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- Expanded r28953 to support bouncing creatures to save them

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This commit is contained in:
excessum
2015-03-07 12:26:33 +00:00
parent 3b8bf1cc83
commit 64e9d0867c
2 changed files with 74 additions and 41 deletions
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14
forge-ai/src/main/java/forge/ai/ComputerUtil.java
View File

@@ -42,6 +42,7 @@ import forge.game.phase.PhaseType;
import forge.game.player.Player;
import forge.game.spellability.AbilityManaPart;
import forge.game.spellability.SpellAbility;
import forge.game.spellability.SpellAbilityStackInstance;
import forge.game.spellability.TargetRestrictions;
import forge.game.staticability.StaticAbility;
import forge.game.trigger.Trigger;
@@ -1072,8 +1073,17 @@ public class ComputerUtil {
}
// check stack for something that will kill this
final SpellAbility topStack = game.getStack().peekAbility();
Iterables.addAll(objects, ComputerUtil.predictThreatenedObjects(aiPlayer, sa, topStack));
for (SpellAbilityStackInstance si : game.getStack()) {
// iterate from top of stack to find SpellAbility, including sub-abilities,
// that does not match "sa"
SpellAbility spell = si.getSpellAbility(true), sub = spell.getSubAbility();
while (sub != null && sub != sa) {
sub = sub.getSubAbility();
}
if (sa != spell && sa != sub) {
Iterables.addAll(objects, ComputerUtil.predictThreatenedObjects(aiPlayer, sa, spell));
}
}
return objects;
}

101
forge-ai/src/main/java/forge/ai/ability/ChangeZoneAi.java
View File

@@ -306,7 +306,7 @@ public class ChangeZoneAi extends SpellAbilityAi {
}
}
}
return false;
return canBouncePermanent(ai, sa, list) != null;
}
}
@@ -740,12 +740,6 @@ public class ChangeZoneAi extends SpellAbilityAi {
// Narrow down the list:
if (origin.equals(ZoneType.Battlefield)) {
// filter out untargetables
CardCollectionView aiPermanents = CardLists.filterControlledBy(list, ai);
// Don't blink cards that will die.
aiPermanents = ComputerUtil.getSafeTargets(ai, sa, aiPermanents);
if ("Polymorph".equals(sa.getParam("AILogic"))) {
list = CardLists.getTargetableCards(ai.getCardsIn(ZoneType.Battlefield), sa);
if (list.isEmpty()) {
@@ -808,38 +802,10 @@ public class ChangeZoneAi extends SpellAbilityAi {
&& (subApi == ApiType.DelayedTrigger || (subApi == ApiType.ChangeZone && subAffected.equals("Remembered")))))
&& (tgt.getMinTargets(sa.getHostCard(), sa) <= 1)) {
// check stack for something on the stack that will kill
// anything i control
if (!game.getStack().isEmpty()) {
final List<GameObject> objects = ComputerUtil.predictThreatenedObjects(ai, sa);
final List<Card> threatenedTargets = new ArrayList<Card>();
for (final Card c : aiPermanents) {
if (objects.contains(c)) {
threatenedTargets.add(c);
}
}
if (!threatenedTargets.isEmpty()) {
// Choose "best" of the remaining to save
sa.getTargets().add(ComputerUtilCard.getBestAI(threatenedTargets));
return true;
}
}
// Save combatants
else if (game.getPhaseHandler().is(PhaseType.COMBAT_DECLARE_BLOCKERS)) {
Combat combat = game.getCombat();
final CardCollection combatants = CardLists.filter(aiPermanents, CardPredicates.Presets.CREATURES);
ComputerUtilCard.sortByEvaluateCreature(combatants);
for (final Card c : combatants) {
if (c.getShieldCount() == 0 && ComputerUtilCombat.combatantWouldBeDestroyed(ai, c, combat)
&& c.getOwner() == ai && !c.isToken()) {
sa.getTargets().add(c);
return true;
}
}
Card tobounce = canBouncePermanent(ai, sa, list);
if (tobounce != null) {
sa.getTargets().add(tobounce);
return true;
}
if (!CardLists.getNotType(list, "Land").isEmpty()) {
@@ -1031,6 +997,57 @@ public class ChangeZoneAi extends SpellAbilityAi {
return true;
}
/**
* Checks if a permanent threatened by a stack ability or in combat can
* be saved by bouncing.
* @param ai controlling player
* @param sa ChangeZone ability
* @param list possible targets
* @return target to bounce, null if no good targets
*/
private static Card canBouncePermanent(final Player ai, SpellAbility sa, CardCollectionView list) {
Game game = ai.getGame();
// filter out untargetables
CardCollectionView aiPermanents = CardLists
.filterControlledBy(list, ai);
// Don't blink cards that will die.
aiPermanents = ComputerUtil.getSafeTargets(ai, sa, aiPermanents);
if (!game.getStack().isEmpty()) {
final List<GameObject> objects = ComputerUtil
.predictThreatenedObjects(ai, sa);
final List<Card> threatenedTargets = new ArrayList<Card>();
for (final Card c : aiPermanents) {
if (objects.contains(c)) {
threatenedTargets.add(c);
}
}
if (!threatenedTargets.isEmpty()) {
// Choose "best" of the remaining to save
return ComputerUtilCard.getBestAI(threatenedTargets);
}
}
// Save combatants
else if (game.getPhaseHandler().is(PhaseType.COMBAT_DECLARE_BLOCKERS)) {
Combat combat = game.getCombat();
final CardCollection combatants = CardLists.filter(aiPermanents,
CardPredicates.Presets.CREATURES);
ComputerUtilCard.sortByEvaluateCreature(combatants);
for (final Card c : combatants) {
if (c.getShieldCount() == 0
&& ComputerUtilCombat.combatantWouldBeDestroyed(ai, c,
combat) && c.getOwner() == ai && !c.isToken()) {
return c;
}
}
}
return null;
}
private static boolean isUnpreferredTarget(final Player ai, final SpellAbility sa, final boolean mandatory) {
if (!mandatory) {
@@ -1224,6 +1241,12 @@ public class ChangeZoneAi extends SpellAbilityAi {
c = ComputerUtilCard.getBestAI(fetchList);
} else {
c = ComputerUtilCard.getWorstAI(fetchList);
if (sa.getHostCard().getName().equals("Temur Sabertooth")) {
Card tobounce = canBouncePermanent(player, sa, fetchList);
if (tobounce != null) {
c = tobounce;
}
}
}
} else if (origin.contains(ZoneType.Library) && (type.contains("Basic") || areAllBasics(type))) {
c = basicManaFixing(decider, fetchList);