Move ColorShift traits into the main repo.

OpenRA.Mods.Common/Traits/Palettes/FixedPlayerColorShift.cs

@@ -0,0 +1,48 @@
+#region Copyright & License Information
+/*
+ * Copyright (c) The OpenRA Developers and Contributors
+ * 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, either version 3 of
+ * the License, or (at your option) any later version. For more
+ * information, see COPYING.
+ */
+#endregion
+
+using System.Collections.Generic;
+using OpenRA.Graphics;
+using OpenRA.Primitives;
+using OpenRA.Traits;
+
+namespace OpenRA.Mods.Common.Traits
+{
+	[TraitLocation(SystemActors.World | SystemActors.EditorWorld)]
+	[Desc("Add fixed color shifts to player palettes. Use to add RGBA compatibility to IndexedPlayerPalette.")]
+	public class FixedPlayerColorShiftInfo : TraitInfo
+	{
+		[PaletteReference(true)]
+		[FieldLoader.Require]
+		[Desc("The name of the palette to base off.")]
+		public readonly string BasePalette = null;
+
+		public readonly Dictionary<string, float[]> PlayerIndex;
+
+		public override object Create(ActorInitializer init) { return new FixedPlayerColorShift(this); }
+	}
+
+	public class FixedPlayerColorShift : ILoadsPlayerPalettes
+	{
+		readonly FixedPlayerColorShiftInfo info;
+
+		public FixedPlayerColorShift(FixedPlayerColorShiftInfo info)
+		{
+			this.info = info;
+		}
+
+		public void LoadPlayerPalettes(WorldRenderer wr, string playerName, Color color, bool replaceExisting)
+		{
+			if (info.PlayerIndex.TryGetValue(playerName, out var shift))
+				wr.SetPaletteColorShift(info.BasePalette + playerName, shift[0], shift[1], shift[2], shift[3], shift[4]);
+		}
+	}
+}