createCanvas(400, 400);

  noLoop();

}

// treat the rectangle as a large stroke

​

function draw() {

  x1 = random() * width / 2;

  x2 = (random() * width / 2) +  width / 2;

  x3 = (random() * width / 2) +  width / 2;

  x4 = random() * width / 2;

  y1 = random() * (height / 2);

  y2 = (random() * (height / 2)) + (height / 2);

  y3 = (random() * (height / 2)) + (height / 2);

  y4 = random() * (height / 2);

  noFill();

  quad(x1, y1, x2, y2, x3, y3, x4, y4);

  threshold = 10

  counter = 1

  dx1 = (x4 - x1) / threshold

  dx2 = (x3- x2) / threshold

  dy1 = (y4 - y1) / threshold

  dy2 = (y3 - y2) / threshold

  while(counter < 10){

    line(x1, y1, x2, y2)

    x1 += dx1

    x2 += dx2

    y1 += dy1

    y2 += dy2

    counter += 1

  }

}