TamiyoFieldResearcher.java example

Explorer
mage-master
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package mage.cards.t;

import java.util.ArrayList;
import java.util.List;
import java.util.UUID;
import mage.MageObjectReference;
import mage.abilities.Ability;
import mage.abilities.DelayedTriggeredAbility;
import mage.abilities.LoyaltyAbility;
import mage.abilities.common.PlanswalkerEntersWithLoyalityCountersAbility;
import mage.abilities.effects.OneShotEffect;
import mage.abilities.effects.common.DontUntapInControllersNextUntapStepTargetEffect;
import mage.abilities.effects.common.DrawCardSourceControllerEffect;
import mage.abilities.effects.common.GetEmblemEffect;
import mage.abilities.effects.common.TapTargetEffect;
import mage.cards.CardImpl;
import mage.cards.CardSetInfo;
import mage.constants.CardType;
import mage.constants.Duration;
import mage.constants.Outcome;
import mage.filter.FilterPermanent;
import mage.filter.common.FilterCreaturePermanent;
import mage.filter.predicate.Predicates;
import mage.filter.predicate.mageobject.CardTypePredicate;
import mage.game.Game;
import mage.game.command.emblems.TamiyoFieldResearcherEmblem;
import mage.game.events.DamagedEvent;
import mage.game.events.GameEvent;
import mage.game.permanent.Permanent;
import mage.players.Player;
import mage.target.TargetPermanent;
import mage.target.common.TargetCreaturePermanent;

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

    private final static FilterPermanent filter = new FilterPermanent("nonland permanent");

    static {
        filter.add(Predicates.not(new CardTypePredicate(CardType.LAND)));
    }

    public TamiyoFieldResearcher(UUID ownerId, CardSetInfo setInfo) {
        super(ownerId, setInfo, new CardType[]{CardType.PLANESWALKER}, "{1}{G}{W}{U}");
        this.subtype.add("Tamiyo");

        this.addAbility(new PlanswalkerEntersWithLoyalityCountersAbility(4));

        // +1: Choose up to two target creatures. Until your next turn, whenever either of those creatures deals combat damage, you draw a card.
        Ability ability = new LoyaltyAbility(new TamiyoFieldResearcherEffect1(), 1);
        ability.addTarget(new TargetCreaturePermanent(0, 2, new FilterCreaturePermanent("creatures"), false));
        this.addAbility(ability);

        // -2: Tap up to two target nonland permanents. They don't untap during their controller's next untap step.
        ability = new LoyaltyAbility(new TapTargetEffect(), -2);
        ability.addTarget(new TargetPermanent(0, 2, filter, false));
        ability.addEffect(new DontUntapInControllersNextUntapStepTargetEffect("They"));
        this.addAbility(ability);

        // -7: Draw three cards. You get an emblem with "You may cast nonland cards from your hand without paying their mana costs."
        ability = new LoyaltyAbility(new DrawCardSourceControllerEffect(3), -7);
        ability.addEffect(new GetEmblemEffect(new TamiyoFieldResearcherEmblem()));
        this.addAbility(ability);
    }

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

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

class TamiyoFieldResearcherEffect1 extends OneShotEffect {

    public TamiyoFieldResearcherEffect1() {
        super(Outcome.PreventDamage);
        this.staticText = "Choose up to two target creatures. Until your next turn, whenever either of those creatures deals combat damage, you draw a card";
    }

    public TamiyoFieldResearcherEffect1(final TamiyoFieldResearcherEffect1 effect) {
        super(effect);
    }

    @Override
    public TamiyoFieldResearcherEffect1 copy() {
        return new TamiyoFieldResearcherEffect1(this);
    }

    @Override
    public boolean apply(Game game, Ability source) {
        Player controller = game.getPlayer(source.getControllerId());
        if (controller != null) {
            ArrayList<MageObjectReference> creatures = new ArrayList<>();
            for (UUID uuid : getTargetPointer().getTargets(game, source)) {
                creatures.add(new MageObjectReference(uuid, game));
            }
            if (!creatures.isEmpty()) {
                DelayedTriggeredAbility delayedAbility = new TamiyoFieldResearcherDelayedTriggeredAbility(creatures, game.getTurnNum());
                game.addDelayedTriggeredAbility(delayedAbility, source);
            }
            return true;
        }
        return false;
    }
}

class TamiyoFieldResearcherDelayedTriggeredAbility extends DelayedTriggeredAbility {

    private int startingTurn;
    private List<MageObjectReference> creatures;

    public TamiyoFieldResearcherDelayedTriggeredAbility(List<MageObjectReference> creatures, int startingTurn) {
        super(new DrawCardSourceControllerEffect(1), Duration.Custom, false);
        this.creatures = creatures;
        this.startingTurn = startingTurn;
    }

    public TamiyoFieldResearcherDelayedTriggeredAbility(final TamiyoFieldResearcherDelayedTriggeredAbility ability) {
        super(ability);
        this.creatures = ability.creatures;
        this.startingTurn = ability.startingTurn;
    }

    @Override
    public boolean checkEventType(GameEvent event, Game game) {
        return event instanceof DamagedEvent;
    }

    @Override
    public boolean checkTrigger(GameEvent event, Game game) {
        if (((DamagedEvent) event).isCombatDamage()) {
            Permanent damageSource = game.getPermanent(event.getSourceId());
            if (damageSource != null) {
                return creatures.contains(new MageObjectReference(damageSource, game));
            }
        }
        return false;
    }

    @Override
    public boolean isInactive(Game game) {
        return game.getActivePlayerId().equals(getControllerId()) && game.getTurnNum() != startingTurn;
    }

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

    @Override
    public String getRule() {
        return "Until your next turn, whenever either of those creatures deals combat damage, you draw a card.";
    }
}