using System;
using UnityEngine;

public class Render : MonoBehaviour
{
	public static GUIStyle StringStyle { get; set; } = new GUIStyle(GUI.skin.label);

	public static Color Color
	{
		get { return GUI.color; }
		set { GUI.color = value; }
	}

	public static void DrawBox(Vector2 position, Vector2 size, Color color, bool centered = true)
	{
		Color = color;
		DrawBox(position, size, centered);
	}
	public static void DrawBox(Vector2 position, Vector2 size, bool centered = true)
	{
		var upperLeft = centered ? position - size / 2f : position;
		GUI.DrawTexture(new Rect(position, size), Texture2D.whiteTexture, ScaleMode.StretchToFill);
	}

	public static void DrawString(Vector2 position, string label, Color color, bool centered = true)
	{
		Color = color;
		DrawString(position, label, centered);
	}
	public static void DrawString(Vector2 position, string label, bool centered = true)
	{
		var content = new GUIContent(label);
		var size = StringStyle.CalcSize(content);
		var upperLeft = centered ? position - size / 2f : position;
		GUI.Label(new Rect(upperLeft, size), content);
	}

	public static Texture2D lineTex;
	public static void DrawLine(Vector2 pointA, Vector2 pointB, Color color, float width)
	{
		Matrix4x4 matrix = GUI.matrix;
		if (!lineTex)
			lineTex = new Texture2D(1, 1);

		Color color2 = GUI.color;
		GUI.color = color;
		float num = Vector3.Angle(pointB - pointA, Vector2.right);

		if (pointA.y > pointB.y)
			num = -num;

		GUIUtility.ScaleAroundPivot(new Vector2((pointB - pointA).magnitude, width), new Vector2(pointA.x, pointA.y + 0.5f));
		GUIUtility.RotateAroundPivot(num, pointA);
		GUI.DrawTexture(new Rect(pointA.x, pointA.y, 1f, 1f), lineTex);
		GUI.matrix = matrix;
		GUI.color = color2;
	}

	public static void DrawBox(float x, float y, float w, float h, Color color, float thickness)
	{
		DrawLine(new Vector2(x, y), new Vector2(x + w, y), color, thickness);
		DrawLine(new Vector2(x, y), new Vector2(x, y + h), color, thickness);
		DrawLine(new Vector2(x + w, y), new Vector2(x + w, y + h), color, thickness);
		DrawLine(new Vector2(x, y + h), new Vector2(x + w, y + h), color, thickness);
	}

	public static void DrawBoxOutline(Vector2 Point, float width, float height, Color color, float thickness)
	{
		DrawLine(Point, new Vector2(Point.x + width, Point.y), color, thickness);
		DrawLine(Point, new Vector2(Point.x, Point.y + height), color, thickness);
		DrawLine(new Vector2(Point.x + width, Point.y + height), new Vector2(Point.x + width, Point.y), color, thickness);
		DrawLine(new Vector2(Point.x + width, Point.y + height), new Vector2(Point.x, Point.y + height), color, thickness);
	}
}