[M13] Switcheroo

Mage.Sets/src/mage/sets/magic2013/Switcheroo.java

@@ -27,9 +27,12 @@
  */
 package mage.sets.magic2013;
 
+import mage.Constants;
 import mage.Constants.CardType;
 import mage.Constants.Rarity;
+import mage.abilities.effects.common.continious.ExchangeControlTargetEffect;
 import mage.cards.CardImpl;
+import mage.target.common.TargetCreaturePermanent;
 
 import java.util.UUID;
 
@@ -38,6 +41,8 @@ import java.util.UUID;
  */
 public class Switcheroo extends CardImpl<Switcheroo> {
 
+    private static final String rule = "Exchange control of two target creatures";
+
     public Switcheroo(UUID ownerId) {
         super(ownerId, 71, "Switcheroo", Rarity.UNCOMMON, new CardType[]{CardType.SORCERY}, "{4}{U}");
         this.expansionSetCode = "M13";
@@ -45,7 +50,8 @@ public class Switcheroo extends CardImpl<Switcheroo> {
         this.color.setBlue(true);
 
         // Exchange control of two target creatures.
-        // TODO: implement
+        this.getSpellAbility().addEffect(new ExchangeControlTargetEffect(Constants.Duration.EndOfGame, rule));
+        this.getSpellAbility().addTarget(new TargetCreaturePermanent(2));
     }
 
     public Switcheroo(final Switcheroo card) {

Mage/src/mage/abilities/effects/common/continious/ExchangeControlTargetEffect.java

@@ -0,0 +1,102 @@
+/*
+* 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.effects.common.continious;
+
+import mage.Constants.Duration;
+import mage.Constants.Layer;
+import mage.Constants.Outcome;
+import mage.Constants.SubLayer;
+import mage.abilities.Ability;
+import mage.abilities.Mode;
+import mage.abilities.effects.ContinuousEffectImpl;
+import mage.game.Game;
+import mage.game.permanent.Permanent;
+
+import java.util.HashSet;
+import java.util.Iterator;
+import java.util.Set;
+import java.util.UUID;
+
+/**
+ * @author magenoxx_at_googlemail.com
+ */
+public class ExchangeControlTargetEffect extends ContinuousEffectImpl<ExchangeControlTargetEffect> {
+
+    private String rule;
+
+    public ExchangeControlTargetEffect(Duration duration, String rule) {
+        super(duration, Layer.ControlChangingEffects_2, SubLayer.NA, Outcome.GainControl);
+        this.rule = rule;
+    }
+
+    public ExchangeControlTargetEffect(final ExchangeControlTargetEffect effect) {
+        super(effect);
+        this.rule = effect.rule;
+    }
+
+    @Override
+    public ExchangeControlTargetEffect copy() {
+        return new ExchangeControlTargetEffect(this);
+    }
+
+    @Override
+    public boolean apply(Game game, Ability source) {
+        Set<UUID> controllers = new HashSet<UUID>();
+        for (UUID permanentId : targetPointer.getTargets(game, source)) {
+            Permanent permanent = game.getPermanent(permanentId);
+            if (permanent != null) {
+                controllers.add(permanent.getControllerId());
+            }
+        }
+        // exchange works only for two different controllers
+        if (controllers.size() != 2) {
+            // discard effect
+            this.discarded = true;
+            return false;
+        }
+
+        Iterator<UUID> it = controllers.iterator();
+        UUID firstController = it.next();
+        UUID secondController = it.next();
+
+        for (UUID permanentId : targetPointer.getTargets(game, source)) {
+            Permanent permanent = game.getPermanent(permanentId);
+            if (permanent != null) {
+                permanent.changeControllerId(permanent.getControllerId().equals(firstController) ? secondController : firstController, game);
+            }
+        }
+
+        return true;
+    }
+
+    @Override
+    public String getText(Mode mode) {
+        return this.rule;
+    }
+}