Added Mirran Spy.

Added SpellCastTriggeredAbility
Refactored cards to use SpellCastTriggeredAbility

Mage/src/mage/abilities/common/SpellCastTriggeredAbility.java

@@ -0,0 +1,82 @@
+/*
+ * 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.common;
+
+import mage.Constants.Zone;
+import mage.abilities.TriggeredAbilityImpl;
+import mage.abilities.effects.Effect;
+import mage.filter.FilterCard;
+import mage.game.Game;
+import mage.game.events.GameEvent;
+import mage.game.stack.Spell;
+
+/**
+ *
+ * @author North
+ */
+public class SpellCastTriggeredAbility extends TriggeredAbilityImpl<SpellCastTriggeredAbility> {
+
+    private static final FilterCard spellCard = new FilterCard("a spell");
+    protected FilterCard filter;
+
+    public SpellCastTriggeredAbility(Effect effect, boolean optional) {
+        super(Zone.BATTLEFIELD, effect, optional);
+        this.filter = spellCard;
+    }
+
+    public SpellCastTriggeredAbility(Effect effect, FilterCard filter, boolean optional) {
+        super(Zone.BATTLEFIELD, effect, optional);
+        this.filter = filter;
+    }
+
+    public SpellCastTriggeredAbility(final SpellCastTriggeredAbility ability) {
+        super(ability);
+        filter = ability.filter;
+    }
+
+    @Override
+    public boolean checkTrigger(GameEvent event, Game game) {
+        if (event.getType() == GameEvent.EventType.SPELL_CAST && event.getPlayerId().equals(this.getControllerId())) {
+            Spell spell = game.getStack().getSpell(event.getTargetId());
+            if (spell != null && filter.match(spell)) {
+                return true;
+            }
+        }
+        return false;
+    }
+
+    @Override
+    public String getRule() {
+        return "Whenever you cast " + filter.getMessage() + ", " + super.getRule();
+    }
+
+    @Override
+    public SpellCastTriggeredAbility copy() {
+        return new SpellCastTriggeredAbility(this);
+    }
+}