/**
 * Minesweeper.java
 *
 */

import javax.swing.*;
import java.awt.*;
import java.awt.event.MouseEvent;
import java.awt.event.MouseListener;
import java.awt.event.WindowEvent;
import java.awt.event.WindowListener;


public class Minesweeper extends Frame implements MouseListener, WindowListener
{
	private Rectangle [][] theGrid;
	private int rowClicked;
	private int colClicked;
	private final int SIZE = 3;
	private final int WIDTH = 500;
	private final int HEIGHT = 500;
	private final int CELL_WIDTH = WIDTH/SIZE;
	private final int CELL_HEIGHT = HEIGHT/SIZE;


	public Minesweeper()
	{
		Dimension rectDim = new Dimension(CELL_WIDTH, CELL_HEIGHT);
		theGrid = new Rectangle [SIZE][SIZE];

		for(int row = 0; row < SIZE; row++)
		{
			for (int col = 0; col < SIZE; col++)
			{
				Point upperLeft = new Point(150 + CELL_WIDTH*col, 50 + CELL_HEIGHT * row);
				theGrid[row][col] = new Rectangle(upperLeft, rectDim);
			}
		}

		setBackground(Color.white);

		rowClicked = -1;
		colClicked = -1;

		this.addMouseListener(this);
		this.addWindowListener(this);
	}

	// The following methods are required to implement a MouseListener
	public void mouseClicked(MouseEvent evt)
	{
		Point pointClicked = evt.getPoint();

		for(int row = 0; row < SIZE; row++)
		{
			for (int col = 0; col < SIZE; col++)
			{
				if(theGrid[row][col].contains(pointClicked))
				{
					rowClicked = row;
					colClicked = col;
				}
			}
		}

		repaint();
	}

	public void mouseEntered(MouseEvent evt) { /* no action */ }
	public void mouseExited(MouseEvent evt) { /* no action */ }
	public void mousePressed(MouseEvent evt) { /* no action */ }
	public void mouseReleased(MouseEvent evt) { /* no action */ }


	public void paint(Graphics g)
	{

		g.setColor(Color.blue);

		if(rowClicked != -1 && colClicked != -1)
		{
			g.fillRect(theGrid[rowClicked][colClicked].x,
					   theGrid[rowClicked][colClicked].y,
					   theGrid[rowClicked][colClicked].width,
					   theGrid[rowClicked][colClicked].height);
		}

		g.setColor(Color.black);

		for(int row = 0; row < SIZE; row++)
		{
			for (int col = 0; col < SIZE; col++)
			{
				g.drawRect(theGrid[row][col].x,
						   theGrid[row][col].y,
						   theGrid[row][col].width,
						   theGrid[row][col].height);
			}
		}

	}

	public void windowClosing(WindowEvent e)
	{
		dispose();
		System.exit(0);
	}
	public void windowOpened(WindowEvent e)
	{ }
	public void windowIconified(WindowEvent e)
	{ }
	public void windowClosed(WindowEvent e)
	{ }
	public void windowDeiconified(WindowEvent e)
	{ }
	public void windowActivated(WindowEvent e)
	{ }
	public void windowDeactivated(WindowEvent e)
	{ }


}