Unity 2018 Artificial Intelligence Cookbook - Second Edition

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Not only it is important to define and balance strategies, but also the results of keeping track of the opponent's actions. That's why we need to implement a member function for adding them into the mix we talked about in the previous section:

public void TellOpponentActionRM(RPSAction action){  lastOpponentAction = action;  int i;  for (i = 0; i < numActions; i++)  {    regret[i] += GetUtility((RPSAction)lastActionRM[i], (RPSAction)action);    regret[i] -= GetUtility((RPSAction)lastAction, (RPSAction) action);  }}

Finally, it's important to balance the strategies and the utility function. It's pretty straightforward for RPS, but it could get as complex as our game.