using UnityEngine;
using System.Collections;
using System.Linq;

/*
public class Plot2D {
	private Curve[] _curves;
	private Rect _dataBox;
	private string _title = "";
	private float _titleHeight = 20.0f;

	public string Title{
		get{ return _title;}
		set{ _title = value;}
	}

	public Plot2D(Curve curve) : this(new []{curve}) {
	}

	public Plot2D(Curve[] curves){
		_curves = curves;

		if (_curves == null || _curves.Length == 0) {
			return;
		}

		_dataBox = new Rect ();
		_dataBox.x = _curves.Select (v => v.Args.Min()).Min();
		_dataBox.y = _curves.Select (v => v.Vals.Max()).Max();
		_dataBox.width = _curves.Select (v => v.Args.Last ()).Max () - _dataBox.x;
		_dataBox.height = _curves.Select (v => v.Vals.Min()).Min() - _dataBox.y;
	}

	static Material lineMaterial;
	static void CreateLineMaterial()
	{
		if( !lineMaterial ) {
			lineMaterial = new Material( "Shader \"Lines/Colored Blended\" {" +
			                            "SubShader { Pass { " +
			                            "    Blend SrcAlpha OneMinusSrcAlpha " +
			                            "    ZWrite Off Cull Off Fog { Mode Off } " +
			                            "    BindChannels {" +
			                            "      Bind \"vertex\", vertex Bind \"color\", color }" +
			                            "} } }" );
			lineMaterial.hideFlags = HideFlags.HideAndDontSave;
			lineMaterial.shader.hideFlags = HideFlags.HideAndDontSave;
		}
	}
	// 

	public void SetCurve(Curve curve){


	}

	public void OnGUI(Rect rect){
		CreateLineMaterial ();
	
		//Plot header
		if (!string.IsNullOrEmpty (Title)) {
			var headerRect = new Rect(rect.x, rect.y - _titleHeight, rect.width, _titleHeight);
			lineMaterial.SetPass( 0 );
			Tools.DrawRectangle(headerRect, new Color(0,0,0,0.5f));

			var cache = GUI.skin.label.alignment;
			GUI.skin.label.alignment = TextAnchor.MiddleCenter;  
			GUI.Label (headerRect, Title);
			GUI.skin.label.alignment = cache;
		}
	

		lineMaterial.SetPass( 0 );

		//background quad
		Tools.DrawRectangle (rect, new Color(0,0,0.1f,0.25f));


		//horizontal lines
		GL.Begin(GL.LINES);
		GL.Color(new Color(1,1,0,0.4f));
		int hlines = 5;
		for(int i = 0; i < hlines; ++i){
			float step = rect.height / (float)(hlines - 1);
			GL.Vertex3(rect.x, rect.y + step * (float)i, 0);
			GL.Vertex3(rect.x + rect.width, rect.y + step * (float)i, 0);
		}

		int vlines = 7;
		for(int i = 0; i < vlines; ++i){
			float step = rect.width / (float)(vlines - 1);
			GL.Vertex3(rect.x + step * (float)i, rect.y, 0);
			GL.Vertex3(rect.x + step * (float)i, rect.y + rect.height, 0);
		}
		GL.End();

		float textHeight = 15.0f;
		float textWidth = 74.0f;
		for(int i = 0; i < hlines; ++i){
			float step = rect.height / (float)(hlines - 1);
			var pt = new Vector3(rect.x ,rect.y + step * (float)i, 0);

			lineMaterial.SetPass( 0 );
		
			var r = new Rect(pt.x - textWidth - 10, pt.y - textHeight*0.5f, textWidth,textHeight);
			Tools.DrawRectangle(r, new Color(0,0,0,0.6f));

			var val = (_dataBox.height / (float)(hlines - 1)) * (float)i + _dataBox.y;

			var cache = GUI.skin.label.alignment;
			GUI.skin.label.alignment = TextAnchor.MiddleRight;  
			GUI.Label (r, val.ToString("0.0000"));
			GUI.skin.label.alignment = cache;
		}


		for(int i = 0; i < vlines; ++i){
			float step = rect.width / (float)(vlines - 1);
			var pt = new Vector3(rect.x + step * (float)i , rect.y + rect.height, 0);
			
			lineMaterial.SetPass( 0 );
			
			var r = new Rect(pt.x, pt.y + (i % 2) * textHeight * 1.25f + 5, textWidth,textHeight);

			Tools.DrawRectangle(r, new Color(0,0,0,0.6f));
			
			var val = (_dataBox.width / (float)(vlines - 1)) * (float)i + _dataBox.x;
			
			var cache = GUI.skin.label.alignment;
			GUI.skin.label.alignment = TextAnchor.MiddleLeft;  
			GUI.Label (r, val.ToString("0.0"));
			GUI.skin.label.alignment = cache;
		}

		lineMaterial.SetPass( 0 );

		Color[] colors = new Color[]{Color.red, Color.green, Color.blue};

		for(int j = 0; j < _curves.Length; ++j){
			var curve = _curves[j];
			GL.Begin(GL.LINES);
			GL.Color(colors[j % colors.Length]);
			float xScale = _dataBox.width / rect.width;
			float yScale = _dataBox.height / rect.height;
			for (int i = 0; i < (curve.Args.Length - 1); ++i) {
				float x0 = ((curve.Args[i] - _dataBox.x) / xScale) + rect.x;
				float y0 = ((curve.Vals[i] - _dataBox.y) / yScale) + rect.y;
				float x1 = ((curve.Args[i + 1] - _dataBox.x) / xScale) + rect.x;
				float y1 = ((curve.Vals[i + 1] - _dataBox.y) / yScale) + rect.y;
				
				
				
				GL.Vertex3(x0, y0, 0);
				GL.Vertex3(x1, y1, 0);
			}
			GL.End();

		}

	}
}*/