Package mage.sets.eventide

Source Code of mage.sets.eventide.ActivatedAbilityUsedThisTurnWatcher

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package mage.sets.eventide;

import java.util.HashSet;
import java.util.Set;
import java.util.UUID;
import mage.MageInt;
import mage.abilities.Ability;
import mage.abilities.condition.Condition;
import mage.abilities.costs.mana.ManaCostsImpl;
import mage.abilities.decorator.ConditionalActivatedAbility;
import mage.abilities.effects.Effect;
import mage.abilities.effects.common.continious.BoostSourceEffect;
import mage.abilities.effects.common.continious.GainAbilitySourceEffect;
import mage.abilities.keyword.FlyingAbility;
import mage.cards.CardImpl;
import mage.constants.AbilityType;
import mage.constants.CardType;
import mage.constants.Duration;
import mage.constants.Rarity;
import mage.constants.WatcherScope;
import mage.constants.Zone;
import mage.filter.common.FilterCreaturePermanent;
import mage.filter.predicate.mageobject.AbilityPredicate;
import mage.game.Game;
import mage.game.events.GameEvent;
import mage.game.stack.StackAbility;
import mage.game.stack.StackObject;
import mage.watchers.Watcher;

/**
*
* @author jeffwadsworth
*
*/
public class GroundlingPouncer extends CardImpl {
   
    private String rule = "{this} gets +1/+3 and gains flying until end of turn. Activate this ability only once each turn and only if an opponent controls a creature with flying.";

    public GroundlingPouncer(UUID ownerId) {
        super(ownerId, 154, "Groundling Pouncer", Rarity.UNCOMMON, new CardType[]{CardType.CREATURE}, "{1}{G/U}");
        this.expansionSetCode = "EVE";
        this.subtype.add("Faerie");

        this.color.setBlue(true);
        this.color.setGreen(true);
        this.power = new MageInt(2);
        this.toughness = new MageInt(1);

        // {GU}: Groundling Pouncer gets +1/+3 and gains flying until end of turn. Activate this ability only once each turn and only if an opponent controls a creature with flying.
        Condition condition = new GroundingPouncerCondition();
        Effect effect = new BoostSourceEffect(1, 3, Duration.EndOfTurn);
        Effect effect2 = new GainAbilitySourceEffect(FlyingAbility.getInstance(), Duration.EndOfTurn, false, true);
        Ability ability = new ConditionalActivatedAbility(Zone.BATTLEFIELD, effect, new ManaCostsImpl("{G/U}"), condition, rule);
        ability.addEffect(effect2);
        this.addAbility(ability);
        this.addWatcher(new ActivatedAbilityUsedThisTurnWatcher());

    }

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

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

class GroundingPouncerCondition implements Condition {

    private static final FilterCreaturePermanent filter = new FilterCreaturePermanent();

    static {
        filter.add(new AbilityPredicate(FlyingAbility.class));
    }

    @Override
    public boolean apply(Game game, Ability source) {
        ActivatedAbilityUsedThisTurnWatcher watcher = (ActivatedAbilityUsedThisTurnWatcher) game.getState().getWatchers().get("ActivatedAbilityUsedThisTurn");
        for (UUID opponentId : game.getOpponents(source.getControllerId())) {
            if (game.getBattlefield().countAll(filter, opponentId, game) > 0 && !watcher.getActivatedThisTurn().contains(source.getSourceId())) {
                return true;
            }
        }
        return false;
    }

    @Override
    public String toString() {
        return "once each turn and only if an opponent controls a flying creature";
    }
}

class ActivatedAbilityUsedThisTurnWatcher extends Watcher {

    public Set<UUID> activatedThisTurn = new HashSet<UUID>();

    public ActivatedAbilityUsedThisTurnWatcher() {
        super("ActivatedAbilityUsedThisTurn", WatcherScope.GAME);
    }

    public ActivatedAbilityUsedThisTurnWatcher(final ActivatedAbilityUsedThisTurnWatcher watcher) {
        super(watcher);
        this.activatedThisTurn.addAll(watcher.activatedThisTurn);
    }

    @Override
    public void watch(GameEvent event, Game game) {
        if (event.getType() == GameEvent.EventType.ACTIVATED_ABILITY) {
            StackObject stackObject = game.getStack().getStackObject(event.getTargetId());
            if (stackObject != null) {
                StackAbility stackAbility = (StackAbility) game.getStack().getStackObject(event.getTargetId());
                if (stackAbility != null && stackAbility.getAbilityType() == AbilityType.ACTIVATED) {
                    this.activatedThisTurn.add(stackAbility.getOriginalId());
                }
            }
        }
    }

    public Set<UUID> getActivatedThisTurn() {
        return this.activatedThisTurn;
    }

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

    @Override
    public void reset() {
        super.reset();
        this.activatedThisTurn.clear();
    }
}
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