SeaSerpent.java example

Explorer
mage-master
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package mage.cards.s;

import mage.MageInt;
import mage.constants.ComparisonType;
import mage.abilities.common.ControlsPermanentsControllerTriggeredAbility;
import mage.abilities.common.SimpleStaticAbility;
import mage.abilities.effects.common.SacrificeSourceEffect;
import mage.abilities.effects.common.combat.CantAttackUnlessDefenderControllsPermanent;
import mage.cards.CardImpl;
import mage.cards.CardSetInfo;
import mage.constants.CardType;
import mage.constants.Zone;
import mage.filter.common.FilterLandPermanent;
import mage.filter.predicate.mageobject.SubtypePredicate;

import java.util.UUID;

/**
 *
 * @author KholdFuzion
 *
 */
public class SeaSerpent extends CardImpl {

    private static final FilterLandPermanent filter = new FilterLandPermanent("an Island");

    static {
        filter.add(new SubtypePredicate("Island"));
    }

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

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

        // Sea Serpent can't attack unless defending player controls an Island.
        this.addAbility(new SimpleStaticAbility(Zone.BATTLEFIELD, new CantAttackUnlessDefenderControllsPermanent(filter)));
        // When you control no Islands, sacrifice Sea Serpent.
        this.addAbility(new ControlsPermanentsControllerTriggeredAbility(
                new FilterLandPermanent("Island", "no Islands"), ComparisonType.EQUAL_TO, 0,
                new SacrificeSourceEffect()));
    }

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

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