import java.util.Vector;
import java.awt.*;

public class producer extends Thread
{  
   static final int MAXQUEUE = 5;
   private Vector messages=new Vector();
   private int nextloc=1;
   prodcon parent;
   Graphics g;
   Frame info;
   TextArea infoarea;
   
   public producer(prodcon initparent)
   {
      parent=initparent;
      g=parent.getGraphics();
      info=new Frame("Watch Production");
      info.resize(150, 50); 
      // Create and use a BorderLayout manager with margins
      info.setLayout(new BorderLayout(15, 15));

      infoarea = new TextArea();
      // No typing in output field...
      infoarea.setEditable(false);
      info.add("Center", infoarea);   
      info.pack();
      info.show();  
   }
   
   public void run()
   {
      try
      {
         while (true)
         {
            putMessage();
            sleep(650);
         }
      }
      catch(InterruptedException e){}
   }
   
   private synchronized void putMessage()
      throws InterruptedException 
   {
      while (messages.size() == MAXQUEUE)
         wait();
      int loc=messages.size();
      messages.addElement("Vader "+loc);
      System.out.println("added "+loc);
      infoarea.appendText("Produced vader "+(loc+1)+"\n");
      putimage(loc,parent.fighter);
      // put this if here to make simulation run nicer
      if ((loc+1)==5) {sleep(1500);}
      notify();
   }
   
   // called by consumer
   public synchronized String getMessage()
      throws InterruptedException
   {
      while (messages.size()==0)
         wait();
      int loc=messages.size();
      String message=(String)messages.firstElement();
      infoarea.appendText("Destroyed vader "+loc+"\n");
      messages.removeElement(message);
      putimage(loc-1,parent.poof);
      notify();
      return message;
   }
   
   public synchronized void putimage(int where,Image whichimage)
   {
      if (where==0)
      {
         g.drawImage(whichimage,0,0,parent);
      }
      else
      {
         if (where==1)
         {
            g.drawImage(whichimage,150,0,parent);
         }
         else
         {
            if (where==2)
            {
               g.drawImage(whichimage,0,120,parent);
            }
            else
            {
               if (where==3)
               {
                  g.drawImage(whichimage,150,120,parent);
               }
               else
               {
                  g.drawImage(whichimage,60,240,parent);
               }
            }
         }
      }
   }
}