     @VERTICAL = 2
 
   class Orientation
-    @TOP = 0
+    @UP = 0
     @RIGHT = 1
-    @BOTTOM = 2
+    @DOWN = 2
     @LEFT = 3
 
   constructor: (source, grid) ->

        @_animateTo(
                     p,
                     StreetDirection.VERTICAL,
                     Orientation.TOP,
                     callback
                   )
      @currentStreetDirection = StreetDirection.VERTICAL

                                  () =>
                                    @currentTimer = null
                                    k = -1
                                    if orientation is Orientation.DOWN or orientation is Orientation.RIGHT
                                      k = 1

                                    if direction is StreetDirection.HORIZONTAL
