Add click sounds to color widgets.

OpenRA.Mods.Common/Widgets/ColorBlockWidget.cs

@@ -21,16 +21,23 @@ namespace OpenRA.Mods.Common.Widgets
 		public Func<Color> GetColor;
 		public Action<MouseInput> OnMouseDown = _ => { };
 		public Action<MouseInput> OnMouseUp = _ => { };
+		public string ClickSound = null;
 
-		public ColorBlockWidget()
+		readonly Ruleset modRules;
+
+		[ObjectCreator.UseCtor]
+		public ColorBlockWidget(ModData modData)
 		{
+			modRules = modData.DefaultRules;
 			GetColor = () => Color;
 		}
 
 		protected ColorBlockWidget(ColorBlockWidget widget)
 			: base(widget)
 		{
+			modRules = widget.modRules;
 			GetColor = widget.GetColor;
+			ClickSound = widget.ClickSound;
 		}
 
 		public override Widget Clone()
@@ -63,6 +70,8 @@ namespace OpenRA.Mods.Common.Widgets
 			{
 				// OnMouseDown returns false if the button shouldn't be pressed
 				OnMouseDown(mi);
+
+				Game.Sound.PlayNotification(modRules, null, "Sounds", ClickSound, null);
 			}
 
 			return false;