[MIR] Implement Jabari's Influence (#11550)

Mage.Sets/src/mage/cards/j/JabarisInfluence.java

@@ -0,0 +1,107 @@
+package mage.cards.j;
+
+import mage.MageObjectReference;
+import mage.ObjectColor;
+import mage.abilities.common.CastOnlyDuringPhaseStepSourceAbility;
+import mage.abilities.condition.common.AfterCombatCondition;
+import mage.abilities.effects.common.continuous.GainControlTargetEffect;
+import mage.abilities.effects.common.counter.AddCountersTargetEffect;
+import mage.cards.CardImpl;
+import mage.cards.CardSetInfo;
+import mage.constants.CardType;
+import mage.constants.Duration;
+import mage.constants.WatcherScope;
+import mage.counters.CounterType;
+import mage.filter.common.FilterCreaturePermanent;
+import mage.filter.predicate.ObjectSourcePlayer;
+import mage.filter.predicate.ObjectSourcePlayerPredicate;
+import mage.filter.predicate.Predicates;
+import mage.filter.predicate.mageobject.ColorPredicate;
+import mage.game.Game;
+import mage.game.events.GameEvent;
+import mage.game.permanent.Permanent;
+import mage.target.common.TargetCreaturePermanent;
+import mage.watchers.Watcher;
+
+import java.util.*;
+
+/**
+ * @author Cguy7777
+ */
+public final class JabarisInfluence extends CardImpl {
+
+    private static final FilterCreaturePermanent filter = new FilterCreaturePermanent("nonartifact, nonblack creature that attacked you this turn");
+
+    static {
+        filter.add(Predicates.not(CardType.ARTIFACT.getPredicate()));
+        filter.add(Predicates.not(new ColorPredicate(ObjectColor.BLACK)));
+        filter.add(JabarisInfluencePredicate.instance);
+    }
+
+    public JabarisInfluence(UUID ownerId, CardSetInfo setInfo) {
+        super(ownerId, setInfo, new CardType[]{CardType.INSTANT}, "{3}{W}{W}");
+
+        // Cast Jabari's Influence only after combat.
+        this.addAbility(new CastOnlyDuringPhaseStepSourceAbility(
+                null, null, AfterCombatCondition.instance, "Cast this spell only after combat"));
+
+        // Gain control of target nonartifact, nonblack creature that attacked you this turn and put a -1/-0 counter on it.
+        this.getSpellAbility().addEffect(new GainControlTargetEffect(Duration.Custom));
+        this.getSpellAbility().addEffect(new AddCountersTargetEffect(CounterType.M1M0.createInstance()).setText("and put a -1/-0 counter on it"));
+        this.getSpellAbility().addTarget(new TargetCreaturePermanent(filter));
+        this.getSpellAbility().addWatcher(new JabarisInfluenceWatcher());
+    }
+
+    private JabarisInfluence(final JabarisInfluence card) {
+        super(card);
+    }
+
+    @Override
+    public JabarisInfluence copy() {
+        return new JabarisInfluence(this);
+    }
+}
+
+enum JabarisInfluencePredicate implements ObjectSourcePlayerPredicate<Permanent> {
+    instance;
+
+    @Override
+    public boolean apply(ObjectSourcePlayer<Permanent> input, Game game) {
+        Permanent permanent = input.getObject();
+
+        JabarisInfluenceWatcher watcher = game.getState().getWatcher(JabarisInfluenceWatcher.class);
+        return watcher.checkIfCreatureAttackedYouThisTurn(permanent, input.getPlayerId(), game);
+    }
+}
+
+class JabarisInfluenceWatcher extends Watcher {
+
+    private final Map<MageObjectReference, Set<UUID>> attackedThisTurnCreatures = new HashMap<>();
+
+    public JabarisInfluenceWatcher() {
+        super(WatcherScope.GAME);
+    }
+
+    @Override
+    public void watch(GameEvent event, Game game) {
+        if (event.getType() == GameEvent.EventType.ATTACKER_DECLARED) {
+            Permanent permanent = game.getPermanent(event.getSourceId());
+            if (permanent != null) {
+                attackedThisTurnCreatures.computeIfAbsent(
+                        new MageObjectReference(event.getSourceId(), game), u -> new HashSet<>()
+                ).add(event.getTargetId());
+            }
+        }
+    }
+
+    boolean checkIfCreatureAttackedYouThisTurn(Permanent permanent, UUID playerId, Game game) {
+        MageObjectReference mor = new MageObjectReference(permanent, game);
+        return attackedThisTurnCreatures.containsKey(mor) && attackedThisTurnCreatures.get(mor).contains(playerId);
+    }
+
+    @Override
+    public void reset() {
+        super.reset();
+        attackedThisTurnCreatures.clear();
+    }
+}

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

@@ -177,6 +177,7 @@ public final class Mirage extends ExpansionSet {
         cards.add(new SetCardInfo("Island", 337, Rarity.LAND, mage.cards.basiclands.Island.class, NON_FULL_USE_VARIOUS));
         cards.add(new SetCardInfo("Island", 338, Rarity.LAND, mage.cards.basiclands.Island.class, NON_FULL_USE_VARIOUS));
         cards.add(new SetCardInfo("Ivory Charm", 23, Rarity.COMMON, mage.cards.i.IvoryCharm.class));
+        cards.add(new SetCardInfo("Jabari's Influence", 24, Rarity.RARE, mage.cards.j.JabarisInfluence.class));
         cards.add(new SetCardInfo("Jolrael's Centaur", 222, Rarity.COMMON, mage.cards.j.JolraelsCentaur.class));
         cards.add(new SetCardInfo("Jolt", 70, Rarity.COMMON, mage.cards.j.Jolt.class));
         cards.add(new SetCardInfo("Jungle Patrol", 223, Rarity.RARE, mage.cards.j.JunglePatrol.class));