Threading (multithreading) in processing, source code example

thread example

ThreadedClass myThread;
int drawCounter;

void setup(){
  myThread = new ThreadedClass(50); //set the thread loop to wait every 50 milliseconds
  drawCounter = 0;
  myThread.start();
}

void draw(){
  println("Draw Loop: " + drawCounter);
  drawCounter++;
}

public class ThreadedClass extends Thread {

  private int wait;
  private int counter;
  private boolean running;
  
  public ThreadedClass (int wt) {
    wait = wt;
    running = false;
  }
  
  public void start() {
    running = true;
    super.start();
  }

  public void run() {
    while (running) {
      //Place whatever you want to run here
      println("Thread Loop: " + counter);
      counter++;
      try {
        sleep((long)(wait));
      }
      catch (Exception e) {
      }
    }
  }

  public void quit()
  {
    running = false;   
    interrupt(); 
    // Now sleep a while to avoid memeory errors 
    try {
      sleep(100l);
    } 
    catch (Exception e) {
    }
  }
}