---

from turtle import *


v = 0 #максимальная скорость черепашки
step = 15 #шаг


t = Turtle()
t.color('blue')
t.width(5)
t.shape('circle')
t.pendown()
t.speed(v)


def draw(x, y):
  t.goto(x, y)


def move(x, y):
  t.penup()
  t.goto(x, y)
  t.pendown()


def setRed():
  t.color('red')


def setGreen():
  t.color('green')


def setBlue():
  t.color('blue')


def stepUp():
 t.goto(t.xcor(), t.ycor() + step)


def stepDown():
 t.goto(t.xcor(), t.ycor() - step)


def stepLeft():
 t.goto(t.xcor() - step, t.ycor())


def stepRight():
 t.goto(t.xcor() + step, t.ycor())


def startFill():
  t.begin_fill()


def endFill():
  t.end_fill()


t.ondrag(draw)


scr = t.getscreen()
scr.onscreenclick(move)
scr.onkey(setRed,'r')
scr.onkey(setGreen,'g')
scr.onkey(setBlue,'b')
scr.onkey(stepUp,'Up')
scr.onkey(stepDown,'Down')
scr.onkey(stepLeft,'Left')
scr.onkey(stepRight,'Right')
scr.onkey(startFill,'f')
scr.onkey(endFill,'e')


scr.listen()