#include <stdio.h>
#include <stdlib.h>
#include <time.h>
#include <stdbool.h>

struct Simulation {
    double betsize;
    double STARTING_BANKROLL;
    double bankroll;
    int attempts;
};

int roll() {
    return (random() % 7) + 1;
}

double handle(int player, int house) {
    int diff = house - player;
    if (diff >= 1) {return 0;}
    else if (diff == -6) {return 2;}
    else if (diff == 0) {return 0;}
    else {return 1.5;}
}

bool calculate(struct Simulation* simulation) {
    if (simulation->bankroll >= simulation->betsize) {
        simulation->bankroll -= simulation->betsize;
        int player_roll = roll();
        int house_roll = roll();
        double modifier = handle(player_roll, house_roll);
        simulation->bankroll += (modifier * simulation->betsize);
        simulation->attempts++;
        return false;
    } else {return true;}
}

void run(struct Simulation* simulation, int attempts) {
    for (int i = 0; i < attempts; i++) {
        bool bankrupt = calculate(simulation);
        if (bankrupt) {
            break;
        }
    }
}

int main() {
    srandom(time(NULL));
    struct Simulation new_simulation;
    new_simulation.betsize = 20;
    new_simulation.STARTING_BANKROLL = 5000000000;
    new_simulation.bankroll = new_simulation.STARTING_BANKROLL;
    new_simulation.attempts = 0;
    run(&new_simulation, 2147483647);
    printf("Starting Bankroll: %f\n", new_simulation.STARTING_BANKROLL);
    printf("Current Bankroll: %f\n", new_simulation.bankroll);
    printf("Finished after %d attempts and with a betsize of: %f\n", new_simulation.attempts, new_simulation.betsize);
    return 0;
}