// File Name:    Mine.java
// Author:       TianBaideng		Student Number: 3005218107
// Class Day:    thursday			Class Number: 4		Class Year: 2005
// Email:        tian_bai_deng@126.com
// Assignment number:  4
// Description:  this class is the major class which create a window,buttons,
//				 and add icon on the button,and has a iner class,Buttonhandler,
//				 which is to deal with mouse click event,in addition,the main 
//				 arithmetic is in method clear()

import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import java.util.*;
public class Mine extends JFrame{
	
	//store buttons
	private Button buttons[][];
	
	//the mine map,include 0: none mine,1:mine
	private Map map[][];
	private Container container;
	private Icon icon [];
	private JLabel label;
	
	//the number of the remaining mines
	private int remain ;
	
	//record the buttons position marked with flag
	private int record[];
	
	//count for record
	private int r;
	
	//for remain mine
	private boolean result;
	
	//class Mine constructor which will display the window and create 10*10
	//buttons which will add a addMouseListener then call method initial() 
	//that I have define below to initialize the window
	public Mine()
	{
	   super("Mine Sweeper");
	   
	   //record the butons that is marked with flag 
	   record = new int [20];
	   container = getContentPane();
	   
	   //the whole container is  BorderLayout
	   container.setLayout(new BorderLayout());
	   //create label
	   label = new JLabel();
	   
	   //contain the buttons
	   JPanel pan = new JPanel();
	   
	   //contain the label
	   JPanel flow = new JPanel();
	   
	   flow.setLayout(new FlowLayout());
	   flow.add(label);
	   
	   pan.setLayout(new GridLayout(10,10,0,0));
	   
	   //add the label in the top and buttons in the bottom
	   container.add(flow,BorderLayout.NORTH);
	   container.add(pan,BorderLayout.CENTER); 
	   
	   //image sets
	   String[] name = {"none.gif","1.gif","2.gif","3.gif","4.gif","5.gif","6.gif",
			   			"7.gif","8.gif","mine.gif","flags.gif","d.gif","problem.gif"};
	   //create icons
	   icon = new Icon[13];
	   for(int i=0;i<13;i++)
		   icon[i] = new ImageIcon(name[i]);
	   
	   //create 10*10 buttons  
	   buttons = new Button [10][10];
	   
	   //create map
	   map = new Map[10][10]; 
	   Buttonhandler handler = new Buttonhandler();
	  
	   //add 100 buttons
	   for(int i=0;i<10;i++)
	   {
		   for(int j=0;j<10;j++)
		   {
			   map[i][j] = new Map();
			   buttons[i][j] = new Button();
			  
			   //every button add a listener
			   buttons[i][j].addMouseListener(handler);
			   
			   //add the button in the pan which style is grid
			   pan.add(buttons[i][j]);
		   }
	   }
	   //initialize
	   initial();
	   setSize(430,480);
	   
	   //set the window not resizable
	   setResizable(false);
	   setVisible(true);
	}// end construct method 
	
	//initialize the window such as set button icon ,randomly set mines
	void initial()
	{
		result = true;
		 remain = 10;
		 r = 0;
		 label.setText("Mines remaining"+remain);
		 label.setForeground(Color.BLUE);
		 
		 //initialize buttons with icon and buttons with flags  
		 for(int i=0;i<10;i++)
			 for(int j=0;j<10;j++)
			 {
				 map[i][j].mine = 0;
				 map[i][j].flag = 0;
				 buttons[i][j].setIcon(icon[11]);
				 buttons[i][j].Lclick = 0;
				 buttons[i][j].Rclick = 0;
			     buttons[i][j].flag = 0;
			}
		 
		   //Randomly add 10 Mines
		   Random  random = new Random();
		   for(int i=0;i<10;i++)
		   {
			   int n= random.nextInt(100);
			   while(map[n/10][n%10].mine!=0)
			   {
				   n=random.nextInt(100);
			   }   
			   map[n/10][n%10].mine=1;
		   }
	}// end method initial 
	
	//spread the none mine area,this method is a recursion method
	public void clear(int x,int y)
	{
		//guarantee the area in the map 
		if(x>=0&&x<10&&y>=0&&y<10)
		{
			//insure the area is not referenced
			if(map[x][y].flag ==0&&buttons[x][y].flag == 0)
			{
				//mark the area that can not be clicked 
				map[x][y].flag = 1;
				buttons[x][y].flag =1;
				buttons[x][y].Lclick = 1;
				
				//get the number of mines surrounding the area
				int c = search(x,y);
				
				//if no mine,then to spread this area and to check its surrounding area
				if(c == 0)
				{
					buttons[x][y].setIcon(icon[0]);
					for(int i=x-1;i<=x+1;i++)
						for(int j=y-1;j<=y+1;j++)	
						{
							clear(i,j);
						}
				}
				//if has mines,mark the number of mines,then ends
				else
					buttons[x][y].setIcon(icon[c]);	
			}
		}
	}// end method clear
	
	// exposure the mine area
	void sweeper()
	{
	   for(int i=0;i<10;i++)
		   for(int j=0;j<10;j++)
			   if(map[i][j].mine == 1)
				   buttons[i][j].setIcon(icon[9]);
	}// end method sweeper
	
	//found the number of mines in 8 directions 
	int search(int x,int y)
	{
		int count =0;
		for(int i=x-1;i<=x+1;i++)
			for(int j=y-1;j<=y+1;j++)
			{
				if(i>=0&&i<10&&j>=0&&j<10)
					if(map[i][j].mine == 1)
					count ++;
			}
		return count;
		
	} //end method search
	
	//deal with right button event
	void rbutton(int i,int j)
	{
		//deal with which  icon is displayed
		//0: the original icon is displayed
		//1: the flag icon is displayed and mark this button
		//   the left button can not click 
		//2: the problem icon is displayed and cancel the mark
		//   that the left button can click 
		
		//left button is not clicked
		
		//the right click number increase
		buttons[i][j].Rclick++;
		buttons[i][j].flag = 1;
		switch(buttons[i][j].Rclick%3)
		{
			case 0:
				buttons[i][j].flag = 0;
				buttons[i][j].setIcon(icon[11]);
				break;
			case 1:
				if(result)
				{
					if(remain>0)
					{
						record[r] = i;
						r++;
						record[r] = j;
						r++;
					
						buttons[i][j].flag = 1;
						buttons[i][j].setIcon(icon[10]);
						remain--;
						label.setText("Mines remaining"+remain);
						//remaining mine is none
						if(remain == 0 )
						{	
							//check whether all of the flag buttons is mine
							for(int k=0;k<10;k++)
							{
								if(map[record[2*k]][record[2*k+1]].mine ==0)
								{
									result = false;
									break;
								}
							}
							if(result)
							{
								JOptionPane.showMessageDialog(null,"You Win!!" );
						
								//reset
								initial();
							}
							else
								JOptionPane.showMessageDialog(null,"Miss mark!!!!" );
						
						}
					}
				}
				else
				{
					buttons[i][j].Rclick--;
					JOptionPane.showMessageDialog(null,"Miss mark!!!!" );
				}
				break;
			case 2:
				if(remain>0 || !result)
				{
					r--;
					r--;
					buttons[i][j].flag = 0;
					remain++;
					label.setText("Mines remaining"+remain);
					buttons[i][j].setIcon(icon[12]);
					result = true;
				}
				break;
		}
		//if(remain == 0)
	} //end method rbutton
	
	//deal with left button event
	void lbutton(int i,int j)
	{
		
		//this button has not been clicked
		if(buttons[i][j].flag == 0)
		{
			//mark the button 
			buttons[i][j].Lclick = 1;
			
			//mine
			if(map[i][j].mine == 1)
			{
				//map[i][j].flag =1;
				
				//all mines is displayed
				sweeper();
				
				//game is over and reset
				JOptionPane.showMessageDialog(null,"You are die!!" );
				initial();
			}
			
			//none mine
			else 
				clear(i,j);
			}
	}//end method lbutton
	
	//mouse handler to deal with the mouse event
	class Buttonhandler extends MouseAdapter 
	{
		
		public void mouseClicked (MouseEvent event)
		{
			//to check which mouse event
			for(int i=0;i<10;i++)
			{
				for(int j=0;j<10;j++)
				{
					//if the event is the button event,then......
					if(event.getSource() == buttons[i][j])
					{
						//right button is clicked
						if(event.isMetaDown())
						{
							if(buttons[i][j].Lclick == 0)
								rbutton(i,j);
						}
						//left button is clicked
						else
							lbutton(i,j);
					}
			   }// end iner for 
		   } // end outer for		
		} // end class Buttonhandler
	}
}   //end class Mine