GameDie.cpp

// Copyright 2022 kbuffardi
#include "GameDie.h"
#include <vector>
#include <cstdlib>
#include <ctime>

// class constructor that seeds the random number generator
GameDie::GameDie() {
    srand(time(NULL));
    roll_counter.resize(FACES);

    for (int i = 0; i < FACES; i++ )
      roll_counter[i] = 0;
}

// overloaded constructor
GameDie::GameDie(unsigned int num) {
    srand(time(NULL));
    if ( num == 0 ) {
        roll_counter.resize(FACES);
    } else {
        roll_counter.resize(num);
    }
    for (int i = 0; i < FACES; i++) {
        roll_counter[i] = 0;
    }
}

// generate a random number between 1-n where n is the counter size
// (inclusive) and return it
int GameDie::roll() {
    int roll = rand_r() % roll_counter.size();
    roll_counter[roll]++;
    return roll + 1;
}

// return the count of how many times each face has been rolled, as a vector
// where each face's count is at index face-1 (i.e. Face 1 is at index 0)
vector <int> GameDie::get_distribution() {
    return roll_counter;
}