refactor: pushed a detail up the call stack.

Author: hemalvarambhia

lib/location.rb

@@ -17,7 +17,7 @@ def initialize(coordinates:, direction:)
     @direction = direction
   end
 
-  def forwards(direction = @direction)
+  def forwards(direction)
     case direction
     when 'N'
       Location.new(coordinates: Coordinates.new(x: x, y: y + 1), direction: @direction)
@@ -30,7 +30,7 @@ def forwards(direction = @direction)
     end
   end
 
-  def backwards(direction = @direction)
+  def backwards(direction)
     forwards(INVERT[direction])
   end
 

lib/map.rb

@@ -4,11 +4,11 @@
 class Map
 
   def forwards(location)
-    map_for(location.forwards).forwards(location)
+    map_for(location.forwards(location.direction)).forwards(location)
   end
 
   def backwards(location)
-    map_for(location.backwards).backwards(location)
+    map_for(location.backwards(location.direction)).backwards(location)
   end
 
   def rotate_left(location)