anchor.diff:  		}
   	end.
   
  +
  +make_entity_id() ->
  +	%list_to_binary(ref_to_list(make_ref())).
  +	base64:encode(crypto:sha(term_to_binary({make_ref(), os:timestamp()}))).
  
positive.code: 
  	% Set the entity's default behavior
  	Entity = InitialEntity#entity {
  		behavior = Behavior
  	},
  
  
negative.code: 
  create_entity(Behavior, Definition, ClientInfo=#client_info{}) ->
  	Entity = #entity {
  		id = make_entity_id(),
  		behavior = Behavior,
  		client = ClientInfo
  	},
  