createCanvas(600, 600)

​

  rectMode(CENTER)

  angleMode(DEGREES)

​

  noFill()

  //noLoop()

  smooth()

}

​

function draw() {

  background(252)

​

  translate(width / 2, height / 2)

  //kirukuMuruku()

  rotate(-frameCount * 0.5)

  kirukuMuruku()

  rotate(2 * frameCount * 0.5)

  kirukuMuruku()

}

​

function kirukuMuruku() {

  ellipse(0, 0, 300)

  rect(0, 0, 300, 300)

  rect(0, 0, 300 / sqrt(2), 300 / sqrt(2))

  line(0, -150, 0, 150)

  line(-150, 0, 150, 0)

  line(150 * cos(-135), 150 * sin(-135), 150 * cos(45), 150 * sin(45))

  line(150 * cos(-45), 150 * sin(-45), 150 * cos(135), 150 * sin(135))

}