C# - рисование с помощью черепашки из SmallBasicLibrary

GoTurtle.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using Microsoft.SmallBasic.Library;

namespace GoTurtle
{
    class Program
    {
        static void Main(string[] args)
        {
            GraphicsWindow.PenColor = "Blue";
            Turtle.Speed = 10;
            GraphicsWindow.Show();
            Turtle.Show();

            //for(int j=0; j<3; j++)
            //    for (int i = 0; i < 5; i++)
            //    {
            //        DrawHouse(50+j%2*50+i*100,200+j*100, 50);
            //    }


            //DrawCircle(200,200,50);
            Turtle.X = 50;
            Turtle.Y = 400;
            DrawSnowFlake(400,4);
        }

        private static void DrawSnowFlake(double size=120, int details=3)
        {
            Turtle.Turn(30);
            DrawSegment(size, details);
            Turtle.Turn(120);
            DrawSegment(size, details);
            Turtle.Turn(120);
            DrawSegment(size, details);
        }
        private static void DrawSegment(double length, int level=0)
        {
            if (level == 0)
                Turtle.Move(length);
            else
            {
                DrawSegment(length/3, level - 1);
                Turtle.Turn(-60);
                DrawSegment(length / 3, level - 1);
                Turtle.Turn(120);
                DrawSegment(length / 3, level - 1);
                Turtle.Turn(-60);
                DrawSegment(length / 3, level - 1);
            }
        }

        private static void DrawCircle(double x, double y, double radius)
        {
            Turtle.X = x - radius;
            Turtle.Y = y;
            Turtle.Angle = 0;
            for (int i = 0; i < 360; i++)
            {
                Turtle.Move(System.Math.PI*radius/180);
                Turtle.Turn(1);
            }
        }

        private static void DrawHouse(double x, double y,double size=100)
        {
            Turtle.X = x;
            Turtle.Y = y;
            Turtle.Angle = 0;
            for (int i = 0; i < 4; i++)
            {
                Turtle.Move(size);
                Turtle.TurnRight();
            }
            Turtle.Y -= size;
            Turtle.MoveTo(Turtle.X + size/2, Turtle.Y - size);
            Turtle.MoveTo(Turtle.X + size/2, Turtle.Y + size);

            Turtle.X -= size/4;
            Turtle.Y += size/4;
            Turtle.Angle = 180;
            for (int i = 0; i < 4; i++)
            {
                Turtle.Move(size/2);
                Turtle.TurnRight();
            }
            Turtle.X = x;
            Turtle.Y = y;
        }
    }
}