Add property requirements to safe traits

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

@@ -18,6 +18,7 @@ namespace OpenRA.Mods.Common.Traits
 	[Desc("Loads the palette specified in the tileset definition")]
 	class PaletteFromCurrentTilesetInfo : ITraitInfo
 	{
+		[FieldLoader.Require]
 		[Desc("internal palette name")]
 		public readonly string Name = null;
 		[Desc("Map listed indices to shadow. Ignores previous color.")]

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

@@ -17,10 +17,12 @@ namespace OpenRA.Mods.Common.Traits
 {
 	class PaletteFromFileInfo : ITraitInfo
 	{
+		[FieldLoader.Require]
 		[Desc("internal palette name")]
 		public readonly string Name = null;
 		[Desc("If defined, load the palette only for this tileset.")]
 		public readonly string Tileset = null;
+		[FieldLoader.Require]
 		[Desc("filename to load")]
 		public readonly string Filename = null;
 		[Desc("Map listed indices to shadow. Ignores previous color.")]

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

@@ -19,9 +19,11 @@ namespace OpenRA.Mods.D2k.Traits
 	[Desc("Create a palette by applying alpha transparency to another palette.")]
 	class PaletteFromPaletteWithAlphaInfo : ITraitInfo
 	{
+		[FieldLoader.Require]
 		[Desc("Internal palette name")]
 		public readonly string Name = null;
 
+		[FieldLoader.Require]
 		[Desc("The name of the palette to base off.")]
 		public readonly string BasePalette = null;
 

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

@@ -19,9 +19,11 @@ namespace OpenRA.Mods.D2k.Traits
 	[Desc("Create player palettes by applying alpha transparency to another player palette.")]
 	class PaletteFromPlayerPaletteWithAlphaInfo : ITraitInfo
 	{
+		[FieldLoader.Require]
 		[Desc("The prefix for the resulting player palettes")]
 		public readonly string BaseName = null;
 
+		[FieldLoader.Require]
 		[Desc("The name of the player palette to base off.")]
 		public readonly string BasePalette = null;
 

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

@@ -18,6 +18,7 @@ namespace OpenRA.Mods.Common.Traits
 	[Desc("Creates a single color palette without any base palette file.")]
 	class PaletteFromRGBAInfo : ITraitInfo
 	{
+		[FieldLoader.Require]
 		[Desc("internal palette name")]
 		public readonly string Name = null;
 		[Desc("If defined, load the palette only for this tileset.")]

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

@@ -16,6 +16,7 @@ namespace OpenRA.Mods.Common.Traits
 {
 	class PlayerPaletteFromCurrentTilesetInfo : ITraitInfo
 	{
+		[FieldLoader.Require]
 		[Desc("internal palette name")]
 		public readonly string Name = null;
 		[Desc("Map listed indices to shadow.")]