PaleWayfarer.java example

Explorer
mage-master
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package mage.cards.p;

import java.util.UUID;
import mage.MageInt;
import mage.abilities.Ability;
import mage.abilities.common.SimpleActivatedAbility;
import mage.abilities.costs.common.UntapSourceCost;
import mage.abilities.costs.mana.ManaCostsImpl;
import mage.abilities.effects.OneShotEffect;
import mage.cards.CardImpl;
import mage.cards.CardSetInfo;
import mage.choices.ChoiceColor;
import mage.constants.CardType;
import mage.constants.Outcome;
import mage.constants.Zone;
import mage.game.Game;
import mage.game.permanent.Permanent;
import mage.players.Player;
import mage.target.common.TargetCreaturePermanent;

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

    public PaleWayfarer(UUID ownerId, CardSetInfo setInfo) {
        super(ownerId,setInfo,new CardType[]{CardType.CREATURE},"{5}{W}{W}");
        this.subtype.add("Spirit");
        this.subtype.add("Giant");

        this.power = new MageInt(4);
        this.toughness = new MageInt(4);

        // {2}{W}{W}, {untap}: Target creature gains protection from the color of its controller's choice until end of turn.
        Ability ability = new SimpleActivatedAbility(Zone.BATTLEFIELD, new PaleWayfarerEffect(), new ManaCostsImpl("{2}{W}{W}"));
        ability.addCost(new UntapSourceCost());
        ability.addTarget(new TargetCreaturePermanent());
        this.addAbility(ability);

    }

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

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

class PaleWayfarerEffect extends OneShotEffect {

    public PaleWayfarerEffect() {
        super(Outcome.BoostCreature);
        staticText = "Target creature gains protection from the color of its controller's choice until end of turn";
    }

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

    @Override
    public boolean apply(Game game, Ability source) {
        Permanent targetCreature = game.getPermanent(source.getFirstTarget());
        if (targetCreature != null) {
            Player player = game.getPlayer(targetCreature.getControllerId());
            if (player != null) {
                ChoiceColor colorChoice = new ChoiceColor();
                if (player.choose(Outcome.Neutral, colorChoice, game)) {
                    game.informPlayers(targetCreature.getName() + ": " + player.getLogName() + " has chosen " + colorChoice.getChoice());
                    game.getState().setValue(targetCreature.getId() + "_color", colorChoice.getColor());
                }
            }
        }
        return false;
    }

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