int centerX = 0;
int centerY = 0;
int radiusX = 60;
int radiusY = 60;
float rotatie = 0;

void setup() {
  size(800, 800);
  smooth();
}

void draw() {
  background(255);



  for (int i = -50; i < width+50; i = i + 35) {

    for (int j = -50; j < width+50; j = j + 35) {
      
      pushMatrix();
      translate(i, j);
      rotate(rotatie+j*(mouseX*.000025)+i*(mouseX*.000025));
      
      strokeWeight(1);
      stroke(0);
      noFill();      
      ellipse(centerX, centerY, radiusX, radiusY);
      
      noStroke();
      fill(0);
      ellipse(radiusX/2, 0, 8, 8);
      
      popMatrix();
    }
  }

  rotatie = rotatie + .1;
  //println(rotatie);
}