int y = 250;
int d = 10; //diameter
int n = 5; //recursions

void setup() {
  size(500,500);
  background(0);
  fill(255,50);
  stroke(255);
  smooth();
}

void draw() {
  background(0);
  Curlicue (mouseX, mouseY, mouseY/2, n);
}


void Curlicue(int xpos, int ypos, float diam, int num) {
  ellipse(xpos, ypos, diam, diam);
  if (num > 0) {
  translate(10*num,10*num);
    num = num - 1;
    Curlicue (xpos-num*5, ypos-num*5, diam*num, num);
  }
}