Replace highlight palette with tint effects.

OpenRA.Game/Traits/Player/FrozenActorLayer.cs

@@ -187,9 +187,12 @@ public IEnumerable<IRenderable> Render(WorldRenderer wr)
 
 			if (flashTicks > 0 && flashTicks % 2 == 0)
 			{
-				var highlight = wr.Palette("highlight");
-				return Renderables.Concat(Renderables.Where(r => !r.IsDecoration && r is IPalettedRenderable)
-					.Select(r => ((IPalettedRenderable)r).WithPalette(highlight)));
+				return Renderables.Concat(Renderables.Where(r => !r.IsDecoration && r is IModifyableRenderable)
+					.Select(r =>
+					{
+						var mr = (IModifyableRenderable)r;
+						return mr.WithTint(float3.Ones, mr.TintModifiers | TintModifiers.ReplaceColor).WithAlpha(0.5f);
+					}));
 			}
 
 			return Renderables;

OpenRA.Mods.Common/Effects/FlashTarget.cs

@@ -49,10 +49,14 @@ public IEnumerable<IRenderable> Render(WorldRenderer wr)
 		{
 			if (target.IsInWorld && tick >= 0 && tick % interval == 0)
 			{
-				var palette = wr.Palette(player == null ? "highlight" : "highlight" + player.InternalName);
+				var color = player == null ? float3.Ones : new float3(player.Color.R, player.Color.G, player.Color.B) / 255f;
 				return target.Render(wr)
-					.Where(r => !r.IsDecoration && r is IPalettedRenderable)
-					.Select(r => ((IPalettedRenderable)r).WithPalette(palette));
+					.Where(r => !r.IsDecoration && r is IModifyableRenderable)
+					.Select(r =>
+					{
+						var mr = (IModifyableRenderable)r;
+						return mr.WithTint(color, mr.TintModifiers | TintModifiers.ReplaceColor).WithAlpha(0.5f);
+					});
 			}
 
 			return SpriteRenderable.None;

OpenRA.Mods.Common/Traits/World/EditorActorPreview.cs

@@ -117,9 +117,13 @@ public IEnumerable<IRenderable> Render()
 			var items = previews.SelectMany(p => p.Render(worldRenderer, CenterPosition));
 			if (Selected)
 			{
-				var highlight = worldRenderer.Palette("highlight");
-				var overlay = items.Where(r => !r.IsDecoration && r is IPalettedRenderable)
-					.Select(r => ((IPalettedRenderable)r).WithPalette(highlight));
+				var overlay = items.Where(r => !r.IsDecoration && r is IModifyableRenderable)
+					.Select(r =>
+					{
+						var mr = (IModifyableRenderable)r;
+						return mr.WithTint(float3.Ones, mr.TintModifiers | TintModifiers.ReplaceColor).WithAlpha(0.5f);
+					});
+
 				return items.Concat(overlay);
 			}
 

OpenRA.Mods.Common/UpdateRules/Rules/20201213/RemovePlayerHighlightPalette.cs

@@ -0,0 +1,34 @@
+#region Copyright & License Information
+/*
+ * Copyright 2007-2020 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;
+
+namespace OpenRA.Mods.Common.UpdateRules.Rules
+{
+	public class RemovePlayerHighlightPalette : UpdateRule
+	{
+		public override string Name { get { return "PlayerHighlightPalette trait has been removed."; } }
+
+		public override string Description
+		{
+			get
+			{
+				return "PlayerHighlightPalette trait has been removed. Its functionality is now automatically provided by the engine.";
+			}
+		}
+
+		public override IEnumerable<string> UpdateActorNode(ModData modData, MiniYamlNode actorNode)
+		{
+			actorNode.RemoveNodes("PlayerHighlightPalette");
+			yield break;
+		}
+	}
+}

OpenRA.Mods.Common/UpdateRules/UpdatePath.cs

@@ -85,6 +85,7 @@ public class UpdatePath
 			{
 				// Bleed only changes here
 				new RenameMPTraits(),
+				new RemovePlayerHighlightPalette(),
 			})
 		};
 

mods/cnc/rules/palettes.yaml

@@ -84,12 +84,6 @@
 		G: 0
 		B: 0
 		A: 140
-	PaletteFromRGBA@highlight:
-		Name: highlight
-		R: 255
-		G: 255
-		B: 255
-		A: 128
 	PaletteFromRGBA@moveflash:
 		Name: moveflash
 		R: 255
@@ -115,7 +109,6 @@
 	PlayerColorPalette:
 		BasePalette: terrain
 		RemapIndex: 176, 178, 180, 182, 184, 186, 189, 191, 177, 179, 181, 183, 185, 187, 188, 190
-	PlayerHighlightPalette:
 	MenuPaletteEffect:
 		MenuEffect: Desaturated
 	CloakPaletteEffect:

mods/d2k/rules/palettes.yaml

@@ -28,12 +28,6 @@
 		G: 0
 		B: 0
 		A: 140
-	PaletteFromRGBA@highlight:
-		Name: highlight
-		R: 255
-		G: 255
-		B: 255
-		A: 128
 	PaletteFromEmbeddedSpritePalette@moveflash-base:
 		Name: moveflash-base
 		Image: moveflsh
@@ -78,7 +72,6 @@
 		BasePalette: player
 		Alpha: 0.68
 		Premultiply: false
-	PlayerHighlightPalette:
 	FlashPaletteEffect:
 	PaletteFromPlayerPaletteWithAlpha@cloak:
 		BaseName: cloak

mods/ra/rules/palettes.yaml

@@ -58,12 +58,6 @@
 		G: 0
 		B: 0
 		A: 140
-	PaletteFromRGBA@highlight:
-		Name: highlight
-		R: 255
-		G: 255
-		B: 255
-		A: 128
 	PaletteFromRGBA@moveflash:
 		Name: moveflash
 		R: 255
@@ -100,7 +94,6 @@
 		BaseName: cloak
 		BasePalette: player
 		Alpha: 0.55
-	PlayerHighlightPalette:
 	MenuPaletteEffect:
 	RotationPaletteEffect@defaultwater:
 		Palettes: terrain

mods/ts/rules/palettes.yaml

@@ -105,12 +105,6 @@
 		G: 0
 		B: 0
 		A: 140
-	PaletteFromRGBA@highlight:
-		Name: highlight
-		R: 255
-		G: 255
-		B: 255
-		A: 128
 	PaletteFromRGBA@moveflash:
 		Name: moveflash
 		R: 255
@@ -161,7 +155,6 @@
 		BasePalette: terraindecoration
 		Name: terrainalpha
 		Alpha: 0.55
-	PlayerHighlightPalette:
 	MenuPaletteEffect:
 	GlobalLightingPaletteEffect:
 		ExcludePalettes: cursor, chrome, colorpicker, fog, shroud, alpha, effect-ignore-lighting, effect-ignore-lighting-alpha25, effect-ignore-lighting-alpha50, effect-ignore-lighting-alpha75, greentiberium, bluetiberium