通过一个游戏编程熟悉文件操作

 《通过一个游戏编程熟悉事件处理》http://blog.youkuaiyun.com/flyuniverse_shell/archive/2009/10/23/4719939.aspx

 

已经完成了目标一，今天我们学习了文件操作，那么我们可以接着完成目标二。代码如下：

import java.awt.Color;
import java.awt.GridLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.io.BufferedWriter;
import java.io.File;
import java.io.FileWriter;
import java.io.IOException;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JOptionPane;
import javax.swing.JPanel;

class GameButton extends JButton
{
    GameButton(String str)
    {
       super(str);
       super.setSize(10, 10);
       super.setBackground(Color.WHITE);
       super.setFont(new java.awt.Font("Dialog",1,60));//设置字体
    }
}

public class MyGame extends JFrame implements  ActionListener
{
   private JFrame f = new JFrame("Game-Java 实现");
   private JPanel jp = new JPanel(new GridLayout(4,3,10,10));
   private GameButton [] gb = new GameButton[9];
   private int[][] relationShips = new int[9][];
   private JButton JBSaveOperation = new JButton("保存操作记录");
   File fileSave = null; //游戏记录文件
   StringBuffer tempSaveStrB=new StringBuffer(); //暂时保存操作，最终会保存到fileSave中去
  
   MyGame()
   { 
       f.setLocation(10,100);
       f.setSize(600,400);
       f.getContentPane().add(jp);
      
       for(int i=0;i<gb.length;i++)
       {
        gb[i]=new GameButton("-");
        jp.add(gb[i]);
        gb[i].addActionListener(this);  //添加按钮事件
       }

       gb[4].setText("+");
       JBSaveOperation.addActionListener(this);
       jp.add(JBSaveOperation);
       f.setVisible(true); 

       relationShips[0] = new int[] { 0, 1, 3, 4 };
       relationShips[1] = new int[] { 0, 1, 2 };
       relationShips[2] = new int[] { 1, 2, 4, 5 };
       relationShips[3] = new int[] { 0, 3, 6 };
       relationShips[4] = new int[] { 1, 3, 4, 5, 7 };
       relationShips[5] = new int[] { 2, 5, 8 };
       relationShips[6] = new int[] { 3, 4, 6, 7 };
       relationShips[7] = new int[] { 6, 7, 8 };
       relationShips[8] = new int[] { 4, 5, 7, 8 };
      
       fileSave = new File("game.txt");
       if(!fileSave.exists())
       {
   try
   {
    fileSave.createNewFile();
   }
   catch (IOException e)
   {
    e.printStackTrace();
   }
  }
   }

   public static void main(String[] args)
   {
       MyGame g=new MyGame();  
   }

    public void actionPerformed(ActionEvent e)
    {
     if(e.getSource().equals(JBSaveOperation))//如果点击的是“保存操作”按钮
    {
     BufferedWriter writer;
     try
   {  //记录游戏结果 写进游戏记录文档
      writer = new BufferedWriter(new FileWriter("game.txt"));
      writer.write(tempSaveStrB.toString());
      writer.newLine();
      writer.close();
   } catch (IOException ex)
   {
    ex.printStackTrace();
   }
    }
       for(int i=0;i<9;i++)
       {
           if(e.getSource().equals(gb[i])) //如果点中第i个
           {
              if(gb[i].getText().equals("-"))
              {
                  JOptionPane.showMessageDialog(null,"你应该点“+”的");
                  return;
              }
              ButtonChange(i);
              tempSaveStrB.append(i+",");
              if(isWin())
              {JOptionPane.showMessageDialog(null,"你输了！");}
              if(isFail())
              {JOptionPane.showMessageDialog(null,"你赢了！");}
           }
       }
    }
 
    private boolean isFail()
    {
  int count=0;
        for(int i=0;i<gb.length;i++)
        {
           if(gb[i].getText().equals("-"))
            count++;
        }
        if(9==count)
      return true;
        else
         return false;
 }

 private boolean isWin() //遍历所有Button
 {
  int count=0;
        for(int i=0;i<gb.length;i++)
        {
           if(gb[i].getText().equals("+"))
            count++;
        }
        if(8==count && gb[4].getText().equals("-"))
      return true;
        else
         return false;
 }

 private void ButtonChange(int i)
    {
       for(int j=0;j<relationShips[i].length;j++)
       {
           if(gb[relationShips[i][j]].getText().equals("+"))
           {
              gb[relationShips[i][j]].setText("-");
           }
           else
           {
              gb[relationShips[i][j]].setText("+");
           }
       }
    }
}