Make capturing grant player experience

OpenRA.Mods.Common/Traits/Captures.cs

@@ -22,11 +22,19 @@ namespace OpenRA.Mods.Common.Traits
 	{
 		[Desc("Types of actors that it can capture, as long as the type also exists in the Capturable Type: trait.")]
 		public readonly HashSet<string> CaptureTypes = new HashSet<string> { "building" };
+
 		[Desc("Unit will do damage to the actor instead of capturing it. Unit is destroyed when sabotaging.")]
 		public readonly bool Sabotage = true;
+
 		[Desc("Only used if Sabotage=true. Sabotage damage expressed as a percentage of enemy health removed.")]
 		public readonly int SabotageHPRemoval = 50;
 
+		[Desc("Experience granted to the capturing player.")]
+		public readonly int PlayerExperience = 0;
+
+		[Desc("Stance that the structure's previous owner needs to have for the capturing player to receive Experience.")]
+		public readonly Stance PlayerExperienceStances = Stance.Enemy;
+
 		[VoiceReference] public readonly string Voice = "Action";
 
 		public object Create(ActorInitializer init) { return new Captures(init.Self, this); }