card.h

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//
//  CardLib - Card class
//
//  Freeware
//  Copyright J Brown 2001
//

#ifndef _CARD_INCLUDED
#define _CARD_INCLUDED

enum eSuit  { Clubs = 0, Diamonds = 1, Hearts = 2, Spades = 3 };
enum eValue { Ace = 1, Two = 2, Three = 3, Four = 4, Five = 5, Six = 6, Seven = 7, 
              Eight = 8, Nine = 9, Ten = 10, Jack = 11, Queen = 12, King = 13 };

inline int MAKE_CARD(int Value, int Suit)
{
    if(Value < 1)   Value = 1;
    if(Value == 14) Value = 1;
    if(Value >  13) Value = 13;

    if(Suit < 0)    Suit = 0;
    if(Suit > 3)    Suit = 3;

    return ((Value - 1) * 4 + Suit);
}

class Card
{
    friend class CardStack;

public:

    Card() 
    { 
        nValue = 0;     //ace of spades by default
        fFaceUp = true; 
    }
    
    Card(int value, int suit)   //specify a face value [1-13] and suit [0-3]
    { 
        nValue = MAKE_CARD(value, suit);
        fFaceUp = true; 
    }
    
    Card(int index)             //specify a 0-51 index
    { 
        if(index < 0)  index = 0;
        if(index > 51) index = 51;

        nValue = index; 
        fFaceUp = true;
    }
    
    int Suit() const
    { 
        return (nValue % 4); 
    }

    int LoVal() const
    { 
        return (nValue / 4) + 1; 
    }

    int HiVal() const
    { 
        return ((nValue < 4) ? 14 : (nValue / 4) + 1); 
    }

    int Idx() const //unique value (0-51 etc)
    {
        return nValue;
    }

    bool FaceUp() const
    {
        return fFaceUp;
    }
    
    bool FaceDown() const
    {
        return !fFaceUp;
    }

    void SetFaceUp(bool fTrue)
    {
        fFaceUp = fTrue;
    }

    bool IsBlack() const
    {
        return Suit() == 0 || Suit() == 3;
    }

    bool IsRed() const
    {
        return !IsBlack();
    }

private:

    int  nValue;
    bool fFaceUp;
};

#endif