Roulette progression strategy simulator

roulette.cpp

#include <random>
#include <iostream>

#define START_CREDITS 1000
#define PROGRESSION_RATION 2
#define MINIMAL_BET 0.5

bool is_odd(int result)
{
    return result % 2 == 1;
}

int main()
{
    std::random_device rd;
    std::mt19937 gen(rd());
    std::uniform_int_distribution<> dis(0, 36);
    
    float credits = START_CREDITS;
    float bet = MINIMAL_BET;
    int bet_count = 0;
    int result = 0;
    int win_count = 0;
    
    while (credits > 0)
    {
        bet_count++;
        win_count += result = dis(gen) % 2;
        
        if (result == 1)
        {
            credits += bet;
            bet = MINIMAL_BET;
        }
        else
        {
            credits -= bet;
            bet *= PROGRESSION_RATION;
            
            if (bet > credits)
            {
                bet = credits;
            }
        }
    
        std::cout << "\r" << "Credits :" << credits << ", round: " << bet_count << ", result: " << result % 2 << ", winning ration: " << (float) win_count / bet_count;
        
    }
}