local player buildings influence map, incrementally updated.

OpenRa.Game/GameRules/Footprint.cs

@@ -35,5 +35,23 @@ namespace OpenRa.Game.GameRules
 			buildingFootprints = buildings
 				.ToDictionary(a => a.Name, a => a.Pat);
 		}
+
+		public static IEnumerable<int2> Tiles(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 != '_')
+						yield return position + new int2(i, j);
+					++i;
+				}
+				++j;
+			}
+		}
 	}
 }