lib/latinum/collection.rb in latinum-0.2.0 vs lib/latinum/collection.rb in latinum-0.2.3

@@ -23,17 +23,19 @@
 
 module Latinum
 	class Collection
 		def initialize(names = Set.new)
 			@names = names
-			@resources = Hash.new {|hash, key| @names << key; BigDecimal.new(0)}
+			@resources = Hash.new {|hash, key| @names << key; BigDecimal.new("0")}
 		end
 		
 		attr :names
 		attr :resources
 		
 		def << resource
 			@resources[resource.name] += resource.amount
+			
+			return self
 		end
 		
 		def [] key
 			Resource.new(@resources[key], key)
 		end