from polycalc import *
screen_w, screen_h, clear_screen_init, set_buffer, show_exit = get_infos(("w","h","cli","sb","she"))
get_infos = None

try:
  import turtle
  turtle.hideturtle()
  turtle.speed(0)
  turtle.pensize(1)
except ImportError:
  from ce_turtl import turtle
  turtle.speed(1)
  turtle.pensize(0)
from math import sqrt

def sierp(n, l):
  a, r = 60, 1
  if n <= 0:
    for i in range (3):
      turtle.fd(l)
      turtle.left(a * 2)
  else:
    l /= 2
    n -= 1
    sierp(n, l)
    turtle.fd(l)
    sierp(n, l)
    turtle.bk(l)
    turtle.left(a)
    turtle.fd(l)
    turtle.right(a)
    r += 3 * sierp(n, l)
    turtle.left(a)
    turtle.bk(l)
    turtle.right(a)
  return r

def rotsierp(n=6, n0=0, s=1, h=192, m=3):
  r = 0
  l = (h - m - m*sqrt(3)) / sqrt(3)
  turtle.penup()
  turtle.left(90)
  turtle.fd(m / 2)
  turtle.right(90)
  for k in range(n0, n0 + n):
    turtle.pendown()
    t = sierp(k,l)
    turtle.penup()
    turtle.right(90)
    turtle.fd(m)
    turtle.left(30)
    r += t
  return r

set_buffer()
clear_screen_init()
t = rotsierp(6, 0, 1, screen_h)
show_exit()