Impulse

function setup() {

  createCanvas(windowWidth, windowHeight);

  background(0);

}

​

function draw() {

  background(0);

​

  fill(227, 45, 84);

  noStroke();

  mil = millis() / 18;

  push();

  translate(width * 0.5, height * 0.5);

  rotate(mil);

  translate(mil, 0);

  star(0, 100, mil / 8, 150, 85);

  pop();

​

  translate(windowWidth / 2, windowHeight / 2);

  rotate(mil);

  translate(mil, 0);

​

}

function star(x, y, radius1, radius2, npoints) {

  let angle = TWO_PI / npoints;

  let halfAngle = angle / 2.0;

  beginShape();

  for (let a = 0; a < TWO_PI; a += angle) {

    let sx = x + cos(a) * radius2;

    let sy = y + sin(a) * radius2;

    vertex(sx, sy);

    sx = x + cos(a + halfAngle) * radius1;

    sy = y + sin(a + halfAngle) * radius1;

    vertex(sx, sy);

  }

  endShape(CLOSE);

}