Dice.cpp

[詳解]

#include "stdafx.h"
#include "Dice.h"

namespace Deeangband
{

    std::mt19937 Dice::mt;

    Dice::Dice(void)
    {
        this->Set(0, 0);
    }

    Dice::Dice(int num, int side)
    {
        this->Set(num, side);
    }

    Dice::‾Dice(void)
    {
    }

    void Dice::Set(int num, int side)
    {
        this->num = num;
        this->side = side;
    }

    void Dice::Initialize(void)
    {
        std::random_device rd;
        std::array<unsigned, 100> seeds;
        for(auto & s : seeds) s = rd();
        std::seed_seq seq(seeds.begin(), seeds.end());
        mt.seed(seq);
    }

    int Dice::GetNum(void)
    {
        return this->num;
    }

    int Dice::GetSide(void)
    {
        return this->side;
    }

    int Dice::Cast(void)
    {
        int i, n = 0;
        for(i = 0; i < this->num; i++) n += Dice::Rand1(this->side);
        return n;
    }

    int Dice::Cast(int num, int side)
    {
        int i, n = 0;
        for(i = 0; i < num; i++) n += Dice::Rand1(side);
        return n;
    };

    int Dice::MaxCast(void)
    {
        return this->num * this->side;
    }

    int Dice::MaxCast(int num, int side)
    {
        return num * side;
    };

    int Dice::Rand0(int max)
    {
        std::uniform_int_distribution<int> dist(0, max-1);
        return dist(mt);
    }

    int Dice::Rand1(int max)
    {
        return Dice::Rand0(max) + 1;
    }

    bool Dice::Saving(int diff)
    {
        std::normal_distribution<int> dist(0, 20);
        return (diff >= dist(mt));
    }

}