[SLD] Implement The Meep

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

@@ -0,0 +1,93 @@
+package mage.cards.t;
+
+import mage.MageInt;
+import mage.MageObject;
+import mage.abilities.Ability;
+import mage.abilities.common.AttacksTriggeredAbility;
+import mage.abilities.costs.common.PayLifeCost;
+import mage.abilities.costs.common.SacrificeTargetCost;
+import mage.abilities.effects.OneShotEffect;
+import mage.abilities.effects.common.continuous.SetBasePowerToughnessAllEffect;
+import mage.abilities.keyword.WardAbility;
+import mage.cards.CardImpl;
+import mage.cards.CardSetInfo;
+import mage.constants.*;
+import mage.filter.StaticFilters;
+import mage.game.Game;
+import mage.players.Player;
+
+import java.util.Objects;
+import java.util.UUID;
+
+/**
+ * @author TheElk801
+ */
+public final class TheMeep extends CardImpl {
+
+    public TheMeep(UUID ownerId, CardSetInfo setInfo) {
+        super(ownerId, setInfo, new CardType[]{CardType.CREATURE}, "{2}{B}");
+
+        this.supertype.add(SuperType.LEGENDARY);
+        this.subtype.add(SubType.ALIEN);
+        this.power = new MageInt(0);
+        this.toughness = new MageInt(4);
+
+        // Ward--Pay 3 life.
+        this.addAbility(new WardAbility(new PayLifeCost(3)));
+
+        // Whenever The Meep attacks, you may sacrifice another creature. If you do, creatures you control have base power and toughness X/X until end of turn, where X is the sacrificed creature's mana value.
+        this.addAbility(new AttacksTriggeredAbility(new TheMeepEffect()));
+    }
+
+    private TheMeep(final TheMeep card) {
+        super(card);
+    }
+
+    @Override
+    public TheMeep copy() {
+        return new TheMeep(this);
+    }
+}
+
+class TheMeepEffect extends OneShotEffect {
+
+    TheMeepEffect() {
+        super(Outcome.Benefit);
+        staticText = "you may sacrifice another creature. If you do, creatures you control have " +
+                "base power and toughness X/X until end of turn, where X is the sacrificed creature's mana value";
+    }
+
+    private TheMeepEffect(final TheMeepEffect effect) {
+        super(effect);
+    }
+
+    @Override
+    public TheMeepEffect copy() {
+        return new TheMeepEffect(this);
+    }
+
+    @Override
+    public boolean apply(Game game, Ability source) {
+        Player player = game.getPlayer(source.getControllerId());
+        if (player == null) {
+            return false;
+        }
+        SacrificeTargetCost cost = new SacrificeTargetCost(StaticFilters.FILTER_ANOTHER_CREATURE);
+        if (!cost.canPay(source, source, source.getControllerId(), game)
+                || !player.chooseUse(outcome, "Sacrifice another creature?", source, game)
+                || !cost.pay(source, game, source, source.getControllerId(), true)) {
+            return false;
+        }
+        int xValue = cost
+                .getPermanents()
+                .stream()
+                .filter(Objects::nonNull)
+                .mapToInt(MageObject::getManaValue)
+                .sum();
+        game.addEffect(new SetBasePowerToughnessAllEffect(
+                xValue, xValue, Duration.EndOfTurn,
+                StaticFilters.FILTER_CONTROLLED_CREATURE
+        ), source);
+        return true;
+    }
+}