[ECL] Implement Twilight Diviner

Mage.Sets/src/mage/cards/t/TwilightDiviner.java

@@ -0,0 +1,179 @@
+package mage.cards.t;
+
+import mage.MageInt;
+import mage.MageItem;
+import mage.abilities.Ability;
+import mage.abilities.BatchTriggeredAbility;
+import mage.abilities.TriggeredAbilityImpl;
+import mage.abilities.common.EntersBattlefieldTriggeredAbility;
+import mage.abilities.effects.OneShotEffect;
+import mage.abilities.effects.common.CreateTokenCopyTargetEffect;
+import mage.abilities.effects.keyword.SurveilEffect;
+import mage.cards.CardImpl;
+import mage.cards.CardSetInfo;
+import mage.constants.CardType;
+import mage.constants.Outcome;
+import mage.constants.SubType;
+import mage.constants.Zone;
+import mage.filter.FilterPermanent;
+import mage.filter.StaticFilters;
+import mage.filter.predicate.Predicates;
+import mage.filter.predicate.permanent.PermanentIdPredicate;
+import mage.game.Game;
+import mage.game.events.GameEvent;
+import mage.game.events.ZoneChangeBatchEvent;
+import mage.game.events.ZoneChangeEvent;
+import mage.game.permanent.Permanent;
+import mage.game.stack.Spell;
+import mage.players.Player;
+import mage.target.TargetPermanent;
+import mage.target.targetpointer.FixedTargets;
+import mage.util.RandomUtil;
+
+import java.util.Objects;
+import java.util.Optional;
+import java.util.Set;
+import java.util.UUID;
+import java.util.stream.Collectors;
+
+/**
+ * @author TheElk801
+ */
+public final class TwilightDiviner extends CardImpl {
+
+    public TwilightDiviner(UUID ownerId, CardSetInfo setInfo) {
+        super(ownerId, setInfo, new CardType[]{CardType.CREATURE}, "{2}{B}");
+
+        this.subtype.add(SubType.ELF);
+        this.subtype.add(SubType.CLERIC);
+        this.power = new MageInt(3);
+        this.toughness = new MageInt(3);
+
+        // When this creature enters, surveil 2.
+        this.addAbility(new EntersBattlefieldTriggeredAbility(new SurveilEffect(2)));
+
+        // Whenever one or more other creatures you control enter, if they entered or were cast from a graveyard, create a token that's a copy of one of them. This ability triggers only once each turn.
+        this.addAbility(new TwilightDivinerTriggeredAbility());
+    }
+
+    private TwilightDiviner(final TwilightDiviner card) {
+        super(card);
+    }
+
+    @Override
+    public TwilightDiviner copy() {
+        return new TwilightDiviner(this);
+    }
+}
+
+class TwilightDivinerTriggeredAbility extends TriggeredAbilityImpl implements BatchTriggeredAbility<ZoneChangeEvent> {
+
+    TwilightDivinerTriggeredAbility() {
+        super(Zone.BATTLEFIELD, new TwilightDivinerEffect());
+        setTriggerPhrase("Whenever one or more other creatures you control enter, if they entered or were cast from a graveyard, ");
+        setTriggersLimitEachTurn(1);
+    }
+
+    private TwilightDivinerTriggeredAbility(final TwilightDivinerTriggeredAbility ability) {
+        super(ability);
+    }
+
+    @Override
+    public TwilightDivinerTriggeredAbility copy() {
+        return new TwilightDivinerTriggeredAbility(this);
+    }
+
+    @Override
+    public boolean checkEventType(GameEvent event, Game game) {
+        return event.getType() == GameEvent.EventType.ZONE_CHANGE_BATCH;
+    }
+
+    @Override
+    public boolean checkTrigger(GameEvent event, Game game) {
+        Set<Permanent> permanents = this
+                .getFilteredEvents((ZoneChangeBatchEvent) event, game)
+                .stream()
+                .map(ZoneChangeEvent::getTarget)
+                .collect(Collectors.toSet());
+        if (permanents.isEmpty()) {
+            return false;
+        }
+        this.getEffects().setTargetPointer(new FixedTargets(permanents, game));
+        return true;
+    }
+
+    @Override
+    public boolean checkEvent(ZoneChangeEvent event, Game game) {
+        if (event.getToZone() != Zone.BATTLEFIELD) {
+            return false;
+        }
+        Permanent permanent = event.getTarget();
+        if (permanent == null || !StaticFilters.FILTER_OTHER_CONTROLLED_CREATURE.match(permanent, getControllerId(), this, game)) {
+            return false;
+        }
+        switch (event.getFromZone()) {
+            case GRAVEYARD:
+                return true;
+            case STACK:
+                return Optional
+                        .ofNullable(permanent)
+                        .map(MageItem::getId)
+                        .map(game::getSpellOrLKIStack)
+                        .map(Spell::getFromZone)
+                        .filter(Zone.GRAVEYARD::match)
+                        .isPresent();
+            default:
+                return false;
+        }
+    }
+}
+
+class TwilightDivinerEffect extends OneShotEffect {
+
+    TwilightDivinerEffect() {
+        super(Outcome.Benefit);
+        staticText = "create a token that's a copy of one of them";
+    }
+
+    private TwilightDivinerEffect(final TwilightDivinerEffect effect) {
+        super(effect);
+    }
+
+    @Override
+    public TwilightDivinerEffect copy() {
+        return new TwilightDivinerEffect(this);
+    }
+
+    @Override
+    public boolean apply(Game game, Ability source) {
+        Set<Permanent> permanents = getTargetPointer()
+                .getTargets(game, source)
+                .stream()
+                .map(game::getPermanent)
+                .filter(Objects::nonNull)
+                .collect(Collectors.toSet());
+        Permanent permanent;
+        switch (permanents.size()) {
+            case 0:
+                return false;
+            case 1:
+                permanent = RandomUtil.randomFromCollection(permanents);
+                break;
+            default:
+                Player player = game.getPlayer(source.getControllerId());
+                if (player == null) {
+                    return false;
+                }
+                FilterPermanent filter = new FilterPermanent("permanent to copy");
+                filter.add(Predicates.or(permanents
+                        .stream()
+                        .map(MageItem::getId)
+                        .map(PermanentIdPredicate::new)
+                        .collect(Collectors.toSet())));
+                TargetPermanent target = new TargetPermanent(filter);
+                player.choose(Outcome.Copy, target, source, game);
+                permanent = game.getPermanent(target.getFirstTarget());
+        }
+        return permanent != null && new CreateTokenCopyTargetEffect().setSavedPermanent(permanent).apply(game, source);
+    }
+}

Mage.Sets/src/mage/sets/LorwynEclipsed.java

@@ -391,6 +391,8 @@ public final class LorwynEclipsed extends ExpansionSet {
         cards.add(new SetCardInfo("Trystan, Callous Cultivator", 199, Rarity.RARE, mage.cards.t.TrystanCallousCultivator.class, NON_FULL_USE_VARIOUS));
         cards.add(new SetCardInfo("Trystan, Callous Cultivator", 291, Rarity.RARE, mage.cards.t.TrystanCallousCultivator.class, NON_FULL_USE_VARIOUS));
         cards.add(new SetCardInfo("Tweeze", 162, Rarity.COMMON, mage.cards.t.Tweeze.class));
+        cards.add(new SetCardInfo("Twilight Diviner", 122, Rarity.RARE, mage.cards.t.TwilightDiviner.class, NON_FULL_USE_VARIOUS));
+        cards.add(new SetCardInfo("Twilight Diviner", 315, Rarity.RARE, mage.cards.t.TwilightDiviner.class, NON_FULL_USE_VARIOUS));
         cards.add(new SetCardInfo("Twinflame Travelers", 248, Rarity.UNCOMMON, mage.cards.t.TwinflameTravelers.class, NON_FULL_USE_VARIOUS));
         cards.add(new SetCardInfo("Twinflame Travelers", 345, Rarity.UNCOMMON, mage.cards.t.TwinflameTravelers.class, NON_FULL_USE_VARIOUS));
         cards.add(new SetCardInfo("Unbury", 123, Rarity.UNCOMMON, mage.cards.u.Unbury.class));