diff --git a/src/Dodge/Creature/Impulse/UseItem.hs b/src/Dodge/Creature/Impulse/UseItem.hs
index 6ac97e8ee..4708f5faf 100644
--- a/src/Dodge/Creature/Impulse/UseItem.hs
+++ b/src/Dodge/Creature/Impulse/UseItem.hs
@@ -40,16 +40,6 @@ useRootItem crid w = (worldEventFlags . at InventoryChange ?~ ()) . fromMaybe w
   where
     fst3 (x,_,_) = x
 
---  where
---    UseHotkey{} -> doequipmentchange
---    UseEquip{} -> doequipmentchange
---    (UseConsume eff) -> useC eff (_ldtValue itmtree) cr w
---    UseCraft{} -> w
---    UseAttach{} -> selectUse itmtree cr  w
---    UseAmmoMag{} -> w
---    UseScope{} -> w
---    UseBulletMod{} -> w
-
 toggleEquipmentAt :: Int -> Creature -> World -> World
 toggleEquipmentAt invid cr w = case getEquipmentAllocation w of
     DoNotMoveEquipment -> w
@@ -108,8 +98,7 @@ useItemLeftClick cr w = fromMaybe w $ do
         UseHotkey{} -> return $ doequipmentchange invid
         UseAmmoMag{} -> return w
         UseAttach{} -> do
-            itmtree <- invTrees (_crInv cr) ^? ix invid
-            return $ selectUse itmtree cr w
+            return $ selectUse itm cr w
         _ -> Nothing
   where
     doequipmentchange invid = fromMaybe w $ do
diff --git a/src/Dodge/Item/Grammar.hs b/src/Dodge/Item/Grammar.hs
index 920729adb..33a0306ed 100644
--- a/src/Dodge/Item/Grammar.hs
+++ b/src/Dodge/Item/Grammar.hs
@@ -1,6 +1,5 @@
 module Dodge.Item.Grammar (
     invLDT,
-    invTrees,
     invAdj,
     invRootMap,
     invRootTrees,
@@ -9,7 +8,6 @@ module Dodge.Item.Grammar (
 ) where
 
 import Control.Applicative
-import Data.Bifunctor
 import qualified Data.IntMap.Strict as IM
 import Data.Maybe
 import Dodge.Data.ComposedItem
@@ -205,19 +203,6 @@ invAdj = IM.unions . map g . invLDT
             (error ("invAdj item " ++ show (_itID itm) ++ " location: " ++ show (itm ^? itLocation)))
             $ itm ^? itLocation . ilInvID
 
--- returns an intmap with trees for all items
-invTrees :: IM.IntMap Item -> IM.IntMap (LabelDoubleTree ComposeLinkType Item)
-invTrees = fmap (first _iatType) . invTrees'
-
--- returns an intmap with trees for all items
-invTrees' :: IM.IntMap Item -> IM.IntMap (LabelDoubleTree ItemLink Item)
---invTrees' = IM.unions . map (ldtToIM getindex . fmap (^. _1)) . map (fmap (\(x, y, _) -> (x, y))) . invLDT
-invTrees' = IM.unions . map (ldtToIM getindex . fmap (^. _1)) . invLDT
-  where
-    getindex i =
-        fromMaybe (error "in invTrees try to get non-inventory item tree") $
-            i ^? itLocation . ilInvID
-
 -- returns an intmap with trees for (only!) root items, indexed by inventory position
 invRootTrees :: IM.IntMap Item -> IM.IntMap (LabelDoubleTree ItemLink ComposedItem)
 invRootTrees = IM.fromDistinctAscList . reverse . map getid . invLDT
diff --git a/src/Dodge/SelectUse.hs b/src/Dodge/SelectUse.hs
index 275030ce8..e52ecc10d 100644
--- a/src/Dodge/SelectUse.hs
+++ b/src/Dodge/SelectUse.hs
@@ -4,17 +4,15 @@ import Control.Monad
 import qualified SDL
 import Control.Lens
 import Data.Maybe
-import Dodge.Data.ComposedItem
-import Dodge.Data.DoubleTree
 import Dodge.Data.World
 import Dodge.Payload
 
-selectUse :: LabelDoubleTree ComposeLinkType Item -> Creature -> World -> World
-selectUse ittree _ w = fromMaybe w $ do
+selectUse :: Item -> Creature -> World -> World
+selectUse itm _ w = fromMaybe w $ do
     lbtime <- w ^? input . mouseButtons . ix SDL.ButtonLeft 
     guard $ lbtime == 0
-    itid <- ittree ^? ldtValue . itID
-    pjid <- ittree ^? ldtValue . itUse . uaParams . apLinkedProjectile . _Just
+    itid <- itm ^? itID
+    pjid <- itm ^? itUse . uaParams . apLinkedProjectile . _Just
     thepj <- w ^? cWorld . lWorld . projectiles . ix pjid
     return $
         w