#include "card_stack.h"
#include <assert.h>
#include <stdlib.h>

uint32_t card_stack_get_points(const card_stack_t *cs)
{
	assert(cs != NULL);

	uint32_t points = 0;

	for(uint8_t i = 0; i < MAX_CARD_STACK_SIZE; i++)
	{
		if(cs->cards[i] > 0)
			points += card_get_points(cs->cards[i]);
	}

	return points;
}

const card card_stack_upper_card(const card_stack_t *cs)
{
	assert(cs != NULL);

	for(int i=0; i<MAX_CARD_STACK_SIZE; i++)
	{
		card cur = cs->cards[MAX_CARD_STACK_SIZE-1-i];
		if(cur != 0)
			return cur;
	}

	return 0;
}

void card_stack_clear(card_stack_t *cs, const card new_card)
{
	assert(cs != NULL);

	for(int i=0; i<MAX_CARD_STACK_SIZE; i++)
		cs->cards[i] = 0;

	cs->cards[0] = new_card;
}