ALifeSim.java

import java.io.PrintWriter;

/**
 * The driver class.
 * Runs different experiments and
 * prints the results.
 */
public class ALifeSim {

  //main----------------------------------------

  public static void main(String[] args) throws Exception {
    PrintWriter pen = new PrintWriter("testing/pop100coop33.txt");

    if (args.length != 4) {
      throw new Error("Invalid number of arguments");
    }

    int iterations = Integer.parseInt(args[0]);

    int cooperators = Integer.parseInt(args[1]);
    int defectors = Integer.parseInt(args[2]);
    int partialCooperators = Integer.parseInt(args[3]);

    Pair<String, Integer>[] startingNumbers = (Pair<String, Integer>[]) (new Pair[3]);

    startingNumbers[0] = new Pair<String, Integer>("Cooperator", cooperators);
    startingNumbers[1] = new Pair<String, Integer>("Defector", defectors);
    startingNumbers[2] = new Pair<String, Integer>("PartialCooperator", partialCooperators);

    Population pop = new Population(startingNumbers);

    for (int j = 0; j < 10; j++) { 
      for (int i = 0; i < iterations; i++) {
        pop.update();
      }

      Pair<String, Integer>[] finalNumbers = pop.getPopulationCounts();

      pen.println("After " + iterations + " ticks:");
      pen.println("Cooperators = " + finalNumbers[0].getRight());
      pen.println("Defectors = " + finalNumbers[1].getRight());
      pen.println("Partial Cooperators = " + finalNumbers[2].getRight());
      pen.println("\nMean Cooperation Probability = " + pop.calculateCooperationMean());
    }

    pen.close();
  }
}