2048游戏的Java实现

写的比较匆忙，功能较为单一，界面丑，操作步数应该还能优化。

最终还是要写AI，但好像没那么简单，写了几个关于格局评价的函数，还得继续学习。。。

上下左右方向键操作。

源代码：

import java.awt.BorderLayout;import java.awt.Color;import java.awt.Font;import java.awt.GridLayout;import java.awt.event.*;import java.util.Random;import javax.swing.JFrame;import javax.swing.JLabel;import javax.swing.JOptionPane;import javax.swing.JPanel;import javax.swing.JTextField;import javax.swing.border.TitledBorder;public class My2048 extends JFrame {JPanel numpanel = new JPanel();JPanel scorepanel = new JPanel();JLabel numlabellist[][] = new JLabel[4][4];// 数字格子int numlist[][] = new int[4][4];// 数组格子对应数值int blanks = 16;// 空白格子数int score=0;//总得分JLabel scorelabel=new JLabel();int numlist2[][] = new int[4][4];//用于格局评价时的数组int smoothweight=1;int monoweight=10;int emptyweight=27;int maxweight=10;public static void main(String[] args) {new My2048().launchFrame();}public void AddNumArea() {for (int i = 0; i < 4; i++)for (int j = 0; j < 4; j++) {numlabellist[i][j] = new JLabel();numlist[i][j] = 0;numlabellist[i][j].setBackground(Color.LIGHT_GRAY);numlabellist[i][j].setBorder(new TitledBorder(""));numlabellist[i][j].setFont(new Font("Romantic", Font.BOLD, 35));numlabellist[i][j].setHorizontalAlignment(JTextField.CENTER);numpanel.add(numlabellist[i][j]);}}public void AddScoreLabel(){scorelabel.setBackground(Color.MAGENTA);scorelabel.setFont(new Font("Romantic", Font.BOLD, 35));scorelabel.setHorizontalAlignment(JTextField.CENTER);scorelabel.setText("score:"+Integer.toString(score));scorepanel.add(scorelabel);}// 随机选一个空白格子public int RandomIndex(int blanks) {Random random = new Random(System.currentTimeMillis());int result = random.nextInt(blanks)+1;return result;}// 2,4随机选一个public int RandomValue() {Random random = new Random();int result = random.nextInt(2);return (result+1)*2;}//空白处产生一新值，自带refresh功能public void NewValue() {int newvalue = RandomValue();// 新值int index = RandomIndex(blanks);// 新值得位置blanks--;// 空白格子数-1for (int i = 0; i < 4; i++)for (int j = 0; j < 4; j++) {if (numlist[i][j] == 0)index--;if (index == 0) {numlist[i][j] = newvalue;// 相应label上显示新值numlabellist[i][j].setText(Integer.toString(newvalue));return;}}}public boolean LeftReduce() {boolean changed=false;//是否有改变（移动和相加），作为后续是否产生新值得依据boolean has0before;int p;// 行指针int value;//当前值for (int i = 0; i < 4; i++){p=0;value=0;has0before=false;for (int j = 0; j < 4; j++) {if(numlist[i][j]>0&&has0before)//移动方向上之前有空格，可移动，changed为truechanged=true;if(numlist[i][j]==0)has0before=true;if (numlist[i][j] > 0){if(numlist[i][j]==value)//相加放p位置{int sum=value*2;numlist[i][j]=0;numlist[i][p]=sum;value=0;p++;score+=sum;changed=true;//相加，changed为true}else{if(value>0)//value放p中，当前值放value中{numlist[i][p]=value;p++;}value=numlist[i][j];numlist[i][j]=0;}}}if(value>0)//到最后value中可能有值numlist[i][p]=value;}return changed;}public boolean RightReduce() {boolean changed=false;//是否有改变（移动和相加），作为后续是否产生新值得依据boolean has0before;int p;// 行指针int value;//当前值for (int i = 0; i <4; i++){p=3;value=0;has0before=false;for (int j = 3; j >= 0; j--) {if(numlist[i][j]>0&&has0before)//移动方向上之前有空格，可移动，changed为truechanged=true;if(numlist[i][j]==0)has0before=true;if (numlist[i][j] > 0){if(numlist[i][j]==value)//相加放p位置{int sum=value*2;numlist[i][j]=0;numlist[i][p]=sum;value=0;p--;score+=sum;changed=true;//相加，changed为true}else{if(value>0)//value放p中，当前值放value中{numlist[i][p]=value;p--;}value=numlist[i][j];numlist[i][j]=0;}}}if(value>0)//到最后value中可能有值numlist[i][p]=value;}return changed;}public boolean UpReduce() {boolean changed=false;//是否有改变（移动和相加），作为后续是否产生新值得依据boolean has0before;int p;// 行指针int value;//当前值for (int j = 0; j <4; j++){p=0;value=0;has0before=false;for (int i = 0; i <4; i++) {if(numlist[i][j]>0&&has0before)//移动方向上之前有空格，可移动，changed为truechanged=true;if(numlist[i][j]==0)has0before=true;if (numlist[i][j] > 0){if(numlist[i][j]==value)//相加放p位置{int sum=value*2;numlist[i][j]=0;numlist[p][j]=sum;value=0;p++;score+=sum;changed=true;//相加，changed为true}else{if(value>0)//value放p中，当前值放value中{numlist[p][j]=value;p++;}value=numlist[i][j];numlist[i][j]=0;}}}if(value>0)//到最后value中可能有值numlist[p][j]=value;}return changed;}public boolean DownReduce() {boolean changed=false;//是否有改变（移动和相加），作为后续是否产生新值得依据boolean has0before;int p;// 行指针int value;//当前值for (int j = 0; j <4; j++){p=3;value=0;has0before=false;for (int i = 3; i >=0; i--) {if(numlist[i][j]>0&&has0before)//移动方向上之前有空格，可移动，changed为truechanged=true;if(numlist[i][j]==0)has0before=true;if (numlist[i][j] > 0){if(numlist[i][j]==value)//相加放p位置{int sum=value*2;numlist[i][j]=0;numlist[p][j]=sum;value=0;p--;score+=sum;changed=true;//相加，changed为true}else{if(value>0)//value放p中，当前值放value中{numlist[p][j]=value;p--;}value=numlist[i][j];numlist[i][j]=0;}}}if(value>0)//到最后value中可能有值numlist[p][j]=value;}return changed;}public void Refresh(){blanks=0;scorelabel.setText("score:"+Integer.toString(score));for(int i=0;i<4;i++)for(int j=0;j<4;j++){if(numlist[i][j]!=0)numlabellist[i][j].setText(Integer.toString(numlist[i][j]));else{numlabellist[i][j].setText(null);blanks++;}}}public boolean CheckOut(){if(blanks>0)return false;for(int i=0;i<4;i++)for(int j=0;j<3;j++){if(numlist[i][j]==numlist[i][j+1])return false;}for(int j=0;j<4;j++)for(int i=0;i<3;i++){if(numlist[i][j]==numlist[i+1][j])return false;}return true;}public void Out(){JOptionPane.showMessageDialog(null, "游戏结束！", "2048PC版", 2);System.exit(0);}public void PrintNumlist() {for (int i = 0; i < 4; i++) {for (int j = 0; j < 4; j++){System.out.print(numlist[i][j]);System.out.print(' ');}System.out.println();}System.out.println("***********************");}//单调率，后期乘以monoweight(干脆方法内乘了）public int Mononess(){int result1=0;//从右往左递增度量int result2=0;//从上往下递增度量int lastvalue=0;for(int i=0;i<4;i++){lastvalue=0;for(int j=0;j<4;j++){if(numlist[i][j]>0){if(lastvalue>0)if(numlist[i][j]<lastvalue)result1++;if(numlist[i][j]>lastvalue)result1--;lastvalue=numlist[i][j];}}}lastvalue=0;for(int j=0;j<4;j++){lastvalue=0;for(int i=0;i<4;i++){if(numlist[i][j]>0){if(lastvalue>0)if(numlist[i][j]>lastvalue)result2++;if(numlist[i][j]<lastvalue)result2--;lastvalue=numlist[i][j];}}}if(result2>result1)return result2*monoweight;return result1*monoweight;}//平滑率，是负数，是差的和的相反数，后期乘以smoothweight(干脆方法内乘了）public int Smoothness(){int result1=0;//水平方向int result2=0;//竖直方向int lastvalue=0;for(int i=0;i<4;i++){lastvalue=0;for(int j=0;j<4;j++){if(numlist[i][j]>0){if(lastvalue>0)result1+=Math.abs(numlist[i][j]-lastvalue);lastvalue=numlist[i][j];}}}lastvalue=0;for(int j=0;j<4;j++){lastvalue=0;for(int i=0;i<4;i++){if(numlist[i][j]>0){if(lastvalue>0)result2+=Math.abs(numlist[i][j]-lastvalue);lastvalue=numlist[i][j];}}}if(result2>result1)return (0-result1)*smoothweight;return (0-result2)*smoothweight;}//最大数，后期乘以maxweight(干脆方法内乘了）public int Maxness(){int max=0;for(int i=0;i<4;i++)for(int j=0;j<4;j++)if(numlist[i][j]>max)max=numlist[i][j];return max*maxweight;}public int Emptyness(){return blanks*emptyweight;}public void launchFrame() {setTitle("2048PC版"); // 设置窗体标题setBounds(700, 100, 400, 475);setLayout(new BorderLayout());setResizable(false); // 禁止调整窗体大小numpanel.setLayout(new GridLayout(4, 4)); // 设置空布局numpanel.setLocation(0,200);AddScoreLabel();//添加计分器AddNumArea();// 添加数字格子getContentPane().add(scorepanel,BorderLayout.NORTH);getContentPane().add(numpanel,BorderLayout.CENTER);NewValue();NewValue();this.addWindowListener(new WindowAdapter() {public void windowClosing(WindowEvent e) {System.exit(0);}});this.addKeyListener(new KeyAdapter() {public void keyPressed(KeyEvent e) {if (e.getKeyCode() == 37)// 左键{if(LeftReduce()){Refresh();//更新blank，numlabellistNewValue();}}if (e.getKeyCode() == 39)// 右键{if(RightReduce()){Refresh();//更新blank，numlabellistNewValue();}}if (e.getKeyCode() == 38)// 上键{if(UpReduce()){Refresh();//更新blank，numlabellistNewValue();}}if (e.getKeyCode() == 40)// 上键{if(DownReduce()){Refresh();//更新blanks，numlabellist,scorelabelNewValue();}}if (e.getKeyCode() == 32)// 空格键{if(LeftReduce()){Refresh();//更新blanks，numlabellist,scorelabelNewValue();}else if(RightReduce()){Refresh();//更新blanks，numlabellist,scorelabelNewValue();}else if(UpReduce()){Refresh();//更新blanks，numlabellist,scorelabelNewValue();}else if(DownReduce()){Refresh();//更新blanks，numlabellist,scorelabelNewValue();}} System.out.println(e.getKeyCode());if(CheckOut())//检查游戏是否结束Out();PrintNumlist();System.out.println("mononess:"+Integer.toString(Mononess()));System.out.println("smoothness:"+Integer.toString(Smoothness()));System.out.println("maxnum:"+Integer.toString(Maxness()));System.out.println("blanks:"+Integer.toString(Emptyness()));}});setVisible(true);}}