- Added Ricochet Trap with a new Predicate.

Mage.Sets/src/mage/sets/worldwake/RicochetTrap.java

@@ -0,0 +1,180 @@
+/*
+ *  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.sets.worldwake;
+
+import java.util.UUID;
+import mage.Constants;
+import mage.Constants.CardType;
+import mage.Constants.Rarity;
+import mage.Constants.WatcherScope;
+import mage.abilities.Ability;
+import mage.abilities.costs.AlternativeCostImpl;
+import mage.abilities.costs.mana.ColoredManaCost;
+import mage.abilities.effects.OneShotEffect;
+import mage.cards.CardImpl;
+import mage.filter.FilterSpell;
+import mage.filter.predicate.mageobject.NumberOfTargetsPredicate;
+import mage.game.Game;
+import mage.game.events.GameEvent;
+import mage.game.events.GameEvent.EventType;
+import mage.game.stack.Spell;
+import mage.target.TargetSpell;
+import mage.watchers.WatcherImpl;
+
+/**
+ *
+ * @author jeffwadsworth
+ */
+public class RicochetTrap extends CardImpl<RicochetTrap> {
+
+    final static private FilterSpell filter = new FilterSpell();
+
+    static {
+        filter.add(new NumberOfTargetsPredicate(1));
+    }
+
+    public RicochetTrap(UUID ownerId) {
+        super(ownerId, 87, "Ricochet Trap", Rarity.UNCOMMON, new CardType[]{CardType.INSTANT}, "{3}{R}");
+        this.expansionSetCode = "WWK";
+        this.subtype.add("Trap");
+
+        this.color.setRed(true);
+
+        // If an opponent cast a blue spell this turn, you may pay {R} rather than pay Ricochet Trap's mana cost.
+        this.getSpellAbility().addAlternativeCost(new RicochetTrapAlternativeCost());
+
+        // Change the target of target spell with a single target.
+        this.getSpellAbility().addEffect(new RicochetTrapEffect());
+        this.getSpellAbility().addTarget(new TargetSpell(filter));
+
+        this.addWatcher(new RicochetTrapWatcher());
+    }
+
+    public RicochetTrap(final RicochetTrap card) {
+        super(card);
+    }
+
+    @Override
+    public RicochetTrap copy() {
+        return new RicochetTrap(this);
+    }
+}
+
+class RicochetTrapWatcher extends WatcherImpl<RicochetTrapWatcher> {
+
+    public RicochetTrapWatcher() {
+        super("RicochetTrapWatcher", WatcherScope.GAME);
+    }
+
+    public RicochetTrapWatcher(final RicochetTrapWatcher watcher) {
+        super(watcher);
+    }
+
+    @Override
+    public RicochetTrapWatcher copy() {
+        return new RicochetTrapWatcher(this);
+    }
+
+    @Override
+    public void watch(GameEvent event, Game game) {
+        if (condition == true) //no need to check - condition has already occured
+        {
+            return;
+        }
+        if (event.getType() == EventType.SPELL_CAST
+                && game.getOpponents(controllerId).contains(event.getPlayerId())) {
+            Spell spell = game.getStack().getSpell(event.getTargetId());
+            if (spell.getColor().isBlue()) {
+                condition = true;
+            }
+        }
+    }
+
+    @Override
+    public void reset() {
+        super.reset();
+        condition = false;
+    }
+}
+
+class RicochetTrapAlternativeCost extends AlternativeCostImpl<RicochetTrapAlternativeCost> {
+
+    public RicochetTrapAlternativeCost() {
+        super("You may pay {R} rather than pay Ricochet Trap's mana cost");
+        this.add(new ColoredManaCost(Constants.ColoredManaSymbol.R));
+    }
+
+    public RicochetTrapAlternativeCost(final RicochetTrapAlternativeCost cost) {
+        super(cost);
+    }
+
+    @Override
+    public RicochetTrapAlternativeCost copy() {
+        return new RicochetTrapAlternativeCost(this);
+    }
+
+    @Override
+    public boolean isAvailable(Game game, Ability source) {
+        RicochetTrapWatcher watcher = (RicochetTrapWatcher) game.getState().getWatchers().get("RicochetTrapWatcher");
+        if (watcher != null && watcher.conditionMet()) {
+            return true;
+        }
+        return false;
+    }
+
+    @Override
+    public String getText() {
+        return "If an opponent cast a blue spell this turn, you may pay {R} rather than pay {this} mana cost";
+    }
+}
+
+class RicochetTrapEffect extends OneShotEffect<RicochetTrapEffect> {
+
+    public RicochetTrapEffect() {
+        super(Constants.Outcome.Neutral);
+        staticText = "Change the target of target spell with a single target";
+    }
+
+    public RicochetTrapEffect(final RicochetTrapEffect effect) {
+        super(effect);
+    }
+
+    @Override
+    public boolean apply(Game game, Ability source) {
+        Spell spell = game.getStack().getSpell(source.getFirstTarget());
+        if (spell != null && source.getControllerId() != null) {
+            return spell.chooseNewTargets(game, source.getControllerId());
+        }
+        return false;
+    }
+
+    @Override
+    public RicochetTrapEffect copy() {
+        return new RicochetTrapEffect(this);
+    }
+}

Mage/src/mage/filter/predicate/mageobject/NumberOfTargetsPredicate.java

@@ -0,0 +1,62 @@
+/*
+ *  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.filter.predicate.mageobject;
+
+import mage.MageObject;
+import mage.filter.predicate.Predicate;
+import mage.game.Game;
+import mage.game.stack.Spell;
+import mage.target.Targets;
+
+/**
+ *
+ * @author jeffwadsworth
+ */
+public class NumberOfTargetsPredicate implements Predicate<MageObject> {
+
+    private final int targets;
+
+    public NumberOfTargetsPredicate(int targets) {
+        this.targets = targets;
+    }
+
+    @Override
+    public boolean apply(MageObject input, Game game) {
+        Spell spell = game.getStack().getSpell(input.getId());
+        Targets target = spell.getSpellAbility().getTargets();
+        if (target.size() == targets) {
+            return true;
+        }
+        return false;
+    }
+
+    @Override
+    public String toString() {
+        return "Number of targets(" + targets + ')';
+    }
+}