Move Palette traits to their own directory.

Also adds missing TraitLocation definitions.

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

@@ -0,0 +1,77 @@
+#region Copyright & License Information
+/*
+ * Copyright 2007-2021 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, 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("Create a color picker palette from another palette.")]
+	class ColorPickerPaletteInfo : TraitInfo
+	{
+		[PaletteDefinition]
+		[FieldLoader.Require]
+		[Desc("Internal palette name.")]
+		public readonly string Name = null;
+
+		[PaletteReference]
+		[FieldLoader.Require]
+		[Desc("The name of the palette to base off.")]
+		public readonly string BasePalette = null;
+
+		[FieldLoader.Require]
+		[Desc("Remap these indices to player colors.")]
+		public readonly int[] RemapIndex = { };
+
+		[Desc("Allow palette modifiers to change the palette.")]
+		public readonly bool AllowModifiers = true;
+
+		public override object Create(ActorInitializer init) { return new ColorPickerPalette(init.World, this); }
+	}
+
+	class ColorPickerPalette : ILoadsPalettes, IProvidesAssetBrowserColorPickerPalettes, ITickRender
+	{
+		readonly ColorPickerPaletteInfo info;
+		readonly ColorPickerManagerInfo colorManager;
+		Color color;
+
+		public ColorPickerPalette(World world, ColorPickerPaletteInfo info)
+		{
+			// All users need to use the same TraitInfo instance, chosen as the default mod rules
+			colorManager = Game.ModData.DefaultRules.Actors[SystemActors.World].TraitInfo<ColorPickerManagerInfo>();
+			this.info = info;
+		}
+
+		void ILoadsPalettes.LoadPalettes(WorldRenderer wr)
+		{
+			color = colorManager.Color;
+			var (_, h, s, _) = color.ToAhsv();
+			var remap = new PlayerColorRemap(info.RemapIndex, h, s);
+			wr.AddPalette(info.Name, new ImmutablePalette(wr.Palette(info.BasePalette).Palette, remap), info.AllowModifiers);
+		}
+
+		IEnumerable<string> IProvidesAssetBrowserColorPickerPalettes.ColorPickerPaletteNames { get { yield return info.Name; } }
+
+		void ITickRender.TickRender(WorldRenderer wr, Actor self)
+		{
+			if (color == colorManager.Color)
+				return;
+
+			color = colorManager.Color;
+			var (_, h, s, _) = color.ToAhsv();
+			var remap = new PlayerColorRemap(info.RemapIndex, h, s);
+			wr.ReplacePalette(info.Name, new ImmutablePalette(wr.Palette(info.BasePalette).Palette, remap));
+		}
+	}
+}