41 lines
729 B
Python
41 lines
729 B
Python
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from uturtle import (
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umonsTurtle, wait,
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moveForward, moveBackward,
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turnLeft, turnRight,
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dropPen, usePen)
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def arbre(t, x, a, n):
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"""draw a tree
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:t: turtle
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:x: taille du tronc de base
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:a: angle des branches
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:n: profondeur de l'arbre
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"""
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moveForward(t, x)
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arbre_rec(t, x, a, n)
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def arbre_rec(t, x, a, n):
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if n == 0:
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return
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turnLeft(t, a/2)
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moveForward(t, x)
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arbre_rec(t, x*5/6, a*5/6, n-1)
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moveBackward(t, x)
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turnRight(t, a)
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moveForward(t, x)
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arbre_rec(t, x*5/6, a*5/6, n-1)
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moveBackward(t, x)
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turnLeft(t, a/2)
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if __name__ == "__main__":
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turtle = umonsTurtle()
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turnLeft(turtle)
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arbre(turtle, 50, 45, 4)
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wait()
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