C++分享笔记：扑克牌的洗牌发牌游戏设计

　　笔者在大学二年级期间，做过的一次C++程序设计：扑克牌的洗牌发牌游戏。具体内容是：除去大王和小王，将52张扑克牌洗牌，并发出5张牌。然后判断这5张牌中有几张相同大小的牌，是否是一条链，有几个同花等。

　　笔者在学习他人设计的基础上，完成了自己的程序设计。这里将源程序分享给大家。

[1] 文件“card.h”

#ifndef CARD_H
#define CARD_H
#include<string>
using namespace std;

class Card
{
public:
    static const int totalFaces=13;
    static const int totalSuits=4;

    Card(int,int);
    int getFace();
    int getSuit();
    string toString();

private:
    int face,suit;
    static const string faceNames[totalFaces];
    static const string suitNames[totalSuits];

};
#endif // CARD_H

[2] 文件“card.cpp”

#include"card.h"

Card::Card(int faceNumber,int suitNumber)
{
    face=faceNumber;
    suit=suitNumber;
}

string Card::toString()
{
    return faceNames[face]+" of "+suitNames[suit];
}

int Card::getFace() {return face;}
int Card::getSuit() {return suit;}

const string Card::faceNames[totalFaces]=
{"A","2","3","4","5","6","7","8","9","10","J","Q","K"};

const string Card::suitNames[totalSuits]=
{"heart","diamond","club","spade"};

[3] 文件“deckofcards.h”

#ifndef DECKOFCARDS_H
#define DECKOFCARDS_H
#include<vector>
#include"card.h"
using namespace std;

class DeckOfCards
{
public:
    static const int fiveCards=5;
    static const int allCards=52;
    DeckOfCards();
    void shuffle();
    Card dealCard(int);

    void sortCards();
    int duiziCards(int* sortFaces);
    //bool moreCards();

private:
    vector<Card> deck;
    int currentCard;

};
#endif // DECKOFCARDS_H

[4] 文件“deckofcards.cpp”

#include"deckofcards.h"
#include<cstdlib>
#include<ctime>

DeckOfCards::DeckOfCards()
{
    //currentCard=0;

    for(int i=0;i<allCards;i++)
    {
        Card card(i%Card::totalFaces,i/Card::totalFaces);
        deck.push_back(card);
    }
}

void DeckOfCards::shuffle()
{
    srand(time(0));

    int swapRandom[allCards];

    for(int i=0;i<allCards;i++)
        swapRandom[i]=int(rand())%allCards;

    for(int i=0;i<allCards;i++)
    {
        Card swapCard(0,0);
        swapCard=deck[i];
        deck[i]=deck[swapRandom[i]];
        deck[swapRandom[i]]=swapCard;
    }

}

Card DeckOfCards::dealCard(int how_many)
{
    for(int i=0;i<how_many;i++)
    {
        cout <<deck[i].toString() <<endl;
        if((i+1)%13==0) cout <<endl;
    }
}

void DeckOfCards::sortCards()
{
    int sortFaces[fiveCards];
    int sortSuits[fiveCards];
    for(int i=0;i<fiveCards;i++)
    {
        sortFaces[i]=deck[i].getFace();
        sortSuits[i]=deck[i].getSuit();
    }

    for(int i=fiveCards-1;i>=0;i--)
        for(int j=0;j<=i-1;j++)
            if(sortFaces[j]>sortFaces[j+1])
            {
                int t;
                t=sortFaces[j];
                sortFaces[j]=sortFaces[j+1];
                sortFaces[j+1]=t;
            }

    if((sortFaces[0]==sortFaces[1]&&sortFaces[0]==sortFaces[2]&&sortFaces[0]==sortFaces[3])||
      (sortFaces[1]==sortFaces[2]&&sortFaces[1]==sortFaces[3]&&sortFaces[1]==sortFaces[4]))
        cout <<"There are 4 same cards." <<endl;

    else if((sortFaces[0]==sortFaces[1]&&sortFaces[0]==sortFaces[2])||
           (sortFaces[1]==sortFaces[2]&&sortFaces[1]==sortFaces[3])||
           (sortFaces[2]==sortFaces[3]&&sortFaces[2]==sortFaces[4]))
        cout <<"There are 3 same cards." <<endl;

    else if(int i=duiziCards(sortFaces))
        cout <<"There are " <<i <<" pairs." <<endl;

    else
        cout <<"There is no same cards." <<endl;

    if(sortFaces[0]+1==sortFaces[1]&&sortFaces[1]+1==sortFaces[2]&&
       sortFaces[2]+1==sortFaces[3]&&sortFaces[3]+1==sortFaces[4])
        cout <<"The five cards is a straight." <<endl;
    else
        cout <<"The five cards is not a straight." <<endl;

    if(sortSuits[0]==sortSuits[1]&&sortSuits[0]==sortSuits[2]&&
       sortSuits[0]==sortSuits[3]&&sortSuits[0]==sortSuits[4])
        cout <<"The five cards have same flower." <<endl;
    else
        cout <<"The five cards have different flower." <<endl;

}

int DeckOfCards::duiziCards(int* sortFaces)
{
    int duiziNum=0;

    for(int i=0;i<fiveCards-1;i++)
        if(sortFaces[i]==sortFaces[i+1]) duiziNum++;

    return duiziNum;
}

[5] main函数文件“main_FiveCards.cpp”

#include<iostream>
#include"card.cpp"
#include"deckofcards.cpp"
using namespace std;

int main()
{
    DeckOfCards aDeck;

    cout <<"Deal all cards before shuffle." <<endl;
    aDeck.dealCard(aDeck.allCards);

    aDeck.shuffle();

    cout <<"Deal five cards after shuffle." <<endl;
    aDeck.dealCard(aDeck.fiveCards);

    cout <<"
The result after sorting." <<endl;
    aDeck.sortCards();

    return 0;
}

　　将5个文件放在同一目录下，对文件“main_FiveCards.cpp”编译运行即可。以下是在CodeBlocks中的运行结果：

　　

注：如有疑问或者高见，欢迎各位读者与笔者交流，以期共同学习进步。