[BLB] Implement forage mechanic (#12569)

* [BLB] Implement Corpseberry Cultivator

* [BLB] Implement Thornvault Forager

* fix verify failure

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

@@ -0,0 +1,49 @@
+package mage.cards.c;
+
+import mage.MageInt;
+import mage.abilities.common.BeginningOfCombatTriggeredAbility;
+import mage.abilities.common.ForageTriggeredAbility;
+import mage.abilities.costs.common.ForageCost;
+import mage.abilities.effects.common.DoIfCostPaid;
+import mage.abilities.effects.common.counter.AddCountersSourceEffect;
+import mage.cards.CardImpl;
+import mage.cards.CardSetInfo;
+import mage.constants.CardType;
+import mage.constants.SubType;
+import mage.constants.TargetController;
+import mage.counters.CounterType;
+
+import java.util.UUID;
+
+/**
+ * @author TheElk801
+ */
+public final class CorpseberryCultivator extends CardImpl {
+
+    public CorpseberryCultivator(UUID ownerId, CardSetInfo setInfo) {
+        super(ownerId, setInfo, new CardType[]{CardType.CREATURE}, "{1}{B/G}{B/G}");
+
+        this.subtype.add(SubType.SQUIRREL);
+        this.subtype.add(SubType.WARLOCK);
+        this.power = new MageInt(2);
+        this.toughness = new MageInt(3);
+
+        // At the beginning of combat on your turn, you may forage.
+        this.addAbility(new BeginningOfCombatTriggeredAbility(
+                new DoIfCostPaid(null, new ForageCost()),
+                TargetController.YOU, false
+        ));
+
+        // Whenever you forage, put a +1/+1 counter on Corpseberry Cultivator.
+        this.addAbility(new ForageTriggeredAbility(new AddCountersSourceEffect(CounterType.P1P1.createInstance())));
+    }
+
+    private CorpseberryCultivator(final CorpseberryCultivator card) {
+        super(card);
+    }
+
+    @Override
+    public CorpseberryCultivator copy() {
+        return new CorpseberryCultivator(this);
+    }
+}

Mage.Sets/src/mage/cards/t/ThornvaultForager.java

@@ -0,0 +1,67 @@
+package mage.cards.t;
+
+import mage.MageInt;
+import mage.abilities.Ability;
+import mage.abilities.common.SimpleActivatedAbility;
+import mage.abilities.costs.common.ForageCost;
+import mage.abilities.costs.common.TapSourceCost;
+import mage.abilities.costs.mana.ManaCostsImpl;
+import mage.abilities.effects.common.search.SearchLibraryPutInHandEffect;
+import mage.abilities.effects.mana.AddManaInAnyCombinationEffect;
+import mage.abilities.mana.GreenManaAbility;
+import mage.abilities.mana.SimpleManaAbility;
+import mage.cards.CardImpl;
+import mage.cards.CardSetInfo;
+import mage.constants.CardType;
+import mage.constants.SubType;
+import mage.filter.FilterCard;
+import mage.target.common.TargetCardInLibrary;
+
+import java.util.UUID;
+
+/**
+ * @author TheElk801
+ */
+public final class ThornvaultForager extends CardImpl {
+
+    private static final FilterCard filter = new FilterCard("a Squirrel card");
+
+    static {
+        filter.add(SubType.SQUIRREL.getPredicate());
+    }
+
+    public ThornvaultForager(UUID ownerId, CardSetInfo setInfo) {
+        super(ownerId, setInfo, new CardType[]{CardType.CREATURE}, "{1}{G}");
+
+        this.subtype.add(SubType.SQUIRREL);
+        this.subtype.add(SubType.RANGER);
+        this.power = new MageInt(2);
+        this.toughness = new MageInt(2);
+
+        // {T}: Add {G}.
+        this.addAbility(new GreenManaAbility());
+
+        // {T}, Forage: Add two mana in any combination of colors.
+        Ability ability = new SimpleManaAbility(new AddManaInAnyCombinationEffect(5), new TapSourceCost());
+        ability.addCost(new ForageCost());
+        this.addAbility(ability);
+
+        // {3}{G}, {T}: Search your library for a Squirrel card, reveal it, put it into your hand, then shuffle.
+        ability = new SimpleActivatedAbility(
+                new SearchLibraryPutInHandEffect(
+                        new TargetCardInLibrary(filter), true
+                ), new ManaCostsImpl<>("{3}{G}")
+        );
+        ability.addCost(new TapSourceCost());
+        this.addAbility(ability);
+    }
+
+    private ThornvaultForager(final ThornvaultForager card) {
+        super(card);
+    }
+
+    @Override
+    public ThornvaultForager copy() {
+        return new ThornvaultForager(this);
+    }
+}

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

@@ -30,6 +30,7 @@ public final class Bloomburrow extends ExpansionSet {
         cards.add(new SetCardInfo("Byrke, Long Ear of the Law", 380, Rarity.MYTHIC, mage.cards.b.ByrkeLongEarOfTheLaw.class));
         cards.add(new SetCardInfo("Cache Grab", 167, Rarity.COMMON, mage.cards.c.CacheGrab.class));
         cards.add(new SetCardInfo("Carrot Cake", 7, Rarity.COMMON, mage.cards.c.CarrotCake.class));
+        cards.add(new SetCardInfo("Corpseberry Cultivator", 210, Rarity.COMMON, mage.cards.c.CorpseberryCultivator.class));
         cards.add(new SetCardInfo("Early Winter", 93, Rarity.COMMON, mage.cards.e.EarlyWinter.class));
         cards.add(new SetCardInfo("Fell", 95, Rarity.UNCOMMON, mage.cards.f.Fell.class));
         cards.add(new SetCardInfo("Flowerfoot Swordmaster", 14, Rarity.UNCOMMON, mage.cards.f.FlowerfootSwordmaster.class));
@@ -67,6 +68,7 @@ public final class Bloomburrow extends ExpansionSet {
         cards.add(new SetCardInfo("Swamp", 270, Rarity.LAND, mage.cards.basiclands.Swamp.class, FULL_ART_BFZ_VARIOUS));
         cards.add(new SetCardInfo("Tempest Angler", 235, Rarity.COMMON, mage.cards.t.TempestAngler.class));
         cards.add(new SetCardInfo("Tender Wildguide", 196, Rarity.RARE, mage.cards.t.TenderWildguide.class));
+        cards.add(new SetCardInfo("Thornvault Forager", 197, Rarity.RARE, mage.cards.t.ThornvaultForager.class));
         cards.add(new SetCardInfo("Thundertrap Trainer", 78, Rarity.RARE, mage.cards.t.ThundertrapTrainer.class));
         cards.add(new SetCardInfo("Veteran Guardmouse", 237, Rarity.COMMON, mage.cards.v.VeteranGuardmouse.class));
         cards.add(new SetCardInfo("Warren Warleader", 38, Rarity.MYTHIC, mage.cards.w.WarrenWarleader.class));

Mage/src/main/java/mage/abilities/common/ForageTriggeredAbility.java

@@ -0,0 +1,41 @@
+package mage.abilities.common;
+
+import mage.abilities.TriggeredAbilityImpl;
+import mage.abilities.effects.Effect;
+import mage.constants.Zone;
+import mage.game.Game;
+import mage.game.events.GameEvent;
+
+/**
+ * @author TheElk801
+ */
+public class ForageTriggeredAbility extends TriggeredAbilityImpl {
+
+    public ForageTriggeredAbility(Effect effect) {
+        this(Zone.BATTLEFIELD, effect, false);
+    }
+
+    public ForageTriggeredAbility(Zone zone, Effect effect, boolean optional) {
+        super(zone, effect, optional);
+        setTriggerPhrase("Whenever you forage, ");
+    }
+
+    private ForageTriggeredAbility(final ForageTriggeredAbility ability) {
+        super(ability);
+    }
+
+    @Override
+    public ForageTriggeredAbility copy() {
+        return new ForageTriggeredAbility(this);
+    }
+
+    @Override
+    public boolean checkEventType(GameEvent event, Game game) {
+        return event.getType() == GameEvent.EventType.FORAGED;
+    }
+
+    @Override
+    public boolean checkTrigger(GameEvent event, Game game) {
+        return isControlledBy(event.getPlayerId());
+    }
+}

Mage/src/main/java/mage/abilities/costs/common/ForageCost.java

@@ -0,0 +1,43 @@
+package mage.abilities.costs.common;
+
+import mage.abilities.Ability;
+import mage.abilities.costs.Cost;
+import mage.abilities.costs.OrCost;
+import mage.filter.StaticFilters;
+import mage.game.Game;
+import mage.game.events.GameEvent;
+import mage.target.common.TargetCardInYourGraveyard;
+
+import java.util.UUID;
+
+/**
+ * @author TheElk801
+ */
+public class ForageCost extends OrCost {
+
+    public ForageCost() {
+        super(
+                "forage",
+                new ExileFromGraveCost(new TargetCardInYourGraveyard(3)),
+                new SacrificeTargetCost(StaticFilters.FILTER_CONTROLLED_FOOD)
+        );
+    }
+
+    private ForageCost(final ForageCost cost) {
+        super(cost);
+    }
+
+    @Override
+    public ForageCost copy() {
+        return new ForageCost(this);
+    }
+
+    @Override
+    public boolean pay(Ability ability, Game game, Ability source, UUID controllerId, boolean noMana, Cost costToPay) {
+        if (!super.pay(ability, game, source, controllerId, noMana, costToPay)) {
+            return false;
+        }
+        game.fireEvent(GameEvent.getEvent(GameEvent.EventType.FORAGED, source.getSourceId(), source, controllerId));
+        return true;
+    }
+}

Mage/src/main/java/mage/game/events/GameEvent.java

@@ -662,6 +662,12 @@ public class GameEvent implements Serializable {
          playerId   owner of the plotted card (the one able to cast the card)
          */
         BECOME_PLOTTED,
+        /* the player foraged
+         targetId   same as sourceId
+         sourceId   of the ability
+         playerId   player who foraged
+         */
+        FORAGED,
         //custom events
         CUSTOM_EVENT
     }