balls

void mouseClicked() {
  for (int i=0; i<noCircles; i++) {
    float x = width/2 + sin(radians(frameCount*speed[i] ) + phase[i])* 200;
    if (dist(x, y[i], mouseX, mouseY) < 50) {
      if (speed[i]>0) { // if the circle is moving, stop it
        speed[i] = 0;
        phase[i] = 0;
      } else {  // if the circle is not moving, restart it
        speed[i] = random(5);
        phase[i] = random(TWO_PI);
      }
    }
  }
}