createCanvas(720, 400);

}

​

function draw() {

  background(102);

​

  push();

  if (mouseIsPressed) {

    fill(mouseX, 0, mouseY) }

  translate(width * 0.2, height * 0.5);

  rotate(frameCount / mouseX);

  star(0, 0, 5, 70, 3);

  pop();

​

  push();

  if (mouseIsPressed) {

    fill(mouseY,mouseX,0) }

  translate(width * 0.5, height * 0.5);

  rotate(frameCount / 50.0);

  star(0, 0, 80, mouseY-100, 40);

  pop();

​

  push();

  if (mouseIsPressed) {

    fill(0, mouseY, mouseX) }

  translate(width * 0.8, height * 0.5);

  rotate(frameCount / -mouseY);

  star(0, 0, 30, 70, 5);

  pop();

}

​

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);

}

​