lib/remedy/size.rb in remedy-0.3.1 vs lib/remedy/size.rb in remedy-0.4.0

@@ -9,10 +9,14 @@
       end
       @dimensions = new_dimensions
     end
     attr_accessor :dimensions
 
+    def self.zero
+      self.new([0,0])
+    end
+
     def - other_size
       if other_size.respond_to? :length then
         self.class.new subtract(other_size)
       else
         self.class.new deduct(other_size)
@@ -39,14 +43,16 @@
     end
 
     def rows
       dimensions[0]
     end
+    alias_method :height, :rows
 
     def cols
       dimensions[1]
     end
-    alias :columns :cols
+    alias_method :columns, :cols
+    alias_method :width, :cols
 
     def [] index
       dimensions[index]
     end