The design for this prototype was based on a simple model of sensations and emotions:
Two finite-state components are developed to implement the design:
Evaluation of the system reveals the benefits of simple emotions for improving believability, but also technical problems:
The next two chapters investigate extensions to finite-state machines that can solve these problems. Fuzzy-state machines can have partial degrees for emotions, probabilistic models make the sensations less predictable, and hierarchical systems simplify the modeling of complex moods. |