from cTurtle import Turtle

def tree(turtle,level,leftTurnAmount,rightTurnAmount):
    # when we are done drawing the tree, the turtle is left in the same
    # position as at the beginning, and facing the same direction
    trunkLength = 5*(level+1)
    turtle.forward(trunkLength)
    if level > 0:
        turtle.left(leftTurnAmount)
        tree(turtle,level-1,leftTurnAmount,rightTurnAmount)
        turtle.right(leftTurnAmount)
        # the turtle is now back to straight up at the top of the trunk
        turtle.right(rightTurnAmount)
        tree(turtle,level-1,leftTurnAmount,rightTurnAmount)
        turtle.left(rightTurnAmount)
    turtle.backward(trunkLength)