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black jack

Posted on 2000-03-01
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how to write a text mode black jack programe using standard C ?
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Question by:adrianmak
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by:ozo
ID: 2575426
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by:Wyn
ID: 2576890
All can offer:

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

const Size_Array = 52; //Amount of cards!

const char *Card_Name[] =
{
"Ace",
"Two",
"Three",
"Four",
"Five",
"Six",
"Seven",
"Eight",
"Nine",
"Ten",
"Jack",
"Queen",
"King"
}; //Const used for displaying card by name!

const char *Suite_Name[] =
{
"Hearts",
"Spades",
"Diamonds",
"Spades"
};

int Deck[Size_Array];
char Suite[Size_Array];
//Deck is global!

void swap(int &n1, int &n2)
{
int temp;
temp = n1;
n1 = n2;
n2 = temp;
}

void Shuffle_Array(int *array)
{
int ctr;
int n1,n2;
//Swaps random cards around 1000 times!
//Shuffle :)
for (ctr=0;ctr<1000;ctr++)
{
n1 = rand()%Size_Array;
n2 = rand()%Size_Array;
swap(array[n1],array[n2]);
}
}

void New_Game(void)
{
int ctr;
for (ctr=0;ctr<Size_Array;ctr++)
{
Deck[ctr]=ctr/4; //cards 0-12
Suite[ctr]=ctr%4; //suites 0-3
}
Shuffle_Array(Deck); //Shuffle deck.
}

void Show_Computer(char *hand, char many)
{
int ctr;
gotoxy(1,1);
//Goto first box on screen for printing!
cout << "Computer has one you can't see and:" << endl;
for (ctr=1;ctr<many;ctr++) //Start at 1 to miss first card!
cout << Card_Name[Deck[hand[ctr]]] << " of " << Suite_Name[Suite[hand[ctr]]] << endl;
}

void Show_Computer2(char *hand, char many, int total)
{
int ctr;
gotoxy(1,1);
cout << "Computer has:" << endl;
for (ctr=0;ctr<many;ctr++)
cout << Card_Name[Deck[hand[ctr]]] << " of " << Suite_Name[Suite[hand[ctr]]] << endl;
cout << endl << "Total " << total << endl;
}

void Show_Player(char *hand, char many, int total)
{
int ctr;
cout << "\n\n\n\n\n"; //\n = endl
cout << "You have:" << endl;
for (ctr=0;ctr<many;ctr++)
cout << Card_Name[Deck[hand[ctr]]] << " of " << Suite_Name[Suite[hand[ctr]]] << endl;
cout << endl << "Total " << total << endl;
}

void Comp_Won(void)
{
cout << "Computer wins!";
}

void Play_Won(void)
{
cout << "You won!";
}

void Nobody_Won(void)
{
cout << "Bust!";
}

int Get_Total(char *hand, char many)
{
int ctr;
int total=0;
int aces=0;
int temp;
for (ctr=0;ctr<many;ctr++)
{
temp = Deck[hand[ctr]]+1;
if (temp>10) temp=10; //Check for jack+... all =10
total+=temp;
if (Deck[hand[ctr]]==0)
{
aces++;
total+=10;
}
}
while (total>21 && aces>0)
{
total-=10;
aces--;
}
return total;
}

int main (void)
{
char P_Cards[7],C_Cards[7]; //Can't get more than 7 cards without busting!
int P_Amount, C_Amount;
int P_Total;
int C_Total;
int Loc_In_Deck;
char done=0;
char key;
srand ( time(NULL));
while (!done)
{
New_Game();
//Initialize cards again.

P_Cards[0]=0;
C_Cards[0]=1;
P_Cards[1]=2;
C_Cards[1]=3;
//Deal first four cards out.
P_Amount=2;
C_Amount=2;
//Player and computer have 2 cards each so far

Loc_In_Deck = 4; //4 cards dealt already!

clrscr(); //Clear the screen for displaying

//Get totals
C_Total = Get_Total(C_Cards,C_Amount);
P_Total = Get_Total(P_Cards,P_Amount);

Show_Computer(C_Cards,C_Amount);
Show_Player(P_Cards,P_Amount, P_Total);

if (C_Total!=21 && P_Total!=21)
{
while (P_Total<21)
{
cout << "\n\n\n(H)it or (S)tay?";
key = getch();
if (key=='h' || key=='H')
{
P_Cards[P_Amount]=Loc_In_Deck;
P_Amount++;
Loc_In_Deck++;
}
else
break;
//Get totals
C_Total = Get_Total(C_Cards,C_Amount);
P_Total = Get_Total(P_Cards,P_Amount);

clrscr();

Show_Computer(C_Cards,C_Amount);
Show_Player(P_Cards,P_Amount, P_Total);
}
while (C_Total<16 && P_Total<22)
{
C_Cards[C_Amount]=Loc_In_Deck;
C_Amount++;
Loc_In_Deck++;

//Get totals
C_Total = Get_Total(C_Cards,C_Amount);
P_Total = Get_Total(P_Cards,P_Amount);

clrscr();

Show_Computer2(C_Cards,C_Amount,C_Total);
Show_Player(P_Cards,P_Amount, P_Total);
cout << "\n\n\nComputer hits";
getch();
}
}
else
{
if (C_Total == 21 && P_Total<21) //Make sure not a tie
cout << "Computer has Black Jack!";
else if (C_Total == 21) //If C_total was 21 and P_Total was =21
cout << "You both got Black Jack!";
else
cout << "You got Black Jack!";
}
clrscr();
Show_Computer2(C_Cards,C_Amount,C_Total);
Show_Player(P_Cards,P_Amount, P_Total);
cout << "\n\n\n\n";
if (P_Total<22)
if (P_Total>C_Total)
Play_Won();
else if (C_Total<22)
Comp_Won();
else
Play_Won();
else
Comp_Won();
cout << " Play again?";
key=getch();
if (key=='n' || key=='N') done=1;
}
return 0;
}


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Author Comment

by:adrianmak
ID: 2578655
Wvn,

Do you try before ?
Becuase there is a compliation error.
I am using Visual C++ 6.0
0
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LVL 5

Expert Comment

by:Wyn
ID: 2579083
o.
Sorry,just FYI,I find this code and paste here.I havent try it.
I'v withdrawed .
0
 

Author Comment

by:adrianmak
ID: 2579309
wvn,

where did you find this code ? On the Internet ?
0
 
LVL 18

Expert Comment

by:deighton
ID: 2579372
The code is c++, needs porting downwards to c.  Alot of it is the // comment marker, but also some operations on arrays and cout
0
 
LVL 18

Accepted Solution

by:
deighton earned 20 total points
ID: 2579408
/*#include <iostream.h> */
                   #include <conio.h>
                   #include <stdlib.h>
                   #include <time.h>

               #define Size_Array  52  /*/Amount of cards!*/

                   const char *Card_Name[] =
                   {
                   "Ace",
                   "Two",
                   "Three",
                   "Four",
                   "Five",
                   "Six",
                   "Seven",
                   "Eight",
                   "Nine",
                   "Ten",
                   "Jack",
                   "Queen",
                   "King"
               }; /*Const used for displaying card by name!*/

                   const char *Suite_Name[] =
                   {
                   "Hearts",
                   "Spades",
                   "Diamonds",
                   "Spades"
                   };

                   int Deck[Size_Array];
                   char Suite[Size_Array];
               /*Deck is global!*/

               void swap(int *n1, int *n2)
                   {
                   int temp;
               temp = *n1;
               *n1 = *n2;
               *n2 = temp;
                   }

                   void Shuffle_Array(int *array)
                   {
                   int ctr;
                   int n1,n2;
               /*Swaps random cards around 1000 times!*/
               /*Shuffle :) */
                   for (ctr=0;ctr<1000;ctr++)
                   {
                   n1 = rand()%Size_Array;
                   n2 = rand()%Size_Array;
               swap(&array[n1],&array[n2]);
                   }
                   }

                   void New_Game(void)
                   {
                   int ctr;
                   for (ctr=0;ctr<Size_Array;ctr++)
                   {
               Deck[ctr]=ctr/4; /*cards 0-12*/
               Suite[ctr]=ctr%4; /*suites 0-3*/
                   }
               Shuffle_Array(Deck); /*Shuffle deck.*/
                   }

                   void Show_Computer(char *hand, char many)
                   {
                   int ctr;
                   gotoxy(1,1);
               /*Goto first box on screen for printing!*/
               puts("Computer has one you can't see and:");
               for (ctr=1;ctr<many;ctr++) /*Start at 1 to miss first card!*/
               printf("%s%s%s\n",Card_Name[Deck[hand[ctr]]]," of ",Suite_Name[Suite[hand[ctr]]]);
                   }

                   void Show_Computer2(char *hand, char many, int total)
                   {
                   int ctr;
                   gotoxy(1,1);
               puts("Computer has:");
                   for (ctr=0;ctr<many;ctr++)
               printf("%s%s%s\n",Card_Name[Deck[hand[ctr]]]," of " ,Suite_Name[Suite[hand[ctr]]]);
               printf("\nTotal %i\n",total);
                   }

                   void Show_Player(char *hand, char many, int total)
                   {
                   int ctr;
               printf("\n\n\n\n\n");
               puts("You have:");
                   for (ctr=0;ctr<many;ctr++)
               printf("%s of %s\n",Card_Name[Deck[hand[ctr]]],Suite_Name[Suite[hand[ctr]]]);
               printf("\nTotal %i\n",total);
                   }

                   void Comp_Won(void)
                   {
               puts("Computer wins!");
                   }

                   void Play_Won(void)
                   {
               puts("You won!");
                   }

                   void Nobody_Won(void)
                   {
               puts("Bust!");
                   }

                   int Get_Total(char *hand, char many)
                   {
                   int ctr;
                   int total=0;
                   int aces=0;
                   int temp;
                   for (ctr=0;ctr<many;ctr++)
                   {
                   temp = Deck[hand[ctr]]+1;
               if (temp>10) temp=10; /*Check for jack+... all =10*/
                   total+=temp;
                   if (Deck[hand[ctr]]==0)
                   {
                   aces++;
                   total+=10;
                   }
                   }
                   while (total>21 && aces>0)
                   {
                   total-=10;
                   aces--;
                   }
                   return total;
                   }

                   int main (void)
                   {
               char P_Cards[7],C_Cards[7]; /*Can't get more than 7 cards without busting!*/
                   int P_Amount, C_Amount;
                   int P_Total;
                   int C_Total;
                   int Loc_In_Deck;
                   char done=0;
                   char key;
                   srand ( time(NULL));
                   while (!done)
                   {
                   New_Game();
               /*Initialize cards again.*/

                   P_Cards[0]=0;
                   C_Cards[0]=1;
                   P_Cards[1]=2;
                   C_Cards[1]=3;
               /*Deal first four cards out.*/
                   P_Amount=2;
                   C_Amount=2;
               /*Player and computer have 2 cards each so far*/

               Loc_In_Deck = 4; /*4 cards dealt already!*/

               clrscr(); /*Clear the screen for displaying*/

               /*Get totals*/
                   C_Total = Get_Total(C_Cards,C_Amount);
                   P_Total = Get_Total(P_Cards,P_Amount);

                   Show_Computer(C_Cards,C_Amount);
                   Show_Player(P_Cards,P_Amount, P_Total);

                   if (C_Total!=21 && P_Total!=21)
                   {
                   while (P_Total<21)
                   {
               printf("\n\n\n(H)it or (S)tay?");
                   key = getch();
                   if (key=='h' || key=='H')
                   {
                   P_Cards[P_Amount]=Loc_In_Deck;
                   P_Amount++;
                   Loc_In_Deck++;
                   }
                   else
                   break;
               /*Get totals*/
                   C_Total = Get_Total(C_Cards,C_Amount);
                   P_Total = Get_Total(P_Cards,P_Amount);

                   clrscr();

                   Show_Computer(C_Cards,C_Amount);
                   Show_Player(P_Cards,P_Amount, P_Total);
                   }
                   while (C_Total<16 && P_Total<22)
                   {
                   C_Cards[C_Amount]=Loc_In_Deck;
                   C_Amount++;
                   Loc_In_Deck++;

               /*Get totals*/
                   C_Total = Get_Total(C_Cards,C_Amount);
                   P_Total = Get_Total(P_Cards,P_Amount);

                   clrscr();

                   Show_Computer2(C_Cards,C_Amount,C_Total);
                   Show_Player(P_Cards,P_Amount, P_Total);
               printf("\n\n\nComputer hits");
                   getch();
                   }
                   }
                   else
                   {
               if (C_Total == 21 && P_Total<21) /*Make sure not a tie*/
               puts("Computer has Black Jack!");
               else if (C_Total == 21) /*If C_total was 21 and P_Total was =21*/
               printf("You both got Black Jack!");
                   else
               printf("You got Black Jack!");
                   }
                   clrscr();
                   Show_Computer2(C_Cards,C_Amount,C_Total);
               Show_Player(P_Cards,P_Amount, P_Total);
               /*LOL*/
               printf("\n\n\n\n");
                   if (P_Total<22)
                   if (P_Total>C_Total)
                   Play_Won();
                   else if (C_Total<22)
                   Comp_Won();
                   else
                   Play_Won();
                   else
                   Comp_Won();
               printf(" Play again?");
                   key=getch();
                   if (key=='n' || key=='N') done=1;
                   }
                   return 0;
                   } 
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Expert Comment

by:deighton
ID: 2579554
Needless to say you don't need the square at the end.
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Expert Comment

by:Wyn
ID: 2580560
Aint the same ?

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LVL 18

Expert Comment

by:deighton
ID: 2586835
I fixed the  code and ran it under Turbo C successfully.  There were some errors.
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