The_Official_Raspberry_Pi_-_Beginner’s_Book_Vol1,_2018 (1)

108 THE OFFICIAL RASPBERRY PI BEGINNER'S GUIDE

Your finished program should look like this:

import turtle

import random

pat = turtle.Turtle()

turtle.Screen().bgcolor("grey")

colours = ["cyan", "purple", "white", "blue"]

pat.penup()

pat.forward( 90 )

pat.left( 45 )

pat.pendown()

def branch():

for i in range( 3 ):

for i in range( 3 ):

pat.forward( 30 )

pat.backward( 30 )

pat.right( 45 )

pat.left( 90 )

pat.backward( 30 )

pat.left( 45 )

pat.right( 90 )

pat.forward( 90 )

for i in range( 8 ):

branch()

pat.left( 45 )

# pat.color(random.choice(colours))

Click on Run and watch the graphics window as Pat draws by following your instructions.

Congratulations: your snowflake now looks a lot more like a snowflake (Figure 5-13)!

5 Figure 5-13: Extra branches make it look like a snowflake