diff --git a/src/Map/Creation.hs b/src/Map/Creation.hs
index 949fd97..0f2c60f 100644
--- a/src/Map/Creation.hs
+++ b/src/Map/Creation.hs
@@ -2,15 +2,22 @@ module Map.Creation
 where
 
 import Map.Types
+import Data.Array
 
 -- | Generate a new Map of given Type and Size
 --
 --   TODO:
 --   1. Should take Size -> Type -> Playmap
 --   2. plug together helper-functions for that terraintype
-newMap :: Int -> Int -> PlayMap
+newMap :: MapType -> (Int, Int) -> PlayMap
 newMap = undefined
 
+aplByPlace :: (Node -> Node) -> ((Int,Int) -> Bool) -> PlayMap -> PlayMap
+aplByPlace f g mp = array (bounds mp) (map (\(ab,c) -> if g ab then (ab, f c) else (ab,c)) (assocs mp))
+
+aplByNode :: (Node -> Node) -> (Node -> Bool) -> PlayMap -> PlayMap
+aplByNode f g mp = array (bounds mp) (map (\(ab,c) -> (if g c then (ab, f c) else (ab,c))) (assocs mp)) 
+
 
 -- | Basic Terrain-Generator. Will not implement "abnormal" Stuff for given Biome
 --   (like Deserts on Grass-Islands or Grass on Deserts)
diff --git a/src/Map/StaticMaps.hs b/src/Map/StaticMaps.hs
index 34c6136..abe047e 100644
--- a/src/Map/StaticMaps.hs
+++ b/src/Map/StaticMaps.hs
@@ -32,7 +32,6 @@ mnh2D (a,b) (c,d) = abs (a-c) + abs (b-d)
 mapEmpty :: PlayMap
 mapEmpty = array ((0,0), (199,199)) [((a,b), (Minimal (a,b))) | a <- [0..199], b <- [0..199]]
 
--- TODO: Stripify
 mapCenterMountain :: PlayMap
 mapCenterMountain = array ((0,0),(199,199)) nodes
     where