d = 1;

​

t = 0;

​

background_color = [101,66,244]; // black

rose_color = [221,55,63]; // gray

​

function draw() {

  k = n / d;

​

  beginShape();

    r = 200 * cos(k * t);

    x = r * cos(t);

    y = r * sin(t);

    drawPoint(x, y, rose_color);

  endShape(CLOSE);

  t += 0.01;

  }