using System;
using System.Drawing;
using System.Drawing.Drawing2D;


namespace RefactorMe
{
    class Painter
    {
        static float penСoordinateX, penСoordinateY;
        static Graphics graphics;

        public static void Initialize(Graphics newGraphics)
        {
            graphics = newGraphics;
            graphics.SmoothingMode = SmoothingMode.None;
            graphics.Clear(Color.Black);
        }

        public static void SetPosition(float x0, float y0)
        {
            penСoordinateX = x0;
            penСoordinateY = y0;
        }

        public static void Draw(Pen pen, double length, double angle)
        {
            //Делает шаг длиной length в направлении angle и рисует пройденную траекторию
            var x1 = (float)(penСoordinateX + length * Math.Cos(angle));
            var y1 = (float)(penСoordinateY + length * Math.Sin(angle));
            graphics.DrawLine(pen, penСoordinateX, penСoordinateY, x1, y1);
            penСoordinateX = x1;
            penСoordinateY = y1;
        }

        public static void ChangeСoordinatesPen(double length, double angle)
        {
            penСoordinateX = (float)(penСoordinateX + length * Math.Cos(angle));
            penСoordinateY = (float)(penСoordinateY + length * Math.Sin(angle));
        }
    }

    public class ImpossibleSquare
    {
        const float SizeWidth = 0.375f;
        const float FrameSize = 2f;
        const float SizeCornerLine = 0.04f;

        public static void DrawSide(double drawSize, double angle)
        {
            var penColor = Pens.Red;
            var drawingWidth = drawSize * SizeWidth;
            var cornerDrawingWidth = drawSize * SizeCornerLine;

            Painter.Draw(penColor, drawingWidth, angle);
            Painter.Draw(penColor, cornerDrawingWidth * Math.Sqrt(2), angle + Math.PI / 4);
            Painter.Draw(penColor, drawingWidth, angle + Math.PI);
            Painter.Draw(penColor, drawingWidth - cornerDrawingWidth, angle + Math.PI / 2);

            Painter.ChangeСoordinatesPen(cornerDrawingWidth, angle + Math.PI);
            Painter.ChangeСoordinatesPen(cornerDrawingWidth * Math.Sqrt(2), angle + 3 * Math.PI / 4);
        }
        public static void Draw(int width, int height, double angleRotate, Graphics graphics)
        {
            Painter.Initialize(graphics);

            var minSide = Math.Min(width, height);

            var diagonalLength = Math.Sqrt(2) * (minSide * (SizeWidth + SizeCornerLine)) / 2;
            var x0 = (float)(diagonalLength * Math.Cos(5 * Math.PI / 4)) + width / FrameSize;
            var y0 = (float)(diagonalLength * Math.Sin(5 * Math.PI / 4)) + height / FrameSize;

            //var radius = (float)diagonalLength/2;
            Painter.SetPosition(x0, y0);

            DrawSide(minSide, 0 + angleRotate);
            DrawSide(minSide, -Math.PI / 2 + angleRotate);
            DrawSide(minSide, Math.PI + angleRotate);
            DrawSide(minSide, Math.PI / 2 + angleRotate);
        }
    }
}