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Offering keyword ability
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Mage/src/mage/abilities/keyword/OfferingAbility.java
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Mage/src/mage/abilities/keyword/OfferingAbility.java
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/*
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* Copyright 2010 BetaSteward_at_googlemail.com. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without modification, are
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* permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice, this list of
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* conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright notice, this list
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* of conditions and the following disclaimer in the documentation and/or other materials
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* provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY BetaSteward_at_googlemail.com ``AS IS'' AND ANY EXPRESS OR IMPLIED
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* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
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* FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL BetaSteward_at_googlemail.com OR
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
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* ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
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* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* The views and conclusions contained in the software and documentation are those of the
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* authors and should not be interpreted as representing official policies, either expressed
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* or implied, of BetaSteward_at_googlemail.com.
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*/
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package mage.abilities.keyword;
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import java.util.UUID;
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import mage.Constants;
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import mage.Constants.AsThoughEffectType;
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import mage.Constants.Duration;
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import mage.Constants.Outcome;
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import mage.Constants.Zone;
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import mage.abilities.Ability;
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import mage.abilities.SpellAbility;
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import mage.abilities.StaticAbility;
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import mage.abilities.costs.mana.ManaCost;
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import mage.abilities.costs.mana.ManaCosts;
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import mage.abilities.effects.AsThoughEffectImpl;
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import mage.abilities.effects.CostModificationEffectImpl;
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import mage.cards.Card;
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import mage.filter.common.FilterControlledCreaturePermanent;
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import mage.filter.predicate.mageobject.SubtypePredicate;
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import mage.game.Game;
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import mage.game.permanent.Permanent;
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import mage.players.Player;
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import mage.target.Target;
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import mage.target.common.TargetControlledCreaturePermanent;
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import mage.util.CardUtil;
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/**
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*
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* 702.46. Offering #
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* 702.46a Offering is a static ability of a card that functions in any zone from which
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* the card can be cast. "[Subtype] offering" means "You may cast this card any time you
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* could cast an instant by sacrificing a [subtype] permanent. If you do, the total cost
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* to cast this card is reduced by the sacrificed permanent's mana cost." #
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*
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* 702.46b The permanent is sacrificed at the same time the spell is announced (see rule 601.2a).
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* The total cost of the spell is reduced by the sacrificed permanent's mana cost (see rule 601.2e). #
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*
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* 702.46c Generic mana in the sacrificed permanent's mana cost reduces generic mana
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* in the total cost to cast the card with offering. Colored mana in the sacrificed
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* permanent's mana cost reduces mana of the same color in the total cost to cast the
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* card with offering. Colored mana in the sacrificed permanent's mana cost that doesn't
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* match colored mana in the colored mana cost of the card with offering, or is in excess
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* of the card's colored mana cost, reduces that much generic mana in the total cost. #
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*
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* @param card card that gains offering
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* @param subtype name of the subtype that can be offered
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*
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* @author LevelX2
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*/
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public class OfferingAbility extends StaticAbility<OfferingAbility> {
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private FilterControlledCreaturePermanent filter = new FilterControlledCreaturePermanent();
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private Boolean creatureOffered = false;
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public OfferingAbility(String subtype) {
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super(Zone.ALL, null);
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filter.add(new SubtypePredicate(subtype));
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filter.setMessage(subtype);
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this.addEffect(new OfferingAsThoughEffect());
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}
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public OfferingAbility(OfferingAbility ability) {
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super(ability);
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this.filter = ability.filter;
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this.creatureOffered = ability.creatureOffered;
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}
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@Override
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public OfferingAbility copy() {
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return new OfferingAbility(this);
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}
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public FilterControlledCreaturePermanent getFilter() {
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return filter;
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}
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public void setCreatureOffered(Boolean creatureOffered) {
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this.creatureOffered = creatureOffered;
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}
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public Boolean isCreatureOffered() {
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return creatureOffered;
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}
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@Override
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public String getRule(boolean all) {
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String subtype = filter.getMessage();
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return subtype + " offering <i>(You may cast this card any time you could cast an instant by sacrificing a " + subtype + " and paying the difference in mana costs between this and the sacrificed " + subtype + ". Mana cost includes color.)</i>";
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}
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}
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class OfferingAsThoughEffect extends AsThoughEffectImpl<OfferingAsThoughEffect> {
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public OfferingAsThoughEffect() {
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super(AsThoughEffectType.CAST, Duration.EndOfGame, Outcome.Benefit);
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}
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public OfferingAsThoughEffect(final OfferingAsThoughEffect effect) {
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super(effect);
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}
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@Override
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public boolean apply(Game game, Ability source) {
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return true;
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}
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@Override
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public OfferingAsThoughEffect copy() {
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return new OfferingAsThoughEffect(this);
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}
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@Override
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public boolean applies(UUID sourceId, Ability source, Game game) {
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if (sourceId.equals(source.getSourceId())) {
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Card card = game.getCard(sourceId);
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if (!card.getOwnerId().equals(source.getControllerId())) {
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return false;
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}
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// because can activate is always called twice, result from first call will be used
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Object object = game.getState().getValue("offering_" + card.getId());
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if (object != null && object.equals(true)) {
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Object alreadyConfirmed = game.getState().getValue("offering_ok_" + card.getId());
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game.getState().setValue("offering_" + card.getId(), null);
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game.getState().setValue("offering_ok_" + card.getId(), null);
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if (alreadyConfirmed != null) {
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return true;
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}
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return false;
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} else {
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// first call -> remove previous Ids
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game.getState().setValue("offering_Id_" + card.getId(), null);
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}
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if (game.getBattlefield().count(((OfferingAbility) source).getFilter(), source.getControllerId(), game) > 0) {
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FilterControlledCreaturePermanent filter = ((OfferingAbility) source).getFilter();
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Card spellToCast = game.getCard(source.getSourceId());
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Player player = game.getPlayer(source.getControllerId());
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if (player != null && player.chooseUse(Outcome.Benefit, "Offer a " + filter.getMessage() + " to cast " + spellToCast.getName() + "?", game)) {
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Target target = new TargetControlledCreaturePermanent(1,1,filter,true);
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player.chooseTarget(Outcome.Sacrifice, target, source, game);
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if (!target.isChosen()) {
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return false;
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}
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game.getState().setValue("offering_" + card.getId(), true);
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Permanent offer = game.getPermanent(target.getFirstTarget());
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if (offer != null) {
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UUID activationId = UUID.randomUUID();
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OfferingCostReductionEffect effect = new OfferingCostReductionEffect(spellToCast.getSpellAbility().getId(), offer.getSpellAbility().getManaCosts(), activationId);
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game.addEffect(effect, source);
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offer.sacrifice(source.getSourceId(), game);
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game.getState().setValue("offering_ok_" + card.getId(), true);
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game.getState().setValue("offering_Id_" + card.getId(), activationId);
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return true;
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}
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} else {
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if (game.canPlaySorcery(source.getControllerId())) {
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game.getState().setValue("offering_" + card.getId(), true);
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}
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}
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}
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}
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return false;
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}
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}
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class OfferingCostReductionEffect extends CostModificationEffectImpl<OfferingCostReductionEffect> {
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private UUID spellAbilityId;
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private UUID activationId;
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private ManaCosts<ManaCost> manaCostsToReduce;
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OfferingCostReductionEffect (UUID spellAbilityId, ManaCosts<ManaCost> manaCostsToReduce, UUID activationId) {
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super(Constants.Duration.OneUse, Constants.Outcome.Benefit);
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this.spellAbilityId = spellAbilityId;
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this.manaCostsToReduce = manaCostsToReduce;
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this.activationId = activationId;
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staticText = "mana costs reduction from offering";
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}
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OfferingCostReductionEffect(OfferingCostReductionEffect effect) {
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super(effect);
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this.spellAbilityId = effect.spellAbilityId;
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this.manaCostsToReduce = effect.manaCostsToReduce;
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this.activationId = effect.activationId;
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}
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@Override
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public boolean apply(Game game, Ability source, Ability abilityToModify) {
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CardUtil.adjustCost((SpellAbility) abilityToModify, manaCostsToReduce);
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this.used = true;
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return true;
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}
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@Override
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public boolean applies(Ability abilityToModify, Ability source, Game game) {
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if (abilityToModify.getId().equals(spellAbilityId) && abilityToModify instanceof SpellAbility) {
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Card card = game.getCard(source.getSourceId());
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if (card != null) {
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Object object = game.getState().getValue("offering_Id_" + card.getId());
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if (object != null && ((UUID) object).equals(this.activationId)) {
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return true;
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}
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}
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// no or other id, this effect is no longer valid
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this.used = true;
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}
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return false;
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}
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@Override
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public OfferingCostReductionEffect copy() {
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return new OfferingCostReductionEffect(this);
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}
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}
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@ -113,6 +113,99 @@ public class CardUtil {
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spellAbility.getManaCostsToPay().addAll(adjustedCost);
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}
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/**
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* Adjusts spell or ability cost to be paid by colored and generic mana.
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*
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* @param spellAbility
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* @param mana costs to reduce
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*/
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public static void adjustCost(SpellAbility spellAbility, ManaCosts<ManaCost> manaCostsToReduce) {
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ManaCosts<ManaCost> previousCost = spellAbility.getManaCostsToPay();
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ManaCosts<ManaCost> adjustedCost = new ManaCostsImpl<ManaCost>();
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Mana reduceMana = new Mana();
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for (ManaCost manaCost : manaCostsToReduce) {
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reduceMana.add(manaCost.getMana());
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}
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// subtract colored mana
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for (ManaCost newManaCost : previousCost) {
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Mana mana = newManaCost.getMana();
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if (mana.getColorless() > 0) {
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continue;
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}
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if (mana.getBlack() > 0 && reduceMana.getBlack() > 0) {
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if (reduceMana.getBlack() > mana.getBlack()) {
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reduceMana.setBlack(reduceMana.getBlack()-mana.getBlack());
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mana.setBlack(0);
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} else {
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mana.setBlack(mana.getBlack()-reduceMana.getBlack());
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reduceMana.setBlack(0);
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}
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}
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if (mana.getRed() > 0 && reduceMana.getRed() > 0) {
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if (reduceMana.getRed() > mana.getRed()) {
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reduceMana.setRed(reduceMana.getRed()-mana.getRed());
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mana.setRed(0);
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} else {
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mana.setRed(mana.getRed()-reduceMana.getRed());
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reduceMana.setRed(0);
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}
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}
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if (mana.getBlue() > 0 && reduceMana.getBlue() > 0) {
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if (reduceMana.getBlue() > mana.getBlue()) {
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reduceMana.setBlue(reduceMana.getBlue()-mana.getBlue());
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mana.setBlue(0);
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} else {
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mana.setBlue(mana.getBlue()-reduceMana.getBlue());
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reduceMana.setBlue(0);
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}
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}
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if (mana.getGreen() > 0 && reduceMana.getGreen() > 0) {
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if (reduceMana.getGreen() > mana.getGreen()) {
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reduceMana.setGreen(reduceMana.getGreen()-mana.getGreen());
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mana.setGreen(0);
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} else {
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mana.setGreen(mana.getGreen()-reduceMana.getGreen());
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reduceMana.setGreen(0);
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}
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}
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if (mana.getWhite() > 0 && reduceMana.getWhite() > 0) {
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if (reduceMana.getWhite() > mana.getWhite()) {
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reduceMana.setWhite(reduceMana.getWhite()-mana.getWhite());
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mana.setWhite(0);
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} else {
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mana.setWhite(mana.getWhite()-reduceMana.getWhite());
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reduceMana.setWhite(0);
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}
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}
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if (mana.count() > 0) {
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adjustedCost.add(newManaCost);
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}
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}
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// subtract colorless mana, use all mana that is left
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int reduceAmount = reduceMana.count();
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for (ManaCost newManaCost : previousCost) {
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Mana mana = newManaCost.getMana();
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if (mana.getColorless() == 0) {
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continue;
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}
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if (mana.getColorless() > 0 && reduceAmount > 0) {
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if (reduceAmount > mana.getColorless()) {
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reduceAmount -= mana.getColorless();
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mana.setColorless(0);
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} else {
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mana.setColorless(mana.getColorless() - reduceAmount);
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reduceAmount = 0;
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}
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}
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if (mana.count() > 0) {
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adjustedCost.add(0, new GenericManaCost(mana.count()));
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}
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}
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spellAbility.getManaCostsToPay().clear();
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spellAbility.getManaCostsToPay().addAll(adjustedCost);
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}
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/**
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* Returns function that copies params\abilities from one card to another.
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*
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