Implemented Chandra's Incinerator

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

@@ -0,0 +1,168 @@
+package mage.cards.c;
+
+import mage.MageInt;
+import mage.abilities.Ability;
+import mage.abilities.SpellAbility;
+import mage.abilities.TriggeredAbilityImpl;
+import mage.abilities.common.SimpleStaticAbility;
+import mage.abilities.effects.common.DamageTargetEffect;
+import mage.abilities.effects.common.cost.CostModificationEffectImpl;
+import mage.abilities.keyword.TrampleAbility;
+import mage.cards.CardImpl;
+import mage.cards.CardSetInfo;
+import mage.constants.*;
+import mage.filter.FilterPermanent;
+import mage.filter.common.FilterCreatureOrPlaneswalkerPermanent;
+import mage.filter.predicate.permanent.ControllerIdPredicate;
+import mage.game.Game;
+import mage.game.events.DamagedPlayerEvent;
+import mage.game.events.GameEvent;
+import mage.target.TargetPermanent;
+import mage.util.CardUtil;
+import mage.watchers.Watcher;
+
+import java.util.HashMap;
+import java.util.Map;
+import java.util.UUID;
+
+/**
+ * @author TheElk801
+ */
+public final class ChandrasIncinerator extends CardImpl {
+
+    public ChandrasIncinerator(UUID ownerId, CardSetInfo setInfo) {
+        super(ownerId, setInfo, new CardType[]{CardType.CREATURE}, "{5}{R}");
+
+        this.subtype.add(SubType.ELEMENTAL);
+        this.power = new MageInt(6);
+        this.toughness = new MageInt(6);
+
+        // This spell costs {X} less to cast, where X is the total amount of noncombat damage dealt to your opponents this turn.
+        this.addAbility(new SimpleStaticAbility(
+                Zone.ALL, new ChandrasIncineratorCostReductionEffect()
+        ), new ChandrasIncineratorWatcher());
+
+        // Trample
+        this.addAbility(TrampleAbility.getInstance());
+
+        // Whenever a source you control deals noncombat damage to an opponent, Chandra's Incinerator deals that much damage to target creature or planeswalker that player controls.
+        this.addAbility(new ChandrasIncineratorTriggeredAbility());
+    }
+
+    private ChandrasIncinerator(final ChandrasIncinerator card) {
+        super(card);
+    }
+
+    @Override
+    public ChandrasIncinerator copy() {
+        return new ChandrasIncinerator(this);
+    }
+}
+
+class ChandrasIncineratorCostReductionEffect extends CostModificationEffectImpl {
+
+    ChandrasIncineratorCostReductionEffect() {
+        super(Duration.WhileOnStack, Outcome.Benefit, CostModificationType.REDUCE_COST);
+        staticText = "This spell costs {X} less to cast, where X is the total amount of noncombat damage dealt to your opponents this turn";
+    }
+
+    private ChandrasIncineratorCostReductionEffect(final ChandrasIncineratorCostReductionEffect effect) {
+        super(effect);
+    }
+
+    @Override
+    public boolean apply(Game game, Ability source, Ability abilityToModify) {
+        ChandrasIncineratorWatcher watcher = game.getState().getWatcher(ChandrasIncineratorWatcher.class);
+        if (watcher == null) {
+            return true;
+        }
+        int reductionAmount = watcher.getDamage(source.getControllerId());
+        CardUtil.reduceCost(abilityToModify, Math.max(0, reductionAmount));
+        return true;
+    }
+
+    @Override
+    public boolean applies(Ability abilityToModify, Ability source, Game game) {
+        return abilityToModify instanceof SpellAbility
+                && abilityToModify.getSourceId().equals(source.getSourceId())
+                && game.getCard(abilityToModify.getSourceId()) != null;
+    }
+
+    @Override
+    public ChandrasIncineratorCostReductionEffect copy() {
+        return new ChandrasIncineratorCostReductionEffect(this);
+    }
+}
+
+class ChandrasIncineratorWatcher extends Watcher {
+
+    private final Map<UUID, Integer> damageMap = new HashMap<>();
+
+    ChandrasIncineratorWatcher() {
+        super(WatcherScope.GAME);
+    }
+
+    @Override
+    public void watch(GameEvent event, Game game) {
+        if (event.getType() != GameEvent.EventType.DAMAGED_PLAYER
+                || ((DamagedPlayerEvent) event).isCombatDamage()) {
+            return;
+        }
+        for (UUID playerId : game.getOpponents(event.getPlayerId())) {
+            damageMap.compute(playerId, ((u, i) -> i == null ? 0 : Integer.sum(i, event.getAmount())));
+        }
+    }
+
+    @Override
+    public void reset() {
+        damageMap.clear();
+    }
+
+    int getDamage(UUID playerId) {
+        return damageMap.getOrDefault(playerId, 0);
+    }
+}
+
+class ChandrasIncineratorTriggeredAbility extends TriggeredAbilityImpl {
+
+    ChandrasIncineratorTriggeredAbility() {
+        super(Zone.BATTLEFIELD, null);
+    }
+
+    private ChandrasIncineratorTriggeredAbility(final ChandrasIncineratorTriggeredAbility ability) {
+        super(ability);
+    }
+
+    @Override
+    public boolean checkEventType(GameEvent event, Game game) {
+        return event.getType() == GameEvent.EventType.DAMAGED_PLAYER;
+    }
+
+    @Override
+    public boolean checkTrigger(GameEvent event, Game game) {
+        DamagedPlayerEvent dEvent = (DamagedPlayerEvent) event;
+        if (dEvent.isCombatDamage()
+                || !game.getOpponents(event.getTargetId()).contains(getControllerId())
+                || !event.getPlayerId().equals(getControllerId())) {
+            return false;
+        }
+        this.getEffects().clear();
+        this.addEffect(new DamageTargetEffect(event.getAmount()));
+        FilterPermanent filter = new FilterCreatureOrPlaneswalkerPermanent("creature or planeswalker");
+        filter.add(new ControllerIdPredicate(event.getTargetId()));
+        this.getTargets().clear();
+        this.addTarget(new TargetPermanent(filter));
+        return true;
+    }
+
+    @Override
+    public ChandrasIncineratorTriggeredAbility copy() {
+        return new ChandrasIncineratorTriggeredAbility(this);
+    }
+
+    @Override
+    public String getRule() {
+        return "Whenever a source you control deals noncombat damage to an opponent, " +
+                "{this} deals that much damage to target creature or planeswalker that player controls.";
+    }
+}

Mage.Sets/src/mage/sets/CoreSet2021.java

@@ -44,6 +44,7 @@ public final class CoreSet2021 extends ExpansionSet {
         cards.add(new SetCardInfo("Bolt Hound", 131, Rarity.UNCOMMON, mage.cards.b.BoltHound.class));
         cards.add(new SetCardInfo("Carrion Grub", 92, Rarity.UNCOMMON, mage.cards.c.CarrionGrub.class));
         cards.add(new SetCardInfo("Chandra's Firemaw", 333, Rarity.RARE, mage.cards.c.ChandrasFiremaw.class));
+        cards.add(new SetCardInfo("Chandra's Incinerator", 302, Rarity.RARE, mage.cards.c.ChandrasIncinerator.class));
         cards.add(new SetCardInfo("Chandra's Magmutt", 303, Rarity.COMMON, mage.cards.c.ChandrasMagmutt.class));
         cards.add(new SetCardInfo("Chandra, Flame's Catalyst", 332, Rarity.MYTHIC, mage.cards.c.ChandraFlamesCatalyst.class));
         cards.add(new SetCardInfo("Chromatic Orrery", 228, Rarity.MYTHIC, mage.cards.c.ChromaticOrrery.class));