foul-magics/Mage.Sets/src/mage/sets/magic2012/DoublingChant.java

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package mage.sets.magic2012;

import mage.constants.CardType;
import mage.constants.Outcome;
import mage.constants.Rarity;
import mage.constants.Zone;
import mage.abilities.Ability;
import mage.abilities.effects.OneShotEffect;
import mage.cards.Card;
import mage.cards.CardImpl;
import mage.filter.common.FilterCreatureCard;
import mage.filter.common.FilterCreaturePermanent;
import mage.game.Game;
import mage.game.permanent.Permanent;
import mage.players.Player;
import mage.target.common.TargetCardInLibrary;

import java.util.ArrayList;
import java.util.List;
import java.util.UUID;
import mage.filter.predicate.mageobject.NamePredicate;

/**
 *
 * @author North
 */
public class DoublingChant extends CardImpl {

    public DoublingChant(UUID ownerId) {
        super(ownerId, 170, "Doubling Chant", Rarity.RARE, new CardType[]{CardType.SORCERY}, "{5}{G}");
        this.expansionSetCode = "M12";


        this.getSpellAbility().addEffect(new DoublingChantEffect());
    }

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

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

class DoublingChantEffect extends OneShotEffect {

    public DoublingChantEffect() {
        super(Outcome.PutCreatureInPlay);
        this.staticText = "For each creature you control, you may search your library for a creature card with the same name as that creature. Put those cards onto the battlefield, then shuffle your library";
    }

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

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

    @Override
    public boolean apply(Game game, Ability source) {
        List<Card> chosenCards = new ArrayList<Card>();
        List<String> namesFiltered = new ArrayList<String>();

        Player player = game.getPlayer(source.getControllerId());
        if (player == null) {
            return false;
        }
        List<Permanent> creatures = game.getBattlefield().getAllActivePermanents(new FilterCreaturePermanent(), source.getControllerId(), game);
        for (Permanent creature : creatures) {
            final String creatureName = creature.getName();
            if (!namesFiltered.contains(creatureName)) {
                StringBuilder sb = new StringBuilder();
                sb.append("Search for ").append(creatureName).append(" in your library?");

                if (player.chooseUse(Outcome.PutCreatureInPlay, sb.toString(), source, game)) {
                    FilterCreatureCard filter = new FilterCreatureCard("creature card named" + creatureName);
                    filter.add(new NamePredicate(creatureName));
                    TargetCardInLibrary target = new TargetCardInLibrary(filter);

                    if (player.searchLibrary(target, game)) {
                        Card card = player.getLibrary().getCard(target.getFirstTarget(), game);
                        if (card != null) {
                            chosenCards.add(card);
                        }
                    }
                } else {
                    namesFiltered.add(creatureName);
                }
            }
        }

        for (Card card : chosenCards) {
            card.putOntoBattlefield(game, Zone.LIBRARY, source.getSourceId(), source.getControllerId());
        }
        player.shuffleLibrary(game);
        return true;
    }
}