3d adventure, interacting with objects, types,

Well once you picked an entity, you could access to a type item associated with it.

For example, you could create your entities and store the entity # in a type structure; later, when you pick an entity, you can scan the type list until you find the one picked.

my_new_entity = createcube() ;create a new entity
list = new t_list ;and a new type element which stores info
list\entity = my_new_entity ;assign to the field entity the entity#

;later: scan the entity list
picked = entitypick(.....)
if picked then
   for list.t_list = each t_list
      if list\entity = picked then
        ;read the entity info here
        exit
      endif
   next
endif

Hope it has sense for you,
Sergio.