implemented Oath of Kaya

Mage.Sets/src/mage/cards/o/OathOfKaya.java

@@ -0,0 +1,109 @@
+package mage.cards.o;
+
+import mage.abilities.Ability;
+import mage.abilities.TriggeredAbilityImpl;
+import mage.abilities.common.EntersBattlefieldTriggeredAbility;
+import mage.abilities.effects.Effect;
+import mage.abilities.effects.common.DamageTargetEffect;
+import mage.abilities.effects.common.GainLifeEffect;
+import mage.cards.CardImpl;
+import mage.cards.CardSetInfo;
+import mage.constants.CardType;
+import mage.constants.SuperType;
+import mage.constants.Zone;
+import mage.game.Game;
+import mage.game.events.GameEvent;
+import mage.game.permanent.Permanent;
+import mage.target.common.TargetAnyTarget;
+import mage.target.targetpointer.FixedTarget;
+
+import java.util.HashSet;
+import java.util.Set;
+import java.util.UUID;
+
+/**
+ * @author TheElk801
+ */
+public final class OathOfKaya extends CardImpl {
+
+    public OathOfKaya(UUID ownerId, CardSetInfo setInfo) {
+        super(ownerId, setInfo, new CardType[]{CardType.ENCHANTMENT}, "{1}{W}{B}");
+
+        this.addSuperType(SuperType.LEGENDARY);
+
+        // When Oath of Kaya enters the battlefield, it deals 3 damage to any target and you gain 3 life.
+        Ability ability = new EntersBattlefieldTriggeredAbility(new DamageTargetEffect(3, "it"));
+        ability.addEffect(new GainLifeEffect(3).concatBy("and"));
+        ability.addTarget(new TargetAnyTarget());
+        this.addAbility(ability);
+
+        // Whenever an opponent attacks a planeswalker you control with one or more creatures, Oath of Kaya deals 2 damage to that player and you gain 2 life.
+        this.addAbility(new OathOfKayaTriggeredAbility());
+    }
+
+    private OathOfKaya(final OathOfKaya card) {
+        super(card);
+    }
+
+    @Override
+    public OathOfKaya copy() {
+        return new OathOfKaya(this);
+    }
+}
+
+class OathOfKayaTriggeredAbility extends TriggeredAbilityImpl {
+    private final Set<UUID> attackedThisCombat = new HashSet();
+
+    OathOfKayaTriggeredAbility() {
+        super(Zone.BATTLEFIELD, null, false);
+    }
+
+    private OathOfKayaTriggeredAbility(final OathOfKayaTriggeredAbility ability) {
+        super(ability);
+        this.attackedThisCombat.addAll(ability.attackedThisCombat);
+    }
+
+    @Override
+    public boolean checkEventType(GameEvent event, Game game) {
+        return event.getType() == GameEvent.EventType.ATTACKER_DECLARED
+                || event.getType() == GameEvent.EventType.DECLARE_ATTACKERS_STEP_POST;
+    }
+
+    @Override
+    public boolean checkTrigger(GameEvent event, Game game) {
+        if (event.getType() == GameEvent.EventType.DECLARE_ATTACKERS_STEP_POST) {
+            this.attackedThisCombat.clear();
+            return false;
+        }
+        for (UUID attackerId : game.getCombat().getAttackers()) {
+            Permanent attacker = game.getPermanent(attackerId);
+            if (attacker == null) {
+                continue;
+            }
+            UUID defendingPlayerId = game.getCombat().getDefendingPlayerId(attackerId, game);
+            UUID defenderId = game.getCombat().getDefenderId(attackerId);
+            if (defendingPlayerId.equals(defenderId) || attackedThisCombat.contains(defenderId)) {
+                continue;
+            }
+            attackedThisCombat.add(defenderId);
+            this.getEffects().clear();
+            Effect effect = new DamageTargetEffect(2);
+            effect.setTargetPointer(new FixedTarget(defendingPlayerId, game));
+            this.addEffect(effect);
+            this.addEffect(new GainLifeEffect(2));
+            return true;
+        }
+        return false;
+    }
+
+    @Override
+    public OathOfKayaTriggeredAbility copy() {
+        return new OathOfKayaTriggeredAbility(this);
+    }
+
+    @Override
+    public String getRule() {
+        return "Whenever an opponent attacks a planeswalker you control with one or more creatures, " +
+                "{this} deals 2 damage to that player and you gain 2 life.";
+    }
+}

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

@@ -198,6 +198,7 @@ public final class WarOfTheSpark extends ExpansionSet {
         cards.add(new SetCardInfo("Nissa, Who Shakes the World", 169, Rarity.RARE, mage.cards.n.NissaWhoShakesTheWorld.class));
         cards.add(new SetCardInfo("Niv-Mizzet Reborn", 208, Rarity.MYTHIC, mage.cards.n.NivMizzetReborn.class));
         cards.add(new SetCardInfo("No Escape", 63, Rarity.COMMON, mage.cards.n.NoEscape.class));
+        cards.add(new SetCardInfo("Oath of Kaya", 209, Rarity.RARE, mage.cards.o.OathOfKaya.class));
         cards.add(new SetCardInfo("Ob Nixilis's Cruelty", 101, Rarity.COMMON, mage.cards.o.ObNixilissCruelty.class));
         cards.add(new SetCardInfo("Ob Nixilis, the Hate-Twisted", 100, Rarity.UNCOMMON, mage.cards.o.ObNixilisTheHateTwisted.class));
         cards.add(new SetCardInfo("Orzhov Guildgate", 269, Rarity.COMMON, mage.cards.o.OrzhovGuildgate.class));