Phase 2 of the experiment faced the challenge of the authoring
of behaviors by the AI engineer under the authorial control of the
animation director. The behavior described by the writer was encoded
in a plan library, then tested onto different goals and scene
configurations; the refinement went on until the animation director
judged the result satisfactory for the coherence and recognizability
of the generated action sequences. The plan library
contained 17 complex actions (methods) and 21 primitive actions
(operators), that were mapped onto the actions in the catalogue.
The planner was tested on 20 different scenarios, where the AnimaTricks
agents were given different tasks (or the same tasks with
different parameters). Output plans ranged from 16 to 32 actions;
5 scenarios were selected to run the evaluation based on the procedural
animation techniques required. The plan library included
actions such as entering, sitting at the desk to accomplish several
tasks, like doing or receiving phone calls, hand-writing letters
and notes, getting up to take objects (pen, sheets, etc.) when
necessary.