GreenbeltRampager.java example

Explorer
mage-master
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package mage.cards.g;

import mage.MageInt;
import mage.abilities.Ability;
import mage.abilities.common.EntersBattlefieldTriggeredAbility;
import mage.abilities.effects.OneShotEffect;
import mage.cards.CardImpl;
import mage.cards.CardSetInfo;
import mage.constants.CardType;
import mage.constants.Outcome;
import mage.constants.Zone;
import mage.counters.CounterType;
import mage.game.Game;
import mage.game.permanent.Permanent;
import mage.players.Player;

import java.util.UUID;

/**
 * @author JRHerlehy
 */
public class GreenbeltRampager extends CardImpl {

    public GreenbeltRampager(UUID ownerId, CardSetInfo setInfo) {
        super(ownerId, setInfo, new CardType[]{CardType.CREATURE}, "{G}");

        this.subtype.add("Elephant");
        this.power = new MageInt(3);
        this.toughness = new MageInt(4);

        // When Greenbelt Rampager enters the battlefield, pay {E}{E}. If you can't, return Greenbelt Rampager to its owner's hand and you get {E}.
        this.addAbility(new EntersBattlefieldTriggeredAbility(new GreenbeltRampagerEffect(), false));
    }

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

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

    private static class GreenbeltRampagerEffect extends OneShotEffect {

        GreenbeltRampagerEffect() {
            super(Outcome.Neutral);
            this.staticText = "pay {E}{E}. If you can't, return {this} to its owner's hand and you get {E}";
        }

        GreenbeltRampagerEffect(final GreenbeltRampagerEffect effect) {
            super(effect);
        }

        @Override
        public boolean apply(Game game, Ability source) {
            Permanent card = game.getPermanent(source.getSourceId());
            Player player = game.getPlayer(source.getControllerId());

            if (card == null || player == null) return false;

            if (player.getCounters().getCount(CounterType.ENERGY) > 1) {
                player.getCounters().removeCounter(CounterType.ENERGY, 2);
            } else {
                card.moveToZone(Zone.HAND, source.getSourceId(), game, true);
                player.addCounters(CounterType.ENERGY.createInstance(), game);
            }

            return true;
        }

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

}