jluserov_generativedesign/libro03_circulocreciendo/libro03_circulocreciendo.pde
int diam = 10;
float centX, centY;
void setup() {
  size(500, 300);
  frameRate(24);
  smooth();
  background(180);
  centX = width/2;
  centY = height/2;
  stroke(0);
  strokeWeight(5);
  fill(255, 50);
}
void draw() {
  if (diam <= 400) {
    background(180);
    ellipse(centX, centY, diam, diam);
    diam += 10;
  }
}
