* Added DelveAbility.

Mage/src/mage/abilities/keyword/DelveAbility.java

@@ -0,0 +1,111 @@
+/*
+ *  Copyright 2010 BetaSteward_at_googlemail.com. All rights reserved.
+ *
+ *  Redistribution and use in source and binary forms, with or without modification, are
+ *  permitted provided that the following conditions are met:
+ *
+ *     1. Redistributions of source code must retain the above copyright notice, this list of
+ *        conditions and the following disclaimer.
+ *
+ *     2. Redistributions in binary form must reproduce the above copyright notice, this list
+ *        of conditions and the following disclaimer in the documentation and/or other materials
+ *        provided with the distribution.
+ *
+ *  THIS SOFTWARE IS PROVIDED BY BetaSteward_at_googlemail.com ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ *  WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
+ *  FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL BetaSteward_at_googlemail.com OR
+ *  CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ *  CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ *  SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
+ *  ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ *  NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+ *  ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ *  The views and conclusions contained in the software and documentation are those of the
+ *  authors and should not be interpreted as representing official policies, either expressed
+ *  or implied, of BetaSteward_at_googlemail.com.
+ */
+package mage.abilities.keyword;
+
+import java.util.UUID;
+import mage.abilities.Ability;
+import mage.abilities.SpellAbility;
+import mage.abilities.common.SimpleStaticAbility;
+import mage.abilities.costs.AdjustingSourceCosts;
+import mage.cards.Card;
+import mage.constants.Outcome;
+import mage.constants.Zone;
+import mage.filter.FilterCard;
+import mage.game.Game;
+import mage.players.Player;
+import mage.target.Target;
+import mage.target.common.TargetCardInYourGraveyard;
+import mage.util.CardUtil;
+
+
+/**
+ * 702.64. Delve
+ *
+ * 702.64a Delve is a static ability that functions while the spell that has delve is on
+ * the stack. "Delve" means "As an additional cost to cast this spell, you may exile any
+ * number of cards from your graveyard. Each card exiled this way reduces the cost to cast
+ * this spell by {1}." Using the delve ability follows the rules for paying additional
+ * costs in rules 601.2b and 601.2e-g. #
+ *
+ * 702.64b Multiple instances of delve on the same spell are redundant.
+ *
+ * @author LevelX2
+ *
+ */
+
+ public class DelveAbility extends SimpleStaticAbility implements AdjustingSourceCosts {
+
+    public DelveAbility() {
+        super(Zone.STACK, null);
+        this.setRuleAtTheTop(true);
+    }
+
+    public DelveAbility(final DelveAbility ability) {
+      super(ability);
+    }
+
+    @Override
+    public DelveAbility copy() {
+      return new DelveAbility(this);
+    }
+
+    @Override
+    public void adjustCosts(Ability ability, Game game) {
+        Player player = game.getPlayer(controllerId);
+        if (player == null || !(ability instanceof SpellAbility)) {
+            return;
+        }
+        Target target = new TargetCardInYourGraveyard(1, Integer.MAX_VALUE, new FilterCard());
+        target.setTargetName("cards to delve from your graveyard");
+        if (!target.canChoose(sourceId, controllerId, game)) {
+            return;
+        }
+        if (player.chooseUse(Outcome.Detriment, "Delve cards from your graveyard?", game)) {
+            player.chooseTarget(Outcome.Detriment, target, ability, game);
+            if (target.getTargets().size() > 0) {
+                int adjCost = 0;
+                for (UUID cardId: target.getTargets()) {
+                    Card card = game.getCard(cardId);
+                    if (card == null) {
+                        continue;
+                    }
+                    card.moveToExile(null, null, this.getSourceId(), game);
+                    ++adjCost;
+                }
+                game.informPlayers(new StringBuilder(player.getName()).append(" delved ")
+                        .append(adjCost).append(" creature").append(adjCost != 1?"s":"").append(" from his or her graveyard").toString());
+                CardUtil.adjustCost((SpellAbility)ability, adjCost);
+            }
+        }
+    }
+
+    @Override
+    public String getRule() {
+      return "Delve <i>(You may exile any number of cards from your graveyard as you cast this spell. It costs {1} less to cast for each card exiled this way.)</i>";
+    }
+}