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

#define CARD_MAX 51
#define len(x) sizeof(x)/sizeof(x[0])	

void print_deck (int *deckOfCards);
void shuffel (int *array);

int main (int argc, char *argv[])
{
	int i;
	int deckOfCards[CARD_MAX];

	time_t t;
	srand((unsigned) time(&t));


	/* Clubs > Diamonds > Hearts > Spades
	 * 0-12			13-25			26-38			39-51
	 */
	
	for (i = 0; i<CARD_MAX; i++){
		deckOfCards[i]=i;
	}

	shuffel(deckOfCards);

	print_deck(deckOfCards);

	return 0;
}

// Add a starting position. I can have a variable that simply means "continue drawing/printing cards from here"
void print_deck(int *deckOfCards){
	int i;

	for (i = 0; i<=CARD_MAX; i++){
		printf("%d\n", deckOfCards[i]);
	}
}

void shuffel (int *array){

	int i, rn, a , tmp;

	rn = rand();
	printf("%d\n", rn);

	for (i=CARD_MAX; i >= CARD_MAX/CARD_MAX ;i--){
		
		if (i != 0){
			a = rn % i;
			tmp = array[a];
			array[a] = array[i];
			array[i] = tmp;
		}
	}
}