How to Easily Design Reusable Behaviours for Situated Characters?

Since the action selection mechanism chooses the next fired action, we claim that it is the place where the character’s behaviour is defined. We propose an ASM wich is able to produce believable and reusable behaviours for situated cognitive characters. It is defined as a combination of several motivations. It is modular and robust to evolutions of the environment, hence the designer task of building behaviour is made easier. The design of NPC in MMORPG can particularly derive benefit from this ASM.