//  Scott DeRuiter                   3/12/2003
//  FindCircle.java
//  Move around a grid until you find a circle.
//	13-feb-27 - Greenstein - Changed from JApplet to JFrame


import java.awt.*;
import java.awt.event.*;
import javax.swing.*;

public class FindCircle extends JFrame implements KeyListener, FocusListener, 
																MouseListener   
{

	private int hiddenx, hiddeny, userx, usery;
	private ThePanel canvas;
	private JFrame frame;	// 13-feb-27

	public FindCircle ( )   
	{
		hiddenx = (int)(Math.random ( ) * 20) + 1;
		hiddeny = (int)(Math.random ( ) * 20) + 1;
		userx = usery = 1;
	}
	
	public static void main(String[] args) 
	{
		FindCircle fc = new FindCircle();
		fc.Run();
	}


	public void Run ( )   
	{
		frame = new JFrame();			// Create the JFrame
		
		// make program quit as soon as you close the window
		frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
		
		// give the frame a size in pixels
		frame.setSize(500, 600);
		
		// Create the drawing JPanel
		canvas = new ThePanel();
		canvas.setBackground(Color.gray);
		
		// add all the listeners to the panel
		canvas.addFocusListener(this);
		canvas.addKeyListener(this);
		canvas.addMouseListener(this);
		
		// Add the JPanel to the frame
		frame.getContentPane().add(canvas);
		
		// Make the JFrame visible
		frame.setVisible(true);
	}


	class ThePanel extends JPanel 
	{
		public void paintComponent(Graphics g) 
		{
			super.paintComponent(g);
			g.setColor ( Color.blue );
			for ( int row = 1; row <= 20; row++ )
				for ( int col = 1; col <= 20; col++ )
					g.fillRect ( 20 * col, 20 * row, 20, 20 );
			g.setColor ( Color.red );
			g.fillRect ( 20 * userx, 20 * usery, 20, 20 );
			if ( userx == hiddenx && usery == hiddeny )   
			{
				g.setColor ( Color.red );
				g.drawString ( "YOU FOUND ME!", 20 * hiddenx - 35, 20 * hiddeny - 3 );
				g.setColor ( Color.white );
				g.fillOval ( 20 * hiddenx + 2, 20 * hiddeny + 2, 16, 16 );
			}
		}
	}


	public void focusGained(FocusEvent evt) 
	{
		canvas.repaint();
	}
   
	public void focusLost(FocusEvent evt) 
	{
		canvas.repaint();
	}

	public void mousePressed(MouseEvent evt) 
	{
		canvas.requestFocus();
	}   
   
   public void mouseEntered(MouseEvent evt) { }
	public void mouseExited(MouseEvent evt) { }
	public void mouseReleased(MouseEvent evt) { }
	public void mouseClicked(MouseEvent evt) { }
   
	public void keyTyped ( KeyEvent e )   {}

	public void keyPressed ( KeyEvent e )   
	{
		int value = e.getKeyCode();
		if ( value == KeyEvent.VK_DOWN )
			usery++;
		else if ( value == KeyEvent.VK_UP )
			usery--;
		else if ( value == KeyEvent.VK_RIGHT )  
			userx++;
		else if ( value == KeyEvent.VK_LEFT )   
			userx--;
		if ( userx > 20 )
			userx = 1;
		if ( usery > 20 )
			usery = 1;
		if ( userx < 1 )
			userx = 20;
		if ( usery < 1 )
			usery = 20;
		canvas.repaint ( );
	}
	
	public void keyReleased ( KeyEvent e )   {}
}