- Added AI support to AF ExchangeControl.

res/cardsfolder/p/phyrexian_infiltrator.txt

@@ -4,7 +4,6 @@ Types:Creature Minion
 Text:no text
 PT:2/2
 A:AB$ ExchangeControl | Cost$ 2 U U | Defined$ Self | ValidTgts$ Creature | TgtPrompt$ Select target creature | SpellDescription$ Exchange control of CARDNAME and target creature. (This effect lasts indefinitely.)
-SVar:RemAIDeck:True
 SVar:Rarity:Rare
 SVar:Picture:http://www.wizards.com/global/images/magic/general/phyrexian_infiltrator.jpg
 SetInfo:INV|Rare|http://magiccards.info/scans/en/in/116.jpg

res/cardsfolder/s/switcheroo.txt

@@ -3,7 +3,6 @@ ManaCost:4 U
 Types:Sorcery
 Text:no text
 A:SP$ ExchangeControl | Cost$ 4 U | ValidTgts$ Creature | TgtPrompt$ Select target creature | TargetMin$ 2 | TargetMax$ 2 | SpellDescription$ Exchange control of two target creatures.
-SVar:RemAIDeck:True
 SVar:Rarity:Uncommon
 SVar:Picture:http://www.wizards.com/global/images/magic/general/switcheroo.jpg
 SetInfo:M13|Uncommon|http://magiccards.info/scans/en/m13/71.jpg

src/main/java/forge/card/abilityfactory/AbilityFactoryGainControl.java

@@ -42,6 +42,7 @@ import forge.game.phase.PhaseType;
 import forge.game.player.ComputerUtil;
 import forge.game.player.Player;
 import forge.game.zone.ZoneType;
+import forge.util.MyRandom;
 
 //AB:GainControl|ValidTgts$Creature|TgtPrompt$Select target legendary creature|LoseControl$Untap,LoseControl|SpellDescription$Gain control of target xxxxxxx
 
@@ -721,17 +722,11 @@ public class AbilityFactoryGainControl {
                 this.af.getAbTgt()) {
             private static final long serialVersionUID = 8004957182752960518L;
             private final AbilityFactory af = AbilityFactoryGainControl.this.af;
-            private final HashMap<String, String> params = this.af.getMapParams();
 
             @Override
             public String getStackDescription() {
-                if (this.params.containsKey("SpellDescription")) {
-                    return af.getHostCard().getName() + " - "
-                            + this.params.get("SpellDescription");
-                } else {
                 return exchangeControlStackDescription(this.af, this);
             }
-            }
 
             @Override
             public boolean canPlayAI() {
@@ -841,9 +836,39 @@ public class AbilityFactoryGainControl {
     }
 
     private boolean exchangeControlCanPlayAI(final AbilityFactory af, final SpellAbility sa) {
+        final HashMap<String, String> params = af.getMapParams();
+        Card object1 = null;
+        Card object2 = null;
+        final Target tgt = sa.getTarget();
+        tgt.resetTargets();
 
-        //final Target tgt = sa.getTarget();
+        CardList list = AllZone.getHumanPlayer().getCardsIn(ZoneType.Battlefield);
-
+        list = list.getValidCards(tgt.getValidTgts(), AllZone.getComputerPlayer(), this.hostCard);
+        // AI won't try to grab cards that are filtered out of AI decks on
+        // purpose
+        list = list.filter(new CardListFilter() {
+            @Override
+            public boolean addCard(final Card c) {
+                final Map<String, String> vars = c.getSVars();
+                return !vars.containsKey("RemAIDeck") && c.canBeTargetedBy(sa);
+            }
+        });
+        object1 = CardFactoryUtil.getBestAI(list);
+        if (params.containsKey("Defined")) {
+            object2 = AbilityFactory.getDefinedCards(sa.getSourceCard(), params.get("Defined"), sa).get(0);
+        } else if (tgt.getMinTargets(sa.getSourceCard(), sa) > 1) {
+            CardList list2 = AllZone.getComputerPlayer().getCardsIn(ZoneType.Battlefield);
+            list2 = list2.getValidCards(tgt.getValidTgts(), AllZone.getComputerPlayer(), this.hostCard);
+            object2 = CardFactoryUtil.getWorstAI(list2);
+            tgt.addTarget(object2);
+        }
+        if (object1 == null || object2 == null) {
+            return false;
+        }
+        if (CardFactoryUtil.evaluateCreature(object1) > CardFactoryUtil.evaluateCreature(object2) + 40) {
+            tgt.addTarget(object1);
+            return MyRandom.getRandom().nextFloat() <= Math.pow(.6667, sa.getActivationsThisTurn());
+        }
         return false;
     }