An agent control mechanism in virtual worlds for mobile users

We are developing a system that defines virtual worlds and present them as overlaying them onto the real world. People can visit them when they are walking about in a real city, with mobile terminals. We can define virtual buildings and virtual creatures as elements of a virtual world. For example, a virtual world may be an imaginary space of a role playing game scenario, and virtual creatures take their roles in the game. In this paper, we describe the agent control mechanism in virtual worlds and its implementation.