Funzioni ricorsive + mousePressed()

sketch_160804c.pde

/*
 * Funzioni Ricorsive: drawCircle()
 * by Federico Pepe
 *
*/

int rec = 1;

void setup() {
  size(700, 400);
  noFill();
  background(255);
}

void draw() {
  background(255);
  drawCircle(width/2, height/2, width/2, rec);
}

void drawCircle(int x, int y, int radius, int recursion) {
  ellipse(x, y, radius, radius);
  if (recursion > 1) {
    recursion--;
    drawCircle(x + radius/2, y, radius/2, recursion);
    drawCircle(x - radius/2, y, radius/2, recursion);
  }
}

void mousePressed() {
  rec++;
}