Trying to Reconstruct Tim Szetela's rotational spirals

rotational_spirals.pyde

# based on work by Tim Szetela
# https://twitter.com/tszetela/status/1330287937808904194?s=20
# result: https://twitter.com/villares/status/1330536893121957904?s=20

def setup():
    size(600, 600)
    fill(240, 240, 200)
    stroke(150, 50, 50)
    strokeWeight(2)
            
def draw():
    background(240, 240, 200)
    translate(40, 100); scale(.75)
    f = frameCount / 50.0
    n = 2
    step = 7
    w, h = 140, 15
    for i in range(0, int(360 * n) + 90, step):
        y, a = i / 1.5, i
        for j in range(3):
            rotated_rect(100 + j * 200, y, w, h, radians(a) + f)
            rotated_rect(200 + j * 200, y, w, h, HALF_PI - radians(a) - f)

def rotated_rect(x, y, w, h, ang):
    push()
    translate(x, y)
    rotate(ang)
    rectMode(CENTER)
    rect(0, 0, w, h)
    pop()