foul-magics/Mage.Sets/src/mage/cards/d/DiluvianPrimordial.java

package mage.cards.d;

import mage.MageInt;
import mage.MageObjectReference;
import mage.abilities.Ability;
import mage.abilities.common.EntersBattlefieldTriggeredAbility;
import mage.abilities.effects.ContinuousEffect;
import mage.abilities.effects.OneShotEffect;
import mage.abilities.effects.ReplacementEffectImpl;
import mage.abilities.keyword.FlyingAbility;
import mage.cards.Card;
import mage.cards.CardImpl;
import mage.cards.CardSetInfo;
import mage.constants.*;
import mage.filter.FilterCard;
import mage.filter.predicate.Predicates;
import mage.filter.predicate.mageobject.CardTypePredicate;
import mage.filter.predicate.other.OwnerIdPredicate;
import mage.game.Game;
import mage.game.events.GameEvent;
import mage.game.events.GameEvent.EventType;
import mage.game.events.ZoneChangeEvent;
import mage.players.Player;
import mage.target.Target;
import mage.target.common.TargetCardInOpponentsGraveyard;
import mage.target.targetadjustment.TargetAdjuster;
import mage.target.targetpointer.FixedTarget;

import java.util.UUID;

/**
 * @author LevelX2
 */
public final class DiluvianPrimordial extends CardImpl {

    public DiluvianPrimordial(UUID ownerId, CardSetInfo setInfo) {
        super(ownerId, setInfo, new CardType[]{CardType.CREATURE}, "{5}{U}{U}");
        this.subtype.add(SubType.AVATAR);

        this.power = new MageInt(5);
        this.toughness = new MageInt(5);

        // Flying
        this.addAbility(FlyingAbility.getInstance());

        // When Diluvian Primordial enters the battlefield, for each opponent, you may cast up to one target instant or sorcery card from that player's graveyard without paying its mana cost. If a card cast this way would be put into a graveyard this turn, exile it instead.
        Ability ability = new EntersBattlefieldTriggeredAbility(new DiluvianPrimordialEffect(), false);
        ability.setTargetAdjuster(DiluvianPrimordialAdjuster.instance);
        this.addAbility(ability);
    }

    public DiluvianPrimordial(final DiluvianPrimordial card) {
        super(card);
    }

    @Override
    public DiluvianPrimordial copy() {
        return new DiluvianPrimordial(this);
    }
}

enum DiluvianPrimordialAdjuster implements TargetAdjuster {
    instance;

    @Override
    public void adjustTargets(Ability ability, Game game) {
        ability.getTargets().clear();
        for (UUID opponentId : game.getOpponents(ability.getControllerId())) {
            Player opponent = game.getPlayer(opponentId);
            if (opponent == null) {
                continue;
            }
            FilterCard filter = new FilterCard("instant or sorcery card from " + opponent.getLogName() + "'s graveyard");
            filter.add(new OwnerIdPredicate(opponentId));
            filter.add(Predicates.or(new CardTypePredicate(CardType.INSTANT), new CardTypePredicate(CardType.SORCERY)));
            TargetCardInOpponentsGraveyard target = new TargetCardInOpponentsGraveyard(0, 1, filter);
            ability.addTarget(target);
        }
    }
}

class DiluvianPrimordialEffect extends OneShotEffect {

    public DiluvianPrimordialEffect() {
        super(Outcome.PlayForFree);
        this.staticText = "for each opponent, you may cast up to one target instant or sorcery card from that player's graveyard without paying its mana cost. If a card cast this way would be put into a graveyard this turn, exile it instead";
    }

    public DiluvianPrimordialEffect(final DiluvianPrimordialEffect effect) {
        super(effect);
    }

    @Override
    public DiluvianPrimordialEffect copy() {
        return new DiluvianPrimordialEffect(this);
    }

    @Override
    public boolean apply(Game game, Ability source) {
        Player controller = game.getPlayer(source.getControllerId());
        if (controller != null) {
            for (Target target : source.getTargets()) {
                if (target instanceof TargetCardInOpponentsGraveyard) {
                    Card targetCard = game.getCard(target.getFirstTarget());
                    if (targetCard != null) {
                        if (controller.chooseUse(outcome, "Cast " + targetCard.getLogName() + '?', source, game)) {
                            if (controller.cast(targetCard.getSpellAbility(), game, true, new MageObjectReference(source.getSourceObject(game), game))) {
                                ContinuousEffect effect = new DiluvianPrimordialReplacementEffect();
                                effect.setTargetPointer(new FixedTarget(targetCard.getId(), game.getState().getZoneChangeCounter(targetCard.getId())));
                                game.addEffect(effect, source);
                            }
                        }
                    }
                }
            }
            return true;
        }
        return false;
    }
}

class DiluvianPrimordialReplacementEffect extends ReplacementEffectImpl {

    public DiluvianPrimordialReplacementEffect() {
        super(Duration.EndOfTurn, Outcome.Exile);
        staticText = "If a card cast this way would be put into a graveyard this turn, exile it instead";
    }

    public DiluvianPrimordialReplacementEffect(final DiluvianPrimordialReplacementEffect effect) {
        super(effect);
    }

    @Override
    public DiluvianPrimordialReplacementEffect copy() {
        return new DiluvianPrimordialReplacementEffect(this);
    }

    @Override
    public boolean apply(Game game, Ability source) {
        return true;
    }

    @Override
    public boolean replaceEvent(GameEvent event, Ability source, Game game) {
        Player controller = game.getPlayer(source.getControllerId());
        if (controller != null) {
            Card card = game.getCard(getTargetPointer().getFirst(game, source));
            if (card != null) {
                controller.moveCardToExileWithInfo(card, null, "", source.getSourceId(), game, Zone.STACK, true);
                return true;
            }
        }
        return false;
    }

    @Override
    public boolean checksEventType(GameEvent event, Game game) {
        return event.getType() == EventType.ZONE_CHANGE;
    }

    @Override
    public boolean applies(GameEvent event, Ability source, Game game) {
        ZoneChangeEvent zEvent = (ZoneChangeEvent) event;
        return zEvent.getToZone() == Zone.GRAVEYARD
                && ((ZoneChangeEvent) event).getTargetId().equals(getTargetPointer().getFirst(game, source));
    }
}