#region Copyright & License Information
/*
 * Copyright 2007-2011 The OpenRA Developers (see AUTHORS)
 * This file is part of OpenRA, which is free software. It is made
 * available to you under the terms of the GNU General Public License
 * as published by the Free Software Foundation. For more information,
 * see COPYING.
 */
#endregion

using System.Drawing;
using OpenRA.FileFormats;
using OpenRA.Graphics;
using OpenRA.Traits;

namespace OpenRA.Mods.RA
{
	class ShroudPaletteInfo : ITraitInfo
	{
		public readonly string Name = "shroud";
		public readonly bool IsFog = false;

		public object Create(ActorInitializer init) { return new ShroudPalette(this); }
	}

	class ShroudPalette : IPalette
	{
		readonly ShroudPaletteInfo info;

		public ShroudPalette(ShroudPaletteInfo info) { this.info = info; }

		public void InitPalette(WorldRenderer wr)
		{
			var pal = wr.GetPalette("terrain");
			wr.AddPalette(info.Name, new Palette(pal, new ShroudPaletteRemap(info.IsFog)), false);
		}
	}

	class ShroudPaletteRemap : IPaletteRemap
	{
		bool isFog;

		public ShroudPaletteRemap(bool isFog) { this.isFog = isFog; }
		public Color GetRemappedColor(Color original, int index)
		{
			if (isFog)
				return new[] {
					Color.Transparent, Color.Green,
					Color.Blue, Color.Yellow,
					Color.FromArgb(128,0,0,0),
					Color.FromArgb(128,0,0,0),
					Color.FromArgb(128,0,0,0),
					Color.FromArgb(64,0,0,0)}[index % 8];
			else
				return new[] {
					Color.Transparent, Color.Green,
					Color.Blue, Color.Yellow,
					Color.Black,
					Color.FromArgb(128,0,0,0),
					Color.Transparent,
					Color.Transparent}[index % 8];
		}
	}
}