move forward when facing east or west.

1 files changed, 6 insertions, 0 deletions

diff --git a/lib/rover.rb b/lib/rover.rb
index 35ab1f9..90d7757 100644
--- a/lib/rover.rb
+++ b/lib/rover.rb
@@ -42,6 +42,9 @@ class East
   def turn_left
     North.new
   end
+  def forward(current_location)
+    current_location[:x] = current_location[:x]+1
+  end
 end
 class West
   def direction
@@ -53,6 +56,9 @@ class West
   def turn_left
     South.new
   end
+  def forward(current_location)
+    current_location[:x] = current_location[:x]-1
+  end
 end
 class South
   def direction