49 lines
1.3 KiB
Python
49 lines
1.3 KiB
Python
# Runestone.Academy thinkcspy course
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# Chapter 16
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# Problem 4
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import turtle
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import random
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def drawTriangle(points,color,myTurtle):
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myTurtle.fillcolor(color)
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myTurtle.up()
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myTurtle.goto(points[0][0],points[0][1])
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myTurtle.down()
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myTurtle.begin_fill()
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myTurtle.goto(points[1][0],points[1][1])
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myTurtle.goto(points[2][0],points[2][1])
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myTurtle.goto(points[0][0],points[0][1])
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myTurtle.end_fill()
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def getMid(p1, p2, delta):
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return ( (((p1[0]+p2[0]) / 2) + random.uniform(-delta, delta)),
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(((p1[1] + p2[1]) / 2) + random.uniform(-delta, delta)))
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def fractalMnt(points,degree,myTurtle):
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colormap = ['floralwhite','brown','darkgoldenrod','olive','maroon']
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drawTriangle(points,colormap[degree],myTurtle)
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if degree > 0:
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mid1 = getMid(points[0], points[1], 10)
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mid2 = getMid(points[0], points[2], 10)
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mid3 = getMid(points[1], points[2], 10)
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fractalMnt([points[0], mid1, mid2], degree-1, myTurtle)
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fractalMnt([points[1], mid1, mid3], degree-1, myTurtle)
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fractalMnt([points[2], mid3, mid2], degree-1, myTurtle)
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fractalMnt([mid1, mid3, mid2], degree-1, myTurtle)
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def main():
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myTurtle = turtle.Turtle()
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myWin = turtle.Screen()
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myPoints = [[-100,-50],[0,100],[100,-50]]
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fractalMnt(myPoints,4,myTurtle)
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myWin.exitonclick()
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main()
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