def waterwheel(edges, size):
  angle = 210.0
  decoration = size / 2
  for i in range(0, edges):
    move(size)
    square(decoration)
    turn(angle)

def waterwheel(edges, size):
  angle = 360 / edges
  decoration = size /3
  for i in range(0, edges):
    move(size)
    triangle(decoration)
    turn(angle)

def waterwheel(edges, size):
  angle = 360 / edges
  decoration = size / 2
  for i in range(0, edges):
    move(size)
    shape(decoration, 3)
    turn(angle)

def waterwheel(edges, size):
  angle = 400 / edges
  decoration = size / 6
  for i in range(0, edges):
    move(size)
    square(decoration)
    turn(angle)

def waterwheel(edges, size): #Drawing waterwheel
  angle = 360 / edges
  decoration = size / 2
  for i in range(0, edges):
    move(size)
    square(decoration)
    turn(angle)

def board(side):
  for i in range(0,8):
    row(side)
    move(side)
    turn(-90)
    move(side*8)
    turn(90)

def spiral(size):
  
  if size > 300:
    return
  
  move(size)
  turn(60)
  spiral(size + 5)

def spiral(size):
  
  if size > 300: #terminate after 300 rounds
    return
  
  move(size)
  turn(60) #interior angle
  spiral(size + 5) #make new side slightly bigger

def spiral(size):
  
  if size > 300:
    return
  
  move(size)
  turn(90)
  spiral(size + 10)

def spiral(size):
  
  if size > 500:
    return
  
  move(size)
  turn(91)
  spiral(size + 5)

def waterwheel(edges, size):
  angle = 360 / edges
  decoration = size / 4
  for i in range(0, edges):
    move(size)
    #square(decoration)
    circle(500)
    turn(angle)

def blacksquare(size):
  
  if size > 300:
    return
  
  move(size)
  turn(90)
  blacksquare(size + 0.5)

def spiral(size):
  
  if size > 300:
    return
  
  color("RGB(255,10,0)")
  move(size)
  turn(120)
  spiral(size + 8)

def segment(scale, detail):
  
  if detail == 0:
    None
  else:
    for i in range(0, 3):
      move(scale)
      turn(120)
      segment(scale / 2, detail - 1)

def handle_frame():
    global d

    for x in range(10):
        d += 1

        color("hsl(%d,100%%,50%%)" % d)
        move(random() * 5)
        turn(random() * 90 - 45)

def trifrac(level, scale):
  if level == 0:
    return
  
  tri(scale)
  for i in range(3):
    move(scale)
    turn(120)
    trifrac(level - 1, scale/2)

def waterwheel(edges, size):
  angle = 360 / edges
  decoration = size / 1
  dec = size/3
  for i in range(0, edges):
    move(size)
    square(decoration)
    square(dec)
    turn(angle)

def vertical_lines(squaresize):
  for i in range(0,4):
    turn(90)
    move(squaresize)
    turn(-90)
    move(gridsize)
    turn(90)
    move(squaresize)
    turn(90)
    move(gridsize)
    turn(180)

def square(side):
  
  for i in range(0, 4):
    move(side)
    turn(90)
    
  for k in range(0, 8):
    for n in range(0, 8):
     square(50)
     move(50)
  turn(90)
  move(50)

def drawlines(size):
  for i in range(4):
    move(size/8)
    turn(-90)
    move(size)
    turn(90)
    move(size/8)
    turn(90)
    move(size)
    turn(-90)