using System;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Animation;
using System.Windows.Media.Imaging;
using System.Windows.Shapes;



namespace Psychlops
{

	public struct Point
	{
		public double x, y, z;
		public Point(double dx, double dy, double dz)
		{
			x = dx;
			y = dy;
			z = dz;
		}
		public Point(double dx, double dy)
		{
			x = dx;
			y = dy;
			z = 0.0;
		}
		public Point set(double dx, double dy, double dz)
		{
			x = dx;
			y = dy;
			z = dz;
			return this;
		}
		public Point set(double dx, double dy)
		{
			x = dx;
			y = dy;
			z = 0.0;
			return this;
		}

		public static Point operator +(Point lhs, Point rhs)
		{
			return new Point(lhs.x + rhs.x, lhs.y + rhs.y, lhs.z + rhs.z);
		}
		public static Point operator -(Point lhs, Point rhs)
		{
			return new Point(lhs.x - rhs.x, lhs.y - rhs.y, lhs.z - rhs.z);
		}
		public static implicit operator System.Windows.Point(Point d)
		{
			return new System.Windows.Point(d.x, d.y);
		}
	}


	public struct Color
	{
		public double r, g, b, a;
		public Color(double lum)
		{
			r = g = b = lum;
			a = 1.0;
		}
		public Color(double red, double green, double blue)
		{
			r = red;
			g = green;
			b = blue;
			a = 1.0;
		}
		public Color(double red, double green, double blue, double alpha)
		{
			r = red;
			g = green;
			b = blue;
			a = alpha;
		}
		public void set(double lum)
		{
			r = g = b = lum;
			a = 1.0;
		}
		public void set(double red, double green, double blue)
		{
			r = red;
			g = green;
			b = blue;
			a = 1.0;
		}
		public void set(double red, double green, double blue, double alpha)
		{
			r = red;
			g = green;
			b = blue;
			a = alpha;
		}
		public static implicit operator System.Windows.Media.Color(Color d)
		{
			return System.Windows.Media.Color.FromArgb((byte)(d.a * 255), (byte)(d.r * 255), (byte)(d.g * 255), (byte)(d.b * 255));
		}

		public static readonly Color
			black = new Color(0, 0, 0, 1),
			red = new Color(1, 0, 0, 1),
			green = new Color(0, 1, 0, 1),
			blue = new Color(0, 0, 1, 1),
			yellow = new Color(1, 1, 0, 1),
			magenta = new Color(1, 0, 1, 1),
			cyan = new Color(0, 1, 1, 1),
			white = new Color(1, 1, 1, 1),
			gray = new Color(.5, .5, .5, 1);

	}


	public interface Drawable
	{
		Point getCenter();
		void clear(Color col);
		void pix(int x, int y, Color col);
		void line(Line drawee, Color col);
		void rect(Rectangle drawee, Color col);
		void ellipse(Ellipse drawee, Color col);
		void polygon(Polygon drawee, Color col);
		void letters(Letters drawee, Color col);
		void image(Image drawee);
		void msg(string s, double x, double y, Color c);
	}



	public interface Figure
	{
		Figure shift(Point p);
		Figure centering(Point p);
		void draw();
	}
	public static class FigureExtention
	{
		public static Figure shift(this Figure target, double x, double y)
		{
			return target.shift(new Point(x, y));
		}
		public static Figure centering(this Figure target)
		{
			return target.centering(Main.drawable.getCenter());
		}
		public static Figure centering(this Figure target, double x, double y)
		{
			return target.centering(new Point(x, y));
		}
	}

	public class Image : Figure
	{
		public WriteableBitmap buffer;
		public Point datum;
		public Rectangle self_rect;

		public Image(int wid, int hei)
		{
			buffer = new WriteableBitmap(wid, hei);
			self_rect = new Rectangle(wid, hei);
		}

		/*public Image shift(double x, double y)
		{
			datum.x += x;
			datum.y += y;
			return this;
		}*/
		public Figure shift(Point p)
		{
			datum += p;
			return this;
		}
		public Figure centering(Point p)
		{
			datum.x = p.x - width / 2.0;
			datum.y = p.y - height / 2.0;
			return this;
		}

		public void pix(int x, int y, Color col)
		{
			buffer.SetPixel(x, y, col);
		}


		public void field(System.Func<int,int,System.Windows.Media.Color> func)
		{
			buffer.ForEach(func);
		}
		public void field(System.Func<int, int, System.Windows.Media.Color, System.Windows.Media.Color> func)
		{
			buffer.ForEach(func);
		}

		public void draw()
		{
			Main.drawable.image(this);
		}

		public double width  { get { return self_rect.width; } }
		public double height { get { return self_rect.height; } }

	}

}