foul-magics/Mage.Sets/src/mage/sets/saviorsofkamigawa/SkyfireKirin.java

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package mage.sets.saviorsofkamigawa;

import java.util.UUID;
import mage.MageInt;
import mage.abilities.Ability;
import mage.abilities.common.SpellCastControllerTriggeredAbility;
import mage.abilities.effects.ContinuousEffect;
import mage.abilities.effects.OneShotEffect;
import mage.abilities.effects.common.continuous.GainControlTargetEffect;
import mage.abilities.keyword.FlyingAbility;
import mage.cards.Card;
import mage.cards.CardImpl;
import mage.constants.AbilityType;
import mage.constants.CardType;
import mage.constants.Duration;
import mage.constants.Outcome;
import mage.constants.Rarity;
import mage.constants.Zone;
import mage.filter.FilterPermanent;
import mage.filter.common.FilterCreaturePermanent;
import mage.filter.common.FilterSpiritOrArcaneCard;
import mage.game.Game;
import mage.game.permanent.Permanent;
import mage.game.stack.Spell;
import mage.target.Target;
import mage.target.TargetPermanent;
import mage.target.common.TargetCreaturePermanent;
import mage.target.targetpointer.FixedTarget;

/**
 *
 * @author LevelX2
 */
public class SkyfireKirin extends CardImpl {

    public SkyfireKirin(UUID ownerId) {
        super(ownerId, 113, "Skyfire Kirin", Rarity.RARE, new CardType[]{CardType.CREATURE}, "{2}{R}{R}");
        this.expansionSetCode = "SOK";
        this.supertype.add("Legendary");
        this.subtype.add("Kirin");
        this.subtype.add("Spirit");

        this.power = new MageInt(3);
        this.toughness = new MageInt(3);

        // Flying
        this.addAbility(FlyingAbility.getInstance());
        // Whenever you cast a Spirit or Arcane spell, you may gain control of target creature with that spell's converted mana cost until end of turn.
        Ability ability = new SpellCastControllerTriggeredAbility(Zone.BATTLEFIELD, new SkyfireKirinEffect(), new FilterSpiritOrArcaneCard(), true, true);
        ability.addTarget(new TargetCreaturePermanent());
        this.addAbility(ability);
    }

    @Override
    public void adjustTargets(Ability ability, Game game) {
        if (ability.getAbilityType().equals(AbilityType.TRIGGERED)) {
            Spell spell = game.getStack().getSpell(ability.getEffects().get(0).getTargetPointer().getFirst(game, ability));
            if (spell != null) {
                int cmc = spell.getConvertedManaCost();
                ability.getTargets().clear();
                FilterPermanent filter = new FilterCreaturePermanent(new StringBuilder("creature with converted mana costs of ").append(cmc).toString());
                Target target = new TargetPermanent(filter);
                ability.addTarget(target);
            }
        }
    }

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

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

class SkyfireKirinEffect extends OneShotEffect {

    public SkyfireKirinEffect() {
        super(Outcome.Detriment);
        this.staticText = "you may gain control of target creature with that spell's converted mana cost until end of turn";
    }

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

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

    @Override
    public boolean apply(Game game, Ability source) {
        Permanent targetCreature = null;
        for(Target target: source.getTargets()) {
            if (target instanceof TargetPermanent) {
                targetCreature = game.getPermanent(target.getFirstTarget());
            }
        }
        if (targetCreature != null) {
            ContinuousEffect effect = new GainControlTargetEffect(Duration.EndOfTurn);
            effect.setTargetPointer(new FixedTarget(targetCreature.getId()));
            game.addEffect(effect, source);
            return true;
        }
        return false;
    }
}