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Only return subset of potential attackers based on current declaration

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This commit is contained in:
tool4EvEr
2023-07-04 23:26:40 +02:00
parent ee65cb64e6
commit ddecc4226d
1 changed files with 33 additions and 23 deletions
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56
forge-ai/src/main/java/forge/ai/AiAttackController.java
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@@ -357,35 +357,41 @@ public class AiAttackController {
}
// this checks to make sure that the computer player doesn't lose when the human player attacks
public final List<Card> notNeededAsBlockers(final List<Card> attackers) {
public final List<Card> notNeededAsBlockers(final List<Card> currentAttackers, final List<Card> potentialAttackers) {
//check for time walks
if (ai.getGame().getPhaseHandler().getNextTurn().equals(ai)) {
return attackers;
return potentialAttackers;
}
// no need to block (already holding mana to cast fog next turn)
if (!AiCardMemory.isMemorySetEmpty(ai, AiCardMemory.MemorySet.CHOSEN_FOG_EFFECT)) {
// Don't send the card that'll do the fog effect to attack, it's unsafe!
List<Card> toRemove = Lists.newArrayList();
for (Card c : attackers) {
for (Card c : potentialAttackers) {
if (AiCardMemory.isRememberedCard(ai, c, AiCardMemory.MemorySet.CHOSEN_FOG_EFFECT)) {
toRemove.add(c);
}
}
attackers.removeAll(toRemove);
return attackers;
potentialAttackers.removeAll(toRemove);
return potentialAttackers;
}
if (ai.isCardInPlay("Masako the Humorless")) {
// "Tapped creatures you control can block as though they were untapped."
return potentialAttackers;
}
final CardCollection notNeededAsBlockers = new CardCollection(potentialAttackers);
final List<Card> vigilantes = new ArrayList<>();
for (final Card c : myList) {
if (c.getName().equals("Masako the Humorless")) {
// "Tapped creatures you control can block as though they were untapped."
return attackers;
}
for (final Card c : Iterables.concat(currentAttackers, potentialAttackers)) {
// no need to block if an effect is in play which untaps all creatures
// (pseudo-Vigilance akin to Awakening or Prophet of Kruphix)
if (c.hasKeyword(Keyword.VIGILANCE) || ComputerUtilCard.willUntap(ai, c)) {
vigilantes.add(c);
} else if (currentAttackers.contains(c)) {
// already attacking so can't block
notNeededAsBlockers.add(c);
}
}
// reduce the search space
@@ -399,10 +405,8 @@ public class AiAttackController {
}
});
final CardCollection notNeededAsBlockers = new CardCollection(attackers);
// don't hold back creatures that can't block any of the human creatures
final List<Card> blockers = getPossibleBlockers(attackers, opponentsAttackers, true);
final List<Card> blockers = getPossibleBlockers(potentialAttackers, opponentsAttackers, true);
if (!blockers.isEmpty()) {
notNeededAsBlockers.removeAll(blockers);
@@ -473,12 +477,15 @@ public class AiAttackController {
// these creatures will be available to block anyway
notNeededAsBlockers.addAll(vigilantes);
// remove those that were only included to ensure a full picture for the baseline
notNeededAsBlockers.removeAll(currentAttackers);
// Increase the total number of blockers needed by 1 if Finest Hour in play
// (human will get an extra first attack with a creature that untaps)
// In addition, if the computer guesses it needs no blockers, make sure
// that it won't be surprised by Exalted
final int humanExaltedBonus = defendingOpponent.countExaltedBonus();
int blockersNeeded = attackers.size() - notNeededAsBlockers.size();
int blockersNeeded = potentialAttackers.size() - notNeededAsBlockers.size();
if (humanExaltedBonus > 0) {
final boolean finestHour = defendingOpponent.isCardInPlay("Finest Hour");
@@ -511,24 +518,28 @@ public class AiAttackController {
public void reinforceWithBanding(final Player player, final Combat combat) {
reinforceWithBanding(player, combat, null);
}
public void reinforceWithBanding(final Player player, final Combat combat, final Card test) {
CardCollection attackers = combat.getAttackers();
if (attackers.isEmpty()) {
return;
}
List<String> bandsWithString = Arrays.asList("Bands with Other Legendary Creatures",
"Bands with Other Creatures named Wolves of the Hunt",
"Bands with Other Dinosaurs");
List<Card> bandingCreatures = new CardCollection();
List<Card> bandingCreatures = null;
if (test == null) {
bandingCreatures.addAll(notNeededAsBlockers(player.getCreaturesInPlay()));
bandingCreatures = CardLists.filter(bandingCreatures, card -> card.hasKeyword(Keyword.BANDING) || card.hasAnyKeyword(bandsWithString));
bandingCreatures = CardLists.filter(myList, card -> card.hasKeyword(Keyword.BANDING) || card.hasAnyKeyword(bandsWithString));
// filter out anything that can't legally attack or is already declared as an attacker
bandingCreatures = CardLists.filter(bandingCreatures, card -> !combat.isAttacking(card) && CombatUtil.canAttack(card));
bandingCreatures = notNeededAsBlockers(attackers, bandingCreatures);
} else {
// Test a specific creature for Banding
if (test.hasKeyword(Keyword.BANDING) || test.hasAnyKeyword(bandsWithString)) {
bandingCreatures.add(test);
bandingCreatures = new CardCollection(test);
}
}
@@ -539,12 +550,11 @@ public class AiAttackController {
return;
}
if (!bandingCreatures.isEmpty()) {
if (bandingCreatures != null) {
List<String> evasionKeywords = Arrays.asList("Flying", "Horsemanship", "Shadow", "Plainswalk", "Islandwalk",
"Forestwalk", "Mountainwalk", "Swampwalk");
// TODO: Assign to band with the best attacker for now, but needs better logic.
CardCollection attackers = combat.getAttackers();
for (Card c : bandingCreatures) {
Card bestBand;
@@ -1275,7 +1285,7 @@ public class AiAttackController {
if ( LOG_AI_ATTACKS )
System.out.println("Normal attack");
attackersLeft = notNeededAsBlockers(attackersLeft);
attackersLeft = notNeededAsBlockers(combat.getAttackers(), attackersLeft);
attackersLeft = sortAttackers(attackersLeft);
if ( LOG_AI_ATTACKS )