import java.awt.Color;
import java.awt.Frame;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.Image;
import java.awt.Toolkit;
import java.awt.event.MouseEvent;
import java.awt.event.MouseListener;
import java.awt.image.BufferedImage;
import java.awt.image.FilteredImageSource;
import java.awt.image.ImageFilter;
import java.awt.image.ImageProducer;
import java.awt.image.RGBImageFilter;
import java.io.IOException;
import java.net.MalformedURLException;
import java.net.URL;

import javax.imageio.ImageIO;
import javax.swing.JComponent;
import javax.swing.JFrame;

/**
 * 
 */

/**
 * @author Donald Yessick
 *
 */
public class PiDarts extends JComponent implements MouseListener {
	
	final int MAX_NUMBER_OF_DARTS = 100000;
	
	private static BufferedImage dartBoard, dart; //images
	private static URL urlDartBoard, urlDart; //urls for images

	public PiDarts(){
		try {
			urlDartBoard = new URL(
					"http://dyessick.com/Coastal/Spring2008/csci140lab/images/dartboard.PNG");
			urlDart = new URL(
					"http://dyessick.com/Coastal/Spring2008/csci140lab/images/dart.PNG");

			dartBoard = makeColorTransparent(ImageIO.read(urlDartBoard), new Color(0, 0, 0));
			dart = makeColorTransparent(ImageIO.read(urlDart), new Color(255, 255, 255));

		} catch (MalformedURLException badUrl) {
			badUrl.printStackTrace();
			System.out.println("ABORTING: " + badUrl.toString());
			System.exit(0);
		} catch (IOException ioError) {
			ioError.printStackTrace();
			System.out.println("ABORTING: " + ioError.toString());
			System.exit(0);
		} catch (Exception otherError) {// this alone is sufficient
			otherError.printStackTrace();
			System.out.println("ABORTING: " + otherError.toString());
			System.exit(0);
		}
	}
	
	public static void main(String[] args) {

		PiDarts piDart = new PiDarts();
		JFrame frame = piDart.getWindow();
		frame.setVisible(true);		
			piDart.againAndAgain();
	
}
	JFrame getWindow() {
		// this is the lab8 object
		JFrame window = new JFrame(this.toString());
		window.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
		int dim = Math.min(this.getToolkit().getScreenSize().width, this.getToolkit().getScreenSize().height);
	    window.setSize(dim-30,dim);
		window.setContentPane(this);
		window.addMouseListener(this);
		return window;
	}

public void paint(Graphics graphics){
	Graphics2D g = (Graphics2D)(graphics);
	
	g.drawImage(
			//the image
			dartBoard,
			//top left coordinate to place image
			0,0, 
			////bottom right coordinate to scale image
			getWidth(), getHeight(),
			//where to start in the image --you can choose part of the image
			0, 0, 
			//where to end in the image --you can choose part of the image
			dartBoard.getWidth(),dartBoard.getHeight(),
			//transparent fill color, e.g. Color.YELLOW, leave as null, or omit to leave transparent
			null,
			//ImageObserver -- null will do -- can be used to alert when
			null
		); 

}
public void againAndAgain(){
	while (true) {
		int count = 4;
		while (count < MAX_NUMBER_OF_DARTS) {
			throwDarts(count);
			try {
				Thread.sleep(3000); //wait 3 seconds
			} catch (InterruptedException exception) {
				exception.printStackTrace();
			}
			repaint();
			try {
				Thread.sleep(1000); //wait 1 seconds (this allows screen to paint)
			} catch (InterruptedException exception) {
				exception.printStackTrace();
			}
			count *= 4; //let count grow
		}
	}
}
public void throwDarts(int numThrows){
	Graphics graphics = this.getGraphics();
		Graphics2D g = (Graphics2D)(graphics);	
	int throwsLeft = numThrows;
	while (throwsLeft > 0){
		double dx = Math.random();
		double dy = Math.random();
		int x = (int)(getWidth()*dx);
		int y = (int)(getHeight()*dy);
		int scale = (int) (Math.max(1, .5*Math.log(numThrows)));
		x-=5; 
		y-=10; //tip is not at top of pic
		g.drawImage(
				//the image
				dart,
				//top left coordinate to place image
				x,y, 
				////bottom right coordinate to scale image
				x+dart.getWidth()/scale, y+dart.getHeight()/scale,
				//where to start in the image --you can choose part of the image
				0, 0, 
				//where to end in the image --you can choose part of the image
				dart.getWidth(),dart.getHeight(),
				//transparent fill color, e.g. Color.YELLOW, leave as null, or omit to leave transparent
				null,
				//ImageObserver -- null will do -- can be used to alert when
				null
			); 
		
		throwsLeft--;
		
		try {
			Thread.sleep(7000/numThrows);
		} catch (InterruptedException exception) {
			exception.printStackTrace();
		}
		
	}
	
	
}
public String toString(){
	return "Pi by Darts";
}
public void wait(int time){
	try {
		Thread.sleep(time);
	} catch (InterruptedException exception) {
		exception.printStackTrace();
	}
}

public void throwDart(int x, int y){
	Graphics graphics = this.getGraphics();
		Graphics2D g = (Graphics2D)(graphics);	
		y-=5; //tip is not at top of pic
		g.drawImage(
				//the image
				dart,
				//top left coordinate to place image
				x,y, 
				////bottom right coordinate to scale image
				x+2*dart.getWidth(), y+2*dart.getHeight(),
				//where to start in the image --you can choose part of the image
				0, 0, 
				//where to end in the image --you can choose part of the image
				dart.getWidth(),dart.getHeight(),
				//transparent fill color, e.g. Color.YELLOW, leave as null, or omit to leave transparent
				null,
				//ImageObserver -- null will do -- can be used to alert when
				null
			); 			
}
public static BufferedImage makeColorTransparent(BufferedImage bim,
		final Color color) {
	ImageFilter filter = new RGBImageFilter() {
		// the color we are looking for... Alpha bits are set to opaque
		public int markerRGB = color.getRGB() | 0xFF000000;

		public final int filterRGB(int x, int y, int rgb) {
			if ((rgb | 0xFF000000) == markerRGB) {// Mark the alpha bits
													// as zero - transparent
				return 0x00FFFFFF & rgb;
			} else {// nothing to do
				return rgb;
			}
		}
	};
	ImageProducer ip = new FilteredImageSource(bim.getSource(), filter);
	Image im = Toolkit.getDefaultToolkit().createImage(ip);
	return convert(im);
}
static public BufferedImage convert(Image im) {
	BufferedImage bi = new BufferedImage(im.getWidth(null), im
			.getHeight(null), BufferedImage.TYPE_4BYTE_ABGR);
	Graphics bg = bi.getGraphics();
	bg.drawImage(im, 0, 0, null);
	bg.dispose();
	return bi;
}
/* required for for mouse listener */
public void mouseEntered(MouseEvent arg0) {}
public void mouseExited(MouseEvent arg0) {}
public void mousePressed(MouseEvent arg0) {}
public void mouseReleased(MouseEvent arg0) {}
public void mouseClicked(MouseEvent mouseEvent) {}

}