甲板洗牌导致两手相等

我有一个玩家类，有两个向量，分别是牌组中的牌和玩家手中的牌。我从 xml 文件加载卡片，我已经用加载整数来替换所有这些卡以在此处发布。出于某种原因，即使每个玩家都是一个单独的对象，并且他们各自洗牌组，他们都得到相同的手牌。每次运行它时，您都会获得不同的手牌，但它们总是有相同的手牌。我不知道为什么。代码需要 C++11。

#include <iostream>
#include <vector>
#include <random>
#include <time.h>
// **Player.hpp**
class Player
{
public:
    Player(std::string name);
    std::string name;
    std::vector<int> hand;
    std::vector<int> deck;
    void draw(int numberOfCards);
    void loadDeck();
    void shuffleDeck();
};
// **Player.cpp**
Player::Player(std::string playerName)
{
    name = playerName;
    loadDeck();
    shuffleDeck();
}
void Player::draw(int numberOfCards)
{
    for(int i = 0; i < numberOfCards; i++)
    {
        if(!deck.empty() && hand.size() < 10)
        {
            hand.push_back(deck.front());
            deck.erase(deck.begin());
        }
    }
}
void Player::loadDeck()
{
    for(int i = 1; i < 30; i++)
    {
        deck.push_back(i);
    }
}
void Player::shuffleDeck()
{
    std::srand(time(0));
    for(int i = 1; i != 15; i++)
    {
        std::srand(static_cast<double>(std::rand()) / RAND_MAX * 4294967295);
        for(int i = 1; i < deck.size(); i++)
        {
            std::swap(deck[i], deck[static_cast<double>(std::rand()) / RAND_MAX * i]);
        }
    }
}
// **Main.cpp**
int main()
{
    Player* player1 = new Player("Player1");
    Player* player2 = new Player("Player2");
    player1->draw(7);
    player2->draw(7);
    std::vector<int>::iterator itr;
    std::cout << player1->name << "'s Hand:n";
    for(itr = player1->hand.begin(); itr != player1->hand.end(); itr++)
    {
        std::cout << (*itr) << ", ";
    }
    std::cout << "nnn" << player2->name << "'s Hand:n";
    for(itr = player2->hand.begin(); itr != player2->hand.end(); itr++)
    {
        std::cout << (*itr) << ", ";
    }
    return 0;
}