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fractal.py
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fractal.py
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#test file
from swampy.TurtleWorld import *
world = TurtleWorld()
bob = Turtle()
print bob
bob.delay=0
def draw(t, length, n):
if n == 0:
return
angle = 45
fd(t, length*n)
lt(t, angle)
draw(t, length, n-1)
rt(t, 2*angle)
draw(t, length, n-1)
lt(t, angle)
bk(t, length*n)
def order(n):
if n%3 == 0:
return 3
elif n%2==0:
return 2
else:
return 1
def fractaln(l,n):
if n == 10:
return
fd(bob, l)
lt(bob,60)
fd(bob,l)
rt(bob,120)
fd(bob,l)
lt(bob,60)
fd(bob,l)
if order(n) == 1:
lt(bob,60)
n=n+1
elif order(n) == 2:
rt(bob,120)
n=n+1
elif order(n) == 3:
lt(bob,60)
n=1
fractaln(l,n)
fractaln(10,1)
def Koch(length):
fd(bob,length)
lt(bob,60)
fd(bob,length)
rt(bob,120)
fd(bob,length)
lt(bob,60)
fd(bob,length)
def fractal(l):
Koch(l/3)
lt(bob,60)
Koch(l/3)
rt(bob,120)
Koch(l/3)
lt(bob,60)
Koch(l/3)
def fractal2(l):
fractal(l/3)
lt(bob,60)
fractal(l/3)
rt(bob,120)
fractal(l/3)
lt(bob,60)
fractal(l/3)
def fractal3(l):
fractal2(l/3)
lt(bob,60)
fractal2(l/3)
rt(bob,120)
fractal2(l/3)
lt(bob,60)
fractal2(l/3)
def fractal4(l):
fractal3(l/3)
lt(bob,60)
fractal3(l/3)
rt(bob,120)
fractal3(l/3)
lt(bob,60)
fractal3(l/3)
def snowflake(l):
fractal4(l)
rt(bob,120)
fractal4(l)
rt(bob,120)
fractal4(l)
rt(bob,120)
wait_for_user()