[OTC] Implement Discreet Retreat

Mage.Sets/src/mage/cards/d/DiscreetRetreat.java

@@ -0,0 +1,144 @@
+package mage.cards.d;
+
+import mage.ConditionalMana;
+import mage.MageObject;
+import mage.Mana;
+import mage.abilities.Ability;
+import mage.abilities.TriggeredAbilityImpl;
+import mage.abilities.common.SimpleStaticAbility;
+import mage.abilities.condition.Condition;
+import mage.abilities.costs.common.TapSourceCost;
+import mage.abilities.effects.Effect;
+import mage.abilities.effects.common.AttachEffect;
+import mage.abilities.effects.common.DrawCardSourceControllerEffect;
+import mage.abilities.effects.common.LoseLifeSourceControllerEffect;
+import mage.abilities.effects.common.continuous.GainAbilityAttachedEffect;
+import mage.abilities.keyword.EnchantAbility;
+import mage.abilities.mana.ConditionalAnyColorManaAbility;
+import mage.abilities.mana.builder.ConditionalManaBuilder;
+import mage.cards.CardImpl;
+import mage.cards.CardSetInfo;
+import mage.constants.*;
+import mage.filter.predicate.mageobject.OutlawPredicate;
+import mage.game.Game;
+import mage.game.events.GameEvent;
+import mage.game.stack.Spell;
+import mage.target.TargetPermanent;
+import mage.target.common.TargetLandPermanent;
+import mage.watchers.common.SpellsCastWatcher;
+
+import java.util.List;
+import java.util.Objects;
+import java.util.UUID;
+import java.util.stream.Collectors;
+
+/**
+ * @author Susucr
+ */
+public final class DiscreetRetreat extends CardImpl {
+
+    public DiscreetRetreat(UUID ownerId, CardSetInfo setInfo) {
+        super(ownerId, setInfo, new CardType[]{CardType.ENCHANTMENT}, "{3}{B}");
+
+        this.subtype.add(SubType.AURA);
+
+        // Enchant land
+        TargetPermanent auraTarget = new TargetLandPermanent();
+        this.getSpellAbility().addTarget(auraTarget);
+        this.getSpellAbility().addEffect(new AttachEffect(Outcome.Benefit));
+        Ability ability = new EnchantAbility(auraTarget);
+        this.addAbility(ability);
+
+        // Enchanted land has "{T}: Add two mana of any one color. Spend this mana only to cast outlaw spells or activate abilities from outlaw sources."
+        Ability gainedAbility = new ConditionalAnyColorManaAbility(
+                new TapSourceCost(), 2, new DiscreetRetreatManaBuilder()
+        );
+        Effect effect = new GainAbilityAttachedEffect(gainedAbility, AttachmentType.AURA);
+        effect.setText("Enchanted land has \"{T}: Add two mana of any one color. "
+                + "Spend this mana only to cast outlaw spells or activate abilities from outlaw sources.\"");
+        this.addAbility(new SimpleStaticAbility(effect));
+
+        // Whenever you cast your first outlaw spell each turn, you draw a card and you lose 1 life.
+        this.addAbility(new DiscreetRetreatTriggeredAbility());
+    }
+
+    private DiscreetRetreat(final DiscreetRetreat card) {
+        super(card);
+    }
+
+    @Override
+    public DiscreetRetreat copy() {
+        return new DiscreetRetreat(this);
+    }
+}
+
+class DiscreetRetreatTriggeredAbility extends TriggeredAbilityImpl {
+
+    DiscreetRetreatTriggeredAbility() {
+        super(Zone.BATTLEFIELD, new DrawCardSourceControllerEffect(1));
+        addEffect(new LoseLifeSourceControllerEffect(1));
+        setTriggerPhrase("Whenever you cast your first outlaw spell each turn, ");
+    }
+
+    private DiscreetRetreatTriggeredAbility(final DiscreetRetreatTriggeredAbility ability) {
+        super(ability);
+    }
+
+    @Override
+    public DiscreetRetreatTriggeredAbility copy() {
+        return new DiscreetRetreatTriggeredAbility(this);
+    }
+
+    @Override
+    public boolean checkEventType(GameEvent event, Game game) {
+        return event.getType() == GameEvent.EventType.SPELL_CAST;
+    }
+
+    @Override
+    public boolean checkTrigger(GameEvent event, Game game) {
+        if (!event.getPlayerId().equals(this.getControllerId())) {
+            return false;
+        }
+        SpellsCastWatcher watcher = game.getState().getWatcher(SpellsCastWatcher.class);
+        if (watcher == null) {
+            return false;
+        }
+        List<Spell> outlawSpells = watcher
+                .getSpellsCastThisTurn(this.getControllerId())
+                .stream()
+                .filter(Objects::nonNull)
+                .filter(s -> OutlawPredicate.instance.apply(s, game))
+                .collect(Collectors.toList());
+        return outlawSpells.size() == 1 && outlawSpells.get(0).getId().equals(event.getTargetId());
+    }
+}
+
+class DiscreetRetreatManaBuilder extends ConditionalManaBuilder {
+
+    @Override
+    public ConditionalMana build(Object... options) {
+        return new DiscreetRetreatConditionalMana(this.mana);
+    }
+
+    @Override
+    public String getRule() {
+        return "Spend this mana only to cast outlaw spells or activate abilities from outlaw sources";
+    }
+}
+
+class DiscreetRetreatConditionalMana extends ConditionalMana {
+    public DiscreetRetreatConditionalMana(Mana mana) {
+        super(mana);
+        addCondition(DiscreetRetreatCondition.instance);
+    }
+}
+
+enum DiscreetRetreatCondition implements Condition {
+    instance;
+
+    @Override
+    public boolean apply(Game game, Ability source) {
+        MageObject object = game.getObject(source);
+        return object != null && OutlawPredicate.instance.apply(object, game);
+    }
+}

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

@@ -93,6 +93,7 @@ public final class OutlawsOfThunderJunctionCommander extends ExpansionSet {
         cards.add(new SetCardInfo("Dimir Aqueduct", 288, Rarity.COMMON, mage.cards.d.DimirAqueduct.class));
         cards.add(new SetCardInfo("Dire Fleet Daredevil", 162, Rarity.RARE, mage.cards.d.DireFleetDaredevil.class));
         cards.add(new SetCardInfo("Dire Fleet Ravager", 132, Rarity.MYTHIC, mage.cards.d.DireFleetRavager.class));
+        cards.add(new SetCardInfo("Discreet Retreat", 20, Rarity.RARE, mage.cards.d.DiscreetRetreat.class));
         cards.add(new SetCardInfo("Dragonskull Summit", 289, Rarity.RARE, mage.cards.d.DragonskullSummit.class));
         cards.add(new SetCardInfo("Drowned Catacomb", 290, Rarity.RARE, mage.cards.d.DrownedCatacomb.class));
         cards.add(new SetCardInfo("Dune Chanter", 31, Rarity.RARE, mage.cards.d.DuneChanter.class));