/*
	A basic extension of the java.applet.Applet class
 */

import java.awt.*;
import java.applet.*;

public class swirlyMorph extends Applet implements Runnable
{
    int[] xpos ={210,220,230,240,250,260,270,270,270,270,270,270,270,260,250,240,230,220,210,210,210,210,210};
int[] ypos ={120,120,120,120,120,120,120,130,140,150,160,170,170,170,170,170,170,170,170,170,160,150,140};
int points =23;
Thread runner;
int pause = 6;
int gravity = 1;
int bias = 1;
int oldX;
int oldY;
int shiftX=0;
int shiftY=0;
boolean blurry = false;
int redVal = (int)Math.floor((Math.random()*225));
int greenVal= (int)Math.floor((Math.random()*225));
int blueVal = (int)Math.floor((Math.random()*225));
Polygon morph = new Polygon(xpos,ypos,points);
Image workspace;
Graphics offscreen;
	public void init()
	{
		// Take out this line if you don't use symantec.itools.net.RelativeURL or symantec.itools.awt.util.StatusScroller
		symantec.itools.lang.Context.setApplet(this);
	
		// This code is automatically generated by Visual Cafe when you add
		// components to the visual environment. It instantiates and initializes
		// the components. To modify the code, only use code syntax that matches
		// what Visual Cafe can generate, or Visual Cafe may be unable to back
		// parse your Java file into its visual environment.
		//{{INIT_CONTROLS
		setLayout(null);
		setBackground(java.awt.Color.black);
		setForeground(java.awt.Color.white);
		setSize(492,350);
		workspace= createImage(getSize().width,getSize().height);
		offscreen=workspace.getGraphics();
		add(textArea1);
		textArea1.setBounds(12,252,156,85);
		textArea1.append("Welcome to the new improved MorphinPoly.\nClick on the buttons to change speed and direction.\nClick on blur to produce a psychadelic swirl.\nClick and drag within the applet for rapid re positioning.\n\nIan Taylor 24.10.00  " );
		gravDec.setLabel("North");
		add(gravDec);
		gravDec.setBackground(java.awt.Color.black);
		gravDec.setForeground(java.awt.Color.white);
		gravDec.setBounds(216,252,48,22);
		biasDec.setLabel("West");
		add(biasDec);
		biasDec.setBackground(java.awt.Color.black);
		biasDec.setForeground(java.awt.Color.white);
		biasDec.setBounds(192,276,48,22);
		biasInc.setLabel("East");
		add(biasInc);
		biasInc.setBackground(java.awt.Color.black);
		biasInc.setForeground(java.awt.Color.white);
		biasInc.setBounds(240,276,48,22);
		gravInc.setLabel("South");
		add(gravInc);
		gravInc.setBackground(java.awt.Color.black);
		gravInc.setForeground(java.awt.Color.white);
		gravInc.setBounds(216,300,48,22);
		speedDec.setLabel("Fast");
		add(speedDec);
		speedDec.setBackground(java.awt.Color.black);
		speedDec.setForeground(java.awt.Color.white);
		speedDec.setBounds(396,252,48,22);
		stop.setLabel("Pause");
		add(stop);
		stop.setBackground(java.awt.Color.black);
		stop.setForeground(java.awt.Color.white);
		stop.setBounds(372,276,48,22);
		go.setLabel("Go");
		add(go);
		go.setBackground(java.awt.Color.black);
		go.setForeground(java.awt.Color.white);
		go.setBounds(420,276,48,22);
		speedInc.setLabel("Slow");
		add(speedInc);
		speedInc.setBackground(java.awt.Color.black);
		speedInc.setForeground(java.awt.Color.white);
		speedInc.setBounds(396,300,48,22);
		blur.setLabel("Blur");
		add(blur);
		blur.setBounds(300,252,65,22);
		
		//}}
	
		//{{REGISTER_LISTENERS
		SymItem lSymItem = new SymItem();
		blur.addItemListener(lSymItem);
		SymMouse aSymMouse = new SymMouse();
		speedDec.addMouseListener(aSymMouse);
		speedInc.addMouseListener(aSymMouse);
		stop.addMouseListener(aSymMouse);
		go.addMouseListener(aSymMouse);
		gravDec.addMouseListener(aSymMouse);
		gravInc.addMouseListener(aSymMouse);
		biasDec.addMouseListener(aSymMouse);
		biasInc.addMouseListener(aSymMouse);
		//runner.suspend();
		this.addMouseListener(aSymMouse);
		
		
		SymMouseMotion aSymMouseMotion = new SymMouseMotion();
		this.addMouseMotionListener(aSymMouseMotion);
		//}}
	}
	
    

 
	
	//{{DECLARE_CONTROLS
	java.awt.TextArea textArea1 = new java.awt.TextArea("",0,0,TextArea.SCROLLBARS_VERTICAL_ONLY);
	java.awt.Button gravDec = new java.awt.Button();
	java.awt.Button biasDec = new java.awt.Button();
	java.awt.Button biasInc = new java.awt.Button();
	java.awt.Button gravInc = new java.awt.Button();
	java.awt.Button speedDec = new java.awt.Button();
	java.awt.Button stop = new java.awt.Button();
	java.awt.Button go = new java.awt.Button();
	java.awt.Button speedInc = new java.awt.Button();
	java.awt.Checkbox blur = new java.awt.Checkbox();
	//}}
	
	 public void paint(Graphics screen){
	    offscreen.setColor(Color.black);
	    if(blurry==false){
	    offscreen.fillRect(0,0,getSize().width,getSize().height);
        }
        offscreen.setColor(new Color(redVal,greenVal,blueVal));
        offscreen.fillPolygon(xpos,ypos,points);
        screen.drawImage(workspace,0,0,this);
    }
	   public void start(){
        if (runner == null){
            runner = new Thread(this);
            runner.start();
        }
    }

    public void run(){
        int redShift=1;
        int greenShift=3;
        int blueShift=5;
         try{Thread.sleep(2000);}
                catch(InterruptedException e){}
       while (true){
        if((redVal>=254)||(redVal<=0))redShift*=-1;
        redVal+=redShift;
        if((greenVal>=252)||(greenVal<=2))greenShift*=-1;
        greenVal+=greenShift;
        if((blueVal>=250)||(blueVal<=5))blueShift*=-1;
        blueVal+=blueShift;
        
      movePoints();
        repaint();
            
        }
    }
    
    public void stop(){
        if (runner!= null){
            runner.stop();
            runner = null;
        }
    }
        public void movePoints(){
        
        for (int i = 0; i<points;i++){
                xpos[i]=xpos[i]+(int)Math.floor((Math.random()*3)-bias)+shiftX;
                if (xpos[i]<0)xpos[i] = xpos[i]+50;
                if (xpos[i]>getSize().width) xpos[i]-= 50; 
                ypos[i]=ypos[i]+(int)Math.floor((Math.random()*3)-gravity)+shiftY;
                if (ypos[i]<0)ypos[i] = ypos[i]+50;
                if (ypos[i]>(getSize().height)-100) ypos[i]-=50 ;
                
                try{Thread.sleep(pause);}
                catch(InterruptedException e){}
         
        }
    }
    
public void update(Graphics screen){
  paint(screen);
  }
	

	class SymItem implements java.awt.event.ItemListener
	{
		public void itemStateChanged(java.awt.event.ItemEvent event)
		{
			Object object = event.getSource();
			if (object == blur)
				blur_ItemStateChanged(event);
		}
	}

	void blur_ItemStateChanged(java.awt.event.ItemEvent event)
	{
		// to do: code goes here.
		if(blur.getState()==false)blurry=false;
		if(blur.getState()==true)blurry=true;
			 
	}

	class SymMouse extends java.awt.event.MouseAdapter
	{
		public void mouseReleased(java.awt.event.MouseEvent event)
		{
			Object object = event.getSource();
			if (object == swirlyMorph.this)
				swirlyMorph_MouseReleased(event);
		}

		public void mousePressed(java.awt.event.MouseEvent event)
		{
			Object object = event.getSource();
			if (object == swirlyMorph.this)
				swirlyMorph_MousePressed(event);
		}

		

		public void mouseClicked(java.awt.event.MouseEvent event)
		{
			Object object = event.getSource();
			if (object == speedDec)
				speedDec_MouseClicked(event);
			else if (object == speedInc)
				speedInc_MouseClicked(event);
			else if (object == stop)
				stop_MouseClicked(event);
			else if (object == go)
				go_MouseClicked(event);
			else if (object == gravDec)
				gravDec_MouseClicked(event);
			else if (object == gravInc)
				gravInc_MouseClicked(event);
			else if (object == biasDec)
				biasDec_MouseClicked(event);
			else if (object == biasInc)
				biasInc_MouseClicked(event);
			
		}
	}

	void speedDec_MouseClicked(java.awt.event.MouseEvent event)
	{
		// to do: code goes here.
		pause--;
		if (pause < 1) pause=1;
			 
	}

	void speedInc_MouseClicked(java.awt.event.MouseEvent event)
	{
		// to do: code goes here.
		pause++;
			 
	}

	void stop_MouseClicked(java.awt.event.MouseEvent event)
	{
		// to do: code goes here.
		runner.suspend();
			 
	}

	void go_MouseClicked(java.awt.event.MouseEvent event)
	{
		// to do: code goes here.
		runner.resume();
			 
	}

	void gravDec_MouseClicked(java.awt.event.MouseEvent event)
	{
		// to do: code goes here.
		gravity++;
			 
	}

	void gravInc_MouseClicked(java.awt.event.MouseEvent event)
	{
		// to do: code goes here.
		gravity--;
			 
	}

	void biasDec_MouseClicked(java.awt.event.MouseEvent event)
	{
		// to do: code goes here.
		bias++;
			 
	}

	void biasInc_MouseClicked(java.awt.event.MouseEvent event)
	{
		// to do: code goes here.
		bias--;
			 
	}



	class SymMouseMotion extends java.awt.event.MouseMotionAdapter
	{
		public void mouseDragged(java.awt.event.MouseEvent event)
		{
			Object object = event.getSource();
			if (object == swirlyMorph.this)
				swirlyMorph_MouseDragged(event);
		}
	}

	void swirlyMorph_MouseDragged(java.awt.event.MouseEvent event)
	{
		// to do: code goes here.
		shiftX=event.getX()-oldX;
		shiftY=event.getY()-oldY;
		
	}

	void swirlyMorph_MousePressed(java.awt.event.MouseEvent event)
	{
		// to do: code goes here.
		oldX=event.getX();
		oldY=event.getY();
			 
		
			 
	}

	void swirlyMorph_MouseReleased(java.awt.event.MouseEvent event)
	{
		// to do: code goes here.
		shiftX=0;
		shiftY=0;
			 
	}
}