This demonstration describes the generation of ambient and latent NPC behavior scripts using generative behavior patterns with ScriptEase. Our behavior model supports behavior roles, a powerful mechanism that allows an NPC to change behavior sets during the story. Our motivation model for selecting ambient behaviors generates more realistic NPC behaviors and our novel collaboration protocol sim...

We demonstrate combat scenarios between two NPCs in the Neverwinter Nights (NWN) game in which an NPC uses a new learning algorithm ALeRT (Action-dependent Learning Rates with Trends) and the other NPC uses a static strategy (NWN default and optimal) or a dynamic strategy (dynamic scripting). We implemented the ALeRT algorithm in NWScript, a scripting language used by NWN, with the goal to impr...

Dedicated to my parents Dibakar, Sabita, and my lovely wife Ellina, for they were as much a part of this journey, as me. iii ACKNOWLEDGEMENTS Completing a dissertation is a long and difficult road that I never could have navigated alone. There are too many people I must thank, but a few deserve special note. First and foremost among them is my advisor, Prof. Kishore Ramachandran, without whose ...

Unsupervised online learning in commercial computer games allows computer-controlled opponents to adapt to the way the game is being played, thereby providing a mechanism to deal with weaknesses in the game AI and to respond to changes in human player tactics. For online learning to work in practice, it must be fast, effective, robust, and efficient. This paper proposes a novel technique called...