ScribNibblers.java example

Explorer
mage-master
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package mage.cards.s;

import java.util.UUID;

import mage.constants.CardType;
import mage.MageInt;
import mage.abilities.Ability;
import mage.abilities.common.LandfallAbility;
import mage.abilities.common.SimpleActivatedAbility;
import mage.abilities.costs.common.TapSourceCost;
import mage.abilities.effects.OneShotEffect;
import mage.abilities.effects.common.UntapSourceEffect;
import mage.cards.Card;
import mage.cards.CardImpl;
import mage.cards.CardSetInfo;
import mage.constants.Outcome;
import mage.constants.Zone;
import mage.game.Game;
import mage.players.Player;
import mage.target.TargetPlayer;

/**
 *
 * @author jeffwadsworth
 */
public class ScribNibblers extends CardImpl {

    public ScribNibblers(UUID ownerId, CardSetInfo setInfo) {
        super(ownerId,setInfo,new CardType[]{CardType.CREATURE},"{2}{B}");
        this.subtype.add("Rat");

        this.power = new MageInt(1);
        this.toughness = new MageInt(1);

        // {tap}: Exile the top card of target player's library. If it's a land card, you gain 1 life.
        Ability ability = new SimpleActivatedAbility(Zone.BATTLEFIELD, new ScribNibblersEffect(), new TapSourceCost());
        ability.addTarget(new TargetPlayer());
        this.addAbility(ability);

        // Landfall - Whenever a land enters the battlefield under your control, you may untap Scrib Nibblers.
        this.addAbility(new LandfallAbility(Zone.BATTLEFIELD, new UntapSourceEffect(), true));
    }

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

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

class ScribNibblersEffect extends OneShotEffect {

    public ScribNibblersEffect() {
        super(Outcome.Neutral);
        this.staticText = "Exile the top card of target player's library. If it's a land card, you gain 1 life";
    }

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

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

    @Override
    public boolean apply(Game game, Ability source) {
        Player you = game.getPlayer(source.getControllerId());
        Player targetPlayer = game.getPlayer(source.getFirstTarget());
        if (targetPlayer != null && targetPlayer.getLibrary().hasCards()) {
            Card card = targetPlayer.getLibrary().getFromTop(game);
            card.moveToExile(id, "Scrib Nibblers Exile", source.getSourceId(), game);
            if (card != null && card.isLand()) {
                you.gainLife(1, game);
                return true;
            }
        }
        return false;
    }
}