diff --git a/src/Dodge/LevelGen/LevelStructure.hs b/src/Dodge/LevelGen/LevelStructure.hs
new file mode 100644
index 000000000..ca7a01d02
--- /dev/null
+++ b/src/Dodge/LevelGen/LevelStructure.hs
@@ -0,0 +1,15 @@
+{-# LANGUAGE TemplateHaskell #-}
+{-# LANGUAGE StrictData #-}
+module Dodge.LevelGen.LevelStructure where
+import Dodge.LevelGen.Data
+--import Dodge.Tree.Compose.Data
+import Dodge.Data
+
+--import Data.Tree
+import qualified Data.IntMap.Strict as IM
+--import System.Random
+
+data GenWorld = GenWorld
+    { _gWorld       :: World
+    , _gPlacements  :: IM.IntMap [Placement]
+    }
diff --git a/src/Dodge/Placement/Shift.hs b/src/Dodge/Placement/Shift.hs
new file mode 100644
index 000000000..cd7e0b767
--- /dev/null
+++ b/src/Dodge/Placement/Shift.hs
@@ -0,0 +1,19 @@
+module Dodge.Placement.Shift 
+    ( shiftPlacement
+    , shiftPSBy
+    ) where
+import Dodge.LevelGen.Data
+import Dodge.ShiftPoint
+import Geometry
+import Control.Lens
+shiftPSBy :: (Point2,Float) -> PlacementSpot -> PlacementSpot
+shiftPSBy (pos,rot) ps = ps
+    & psPos %~ shiftPointBy (pos,rot)
+    & psRot %~ (+ rot)
+shiftPlacement :: (Point2,Float) -> Placement -> Placement
+shiftPlacement shift plmnt = case plmnt of
+    Placement {} -> plmnt & plSpot %~ shiftPSBy shift 
+        & plIDCont %~ fmap (fmap $ shiftPlacement shift)
+    PlacementUsingPos p f -> PlacementUsingPos (shiftPoint3By shift p)
+        (fmap (shiftPlacement shift) f)
+    RandomPlacement rpl -> RandomPlacement $ fmap (shiftPlacement shift) rpl