Add concept of GameRoom, check viewing distance based on rooms

src/Geometry/ConvexPoly.hs

@@ -8,6 +8,7 @@ module Geometry.ConvexPoly
     , centroid
     , pointsToPoly
     , convexPolysOverlap
+    , pointInPolyPoints
     ) where
 import Geometry.Data
 import Geometry.Vector