/*
	####  Twenty-One Simulator
	####
	####  Terry Smith, CMSC 201 0301,0302
	####  Created 09/20/98
	####
	####  This program plays a simplified version
	####  of Blackjack, with the following limitations:
	####
	####     -Face cards are represented as {1,10,11}
        ####     -No double down, no actual gambling  
        ####
	####  (1+rand()%11) is used to select a card value from 1-11
	####
*/

#include <stdio.h>
#include <stdlib.h>       /* Needed for rand() */

#define YES 1
#define NO  0             /* Constants for readability */

main()
{
   int  i,
        playerCard,
        dealerCard,        /* Hold card values */
        playerTotal,
	dealerTotal;       /* Hold totals per hand */
   int  playerLost;        /* Used as flag         */
   char reply;            /* Holds user input     */

   do
   {                      /* Begin Hand */
      playerTotal=0;
      dealerTotal=0;
      playerLost = NO;
      printf("\nTwenty One: Get Ready to Play\n\n");

      for(i=0;i<2;++i)   /* Deal first two cards */
      {
	 playerCard = (1+rand()%11);
	 printf("Your card is %d\n",playerCard);
	 playerTotal += playerCard;

	 dealerCard = (1+rand()%11);
	 dealerTotal += dealerCard;
      }
      printf("Your beginning hand is %d\n",playerTotal);

      do
      {                   /* Deal to Player */
         printf("(h)it or (s)tand? ");
	 scanf("%c",&reply);
         fflush(stdin);
	 if (reply == 'h')
	 {
	    playerCard = (1+rand()%11);
	    playerTotal += playerCard;
	    printf("Next card is a %d\n",playerCard);
	    printf("Your new total is %d\n",playerTotal);
	    if (playerTotal > 21)
	    {
	       playerLost = YES;
	    }
	 }
      }
      while( (reply != 's') && (playerLost == NO) );

      if(playerLost == NO)
      {                     /* Deal to Dealer */
         printf("Dealer starts with %d\n",dealerTotal);
	 while( (dealerTotal < playerTotal) && (dealerTotal < 21) )
	 {
	    dealerCard = (1+rand()%11);
	    dealerTotal += dealerCard;
	    printf("Dealer gets a %d\n",dealerCard);
	    printf("Dealer's total is %d\n",dealerTotal);
      	 }
	 if(dealerTotal>21)
	 {
	   printf("Dealer BUSTED!\n");
	 }
	 else
	 {
	    playerLost = YES;
	 }
      }
      
      if(playerLost == YES)        /* Find out who won */
      {
	 printf(" I'm Sorry, you LOSE!!!\n");
      }
      else
      {
	 printf(" You've WON!!!! \n");
      }

      printf(" Do you want to play again (y/n)? ");
      scanf("%c",&reply);
      fflush(stdin);
   }
   while(reply == 'y');
}