Read in the paper "Communication in Reactive Multiagent Robotic Systems" by TUCKER BALCH AND RONALD C. ARKIN:

Our research focuses on three tasks: foraging, consuming, and grazing. Foraging consists of searching the environment for objects (referred to as attractors) and carrying them back to a cen-tral location. Consuming requires the robot to perform work on the attractors in place, rather than carrying them back. Grazing is similar to lawn mowing; the robot or robot team must ad- equately cover the environment. Of these three, foraging has been the most widely studied to date

I put this stuff here because with the location based game developed here, we also want to simulate the activity of the participant with a multi agent thing...