Zone of Cooperation


Reference - <Zones of Cooperation in Demographic Prisoner's Dilemma, Joshua M. Epstein>
http://citeseerx.ist.psu.edu/viewdoc/download?doi=10.1.1.8.8629&rep=rep1&type=pdf

Everyone in this population is one of two types - cooperator(Green color) or defector(Red color). Agents move and play game, and payoffs accumulate. If accumulated payoff exceed some threshold, agents clone offspring of the same strategy(C-> C, D-> D). Agents have life(20 frames).

* * * Reward Table (Row Player, Column Player)
       C          D
C    (R, R)   (S, T)
D    (T, S)    (P, P)
