FIX works

OpenRa.Game/Controller.cs

@@ -162,6 +162,7 @@ namespace OpenRa.Game
                 else
                     return Cursor.MoveBlocked;
 			case "Enter": return Cursor.Enter;
+			case "Infiltrate": return Cursor.Enter;
 			case "Capture": return Cursor.Capture;
 			case "Harvest": return Cursor.Attack; // TODO: special harvest cursor?
 			default:

OpenRa.Game/OpenRa.Game.csproj

@@ -198,6 +198,7 @@
     <Compile Include="Traits\MineImmune.cs" />
     <Compile Include="Traits\Minelayer.cs" />
     <Compile Include="Traits\LimitedAmmo.cs" />
+    <Compile Include="Traits\Repairable.cs" />
     <Compile Include="Traits\Reservable.cs" />
     <Compile Include="Traits\SquishByTank.cs" />
     <Compile Include="Traits\Plane.cs" />

OpenRa.Game/PathFinder.cs

@@ -49,7 +49,7 @@ namespace OpenRa.Game
 			}
 		}
 		
-		Func<int2, bool> AvoidUnitsNear(int2 p, int dist)
+		public Func<int2, bool> AvoidUnitsNear(int2 p, int dist)
 		{
 			return q =>
 				p != q &&

OpenRa.Game/PathSearch.cs

@@ -15,6 +15,7 @@ namespace OpenRa.Game
 		Func<int2, bool> customBlock;
 		public bool checkForBlocked;
 		public bool ignoreTerrain;
+		public Actor ignoreBuilding;
 
 		public PathSearch()
 		{
@@ -28,6 +29,12 @@ namespace OpenRa.Game
 			return this;
 		}
 
+		public PathSearch WithIgnoredBuilding(Actor b)
+		{
+			ignoreBuilding = b;
+			return this;
+		}
+
 		public int2 Expand( float[][ , ] passableCost )
 		{
 			var p = queue.Pop();
@@ -49,7 +56,8 @@ namespace OpenRa.Game
 				{
 					if (passableCost[(int)umt][newHere.X, newHere.Y] == float.PositiveInfinity)
 						continue;
-					if (!Game.BuildingInfluence.CanMoveHere(newHere))
+					if (!Game.BuildingInfluence.CanMoveHere(newHere) && 
+						Game.BuildingInfluence.GetBuildingAt(newHere) != ignoreBuilding)
 						continue;
 					if (Rules.Map.IsOverlaySolid(newHere))
 						continue;

OpenRa.Game/Traits/Activities/Move.cs

@@ -14,6 +14,7 @@ namespace OpenRa.Game.Traits.Activities
 		int nearEnough;
 		public List<int2> path;
 		Func<Actor, Mobile, List<int2>> getPath;
+		public Actor ignoreBuilding;
 
 		MovePart move;
 
@@ -26,6 +27,18 @@ namespace OpenRa.Game.Traits.Activities
 			this.nearEnough = nearEnough;
 		}
 
+		public Move(int2 destination, Actor ignoreBuilding)
+		{
+			this.getPath = (self, mobile) => 
+				Game.PathFinder.FindPath(
+					PathSearch.FromPoint( self.Location, destination, mobile.GetMovementType(), false )
+					.WithCustomBlocker( Game.PathFinder.AvoidUnitsNear( self.Location, 4 )).WithIgnoredBuilding( ignoreBuilding ));
+
+			this.destination = destination;
+			this.nearEnough = 0;
+			this.ignoreBuilding = ignoreBuilding;
+		}
+
 		public Move( Actor target, int range )
 		{
 			this.getPath = ( self, mobile ) => Game.PathFinder.FindUnitPathToRange(
@@ -42,9 +55,11 @@ namespace OpenRa.Game.Traits.Activities
 			this.nearEnough = 0;
 		}
 
-		static bool CanEnterCell( int2 c, Actor self )
+		bool CanEnterCell( int2 c, Actor self )
 		{
-			if (!Game.BuildingInfluence.CanMoveHere(c)) return false;
+			if (!Game.BuildingInfluence.CanMoveHere(c)
+				&& Game.BuildingInfluence.GetBuildingAt(c) != ignoreBuilding) 
+				return false;
 			
 			// Cannot enter a cell if any unit inside is uncrushable
 			// This will need to be updated for multiple-infantry-in-a-cell

OpenRa.Game/Traits/EngineerCapture.cs

@@ -16,13 +16,13 @@ namespace OpenRa.Game.Traits
 			
 			// todo: other bits
 
-			return new Order(underCursor.Health <= EngineerDamage ? "Capture" : "Enter",
+			return new Order(underCursor.Health <= EngineerDamage ? "Capture" : "Infiltrate",
 				self, underCursor, int2.Zero, null);
 		}
 
 		public void ResolveOrder(Actor self, Order order)
 		{
-			if (order.OrderString == "Enter" || order.OrderString == "Capture")
+			if (order.OrderString == "Infiltrate" || order.OrderString == "Capture")
 			{
 				self.CancelActivity();
 				self.QueueActivity(new Move(order.TargetActor, 1));

OpenRa.Game/Traits/Repairable.cs

@@ -0,0 +1,50 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using OpenRa.Game.Traits.Activities;
+
+namespace OpenRa.Game.Traits
+{
+	class Repairable : IOrder
+	{
+		IDisposable reservation;
+		public Repairable(Actor self) { }
+
+		public Order IssueOrder(Actor self, int2 xy, MouseInput mi, Actor underCursor)
+		{
+			if (mi.Button != MouseButton.Right) return null;
+			if (underCursor == null) return null;
+
+			if (underCursor.Info == Rules.UnitInfo["FIX"]
+				&& underCursor.Owner == self.Owner
+				&& !Reservable.IsReserved(underCursor))
+				return new Order("Enter", self, underCursor, int2.Zero, null);
+
+			return null;
+		}
+
+		public void ResolveOrder(Actor self, Order order)
+		{
+			if (reservation != null)
+			{
+				reservation.Dispose();
+				reservation = null;
+			}
+
+			if (order.OrderString == "Enter")
+			{
+				if (Reservable.IsReserved(order.TargetActor))
+					return;
+
+				var res = order.TargetActor.traits.GetOrDefault<Reservable>();
+				if (res != null) reservation = res.Reserve(self);
+
+				self.CancelActivity();
+				self.QueueActivity(new Move(((1 / 24f) * order.TargetActor.CenterLocation).ToInt2(), order.TargetActor));
+				self.QueueActivity(new Rearm());
+				self.QueueActivity(new Repair());
+			}
+		}
+	}
+}