - 1][j].setText(str);
                            setColor(i-1, j, str);
                            texts[i][j].setText("");
                            setColor(i, j, "");
                            a = i;
                        }
                    }
                }
            }
            l3 =1;
            Create2();
            break;
        case KeyEvent.VK_DOWN:
        case KeyEvent.VK_S:
            for(int j = 0; j < 4; j ++){
                a = 5;
                for(int k = 0; k < 5; k++){
                    for(int i = 2; i >= 0; i--){
                        str = texts[i][j].getText();
                        str1 = texts[i + 1][j].getText();

                        if(str1.compareTo("") == 0){
                            texts[i + 1][j].setText(str);
                            setColor(i+1, j, str);
                            texts[i][j].setText("");
                            setColor(i, j, "");
                        }
                        else if(str.compareTo(str1) == 0 && i != a && i != a + 1){
                            num  = Integer.parseInt(str);
                            scores += num ;
                            times ++;
                            str = String.valueOf(2 * num);
                            texts[i + 1][j].setText(str );
                            setColor(i+1, j, str);
                            texts[i][j].setText("");
                            setColor(i, j, "");
                            a = i;
                        }
                    }
                }
            }
            l4 = 1;
            Create2();
            break;
            default:
                break;
        }
        textScores.setText(String.valueOf(scores));
    }

    /**
     * 在随机位置产生一个2号方块的方法
     * @param i,j
     */
    public void Create2(){
        int i ,j;
        boolean r = false;
        String str;

        if(times > 0){
            while(!r){
                i = random.nextInt(4);
                j = random.nextInt(4);
                str = texts[i][j].getText();
                if((str.compareTo("") == 0)){
                    texts[i][j].setIcon(icon2);
                    texts[i][j].setText("2");
                    setColor(i, j, "2");

                    times --;
                    r = true;
                    l1 = l2 = l3 = l4 = 0;
                }
            }
        }
        else if(l1 >0 && l2 >0 && l3 > 0 && l4 > 0){        //l1到l4同时被键盘赋值为1说明任何方向键都不能产生新的数字2，说明游戏失败
                tips.setText("                            GAME　OVER ！");

        }
    }

    /**
     * 设置标签颜色
     * @param i , j ,str
     */
    public void setColor(int i, int j, String str){
        switch(str){
        case "2":
            texts[i][j].setBackground(Color.yellow);
            break;
        case "4":
            texts[i][j].setBackground(Color.red);
            break;
        case "8":
            texts[i][j].setBackground(Color.pink);
            break;
        case "16":
            texts[i][j].setBackground(Color.orange);
            break;
        case "32":
            texts[i][j].setBackground(Color.magenta);
            break;
        case "64":
            texts[i][j].setBackground(Color.LIGHT_GRAY);
            break;
        case "128":
            texts[i][j].setBackground(Color.green);
            break;
        case "256":
            texts[i][j].setBackground(Color.gray);
            break;
        case "512":
            texts[i][j].setBackground(Color.DARK_GRAY);
            break;
        case "1024":
            texts[i][j].setBackground(Color.cyan);
            break;
        case "2048":
            texts[i][j].setBackground(Color.blue);
            break;
        case "":
        case "4096":
            texts[i][j].setBackground(Color.white);
            break;
        default:
            break;
        }

    }

}