Package mage.sets.magic2014

Source Code of mage.sets.magic2014.ReturnExiledCreatureEffect

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package mage.sets.magic2014;

import java.util.LinkedList;
import java.util.UUID;
import mage.MageInt;
import mage.MageObject;
import mage.abilities.Ability;
import mage.abilities.TriggeredAbilityImpl;
import mage.abilities.common.EntersBattlefieldTriggeredAbility;
import mage.abilities.effects.OneShotEffect;
import mage.abilities.effects.common.ExileTargetEffect;
import mage.cards.Card;
import mage.cards.CardImpl;
import mage.constants.CardType;
import mage.constants.Outcome;
import mage.constants.Rarity;
import mage.constants.TargetController;
import mage.constants.Zone;
import mage.filter.common.FilterCreaturePermanent;
import mage.filter.predicate.permanent.ControllerPredicate;
import mage.game.ExileZone;
import mage.game.Game;
import mage.game.events.GameEvent;
import mage.game.events.ZoneChangeEvent;
import mage.game.permanent.Permanent;
import mage.target.common.TargetCreaturePermanent;

/**
*
* @author jeffwadsworth using LevelX2 tech
*/
public class BanisherPriest extends CardImpl {

    private final static FilterCreaturePermanent filter = new FilterCreaturePermanent("creature an opponent controls");
    static {
        filter.add(new ControllerPredicate(TargetController.OPPONENT));
    }

    public BanisherPriest(UUID ownerId) {
        super(ownerId, 7, "Banisher Priest", Rarity.UNCOMMON, new CardType[]{CardType.CREATURE}, "{1}{W}{W}");
        this.expansionSetCode = "M14";
        this.subtype.add("Human");
        this.subtype.add("Cleric");

        this.color.setWhite(true);
        this.power = new MageInt(2);
        this.toughness = new MageInt(2);

        // When Banisher Priest enters the battlefield, exile target creature an opponent controls until Banisher Priest leaves the battlefield.
        Ability ability = new EntersBattlefieldTriggeredAbility(new BanisherPriestExileEffect());
        ability.addTarget(new TargetCreaturePermanent(filter));
        this.addAbility(ability);
        // Implemented as triggered effect that doesn't uses the stack (implementation with watcher does not work correctly because if the returned creature
        // has a DiesTriggeredAll ability it triggers for the dying Banish Priest, what shouldn't happen)
        this.addAbility(new BanisherPriestReturnExiledAbility());
       
       

    }

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

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

class BanisherPriestExileEffect extends OneShotEffect {

    public BanisherPriestExileEffect() {
        super(Outcome.Benefit);
        this.staticText = "exile target creature an opponent controls until {this} leaves the battlefield. <i>(That creature returns under its owner's control.)</i>";
    }

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

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

    @Override
    public boolean apply(Game game, Ability source) {
        Permanent permanent = game.getPermanent(source.getSourceId());
        // If Banisher Priest leaves the battlefield before its triggered ability resolves,
        // the target creature won't be exiled.
        if (permanent != null) {
            return new ExileTargetEffect(source.getSourceId(), permanent.getName()).apply(game, source);
        }
        return false;
    }
}

/**
* Returns the exiled card as Banisher Priest leaves battlefield
* Uses no stack
* @author LevelX2
*/

class BanisherPriestReturnExiledAbility extends TriggeredAbilityImpl {

    public BanisherPriestReturnExiledAbility() {
        super(Zone.BATTLEFIELD, new ReturnExiledCreatureEffect());
        this.usesStack = false;
        this.setRuleVisible(false);
    }

    public BanisherPriestReturnExiledAbility(final BanisherPriestReturnExiledAbility ability) {
        super(ability);
    }

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

    @Override
    public boolean checkTrigger(GameEvent event, Game game) {
        if (event.getType() == GameEvent.EventType.ZONE_CHANGE && event.getTargetId().equals(this.getSourceId())) {
            ZoneChangeEvent zEvent = (ZoneChangeEvent) event;
            if (zEvent.getFromZone() == Zone.BATTLEFIELD) {
                return true;
            }
        }
        return false;
    }
}

class ReturnExiledCreatureEffect extends OneShotEffect {

    public ReturnExiledCreatureEffect() {
        super(Outcome.Benefit);
        this.staticText = "Return exiled creature";
    }

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

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

    @Override
    public boolean apply(Game game, Ability source) {
        ExileZone exile = game.getExile().getExileZone(source.getSourceId());
        MageObject sourceObject = game.getObject(source.getSourceId());
        if (exile != null && sourceObject != null) {
            LinkedList<UUID> cards = new LinkedList<>(exile);
            for (UUID cardId : cards) {
                Card card = game.getCard(cardId);
                card.moveToZone(Zone.BATTLEFIELD, source.getSourceId(), game, false);
                game.informPlayers(new StringBuilder(sourceObject.getLogName()).append(": ").append(card.getName()).append(" returns to battlefield from exile").toString());
            }
            exile.clear();
            return true;
        }
        return false;
    }
}
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