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sierpinski.py
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sierpinski.py
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import turtle
import math
def teleport(koopa, pos):
koopa.hideturtle()
koopa.up()
koopa.setpos(pos)
koopa.down()
koopa.showturtle()
def draw_triangle(koopa, pos, length, angle, color):
teleport(koopa, pos)
koopa.setheading(0)
koopa.right(30)
koopa.fill(True)
koopa.fillcolor(color)
for i in range(3):
koopa.forward(length)
koopa.right(angle)
koopa.fill(False)
def sierpinski(koopa, pos, length, level):
draw_triangle(koopa, pos, length, -120, "white")
if level > 0:
sierpinski(koopa, (pos[0], pos[1] + length * math.sin(math.radians(60))), length/2, level-1)
sierpinski(koopa, (pos[0]-length/2, pos[1]), length/2, level-1)
sierpinski(koopa, (pos[0]+length/2, pos[1]), length/2, level-1)
def main():
window = turtle.Screen()
window.bgcolor("black")
turtle.mode("logo")
koopa = turtle.Turtle()
koopa.shape("classic")
koopa.color("#028482","#028482")
koopa.speed(1000)
# The board/background
draw_triangle(koopa, (-300,-300), 600, 120, "#028482")
# The actual Sierpinski Triangle
sierpinski(koopa, (0, -300), 300, 3)
window.exitonclick()
main()