/*
 * sim.cpp
 *
 *  Created on: Oct 12, 2010
 *      Author: Michael J. Fischer
 *      for use in Yale course CPSC 427a, Fall 2010
 */

#include "sim.hpp"

Simulator::Simulator(Params& p) :
    p(p), numTrials(p.getNumTrials()), totCount(0), rnd(p.getNumPlayers(),
            p.getSeed()), pop(p.getAlgorithm(), p.getNumPlayers()) {
}

void Simulator::oneTrial() {
    int sender, receiver;
    sender = rnd.gen();
    do {
        receiver = rnd.gen();
    } while (sender == receiver);
    pop.oneStep(sender, receiver);
}

void Simulator::experiment() {
    totCount = 0;
    for (int t = 0; t < numTrials; t++) {
        pop.reset();
        do {
            oneTrial();
            totCount++;
        } while (0 < pop.getNumOnes() && pop.getNumOnes() < pop.getNumPlayers());
    }
}

ostream& Simulator::printResults(ostream& out) const {
    double avgCount = (double) totCount / numTrials;
    out << "Experiment finished in " << avgCount << " rounds on average."
            << endl;
    return out;
}

ostream& Simulator::print(ostream& out) const {
    out << "[Simulator:\n";
    out << p;
    out << "  numTrials=" << numTrials << "\n";
    out << "  totCount=" << totCount << "\n";
    out << "End Simulator]" << endl;
    return out;
}