程式設計作業--BlackJack

[screaming (無悔......)]

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

class BJPlayer
{
    int ace;
    int score;
    float risk;
 public:
    int needCard(float r) {return (r > risk);}  //r為拿到好牌的機率
    void getCard(int);
    int point();
    void setRisk(float r) {risk = r;}
    void reset() {ace = score = 0;}
};

int BJPlayer::point()
{
    //若ace == 0，則傳回目前的score值;
    //若score+10會超過21點，則也傳回score值;
    if (ace == 0 || score+10 > 21)
        return score;
    else
        return score+10;
};

void BJPlayer::getCard(int n)
{
if (n > 10)
        score += 10;
    else
        score += n;
};

class deck
{       int c[52];
        int count;
  public:
        // deck() {srand(time(NULL)); count=52;}
        void shuffle();
        int drawcard();
        float stat(int);
};

void deck::shuffle()
{
        for(int i=0; i<52; i++)
                c[i] = 0;
        count = 52;
}

inline int randno() {return rand() % 52;}

int deck::drawcard()
{
        int k;

        if (!count) return 0;

        for (k = randno(); c[k];)
                k = randno();
        c[k] = 1;
        count--;
        return (k%13 + 1);
}

// a simple-minded deck stat function
// = ratio of the number of cards with values less than or equal to n
//           and the number of cards left, i.e., count

float deck::stat(int n)
{
        int v, qual = 0;

        for (int k = 0; k < 52; k++)
                if (!c[k]) {
                        v = k%13 > 10 ? 10 : k%13;
                        qual += n >= v;
                }
        return (float) qual / count;
}

//在此放入兩個類別carddeck、BJPlayer的定義

void main()
{
    BJPlayer alex,bob;
    deck d;
    int a,b;

    srand(time(0));     // randomize

    d.shuffle();
    alex.reset();
    bob.reset();
    alex.setRisk(0.8);
    bob.setRisk(0.5);
    alex.getCard(d.drawcard());
    bob.getCard(d.drawcard());
    alex.getCard(d.drawcard());
    bob.getCard(d.drawcard());
    if (alex.point() == 21)
        cout << "Alex is Blackjack. \n";
    if (bob.point() == 21)
        cout << "Bob is Blackjack. \n";
    if (alex.needCard(d.stat(21 - alex.point())))
        alex.getCard(d.drawcard());
    if (bob.needCard(d.stat(21 - bob.point())))
        bob.getCard(d.drawcard());
    a = alex.point();
    b = bob.point();
    cout << "Alex's point is " << a << '\n'
         << "Bob's point is " << b << endl;
    if (a > 21) a = 0;
    if (b > 21) b = 0;
    if (a > b)
        cout << "Alex wins! \n";
    else if (b > a)
        cout << "Bob wins! \n";
    else
        cout << "No winner. \n";
}


--

 ......遭遇史上最大危機!!

 ....終極版情瘤桿菌蔓延......之卷~~

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