[CMR] Implemented Kodama of the East Tree

Mage.Sets/src/mage/cards/k/KodamaOfTheEastTree.java

@@ -0,0 +1,176 @@
+package mage.cards.k;
+
+import mage.MageInt;
+import mage.MageObjectReference;
+import mage.abilities.Ability;
+import mage.abilities.common.EntersBattlefieldAllTriggeredAbility;
+import mage.abilities.condition.Condition;
+import mage.abilities.decorator.ConditionalInterveningIfTriggeredAbility;
+import mage.abilities.effects.Effect;
+import mage.abilities.effects.OneShotEffect;
+import mage.abilities.keyword.PartnerAbility;
+import mage.abilities.keyword.ReachAbility;
+import mage.cards.Card;
+import mage.cards.CardImpl;
+import mage.cards.CardSetInfo;
+import mage.constants.*;
+import mage.filter.FilterCard;
+import mage.filter.FilterPermanent;
+import mage.filter.common.FilterControlledPermanent;
+import mage.filter.common.FilterPermanentCard;
+import mage.filter.predicate.mageobject.ConvertedManaCostPredicate;
+import mage.filter.predicate.permanent.AnotherPredicate;
+import mage.game.Game;
+import mage.game.events.GameEvent;
+import mage.game.permanent.Permanent;
+import mage.players.Player;
+import mage.target.common.TargetCardInHand;
+import mage.watchers.Watcher;
+
+import java.util.*;
+
+/**
+ * @author TheElk801
+ */
+public final class KodamaOfTheEastTree extends CardImpl {
+
+    private static final FilterPermanent filter = new FilterControlledPermanent();
+
+    static {
+        filter.add(AnotherPredicate.instance);
+    }
+
+    public KodamaOfTheEastTree(UUID ownerId, CardSetInfo setInfo) {
+        super(ownerId, setInfo, new CardType[]{CardType.CREATURE}, "{4}{G}{G}");
+
+        this.addSuperType(SuperType.LEGENDARY);
+        this.subtype.add(SubType.SPIRIT);
+        this.power = new MageInt(6);
+        this.toughness = new MageInt(6);
+
+        // Reach
+        this.addAbility(ReachAbility.getInstance());
+
+        // Whenever another permanent enters the battlefield under your control, if it wasn't put onto the battlefield with this ability, you may put a permanent card with equal or lesser converted mana cost from your hand onto the battlefield.
+        this.addAbility(new ConditionalInterveningIfTriggeredAbility(
+                new EntersBattlefieldAllTriggeredAbility(new KodamaOfTheEastTreeEffect(), filter),
+                KodamaOfTheEastTreeCondition.instance, "Whenever another permanent enters the battlefield " +
+                "under your control, if it wasn't put onto the battlefield with this ability, you may put " +
+                "a permanent card with equal or lesser converted mana cost from your hand onto the battlefield."
+        ), new KodamaOfTheEastTreeWatcher());
+
+        // Partner
+        this.addAbility(PartnerAbility.getInstance());
+    }
+
+    private KodamaOfTheEastTree(final KodamaOfTheEastTree card) {
+        super(card);
+    }
+
+    @Override
+    public KodamaOfTheEastTree copy() {
+        return new KodamaOfTheEastTree(this);
+    }
+}
+
+enum KodamaOfTheEastTreeCondition implements Condition {
+    instance;
+
+    @Override
+    public boolean apply(Game game, Ability source) {
+        Permanent permanent = null;
+        for (Effect effect : source.getEffects()) {
+            Object obj = effect.getValue("permanentEnteringBattlefield");
+            if (obj instanceof Permanent) {
+                permanent = (Permanent) obj;
+                break;
+            }
+        }
+        KodamaOfTheEastTreeWatcher watcher = game.getState().getWatcher(KodamaOfTheEastTreeWatcher.class);
+        return watcher != null && !watcher.checkPermanent(permanent, source, game);
+    }
+}
+
+class KodamaOfTheEastTreeEffect extends OneShotEffect {
+
+    KodamaOfTheEastTreeEffect() {
+        super(Outcome.Benefit);
+    }
+
+    private KodamaOfTheEastTreeEffect(final KodamaOfTheEastTreeEffect effect) {
+        super(effect);
+    }
+
+    @Override
+    public KodamaOfTheEastTreeEffect copy() {
+        return new KodamaOfTheEastTreeEffect(this);
+    }
+
+    @Override
+    public boolean apply(Game game, Ability source) {
+        Object obj = this.getValue("permanentEnteringBattlefield");
+        if (!(obj instanceof Permanent)) {
+            return false;
+        }
+        Permanent permanent = (Permanent) obj;
+        Player player = game.getPlayer(source.getControllerId());
+        if (player == null) {
+            return false;
+        }
+        FilterCard filter = new FilterPermanentCard(
+                "a permanent card with converted mana cost " + permanent.getConvertedManaCost() + " or less"
+        );
+        filter.add(new ConvertedManaCostPredicate(
+                ComparisonType.FEWER_THAN, permanent.getConvertedManaCost() + 1
+        ));
+        TargetCardInHand target = new TargetCardInHand(filter);
+        if (!target.canChoose(source.getSourceId(), source.getControllerId(), game)
+                || !player.chooseUse(outcome, "Put a permanent card onto the battlefield?", source, game)) {
+            return false;
+        }
+        player.choose(outcome, target, source.getSourceId(), game);
+        Card card = game.getCard(target.getFirstTarget());
+        if (card == null) {
+            return false;
+        }
+        player.moveCards(card, Zone.BATTLEFIELD, source, game);
+        Permanent otherPermanent = game.getPermanent(card.getId());
+        if (otherPermanent == null) {
+            return false;
+        }
+        KodamaOfTheEastTreeWatcher watcher = game.getState().getWatcher(KodamaOfTheEastTreeWatcher.class);
+        if (watcher != null) {
+            watcher.addPermanent(otherPermanent, source, game);
+        }
+        return true;
+    }
+}
+
+class KodamaOfTheEastTreeWatcher extends Watcher {
+
+    private final Map<String, Set<MageObjectReference>> morMap = new HashMap<>();
+
+    KodamaOfTheEastTreeWatcher() {
+        super(WatcherScope.GAME);
+    }
+
+    @Override
+    public void watch(GameEvent event, Game game) {
+    }
+
+    void addPermanent(Permanent permanent, Ability source, Game game) {
+        morMap.computeIfAbsent(getKey(source, game), x -> new HashSet<>())
+                .add(new MageObjectReference(permanent, game));
+    }
+
+    boolean checkPermanent(Permanent permanent, Ability source, Game game) {
+        return morMap
+                .computeIfAbsent(getKey(source, game), x -> new HashSet<>())
+                .stream()
+                .anyMatch(mor -> mor.refersTo(permanent, game));
+    }
+
+    private static String getKey(Ability source, Game game) {
+        return "" + source.getSourceId() + game.getState().getZoneChangeCounter(source.getSourceId());
+    }
+}

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

@@ -102,6 +102,7 @@ public final class CommanderLegends extends ExpansionSet {
         cards.add(new SetCardInfo("Kinsbaile Courier", 29, Rarity.COMMON, mage.cards.k.KinsbaileCourier.class));
         cards.add(new SetCardInfo("Kitesail Corsair", 76, Rarity.COMMON, mage.cards.k.KitesailCorsair.class));
         cards.add(new SetCardInfo("Kitesail Skirmisher", 77, Rarity.COMMON, mage.cards.k.KitesailSkirmisher.class));
+        cards.add(new SetCardInfo("Kodama of the East Tree", 239, Rarity.RARE, mage.cards.k.KodamaOfTheEastTree.class));
         cards.add(new SetCardInfo("Kor Cartographer", 30, Rarity.COMMON, mage.cards.k.KorCartographer.class));
         cards.add(new SetCardInfo("Krark, the Thumbless", 189, Rarity.RARE, mage.cards.k.KrarkTheThumbless.class));
         cards.add(new SetCardInfo("Kydele, Chosen of Kruphix", 524, Rarity.MYTHIC, mage.cards.k.KydeleChosenOfKruphix.class));