from turtle import Turtle
import math


turtle = Turtle()
turtle.shape("turtle")


def draw_circle(radius):
    draw_arc(radius, 360)


def draw_arc(radius, angle):
    circle_length = angle / 180 * math.pi * radius
    max_segment_length = 2
    segments = int(max(1, circle_length // max_segment_length))
    segment_length = circle_length / segments
    segment_rotation = angle / segments
    for i in range(segments):
        turtle.forward(segment_length)
        turtle.left(segment_rotation)


def jump_forward(distance):
    turtle.penup()
    turtle.forward(distance)
    turtle.pendown()


def draw_gear(hole_radius, ring_width, pips_height, pips_count, pip_boldness):
    jump_forward(hole_radius)
    turtle.left(90)
    draw_circle(hole_radius)
    turtle.right(90)
    jump_forward(ring_width)

    inner_radius = ring_width + hole_radius
    outter_radius = inner_radius + pips_height

    segment_arc = 360 / pips_count
    pip_arc = pip_boldness * segment_arc
    hole_arc = segment_arc - pip_arc

    turtle.left(90)
    for i in range(pips_count):
        draw_arc(inner_radius, hole_arc)
        turtle.right(90)
        turtle.forward(pips_height)
        turtle.left(90)
        draw_arc(outter_radius, pip_arc)
        turtle.left(90)
        turtle.forward(pips_height)
        turtle.right(90)


turtle.penup()
turtle.goto(0, 0)
turtle.pendown()
draw_gear(20, 40, 15, 8, 0.5)


turtle.penup()
turtle.goto(120, -100)
turtle.pendown()
draw_gear(10, 50, 5, 16, 0.8)


turtle.penup()
turtle.goto(70, 90)
turtle.pendown()
draw_gear(16, 4, 10, 9, 0.2)