[MH2] Implement Altar of the Goyf

Mage.Sets/src/mage/cards/a/AltarOfTheGoyf.java

@@ -0,0 +1,98 @@
+package mage.cards.a;
+
+import mage.abilities.TriggeredAbilityImpl;
+import mage.abilities.common.SimpleStaticAbility;
+import mage.abilities.dynamicvalue.common.CardTypesInGraveyardCount;
+import mage.abilities.effects.Effect;
+import mage.abilities.effects.common.continuous.BoostTargetEffect;
+import mage.abilities.effects.common.continuous.GainAbilityControlledEffect;
+import mage.abilities.keyword.TrampleAbility;
+import mage.cards.CardImpl;
+import mage.cards.CardSetInfo;
+import mage.constants.CardType;
+import mage.constants.Duration;
+import mage.constants.SubType;
+import mage.constants.Zone;
+import mage.filter.FilterPermanent;
+import mage.game.Game;
+import mage.game.events.GameEvent;
+import mage.target.targetpointer.FixedTarget;
+
+import java.util.UUID;
+
+/**
+ * @author jmharmon
+ */
+
+public final class AltarOfTheGoyf extends CardImpl {
+
+    private static final FilterPermanent filter = new FilterPermanent("Lhurgoyf creatures");
+
+    static {
+        filter.add(CardType.CREATURE.getPredicate());
+        filter.add(SubType.LHURGOYF.getPredicate());
+    }
+
+    public AltarOfTheGoyf(UUID ownerId, CardSetInfo setInfo) {
+        super(ownerId, setInfo, new CardType[]{CardType.TRIBAL, CardType.ARTIFACT}, "{5}");
+
+        this.subtype.add(SubType.LHURGOYF);
+
+        // Whenever a creature you control attacks alone, it gets +X/+X until end of turn, where X is the number of card types among cards in all graveyard.
+        this.addAbility(new AltarOfTheGoyfAbility());
+
+        // Lhurgoyf creatures you control have trample.
+        this.addAbility(new SimpleStaticAbility(Zone.BATTLEFIELD, new GainAbilityControlledEffect(TrampleAbility.getInstance(), Duration.WhileOnBattlefield, filter)));
+    }
+
+    private AltarOfTheGoyf(final AltarOfTheGoyf card) {
+        super(card);
+    }
+
+    @Override
+    public AltarOfTheGoyf copy() {
+        return new AltarOfTheGoyf(this);
+    }
+}
+
+class AltarOfTheGoyfAbility extends TriggeredAbilityImpl{
+
+    public AltarOfTheGoyfAbility() {
+        super(Zone.BATTLEFIELD, new BoostTargetEffect(
+                CardTypesInGraveyardCount.instance, CardTypesInGraveyardCount.instance, Duration.EndOfTurn, true), false);
+    }
+
+    public AltarOfTheGoyfAbility(final AltarOfTheGoyfAbility ability) {
+        super(ability);
+    }
+
+    @Override
+    public AltarOfTheGoyfAbility copy() {
+        return new AltarOfTheGoyfAbility(this);
+    }
+
+    @Override
+    public boolean checkEventType(GameEvent event, Game game) {
+        return event.getType() == GameEvent.EventType.DECLARED_ATTACKERS;
+    }
+
+    @Override
+    public boolean checkTrigger(GameEvent event, Game game) {
+        if (game.isActivePlayer(this.controllerId)) {
+            if (game.getCombat().attacksAlone()) {
+                for (Effect effect : this.getEffects()) {
+                    effect.setTargetPointer(new FixedTarget(game.getCombat().getAttackers().get(0)));
+                }
+                return true;
+            }
+        }
+        return false;
+    }
+
+    @Override
+    public String getRule() {
+        return "Whenever a creature you control attacks alone, " +
+                "it gets +X/+X until end of turn, " +
+                "where X is the number of card types among cards in all graveyard.";
+    }
+}