forked from External/mage
c7a485b728
- refactor: simplified target implementation from a dozen canTarget, canChoose and possibleTargets methods to canTarget/possibleTargets only (part of #13638, #13766); - refactor: fixed wrong target implementations in many cards (example: TargetCardInHand for opponent's hand, close #6210); - AI: now human, AI and test players -- all use possibleTargets logic in most use cases instead filters or custom validation; - AI: improved AI sims support for multiple targets abilities; - AI: improved AI stability, freezes and targets errors in some use cases;
105 lines
3.4 KiB
Java
105 lines
3.4 KiB
Java
package mage.cards.m;
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import mage.abilities.Ability;
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import mage.abilities.condition.Condition;
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import mage.abilities.decorator.ConditionalOneShotEffect;
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import mage.abilities.effects.common.DrawCardSourceControllerEffect;
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import mage.abilities.effects.common.continuous.ExchangeControlTargetEffect;
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import mage.cards.CardImpl;
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import mage.cards.CardSetInfo;
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import mage.constants.CardType;
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import mage.constants.Duration;
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import mage.filter.common.FilterCreaturePermanent;
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import mage.game.Controllable;
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import mage.game.Game;
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import mage.game.permanent.Permanent;
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import mage.target.Target;
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import mage.target.TargetPermanent;
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import mage.target.targetpointer.EachTargetPointer;
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import java.util.Collection;
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import java.util.Objects;
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import java.util.UUID;
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/**
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* @author TheElk801
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*/
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public final class ModifyMemory extends CardImpl {
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public ModifyMemory(UUID ownerId, CardSetInfo setInfo) {
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super(ownerId, setInfo, new CardType[]{CardType.SORCERY}, "{4}{U}");
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// Exchange control of two target creatures controlled by different players. If you control neither creature, draw three cards.
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this.getSpellAbility().addEffect(new ExchangeControlTargetEffect(
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Duration.Custom, "exchange control of two target creatures controlled by different players"
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).setTargetPointer(new EachTargetPointer()));
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this.getSpellAbility().addEffect(new ConditionalOneShotEffect(
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new DrawCardSourceControllerEffect(3), ModifyMemoryCondition.instance,
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"If you control neither creature, draw three cards"
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));
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this.getSpellAbility().addTarget(new ModifyMemoryTarget());
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}
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private ModifyMemory(final ModifyMemory card) {
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super(card);
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}
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@Override
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public ModifyMemory copy() {
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return new ModifyMemory(this);
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}
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}
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enum ModifyMemoryCondition implements Condition {
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instance;
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@Override
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public boolean apply(Game game, Ability source) {
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return source
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.getTargets()
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.stream()
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.map(Target::getTargets)
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.flatMap(Collection::stream)
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.map(game::getPermanentOrLKIBattlefield)
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.filter(Objects::nonNull)
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.map(Controllable::getControllerId)
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.noneMatch(source::isControlledBy);
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}
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}
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class ModifyMemoryTarget extends TargetPermanent {
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private static final FilterCreaturePermanent filter
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= new FilterCreaturePermanent("creatures controlled by different players");
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ModifyMemoryTarget() {
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super(2, 2, filter, false);
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}
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private ModifyMemoryTarget(final ModifyMemoryTarget target) {
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super(target);
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}
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@Override
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public ModifyMemoryTarget copy() {
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return new ModifyMemoryTarget(this);
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}
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@Override
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public boolean canTarget(UUID playerId, UUID id, Ability source, Game game) {
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if (!super.canTarget(playerId, id, source, game)) {
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return false;
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}
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Permanent creature = game.getPermanent(id);
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if (creature == null) {
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return false;
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}
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return this.getTargets()
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.stream()
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.map(game::getPermanent)
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.filter(Objects::nonNull)
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.noneMatch(permanent -> !creature.getId().equals(permanent.getId())
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&& creature.isControlledBy(permanent.getControllerId())
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);
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}
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}
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