/*  Daniel Wyszynski 
    Center for Applied Large-Scale Computing (CALC) 
    04-12-95 

    Test of text animation.

    kwalrath: Changed string; added thread suspension. 5-9-95
*/
import java.awt.Graphics;
import java.awt.Font;

public class NervousText extends java.applet.Applet implements Runnable {
	protected	char separated[];
	protected	String s = null;

	Thread killme = null;	
	int i;
	int x_coord = 0, y_coord = 0;
	String num;
	int speed=35;
	int counter =0;
	boolean threadSuspended = false; //added by kwalrath

public void init() {
	s = getParameter("text");
	if (s == null) {
	    s = "HotJava";
	}

	separated =  new char [s.length()];
	s.getChars(0,s.length(),separated,0);
//	resize(150,50);
	setFont(new Font("TimesRoman",Font.BOLD,36));
 }

public void start() {
	if(killme == null) 
	{
        killme = new Thread(this);
        killme.start();
	}
 }

public void stop() {
	killme = null;
 }

public void run() {
	while (killme != null) {
	try {Thread.sleep(100);} catch (InterruptedException e){}
	repaint();
	}
	killme = null;
 }

public void paint(Graphics g) {
	for(i=0;i<s.length();i++)
	{
	x_coord = (int) (Math.random()*10+15*i);
	y_coord = (int) (Math.random()*10+36);
	g.drawChars(separated, i,1,x_coord,y_coord);
	}
 }
 
/* Added by kwalrath. */
public boolean mouseDown(java.awt.Event evt, int x, int y) {
        if (threadSuspended) {
            killme.resume();
        }
        else {
            killme.suspend();
        }
        threadSuspended = !threadSuspended;
    return true;
    }

public boolean running (){
	return killme != null && !threadSuspended;
    }
}

import java.awt.Color;
import java.awt.Graphics;

//import NervousText;
// Had to change it to make s & separated protected.

public class NervousChange extends NervousText {

	Color	foreground;

public void start() {
	super.start();
	String poem[] = new String[4];
		poem[0] = "Roses are Red";
		poem[1] = "Violets are Blue";
		poem[2] =  "But some are YELLOW";
		poem[3] =  "Boo Hoo";
	new MessageThread ("poem", this, poem).start();
	Color colours[] = new Color[4];
	colours[0] = Color.red;
	colours[1] = Color.blue;
	colours[2] = Color.green;
	colours[3] = Color.yellow.darker();
    new ColourThread ("rainbow", this, colours).start();
 }
public void setString (String aString) {
        s = aString;
	separated =  new char [s.length()];
	s.getChars(0,s.length(),separated,0);
        System.out.println("setString called with " + aString);
        repaint();
        }

public void setColour (Color aColour){
	foreground = aColour;
	repaint();
	}

public void paint(Graphics g){
	g.setColor (foreground);
	super.paint(g);
	}

}
/*
class TwoThreadsTest {
                   public static void main (String[] args) {
                       new SimpleThread("Jamaica").start();
                       new SimpleThread("Fiji").start();
                   }
               }
*/

//import NervousChange;

class MessageThread extends Thread {

NervousChange myApplet;
//NervousText myApplet;
String[] myLines;

public MessageThread(String str, NervousChange nc, String[] lines) {
                       super(str);
		myApplet = nc;
		myLines = lines;
}

public void run() {
     try {						// see initial message
          sleep((int)(Math.random() * 8000));
      } catch (InterruptedException e) {}
	while (myApplet.running()) {  // was getThered
        for (int i = 0; i < myLines.length; i++) {
            myApplet.setString (myLines[i]);
            try {
                sleep((int)(Math.random() * 3000));
            } catch (InterruptedException e) {}
        } //for
	} //while
                       System.out.println("DONE! " + getName());
  }   //run

}     //end class MessageThread 
/*
class TwoThreadsTest {
                   public static void main (String[] args) {
                       new SimpleThread("Jamaica").start();
                       new SimpleThread("Fiji").start();
                   }
               }
*/

//import NervousChange;
import java.awt.Color;
class ColourThread extends Thread {

NervousChange myApplet;
Color[] myColours;

public ColourThread(String str, NervousChange nc, Color[] lines) {
                       super(str);
		myApplet = nc;
		myColours = lines;
}

public void run() {
	int i= 0;
	while (myApplet.running()) {
        if (++i >= myColours.length) {i = 0;}
            myApplet.setColour (myColours[i]);
            try {
                sleep((int)(Math.random() * 9000));
            } catch (InterruptedException e) {}
	} //while
                       System.out.println("DONE! " + getName());
  }   //run

}     //end class ColourThread