package org.woehlke.computer.kurzweil.tabs.sierpinskitriangle;
   
   import org.woehlke.computer.kurzweil.tabs.sierpinskitriangle.SierpinskiTriangleModel;
   import org.woehlke.computer.kurzweil.tabs.sierpinskitriangle.SierpinskiTriangleTab;
   
   /**
    * Mandelbrot Set drawn by a Turing Machine.
    *
    * (C) 2006 - 2015 Thomas Woehlke.
   * https://thomas-woehlke.blogspot.com/2016/01/mandelbrot-set-drawn-by-turing-machine.html
   * @author Thomas Woehlke
   *
   * Date: 05.02.2006
   * Time: 00:36:20
   */
  public class SierpinskiTriangleController extends Thread implements Runnable {
  
      private final int THREAD_SLEEP_TIME = 1;
      private volatile SierpinskiTriangleModel mandelbrotModel;
      private volatile SierpinskiTriangleTab frame;
      private volatile Boolean goOn;
  
      public SierpinskiTriangleController(SierpinskiTriangleModel model, SierpinskiTriangleTab frame) {
          this.frame = frame;
          this.mandelbrotModel = model;
          goOn = Boolean.TRUE;
      }
  
      public void run() {
          boolean doIt;
          do {
              synchronized (goOn) {
                  doIt = goOn.booleanValue();
              }
              if(this.mandelbrotModel.step()){
                  frame.getCanvas().repaint();
              }
              try { sleep(THREAD_SLEEP_TIME); }
              catch (InterruptedException e) { }
          }
          while (doIt);
      }
  
      public void exit() {
          synchronized (goOn) {
              goOn = Boolean.FALSE;
          }
      }
  
  }