Make captured hospitals in cnc/ra gradually heal all infantry units on the map

OpenRA.Mods.RA/SelfHealing.cs

@@ -8,6 +8,7 @@
  */
 #endregion
 
+using System.Linq;
 using OpenRA.Traits;
 
 namespace OpenRA.Mods.RA
@@ -18,6 +19,7 @@ namespace OpenRA.Mods.RA
 		public readonly int Ticks = 5;
 		public readonly float HealIfBelow = .5f;
 		public readonly int DamageCooldown = 0;
+		public readonly string RequiresTech = null;
 
 		public virtual object Create(ActorInitializer init) { return new SelfHealing(this); }
 	}
@@ -35,6 +37,10 @@ namespace OpenRA.Mods.RA
 			if (self.IsDead())
 				return;
 
+			if (Info.RequiresTech != null && !self.World.ActorsWithTrait<SelfHealingTech>()
+				.Any(a => !a.Actor.IsDead() && a.Actor.Owner.IsAlliedWith(self.Owner) && Info.RequiresTech == a.Trait.Type))
+					return;
+
 			var health = self.Trait<Health>();
 			if (health.HP >= Info.HealIfBelow*health.MaxHP)
 				return;
@@ -52,10 +58,29 @@ namespace OpenRA.Mods.RA
 			}
 		}
 
-		public void Damaged (Actor self, AttackInfo e)
+		public void Damaged(Actor self, AttackInfo e)
 		{
 			if (e.Damage > 0)
 				damageTicks = Info.DamageCooldown;
 		}
 	}
+
+	class SelfHealingTechInfo : ITraitInfo
+	{
+		public readonly string Type = null;
+
+		public object Create(ActorInitializer init) { return new SelfHealingTech(this); }
+	}
+
+	class SelfHealingTech
+	{
+		public string Type { get { return info.Type; } }
+
+		readonly SelfHealingTechInfo info;
+
+		public SelfHealingTech(SelfHealingTechInfo info)
+		{
+			this.info = info;
+		}
+	}
 }