/**
* Generates all the lands for the deck. Generates non-basic if selected by the user and if the
* deck isn't monocolored. Will fetch non-basic lands if required and then fill up the remaining
* space with basic lands. Basic lands are adjusted according to the mana symbols seen in the
* cards used in this deck. Usually the lands will be well balanced relative to the color of
* cards.
*
* @param criteria the criteria of the lands to search for in the database.
* @param landsCount the amount of lands required for this deck.
* @param basicLands information about the basic lands from the sets used.
*/
private static void generateLands(
CardCriteria criteria, int landsCount, Map<String, List<CardInfo>> basicLands) {
int tries = 0;
int countNonBasic = 0;
// Store the nonbasic lands (if any) we'll add
List<Card> deckLands = new ArrayList<>();
// Calculates the percentage of colored mana symbols over all spells in the deck
Map<String, Double> percentage = genPool.calculateSpellColorPercentages();
// Only dual/tri color lands are generated for now, and not non-basic lands that only produce
// colorless mana.
if (!genPool.isMonoColoredDeck() && genDialog.useNonBasicLand()) {
List<Card> landCards = genPool.filterLands(CardRepository.instance.findCards(criteria));
int allCount = landCards.size();
Random random = new Random();
if (allCount > 0) {
while (countNonBasic < landsCount / 2) {
Card card = landCards.get(random.nextInt(allCount));
if (genPool.isValidLandCard(card)) {
Card addedCard = card.copy();
deckLands.add(addedCard);
genPool.addCard(addedCard);
countNonBasic++;
}
tries++;
// to avoid infinite loop
if (tries > MAX_TRIES) {
// Not a problem, just use what we have
break;
}
}
}
}
// Calculate the amount of colored mana already can be produced by the non-basic lands
Map<String, Integer> count = genPool.countManaProduced(deckLands);
// Fill up the rest of the land quota with basic lands adjusted to fit the deck's mana costs
addBasicLands(landsCount - countNonBasic, percentage, count, basicLands);
}
