diff --git a/src/Dodge/Update/WallDamage.hs b/src/Dodge/Update/WallDamage.hs
index be5b5ce30..590f72323 100644
--- a/src/Dodge/Update/WallDamage.hs
+++ b/src/Dodge/Update/WallDamage.hs
@@ -2,7 +2,6 @@ module Dodge.Update.WallDamage (updateWallDamages, updateEdgesWall) where
 
 import Control.Lens
 import Data.Foldable
-import Data.Maybe
 import Data.Monoid
 import qualified Data.Set as S
 import Dodge.Data.World
@@ -13,23 +12,12 @@ import Dodge.Zoning.Base
 import Geometry.Data
 import qualified IntMapHelp as IM
 
---updateWallDamages :: World -> World
---updateWallDamages w =
---    let (is, w') = IM.foldlWithKey' f (mempty, w) (w ^. cWorld . lWorld . wallDamages)
---     in updateEdgesWall is w' & cWorld . lWorld . wallDamages .~ IM.empty
---  where
---    f isw k dams = fromMaybe isw $ do
---        wl <- isw ^? _2 . cWorld . lWorld . walls . ix k
---        return $ foldl' (flip (`damageWall` wl)) isw dams
-
 updateWallDamages :: World -> World
 updateWallDamages w = set (cWorld . lWorld . wallDamages) mempty
     . uncurry updateEdgesWall $ foldrM f w 
     (IM.toList $ w ^. cWorld . lWorld . wallDamages)
   where
-    f (k,dams) w' = fromMaybe (mempty,w') $ do
-        wl <- w' ^? cWorld . lWorld . walls . ix k
-        return $ foldrM (damageWall wl) w' dams
+    f (k,dams) w' = foldrM (damageWall k) w' dams
 
 updateEdgesWall :: S.Set Int2 -> World -> World
 updateEdgesWall is w =
diff --git a/src/Dodge/Wall/Damage.hs b/src/Dodge/Wall/Damage.hs
index d69a7e801..e818f3cea 100644
--- a/src/Dodge/Wall/Damage.hs
+++ b/src/Dodge/Wall/Damage.hs
@@ -1,67 +1,55 @@
 {-# LANGUAGE LambdaCase #-}
+
 {- | Controls a walls response to external damage.
  - Indestructible walls may still produce sparks, dust etc
 -}
-module Dodge.Wall.Damage (damageWall
-    ) where
+module Dodge.Wall.Damage (
+    damageWall,
+) where
 
-import Linear
-import Data.Maybe
-import Dodge.LightSource
 import Data.Foldable
-import Dodge.ShiftPoint
-import Dodge.Zoning.Pathing
-import Dodge.Zoning.Base
-import Dodge.Door.DoorLerp
-import Dodge.Wall.Delete
-import Dodge.Block.Debris
 import qualified Data.IntMap.Strict as IM
-import Geometry.Data
-import Dodge.Material.Damage
-import Dodge.Block
-import Dodge.Data.World
-import LensHelp
+import Data.Maybe
 import qualified Data.Set as S
+import Dodge.Block
+import Dodge.Block.Debris
+import Dodge.Data.World
+import Dodge.Door.DoorLerp
+import Dodge.LightSource
+import Dodge.Material.Damage
+import Dodge.ShiftPoint
+import Dodge.Wall.Delete
+import Dodge.Zoning.Base
+import Dodge.Zoning.Pathing
+import Geometry.Data
+import LensHelp
+import Linear
 
----- maybeDestroyDoor should rather happen during the door mechanism update
---damageWall :: Damage -> Wall -> (S.Set Int2,World) -> (S.Set Int2,World)
---damageWall dt wl (is,w) = case _wlStructure wl of
---    MachinePart mcid -> (,) is $ w' & cWorld . lWorld . machines . ix mcid . mcDamage .:~ dt
---    BlockPart blid ->
---        w' & cWorld . lWorld . blocks . ix blid . blHP -~ dmam
---            & maybeDestroyBlock blid
---            & _1 <>~ is
---    DoorPart drid _ ->
---        w' & cWorld . lWorld . doors . ix drid . drHP -~ dmam
---            & maybeDestroyDoor drid
---            & _1 <>~ is
---    _ -> (is, w')
---  where
---    (dmam,w') = damMatSideEffect dt (_wlMaterial wl) (Right wl) w
-
-damageWall ::  Wall -> Damage ->World -> (S.Set Int2,World)
-damageWall wl dt w = case _wlStructure wl of
-    MachinePart mcid -> (,) mempty $ w' & cWorld . lWorld . machines . ix mcid . mcDamage .:~ dt
-    BlockPart blid ->
-        w' & cWorld . lWorld . blocks . ix blid . blHP -~ dmam
-            & maybeDestroyBlock blid
-    DoorPart drid _ ->
-        w' & cWorld . lWorld . doors . ix drid . drHP -~ dmam
-            & maybeDestroyDoor drid
-    _ -> (mempty, w')
-  where
-    (dmam,w') = damMatSideEffect dt (_wlMaterial wl) (Right wl) w
+damageWall :: Int -> Damage -> World -> (S.Set Int2, World)
+damageWall wlid dt w = fromMaybe (mempty,w) $ do
+    wl <- w ^? cWorld . lWorld . walls . ix wlid 
+    let (dmam, w') = damMatSideEffect dt (_wlMaterial wl) (Right wl) w
+    return $ case wl ^. wlStructure of
+        MachinePart mcid -> (,) mempty 
+            $ w' & cWorld . lWorld . machines . ix mcid . mcDamage .:~ dt
+        BlockPart blid ->
+            w' & cWorld . lWorld . blocks . ix blid . blHP -~ dmam
+                & maybeDestroyBlock blid
+        DoorPart drid _ ->
+            w' & cWorld . lWorld . doors . ix drid . drHP -~ dmam
+                & maybeDestroyDoor drid
+        _ -> (mempty, w')
 
 -- block destruction is convoluted...
-maybeDestroyBlock :: Int -> World -> (S.Set Int2,World)
+maybeDestroyBlock :: Int -> World -> (S.Set Int2, World)
 maybeDestroyBlock blid w = case w ^? cWorld . lWorld . blocks . ix blid of
     Just bl | _blHP bl < 1 -> destroyBlock bl w
-    _ -> (mempty,w)
+    _ -> (mempty, w)
 
 maybeDestroyDoor :: Int -> World -> (S.Set Int2, World)
 maybeDestroyDoor drid w = case w ^? cWorld . lWorld . doors . ix drid of
     Just dr | _drHP dr < 1 -> destroyDoor dr w
-    _ -> (mempty,w)
+    _ -> (mempty, w)
 
 destroyDoor :: Door -> World -> (S.Set Int2, World)
 destroyDoor dr w =