/**
* Once any non-basic lands are added, add basic lands until the deck is filled.
*
* @param landsNeeded how many remaining lands are needed.
* @param percentage the percentage needed for each color in the final deck.
* @param count how many of each color can be produced by non-basic lands.
* @param basicLands list of information about basic lands from the database.
*/
private static void addBasicLands(
int landsNeeded,
Map<String, Double> percentage,
Map<String, Integer> count,
Map<String, List<CardInfo>> basicLands) {
int colorTotal = 0;
ColoredManaSymbol colorToAdd = null;
// Add up the totals for all colors, to keep track of the percentage a color is.
for (Map.Entry<String, Integer> c : count.entrySet()) {
colorTotal += c.getValue();
}
// Keep adding basic lands until we fill the deck
while (landsNeeded > 0) {
double minPercentage = Integer.MIN_VALUE;
for (ColoredManaSymbol color : ColoredManaSymbol.values()) {
// What percentage of this color is requested
double neededPercentage = percentage.get(color.toString());
// If there is a 0% need for basic lands of this color, skip it
if (neededPercentage <= 0) {
continue;
}
int currentCount = count.get(color.toString());
double thisPercentage = 0.0;
// Calculate the percentage of lands so far that produce this color
if (currentCount > 0) thisPercentage = (currentCount / (double) colorTotal) * 100.0;
// Check if the color is the most "needed" (highest percentage) we have seen so far
if (neededPercentage - thisPercentage > minPercentage) {
// Put this color land forward to be added
colorToAdd = color;
minPercentage = (neededPercentage - thisPercentage);
}
}
if (colorToAdd != null) {
genPool.addCard(getBasicLand(colorToAdd, basicLands));
count.put(colorToAdd.toString(), count.get(colorToAdd.toString()) + 1);
colorTotal++;
landsNeeded--;
}
}
}
/**
* 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);
}
/**
* Generates all spells for the deck. Each card is retrieved from the database and checked against
* the converted mana cost (CMC) needed for the current card pool. If a card's CMC matches the CMC
* range required by the pool, it is added to the deck. This ensures that the majority of cards
* fit a fixed mana curve for the deck, and it is playable. Creatures and non-creatures are
* retrieved separately to ensure the deck contains a reasonable mix of both.
*
* @param criteria the criteria to search for in the database.
* @param spellCount the number of spells that match the criteria needed in the deck.
*/
private static void generateSpells(CardCriteria criteria, int spellCount) {
List<CardInfo> cardPool = CardRepository.instance.findCards(criteria);
int retrievedCount = cardPool.size();
List<DeckGeneratorCMC> deckCMCs = genPool.getCMCsForSpellCount(spellCount);
Random random = new Random();
int count = 0;
int reservesAdded = 0;
if (retrievedCount > 0 && retrievedCount >= spellCount) {
int tries = 0;
while (count < spellCount) {
Card card = cardPool.get(random.nextInt(retrievedCount)).getMockCard();
if (genPool.isValidSpellCard(card)) {
int cardCMC = card.getManaCost().convertedManaCost();
for (DeckGeneratorCMC deckCMC : deckCMCs) {
if (cardCMC >= deckCMC.min && cardCMC <= deckCMC.max) {
int currentAmount = deckCMC.getAmount();
if (currentAmount > 0) {
deckCMC.setAmount(currentAmount - 1);
genPool.addCard(card.copy());
count++;
}
} else {
if (reservesAdded < genPool.getDeckSize() / 2) {
genPool.tryAddReserve(card, cardCMC);
reservesAdded++;
}
}
}
}
tries++;
if (tries > MAX_TRIES) {
// Break here, we'll fill in random missing ones later
break;
}
}
} else {
throw new IllegalStateException("Not enough cards to generate deck.");
}
}