RosettaCodeData/Task/Barnsley-fern/Processing-Python-mode/barnsley-fern.processing-py

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size(640, 640)
background(0)
x = 0
y = 0
for _ in range(100000):
xt = 0
yt = 0
r = random(100)
if r <= 1:
xt = 0
yt = 0.16 * y
elif r <= 8:
xt = 0.20 * x - 0.26 * y
yt = 0.23 * x + 0.22 * y + 1.60
elif r <= 15:
xt = -0.15 * x + 0.28 * y
yt = +0.26 * x + 0.24 * y + 0.44
else:
xt = +0.85 * x + 0.04 * y
yt = -0.04 * x + 0.85 * y + 1.60
size(640, 640)
background(0)
x = 0
y = 0
for _ in range(100000):
xt = 0
yt = 0
r = random(100)
if r <= 1:
xt = 0
yt = 0.16*y
elif r <= 8:
xt = 0.20*x - 0.26*y
yt = 0.23*x + 0.22*y + 1.60
elif r <= 15:
xt = -0.15*x + 0.28*y
yt = 0.26*x + 0.24*y + 0.44
else:
xt = 0.85*x + 0.04*y
yt = -0.04*x + 0.85*y + 1.60
x = xt
y = yt
m = round(width/2 + 60*x)
n = height-round(60*y)
set(m, n, "#00ff00")
x = xt
y = yt
m = round(width / 2 + 60 * x)
n = height - round(60 * y)
set(m, n, "#00ff00")