#include <stdio.h>
#include <time.h>
#include "cards.h"
#include "blackjack.h"


/* this function seeds the random number generator */
/***   call this function with 0 at the beginning of main ***/
void init_rand (int seed)

{
   if (seed == 0) {

      struct tm *tm_ptr;
      time_t clock;

      clock = time (NULL);
      tm_ptr = gmtime (&clock);
      srand (tm_ptr -> tm_sec);
   }

   else

      srand (seed);
}


/* this function allows the user to enter a value to seed the
   random number generator */
void set_seed ()

{
   int val;

   printf ("\nPlease enter seed value (0..32000): ");
   scanf ("%d", &val);

   init_rand (val);
}

      
/* this function reads in a loaded deck from an ASCII file */
void read_deck (DECK_T *deck)

{
   FILE *fp;
   char name [30];
   int i;

   printf ("\nPlease enter file name with deck data: ");
   scanf ("%s", name);

   if ((fp = fopen (name, "r")) == NULL) {

      printf ("invalid file namen");
      return;
   }

   for (i = 0; i < NUM_CARDS; i++) {

      fscanf (fp, "%d %c", &(deck -> cards [i].value), &(deck -> cards [i].suit));
   }
}


/*** define other functions, as listed in cards.h, here ***/

/*** you may also need some additional helper functions local to this source
     file -- they can be defined here also ***/