snowflake.py

import math
import turtle 

class MyTurtle(object):
    def __init__(self):
        self.turtle = turtle.Turtle()
        self.complex = 1
        self.screen = (self.turtle.window_width(), self.turtle.window_height())
        self.size = 3*self.screen[1]/8


    def draw(self, complex = 1, len = None):
        if len is None:
            len = self.size
        for x in xrange(3):
            self.line(complex, len)
            self.turtle.left(120)

    def line(self, complexity, len):
        if complexity == 1:
            self.turtle.fd(len)
            self.turtle.left(120)
        else:
            self.line(complexity - 1, len/3)
            self.turtle.right(60)
            self.line(complexity - 1, len/3)
            self.turtle.left(120)
            self.line(complexity - 1, len/3)
            self.turtle.right(60)
            self.line(complexity - 1, len/3)

    def reset(self):
        self.turtle.clear()
    
if __name__ == "__main__":
    turt = MyTurtle()
    turt.draw()