[MH2] Implemented Chef's Kiss

Mage.Sets/src/mage/cards/c/ChefsKiss.java

@@ -0,0 +1,151 @@
+package mage.cards.c;
+
+import mage.MageItem;
+import mage.MageObjectReference;
+import mage.abilities.Ability;
+import mage.abilities.effects.OneShotEffect;
+import mage.cards.CardImpl;
+import mage.cards.CardSetInfo;
+import mage.constants.CardType;
+import mage.constants.Outcome;
+import mage.filter.FilterSpell;
+import mage.filter.predicate.Predicate;
+import mage.filter.predicate.mageobject.MageObjectReferencePredicate;
+import mage.game.Game;
+import mage.game.stack.Spell;
+import mage.game.stack.StackObject;
+import mage.target.Target;
+import mage.target.TargetSpell;
+import mage.util.RandomUtil;
+import mage.util.TargetAddress;
+import mage.util.functions.StackObjectCopyApplier;
+
+import java.util.*;
+
+/**
+ * @author TheElk801
+ */
+public final class ChefsKiss extends CardImpl {
+
+    private static final FilterSpell filter
+            = new FilterSpell("spell that targets only a single permanent or player");
+
+    static {
+        filter.add(ChefsKissPredicate.instance);
+    }
+
+    public ChefsKiss(UUID ownerId, CardSetInfo setInfo) {
+        super(ownerId, setInfo, new CardType[]{CardType.INSTANT}, "{1}{R}{R}");
+
+        // Gain control of target spell that targets only a single permanent or player. Copy it, then reselect the targets at random for the spell and the copy. The new targets can't be you or a permanent you control.
+        this.getSpellAbility().addEffect(new ChefsKissEffect());
+        this.getSpellAbility().addTarget(new TargetSpell(filter));
+    }
+
+    private ChefsKiss(final ChefsKiss card) {
+        super(card);
+    }
+
+    @Override
+    public ChefsKiss copy() {
+        return new ChefsKiss(this);
+    }
+}
+
+enum ChefsKissPredicate implements Predicate<StackObject> {
+    instance;
+
+    @Override
+    public boolean apply(StackObject input, Game game) {
+        Spell spell = (Spell) input;
+        Set<UUID> targets = new HashSet<>();
+        for (TargetAddress addr : TargetAddress.walk(spell)) {
+            Target targetInstance = addr.getTarget(spell);
+            for (UUID target : targetInstance.getTargets()) {
+                if (game.getPermanent(target) != null || game.getPlayer(target) != null) {
+                    targets.add(target);
+                }
+                if (targets.size() > 1) {
+                    return false;
+                }
+            }
+        }
+        return targets.size() == 1;
+    }
+}
+
+class ChefsKissEffect extends OneShotEffect {
+
+    ChefsKissEffect() {
+        super(Outcome.Benefit);
+        staticText = "gain control of target spell that targets only a single permanent or player. " +
+                "Copy it, then reselect the targets at random for the spell and the copy. " +
+                "The new targets can't be you or a permanent you control";
+    }
+
+    private ChefsKissEffect(final ChefsKissEffect effect) {
+        super(effect);
+    }
+
+    @Override
+    public ChefsKissEffect copy() {
+        return new ChefsKissEffect(this);
+    }
+
+    @Override
+    public boolean apply(Game game, Ability source) {
+        Spell spell = game.getSpell(source.getFirstTarget());
+        if (spell == null) {
+            return false;
+        }
+        spell.setControllerId(source.getControllerId());
+        List<UUID> possibleTargets = new ArrayList<>(game.getState().getPlayersInRange(source.getControllerId(), game));
+        possibleTargets.remove(source.getControllerId());
+        game.getBattlefield()
+                .getActivePermanents(source.getControllerId(), game)
+                .stream()
+                .filter(p -> !p.isControlledBy(source.getControllerId()))
+                .map(MageItem::getId)
+                .forEach(possibleTargets::add);
+        possibleTargets.removeIf(uuid -> !spell.canTarget(game, uuid));
+        StackObjectCopyApplier applier;
+        MageObjectReferencePredicate predicate;
+        if (possibleTargets.isEmpty()) {
+            applier = null;
+            predicate = null;
+        } else {
+            applier = new ChefsKissApplier(possibleTargets.get(RandomUtil.nextInt(possibleTargets.size())), game);
+            predicate = new MageObjectReferencePredicate(new MageObjectReference(
+                    possibleTargets.get(RandomUtil.nextInt(possibleTargets.size())), game
+            ));
+        }
+        spell.createCopyOnStack(game, source, source.getControllerId(), false, 1, applier);
+        if (predicate != null) {
+            spell.chooseNewTargets(game, source.getControllerId(), true, true, predicate);
+        }
+        return true;
+    }
+}
+
+class ChefsKissApplier implements StackObjectCopyApplier {
+
+    private final Iterator<MageObjectReferencePredicate> predicate;
+
+    ChefsKissApplier(UUID targetId, Game game) {
+        this.predicate = Arrays.asList(new MageObjectReferencePredicate(
+                new MageObjectReference(targetId, game)
+        )).iterator();
+    }
+
+    @Override
+    public void modifySpell(StackObject stackObject, Game game) {
+    }
+
+    @Override
+    public MageObjectReferencePredicate getNextPredicate() {
+        if (predicate.hasNext()) {
+            return predicate.next();
+        }
+        return null;
+    }
+}

Mage.Sets/src/mage/sets/ModernHorizons2.java

@@ -75,6 +75,7 @@ public final class ModernHorizons2 extends ExpansionSet {
         cards.add(new SetCardInfo("Chance Encounter", 277, Rarity.RARE, mage.cards.c.ChanceEncounter.class));
         cards.add(new SetCardInfo("Chatterfang, Squirrel General", 151, Rarity.MYTHIC, mage.cards.c.ChatterfangSquirrelGeneral.class));
         cards.add(new SetCardInfo("Chatterstorm", 152, Rarity.COMMON, mage.cards.c.Chatterstorm.class));
+        cards.add(new SetCardInfo("Chef's Kiss", 120, Rarity.RARE, mage.cards.c.ChefsKiss.class));
         cards.add(new SetCardInfo("Clattering Augur", 79, Rarity.UNCOMMON, mage.cards.c.ClatteringAugur.class));
         cards.add(new SetCardInfo("Chitterspitter", 153, Rarity.RARE, mage.cards.c.Chitterspitter.class));
         cards.add(new SetCardInfo("Chrome Courier", 190, Rarity.COMMON, mage.cards.c.ChromeCourier.class));

Mage/src/main/java/mage/game/stack/StackObject.java

@@ -1,5 +1,6 @@
 package mage.game.stack;
 
+import mage.MageItem;
 import mage.MageObject;
 import mage.abilities.Ability;
 import mage.constants.Zone;
@@ -28,7 +29,7 @@ public interface StackObject extends MageObject, Controllable {
 
     Ability getStackAbility();
 
-    boolean chooseNewTargets(Game game, UUID playerId, boolean forceChange, boolean onlyOneTarget, Predicate extraPredicate);
+    boolean chooseNewTargets(Game game, UUID playerId, boolean forceChange, boolean onlyOneTarget, Predicate<MageItem> extraPredicate);
 
     boolean canTarget(Game game, UUID targetId);
 

Mage/src/main/java/mage/game/stack/StackObjectImpl.java

@@ -1,5 +1,6 @@
 package mage.game.stack;
 
+import mage.MageItem;
 import mage.MageObject;
 import mage.abilities.Abilities;
 import mage.abilities.AbilitiesImpl;
@@ -219,7 +220,7 @@ public abstract class StackObjectImpl implements StackObject {
      * @return
      */
     @Override
-    public boolean chooseNewTargets(Game game, UUID targetControllerId, boolean forceChange, boolean onlyOneTarget, Predicate extraPredicate) {
+    public boolean chooseNewTargets(Game game, UUID targetControllerId, boolean forceChange, boolean onlyOneTarget, Predicate<MageItem> extraPredicate) {
         Player targetController = game.getPlayer(targetControllerId);
         if (targetController != null) {
             StringBuilder oldTargetDescription = new StringBuilder();