In this paper we propose to pave indoor floors with ``communicating'' tiles in order to extend perception and communication of mobile agents and more generally to implement environment-based multi-agent models. Each tile supports a real-time process which ensures communication with its neighbours and any agent laid on it. We details algorithms required for tiles to interact with mobile agents and to carry out distributed processes. Then we apply our approach to a behavior-based model, by splitting the model into the tiles and a simple agent model. We show this new version is equivalent to the original one and so discuss its advantages.