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package mage.sets.theros;
import java.util.LinkedList;
import java.util.UUID;
import mage.abilities.Ability;
import mage.abilities.TriggeredAbilityImpl;
import mage.abilities.common.EntersBattlefieldTriggeredAbility;
import mage.abilities.effects.OneShotEffect;
import mage.abilities.effects.common.AttachEffect;
import mage.abilities.effects.common.ExileTargetEffect;
import mage.abilities.keyword.EnchantAbility;
import mage.cards.Card;
import mage.cards.CardImpl;
import mage.constants.CardType;
import mage.constants.Outcome;
import mage.constants.Rarity;
import mage.constants.TargetController;
import mage.constants.Zone;
import mage.filter.common.FilterControlledLandPermanent;
import mage.filter.common.FilterCreaturePermanent;
import mage.filter.predicate.mageobject.SubtypePredicate;
import mage.filter.predicate.permanent.ControllerPredicate;
import mage.game.ExileZone;
import mage.game.Game;
import mage.game.events.GameEvent;
import mage.game.events.ZoneChangeEvent;
import mage.game.permanent.Permanent;
import mage.target.TargetPermanent;
import mage.target.common.TargetCreaturePermanent;
/**
* If the land Chained to the Rocks is enchanting stops being a Mountain or another player
* gains control of it, Chained to the Rocks will be put into its owner's graveyard when
* state-based actions are performed.
*
* Chained to the Rocks's ability causes a zone change with a duration, a style of ability
* introduced in Magic 2014 that's somewhat reminiscent of older cards like Oblivion Ring.
* However, unlike Oblivion Ring, cards like Chained to the Rocks have a single ability
* that creates two one-shot effects: one that exiles the creature when the ability resolves,
* and another that returns the exiled card to the battlefield immediately after Chained to
* the Rocks leaves the battlefield.
*
* If Chained to the Rocks leaves the battlefield before its triggered ability resolves,
* the target creature won't be exiled.
*
* Auras attached to the exiled creature will be put into their owners' graveyards (unless
* they have bestow). Equipment attached to the exiled creature will become unattached and
* remain on the battlefield. Any counters on the exiled creature will cease to exist.
*
* If a creature token is exiled, it ceases to exist. It won't be returned to the battlefield.
*
* The exiled card returns to the battlefield immediately after Chained to the Rocks leaves
* the battlefield. Nothing happens between the two events, including state-based actions.
*
* In a multiplayer game, if Chained to the Rocks's owner leaves the game, the exiled card
* will return to the battlefield. Because the one-shot effect that returns the card isn't
* an ability that goes on the stack, it won't cease to exist along with the leaving player's
* spells and abilities on the stack.
*
* @author LevelX2
*/
public class ChainedToTheRocks extends CardImpl {
private static final FilterControlledLandPermanent filter = new FilterControlledLandPermanent("Mountain you control");
private static final FilterCreaturePermanent filterTarget = new FilterCreaturePermanent("creature an opponent controls");
static {
filter.add(new SubtypePredicate("Mountain"));
filterTarget.add(new ControllerPredicate(TargetController.OPPONENT));
}
public ChainedToTheRocks(UUID ownerId) {
super(ownerId, 4, "Chained to the Rocks", Rarity.RARE, new CardType[]{CardType.ENCHANTMENT}, "{W}");
this.expansionSetCode = "THS";
this.subtype.add("Aura");
this.color.setWhite(true);
// Enchant Mountain you control
TargetPermanent auraTarget = new TargetPermanent(filter);
this.getSpellAbility().addTarget(auraTarget);
this.getSpellAbility().addEffect(new AttachEffect(Outcome.Exile));
Ability ability = new EnchantAbility(auraTarget.getTargetName());
this.addAbility(ability);
// When Chained to the Rocks enters the battlefield, exile target creature an opponent controls until Chained to the Rocks leaves the battlefield. (That creature returns under its owner's control.)
ability = new EntersBattlefieldTriggeredAbility(new ChainedToTheRocksEffect());
ability.addTarget(new TargetCreaturePermanent(filterTarget));
this.addAbility(ability);
// Implemented as triggered effect that doesn't uses the stack (implementation with watcher does not work correctly because if the returned creature
// has a DiesTriggeredAll ability it triggers for the battlefield leaving Chained to the Rocks, what shouldn't happen)
this.addAbility(new ChainedToTheRocksReturnExiledAbility());
}
public ChainedToTheRocks(final ChainedToTheRocks card) {
super(card);
}
@Override
public ChainedToTheRocks copy() {
return new ChainedToTheRocks(this);
}
}
class ChainedToTheRocksEffect extends OneShotEffect {
public ChainedToTheRocksEffect() {
super(Outcome.Benefit);
this.staticText = "exile target creature an opponent controls until {this} leaves the battlefield. <i>(That creature returns under its owner's control.)</i>";
}
public ChainedToTheRocksEffect(final ChainedToTheRocksEffect effect) {
super(effect);
}
@Override
public ChainedToTheRocksEffect copy() {
return new ChainedToTheRocksEffect(this);
}
@Override
public boolean apply(Game game, Ability source) {
Permanent permanent = game.getPermanent(source.getSourceId());
// If Chained to the Rocks leaves the battlefield before its triggered ability resolves,
// the target creature won't be exiled.
if (permanent != null) {
return new ExileTargetEffect(source.getSourceId(), permanent.getLogName()).apply(game, source);
}
return false;
}
}
/**
* Returns the exiled card as Chained to the Rocks leaves battlefield
* Uses no stack
* @author LevelX2
*/
class ChainedToTheRocksReturnExiledAbility extends TriggeredAbilityImpl {
public ChainedToTheRocksReturnExiledAbility() {
super(Zone.BATTLEFIELD, new ReturnExiledCreatureChainedToTheRocksEffect());
this.usesStack = false;
this.setRuleVisible(false);
}
public ChainedToTheRocksReturnExiledAbility(final ChainedToTheRocksReturnExiledAbility ability) {
super(ability);
}
@Override
public ChainedToTheRocksReturnExiledAbility copy() {
return new ChainedToTheRocksReturnExiledAbility(this);
}
@Override
public boolean checkTrigger(GameEvent event, Game game) {
if (event.getType() == GameEvent.EventType.ZONE_CHANGE && event.getTargetId().equals(this.getSourceId())) {
ZoneChangeEvent zEvent = (ZoneChangeEvent) event;
if (zEvent.getFromZone() == Zone.BATTLEFIELD) {
return true;
}
}
return false;
}
}
class ReturnExiledCreatureChainedToTheRocksEffect extends OneShotEffect {
public ReturnExiledCreatureChainedToTheRocksEffect() {
super(Outcome.Benefit);
this.staticText = "Return exiled creatures";
}
public ReturnExiledCreatureChainedToTheRocksEffect(final ReturnExiledCreatureChainedToTheRocksEffect effect) {
super(effect);
}
@Override
public ReturnExiledCreatureChainedToTheRocksEffect copy() {
return new ReturnExiledCreatureChainedToTheRocksEffect(this);
}
@Override
public boolean apply(Game game, Ability source) {
ExileZone exile = game.getExile().getExileZone(source.getSourceId());
Card sourceCard = game.getCard(source.getSourceId());
if (exile != null && sourceCard != null) {
LinkedList<UUID> cards = new LinkedList<>(exile);
for (UUID cardId : cards) {
Card card = game.getCard(cardId);
card.moveToZone(Zone.BATTLEFIELD, source.getSourceId(), game, false);
game.informPlayers(new StringBuilder(sourceCard.getName()).append(": ").append(card.getName()).append(" returns to battlefield from exile").toString());
}
exile.clear();
return true;
}
return false;
}
}