Commit before moving targeting

src/Dodge/Data/CWorld.hs

@@ -17,6 +17,7 @@ import Data.Aeson.TH
 import Dodge.GameRoom
 import Geometry.ConvexPoly
 import Dodge.Data.CamPos
+import qualified Data.IntSet as IS
 
 data CWorld = CWorld
     { _lWorld :: LWorld
@@ -25,6 +26,7 @@ data CWorld = CWorld
     , _cClock :: Int
     , _pastWorlds :: [LWorld]
     , _timeFlow :: TimeFlowStatus
+    , _seenWalls :: IS.IntSet
     }
 
 data TimeFlowStatus