diff --git a/OpenRa.Game/Actor.cs b/OpenRa.Game/Actor.cs
index 340f3d02fe..b3671ddf33 100755
--- a/OpenRa.Game/Actor.cs
+++ b/OpenRa.Game/Actor.cs
@@ -6,7 +6,7 @@ using System.Text;
 using IjwFramework.Types;
 using OpenRa.FileFormats;
 using OpenRa.Game.GameRules;
-using OpenRa.Game.Graphics;
+using OpenRa.Game.Graphics;
 using System.Drawing;
 
 namespace OpenRa.Game
@@ -142,16 +142,16 @@ namespace OpenRa.Game
 				.Select( x => x.Order( this, game, xy ) )
 				.Where( x => x != null )
 				.FirstOrDefault();
-		}
-
-		public RectangleF Bounds
-		{
-			get
-			{
-				var size = SelectedSize;
-				var loc = CenterLocation - 0.5f * size;
-				return new RectangleF(loc.X, loc.Y, size.X, size.Y);
-			}
+		}
+
+		public RectangleF Bounds
+		{
+			get
+			{
+				var size = SelectedSize;
+				var loc = CenterLocation - 0.5f * size;
+				return new RectangleF(loc.X, loc.Y, size.X, size.Y);
+			}
 		}
 	}
 
diff --git a/OpenRa.Game/BuildingInfluenceMap.cs b/OpenRa.Game/BuildingInfluenceMap.cs
index 4804af4cfa..18efbe568f 100644
--- a/OpenRa.Game/BuildingInfluenceMap.cs
+++ b/OpenRa.Game/BuildingInfluenceMap.cs
@@ -20,14 +20,14 @@ namespace OpenRa.Game
 
 		void AddInfluence(Actor a)
 		{
-			foreach (var t in Footprint.Tiles(a.unitInfo.Name, a.Location))
+			foreach (var t in Footprint.UnpathableTiles(a.unitInfo.Name, a.Location))
 				if (IsValid(t))
 					influence[t.X, t.Y] = a;
 		}
 
 		void RemoveInfluence(Actor a)
 		{
-			foreach (var t in Footprint.Tiles(a.unitInfo.Name, a.Location))
+			foreach (var t in Footprint.UnpathableTiles(a.unitInfo.Name, a.Location))
 				if (IsValid(t))
 					influence[t.X, t.Y] = null;
 		}
diff --git a/OpenRa.Game/GameRules/Footprint.cs b/OpenRa.Game/GameRules/Footprint.cs
index 0e3cde75c5..77986fcfc3 100644
--- a/OpenRa.Game/GameRules/Footprint.cs
+++ b/OpenRa.Game/GameRules/Footprint.cs
@@ -53,5 +53,23 @@ namespace OpenRa.Game.GameRules
 				++j;
 			}
 		}
+
+		public static IEnumerable<int2> UnpathableTiles( string name, int2 position )
+		{
+			var footprint = Rules.Footprint.GetFootprint( name );
+			var j = 0;
+
+			foreach( var row in footprint )
+			{
+				var i = 0;
+				foreach( var c in row )
+				{
+					if( c == 'x' )
+						yield return position + new int2( i, j );
+					++i;
+				}
+				++j;
+			}
+		}
 	}
 }
diff --git a/OpenRa.Game/MainWindow.cs b/OpenRa.Game/MainWindow.cs
index cd5ba8c2a1..1b87aaa0ca 100644
--- a/OpenRa.Game/MainWindow.cs
+++ b/OpenRa.Game/MainWindow.cs
@@ -95,10 +95,10 @@ namespace OpenRa.Game
                 Button = e.Button,
                 Event = MouseInputEvent.Move,
                 Location = new int2(e.Location)
-            });
-
-			if (game.controller.orderGenerator != null)
-				game.controller.orderGenerator.PrepareOverlay(game,
+            });
+
+			if (game.controller.orderGenerator != null)
+				game.controller.orderGenerator.PrepareOverlay(game,
 					((1 / 24f) * (new float2(e.Location) + game.viewport.Location)).ToInt2());
 		}
 
diff --git a/footprint.txt b/footprint.txt
index 2c9f6b4dab..69900d848c 100644
--- a/footprint.txt
+++ b/footprint.txt
@@ -6,10 +6,11 @@
 
 x			: ftur sbag brik fenc gun pbox hbox silo gap kenn *
 _ x			: tsla agun
-xx xx xx	: powr dome barr tent domf hpad atek
-xxx xxx xxx	: fact facf syrf syrd weap weaf spen spef apwr stek
+xx xx ==	: powr dome barr tent domf hpad atek
+xxx xxx ===	: fact facf weap weaf apwr stek
+xxx xxx xxx : syrf syrd spen spef
 xx			: sam mslo
-_x_ xxx xxx xxx : proc
+_x_ xxx x== === : proc
 xxx xxx			: afld
 _x_ xxx _x_		: fix
-__ xx           : iron
+xx xx           : iron