Added comments in performance sensitive code.

2015-12-04 19:38:20 +00:00
parent aaa82339d1
commit b0619a3e25
22 changed files with 76 additions and 11 deletions
--- a/OpenRA.Mods.Common/Widgets/RadarWidget.cs
+++ b/OpenRA.Mods.Common/Widgets/RadarWidget.cs
@@ -208,6 +208,8 @@ namespace OpenRA.Mods.Common.Widgets

 		void MarkShroudDirty(IEnumerable<PPos> projectedCellsChanged)
 		{
+			// PERF: Many cells in the shroud change every tick. We only track the changes here and defer the real work
+			// we need to do until we render. This allows us to avoid wasted work.
 			dirtyShroudCells.UnionWith(projectedCellsChanged);
 		}