from turtle import Turtle


def broken_line(length, pause, lines):
    for x in range(lines):
        sophia.forward(length)
        sophia.penup()
        sophia.forward(pause)
        sophia.pendown()

def circles(y):
    for x in range(150):
        sophia.circle(y)
        y = y+5
        sophia.right(10)

def draw_square(t,length,width,color):
    t.color(color)
    for x in range(2):
        t.forward(width)
        t.left(90)
        t.forward(length)
        t.left(90)

def filled_square(t,length,width,color):
    t.fillcolor(color)
    t.color(color)
    t.begin_fill()
    for x in range(2):
        t.forward(width)
        t.left(90)
        t.forward(length)
        t.left(90)
    t.end_fill()

def filled_circle(t,y,color):
    t.fillcolor(color)
    t.color(color)
    t.begin_fill()
    t.circle(y)
    t.end_fill()

def draw_mandala(t,y,color):
    for x in range(18):
        draw_square(t,y,color)
        t.left(20)

def draw_triangle(t,y):
    for x in range(3):
        t.left(120)
        t.forward(y)

def draw_target(t,y):
    r = y
    for x in range(2):
        filled_circle(sophia, y,"red")
        y = y - 30
        t.left(90)
        t.forward(r-y)
        r = r - 30
        print("r=",r)
        print("y=",y)
        t.left(270)
        filled_circle(sophia, y,"white")
        y = y - 30
        t.left(90)
        t.forward(r-y)
        r = r - 30
        print("r=",r)
        print("y=",y)
        t.left(270)
    filled_circle(sophia, y,"red")

def ampel(t,y):
    t.backward(70/2)
    length = y
    filled_square(t,length,70,"black")
    t.penup()
    t.forward(70/2)
    t.left(90)
    t.forward(6)
    t.right(90)
    filled_circle(t, 25, "green")
    t.left(90)
    t.forward(y / 3)
    t.right(90)
    filled_circle(t, 25, "yellow")
    t.left(90)
    t.forward(y / 3)
    t.right(90)
    filled_circle(t, 25, "red")

def skyscraper(t):
    t.penup()
    for x in range(5):
        t.backward(100)
        t.left(90)
        t.forward(30)
        t.right(90)
        filled_square(t,42,100,"black")
        t.forward(10)
        t.left(90)
        t.forward(10)
        t.right(90)
        for x in range(3):
            filled_square(t,30,20,"yellow")
            t.forward(30)
    t.backward(100)
    t.left(90)
    t.forward(30)
    t.right(90)
    filled_square(t,8,100,"black")

def draw_flag(t,color1,color2,color3):
    t.screen.bgcolor("black")
    filled_square(t,120,60, color1)
    t.forward(60)
    filled_square(t, 120, 60, color2)
    t.forward(60)
    filled_square(t, 120, 60, color3)

def draw_segment(t,r,a,color):
    t.color(color)
    t.fillcolor(color)
    t.begin_fill()
    t.circle(r,a)
    t.left(90)
    t.forward(r)
    t.end_fill()
    t.backward(r)
    t.right(90)

def pie_chart(t,r):
    a = 240
    draw_segment(t,r,a,"red")
    a = 90
    draw_segment(t, r, a, "blue")
    a = 30
    draw_segment(t, r, a, "green")

def yin(r):
    sophia.begin_fill()
    sophia.circle(r/2, -180)
    sophia.end_fill()
    sophia.left(90)
    sophia.forward(r / 2.5)
    sophia.right(90)
    filled_circle(sophia, r / 10, "black")

def yang(r):
    zoe.penup()
    zoe.circle(r, -180)
    zoe.pendown()
    zoe.begin_fill()
    zoe.circle(r / 2, -180)
    zoe.end_fill()
    zoe.left(90)
    zoe.forward(r/2.5)
    zoe.right(90)
    filled_circle(zoe,r/10,"white")

def yin_yang(r):
    sophia.screen.bgcolor("grey")
    sophia.color("white")
    sophia.fillcolor("white")
    zoe.fillcolor("black")
    zoe.color("black")
    sophia.begin_fill()
    sophia.circle(r, -180)
    sophia.end_fill()
    zoe.begin_fill()
    zoe.circle(r, 180)
    zoe.end_fill()
    yang(r)
    yin(r)

Turtle.target = draw_target
sophia = Turtle()
sophia.hideturtle()
sophia.speed(0)
zoe = Turtle()
zoe.hideturtle()
zoe.speed(0)