* Move moving logic from Robot to State.

ledestin · Sep 18, 2014 · b105203 · b105203
1 parent adfe68d
commit b105203
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Showing 2 changed files with 6 additions and 2 deletions.
diff --git a/lib/robot.rb b/lib/robot.rb
@@ -35,8 +35,7 @@ def left
 
   def move
     new_coords = @coords.clone
-    new_coords.x += direction.delta_x
-    new_coords.y += direction.delta_y
+    new_coords.step!
     @coords = new_coords if @@table.contain?(new_coords.x, new_coords.y)
   end
 

diff --git a/lib/state.rb b/lib/state.rb
@@ -11,6 +11,11 @@ def initialize x, y, direction
       raise ArgumentError, $!.message
     end
 
+    def step!
+      self.x += direction.delta_x
+      self.y += direction.delta_y
+    end
+
     def to_s
       [x, y, direction].join ','
     end