RA - AppearsFriendlyTo and AppearsHostileTo actor extensions

OpenRA.Mods.RA/ActorExts.cs

@@ -0,0 +1,51 @@
+using System;
+using OpenRA.Traits;
+namespace OpenRA.Mods.RA
+{
+	public static class ActorExts
+	{
+		public static bool AppearsFriendlyTo(this Actor self, Actor toActor) 
+		{ 
+			if (self.HasTrait<Spy>())
+			{
+				if (self.Trait<Spy>().Disguised)
+				{
+					//TODO: check if we can see through disguise
+					if ( toActor.Owner.Stances[self.Trait<Spy>().disguisedAsPlayer] == Stance.Ally)
+						return true;
+				}
+				else 
+				{
+					if (toActor.Owner.Stances[self.Owner] == Stance.Ally)
+						return true;
+				}
+				return false;
+			}
+			return toActor.Owner.Stances[self.Owner] == Stance.Ally;
+		}
+		
+		public static bool AppearsHostileTo(this Actor self, Actor toActor) 
+		{ 
+			if (self.HasTrait<Spy>())
+			{
+				if (toActor.Owner.Stances[self.Owner] == Stance.Ally)
+					return false;
+				
+				if (self.Trait<Spy>().Disguised)
+				{
+					//TODO: check if we can see through disguise
+					if ( toActor.Owner.Stances[self.Trait<Spy>().disguisedAsPlayer] == Stance.Enemy)
+						return true;
+				}
+				else 
+				{
+					if (toActor.Owner.Stances[self.Owner] == Stance.Enemy)
+						return true;
+				}
+				return false;
+			}
+			return toActor.Owner.Stances[self.Owner] == Stance.Enemy;
+		}
+	}
+}
+