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# Geek Gurl Diaries Episode 33: Xmas Special Make Snowflakes with Turtle
# By Carrie Anne Philbin
# https://www.youtube.com/watch?v=DHmeX7YTHBY
import turtle
import random
# setup the window with a background colour
wn = turtle.Screen()
wn.bgcolor("cyan")
# assign a name to your turtle
elsa = turtle.Turtle()
elsa.speed(15)
# create a list of colours
sfcolor = ["white", "blue", "purple", "grey", "magenta"]
# create a function to create different size snowflakes
def snowflake(size):
# move the pen into starting position
elsa.penup()
elsa.forward(10*size)
elsa.left(45)
elsa.pendown()
elsa.color(random.choice(sfcolor))
# draw branch 8 times to make a snowflake
for i in range(8):
branch(size)
elsa.left(45)
# create one branch of the snowflake
def branch(size):
for i in range(3):
for i in range(3):
elsa.forward(10.0*size/3)
elsa.backward(10.0*size/3)
elsa.right(45)
elsa.left(90)
elsa.backward(10.0*size/3)
elsa.left(45)
elsa.right(90)
elsa.forward(10.0*size)
# loop to create 20 different sized snowflakes with different starting co-ordinates
for i in range(20):
x = random.randint(-200, 200)
y = random.randint(-200, 200)
sf_size = random.randint(1, 4)
elsa.penup()
elsa.goto(x, y)
elsa.pendown()
snowflake(sf_size)
# leave the window open until you click to close
wn.exitonclick()