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/*****************************************************************************
* ___ __ __ ___ _ __ *
* / _ \\ \/ // _ \ '_ \ *
* | (_) |> <| __/ | | | *
* \___//_/\_\\___|_| |_| *
* *
* The card game *
* *
* Copyright (C) 2011, Reiner Herrmann <reiner@reiner-h.de> *
* Mario Kilies <MarioKilies@GMX.net> *
* *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation; either version 3 of the License, or *
* (at your option) any later version. *
* *
* This program is distributed in the hope that it will be useful, *
* but WITHOUT ANY WARRANTY; without even the implied warranty of *
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
* GNU General Public License for more details. *
* *
* You should have received a copy of the GNU General Public License *
* along with this program. If not, see <http://www.gnu.org/licenses/>. *
* *
*****************************************************************************/
#include "hand.h"
#include <stdlib.h>
#include <assert.h>
#include "card.h"
/**
* Compares two hands; used for sorting them in hand_sort
*/
static int hand_comparator(const void *a, const void *b)
{
card c1 = *(card *)a;
card c2 = *(card *)b;
return c1 - c2;
}
/**
* Sord the cards in a hand
* @param[in,out] h Pointer to hand that should be sorted
*/
void hand_sort(hand_t *h)
{
assert(h != NULL);
qsort(h->cards, MAX_HAND_CARDS, sizeof(card), hand_comparator);
}
/**
* Removes a card from a hand by setting it to invalid value 0
* @param[in,out] h Hand to remove card from
* @param[in] card_index Index of card to remove
*/
void hand_remove_card(hand_t *h, const uint8_t card_index)
{
assert(h != NULL);
h->cards[card_index] = 0;
}
/**
* Count number of valid cards in hand
* @param[in] h Hand to count
* @return Number of valid cards in hand
*/
const uint8_t hand_count_cards(const hand_t* h)
{
uint8_t count = 0;
for(int i=0; i<MAX_HAND_CARDS; i++)
if(h->cards[i] != 0)
count++;
return count;
}
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