​

function setup() {

  createCanvas(400, 400);

  background(220);

  const c45 = cos(PI/4);

  function sq(x,y,r,c = 0,s = 0.7,wgt = 3, col = color(244,96,54)) {

    strokeWeight(wgt);

    stroke(col);

    noFill();

    const wdt = c45 * r * 2;

    const wdt2 = wdt * 0.5;

    square(x - wdt2, y - wdt2, wdt);

    if(c > 0) {

      cc(x,y,wdt,c-1, s, wgt * s);

    }

  }

  function cc(x,y,d,c = 0, s = 0.7,wgt = 3, col = color(244,96,54)) {

    strokeWeight(wgt);

    stroke(col);

    noFill();

    circle(x,y,d);

    if(c > 0) {

      sq(x,y,d/2,c-1, s, wgt * s);

    }

  }

  //sq(200,200,200,30,0.9);

  cc(200,200,400,30,0.9);

}

​

function draw() {

}