[C21] Implemented Scholarship Sponsor

Mage.Sets/src/mage/cards/s/ScholarshipSponsor.java

@@ -0,0 +1,108 @@
+package mage.cards.s;
+
+import mage.MageInt;
+import mage.abilities.Ability;
+import mage.abilities.common.EntersBattlefieldTriggeredAbility;
+import mage.abilities.effects.OneShotEffect;
+import mage.cards.CardImpl;
+import mage.cards.CardSetInfo;
+import mage.cards.Cards;
+import mage.cards.CardsImpl;
+import mage.constants.CardType;
+import mage.constants.Outcome;
+import mage.constants.SubType;
+import mage.constants.Zone;
+import mage.filter.StaticFilters;
+import mage.game.Controllable;
+import mage.game.Game;
+import mage.players.Player;
+import mage.target.common.TargetCardInLibrary;
+
+import java.util.Map;
+import java.util.UUID;
+import java.util.function.Function;
+import java.util.stream.Collectors;
+
+/**
+ * @author TheElk801
+ */
+public final class ScholarshipSponsor extends CardImpl {
+
+    public ScholarshipSponsor(UUID ownerId, CardSetInfo setInfo) {
+        super(ownerId, setInfo, new CardType[]{CardType.CREATURE}, "{3}{W}");
+
+        this.subtype.add(SubType.HUMAN);
+        this.subtype.add(SubType.ADVISOR);
+        this.power = new MageInt(3);
+        this.toughness = new MageInt(3);
+
+        // When Scholarship Sponsor enters the battlefield, each player who controls fewer lands than the player who controls the most lands searches their library for a number of basic land cards less than or equal to the difference, puts those cards onto the battlefield tapped, then shuffles.
+        this.addAbility(new EntersBattlefieldTriggeredAbility(new ScholarshipSponsorEffect()));
+    }
+
+    private ScholarshipSponsor(final ScholarshipSponsor card) {
+        super(card);
+    }
+
+    @Override
+    public ScholarshipSponsor copy() {
+        return new ScholarshipSponsor(this);
+    }
+}
+
+class ScholarshipSponsorEffect extends OneShotEffect {
+
+    ScholarshipSponsorEffect() {
+        super(Outcome.Benefit);
+        staticText = "each player who controls fewer lands than the player who controls the most lands " +
+                "searches their library for a number of basic land cards less than or equal to the difference, " +
+                "puts those cards onto the battlefield tapped, then shuffles";
+    }
+
+    private ScholarshipSponsorEffect(final ScholarshipSponsorEffect effect) {
+        super(effect);
+    }
+
+    @Override
+    public ScholarshipSponsorEffect copy() {
+        return new ScholarshipSponsorEffect(this);
+    }
+
+    @Override
+    public boolean apply(Game game, Ability source) {
+        Map<UUID, Integer> playerMap = game
+                .getBattlefield()
+                .getActivePermanents(
+                        StaticFilters.FILTER_LAND, source.getControllerId(), source.getSourceId(), game
+                )
+                .stream()
+                .map(Controllable::getControllerId)
+                .collect(Collectors.toMap(Function.identity(), x -> 1, Integer::sum));
+        int maxValue = playerMap
+                .values()
+                .stream()
+                .mapToInt(x -> x)
+                .max()
+                .orElse(0);
+        if (maxValue < 1) {
+            return false;
+        }
+        for (UUID playerId : game.getState().getPlayersInRange(source.getControllerId(), game)) {
+            Player player = game.getPlayer(playerId);
+            int diff = maxValue - playerMap.getOrDefault(playerId, 0);
+            if (player == null || diff < 1) {
+                continue;
+            }
+            TargetCardInLibrary target = new TargetCardInLibrary(diff, StaticFilters.FILTER_CARD_BASIC_LAND);
+            player.searchLibrary(target, source, game);
+            Cards cards = new CardsImpl(target.getTargets());
+            cards.retainZone(Zone.LIBRARY, game);
+            player.moveCards(
+                    cards.getCards(game), Zone.BATTLEFIELD, source, game,
+                    true, false, false, null
+            );
+            player.shuffleLibrary(source, game);
+        }
+        return true;
+    }
+}

Mage.Sets/src/mage/sets/Commander2021Edition.java

@@ -247,6 +247,7 @@ public final class Commander2021Edition extends ExpansionSet {
         cards.add(new SetCardInfo("Sapling of Colfenor", 228, Rarity.RARE, mage.cards.s.SaplingOfColfenor.class));
         cards.add(new SetCardInfo("Sapseep Forest", 313, Rarity.UNCOMMON, mage.cards.s.SapseepForest.class));
         cards.add(new SetCardInfo("Scavenger Grounds", 314, Rarity.RARE, mage.cards.s.ScavengerGrounds.class));
+        cards.add(new SetCardInfo("Scholarship Sponsor", 22, Rarity.RARE, mage.cards.s.ScholarshipSponsor.class));
         cards.add(new SetCardInfo("Scrap Trawler", 260, Rarity.RARE, mage.cards.s.ScrapTrawler.class));
         cards.add(new SetCardInfo("Sculpting Steel", 261, Rarity.RARE, mage.cards.s.SculptingSteel.class));
         cards.add(new SetCardInfo("Secluded Steppe", 315, Rarity.COMMON, mage.cards.s.SecludedSteppe.class));

Mage/src/main/java/mage/cards/Cards.java

@@ -1,5 +1,6 @@
 package mage.cards;
 
+import mage.constants.Zone;
 import mage.filter.FilterCard;
 import mage.game.Game;
 
@@ -42,4 +43,6 @@ public interface Cards extends Set<UUID>, Serializable {
     int count(FilterCard filter, UUID sourceId, UUID playerId, Game game);
 
     Cards copy();
+
+    void retainZone(Zone zone, Game game);
 }

Mage/src/main/java/mage/cards/CardsImpl.java

@@ -2,6 +2,7 @@ package mage.cards;
 
 import mage.MageItem;
 import mage.MageObject;
+import mage.constants.Zone;
 import mage.filter.FilterCard;
 import mage.game.Game;
 import mage.util.RandomUtil;
@@ -206,4 +207,8 @@ public class CardsImpl extends LinkedHashSet<UUID> implements Cards, Serializabl
         return cards.values();
     }
 
+    @Override
+    public void retainZone(Zone zone, Game game) {
+        removeIf(uuid -> game.getState().getZone(uuid) != zone);
+    }
 }