// --------------------------------------
 public void frameEvent(TCPClient c) {
   // clear the screen
   background(255);
   for (int x = 0; x < client.getMWidth(); x += 100) {
     pushMatrix();
     translate(x, client.getMHeight() / 2);
     stroke(0);
     noFill();
     rotate(angle);
     box(75);
     popMatrix();
   }
   angle += 0.02f;
 }