From 508b848204c5e8e52439d5371667877eb18ce2e0 Mon Sep 17 00:00:00 2001
From: justin <justin.g.kruger@gmail.com>
Date: Thu, 19 Mar 2026 11:40:49 +0000
Subject: [PATCH] Function for adding random lights to roomNGon

---
 src/Dodge/Data/GenWorld.hs                  |  13 +-
 src/Dodge/Data/Room.hs                      |   5 +
 src/Dodge/Floor.hs                          |   2 +-
 src/Dodge/Layout.hs                         | 143 +++++----
 src/Dodge/LockAndKey.hs                     |   5 +-
 src/Dodge/Placement/Instance/LightSource.hs |   5 +-
 src/Dodge/Placement/PlaceSpot.hs            |   6 +-
 src/Dodge/Room/Airlock.hs                   |   2 +-
 src/Dodge/Room/Containing.hs                |  24 +-
 src/Dodge/Room/Door.hs                      |   2 +-
 src/Dodge/Room/LasTurret.hs                 |  19 +-
 src/Dodge/Room/Modify.hs                    |  78 ++++-
 src/Dodge/Room/Ngon.hs                      |   1 +
 src/Dodge/Room/Room.hs                      |   8 +-
 src/Dodge/Room/SensorDoor.hs                |  51 ++--
 src/Dodge/Room/Start.hs                     |   5 +-
 src/Dodge/Room/Tutorial.hs                  |  12 +-
 src/Dodge/TestString.hs                     |   7 +-
 src/RandomHelp.hs                           |  92 +++---
 tags                                        | 309 ++++++++++----------
 20 files changed, 453 insertions(+), 336 deletions(-)

diff --git a/src/Dodge/Data/GenWorld.hs b/src/Dodge/Data/GenWorld.hs
index 269c9999d..648fda0ed 100644
--- a/src/Dodge/Data/GenWorld.hs
+++ b/src/Dodge/Data/GenWorld.hs
@@ -100,6 +100,8 @@ data PlacementSpot
     | PSNoShiftCont {_psPos :: Point2, _psRot :: Float}
     | PSPos
         { _psSelect :: RoomPos -> Room -> Maybe (PlacementSpot, RoomPos)
+        -- looks for the first rp for which a rp rm returns Just (ps,rp'),
+        -- replaces the rp with rp'
         , _psRoomEff :: RoomPos -> Room -> Room
         , _psFallback :: Maybe Placement
         }
@@ -138,7 +140,7 @@ data Room = Room
     , _rmPos :: [RoomPos]
     , _rmPath :: S.Set (Point2, Point2)
     , _rmPmnts :: [Placement]
-    , _rmInPmnt :: [(Int,GenWorld -> Placement)]  -- so far as I can tell,
+    , _rmInPmnt :: [(Int,GenWorld -> State StdGen Placement)]  -- so far as I can tell,
         -- the first Int only determines the order in which these are applied
     , _rmBound :: [[Point2]]
     , _rmFloor :: Floor
@@ -162,3 +164,12 @@ makeLenses ''RoomType
 makeLenses ''PSType
 makeLenses ''PlacementSpot
 makeLenses ''Placement
+
+-- I may regret this. I believe it satisfies associativity, but haven't thought
+-- about it too much.
+instance Semigroup Placement where
+    p <> q = p & plIDCont %~ f
+      where
+        f g gw pl = case g gw pl of
+            Nothing -> Just q
+            Just r -> Just $ r & plIDCont %~ f
diff --git a/src/Dodge/Data/Room.hs b/src/Dodge/Data/Room.hs
index c8e540293..9ca258726 100644
--- a/src/Dodge/Data/Room.hs
+++ b/src/Dodge/Data/Room.hs
@@ -38,6 +38,10 @@ data RoomType
         , _rmWidth :: Float
         , _rmHeight :: Float
         }
+    | RoomNgon
+        { _rmngonSides :: Int 
+        , _rmngonSize :: Float
+        }
     deriving (Eq, Ord)
 
 data RoomLinkType
@@ -81,6 +85,7 @@ data RoomPosFlag
     = RoomPosOnGrid {_onGridFromEdges :: S.Set PathFromEdge}
     | RoomPosOffGrid {_offGridFromEdges :: S.Set PathFromEdge}
     | RoomPosOnFloor
+    | ColoredLightRP
     deriving (Eq, Ord, Show)
 
 data UsedPos
diff --git a/src/Dodge/Floor.hs b/src/Dodge/Floor.hs
index 23955ec9f..7ee7952bc 100644
--- a/src/Dodge/Floor.hs
+++ b/src/Dodge/Floor.hs
@@ -25,7 +25,7 @@ initialRoomTree =
     foldMTRS $
         intersperse
             (zoom lyGen doorCor)
-            [ intAnno startRoom
+            [ startRoom
             , passthroughLockKeyLists
                     [(sensorRoomRunPast ElectricSensor, takeOne 
                         [-- CRAFT (ENERGYBALLCRAFT TeslaBall) , 
diff --git a/src/Dodge/Layout.hs b/src/Dodge/Layout.hs
index 52733c74d..c46ef6d84 100644
--- a/src/Dodge/Layout.hs
+++ b/src/Dodge/Layout.hs
@@ -1,25 +1,27 @@
 {-# LANGUAGE TupleSections #-}
+
 module Dodge.Layout (
     generateLevelFromRoomList,
     tilesFromRooms,
     shuffleRoomPos,
 ) where
 
-import qualified Data.Vector.Unboxed as UV
---import Dodge.Path.Translate
+-- import Dodge.Path.Translate
 import qualified Control.Foldl as L
 import Control.Lens
 import Data.Foldable
 import Data.Function
---import Data.Graph.Inductive (labEdges, labNodes)
-import Data.List (nubBy,sortOn)
+import Linear
+-- import Data.Graph.Inductive (labEdges, labNodes)
+import Data.List (nubBy, sortOn)
 import Data.Maybe
 import Data.Tile
---import Data.Traversable
+import qualified Data.Vector.Unboxed as UV
+-- import Data.Traversable
 import Dodge.Data.GenWorld
 import Dodge.Default.Wall
 import Dodge.GameRoom
---import Dodge.Item.Location.Initialize
+-- import Dodge.Item.Location.Initialize
 import Dodge.LevelGen.LevelStructure
 import Dodge.LevelGen.StaticWalls
 import Dodge.Path
@@ -37,29 +39,27 @@ generateLevelFromRoomList gr' w =
     over gwWorld initWallZoning
         . over gwWorld randomCompass
         . over gwWorld setupWorldBounds
---        . over (gwWorld . cWorld . lWorld) initItemLocations
         . doInPlacements
---        . doOutPlacements
         . doIndividualPlacements
         . setTiles
         . worldToGenWorld rs'
-        $ w & cWorld . lWorld . walls .~ wallsFromRooms rs
+        $ w
+            & cWorld . lWorld . walls .~ wallsFromRooms rs
             & cWorld . cwGen . cwgGameRooms .~ gameRoomsFromRooms (IM.elems rs')
             & cWorld . incNode .~ inodes
             & cWorld . incGraph .~ igraph
             & cWorld . incEdges .~ ipairs
-            & incNodeZoning .~ UV.ifoldl' (\m i p -> zonePn (i,p) m) mempty inodes
+            & incNodeZoning .~ UV.ifoldl' (\m i p -> zonePn (i, p) m) mempty inodes
             & incEdgeZoning .~ foldl' (flip (zoneIncPe inodes)) mempty ipairs
   where
     pairs = snapToGrid $ foldMap _rmPath rs
-    (inodes,igraph,ipairs) = pairsToIncGraph pairs
+    (inodes, igraph, ipairs) = pairsToIncGraph pairs
     rs = map doRoomShift $ IM.elems rs'
     rs' = mapM shuffleRoomPos gr' & evalState $ _randGen w
 
-
 randomCompass :: World -> World
-randomCompass w = w 
-    & wCam . camRot .~ (takeOne [0, 0.5 * pi, pi, 1.5 * pi] & evalState $ _randGen w)
+randomCompass w =
+    w & wCam . camRot .~ (takeOne [0, 0.5 * pi, pi, 1.5 * pi] & evalState $ _randGen w)
 
 -- note the order of traversal of the rooms is important
 -- hence the reverse
@@ -70,65 +70,61 @@ setTiles gw = foldr setTile gw . reverse . IM.elems $ _genRooms gw
 setTile :: Room -> GenWorld -> GenWorld
 setTile r gw = case _rmFloor r of
     Tiled{} -> gw
-    InheritFloor -> gw 
-        & genRooms . ix (fromJust (_rmMID r)) . rmFloor .~ Tiled [t & tilePoly .~ poly]
+    InheritFloor ->
+        gw & genRooms . ix (fromJust (_rmMID r)) . rmFloor .~ Tiled [t & tilePoly .~ poly]
   where
     t = case _rmMParent r of
         Nothing -> Tile poly (V2 0 0) (V2 1 0) 16
         Just pid -> head $ _tiles $ _rmFloor $ _genRooms gw IM.! pid
-    poly = orderPolygon . convexHullSafe 
-        . nubBy ((==) `on` roundPoint2) $ concat $ _rmPolys r
+    poly =
+        orderPolygon
+            . convexHullSafe
+            . nubBy ((==) `on` roundPoint2)
+            . concat
+            $ _rmPolys r
 
-shuffleRoomPos :: RandomGen g => Room -> State g Room
+shuffleRoomPos :: (RandomGen g) => Room -> State g Room
 shuffleRoomPos = rmPos shuffle
---shuffleRoomPos rm = do
---    newPos <- shuffle $ _rmPos rm
---    return $ rm & rmPos .~ newPos
 
 doInPlacements :: GenWorld -> GenWorld
-doInPlacements w = foldl' (\gw (i,(_,f)) -> placeSpot i gw (f gw)) w
-    . sortOn (fst.snd)
-    $ foldMap g $ w ^. genRooms
+doInPlacements w =
+    foldl' (\gw (i, (_, f)) -> rplaceSpot i gw (f gw)) w
+        . sortOn (fst . snd)
+        . foldMap g
+        $ w ^. genRooms
   where
-    g rm = (rm^?! rmMID . _Just,) <$> (rm ^. rmInPmnt)
---    let (gw, rms) = mapAccumR doRoomInPlacements w (_genRooms w)
---     in gw & genRooms .~ rms
-
---doRoomInPlacements :: GenWorld -> Room -> (GenWorld, Room)
---doRoomInPlacements w rm = foldr f (w, rm) $ _rmInPmnt rm
---  where
---    f plf (w', r') =  placeSpot (w', r') (plf w')
+    g rm = (rm ^?! rmMID . _Just,) <$> (rm ^. rmInPmnt)
+    rplaceSpot i gw rx = placeSpot i (gw & gwWorld . randGen .~ gen) x
+      where
+        (x,gen) = runState rx (gw ^. gwWorld . randGen)
 
 doIndividualPlacements :: GenWorld -> GenWorld
 doIndividualPlacements gw = foldl' doRoomPlacements gw (_genRooms gw)
 
 doRoomPlacements :: GenWorld -> Room -> GenWorld
-doRoomPlacements w rm = foldl' (placeSpot i) (w & genRooms . ix i . rmPmnts .~ mempty) 
-    . sortOn  plPriority $ _rmPmnts rm
+doRoomPlacements w rm =
+    foldl' (placeSpot i) (w & genRooms . ix i . rmPmnts .~ mempty)
+        . sortOn plPriority
+        $ _rmPmnts rm
   where
     i = rm ^?! rmMID . _Just
 
 plPriority :: Placement -> Int
 plPriority pl = case pl ^. plType of
-    PutChasm {} -> 0 
-    PutBlock {} -> 1
-    PutDoor {} -> 2
+    PutChasm{} -> 0
+    PutBlock{} -> 1
+    PutDoor{} -> 2
     _ -> 3
 
---placeSpot' :: Int -> GenWorld -> Placement -> GenWorld
---placeSpot' = placeSpot
---placeSpot' i gw x = 
---    let (gw',r') = placeSpot (gw,(gw ^?! genRooms . ix i)) x
---    in gw' & genRooms . ix i .~ r'
-
 setupWorldBounds :: World -> World
 setupWorldBounds w =
-    w & cWorld . cwGen . cwgWorldBounds
-        %~ ( (bdMinX .~ f minx)
-                . (bdMaxX .~ f maxx)
-                . (bdMinY .~ f miny)
-                . (bdMaxY .~ f maxy)
-           )
+    w
+        & cWorld . cwGen . cwgWorldBounds
+            %~ ( (bdMinX .~ f minx)
+                    . (bdMaxX .~ f maxx)
+                    . (bdMinY .~ f miny)
+                    . (bdMaxY .~ f maxy)
+               )
   where
     f = fromMaybe 0
     ps = IM.map (fst . _wlLine) $ w ^. cWorld . lWorld . walls -- _walls (_cWorld w)
@@ -162,14 +158,17 @@ gameRoomFromRoom rm =
     GameRoom
         { _grViewpoints =
             map doshift $
-                _rmViewpoints rm ++ (map fst . foldl' (flip cutWalls) [] $ _rmPolys rm)
+                _rmViewpoints rm
+                    ++ (map fst . foldl' (flip cutWalls) [] $ _rmPolys rm)
                     ++ mapMaybe filterUnusedLinks (_rmPos rm)
         , _grViewpointsEx = concatMap filterUsedLinks (_rmPos rm)
         , _grBound =
-            map doshift $
-                expandPolyCorners 50 . convexHullSafe . nubBy closePoints
+            map doshift
+                $ expandPolyCorners 50
+                    . convexHullSafe
+                    . nubBy closePoints
                     . concat
-                    $ _rmBound rm ++ _rmPolys rm
+                $ _rmBound rm ++ _rmPolys rm
         , _grRmBounds = map (map doshift) $ _rmBound rm
         , _grDir = getDir $ _rmPos rm
         , _grLinkDirs = mapMaybe undir $ _rmPos rm
@@ -180,8 +179,8 @@ gameRoomFromRoom rm =
     doubleShift p a =
         map
             doshift
-            [ p +.+ 10 *.* unitVectorAtAngle a
-            , p -.- 10 *.* unitVectorAtAngle a
+            [ p + 10 *^ unitVectorAtAngle a
+            , p - 10 *^ unitVectorAtAngle a
             ]
     filterUnusedLinks rp = case _rpType rp of
         UnusedLink{} -> Just $ _rpPos rp
@@ -210,36 +209,36 @@ getTiles fl = case fl of
     Tiled xs -> xs
     _ -> error "tiles not correctly set for some room"
 
---divideWall :: Wall -> [Wall]
---divideWall wl
+-- divideWall :: Wall -> [Wall]
+-- divideWall wl
 --    = let (a,b) = _wlLine wl
 --          ps = divideLine (zoneSize * 2) a b
 --      in  zipWith (\ x y -> wl & wlLine .~ (x,y) ) (init ps) (tail ps)
 
---divideWallIn :: Wall -> IM.IntMap Wall -> IM.IntMap Wall
---divideWallIn wl wls =
+-- divideWallIn :: Wall -> IM.IntMap Wall -> IM.IntMap Wall
+-- divideWallIn wl wls =
 --    let (wl':newWls) = divideWall wl
 --        k = IM.newKey wls
 --        newWls' = zipWith (\i w -> w {_wlID = i}) [k..] newWls
 --    in  foldl' (flip $ \w -> IM.insert (_wlID w) w) wls (wl':newWls')
 --
---divideWalls :: IM.IntMap Wall -> IM.IntMap Wall
---divideWalls wls = foldl' (flip divideWallIn) wls wls
+-- divideWalls :: IM.IntMap Wall -> IM.IntMap Wall
+-- divideWalls wls = foldl' (flip divideWallIn) wls wls
 
---insertInZone :: Int -> Int -> a -> IM.IntMap (IM.IntMap a) -> IM.IntMap (IM.IntMap a)
---insertInZone x y obj = IM.insertWith f x $ IM.singleton y obj
+-- insertInZone :: Int -> Int -> a -> IM.IntMap (IM.IntMap a) -> IM.IntMap (IM.IntMap a)
+-- insertInZone x y obj = IM.insertWith f x $ IM.singleton y obj
 --    where f _ = IM.insert y obj
 
---shiftRoomTree :: Tree Room -> Tree Room
---shiftRoomTree (Node t []) = Node t []
---shiftRoomTree (Node t ts) = Node t
+-- shiftRoomTree :: Tree Room -> Tree Room
+-- shiftRoomTree (Node t []) = Node t []
+-- shiftRoomTree (Node t ts) = Node t
 --    $ zipWith (\l -> shiftRoomTree . applyToRoot (shiftRoomToLink l))
 --    (_rmLinks t)
 --    ts
 
---shiftRoomTreeConstruction :: Tree Room -> [Tree Room]
---shiftRoomTreeConstruction (Node t []) = [Node t []]
---shiftRoomTreeConstruction (Node t ts) = (Node t [] :) $ concat $
+-- shiftRoomTreeConstruction :: Tree Room -> [Tree Room]
+-- shiftRoomTreeConstruction (Node t []) = [Node t []]
+-- shiftRoomTreeConstruction (Node t ts) = (Node t [] :) $ concat $
 --    zipWith (\l -> shiftRoomTreeConstruction . applyToRoot (shiftRoomBy l . f))
 --    (_rmLinks t)
 --    ts
@@ -248,8 +247,8 @@ getTiles fl = case fl of
 --      where
 --        (p,a) = last $ _rmLinks r
 
---addTile :: Float -> Room -> Room
---addTile z r
+-- addTile :: Float -> Room -> Room
+-- addTile z r
 --    | not (null (_rmFloor r)) || null rp = r
 --    | otherwise = r & rmFloor .~ [makeTileFromPoly poly z]
 --  where
diff --git a/src/Dodge/LockAndKey.hs b/src/Dodge/LockAndKey.hs
index 22a0b49d1..2b9292e2b 100644
--- a/src/Dodge/LockAndKey.hs
+++ b/src/Dodge/LockAndKey.hs
@@ -25,9 +25,8 @@ lockRoomMultiItems =
 
 lockRoomKeyItems :: [(Int -> State LayoutVars (MetaTree Room String), State LayoutVars ItemType)]
 lockRoomKeyItems =
-    [ (lasCenSensEdge, takeOne [LASER,HELD TESLACOIL, HELD FLATSHIELD])
---    [ (lasCenSensEdge, takeOne [HELD RLAUNCHER, LASER, HELD SPARKGUN, HELD FLATSHIELD])
---    , (sensorRoomRunPast LaserSensor, return LASER)
+--    [ (lasCenSensEdge, takeOne [LASER,HELD TESLACOIL, HELD FLATSHIELD])
+    [ (sensorRoomRunPast LaserSensor, return LASER)
 --    , (const slowDoorRoomRunPast, return $ HELD (MINIGUNX 3))
 --    , (const longRoomRunPast, takeOne [HELD SNIPERRIFLE, HELD FLATSHIELD])
 --    , (const glassLessonRunPast, takeOne [LASER])
diff --git a/src/Dodge/Placement/Instance/LightSource.hs b/src/Dodge/Placement/Instance/LightSource.hs
index 82ae608ae..7150ed097 100644
--- a/src/Dodge/Placement/Instance/LightSource.hs
+++ b/src/Dodge/Placement/Instance/LightSource.hs
@@ -181,7 +181,8 @@ spanColLightBlackI col h a b =
     V2 x y = 0.5 *.* (a +.+ b)
 
 spanLightI :: Point2 -> Point2 -> Placement
-spanLightI = spanColLightI 0.75 50.1
+--spanLightI = spanColLightI 0.75 50.1
+spanLightI = spanColLightI 0.75 95
 
 spanLightY :: Point2 -> Point2 -> Point2 -> Point2 -> Placement
 spanLightY l x y z = 
@@ -191,7 +192,7 @@ spanLightY l x y z =
         sps0 $ f z
   where
     f p = putShape $ thinHighBar h p (l + normalize (l-p))
-    h = 50
+    h = 95
 
 --extendAway :: Point2 -> Point2 -> Point2
 --extendAway p x = p +.+ squashNormalizeV (p -.- x)
diff --git a/src/Dodge/Placement/PlaceSpot.hs b/src/Dodge/Placement/PlaceSpot.hs
index 16ca7e96a..a94fd8ee5 100644
--- a/src/Dodge/Placement/PlaceSpot.hs
+++ b/src/Dodge/Placement/PlaceSpot.hs
@@ -33,7 +33,7 @@ import NewInt
 placeSpot :: Int -> GenWorld -> Placement -> GenWorld
 placeSpot rid w plmnt = case plmnt ^. plSpot of
     PSRoomRand i f -> placeSpotRoomRand rid i f plmnt w
-    PSPos extract eff fallback -> placeSpotUsingLink w rid plmnt extract eff fallback
+    PSPos extract eff fallback -> placeSpotUsingRoomPos w rid plmnt extract eff fallback
     _ -> placePlainPSSpot w rid plmnt shift
   where
     shift = _rmShift $ w ^?! genRooms . ix rid
@@ -62,7 +62,7 @@ placePlainPSSpot w rid plmnt shift = case plmnt ^. plType of
             (w' & genRooms . ix rid . rmPmnts .:~ newplmnt)
 
 -- this should be tidied up
-placeSpotUsingLink ::
+placeSpotUsingRoomPos ::
     GenWorld ->
     Int ->
     Placement ->
@@ -70,7 +70,7 @@ placeSpotUsingLink ::
     (RoomPos -> Room -> Room) ->
     Maybe Placement ->
     GenWorld
-placeSpotUsingLink w rid plmnt extract eff fallback =
+placeSpotUsingRoomPos w rid plmnt extract eff fallback =
     case searchedPoss (w ^?! genRooms . ix rid . rmPos) of
         Just (ps, rmposs) ->
             placeSpot
diff --git a/src/Dodge/Room/Airlock.hs b/src/Dodge/Room/Airlock.hs
index cc1825809..df7cd9a5d 100644
--- a/src/Dodge/Room/Airlock.hs
+++ b/src/Dodge/Room/Airlock.hs
@@ -52,7 +52,7 @@ decontamRoom i =
                ]
         --        & rmOutPmnt . at i ?~
         --               analyser (NoItemZone ps) (PS 50 0) (PS mcpos 0)
-        & rmInPmnt .~ [(0, f)]
+        & rmInPmnt .~ [(0, return . f)]
         & rmBound .~ [rectNSWE 75 15 0 40, switchcut]
   where
     f gw = fromMaybe (error "tried to put a door using an empty placement list") $ do
diff --git a/src/Dodge/Room/Containing.hs b/src/Dodge/Room/Containing.hs
index ccf1d5f6d..1190ca7fa 100644
--- a/src/Dodge/Room/Containing.hs
+++ b/src/Dodge/Room/Containing.hs
@@ -1,6 +1,7 @@
---{-# LANGUAGE TupleSections #-}
+-- {-# LANGUAGE TupleSections #-}
 module Dodge.Room.Containing where
 
+import Control.Monad
 import Dodge.Cleat
 import Dodge.Data.GenWorld
 import Dodge.Item.Display
@@ -15,28 +16,27 @@ import Dodge.Tree
 import Geometry
 import LensHelp
 import RandomHelp
-import Control.Monad
 
-roomsContaining :: RandomGen g => [Creature] -> [Item] -> State g (MetaTree Room String)
+roomsContaining :: (RandomGen g) => [Creature] -> [Item] -> State g (MetaTree Room String)
 roomsContaining crs its = tToBTree str <$> roomsContaining' crs its
   where
     str = "roomsContaining " ++ concatMap _crName crs ++ concatMap (head . basicItemDisplay) its
 
-roomsContaining' :: RandomGen g => [Creature] -> [Item] -> State g (Tree Room)
+roomsContaining' :: (RandomGen g) => [Creature] -> [Item] -> State g (Tree Room)
 roomsContaining' crs its = do
     endroom <-
         join $
             takeOne
-                [-- roomPillarsSquare <&> rmPmnts ++.~ crsItmsUnused crs its
-                 --, randomFourCornerRoomCrsIts crs its
-                 --, tanksRoom crs its
---                 tanksPipesRoom <&> rmPmnts ++.~ crsItmsUnused crs its
-                 roomPillarsContaining crs its
---                , roomPillarsPassage <&> rmPmnts ++.~ crsItmsUnused crs its
+                [ roomPillarsSquare <&> rmPmnts ++.~ crsItmsUnused crs its
+                , randomFourCornerRoomCrsIts crs its
+                , tanksRoom crs its
+                , tanksPipesRoom <&> rmPmnts ++.~ crsItmsUnused crs its
+                , roomPillarsContaining crs its
+                , roomPillarsPassage <&> rmPmnts ++.~ crsItmsUnused crs its
                 ]
     return (pure $ cleatOnward endroom)
 
-roomPillarsContaining :: RandomGen g => [Creature] -> [Item] -> State g Room
+roomPillarsContaining :: (RandomGen g) => [Creature] -> [Item] -> State g Room
 roomPillarsContaining crs itms = do
     (w, wn) <- takeOne [(240, 2), (340, 3)]
     (h, hn) <- takeOne [(240, 2), (340, 3)]
@@ -47,7 +47,7 @@ crsItmsUnused crs itms =
     map (\it -> sps0 (PutFlIt it) & plSpot .~ anyUnusedSpot) itms
         ++ map (\cr -> sps0 (PutCrit cr) & plSpot .~ unusedSpotAwayFromLink 50) crs
 
-pedestalRoom :: RandomGen g => Item -> State g Room
+pedestalRoom :: (RandomGen g) => Item -> State g Room
 pedestalRoom it = do
     let flit = PutFlIt it
     x <- state $ randomR (150, 250)
diff --git a/src/Dodge/Room/Door.hs b/src/Dodge/Room/Door.hs
index 3e3d25849..b68f5a51f 100644
--- a/src/Dodge/Room/Door.hs
+++ b/src/Dodge/Room/Door.hs
@@ -40,7 +40,7 @@ triggerDoorRoom i =
         -- note no bounds
         }
   where
-    f gw = fromMaybe (error "tried to put a door using an empty placement list") $ do
+    f gw = return $ fromMaybe (error "tried to put a door using an empty placement list") $ do
         pmnt <- gw ^? genPmnt . ix i
         return $ putDoubleDoor defaultDoorWall (cond pmnt) (V2 0 20) (V2 40 20) 2
     cond pmnt = WdTrig $ fromJust (_plMID pmnt)
diff --git a/src/Dodge/Room/LasTurret.hs b/src/Dodge/Room/LasTurret.hs
index 1ffbcca9f..4bbd104a6 100644
--- a/src/Dodge/Room/LasTurret.hs
+++ b/src/Dodge/Room/LasTurret.hs
@@ -17,6 +17,7 @@ module Dodge.Room.LasTurret (
     storeRoomID,
 ) where
 
+import Dodge.Room.Modify
 import Color
 import Control.Monad
 import Data.Foldable
@@ -148,9 +149,9 @@ lasSensorTurretTest = do
     let cenroom =
             cenroom''
                 & rmInPmnt
-                <>~ [ (0, alight pi . f i)
-                    , (0, alight (0.5 * pi) . f i)
-                    , (0, alight (1.5 * pi) . f i)
+                <>~ [ (0, return . alight pi . f i)
+                    , (0, return . alight (0.5 * pi) . f i)
+                    , (0, return . alight (1.5 * pi) . f i)
                     ]
     rToOnward "lasSensorTurretTest" $
         treePost
@@ -166,7 +167,7 @@ lasCenSensEdge n = do
     (i, cenroom') <- storeRoomID =<< shuffleLinks =<< lightSensByDoor n =<< cenLasTur
     lshape <- takeOne [vShape, lShape, jShape, liShape]
     let alight a rp = mntLSCond (fmap (fmap $ colorSH black) lshape) (PS (rotateV a $ _rpPos rp) (a + _rpDir rp))
-        blight a = (0, alight a . f i)
+        blight a = (0, return . alight a . f i)
     let cenroom = cenroom' & rmInPmnt <>~ map blight [pi, (0.5 * pi), (1.5 * pi)]
     let doorroom = triggerDoorRoom n
     rToOnward "lasCenSensEdge" $
@@ -181,16 +182,6 @@ lasCenSensEdge n = do
     isused UsedOutLink{_rplsChildNum = 0} = True
     isused _ = False
 
-storeRoomID :: Room -> State LayoutVars (Int, Room)
-storeRoomID x = do
-    i <- nextLayoutInt
-    return (i, x & rmPmnts .:~ sps0 (PutWorldUpdate (f i)))
-  where
-    f i rid _ gw = gw & genInts . at i ?~ (gw ^?! genRooms . ix rid . rmMID . _Just)
-
--- unsafe! assumes that storeRoomID has been called
-getRoomFromID :: Int -> GenWorld -> Room
-getRoomFromID i gw = gw ^?! genRooms . ix (gw ^?! genInts . ix i)
 
 lasRunYinYang :: (RandomGen g) => State g (MetaTree Room String)
 lasRunYinYang = do
diff --git a/src/Dodge/Room/Modify.hs b/src/Dodge/Room/Modify.hs
index 9c78e89a8..6e12ad775 100644
--- a/src/Dodge/Room/Modify.hs
+++ b/src/Dodge/Room/Modify.hs
@@ -1,4 +1,76 @@
-module Dodge.Room.Modify 
-    ( module Dodge.Room.Modify.Girder
-    ) where
+module Dodge.Room.Modify (
+    module Dodge.Room.Modify.Girder,
+    storeRoomID,
+    getRoomFromID,
+    addLightsNGon,
+    removeLights,
+) where
+
+import Color
+import Shape
+import Dodge.Placement.Instance.LightSource
+import Dodge.LevelGen.PlacementHelper
+import LensHelp
+import Dodge.Data.MetaTree
+import RandomHelp
+import Dodge.Data.GenWorld
 import Dodge.Room.Modify.Girder
+import qualified Data.Set as S
+import Data.Maybe
+import Geometry
+import Data.Foldable
+
+storeRoomID :: Room -> State LayoutVars (Int, Room)
+storeRoomID x = do
+    i <- nextLayoutInt
+    return (i, x & rmPmnts .:~ sps0 (PutWorldUpdate (f i)))
+  where
+    f i rid _ gw = gw & genInts . at i ?~ (gw ^?! genRooms . ix rid . rmMID . _Just)
+
+-- unsafe! assumes that storeRoomID has been called
+getRoomFromID :: Int -> GenWorld -> Room
+getRoomFromID i gw = gw ^?! genRooms . ix (gw ^?! genInts . ix i)
+
+removeLights :: Room -> Room
+removeLights = rmPmnts %~ mapMaybe f
+  where
+    f x = case x ^. plType of
+        PutLabel "light" -> Nothing
+        _ -> Just x
+
+addLightsNGon :: Room -> State LayoutVars Room
+addLightsNGon rm = do
+    (i, rm') <- storeRoomID $ removeLights rm
+    return $
+        rm'
+            & rmInPmnt
+            .:~ (0, f i)
+  where
+    a = 2 * pi - (2 * pi / fromIntegral (rm ^?! rmType . rmngonSides))
+    y = rm ^?! rmType . rmngonSize
+    x = y * tan (0.5 * a)
+    f i gw = do
+        lshape <- takeOne [vShape, lShape, jShape, liShape]
+        let ps = fromMaybe (PS (V2 y 0) 0) $ rpToPS <$> find iscolorlight (grm ^. rmPos)
+            alight a' = mntLSCond (fmap (fmap $ colorSH black) lshape) (rotateps a' ps)
+        takeOne
+            [ spanLightY (V2 0 0) (V2 y x) (V2 (x) y) (V2 (x) (-y))
+            , spanLightY (V2 20 20) (V2 y 20) (V2 (-y) 20) (V2 20 (-y))
+            , spanLightI (V2 22 y) (V2 22 (-y))
+            , spanLightI (V2 x y) (V2 (-x) (-y))
+            , alight (0.5 * pi) <> alight (1.5 * pi)
+            ]
+      where
+        grm = getRoomFromID i gw
+    rotateps a' (PS v d) = PS (rotateV a' v) (a' + d)
+    rotateps _ _ = error "in addLightsNGon"
+    rpToPS rp = (PS (_rpPos rp) (_rpDir rp))
+    iscolorlight rp =
+        (ColoredLightRP `S.member` (rp ^. rpFlags))
+            && islinkroompos rp
+    islinkroompos rp = case rp ^. rpType of
+        UsedOutLink{} -> True
+        UsedInLink{} -> True
+        UnusedLink{} -> True
+        NotLink{} -> False
+
diff --git a/src/Dodge/Room/Ngon.hs b/src/Dodge/Room/Ngon.hs
index cd0afe652..7a2b622ba 100644
--- a/src/Dodge/Room/Ngon.hs
+++ b/src/Dodge/Room/Ngon.hs
@@ -24,6 +24,7 @@ roomNgon n x = do
             , _rmPmnts = [thelight]
             , _rmBound = [poly]
             , _rmFloor = Tiled [makeTileFromPoly poly 2]
+            , _rmType = RoomNgon n x
             --, _rmFloor = InheritFloor
             , _rmName = show n ++ "gon"
             , _rmPos = poss
diff --git a/src/Dodge/Room/Room.hs b/src/Dodge/Room/Room.hs
index ab8d160f7..6ae1834e0 100644
--- a/src/Dodge/Room/Room.hs
+++ b/src/Dodge/Room/Room.hs
@@ -154,7 +154,7 @@ roomCenterPillar = do
                             roomRect 240 240 2 2
             )
 
-weaponEmptyRoom :: State StdGen (Tree Room)
+weaponEmptyRoom :: RandomGen g => State g (Tree Room)
 weaponEmptyRoom = do
     w <- state $ randomR (220, 300)
     h <- state $ randomR (220, 300)
@@ -209,7 +209,7 @@ weaponBehindPillar = do
             , cleatOnward $ set rmPmnts [sPS (V2 20 60) (negate $ pi / 2) randC1] corridorN
             ]
 
-weaponBetweenPillars :: State StdGen (MetaTree Room String)
+weaponBetweenPillars :: State LayoutVars (MetaTree Room String)
 weaponBetweenPillars = do
     (w, wn) <- takeOne [(240, 2), (340, 3)]
     (h, hn) <- takeOne [(240, 2), (340, 3)]
@@ -271,7 +271,7 @@ deadEndRoom =
     lnks = [(V2 0 30, 0)]
 
 {- A random Either tree with a weapon and melee monster challenge.  -}
-weaponRoom :: State StdGen (MetaTree Room String)
+weaponRoom :: State LayoutVars (MetaTree Room String)
 weaponRoom =
     join $
         takeOne
@@ -458,7 +458,7 @@ distributerRoom atype aamount = do
                     )
                 )
     return $ r & rmPmnts .:~ store
-        & rmInPmnt <>~ [(0,dst),(1,thepipe)]
+        & rmInPmnt <>~ [(0,return . dst),(1,return . thepipe)]
         & rmLinks %~ setInLinksByType (OnEdge South)
         & rmLinks %~ setOutLinks (not . S.member (OnEdge South) . _rlType)
 
diff --git a/src/Dodge/Room/SensorDoor.hs b/src/Dodge/Room/SensorDoor.hs
index 16af31fb4..11c8be2e2 100644
--- a/src/Dodge/Room/SensorDoor.hs
+++ b/src/Dodge/Room/SensorDoor.hs
@@ -1,33 +1,37 @@
 {-# LANGUAGE TupleSections #-}
-module Dodge.Room.SensorDoor (sensAboveDoor,sensorRoomRunPast) where
 
-import Dodge.Data.MTRS
+module Dodge.Room.SensorDoor (sensAboveDoor, sensorRoomRunPast) where
+
+import Dodge.Room.Procedural
+import Control.Monad
 import qualified Data.Set as S
 import Dodge.Cleat
 import Dodge.Data.GenWorld
+import Dodge.Data.MTRS
 import Dodge.LevelGen.PlacementHelper
 import Dodge.Placement.Instance
 import Dodge.PlacementSpot
 import Dodge.Room.Corridor
 import Dodge.Room.Door
 import Dodge.Room.Link
+import Dodge.Room.Modify
 import Dodge.Room.Ngon
-import Dodge.Room.Procedural
 import Dodge.Terminal
 import Dodge.Tree
 import Dodge.Wire
 import Geometry
 import LensHelp
 import RandomHelp
-import Control.Monad
 
 -- TODO fix case where the sensor created by sensInsideDoor blocks another door
 -- for roomRectAutoLinks-- make the locked door a center door?
-sensorRoom :: RandomGen g => SensorType -> Int -> State g (Tree Room)
+sensorRoom :: SensorType -> Int -> State LayoutVars (Tree Room)
 sensorRoom senseType n = do
-    rm <- join $ takeOne [roomNgon 8 200, roomRectAutoLights 200 200]
+    rm <- join $ takeOne [addLightsNGon =<< roomNgon 8 200, roomRectAutoLights 200 200]
+    --rm <- join $ takeOne [addLightsNGon =<< roomNgon 8 200]
     cenroom <- shuffleLinks $ sensInsideDoor senseType n rm
-    return $ treePost
+    return $
+        treePost
             [ door
             , cenroom & rmLinkEff .~ f
             , triggerDoorRoom n
@@ -43,29 +47,40 @@ sensorRoom senseType n = do
         p' = p +.+ rotateV d (V2 0 (negate 100))
         isclose = dist (_rlPos rl) p' < 30
 
-sensorRoomRunPast :: RandomGen g => SensorType -> Int -> State g MTRS
+
+
+sensorRoomRunPast :: SensorType -> Int -> State LayoutVars MTRS
 sensorRoomRunPast dt n = do
     t <- sensorRoom dt n
-    rToOnward "sensorRoomRunPast" $ t
-            & applyToSubforest [0]
-                ( ++ [ treePost [ door & rmConnectsTo .~ (\s -> S.member InLink s && not (S.member BlockedLink s)) , cleatLabel n corridor ] ])
+    rToOnward "sensorRoomRunPast" $
+        t
+            & applyToSubforest
+                [0]
+                (++ [treePost [door & rmConnectsTo .~ (\s -> S.member InLink s && not (S.member BlockedLink s)), cleatLabel n corridor]])
 
 sensAboveDoor :: SensorType -> Float -> PlacementSpot -> Placement
 sensAboveDoor sensetype wth ps =
     extTrigLitPos
-        (atFstLnkOutShiftBy (\(p, a) -> ((p +.+ rotateV a (V2 18.5 (-2.5)), a), S.singleton UsedPosHigh)))
+        ( psposAddLabel
+            ColoredLightRP
+            (atFstLnkOutShiftBy (\(p, a) -> ((p +.+ rotateV a (V2 18.5 (-2.5)), a), S.singleton UsedPosHigh)))
+        )
         (\tp -> Just $ damageSensor sensetype wth (_plMID tp) ps)
 
 sensInsideDoor :: SensorType -> Int -> Room -> Room
-sensInsideDoor senseType i rm = rm
-    & rmName .++~ take 4 (show senseType)
-    & rmPmnts
+sensInsideDoor senseType i rm =
+    rm
+        & rmName
+        .++~ take 4 (show senseType)
+        & rmPmnts
         .++~ [ psPt atFstLnkOut . PutForeground $ floorWire (V2 20 0) (V2 20 (-100))
              , psPt atFstLnkOut . PutForeground $ floorWire (V2 0 (-100)) (V2 20 (-100))
              , psPt atFstLnkOut . PutForeground $ verticalWire (V2 20 0) 0 80
-             , putMessageTerminal 
+             , putMessageTerminal
                 (textTerminal & tmCommands .:~ TCDamageCommand)
-                & plSpot .~ rprBoolShift isUnusedLnk (shiftInBy 10 <&> (, S.singleton UsedPosHigh))
-            , sensAboveDoor senseType 10 (atFstLnkOutShiftInward 100) & plExternalID ?~ i
+                & plSpot
+                .~ rprBoolShift isUnusedLnk (shiftInBy 10 <&> (,S.singleton UsedPosHigh))
+             , sensAboveDoor senseType 10 (atFstLnkOutShiftInward 100) & plExternalID ?~ i
              ]
+
 --    & rmOutPmnt . at i ?~ sensAboveDoor senseType 10 (atFstLnkOutShiftInward 100)
diff --git a/src/Dodge/Room/Start.hs b/src/Dodge/Room/Start.hs
index d79367d4a..95650ac26 100644
--- a/src/Dodge/Room/Start.hs
+++ b/src/Dodge/Room/Start.hs
@@ -50,8 +50,9 @@ powerFakeout = do
                    ]
 
 -- the i is used either for a PickOnePlacement or a room id, this is not great
-startRoom :: Int -> State StdGen (MetaTree Room String)
-startRoom i =
+startRoom :: State LayoutVars (MetaTree Room String)
+startRoom = do
+    i <- nextLayoutInt
     join $
         takeOne
             [ attachOnward "startThenWeaponRoom" <$> preCritStart <*> weaponRoom
diff --git a/src/Dodge/Room/Tutorial.hs b/src/Dodge/Room/Tutorial.hs
index 7f4e6a848..0aaf292d2 100644
--- a/src/Dodge/Room/Tutorial.hs
+++ b/src/Dodge/Room/Tutorial.hs
@@ -2,6 +2,7 @@
 
 module Dodge.Room.Tutorial where
 
+import Dodge.Room.Modify
 import Control.Monad
 import qualified Data.IntMap.Strict as IM
 import qualified Data.IntSet as IS
@@ -119,7 +120,7 @@ tutDrop = do
     return $
         tToBTree "TutDrop" $
             treePost
-                [x & rmInPmnt .:~ (0, t j), y, cleatOnward rm]
+                [x & rmInPmnt .:~ (0, return . t j), y, cleatOnward rm]
   where
     t j gw =
         let x = gw ^? genInts . ix j
@@ -391,13 +392,6 @@ tutLight = do
                         )
             _ -> Nothing
 
-removeLights :: Room -> Room
-removeLights = rmPmnts %~ mapMaybe f
-  where
-    f x = case x ^. plType of
-        PutLabel "light" -> Nothing
-        _ -> Just x
-
 tutHub :: State LayoutVars (MetaTree Room String)
 tutHub = do
     (is, wbp) <- setTreeInts =<< critsRoom 1
@@ -413,7 +407,7 @@ tutHub = do
     x <-
         shuffleLinks
             . analyserByDoor (RequireEquipment (AMMOMAG DRUMMAG)) i
-            . (rmInPmnt .:~ (0, a))
+            . (rmInPmnt .:~ (0, return . a))
             . addDoorAtNthLinkToggleTerminal 1 ss j
             --            . addDoorAtNthLinkToggleInterrupt 2 ds j
             . addDoorAtNthLinkToggleInterrupt 2 ds j1
diff --git a/src/Dodge/TestString.hs b/src/Dodge/TestString.hs
index 27c4f2e16..ef59a2277 100644
--- a/src/Dodge/TestString.hs
+++ b/src/Dodge/TestString.hs
@@ -30,11 +30,12 @@ import qualified Data.Map.Strict as M
 import NewInt
 import Data.Foldable
 import Data.Monoid
+import RandomHelp
 
 testStringInit :: Universe -> [String]
-testStringInit u = 
-    (fmap show $ u ^.. uvWorld . cWorld . lWorld . machines . each . mcType . _McDamSensor . sensAmount)
-    <> (fmap show $ u ^.. uvWorld . cWorld . lWorld . machines . each . mcMaterial)
+testStringInit u = [evalState (takeOne ["a","b"]) (_randGen $ _uvWorld u)]
+--    (fmap show $ u ^.. uvWorld . cWorld . lWorld . machines . each . mcType . _McDamSensor . sensAmount)
+--    <> (fmap show $ u ^.. uvWorld . cWorld . lWorld . machines . each . mcMaterial)
 --testStringInit u = map show (u ^.. uvWorld . cWorld . lWorld . machines . traverse . mcDir)
 --testStringInit u =  map show
 --    (u ^.. uvWorld . cWorld . lWorld . machines . traverse .mcType . _McDistributer)
diff --git a/src/RandomHelp.hs b/src/RandomHelp.hs
index 4c9548625..3caac915b 100644
--- a/src/RandomHelp.hs
+++ b/src/RandomHelp.hs
@@ -2,13 +2,13 @@
 {- Helpers for random generation.  -}
 module RandomHelp (
     module System.Random,
---    module Control.Monad.State,
+    --    module Control.Monad.State,
     module RandomHelp,
     module Control.Monad.Trans.State.Lazy,
 ) where
 
 import Control.Monad
---import Control.Monad.State
+-- import Control.Monad.State
 import Control.Monad.Trans.State.Lazy
 import Data.List
 import Geometry
@@ -21,8 +21,25 @@ randomRanges = join . takeOne . f
     f (x : y : ys) = state (randomR (x, y)) : f ys
     f _ = []
 
-takeOne :: RandomGen g => [a] -> State g a
-takeOne xs = state (randomR (0, length xs - 1)) >>= (\i -> return (xs !! i))
+takeOne :: (RandomGen g) => [a] -> State g a
+takeOne xs = state (randomR (0, length xs - 1)) >>= \i -> return (xs !! i)
+
+takeOneRem :: (RandomGen g) => [a] -> State g (Maybe (a, [a]))
+takeOneRem [] = return Nothing
+takeOneRem xs =
+    state (randomR (0, length xs - 1)) >>= \i -> do
+        let (ys, (z : zs)) = splitAt i xs
+        return $ Just (z, ys <> zs)
+
+takeOneFiltered :: (RandomGen g) => (a -> Bool) -> [a] -> State g (Maybe a)
+takeOneFiltered t xs = do
+    m <- takeOneRem xs
+    f m
+  where
+    f Nothing = return Nothing
+    f (Just (y, ys))
+        | t y = return $ Just y
+        | otherwise = takeOneFiltered t ys
 
 takeOneWeighted :: (RandomGen g, Random b, Ord b, Num b) => [b] -> [a] -> State g a
 takeOneWeighted ws xs = state (randomR (0, sum ws)) >>= (\w -> return (xs !! i w ws))
@@ -32,25 +49,25 @@ takeOneWeighted ws xs = state (randomR (0, sum ws)) >>= (\w -> return (xs !! i w
         | otherwise = 1 + i (y - z) zs
     i _ _ = 0
 
---{-# OPTIONS -Wno-incomplete-uni-patterns #-}
-takeOneMore :: RandomGen g => ([a], [a]) -> State g ([a], [a])
+-- {-# OPTIONS -Wno-incomplete-uni-patterns #-}
+takeOneMore :: (RandomGen g) => ([a], [a]) -> State g ([a], [a])
 takeOneMore (_, []) = error "trying to takeOneMore from empty list"
 takeOneMore (xs, ys) = do
     i <- state $ randomR (0, length ys - 1)
     let (zs, w : ws) = splitAt i ys
     return (w : xs, zs ++ ws)
 
-takeNMore :: RandomGen g => Int -> ([a], [a]) -> State g ([a], [a])
+takeNMore :: (RandomGen g) => Int -> ([a], [a]) -> State g ([a], [a])
 takeNMore n p = foldl' (flip $ const (>>= takeOneMore)) (return p) [1 .. n]
 
-takeN :: RandomGen g => Int -> [a] -> State g [a]
+takeN :: (RandomGen g) => Int -> [a] -> State g [a]
 takeN 0 _ = return []
 takeN i xs = fst <$> takeNMore i ([], xs)
 
 -- | Randomly shuffle a list.
-shuffle :: RandomGen g => [a] -> State g [a]
+shuffle :: (RandomGen g) => [a] -> State g [a]
 shuffle xs = do
-    rands <- forM [0 .. length xs -1] $ \i -> state $ randomR (0, i)
+    rands <- forM [0 .. length xs - 1] $ \i -> state $ randomR (0, i)
     let f ys rand =
             let (as, b : bs) = splitAt rand ys
              in (as ++ bs, b)
@@ -58,94 +75,95 @@ shuffle xs = do
     return $ forceElements zs `seq` zs
 
 -- | Randomly shuffle the tail of a list, not safe.
-shuffleTail :: RandomGen g => [a] -> State g [a]
+shuffleTail :: (RandomGen g) => [a] -> State g [a]
 shuffleTail (x : xs) = (x :) <$> shuffle xs
 shuffleTail _ = undefined
 
 -- select elements from a list randomly
 -- each element has the same independent chance of being selected
-randomSelectionFromList :: RandomGen g => Float -> [a] -> State g [a]
+randomSelectionFromList :: (RandomGen g) => Float -> [a] -> State g [a]
 randomSelectionFromList = filterM . const . randProb
 
-randProb :: RandomGen g => Float -> State g Bool
+randProb :: (RandomGen g) => Float -> State g Bool
 randProb p = do
     p1 <- state $ randomR (0, 1)
     return (p1 < p)
 
-randInCirc :: RandomGen g => Float -> State g Point2
+randInCirc :: (RandomGen g) => Float -> State g Point2
 randInCirc = flip randInArc (2 * pi)
 
-randOnCirc :: RandomGen g => Float -> State g Point2
+randOnCirc :: (RandomGen g) => Float -> State g Point2
 randOnCirc r = do
-    a <- state $ randomR (0, 2*pi)
+    a <- state $ randomR (0, 2 * pi)
     return $ r *.* unitVectorAtAngle a
 
-randInArc :: RandomGen g => Float -> Float -> State g Point2
+randInArc :: (RandomGen g) => Float -> Float -> State g Point2
 randInArc = randInArcStrip 0
 
-randInArcStrip :: RandomGen g => Float -> Float -> Float -> State g Point2
+randInArcStrip :: (RandomGen g) => Float -> Float -> Float -> State g Point2
 randInArcStrip minrad maxRad maxangle = do
     rad <- state $ randomR (minrad, maxRad)
     ang <- state $ randomR (0, maxangle)
     return $ rad *.* unitVectorAtAngle ang
 
-randOnUnitSphere :: RandomGen g => State g Point3
+randOnUnitSphere :: (RandomGen g) => State g Point3
 randOnUnitSphere = do
     z <- state $ randomR (negate 1, 1)
     longitude <- state $ randomR (0, 2 * pi)
     let (V2 x y) = sqrt (1 - z ^ (2 :: Int)) *.* unitVectorAtAngle longitude
     return (V3 x y z)
 
-randOnHemisphere :: RandomGen g => State g Point3
+randOnHemisphere :: (RandomGen g) => State g Point3
 randOnHemisphere = do
     z <- state $ randomR (0, 1)
     longitude <- state $ randomR (0, 2 * pi)
     let (V2 x y) = sqrt (1 - z ^ (2 :: Int)) *.* unitVectorAtAngle longitude
     return (V3 x y z)
 
-randInHemisphere :: RandomGen g => State g Point3
+randInHemisphere :: (RandomGen g) => State g Point3
 randInHemisphere = do
     p <- randOnHemisphere
     r <- state $ randomR (0, 1)
     return $ r *.*.* p
 
-randInRect :: RandomGen g => Float -> Float -> State g Point2
+randInRect :: (RandomGen g) => Float -> Float -> State g Point2
 randInRect w h = do
     x <- state $ randomR (0, w)
     y <- state $ randomR (0, h)
     return (V2 x y)
 
-maybeTakeOne :: RandomGen g => [a] -> State g (Maybe a)
+maybeTakeOne :: (RandomGen g) => [a] -> State g (Maybe a)
 maybeTakeOne [] = return Nothing
 maybeTakeOne xs = state (randomR (0, length xs - 1)) >>= (\i -> return (Just (xs !! i)))
 
-randsSpread :: RandomGen g => (Float, Float) -> Int -> State g [Float]
+randsSpread :: (RandomGen g) => (Float, Float) -> Int -> State g [Float]
 randsSpread (a, b) i
     | i <= 0 = error "tried to take <= 0 randsSpread"
     | otherwise = zipWith (+) [a + x, a + 2 * x ..] <$> replicateM i (state $ randomR (0, x))
   where
     x = (b - a) / fromIntegral i
 
-randsOnCirc :: RandomGen g => Int -> State g [Float]
+randsOnCirc :: (RandomGen g) => Int -> State g [Float]
 randsOnCirc = randsSpread (0, 2 * pi)
 
-randPeakedParam :: RandomGen g => Int -> Float -> Float -> Float -> State g Float
+randPeakedParam :: (RandomGen g) => Int -> Float -> Float -> Float -> State g Float
 randPeakedParam i a b c = do
     x <- state $ randomR (-1, 1)
     let y = x ^ i
-    return $ if y < 0
-        then a + y * (a-b)
-        else b + y * (c-b)
+    return $
+        if y < 0
+            then a + y * (a - b)
+            else b + y * (c - b)
 
-randPeaked :: RandomGen g => Float -> Float -> Float -> State g Float
+randPeaked :: (RandomGen g) => Float -> Float -> Float -> State g Float
 randPeaked = randPeakedParam 3
 
-randFromPair :: RandomGen g => Float -> (a,a) -> State g a
-randFromPair x (l,r) = do
-    y <- state $ randomR (0,1)
+randFromPair :: (RandomGen g) => Float -> (a, a) -> State g a
+randFromPair x (l, r) = do
+    y <- state $ randomR (0, 1)
     if x < y then return l else return r
 
-shufflePair :: RandomGen g => (a,a) -> State g (a,a)
-shufflePair (x,y) = do
-    v <- state $ randomR (0::Float,1)
-    if v > 0.5 then return (x,y) else return (y,x)
+shufflePair :: (RandomGen g) => (a, a) -> State g (a, a)
+shufflePair (x, y) = do
+    v <- state $ randomR (0 :: Float, 1)
+    if v > 0.5 then return (x, y) else return (y, x)
diff --git a/tags b/tags
index 258b39bbf..830284d6c 100644
--- a/tags
+++ b/tags
@@ -131,7 +131,7 @@ BlockDebris	src/Dodge/Data/Prop.hs	23;"	C
 BlockDegradeSound	src/Dodge/Data/SoundOrigin.hs	31;"	C
 BlockPart	src/Dodge/Data/Wall/Structure.hs	14;"	C
 BlockStatus	src/Dodge/Data/Universe.hs	98;"	t
-BlockedLink	src/Dodge/Data/Room.hs	50;"	C
+BlockedLink	src/Dodge/Data/Room.hs	54;"	C
 BloomLayer	src/Picture/Data.hs	21;"	C
 Blunt	src/Dodge/Data/Damage.hs	17;"	C
 Boosting	src/Dodge/Data/Creature/Stance.hs	26;"	C
@@ -220,6 +220,7 @@ Collision_test	src/Dodge/Data/Config.hs	98;"	C
 Color	src/Color/Data.hs	30;"	t
 Color8	src/Color/Data.hs	32;"	t
 ColorFaction	src/Dodge/Data/Creature/State.hs	19;"	C
+ColoredLightRP	src/Dodge/Data/Room.hs	88;"	C
 Comatose	src/Dodge/Data/Creature/Perception.hs	51;"	C
 CombAmount	src/Dodge/Data/CombAmount.hs	10;"	t
 CombItem	src/Dodge/Data/Combine.hs	8;"	t
@@ -453,7 +454,7 @@ FootstepSound	src/Dodge/Data/SoundOrigin.hs	30;"	C
 ForceField	src/Dodge/Data/Material.hs	19;"	C
 ForceFieldType	src/Dodge/Data/Item/Use/Consumption/Ammo.hs	11;"	t
 ForegroundShape	src/Dodge/Data/ForegroundShape.hs	12;"	t
-FromEdge	src/Dodge/Data/Room.hs	49;"	C
+FromEdge	src/Dodge/Data/Room.hs	53;"	C
 FullRes	src/Dodge/Data/Config.hs	113;"	C
 FullShadowFidelity	src/Shape/Data.hs	19;"	C
 FullSize	src/Dodge/Data/Item/Params.hs	26;"	C
@@ -563,7 +564,7 @@ ImpulsesList	src/Dodge/Data/ActionPlan.hs	72;"	C
 InDivineZone	src/Dodge/Data/Scenario.hs	22;"	C
 InDream	src/Dodge/Data/Scenario.hs	19;"	C
 InInv	src/Dodge/Data/Item/Location.hs	29;"	C
-InLink	src/Dodge/Data/Room.hs	45;"	C
+InLink	src/Dodge/Data/Room.hs	49;"	C
 InParallelUniverse	src/Dodge/Data/Scenario.hs	21;"	C
 InRealWorld	src/Dodge/Data/Scenario.hs	18;"	C
 InSimulation	src/Dodge/Data/Scenario.hs	20;"	C
@@ -628,7 +629,7 @@ LIGHTSENSOR	src/Dodge/Data/Item/Combine.hs	79;"	C
 LS	src/Dodge/Data/LightSource.hs	21;"	C
 LSParam	src/Dodge/Data/LightSource.hs	14;"	t
 LWorld	src/Dodge/Data/LWorld.hs	94;"	t
-LabLink	src/Dodge/Data/Room.hs	46;"	C
+LabLink	src/Dodge/Data/Room.hs	50;"	C
 LabSS	src/Dodge/Data/Scenario.hs	97;"	C
 LabelCluster	src/Dodge/Data/RoomCluster.hs	13;"	C
 Laboratory	src/Dodge/Data/Scenario.hs	61;"	C
@@ -857,7 +858,7 @@ NorthEast	src/Dodge/Data/CardinalPoint.hs	21;"	C
 NorthEast8	src/Dodge/Data/CardinalPoint.hs	29;"	C
 NorthWest	src/Dodge/Data/CardinalPoint.hs	24;"	C
 NorthWest8	src/Dodge/Data/CardinalPoint.hs	35;"	C
-NotLink	src/Dodge/Data/Room.hs	69;"	C
+NotLink	src/Dodge/Data/Room.hs	73;"	C
 NotPushed	src/Dodge/Data/Door.hs	26;"	C
 Nothing'	src/MaybeHelp.hs	11;"	C
 NothingID	src/Dodge/Data/CrWlID.hs	10;"	C
@@ -917,7 +918,7 @@ Object	src/Dodge/Data/Object.hs	10;"	t
 ObjectType	src/Dodge/Data/ObjectType.hs	9;"	t
 OnBack	src/Dodge/Data/Equipment/Misc.hs	22;"	C
 OnChest	src/Dodge/Data/Equipment/Misc.hs	21;"	C
-OnEdge	src/Dodge/Data/Room.hs	48;"	C
+OnEdge	src/Dodge/Data/Room.hs	52;"	C
 OnFloor	src/Dodge/Data/Item/Location.hs	38;"	C
 OnHead	src/Dodge/Data/Equipment/Misc.hs	20;"	C
 OnLeftLeg	src/Dodge/Data/Equipment/Misc.hs	25;"	C
@@ -933,7 +934,7 @@ Opaque	src/Dodge/Data/Wall.hs	34;"	C
 OpticScope	src/Dodge/Data/Item/Scope.hs	12;"	C
 OptionScreen	src/Dodge/Data/Universe.hs	82;"	C
 OptionScreenFlag	src/Dodge/Data/Universe.hs	70;"	t
-OutLink	src/Dodge/Data/Room.hs	44;"	C
+OutLink	src/Dodge/Data/Room.hs	48;"	C
 OutsideTerminal	src/Dodge/Data/Input.hs	28;"	C
 OutwardShockwave	src/Dodge/Data/Shockwave.hs	12;"	C
 OverCombCombine	src/Dodge/Data/Input.hs	24;"	C
@@ -963,13 +964,13 @@ PRISM	src/Dodge/Data/Item/Combine.hs	65;"	C
 PS	src/Dodge/Data/GenWorld.hs	99;"	C
 PSNoShiftCont	src/Dodge/Data/GenWorld.hs	100;"	C
 PSPos	src/Dodge/Data/GenWorld.hs	101;"	C
-PSRoomRand	src/Dodge/Data/GenWorld.hs	106;"	C
+PSRoomRand	src/Dodge/Data/GenWorld.hs	108;"	C
 PSType	src/Dodge/Data/GenWorld.hs	32;"	t
 PUMP	src/Dodge/Data/Item/Combine.hs	62;"	C
 PaletteColor	src/Color/Data.hs	11;"	t
 PathBetweenDebugV2s	src/Dodge/Data/Universe.hs	54;"	C
 PathBetweenLeftRightClick	src/Dodge/Data/Universe.hs	53;"	C
-PathFromEdge	src/Dodge/Data/Room.hs	77;"	t
+PathFromEdge	src/Dodge/Data/Room.hs	81;"	t
 PathShowType	src/Dodge/Data/Universe.hs	52;"	t
 PathTo	src/Dodge/Data/ActionPlan.hs	70;"	C
 Pathing	src/Dodge/Data/Config.hs	90;"	C
@@ -986,7 +987,7 @@ Picture	src/Picture/Data.hs	41;"	t
 Piercing	src/Dodge/Data/Damage.hs	16;"	C
 Piezoelectric	src/Dodge/Data/Material.hs	23;"	C
 PistolAI	src/Dodge/Data/Creature/Misc.hs	41;"	C
-Placement	src/Dodge/Data/GenWorld.hs	112;"	t
+Placement	src/Dodge/Data/GenWorld.hs	114;"	t
 PlacementSpot	src/Dodge/Data/GenWorld.hs	98;"	t
 PlainBarrel	src/Dodge/Data/Creature/Misc.hs	86;"	C
 PlainDeath	src/Dodge/Data/Creature.hs	68;"	C
@@ -1007,7 +1008,7 @@ Poison	src/Dodge/Data/Damage.hs	26;"	C
 PoisonDamage	src/Dodge/Data/Damage/Type.hs	6;"	C
 PoisonDeath	src/Dodge/Data/Creature.hs	68;"	C
 PoisonGas	src/Dodge/Data/Cloud.hs	42;"	C
-PolyEdge	src/Dodge/Data/Room.hs	47;"	C
+PolyEdge	src/Dodge/Data/Room.hs	51;"	C
 PolyShad	src/Picture/Data.hs	31;"	C
 Polyhedra	src/Polyhedra/Data.hs	13;"	t
 Polyhedron	src/Polyhedra/Data.hs	13;"	C
@@ -1074,7 +1075,7 @@ RIFLE	src/Dodge/Data/Item/Combine.hs	153;"	C
 RLAUNCHER	src/Dodge/Data/Item/Combine.hs	169;"	C
 RLAUNCHERX	src/Dodge/Data/Item/Combine.hs	170;"	C
 ROSE	src/Color/Data.hs	18;"	C
-RPLinkStatus	src/Dodge/Data/Room.hs	58;"	t
+RPLinkStatus	src/Dodge/Data/Room.hs	62;"	t
 RProps	src/Dodge/Layout/Generate.hs	14;"	C
 RadarBlip	src/Dodge/Data/RadarBlip.hs	12;"	t
 RadarSweep	src/Dodge/Data/RadarSweep.hs	17;"	t
@@ -1118,18 +1119,20 @@ Rocket	src/Dodge/Data/Projectile.hs	32;"	C
 RocketHoming	src/Dodge/Data/Projectile.hs	39;"	t
 RocketSmoke	src/Dodge/Data/Projectile.hs	52;"	t
 RocketSmoke	src/Dodge/Data/Cloud.hs	22;"	C
-Room	src/Dodge/Data/GenWorld.hs	127;"	t
+Room	src/Dodge/Data/GenWorld.hs	129;"	t
 RoomClipping	src/Dodge/Data/Config.hs	123;"	t
 RoomInt	src/Dodge/Tree/Shift.hs	27;"	t
 RoomLink	src/Dodge/Data/Room.hs	24;"	t
-RoomLinkType	src/Dodge/Data/Room.hs	43;"	t
+RoomLinkType	src/Dodge/Data/Room.hs	47;"	t
+RoomNgon	src/Dodge/Data/Room.hs	41;"	C
 RoomPos	src/Dodge/Data/Room.hs	15;"	t
-RoomPosFlag	src/Dodge/Data/Room.hs	80;"	t
-RoomPosOffGrid	src/Dodge/Data/Room.hs	82;"	C
-RoomPosOnGrid	src/Dodge/Data/Room.hs	81;"	C
+RoomPosFlag	src/Dodge/Data/Room.hs	84;"	t
+RoomPosOffGrid	src/Dodge/Data/Room.hs	86;"	C
+RoomPosOnFloor	src/Dodge/Data/Room.hs	87;"	C
+RoomPosOnGrid	src/Dodge/Data/Room.hs	85;"	C
 RoomProperties	src/Dodge/Layout/Generate.hs	14;"	t
 RoomType	src/Dodge/Data/Room.hs	31;"	t
-RoomWire	src/Dodge/Data/Room.hs	53;"	t
+RoomWire	src/Dodge/Data/Room.hs	57;"	t
 RoundedFaces	src/Shape/Data.hs	13;"	C
 RunningSideEffect	src/Dodge/Data/Universe.hs	67;"	C
 SCRAPMETAL	src/Dodge/Data/Item/Combine.hs	61;"	C
@@ -1396,7 +1399,7 @@ Unimportant	src/Shape/Data.hs	32;"	C
 Universe	src/Dodge/Data/Universe.hs	28;"	t
 UnloadedWeaponSF	src/Dodge/Data/ComposedItem.hs	13;"	C
 UnlockInv	src/Dodge/Data/WorldEffect.hs	31;"	C
-UnusedLink	src/Dodge/Data/Room.hs	68;"	C
+UnusedLink	src/Dodge/Data/Room.hs	72;"	C
 UseAttach	src/Dodge/Data/Item/Use.hs	30;"	C
 UseBulletMod	src/Dodge/Data/Item/Use.hs	35;"	C
 UseCondition	src/Dodge/Data/UseCondition.hs	4;"	t
@@ -1419,13 +1422,13 @@ UseValue	src/Dodge/Data/Item/Use.hs	33;"	C
 UseableAnytime	src/Dodge/Data/UseCondition.hs	7;"	C
 UseableWhenAimed	src/Dodge/Data/UseCondition.hs	5;"	C
 UseableWhenHeld	src/Dodge/Data/UseCondition.hs	6;"	C
-UsedInLink	src/Dodge/Data/Room.hs	64;"	C
-UsedOutLink	src/Dodge/Data/Room.hs	59;"	C
-UsedPos	src/Dodge/Data/Room.hs	85;"	t
-UsedPosFloor	src/Dodge/Data/Room.hs	89;"	C
-UsedPosHigh	src/Dodge/Data/Room.hs	88;"	C
-UsedPosLow	src/Dodge/Data/Room.hs	86;"	C
-UsedPosMid	src/Dodge/Data/Room.hs	87;"	C
+UsedInLink	src/Dodge/Data/Room.hs	68;"	C
+UsedOutLink	src/Dodge/Data/Room.hs	63;"	C
+UsedPos	src/Dodge/Data/Room.hs	91;"	t
+UsedPosFloor	src/Dodge/Data/Room.hs	95;"	C
+UsedPosHigh	src/Dodge/Data/Room.hs	94;"	C
+UsedPosLow	src/Dodge/Data/Room.hs	92;"	C
+UsedPosMid	src/Dodge/Data/Room.hs	93;"	C
 VAO	src/Shader/Data.hs	64;"	t
 VBO	src/Shader/Data.hs	79;"	t
 VF	src/Polyhedra/Data.hs	21;"	t
@@ -1462,7 +1465,7 @@ WallP	src/Dodge/LevelGen/StaticWalls.hs	23;"	t
 WallP	src/Dodge/LevelGen/StaticWalls/Deprecated.hs	11;"	t
 WallSound	src/Dodge/Data/SoundOrigin.hs	25;"	C
 WallStructure	src/Dodge/Data/Wall/Structure.hs	10;"	t
-WallWire	src/Dodge/Data/Room.hs	55;"	C
+WallWire	src/Dodge/Data/Room.hs	59;"	C
 Walls_info	src/Dodge/Data/Config.hs	89;"	C
 War	src/Dodge/Data/Scenario.hs	28;"	C
 WarmTime	src/Dodge/Data/Item/Params.hs	19;"	C
@@ -2056,9 +2059,9 @@ _nzAngle	src/Dodge/Data/Item/Params.hs	16;"	f
 _nzMaxWalkAngle	src/Dodge/Data/Muzzle.hs	50;"	f
 _nzPressure	src/Dodge/Data/Muzzle.hs	49;"	f
 _nzWalkSpeed	src/Dodge/Data/Muzzle.hs	51;"	f
-_offGridFromEdges	src/Dodge/Data/Room.hs	82;"	f
+_offGridFromEdges	src/Dodge/Data/Room.hs	86;"	f
 _oldMagnets	src/Dodge/Data/LWorld.hs	127;"	f
-_onGridFromEdges	src/Dodge/Data/Room.hs	81;"	f
+_onGridFromEdges	src/Dodge/Data/Room.hs	85;"	f
 _opDraw	src/Dodge/Data/Wall.hs	33;"	f
 _opSel	src/Dodge/Data/RightButtonOptions.hs	15;"	f
 _opTexture	src/Dodge/Data/Wall.hs	34;"	f
@@ -2090,11 +2093,11 @@ _pjSpin	src/Dodge/Data/Projectile.hs	19;"	f
 _pjTimer	src/Dodge/Data/Projectile.hs	22;"	f
 _pjType	src/Dodge/Data/Projectile.hs	24;"	f
 _pjVel	src/Dodge/Data/Projectile.hs	17;"	f
-_plExternalID	src/Dodge/Data/GenWorld.hs	116;"	f
-_plIDCont	src/Dodge/Data/GenWorld.hs	117;"	f
-_plMID	src/Dodge/Data/GenWorld.hs	115;"	f
-_plSpot	src/Dodge/Data/GenWorld.hs	113;"	f
-_plType	src/Dodge/Data/GenWorld.hs	114;"	f
+_plExternalID	src/Dodge/Data/GenWorld.hs	118;"	f
+_plIDCont	src/Dodge/Data/GenWorld.hs	119;"	f
+_plMID	src/Dodge/Data/GenWorld.hs	117;"	f
+_plSpot	src/Dodge/Data/GenWorld.hs	115;"	f
+_plType	src/Dodge/Data/GenWorld.hs	116;"	f
 _plasmaBalls	src/Dodge/Data/LWorld.hs	106;"	f
 _playStatus	src/Sound/Data.hs	15;"	f
 _playingSounds	src/Dodge/Data/World.hs	41;"	f
@@ -2114,11 +2117,11 @@ _proxReqEquipment	src/Dodge/Data/Machine/Sensor.hs	35;"	f
 _proxReqMinHealth	src/Dodge/Data/Machine/Sensor.hs	34;"	f
 _proxSensorType	src/Dodge/Data/Machine/Sensor.hs	25;"	f
 _proxToggle	src/Dodge/Data/Machine/Sensor.hs	26;"	f
-_psFallback	src/Dodge/Data/GenWorld.hs	104;"	f
+_psFallback	src/Dodge/Data/GenWorld.hs	106;"	f
 _psPos	src/Dodge/Data/GenWorld.hs	99;"	f
-_psRandShift	src/Dodge/Data/GenWorld.hs	108;"	f
-_psRoomEff	src/Dodge/Data/GenWorld.hs	103;"	f
-_psRoomRandPointNum	src/Dodge/Data/GenWorld.hs	107;"	f
+_psRandShift	src/Dodge/Data/GenWorld.hs	110;"	f
+_psRoomEff	src/Dodge/Data/GenWorld.hs	105;"	f
+_psRoomRandPointNum	src/Dodge/Data/GenWorld.hs	109;"	f
 _psRot	src/Dodge/Data/GenWorld.hs	99;"	f
 _psSelect	src/Dodge/Data/GenWorld.hs	102;"	f
 _pullWallShader	src/Data/Preload/Render.hs	22;"	f
@@ -2185,41 +2188,43 @@ _rkSmoke	src/Dodge/Data/Projectile.hs	34;"	f
 _rlDir	src/Dodge/Data/Room.hs	27;"	f
 _rlPos	src/Dodge/Data/Room.hs	26;"	f
 _rlType	src/Dodge/Data/Room.hs	25;"	f
-_rmBound	src/Dodge/Data/GenWorld.hs	143;"	f
-_rmChildren	src/Dodge/Data/GenWorld.hs	154;"	f
-_rmClusterStatus	src/Dodge/Data/GenWorld.hs	156;"	f
-_rmConnectsTo	src/Dodge/Data/GenWorld.hs	151;"	f
-_rmEndWires	src/Dodge/Data/GenWorld.hs	150;"	f
-_rmFloor	src/Dodge/Data/GenWorld.hs	144;"	f
+_rmBound	src/Dodge/Data/GenWorld.hs	145;"	f
+_rmChildren	src/Dodge/Data/GenWorld.hs	156;"	f
+_rmClusterStatus	src/Dodge/Data/GenWorld.hs	158;"	f
+_rmConnectsTo	src/Dodge/Data/GenWorld.hs	153;"	f
+_rmEndWires	src/Dodge/Data/GenWorld.hs	152;"	f
+_rmFloor	src/Dodge/Data/GenWorld.hs	146;"	f
 _rmHeight	src/Dodge/Data/Room.hs	39;"	f
-_rmInPmnt	src/Dodge/Data/GenWorld.hs	141;"	f
-_rmLinkEff	src/Dodge/Data/GenWorld.hs	131;"	f
-_rmLinks	src/Dodge/Data/GenWorld.hs	129;"	f
-_rmMID	src/Dodge/Data/GenWorld.hs	152;"	f
-_rmMParent	src/Dodge/Data/GenWorld.hs	153;"	f
-_rmName	src/Dodge/Data/GenWorld.hs	145;"	f
-_rmPath	src/Dodge/Data/GenWorld.hs	139;"	f
-_rmPmnts	src/Dodge/Data/GenWorld.hs	140;"	f
-_rmPolys	src/Dodge/Data/GenWorld.hs	128;"	f
-_rmPos	src/Dodge/Data/GenWorld.hs	138;"	f
-_rmRandPSs	src/Dodge/Data/GenWorld.hs	148;"	f
-_rmShift	src/Dodge/Data/GenWorld.hs	146;"	f
-_rmStartWires	src/Dodge/Data/GenWorld.hs	149;"	f
-_rmType	src/Dodge/Data/GenWorld.hs	155;"	f
-_rmViewpoints	src/Dodge/Data/GenWorld.hs	147;"	f
+_rmInPmnt	src/Dodge/Data/GenWorld.hs	143;"	f
+_rmLinkEff	src/Dodge/Data/GenWorld.hs	133;"	f
+_rmLinks	src/Dodge/Data/GenWorld.hs	131;"	f
+_rmMID	src/Dodge/Data/GenWorld.hs	154;"	f
+_rmMParent	src/Dodge/Data/GenWorld.hs	155;"	f
+_rmName	src/Dodge/Data/GenWorld.hs	147;"	f
+_rmPath	src/Dodge/Data/GenWorld.hs	141;"	f
+_rmPmnts	src/Dodge/Data/GenWorld.hs	142;"	f
+_rmPolys	src/Dodge/Data/GenWorld.hs	130;"	f
+_rmPos	src/Dodge/Data/GenWorld.hs	140;"	f
+_rmRandPSs	src/Dodge/Data/GenWorld.hs	150;"	f
+_rmShift	src/Dodge/Data/GenWorld.hs	148;"	f
+_rmStartWires	src/Dodge/Data/GenWorld.hs	151;"	f
+_rmType	src/Dodge/Data/GenWorld.hs	157;"	f
+_rmViewpoints	src/Dodge/Data/GenWorld.hs	149;"	f
 _rmWidth	src/Dodge/Data/Room.hs	38;"	f
+_rmngonSides	src/Dodge/Data/Room.hs	42;"	f
+_rmngonSize	src/Dodge/Data/Room.hs	43;"	f
 _rpDir	src/Dodge/Data/Room.hs	17;"	f
 _rpFlags	src/Dodge/Data/Room.hs	18;"	f
-_rpOnPath	src/Dodge/Data/Room.hs	69;"	f
+_rpOnPath	src/Dodge/Data/Room.hs	73;"	f
 _rpPlacementUse	src/Dodge/Data/Room.hs	20;"	f
 _rpPos	src/Dodge/Data/Room.hs	16;"	f
 _rpType	src/Dodge/Data/Room.hs	19;"	f
-_rplsChildNum	src/Dodge/Data/Room.hs	61;"	f
-_rplsInRoomID	src/Dodge/Data/Room.hs	66;"	f
-_rplsOutRoomID	src/Dodge/Data/Room.hs	62;"	f
-_rplsType	src/Dodge/Data/Room.hs	60;"	f
-_rplsType	src/Dodge/Data/Room.hs	65;"	f
-_rplsType	src/Dodge/Data/Room.hs	68;"	f
+_rplsChildNum	src/Dodge/Data/Room.hs	65;"	f
+_rplsInRoomID	src/Dodge/Data/Room.hs	70;"	f
+_rplsOutRoomID	src/Dodge/Data/Room.hs	66;"	f
+_rplsType	src/Dodge/Data/Room.hs	64;"	f
+_rplsType	src/Dodge/Data/Room.hs	69;"	f
+_rplsType	src/Dodge/Data/Room.hs	72;"	f
 _rsAR	src/Dodge/Data/RadarSweep.hs	23;"	f
 _rsMapper	src/Dodge/Data/RadarSweep.hs	22;"	f
 _rsObject	src/Dodge/Data/RadarSweep.hs	20;"	f
@@ -2533,6 +2538,7 @@ addGirderNS'	src/Dodge/Room/Modify/Girder.hs	55;"	f
 addHighGirder	src/Dodge/Room/Modify/Girder.hs	132;"	f
 addHighGirder'	src/Dodge/Room/Modify/Girder.hs	142;"	f
 addIndefiniteArticle	src/StringHelp.hs	17;"	f
+addLightsNGon	src/Dodge/Room/Modify.hs	41;"	f
 addNodesCrossing	src/Dodge/Room/Path.hs	28;"	f
 addNodesCrossingCirc	src/Dodge/Room/Path.hs	41;"	f
 addPane	src/Dodge/Placement/PlaceSpot.hs	169;"	f
@@ -2569,8 +2575,8 @@ ammoMagSPic	src/Dodge/Item/Draw/SPic.hs	128;"	f
 amr	src/Dodge/Item/Held/Rod.hs	34;"	f
 anRoom	src/Dodge/Floor.hs	116;"	f
 analyser	src/Dodge/Placement/Instance/Analyser.hs	8;"	f
-analyserByDoor	src/Dodge/Room/LasTurret.hs	124;"	f
-analyserByNthLink	src/Dodge/Room/LasTurret.hs	108;"	f
+analyserByDoor	src/Dodge/Room/LasTurret.hs	127;"	f
+analyserByNthLink	src/Dodge/Room/LasTurret.hs	111;"	f
 andOrRegex	src/Dodge/DisplayInventory.hs	78;"	f
 angleBetween	src/Geometry.hs	158;"	f
 angleVV	src/Geometry/Vector.hs	58;"	f
@@ -2769,7 +2775,7 @@ cardinalBetweenAdj	src/Dodge/Base/CardinalPoint.hs	28;"	f
 cardinalVectors	src/Dodge/FloorItem.hs	24;"	f
 cdtPropagateFold	src/Dodge/DoubleTree.hs	189;"	f
 ceilingTo	src/Geometry/Zone.hs	15;"	f
-cenLasTur	src/Dodge/Room/LasTurret.hs	50;"	f
+cenLasTur	src/Dodge/Room/LasTurret.hs	51;"	f
 centerText	src/Picture/Base.hs	176;"	f
 centerVaultExplosiveExit	src/Dodge/Room/NoNeedWeapon.hs	20;"	f
 centerVaultRoom	src/Dodge/Room/Procedural.hs	269;"	f
@@ -2919,7 +2925,7 @@ corDoor	src/Dodge/Room/Room.hs	404;"	f
 cornerList	src/Preload/Render.hs	236;"	f
 corpseOrGib	src/Dodge/Creature/Update.hs	98;"	f
 corridor	src/Dodge/Room/Corridor.hs	17;"	f
-corridorBoss	src/Dodge/LockAndKey.hs	136;"	f
+corridorBoss	src/Dodge/LockAndKey.hs	135;"	f
 corridorN	src/Dodge/Room/Corridor.hs	58;"	f
 corridorWallN	src/Dodge/Room/Corridor.hs	77;"	f
 crAdd	src/Dodge/Room/RezBox.hs	116;"	f
@@ -3232,7 +3238,7 @@ doFloatFloat	src/Dodge/FloatFunction.hs	5;"	f
 doGenFloat	src/Dodge/HeldUse.hs	1174;"	f
 doGravityPU	src/Dodge/Projectile/Update.hs	35;"	f
 doHeldUseEffect	src/Dodge/HeldUse.hs	369;"	f
-doInPlacements	src/Dodge/Layout.hs	87;"	f
+doInPlacements	src/Dodge/Layout.hs	89;"	f
 doIndividualPlacements	src/Dodge/Layout.hs	101;"	f
 doInputScreenInput	src/Dodge/Update/Input/ScreenLayer.hs	38;"	f
 doItemTimeScroll	src/Dodge/Update.hs	206;"	f
@@ -3574,9 +3580,9 @@ gLauncher	src/Dodge/Item/Held/Launcher.hs	24;"	f
 gRandify	src/Dodge/Randify.hs	12;"	f
 gadgetEffect	src/Dodge/HeldUse.hs	49;"	f
 gameOverMenu	src/Dodge/Menu.hs	200;"	f
-gameRoomFromRoom	src/Dodge/Layout.hs	152;"	f
+gameRoomFromRoom	src/Dodge/Layout.hs	156;"	f
 gameRoomViewpoints	src/Dodge/Viewpoints.hs	35;"	f
-gameRoomsFromRooms	src/Dodge/Layout.hs	149;"	f
+gameRoomsFromRooms	src/Dodge/Layout.hs	153;"	f
 gameplayMenu	src/Dodge/Menu.hs	152;"	f
 gameplayMenuOptions	src/Dodge/Menu.hs	155;"	f
 gasEffect	src/Dodge/Update.hs	855;"	f
@@ -3585,7 +3591,7 @@ gassesNearPoint	src/Dodge/Zoning/Cloud.hs	12;"	f
 generateGenParams	src/Dodge/LevelGen/LevelStructure.hs	23;"	f
 generateGraphs	src/Dodge/Menu.hs	147;"	f
 generateLayout	src/Dodge/Layout/Generate.hs	11;"	f
-generateLevelFromRoomList	src/Dodge/Layout.hs	35;"	f
+generateLevelFromRoomList	src/Dodge/Layout.hs	37;"	f
 generateWorldFromSeed	src/Dodge/LevelGen.hs	18;"	f
 geom	src/Shader/Data.hs	110;"	f
 geometryQuickCheckTests	test/Spec.hs	55;"	f
@@ -3603,8 +3609,8 @@ getCloseObj	src/Dodge/Update/Input/InGame.hs	539;"	f
 getCommand	src/Dodge/Terminal.hs	61;"	f
 getCommands	src/Dodge/Terminal.hs	58;"	f
 getCrMoveSpeed	src/Dodge/Creature/Statistics.hs	50;"	f
-getCrsFromRooms	src/Dodge/Room/Tutorial.hs	496;"	f
-getCrsFromRooms'	src/Dodge/Room/Tutorial.hs	483;"	f
+getCrsFromRooms	src/Dodge/Room/Tutorial.hs	489;"	f
+getCrsFromRooms'	src/Dodge/Room/Tutorial.hs	476;"	f
 getDebugMouseOver	src/Dodge/Update.hs	424;"	f
 getDistortions	src/Dodge/Render.hs	443;"	f
 getEdgesCrossing	src/Dodge/Path.hs	37;"	f
@@ -3621,14 +3627,14 @@ getNodePos	src/Dodge/Path.hs	34;"	f
 getPJStabiliser	src/Dodge/HeldUse.hs	1268;"	f
 getPretty	src/AesonHelp.hs	8;"	f
 getPromptTM	src/Dodge/Terminal/Type.hs	3;"	f
-getRoomFromID	src/Dodge/Room/LasTurret.hs	195;"	f
-getRoomsFromInts	src/Dodge/Room/Tutorial.hs	479;"	f
+getRoomFromID	src/Dodge/Room/Modify.hs	31;"	f
+getRoomsFromInts	src/Dodge/Room/Tutorial.hs	472;"	f
 getRootItemBounds	src/Dodge/Render/HUD.hs	106;"	f
 getRootItemInvID	src/Dodge/Inventory/Location.hs	35;"	f
 getSelectedCloseObj	src/Dodge/SelectedClose.hs	14;"	f
 getSmoothScrollValue	src/Dodge/SmoothScroll.hs	21;"	f
 getSplitString	src/Dodge/Debug/Terminal.hs	129;"	f
-getTiles	src/Dodge/Layout.hs	200;"	f
+getTiles	src/Dodge/Layout.hs	207;"	f
 getViewpoints	src/Dodge/Viewpoints.hs	29;"	f
 getVolleyBurst	src/Dodge/HeldUse.hs	129;"	f
 getWallPathing	src/Dodge/Wall/Pathing.hs	7;"	f
@@ -3707,8 +3713,8 @@ headLampShape	src/Dodge/Item/Draw/SPic.hs	422;"	f
 headMap	src/Dodge/DoubleTree.hs	118;"	f
 headPQ	src/Dodge/Creature/HandPos.hs	116;"	f
 healS	src/Dodge/SoundLogic/ExternallyGeneratedSounds.hs	627;"	f
-healthAnalyserByDoor	src/Dodge/Room/LasTurret.hs	105;"	f
-healthTest	src/Dodge/Room/LasTurret.hs	127;"	f
+healthAnalyserByDoor	src/Dodge/Room/LasTurret.hs	108;"	f
+healthTest	src/Dodge/Room/LasTurret.hs	130;"	f
 heightWallPS	src/Dodge/Placement/Instance/Wall.hs	24;"	f
 heldAimStance	src/Dodge/Item/AimStance.hs	24;"	f
 heldAimZoom	src/Dodge/Update/Camera.hs	157;"	f
@@ -3892,7 +3898,7 @@ itemInternalValue	src/Dodge/Item/Display.hs	34;"	f
 itemInvColor	src/Dodge/Item/InventoryColor.hs	9;"	f
 itemInvLock	src/Dodge/HeldUse.hs	454;"	f
 itemMuzzles	src/Dodge/HeldUse.hs	172;"	f
-itemRooms	src/Dodge/LockAndKey.hs	41;"	f
+itemRooms	src/Dodge/LockAndKey.hs	40;"	f
 itemRotTreeSPic	src/Dodge/Item/Draw/SPicTree.hs	16;"	f
 itemSPic	src/Dodge/Item/Draw/SPic.hs	17;"	f
 itemScan	src/Dodge/Item/Scope.hs	68;"	f
@@ -3930,9 +3936,9 @@ justify	src/Justify.hs	9;"	f
 k	src/ShortShow.hs	48;"	f
 k'	src/ShortShow.hs	48;"	f
 keyCard	src/Dodge/Item/Held/Utility.hs	20;"	f
-keyCardAnalyserByDoor	src/Dodge/Room/LasTurret.hs	102;"	f
-keyCardRoomRunPast	src/Dodge/Room/LasTurret.hs	90;"	f
-keyCardRunPastRand	src/Dodge/LockAndKey.hs	38;"	f
+keyCardAnalyserByDoor	src/Dodge/Room/LasTurret.hs	105;"	f
+keyCardRoomRunPast	src/Dodge/Room/LasTurret.hs	93;"	f
+keyCardRunPastRand	src/Dodge/LockAndKey.hs	37;"	f
 keyPic	src/Dodge/Item/Draw/SPic.hs	438;"	f
 keyholeCorridor	src/Dodge/Room/Corridor.hs	45;"	f
 knifeS	src/Dodge/SoundLogic/ExternallyGeneratedSounds.hs	741;"	f
@@ -3943,19 +3949,19 @@ lConnectMulti	src/Dodge/Render/Connectors.hs	51;"	f
 lShape	src/Dodge/Placement/Instance/LightSource.hs	57;"	f
 lamp	src/Dodge/Creature/Lamp.hs	18;"	f
 lampCrSPic	src/Dodge/Render/ShapePicture.hs	125;"	f
-lasCenRunClose'	src/Dodge/Room/LasTurret.hs	321;"	f
-lasCenRunClose1	src/Dodge/Room/LasTurret.hs	410;"	f
-lasCenRunClose2	src/Dodge/Room/LasTurret.hs	483;"	f
-lasCenRunCloseLongCor	src/Dodge/Room/LasTurret.hs	375;"	f
-lasCenSensEdge	src/Dodge/Room/LasTurret.hs	162;"	f
+lasCenRunClose'	src/Dodge/Room/LasTurret.hs	309;"	f
+lasCenRunClose1	src/Dodge/Room/LasTurret.hs	398;"	f
+lasCenRunClose2	src/Dodge/Room/LasTurret.hs	471;"	f
+lasCenRunCloseLongCor	src/Dodge/Room/LasTurret.hs	363;"	f
+lasCenSensEdge	src/Dodge/Room/LasTurret.hs	165;"	f
 lasGunPic	src/Dodge/Item/Draw/SPic.hs	413;"	f
 lasPulseS	src/Dodge/SoundLogic/ExternallyGeneratedSounds.hs	731;"	f
-lasRunRand	src/Dodge/Room/LasTurret.hs	480;"	f
-lasRunYinYang	src/Dodge/Room/LasTurret.hs	198;"	f
-lasRunYinYangCenter	src/Dodge/Room/LasTurret.hs	261;"	f
-lasSensorTurretTest	src/Dodge/Room/LasTurret.hs	139;"	f
-lasTunnel	src/Dodge/Room/LasTurret.hs	521;"	f
-lasTunnelRunPast	src/Dodge/Room/LasTurret.hs	562;"	f
+lasRunRand	src/Dodge/Room/LasTurret.hs	468;"	f
+lasRunYinYang	src/Dodge/Room/LasTurret.hs	186;"	f
+lasRunYinYangCenter	src/Dodge/Room/LasTurret.hs	249;"	f
+lasSensorTurretTest	src/Dodge/Room/LasTurret.hs	142;"	f
+lasTunnel	src/Dodge/Room/LasTurret.hs	509;"	f
+lasTunnelRunPast	src/Dodge/Room/LasTurret.hs	550;"	f
 lasTurret	src/Dodge/Placement/Instance/Turret.hs	35;"	f
 laser	src/Dodge/Item/Held/BatteryGuns.hs	27;"	f
 laserSpark	src/Dodge/Material/Damage.hs	37;"	f
@@ -3979,8 +3985,8 @@ legsSPic	src/Dodge/Item/Draw/SPic.hs	447;"	f
 lerpP2A	src/Dodge/ShiftPoint.hs	14;"	f
 liShape	src/Dodge/Placement/Instance/LightSource.hs	82;"	f
 light	src/Color.hs	131;"	f
-lightSensByDoor	src/Dodge/Room/LasTurret.hs	75;"	f
-lightSensInsideDoor	src/Dodge/Room/LasTurret.hs	63;"	f
+lightSensByDoor	src/Dodge/Room/LasTurret.hs	77;"	f
+lightSensInsideDoor	src/Dodge/Room/LasTurret.hs	64;"	f
 lightSensor	src/Dodge/Placement/Instance/Sensor.hs	33;"	f
 lightsToRender	src/Dodge/Render/Lights.hs	14;"	f
 lightx4	src/Color.hs	155;"	f
@@ -4122,7 +4128,7 @@ maybeDestroyDoor	src/Dodge/Wall/Damage.hs	141;"	f
 maybeExitCombine	src/Dodge/Update/Input/InGame.hs	568;"	f
 maybeOpenConsole	src/Dodge/Update.hs	133;"	f
 maybeReadFile	src/Dodge/LoadSeed.hs	10;"	f
-maybeTakeOne	src/RandomHelp.hs	118;"	f
+maybeTakeOne	src/RandomHelp.hs	135;"	f
 maybeWarmupStatus	src/Dodge/Item/Display.hs	45;"	f
 mcBackgroundSound	src/Dodge/Machine/Update.hs	153;"	f
 mcColor	src/Dodge/Machine/Draw.hs	83;"	f
@@ -4277,7 +4283,7 @@ normalizeAnglePi	src/Dodge/Base.hs	154;"	f
 normalizeColor	src/Color.hs	103;"	f
 normalizeV	src/Geometry/Vector.hs	44;"	f
 normalizeV3	src/Geometry/Vector3D.hs	84;"	f
-notLink	src/Dodge/Data/Room.hs	72;"	f
+notLink	src/Dodge/Data/Room.hs	76;"	f
 nulgate	src/Dodge/Item/Scope.hs	101;"	f
 numDrawableVertices	src/Shader/Parameters.hs	34;"	f
 numGLuint	src/Shader/Parameters.hs	29;"	f
@@ -4344,7 +4350,7 @@ pairsToSCC	src/Dodge/Graph.hs	32;"	f
 paletteToColor	src/Color.hs	85;"	f
 parseItem	src/Dodge/Debug/Terminal.hs	62;"	f
 parseNum	src/Dodge/Debug/Terminal.hs	77;"	f
-passthroughLockKeyLists	src/Dodge/Room/Tutorial.hs	561;"	f
+passthroughLockKeyLists	src/Dodge/Room/Tutorial.hs	554;"	f
 pathConnected	src/Dodge/Room/CheckConsistency.hs	13;"	f
 pathEdgeObstructed	src/Dodge/Path.hs	66;"	f
 pauseAndFloatCam	src/Dodge/Camera.hs	10;"	f
@@ -4385,6 +4391,7 @@ plNew	src/Dodge/Base/NewID.hs	19;"	f
 plNewID	src/Dodge/Base/NewID.hs	7;"	f
 plNewUpID	src/Dodge/Base/NewID.hs	13;"	f
 plNewUsing	src/Dodge/Base/NewID.hs	27;"	f
+plPriority	src/Dodge/Layout.hs	112;"	f
 plRRpt	src/Dodge/LevelGen/PlacementHelper.hs	33;"	f
 placeChasm	src/Dodge/Placement/PlaceSpot.hs	153;"	f
 placeMachineWalls	src/Dodge/Placement/PlaceSpot.hs	216;"	f
@@ -4392,7 +4399,7 @@ placePlainPSSpot	src/Dodge/Placement/PlaceSpot.hs	41;"	f
 placeSpot	src/Dodge/Placement/PlaceSpot.hs	33;"	f
 placeSpotID	src/Dodge/Placement/PlaceSpot.hs	102;"	f
 placeSpotRoomRand	src/Dodge/Placement/PlaceSpot.hs	87;"	f
-placeSpotUsingLink	src/Dodge/Placement/PlaceSpot.hs	65;"	f
+placeSpotUsingRoomPos	src/Dodge/Placement/PlaceSpot.hs	65;"	f
 placeWallPoly	src/Dodge/Placement/PlaceSpot.hs	164;"	f
 plainRegex	src/Dodge/DisplayInventory.hs	193;"	f
 playIfFree	src/Sound.hs	139;"	f
@@ -4482,7 +4489,7 @@ powlist	src/Multiset.hs	61;"	f
 powlistUpToN	src/Multiset.hs	23;"	f
 powlistUpToN'	src/Multiset.hs	12;"	f
 powlistUpToN''	src/Multiset.hs	31;"	f
-preCritStart	src/Dodge/Room/Start.hs	83;"	f
+preCritStart	src/Dodge/Room/Start.hs	84;"	f
 prePos	src/Quaternion.hs	64;"	f
 preloadRender	src/Preload/Render.hs	29;"	f
 premapMaybe	src/FoldlHelp.hs	26;"	f
@@ -4536,7 +4543,7 @@ putDoor	src/Dodge/Room/Airlock.hs	114;"	f
 putDoubleDoor	src/Dodge/Placement/Instance/Door.hs	17;"	f
 putDoubleDoorThen	src/Dodge/Placement/Instance/Door.hs	21;"	f
 putImmediateMessageTerminal	src/Dodge/Placement/Instance/Terminal.hs	60;"	f
-putLamp	src/Dodge/Placement/Instance/LightSource.hs	202;"	f
+putLamp	src/Dodge/Placement/Instance/LightSource.hs	203;"	f
 putLasTurret	src/Dodge/Placement/Instance/Turret.hs	23;"	f
 putLitButOnPos	src/Dodge/Placement/Instance/Button.hs	65;"	f
 putLitButOnPosExtTrig	src/Dodge/Placement/Instance/Button.hs	98;"	f
@@ -4570,22 +4577,22 @@ randDirSpark	src/Dodge/Spark.hs	56;"	f
 randEdgeTank	src/Dodge/Room/Tanks.hs	34;"	f
 randEdgeTanks	src/Dodge/Room/Tanks.hs	52;"	f
 randFirstWeapon	src/Dodge/Placement/Random.hs	8;"	f
-randFromPair	src/RandomHelp.hs	143;"	f
-randInArc	src/RandomHelp.hs	83;"	f
-randInArcStrip	src/RandomHelp.hs	86;"	f
-randInCirc	src/RandomHelp.hs	75;"	f
-randInHemisphere	src/RandomHelp.hs	106;"	f
-randInRect	src/RandomHelp.hs	112;"	f
-randOnCirc	src/RandomHelp.hs	78;"	f
-randOnHemisphere	src/RandomHelp.hs	99;"	f
-randOnUnitSphere	src/RandomHelp.hs	92;"	f
-randPeaked	src/RandomHelp.hs	140;"	f
-randPeakedParam	src/RandomHelp.hs	132;"	f
-randProb	src/RandomHelp.hs	70;"	f
+randFromPair	src/RandomHelp.hs	161;"	f
+randInArc	src/RandomHelp.hs	100;"	f
+randInArcStrip	src/RandomHelp.hs	103;"	f
+randInCirc	src/RandomHelp.hs	92;"	f
+randInHemisphere	src/RandomHelp.hs	123;"	f
+randInRect	src/RandomHelp.hs	129;"	f
+randOnCirc	src/RandomHelp.hs	95;"	f
+randOnHemisphere	src/RandomHelp.hs	116;"	f
+randOnUnitSphere	src/RandomHelp.hs	109;"	f
+randPeaked	src/RandomHelp.hs	158;"	f
+randPeakedParam	src/RandomHelp.hs	149;"	f
+randProb	src/RandomHelp.hs	87;"	f
 randSpark	src/Dodge/Spark.hs	70;"	f
 randSparkExtraVel	src/Dodge/Spark.hs	93;"	f
 randWallReflect	src/Dodge/Update.hs	702;"	f
-randomChallenges	src/Dodge/Room/Start.hs	63;"	f
+randomChallenges	src/Dodge/Room/Start.hs	64;"	f
 randomCompass	src/Dodge/Layout.hs	60;"	f
 randomFourCornerRoom	src/Dodge/Room/Procedural.hs	246;"	f
 randomFourCornerRoomCrsIts	src/Dodge/Room/Procedural.hs	258;"	f
@@ -4594,11 +4601,11 @@ randomMediumRoom	src/Dodge/Room/Boss.hs	70;"	f
 randomPath	src/TreeHelp.hs	145;"	f
 randomPoints	bench/Bench.hs	37;"	f
 randomRanges	src/RandomHelp.hs	18;"	f
-randomSelectionFromList	src/RandomHelp.hs	67;"	f
+randomSelectionFromList	src/RandomHelp.hs	84;"	f
 randomTank	src/Dodge/Room/Tanks.hs	20;"	f
 randomTreeStructure	src/Dodge/Layout/Generate.hs	19;"	f
-randsOnCirc	src/RandomHelp.hs	129;"	f
-randsSpread	src/RandomHelp.hs	122;"	f
+randsOnCirc	src/RandomHelp.hs	146;"	f
+randsSpread	src/RandomHelp.hs	139;"	f
 ratIntersectLineLine	src/Geometry/Intersect.hs	214;"	f
 rdToVec2s	src/Dodge/Render.hs	426;"	f
 readSaveSlot	src/Dodge/Save.hs	45;"	f
@@ -4640,7 +4647,7 @@ removeAimPosture	src/Dodge/Creature/YourControl.hs	159;"	f
 removeAmmoFromMag	src/Dodge/HeldUse.hs	929;"	f
 removeDot	src/ShortShow.hs	44;"	f
 removeInverseWalls	src/Dodge/LevelGen/StaticWalls.hs	25;"	f
-removeLights	src/Dodge/Room/Tutorial.hs	394;"	f
+removeLights	src/Dodge/Room/Modify.hs	34;"	f
 removeShieldWall	src/Dodge/Item/BackgroundEffect.hs	71;"	f
 removeWallsInPolygon	src/Dodge/LevelGen/StaticWalls.hs	182;"	f
 renderDataResizeUpdate	src/Preload/Update.hs	27;"	f
@@ -4676,7 +4683,7 @@ reversePair	src/Dodge/LevelGen.hs	87;"	f
 rewinder	src/Dodge/Item/Held/Utility.hs	36;"	f
 rezBox	src/Dodge/Room/RezBox.hs	31;"	f
 rezBox'	src/Dodge/Room/RezBox.hs	46;"	f
-rezBoxStart	src/Dodge/Room/Start.hs	78;"	f
+rezBoxStart	src/Dodge/Room/Start.hs	79;"	f
 rezBoxes	src/Dodge/Room/RezBox.hs	119;"	f
 rezBoxesWpCrit	src/Dodge/Room/RezBox.hs	90;"	f
 rezColor	src/Dodge/Room/RezBox.hs	138;"	f
@@ -4752,7 +4759,7 @@ rprBool	src/Dodge/PlacementSpot.hs	74;"	f
 rprBoolShift	src/Dodge/PlacementSpot.hs	109;"	f
 rprShift	src/Dodge/PlacementSpot.hs	100;"	f
 rsObjectColor	src/Dodge/RadarSweep/Draw.hs	34;"	f
-runPastStart	src/Dodge/Room/Start.hs	72;"	f
+runPastStart	src/Dodge/Room/Start.hs	73;"	f
 runStateWorld	src/Dodge/Randify.hs	18;"	f
 sPS	src/Dodge/LevelGen/PlacementHelper.hs	27;"	f
 safeAngleVV	src/Geometry/Vector.hs	69;"	f
@@ -4818,15 +4825,15 @@ selSecSelSize	src/Dodge/SelectionSections.hs	143;"	f
 selSecYint	src/Dodge/SelectionSections.hs	152;"	f
 selectedItemScroll	src/Dodge/Update/Scroll.hs	47;"	f
 semitoneLoop1S	src/Dodge/SoundLogic/ExternallyGeneratedSounds.hs	785;"	f
-sensAboveDoor	src/Dodge/Room/SensorDoor.hs	53;"	f
-sensInsideDoor	src/Dodge/Room/SensorDoor.hs	59;"	f
+sensAboveDoor	src/Dodge/Room/SensorDoor.hs	64;"	f
+sensInsideDoor	src/Dodge/Room/SensorDoor.hs	73;"	f
 senseDamage	src/Dodge/Machine/Update.hs	264;"	f
 senseDamage'	src/Dodge/Wall/Damage.hs	61;"	f
 sensorReqToString	src/Dodge/Machine/Update.hs	242;"	f
-sensorRoom	src/Dodge/Room/SensorDoor.hs	26;"	f
-sensorRoomRunPast	src/Dodge/Room/SensorDoor.hs	46;"	f
+sensorRoom	src/Dodge/Room/SensorDoor.hs	31;"	f
+sensorRoomRunPast	src/Dodge/Room/SensorDoor.hs	55;"	f
 sensorSPic	src/Dodge/Machine/Draw.hs	99;"	f
-sensorTut	src/Dodge/Room/Tutorial.hs	505;"	f
+sensorTut	src/Dodge/Room/Tutorial.hs	498;"	f
 sensorTypeDamages	src/Dodge/Machine/Update.hs	288;"	f
 sensorTypeDamages	src/Dodge/Wall/Damage.hs	92;"	f
 sentinelAI	src/Dodge/Creature/SentinelAI.hs	20;"	f
@@ -4876,7 +4883,7 @@ setupFramebufferGivenStencil	src/Framebuffer/Setup.hs	31;"	f
 setupLoop	src/Loop.hs	30;"	f
 setupShadowFramebuffer	src/Framebuffer/Setup.hs	24;"	f
 setupVBO	src/Shader/Compile.hs	37;"	f
-setupWorldBounds	src/Dodge/Layout.hs	116;"	f
+setupWorldBounds	src/Dodge/Layout.hs	119;"	f
 sfInvColor	src/Dodge/Item/InventoryColor.hs	12;"	f
 shaderTypeExt	src/Shader/Compile.hs	59;"	f
 shapeBounds	src/Dodge/Room/Foreground.hs	147;"	f
@@ -4937,17 +4944,17 @@ showEquipItem	src/Dodge/Item/Display.hs	108;"	f
 showInt	src/Dodge/Item/Info.hs	75;"	f
 showIntsString	src/Dodge/Tree/Compose.hs	130;"	f
 showInventoryPathing	src/Dodge/Item/Display.hs	86;"	f
-showManObj	src/Dodge/TestString.hs	57;"	f
+showManObj	src/Dodge/TestString.hs	58;"	f
 showMuzzlePositions	src/Dodge/Debug.hs	254;"	f
 showTerminalError	src/Dodge/Debug/Terminal.hs	80;"	f
-showTimeFlow	src/Dodge/TestString.hs	66;"	f
+showTimeFlow	src/Dodge/TestString.hs	67;"	f
 shrinkPolyOnEdges	src/Geometry/Polygon.hs	183;"	f
 shrinkVert	src/Geometry/Polygon.hs	187;"	f
-shuffle	src/RandomHelp.hs	51;"	f
+shuffle	src/RandomHelp.hs	68;"	f
 shuffleLinks	src/Dodge/Room/Link.hs	30;"	f
-shufflePair	src/RandomHelp.hs	148;"	f
-shuffleRoomPos	src/Dodge/Layout.hs	82;"	f
-shuffleTail	src/RandomHelp.hs	61;"	f
+shufflePair	src/RandomHelp.hs	166;"	f
+shuffleRoomPos	src/Dodge/Layout.hs	86;"	f
+shuffleTail	src/RandomHelp.hs	78;"	f
 sigmoid	src/Dodge/Base.hs	151;"	f
 simpleCrSprings	src/Dodge/Update.hs	931;"	f
 simpleTermMessage	src/Dodge/Terminal.hs	275;"	f
@@ -4995,7 +5002,7 @@ snailAround	src/Dodge/Path.hs	78;"	f
 snapToGrid	src/Dodge/Path.hs	129;"	f
 sndV2	src/Geometry/Data.hs	73;"	f
 sniperRifle	src/Dodge/Item/Held/Rod.hs	44;"	f
-someCrits	src/Dodge/LockAndKey.hs	123;"	f
+someCrits	src/Dodge/LockAndKey.hs	122;"	f
 soundAngle	src/Dodge/SoundLogic.hs	163;"	f
 soundContinue	src/Dodge/SoundLogic.hs	131;"	f
 soundContinueVol	src/Dodge/SoundLogic.hs	145;"	f
@@ -5018,7 +5025,7 @@ spanColLightBlackI	src/Dodge/Placement/Instance/LightSource.hs	176;"	f
 spanColLightI	src/Dodge/Placement/Instance/LightSource.hs	169;"	f
 spanLS	src/Dodge/Placement/Instance/LightSource.hs	161;"	f
 spanLightI	src/Dodge/Placement/Instance/LightSource.hs	183;"	f
-spanLightY	src/Dodge/Placement/Instance/LightSource.hs	186;"	f
+spanLightY	src/Dodge/Placement/Instance/LightSource.hs	187;"	f
 sparkDam	src/Dodge/Spark.hs	37;"	f
 sparkRandDir	src/Dodge/Spark.hs	117;"	f
 sparkToDamage	src/Dodge/Spark.hs	40;"	f
@@ -5068,7 +5075,7 @@ stackPicturesAtOff	src/Dodge/Render/List.hs	98;"	f
 stackText	src/Picture/Base.hs	180;"	f
 stackedInventory	src/Dodge/Creature.hs	324;"	f
 startCr	src/Dodge/Creature.hs	90;"	f
-startCrafts	src/Dodge/Room/Start.hs	93;"	f
+startCrafts	src/Dodge/Room/Start.hs	94;"	f
 startDrag	src/Dodge/Update/Input/InGame.hs	285;"	f
 startInvList	src/Dodge/Creature.hs	105;"	f
 startInventory	src/Dodge/Creature.hs	108;"	f
@@ -5090,7 +5097,7 @@ stopBulletAt	src/Dodge/Bullet.hs	200;"	f
 stopPushing	src/Dodge/Wall/Damage.hs	172;"	f
 stopSoundFrom	src/Dodge/SoundLogic.hs	220;"	f
 storageShape	src/Dodge/Machine/Draw.hs	31;"	f
-storeRoomID	src/Dodge/Room/LasTurret.hs	187;"	f
+storeRoomID	src/Dodge/Room/Modify.hs	23;"	f
 strFromEquipment	src/Dodge/Creature/Statistics.hs	53;"	f
 strFromHeldItem	src/Dodge/Creature/Statistics.hs	67;"	f
 strengthFactor	src/Dodge/Creature/Impulse/Movement.hs	51;"	f
@@ -5114,11 +5121,13 @@ t	src/ShortShow.hs	48;"	f
 tEast	src/Dodge/Room/Corridor.hs	96;"	f
 tToBTree	src/Dodge/Tree/Compose.hs	93;"	f
 tWest	src/Dodge/Room/Corridor.hs	121;"	f
-takeN	src/RandomHelp.hs	46;"	f
-takeNMore	src/RandomHelp.hs	43;"	f
+takeN	src/RandomHelp.hs	63;"	f
+takeNMore	src/RandomHelp.hs	60;"	f
 takeOne	src/RandomHelp.hs	24;"	f
-takeOneMore	src/RandomHelp.hs	36;"	f
-takeOneWeighted	src/RandomHelp.hs	27;"	f
+takeOneFiltered	src/RandomHelp.hs	34;"	f
+takeOneMore	src/RandomHelp.hs	53;"	f
+takeOneRem	src/RandomHelp.hs	27;"	f
+takeOneWeighted	src/RandomHelp.hs	44;"	f
 takeUntil	src/FoldableHelp.hs	99;"	f
 takeWhileArb	src/ListHelp.hs	100;"	f
 takeWhileArb'	src/ListHelp.hs	108;"	f
@@ -5157,7 +5166,7 @@ testEvent	src/Dodge/Event/Test.hs	11;"	f
 testInventory	src/Dodge/Creature.hs	305;"	f
 testPic	src/Dodge/Render/ShapePicture.hs	57;"	f
 testSPic	src/Dodge/Render/ShapePicture.hs	54;"	f
-testStringInit	src/Dodge/TestString.hs	34;"	f
+testStringInit	src/Dodge/TestString.hs	35;"	f
 text	src/Picture/Base.hs	185;"	f
 textGrad	src/Picture/Text.hs	5;"	f
 textInputBlurb	src/Dodge/Terminal.hs	43;"	f
@@ -5189,7 +5198,7 @@ throb1S	src/Dodge/SoundLogic/ExternallyGeneratedSounds.hs	801;"	f
 throbC4S	src/Dodge/SoundLogic/ExternallyGeneratedSounds.hs	761;"	f
 throwItem	src/Dodge/Creature/Action.hs	191;"	f
 tileTexCoords	src/Tile.hs	11;"	f
-tilesFromRooms	src/Dodge/Layout.hs	197;"	f
+tilesFromRooms	src/Dodge/Layout.hs	204;"	f
 tilesToLine	src/Shader/AuxAddition.hs	66;"	f
 timeFlowUpdate	src/Dodge/Update.hs	181;"	f
 timeScroller	src/Dodge/Item/Held/Utility.hs	42;"	f
@@ -5235,7 +5244,7 @@ tone440sawtoothquietS	src/Dodge/SoundLogic/ExternallyGeneratedSounds.hs	663;"	f
 topInvW	src/Dodge/ListDisplayParams.hs	54;"	f
 topPrismEdgeIndices	src/Shader/Poke.hs	335;"	f
 topPrismIndices	src/Shader/Poke.hs	410;"	f
-topTestPart	src/Dodge/TestString.hs	53;"	f
+topTestPart	src/Dodge/TestString.hs	54;"	f
 torchShape	src/Dodge/Item/Draw/SPic.hs	276;"	f
 torqueAmount	src/Dodge/HeldUse.hs	596;"	f
 torqueCr	src/Dodge/WorldEffect.hs	86;"	f
@@ -5310,11 +5319,11 @@ turnTo	src/Dodge/Movement/Turn.hs	8;"	f
 turretItemOffset	src/Dodge/Item/HeldOffset.hs	22;"	f
 tutAnoTree	src/Dodge/Room/Tutorial.hs	51;"	f
 tutDrop	src/Dodge/Room/Tutorial.hs	112;"	f
-tutHub	src/Dodge/Room/Tutorial.hs	401;"	f
+tutHub	src/Dodge/Room/Tutorial.hs	394;"	f
 tutLight	src/Dodge/Room/Tutorial.hs	362;"	f
-tutRezBox	src/Dodge/Room/Tutorial.hs	516;"	f
+tutRezBox	src/Dodge/Room/Tutorial.hs	509;"	f
 tutRoomTree	src/Dodge/Floor.hs	20;"	f
-tutorialMessage1	src/Dodge/Room/Tutorial.hs	541;"	f
+tutorialMessage1	src/Dodge/Room/Tutorial.hs	534;"	f
 tweenAngles	src/Geometry/Vector.hs	190;"	f
 twinSlowDoorChasers	src/Dodge/Room/LongDoor.hs	79;"	f
 twinSlowDoorRoom	src/Dodge/Room/LongDoor.hs	34;"	f
@@ -5543,7 +5552,7 @@ wallBlips	src/Dodge/RadarSweep.hs	99;"	f
 wallBuffer	src/Dodge/WallCreatureCollisions.hs	54;"	f
 wallIsZeroLength	src/Dodge/LevelGen/StaticWalls.hs	179;"	f
 wallToSurface	src/Dodge/Base/Collide.hs	180;"	f
-wallsFromRooms	src/Dodge/Layout.hs	137;"	f
+wallsFromRooms	src/Dodge/Layout.hs	141;"	f
 wallsToDraw	src/Dodge/Render/Walls.hs	18;"	f
 warmupSound	src/Dodge/HeldUse.hs	1393;"	f
 warningRooms	src/Dodge/Room/Warning.hs	33;"	f