static int findCardToBuy(struct gameState *state) {
// randomly order cards to buy
int coins = countCoins(state);
int cards[NUM_CARDS_TO_BUY];
for (int i = 0; i < NUM_CARDS_TO_BUY; i++) {
// pick card to check
int card = randomCardToBuy();
bool tmp = hasCard(cards, i, card);
while (tmp) {
card = randomCardToBuy();
tmp = hasCard(cards, i, card);
}
cards[i] = card;
// check card
int cost = cardToBuyCost(card);
int supply = supplyCount(card, state);
if (supply > 0 && cost <= coins) {
// found card to buy
return card;
}
}
// didn't find any card to buy
return -1;
}
int getMinimalAmountOfCoins(int total){
int i;
for(i=0;i<=coins_count;i++){
coins_buffer[i] = countCoins(total-coins[i],total);
}
return findMinimumValue(coins_buffer)+1;
}
