Prey agent design

The initial agents are the herbivorous prey; they eat food that gets scattered around the board every cycle. The actions available to these agents are doing nothing, turning, walking, mating, selecting food and eating the selected food. The observations they can use are self health examination, self age examination, determining whether any food, potential mates, or predators are around, and food analysis.

The reason why the food selection and analysis is included is to see whether deliberative agents can be evolved. Agents should learn to analyse their food more before eating it, ie. they should learn to deliberate over whether to eat the food. If the introduction of predators causes a reversal of a trend to deliberate, this is analogous to emotion as a shortcut to deliberation.