games rpg avatar

Objects may refer to 'resources' in the game, for things such as 'sprites' (graphics for display or animation), 'scripts' (php scripts that may be run at certain times), and 'nodes' (which refer to Drupal nodes, for use as the designer deigns).

Modules may define a new resource, using a hook (something like hook_rpg_resource). Once available, objects may or may not be supplied a hook by that module, allowing such things as an object to have a default sprite assigned for display.

A little question... is there an avatar system thought already?
Anyone considered one?

If there is one, where can I find information about it and get involved on it's development.
What else can I help with?