Adafruit_CircuitPython_turtle/examples/turtle_koch.py
2021-01-12 14:28:40 -05:00

39 lines
762 B
Python

# SPDX-FileCopyrightText: 2021 ladyada for Adafruit Industries
# SPDX-License-Identifier: MIT
import board
from adafruit_turtle import turtle
def f(side_length, depth, generation):
if depth != 0:
side = lambda: f(side_length / 3, depth - 1, generation + 1)
side()
turtle.left(60)
side()
turtle.right(120)
side()
turtle.left(60)
side()
turtle = turtle(board.DISPLAY)
unit = min(board.DISPLAY.width / 3, board.DISPLAY.height / 4)
top_len = unit * 3
print(top_len)
turtle.penup()
turtle.goto(-1.5 * unit, unit)
turtle.pendown()
num_generations = 3
top_side = lambda: f(top_len, num_generations, 0)
top_side()
turtle.right(120)
top_side()
turtle.right(120)
top_side()
while True:
pass