49 lines
1 KiB
Python
49 lines
1 KiB
Python
# SPDX-FileCopyrightText: 2021 ladyada for Adafruit Industries
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# SPDX-License-Identifier: MIT
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import board
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from adafruit_turtle import turtle
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def hilbert2(step, rule, angle, depth, t):
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if depth > 0:
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a = lambda: hilbert2(step, "a", angle, depth - 1, t)
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b = lambda: hilbert2(step, "b", angle, depth - 1, t)
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left = lambda: t.left(angle)
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right = lambda: t.right(angle)
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forward = lambda: t.forward(step)
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if rule == "a":
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left()
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b()
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forward()
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right()
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a()
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forward()
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a()
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right()
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forward()
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b()
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left()
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if rule == "b":
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right()
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a()
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forward()
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left()
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b()
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forward()
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b()
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left()
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forward()
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a()
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right()
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turtle = turtle(board.DISPLAY)
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turtle.penup()
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turtle.setheading(90)
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turtle.goto(-80, -80)
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turtle.pendown()
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hilbert2(5, "a", 90, 5, turtle)
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while True:
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pass
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