Use symbols instead of strings in name-util.

data/plugins/util/name-lookup.rb

@@ -2,38 +2,39 @@ require 'java'
 
 # Looks up the id of the npc with the specified name.
 def lookup_npc(name)
-  return lookup_entity('npc', name)
+  return lookup_entity(:npc, name)
 end
 
 # Looks up the id of the item with the specified name.
 def lookup_item(name)
-  return lookup_entity('item', name)
+  return lookup_entity(:item, name)
 end
 
 # Looks up the id of the object with the specified name.
 def lookup_object(name)
-  return lookup_entity('object', name)
+  return lookup_entity(:object, name)
 end
 
-# Looks up the id of an entity of the specified type (either 'npc', 'item', or 'object')
-def lookup_entity(type, symbol)
-  symbol = symbol.to_s
-  cached = NAME_CACHE[type + symbol]
+# Looks up the id of an entity of the specified type (either :npc, :item, or :object)
+def lookup_entity(type, name)
+  type = type.to_s
+  name = name.to_s.gsub('_', ' ')
+  
+  cached = NAME_CACHE[type + name]
   return cached unless cached.nil?
 
-  name = symbol.to_s.gsub('_', ' ')
   id = name[name.rindex(' ') + 1, name.length - 1].to_i if name.include?(' ')
   id = find_entities(type, name, 1).first if (id .nil? || id.zero?)
   
   raise "The #{type} called #{name} could not be identified." if id.nil?
 
-  NAME_CACHE[type + symbol] = id
+  NAME_CACHE[type + name] = id
   return id
 end
 
 # Finds entities with the specified type (e.g. npc) and name, returning possible ids as an array.
 def find_entities(type, name, limit=5)
-  ids = [];
+  ids = []
   name.downcase!
 
   Kernel.const_get("#{type.capitalize}Definition").definitions.each do |definition|