RPS with PRNG

// Rock Paper Scissors.cpp : Defines the entry point for the console application.
//

/*
    This is a test of the mersenne twister PRNG and how a PRNG would do in the game of Rock, paper, scissors.
    Please try this yourself and make modifications as you see fit.

    This program comes with no guarantees and no claim of ownership

    Mersenne twister: http://en.wikipedia.org/wiki/Mersenne_twister
*/

#include "stdafx.h" // Not used

#include <random>
#include <cmath>
#include <string>
#include <iostream>
#include <iomanip>

using namespace std;

int getRandomNumber()
{
    // Seed with a real random value, if available
    random_device rd;

    // Choose a random number between 1 and 3
    mt19937 e1(rd()); // The mersenne twister implementation
    uniform_int_distribution<int> uniform_dist(1, 3);
    return uniform_dist(e1);
}

class RPS
{
public:
    const enum outcome { ROCK = 1, PAPER, SCISSORS };

    RPS() : rps(getRandomNumber()) {};

    const bool operator== (const RPS &r1) { return this->rps == r1.rps; }
    const bool operator== (int r) { return this->rps == r; }

    const bool operator< (const RPS &r1) { return this->rps < r1.rps; }

    const bool operator> (const RPS &r1) { return this->rps > r1.rps; }

    // Makes it possible to print the result with text if we want that
    // Maybe we want to save the results in a txt file in the future
    string result()
    {
        switch (rps)
        {
        case RPS::outcome::ROCK:
            return "ROCK";
            break;
        case RPS::outcome::PAPER:
            return "PAPER";
            break;
        case RPS::outcome::SCISSORS:
            return "SCISSOR";
            break;
        default:
            return "Unknown value!";
            break;
        }
    }

    int value() { return rps; }
private:
    int rps;
};

int _tmain(int argc, _TCHAR* argv[]) // main()
{
    static int total = 1000000;
    int rock = 0, paper = 0, scissor = 0;
    for (int i = 0; i < total; i++)
    {
        RPS * r1 = new RPS();
        RPS * r2 = new RPS();

        if (*r1 < *r2)
        {
            // r1 < r2 means r1 could be rock or paper
            if (*r1 == RPS::outcome::ROCK)
            {
                if (*r2 == RPS::outcome::SCISSORS)
                    ++rock;
                else if (*r2 == RPS::outcome::PAPER)
                    ++paper;
            }
            else
                ++scissor;
        }
        else if (*r1 > *r2)
        {
            // r1 > r2 means r1 could be scissor or paper
            if (*r1 == RPS::outcome::SCISSORS)
            {
                if (*r2 == RPS::outcome::ROCK)
                    ++rock;
                else if (*r2 == RPS::outcome::PAPER)
                    ++scissor;
            }
            else
                ++paper;
        }
        else if (*r1 == *r2)
        {
            // Ties are not interesting to this study
            delete r1, r2;
            continue;
        }

        delete r1, r2;
    }

    double rockPerc = ((double)rock / (double)total) * 100;
    double paperPerc = ((double)paper / (double)total) * 100;
    double scissorPerc = ((double)scissor / (double)total) * 100;

    cout.precision(5);
    cout << fixed;

    cout << setw(9) << "Rock: "    << rockPerc    << "%" << endl;
    cout << setw(9) << "Paper: "   << paperPerc   << "%" << endl;
    cout << setw(9) << "Scissor: " << scissorPerc << "%" << endl;

    // Press enter to exit
    cin.get();

    return 0;
}