Finished testing and docs for now. Time for new features!

game/position.rb

@@ -41,6 +41,11 @@ class Position
     return "(#{@x_pos}, #{y_pos})"
   end
 
+  # Custom comparison. We need to check the the point is the same, not the
+  # identity.
+  #
+  # @param other [Positon] The position to compare with
+  # @return [Boolean] If they are in the same position as each other.
   def ==(other)
     return other.x_pos == @x_pos && other.y_pos == @y_pos
   end