Implement [BLB] Rottenmouth Viper (#12718)

Mage.Sets/src/mage/cards/r/RottenmouthViper.java

@@ -0,0 +1,164 @@
+package mage.cards.r;
+
+import java.util.UUID;
+import mage.MageInt;
+import mage.abilities.Ability;
+import mage.abilities.SpellAbility;
+import mage.abilities.common.EntersBattlefieldOrAttacksSourceTriggeredAbility;
+import mage.abilities.common.SimpleStaticAbility;
+import mage.abilities.costs.Cost;
+import mage.abilities.costs.common.SacrificeXTargetCost;
+import mage.abilities.dynamicvalue.DynamicValue;
+import mage.abilities.dynamicvalue.common.CountersSourceCount;
+import mage.abilities.effects.OneShotEffect;
+import mage.abilities.effects.common.cost.CostModificationEffectImpl;
+import mage.abilities.effects.common.counter.AddCountersSourceEffect;
+import mage.constants.*;
+import mage.cards.CardImpl;
+import mage.cards.CardSetInfo;
+import mage.counters.CounterType;
+import mage.filter.StaticFilters;
+import mage.game.Game;
+import mage.game.permanent.Permanent;
+import mage.players.Player;
+import mage.target.Target;
+import mage.target.TargetPermanent;
+import mage.util.CardUtil;
+
+/**
+ *
+ * @author Momo2907
+ */
+public final class RottenmouthViper extends CardImpl {
+
+    public RottenmouthViper(UUID ownerId, CardSetInfo setInfo) {
+        super(ownerId, setInfo, new CardType[]{CardType.CREATURE}, "{5}{B}");
+        
+        this.subtype.add(SubType.ELEMENTAL);
+        this.subtype.add(SubType.SNAKE);
+        this.power = new MageInt(6);
+        this.toughness = new MageInt(6);
+
+        // As an additional cost to cast this spell, you may sacrifice any number of nonland permanents. This spell costs {1} less to cast for each permanent sacrificed this way.
+        Cost cost = new SacrificeXTargetCost(StaticFilters.FILTER_CONTROLLED_PERMANENT_NON_LAND, true);
+        cost.setText("you may sacrifice any number of nonland permanents. " +
+                "This spell costs {1} less to cast for each permanent sacrificed this way");
+        this.getSpellAbility().addCost(cost);
+        this.addAbility(new SimpleStaticAbility(Zone.ALL, new RottenmouthViperCostReductionEffect()));
+
+        // Whenever Rottenmouth Viper enters or attacks, put a blight counter on it. Then for each blight counter on it, each opponent loses 4 life unless that player sacrifices a nonland permanent or discards a card.
+        Ability ability = new EntersBattlefieldOrAttacksSourceTriggeredAbility(
+                new AddCountersSourceEffect(CounterType.BLIGHT.createInstance())
+        );
+        ability.addEffect(new RottenmouthViperEffect(new CountersSourceCount(CounterType.BLIGHT)));
+        this.addAbility(ability);
+    }
+
+    private RottenmouthViper(final RottenmouthViper card) {
+        super(card);
+    }
+
+    @Override
+    public RottenmouthViper copy() {
+        return new RottenmouthViper(this);
+    }
+}
+
+class RottenmouthViperEffect extends OneShotEffect{
+
+    DynamicValue blightCounterAmount;
+
+    RottenmouthViperEffect(DynamicValue blightCounterAmount) {
+        super(Outcome.LoseLife);
+        this.blightCounterAmount = blightCounterAmount;
+        this.staticText = "Then for each blight counter on it, each opponent loses 4 life unless that player sacrifices a nonland permanent or discards a card.";
+    }
+
+    private RottenmouthViperEffect(final RottenmouthViperEffect effect) {
+        super(effect);
+        this.blightCounterAmount = effect.blightCounterAmount.copy();
+    }
+
+    @Override
+    public RottenmouthViperEffect copy() {
+        return new RottenmouthViperEffect(this);
+    }
+
+    @Override
+    public boolean apply(Game game, Ability source) {
+        Player controller = game.getPlayer(source.getControllerId());
+        if (controller != null){
+            int repeat = blightCounterAmount.calculate(game, source, this);
+            for (int i = 1; i <= repeat; i++) {
+
+                for (UUID opponentId : game.getOpponents(source.getControllerId())) {
+                    Player opponent = game.getPlayer(opponentId);
+                    if (opponent != null) {
+                        int permanents = game.getBattlefield().countAll(StaticFilters.FILTER_PERMANENT_NON_LAND, opponentId, game);
+                        if (permanents > 0 && opponent.chooseUse(outcome, "Sacrifices a nonland permanent? (Iteration " + i + " of " + repeat + ")",
+                                "Otherwise you have to discard a card or lose 4 life.", "Sacrifice", "Discard or life loss", source, game)) {
+                            Target target = new TargetPermanent(StaticFilters.FILTER_CONTROLLED_PERMANENT_NON_LAND);
+                            target.withNotTarget(true);
+                            if (opponent.choose(outcome, target, source, game)) {
+                                Permanent permanent = game.getPermanent(target.getFirstTarget());
+                                if (permanent != null) {
+                                    if (permanent.sacrifice(source, game)) {
+                                        continue;
+                                    }
+                                }
+                            }
+                        }
+                        if (!opponent.getHand().isEmpty() && opponent.chooseUse(outcome, "Discard a card? (Iteration " + i + " of " + repeat + ")",
+                                "Otherwise you lose 4 life.", "Discard", "Lose 4 life", source, game)) {
+                            opponent.discardOne(false, false, source, game);
+                            continue;
+                        }
+                        opponent.loseLife(4, game, source, false);
+                    }
+                }
+            }
+            return true;
+        }
+        return false;
+    }
+}
+
+class RottenmouthViperCostReductionEffect extends CostModificationEffectImpl{
+
+    RottenmouthViperCostReductionEffect(){
+        super(Duration.WhileOnStack, Outcome.Benefit, CostModificationType.REDUCE_COST);
+    }
+
+    private RottenmouthViperCostReductionEffect(final RottenmouthViperCostReductionEffect effect) {
+        super(effect);
+    }
+
+    @Override
+    public RottenmouthViperCostReductionEffect copy() {
+        return new RottenmouthViperCostReductionEffect(this);
+    }
+
+    @Override
+    public boolean apply(Game game, Ability source, Ability abilityToModify) {
+        SpellAbility spellAbility = (SpellAbility) abilityToModify;
+        int reduction = 0;
+        for (Cost cost: spellAbility.getCosts()) {
+            if(!(cost instanceof SacrificeXTargetCost)){
+                continue;
+            }
+            if (game.inCheckPlayableState()) {
+                reduction += ((SacrificeXTargetCost) cost).getMaxValue(spellAbility, game);
+            } else{
+                reduction += ((SacrificeXTargetCost) cost).getAmount();
+            }
+            break;
+        }
+        CardUtil.adjustCost(spellAbility, reduction);
+        return true;
+    }
+
+    @Override
+    public boolean applies(Ability abilityToModify, Ability source, Game game) {
+        return abilityToModify instanceof SpellAbility && abilityToModify.getSourceId().equals(source.getSourceId());
+    }
+}

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

@@ -194,6 +194,7 @@ public final class Bloomburrow extends ExpansionSet {
         cards.add(new SetCardInfo("Repel Calamity", 27, Rarity.UNCOMMON, mage.cards.r.RepelCalamity.class));
         cards.add(new SetCardInfo("Reptilian Recruiter", 149, Rarity.UNCOMMON, mage.cards.r.ReptilianRecruiter.class));
         cards.add(new SetCardInfo("Rockface Village", 259, Rarity.UNCOMMON, mage.cards.r.RockfaceVillage.class));
+        cards.add(new SetCardInfo("Rottenmouth Viper", 107, Rarity.MYTHIC, mage.cards.r.RottenmouthViper.class));
         cards.add(new SetCardInfo("Roughshod Duo", 150, Rarity.COMMON, mage.cards.r.RoughshodDuo.class));
         cards.add(new SetCardInfo("Run Away Together", 67, Rarity.COMMON, mage.cards.r.RunAwayTogether.class));
         cards.add(new SetCardInfo("Rust-Shield Rampager", 190, Rarity.COMMON, mage.cards.r.RustShieldRampager.class));

Mage/src/main/java/mage/counters/CounterType.java

@@ -24,6 +24,7 @@ public enum CounterType {
     AWAKENING("awakening"),
     BLAZE("blaze"),
     BLESSING("blessing"),
+    BLIGHT("blight"),
     BLOOD("blood"),
     BLOODLINE("bloodline"),
     BLOODSTAIN("bloodstain"),