from turtle import Turtle


class PolygonDrawer:
    def __init__(self, t: Turtle):
        self.t = t

    def __regular_polygon(self, corner_number, length, x, y):
        alpha = 360 / corner_number
        head = self.t.heading()
        self.t.teleport(x,y)
        for i in range(0, corner_number):
            self.t.forward(length)
            self.t.left(alpha)
        self.t.setheading(head)
        pass

    def triangle(self, length, x, y):
        self.__regular_polygon(3, length, x, y)