Java完美实现2048小游戏

import javax.swing.*;import java.awt.*;public class Block extends JLabel {  private int value;  public Block()   {    value = 0;//初始化值为0    setFont(new Font("font", Font.PLAIN, 40));//设定字体    setBackground(Color.gray);//设定初始颜色为灰色  }   public int getValue()//获取值  {    return value;  }   public void setValue(int value)  {    this.value = value;    String text = String.valueOf(value);    if (value != 0)      setText(text);    else      setText("");//如果值为0则不显示    setColor();  }   public void setColor() //根据值的不同设定不同的背景颜色、label字体  {    switch (value)       {    case 0:      setBackground(Color.gray);      break;    case 2:      setBackground(new Color(238, 228, 218));      break;    case 4:      setBackground(new Color(238, 224, 198));      break;    case 8:      setBackground(new Color(243, 177, 116));      break;    case 16:      setBackground(new Color(243, 177, 116));      break;    case 32:      setBackground(new Color(248, 149, 90));      break;    case 64:      setBackground(new Color(249, 94, 50));      break;    case 128:      setBackground(new Color(239, 207, 108));      break;    case 256:      setBackground(new Color(239, 207, 99));      break;    case 512:      setBackground(new Color(239, 203, 82));      break;    case 1024:      setBackground(new Color(239, 199, 57));      break;    case 2048:      setBackground(new Color(239, 195, 41));      break;    case 4096:      setBackground(new Color(255, 60, 57));      break;      }  }}

import java.awt.*;import javax.swing.*;public class My2048 extends JFrame {   public My2048()//构造函数   {    setTitle("2048");//设置标题    setSize(400, 400);//设定窗口大小    setLocation(500, 200);//设定窗口起始位置    setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);    getContentPane().setLayout(new GridLayout(4, 4, 5, 5));//设定布局方式为GridLayout型    new Operation(this);    this.setVisible(true);//设为可视  }   public static void main(String args[]) //程序入口点  {    try    {      UIManager.setLookAndFeel("org.jvnet.substance.skin.SubstanceRavenGraphiteLookAndFeel");//设定UI    } //接受抛出的异常    catch (ClassNotFoundException | InstantiationException| IllegalAccessException | UnsupportedLookAndFeelException e)    {      e.printStackTrace();    }    JFrame.setDefaultLookAndFeelDecorated(true);//设定Frame的缺省外观    new My2048();  } }

import java.awt.event.*;import javax.swing.*;public class Operation implements KeyListener{  Block[] block;//用于储存16个数据  JPanel panel;  public boolean up,down,left,right;  int moveFlag;//用于累计移动的次数  boolean numFlag;//用于判断是否还能加入新的数字  public Operation(JFrame frame)   {    this.panel = (JPanel)frame.getContentPane();//构造出panel    block = new Block[16];//构造出长度为16的数组    numFlag = true;//初始化    moveFlag = 0;    up=true;down=true;left=true;right=true;    addBlock();    for (int i = 0; i < 2; i++)      appearBlock();    frame.addKeyListener(this);  }   private void addBlock()   {    for (int i = 0; i < 16; i++) //往panel里加入block    {      block[i] = new Block();      block[i].setHorizontalAlignment(JLabel.CENTER);// 不透明的标签      block[i].setOpaque(true);      panel.add(block[i]);      }  }   public void appearBlock()   {    while (numFlag) //当还能加入随机的一个新的值得时候    {      int index = (int) (Math.random() * 16);//取一个0到15的随机整数，这个数作为随机加入盘中的2或4的位置      if (block[index].getValue() == 0)//如果这个数所在的block数组中值为0，即在为空的时候，加入一个2或4的数字      {        if (Math.random() < 0.5)        {          block[index].setValue(2);        }        else        {          block[index].setValue(4);        }        break;//跳出while      }    }  }   public void judgeAppear() //统计block数组中是否含有值为0的元素，若没有，则numFlag变为false  {    int sum = 0;    for (int i = 0; i < 16; i++)     {      if (block[i].getValue() != 0)      {        sum++;      }    }    if (sum == 16)      numFlag = false;   }   public int Find(int i,int j,int a,int b)  {    while(i<b&&i>=a)    {       if(block[i].getValue()!=0)       {        return i;       }       i=i+j;    }    return -1;  }  public void upBlock()  {    int i=0,j=0;int t=0;int valueJ=0;int valueI=0;int index=0;    for(i=0;i<4;i++)    {      index=i;      for(j=i+4;j<16;j+=4)      {          valueJ=0; valueI=0;        if(block[index].getValue()==0)        {          t=Find(index,4,0,16);          if(t!=-1)          {            block[index].setValue(block[t].getValue());            block[t].setValue(0);          }          else          {            break;          }        }        valueI=block[index].getValue();        if(block[j].getValue()==0)        {          t=Find(j,4,0,16);          if(t!=-1)          {            block[j].setValue(block[t].getValue());            block[t].setValue(0);          }          else          {            break;          }        }        valueJ=block[j].getValue();        if(valueI==valueJ&&valueI!=0&&valueJ!=0)        {          block[index].setValue(valueI+valueJ);          block[j].setValue(0);          numFlag = true;        }        index=j;      }           }  }  public void downBlock() {     int i=0,j=0;int t=0;int valueJ=0;int valueI=0;int index=0;    for(i=12;i<16;i++)    {      index=i;      for(j=i-4;j>=0;j-=4)      {          valueJ=0; valueI=0;        if(block[index].getValue()==0)        {          t=Find(index,-4,0,16);          if(t!=-1)          {            block[index].setValue(block[t].getValue());            block[t].setValue(0);          }          else          {            break;          }        }        valueI=block[index].getValue();        if(block[j].getValue()==0)        {          t=Find(j,-4,0,16);          if(t!=-1)          {            block[j].setValue(block[t].getValue());            block[t].setValue(0);          }          else          {            break;          }        }        valueJ=block[j].getValue();        if(valueI==valueJ&&valueI!=0&&valueJ!=0)        {          block[index].setValue(valueI+valueJ);          block[j].setValue(0);          numFlag = true;        }        index=j;      }           }  }  public void rightBlock()   {    int i=0,j=0;int t=0;int valueJ=0;int valueI=0;int index=0;    for(i=3;i<16;i+=4)    {      index=i;      for(j=i-1;j>i-4;j--)      {          valueJ=0; valueI=0;        if(block[index].getValue()==0)        {          t=Find(index,-1,i-3,index+1);          if(t!=-1)          {            block[index].setValue(block[t].getValue());            block[t].setValue(0);          }          else          {            break;          }        }        valueI=block[index].getValue();        if(block[j].getValue()==0)        {          t=Find(j,-1,i-3,j+1);          if(t!=-1)          {            block[j].setValue(block[t].getValue());            block[t].setValue(0);          }          else          {            break;          }        }        valueJ=block[j].getValue();        if(valueI==valueJ&&valueI!=0&&valueJ!=0)        {          block[index].setValue(valueI+valueJ);          block[j].setValue(0);          numFlag = true;        }        index=j;      }           }  }  public void leftBlock()   {    int i=0,j=0;int t=0;int valueJ=0;int valueI=0;int index=0;    for(i=0;i<16;i+=4)    {      index=i;      for(j=i+1;j<i+4;j++)      {          valueJ=0; valueI=0;        if(block[index].getValue()==0)        {          t=Find(index,1,index,i+4);          if(t!=-1)          {            block[index].setValue(block[t].getValue());            block[t].setValue(0);          }          else          {            break;          }        }        valueI=block[index].getValue();        if(block[j].getValue()==0)        {          t=Find(j,1,j,i+4);          if(t!=-1)          {            block[j].setValue(block[t].getValue());            block[t].setValue(0);          }          else          {            break;          }        }        valueJ=block[j].getValue();        if(valueI==valueJ&&valueI!=0&&valueJ!=0)        {          block[index].setValue(valueI+valueJ);          block[j].setValue(0);          numFlag = true;        }        index=j;      }           }  }  public void over()   {    if (numFlag ==false&& up==false&&down==false&&left==false&&right==false) //当不能添加元素，并且不可移动的步数超过36就输了，输了的时候在盘中央显示GAMEOVER    {      block[4].setText("G");      block[5].setText("A");      block[6].setText("M");      block[7].setText("E");      block[8].setText("O");      block[9].setText("V");      block[10].setText("E");      block[11].setText("R");       block[11].addMouseListener(new MouseAdapter() {public void mousePressed(MouseEvent e){reStart();}});    }  }     public void win() //同OVER  {     block[0].setText("Y");    block[1].setText("O");    block[2].setText("U");    block[13].setText("W");    block[14].setText("I");    block[15].setText("N");    block[15].addMouseListener(new MouseAdapter() {      public void mousePressed(MouseEvent e) {        reStart();      }    });  }  public void reStart()//重启游戏，和构造函数类似，不在累述  {    numFlag=true;    moveFlag=0;    up=true;down=true;left=true;right=true;    for(int i=0;i<16;i++)      block[i].setValue(0);    for (int i = 0; i < 2; i++)      appearBlock();  }  public void keyPressed(KeyEvent e) //判断按的上下左右键，并依次调用移动函数、判断函数、添加函数、判断是否输掉的函数  {    switch (e.getKeyCode()) {    case KeyEvent.VK_UP:      if(up){      upBlock();}      judgeAppear();      appearBlock();      over();             if(numFlag==false)      {        up=false;      }      else      {        up=true;down=true;left=true;right=true;      }      break;    case KeyEvent.VK_DOWN:      if(down){      downBlock();}      judgeAppear();      appearBlock();      over();      if(numFlag==false)      {        down=false;      }      else      {        up=true;down=true;left=true;right=true;      }      break;    case KeyEvent.VK_LEFT:      if(left){      leftBlock();}      judgeAppear();      appearBlock();      over();             if(numFlag==false)      {        left=false;      }      else      {        up=true;down=true;left=true;right=true;      }      break;    case KeyEvent.VK_RIGHT:      if(right){      rightBlock();}      judgeAppear();      appearBlock();      over();             if(numFlag==false)      {        right=false;      }      else      {        up=true;down=true;left=true;right=true;      }      break;    }   }  public void keyTyped(KeyEvent e) {   }  public void keyReleased(KeyEvent e) {   } }