/**
* Returns a map of colored mana symbol to basic land cards of that color.
*
* @param setsToUse which sets to retrieve basic lands from.
* @return a map of color to basic lands.
*/
private static Map<String, List<CardInfo>> generateBasicLands(List<String> setsToUse) {
List<String> landSets = new LinkedList<>();
// decide from which sets basic lands are taken from
for (String setCode : setsToUse) {
ExpansionInfo expansionInfo = ExpansionRepository.instance.getSetByCode(setCode);
if (expansionInfo.hasBasicLands()) {
landSets.add(expansionInfo.getCode());
}
}
// if sets have no basic land, take land from block
if (landSets.isEmpty()) {
for (String setCode : setsToUse) {
ExpansionInfo expansionInfo = ExpansionRepository.instance.getSetByCode(setCode);
List<ExpansionInfo> blockSets =
ExpansionRepository.instance.getSetsFromBlock(expansionInfo.getBlockName());
for (ExpansionInfo blockSet : blockSets) {
if (blockSet.hasBasicLands()) {
landSets.add(blockSet.getCode());
}
}
}
}
// if still no set with lands found, take one by random
if (landSets.isEmpty()) {
// if sets have no basic lands and also it has no parent or parent has no lands get last set
// with lands
// select a set with basic lands by random
Random generator = new Random();
List<ExpansionInfo> basicLandSets =
ExpansionRepository.instance.getSetsWithBasicLandsByReleaseDate();
if (basicLandSets.size() > 0) {
landSets.add(basicLandSets.get(generator.nextInt(basicLandSets.size())).getCode());
}
}
if (landSets.isEmpty()) {
throw new IllegalArgumentException("No set with basic land was found");
}
CardCriteria criteria = new CardCriteria();
if (!landSets.isEmpty()) {
criteria.setCodes(landSets.toArray(new String[landSets.size()]));
}
Map<String, List<CardInfo>> basicLandMap = new HashMap<>();
for (ColoredManaSymbol c : ColoredManaSymbol.values()) {
String landName = DeckGeneratorPool.getBasicLandName(c.toString());
criteria.rarities(Rarity.LAND).name(landName);
List<CardInfo> cards = CardRepository.instance.findCards(criteria);
basicLandMap.put(landName, cards);
}
return basicLandMap;
}
/**
* 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.");
}
}
/**
* Generates all the cards to use in the deck. Adds creatures, non-creatures, lands (including
* non-basic). Fixes the deck, adjusting for size and color of the cards retrieved.
*
* @param deckSize how big the deck is to generate.
* @param allowedColors which colors are allowed in the deck.
* @param setsToUse which sets to use to retrieve cards for this deck.
* @return the final deck to use.
*/
private static Deck generateDeck(
int deckSize, List<ColoredManaSymbol> allowedColors, List<String> setsToUse) {
genPool = new DeckGeneratorPool(deckSize, allowedColors, genDialog.isSingleton());
final String[] sets = setsToUse.toArray(new String[setsToUse.size()]);
// Creatures
final CardCriteria creatureCriteria = new CardCriteria();
creatureCriteria.setCodes(sets);
creatureCriteria.notTypes(CardType.LAND);
creatureCriteria.types(CardType.CREATURE);
if (!(genDialog.useArtifacts())) creatureCriteria.notTypes(CardType.ARTIFACT);
// Non-creatures (sorcery, instant, enchantment, artifact etc.)
final CardCriteria nonCreatureCriteria = new CardCriteria();
nonCreatureCriteria.setCodes(sets);
nonCreatureCriteria.notTypes(CardType.LAND);
nonCreatureCriteria.notTypes(CardType.CREATURE);
if (!(genDialog.useArtifacts())) nonCreatureCriteria.notTypes(CardType.ARTIFACT);
// Non-basic land
final CardCriteria nonBasicLandCriteria = new CardCriteria();
nonBasicLandCriteria.setCodes(sets);
nonBasicLandCriteria.types(CardType.LAND);
nonBasicLandCriteria.notSupertypes("Basic");
// Generate basic land cards
Map<String, List<CardInfo>> basicLands = generateBasicLands(setsToUse);
generateSpells(creatureCriteria, genPool.getCreatureCount());
generateSpells(nonCreatureCriteria, genPool.getNonCreatureCount());
generateLands(nonBasicLandCriteria, genPool.getLandCount(), basicLands);
// Reconstructs the final deck and adjusts for Math rounding and/or missing cards
return genPool.getDeck();
}
/**
* 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);
}
/**
* Return a random basic land of the chosen color.
*
* @param color the color the basic land should produce.
* @param basicLands list of information about basic lands from the database.
* @return a single basic land that produces the color needed.
*/
private static Card getBasicLand(
ColoredManaSymbol color, Map<String, List<CardInfo>> basicLands) {
Random random = new Random();
String landName = DeckGeneratorPool.getBasicLandName(color.toString());
return basicLands.get(landName).get(random.nextInt(basicLands.size() - 1)).getMockCard().copy();
}