diff --git a/src/Dodge/Base/Collide.hs b/src/Dodge/Base/Collide.hs
index d3d370ff6..1184f9004 100644
--- a/src/Dodge/Base/Collide.hs
+++ b/src/Dodge/Base/Collide.hs
@@ -13,17 +13,12 @@
 -}
 module Dodge.Base.Collide (
     collidePoint,
-    collideSegCrs,
-    collidePointWallsFilterStream,
+    collidePointWallsFilter,
     collidePointTestFilter,
     overlapSegWalls,
     overlapSegCrs,
-    overlap1SegCrs,
     bounceBall,
     bouncePoint,
-    sortStreamOn,
-    minStreamOn,
-    collideCircWallsStream,
     circOnSomeWall,
     circOnAnyCr,
     overlapCircWalls,
@@ -49,16 +44,6 @@ import Dodge.Zoning
 import FoldableHelp
 import Geometry
 import qualified IntMapHelp as IM
-import qualified Streaming.Prelude as S
-import StreamingHelp
-
---collidePoint :: Point2 -> Point2
---    -> StreamOf Wall
---    -> (Point2, Maybe Wall)
---{-# INLINE collidePoint #-}
---collidePoint sp ep = runIdentity . S.fold_ findPoint (ep, Nothing) id
---  where
---    findPoint (p,mwl) wl = maybe (p,mwl) (,Just wl) . uncurry (intersectSegSeg sp p) . _wlLine $ wl
 
 collidePoint ::
     Point2 ->
@@ -70,39 +55,15 @@ collidePoint sp ep = foldl' findPoint (ep, Nothing)
   where
     findPoint (p, mwl) wl = maybe (p, mwl) (,Just wl) . uncurry (intersectSegSeg sp p) . _wlLine $ wl
 
-overlap1SegCrs ::
+overlapSegCrs ::
     Point2 ->
     Point2 ->
     [Creature] ->
     [(Point2, Creature)]
-{-# INLINE overlap1SegCrs #-}
-overlap1SegCrs sp ep =
-    mapMaybe
-        (\cr -> (,cr) <$> listToMaybe (intersectCircSeg (_crPos cr) (_crRad cr) sp ep))
-
-overlapSegCrs ::
-    Point2 ->
-    Point2 ->
-    StreamOf Creature ->
-    StreamOf ([Point2], Creature)
 {-# INLINE overlapSegCrs #-}
 overlapSegCrs sp ep =
-    S.mapMaybe
-        (\cr -> f cr $ intersectCircSeg (_crPos cr) (_crRad cr) sp ep)
-  where
-    f _ [] = Nothing
-    f cr ps = Just (ps, cr)
-
-collideSegCrs ::
-    Point2 ->
-    Point2 ->
-    StreamOf Creature ->
-    (Point2, Maybe Creature)
-{-# INLINE collideSegCrs #-}
-collideSegCrs sp ep = runIdentity . S.fold_ findPoint (ep, Nothing) id
-  where
-    findPoint (p, mcr) cr =
-        maybe (p, mcr) (,Just cr) $ listToMaybe (intersectCircSeg (_crPos cr) (_crRad cr) sp p)
+    mapMaybe
+        (\cr -> (,cr) <$> listToMaybe (intersectCircSeg (_crPos cr) (_crRad cr) sp ep))
 
 doBounce :: Float -> Point2 -> Point2 -> (Point2, Maybe Wall) -> Maybe (Point2, Point2)
 {-# INLINE doBounce #-}
@@ -124,7 +85,7 @@ bounceBall x sp ep r = doBounce x sp ep . collideCircWalls sp ep r
 
 bouncePoint :: (Wall -> Bool) -> Float -> Point2 -> Point2 -> World -> Maybe (Point2, Point2)
 {-# INLINE bouncePoint #-}
-bouncePoint t x sp ep = doBounce x sp ep . collidePointWallsFilterStream t sp ep
+bouncePoint t x sp ep = doBounce x sp ep . collidePointWallsFilter t sp ep
 
 -- this COULD be written in terms of collidePointWallsFilterStream, TODO test
 -- whether this is actually faster
@@ -142,9 +103,9 @@ collidePointTestFilter t sp ep =
 --    . S.any_ (isJust . uncurry (intersectSegSeg sp ep) . _wlLine)
 --    . S.filter t
 
-collidePointWallsFilterStream :: (Wall -> Bool) -> Point2 -> Point2 -> World -> (Point2, Maybe Wall)
-{-# INLINE collidePointWallsFilterStream #-}
-collidePointWallsFilterStream t sp ep =
+collidePointWallsFilter :: (Wall -> Bool) -> Point2 -> Point2 -> World -> (Point2, Maybe Wall)
+{-# INLINE collidePointWallsFilter #-}
+collidePointWallsFilter t sp ep =
     collidePoint sp ep
         . filter t
         . wlsNearSeg sp ep
@@ -225,31 +186,6 @@ collideCircWalls sp ep rad = foldl' findPoint (ep, Nothing)
       where
         f = (+.+) (rad *.* normalizeV (vNormal $ a -.- b))
 
--- | note that this does not push the circle away from the wall at all
-collideCircWallsStream ::
-    Point2 ->
-    Point2 ->
-    Float ->
-    StreamOf Wall ->
-    (Point2, Maybe Wall)
-{-# INLINE collideCircWallsStream #-}
-collideCircWallsStream sp ep rad = runIdentity . S.fold_ findPoint (ep, Nothing) id
-  where
-    findPoint (p, mwl) wl =
-        maybe (p, mwl) (,Just wl) . uncurry (intersectSegSeg sp p)
-            . shiftbyrad
-            . _wlLine
-            $ wl
-    shiftbyrad (a, b) =
-        bimap
-            f
-            f
-            ( a +.+ rad *.* normalizeV (a -.- b)
-            , b +.+ rad *.* normalizeV (b -.- a)
-            )
-      where
-        f = (+.+) (rad *.* normalizeV (vNormal $ a -.- b))
-
 overlapCircWallsClosest :: Point2 -> Float -> [Wall] -> Maybe (Point2, Wall)
 {-# INLINE overlapCircWallsClosest #-}
 overlapCircWallsClosest p r =
diff --git a/src/Dodge/Bullet.hs b/src/Dodge/Bullet.hs
index 6178d204d..beef6b15b 100644
--- a/src/Dodge/Bullet.hs
+++ b/src/Dodge/Bullet.hs
@@ -17,7 +17,7 @@ import Geometry
 import qualified IntMapHelp as IM
 import LensHelp
 import qualified ListHelp as List
-import StreamingHelp
+import Data.Bifunctor
 
 updateBullet :: World -> Bullet -> (World, Maybe Bullet)
 updateBullet w bu = case _buDelayFraction bu of
diff --git a/src/Dodge/Creature/Action.hs b/src/Dodge/Creature/Action.hs
index 0dfd89717..eac196d33 100644
--- a/src/Dodge/Creature/Action.hs
+++ b/src/Dodge/Creature/Action.hs
@@ -209,7 +209,7 @@ unsafeBlinkAction cr w
                 .:~ Damage ENTERREMENT 10000 mwp mwp mwp NoDamageEffect
   where
     success = fromMaybe True $ do
-        wl <- snd $ collidePointWallsFilterStream (const True) mwp cpos w
+        wl <- snd $ collidePointWallsFilter (const True) mwp cpos w
         return (isLHS mwp `uncurry` _wlLine wl)
     distR = 120
     distortionBulge =
diff --git a/src/Dodge/Data/World.hs b/src/Dodge/Data/World.hs
index d79f43c78..daf4e9b34 100644
--- a/src/Dodge/Data/World.hs
+++ b/src/Dodge/Data/World.hs
@@ -24,7 +24,6 @@ import Dodge.Data.SoundOrigin
 import Geometry.Data
 import SDL (MouseButton, Scancode)
 import Sound.Data
-import StreamingHelp
 import System.Random
 
 data World = World
@@ -59,10 +58,4 @@ data WorldHammer
     | DoubleMouseHam
     deriving (Eq, Ord, Show, Read, Enum, Bounded)
 
-type HitEffect' =
-    Flame ->
-    StreamOf (Point2, Either Creature Wall) ->
-    World ->
-    (World, Maybe Flame)
-
 makeLenses ''World
diff --git a/src/Dodge/Data/Zoning.hs b/src/Dodge/Data/Zoning.hs
index 74158a76b..4adfd27ce 100644
--- a/src/Dodge/Data/Zoning.hs
+++ b/src/Dodge/Data/Zoning.hs
@@ -1,7 +1,8 @@
 {-# LANGUAGE StrictData #-}
 {-# LANGUAGE TemplateHaskell #-}
 
-module Dodge.Data.Zoning where
+module Dodge.Data.Zoning 
+    where
 
 import Control.Lens
 import qualified Data.IntSet as IS
diff --git a/src/Dodge/Item/Weapon/BatteryGuns.hs b/src/Dodge/Item/Weapon/BatteryGuns.hs
index 1bf7ca6d0..5905e98ef 100644
--- a/src/Dodge/Item/Weapon/BatteryGuns.hs
+++ b/src/Dodge/Item/Weapon/BatteryGuns.hs
@@ -206,7 +206,7 @@ aTractorBeam _ cr w = w & cWorld . tractorBeams .:~ tractorBeamAt spos outpos di
     spos = cpos +.+ (_crRad cr + 10) *.* unitVectorAtAngle dir
     xpos = cpos +.+ 400 *.* unitVectorAtAngle dir
     dir = _crDir cr
-    outpos = fst $ collidePointWallsFilterStream (const True) cpos xpos w
+    outpos = fst $ collidePointWallsFilter (const True) cpos xpos w
     power = _attractionPower . _itParams $ _crInv cr IM.! crSel cr
 
 tractorBeamAt :: Point2 -> Point2 -> Float -> Point2 -> TractorBeam
diff --git a/src/Dodge/Item/Weapon/Shatter.hs b/src/Dodge/Item/Weapon/Shatter.hs
index 41897eff4..13e54328e 100644
--- a/src/Dodge/Item/Weapon/Shatter.hs
+++ b/src/Dodge/Item/Weapon/Shatter.hs
@@ -13,7 +13,7 @@ shootShatter :: Item -> Creature -> World -> World
 shootShatter it cr w =
     maybe w (uncurry $ shatterWall w sp ep) $
         sequence $
-            collidePointWallsFilterStream canshatter sp ep w
+            collidePointWallsFilter canshatter sp ep w
   where
     canshatter wl = case _wlOpacity wl of
         Opaque -> True
diff --git a/src/Dodge/LoadSeed.hs b/src/Dodge/LoadSeed.hs
index e8c116a83..75671664e 100644
--- a/src/Dodge/LoadSeed.hs
+++ b/src/Dodge/LoadSeed.hs
@@ -1,11 +1,12 @@
-module Dodge.LoadSeed
-    where
+module Dodge.LoadSeed where
+
+import Data.Functor
 import System.Directory
 import Text.Read
 
 loadSeed :: IO (Maybe Int)
-loadSeed = maybeReadFile "saveSlot/seed" >>= (return . (>>= readMaybe))
-    
+loadSeed = maybeReadFile "saveSlot/seed" <&> (>>= readMaybe)
+
 maybeReadFile :: String -> IO (Maybe String)
 maybeReadFile fpath = do
     fexists <- doesFileExist fpath
diff --git a/src/Dodge/Tesla/Arc/Default.hs b/src/Dodge/Tesla/Arc/Default.hs
index b96ec68b9..ec5b9324c 100644
--- a/src/Dodge/Tesla/Arc/Default.hs
+++ b/src/Dodge/Tesla/Arc/Default.hs
@@ -35,7 +35,7 @@ defaultArcStep itparams w (ArcStep p dir _) = do
         mwl =
             listToMaybe
                 . sortOn (dist p . fst)
-                . mapMaybe (\q -> sequence $ collidePointWallsFilterStream (const True) p (center +.+ q) w)
+                . mapMaybe (\q -> sequence $ collidePointWallsFilter (const True) p (center +.+ q) w)
                 -- collidePointWallsWall and wlsnearpoint
                 $ polyCirc 6 csize
         f (q, wl) = ArcStep q dir (WlID $ _wlID wl)
diff --git a/src/Dodge/Update/Camera.hs b/src/Dodge/Update/Camera.hs
index cc762d1d4..ed162f742 100644
--- a/src/Dodge/Update/Camera.hs
+++ b/src/Dodge/Update/Camera.hs
@@ -227,8 +227,8 @@ getViewpoints p w =
 gameRoomViewpoints :: Point2 -> GameRoom -> [Point2]
 {-# INLINE gameRoomViewpoints #-}
 gameRoomViewpoints p gr =
-    (_grViewpoints gr)
-        <> map extend ((_grViewpointsEx gr) <> map addDir (_grLinkDirs gr))
+    _grViewpoints gr
+        <> map extend (_grViewpointsEx gr <> map addDir (_grLinkDirs gr))
   where
     extend outp = p +.+ maxViewDistance *.* squashNormalizeV (outp -.- p)
     addDir a = p +.+ unitVectorAtAngle a
diff --git a/src/Dodge/WorldEvent/ThingsHit.hs b/src/Dodge/WorldEvent/ThingsHit.hs
index a4a8c18bc..74d885ad9 100644
--- a/src/Dodge/WorldEvent/ThingsHit.hs
+++ b/src/Dodge/WorldEvent/ThingsHit.hs
@@ -44,7 +44,7 @@ crsHit sp ep w
     | sp == ep = mempty
     | otherwise =
         sortOn (dist sp . fst)
-            . overlap1SegCrs sp ep
+            . overlapSegCrs sp ep
             . mapMaybe (\cid -> w ^? cWorld . creatures . ix cid)
             . IS.toList
             . crixsNearSeg sp ep
diff --git a/src/Dodge/Zone/Update.hs b/src/Dodge/Zone/Update.hs
index 727bebb4e..f54c79c35 100644
--- a/src/Dodge/Zone/Update.hs
+++ b/src/Dodge/Zone/Update.hs
@@ -1,5 +1,5 @@
 module Dodge.Zone.Update (
-    updateZoning,
+    --updateZoning,
 ) where
 
 import Dodge.Data.Zoning