#region Copyright & License Information
/*
 * Copyright 2007-2010 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 LICENSE.
 */
#endregion

using System.Drawing;
using OpenRA.Traits;
using System.Collections.Generic;
using OpenRA.FileFormats;

namespace OpenRA.Mods.RA
{
	class WaterPaletteRotationInfo : ITraitInfo
	{
		public readonly bool CncMode = false;
		public object Create(ActorInitializer init) { return new WaterPaletteRotation(CncMode); }
	}

	class WaterPaletteRotation : ITick, IPaletteModifier
	{
		bool cncmode = false;
		public WaterPaletteRotation(bool cncmode)
		{
			this.cncmode = cncmode;
		}
		
		float t = 0;
		public void Tick(Actor self)
		{
			t += .25f;
		}

		public void AdjustPalette(Dictionary<string,Palette> palettes)
		{
			var excludePalettes = new List<string>(){"cursor", "chrome", "colorpicker"};
			foreach (var pal in palettes)
			{
				if (excludePalettes.Contains(pal.Key))
					continue;
				
				var copy = (uint[])pal.Value.Values.Clone();
				var rotate = (int)t % 7;
				for (int i = 0; i < 7; i++)
				{
					if (cncmode)
						pal.Value.SetColor(0x20 + (rotate + i) % 7, copy[0x20 + i]);
					else
						pal.Value.SetColor(0x60 + (rotate + i) % 7, copy[0x60 + i]);
				}
			}
		}
	}
}