[Refactor] Merged some similar abilities together

Mage/src/main/java/mage/abilities/common/DiscardedByOpponentTriggerAbility.java

@@ -0,0 +1,81 @@
+/*
+ *  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.abilities.TriggeredAbilityImpl;
+import mage.abilities.effects.Effect;
+import mage.constants.Zone;
+import mage.game.Game;
+import mage.game.events.GameEvent;
+import mage.game.events.GameEvent.EventType;
+import mage.game.stack.StackObject;
+
+/**
+ *
+ * @author Styxo
+ */
+public class DiscardedByOpponentTriggerAbility extends TriggeredAbilityImpl {
+
+    public DiscardedByOpponentTriggerAbility(Effect effect) {
+        this(effect, false);
+    }
+
+    public DiscardedByOpponentTriggerAbility(Effect effect, boolean optional) {
+        super(Zone.GRAVEYARD, effect, optional);
+    }
+
+    public DiscardedByOpponentTriggerAbility(final DiscardedByOpponentTriggerAbility ability) {
+        super(ability);
+    }
+
+    @Override
+    public DiscardedByOpponentTriggerAbility copy() {
+        return new DiscardedByOpponentTriggerAbility(this);
+    }
+
+    @Override
+    public boolean checkEventType(GameEvent event, Game game) {
+        return event.getType() == EventType.DISCARDED_CARD;
+    }
+
+    @Override
+    public boolean checkTrigger(GameEvent event, Game game) {
+        if (getSourceId().equals(event.getTargetId())) {
+            StackObject stackObject = game.getStack().getStackObject(event.getSourceId());
+            if (stackObject != null) {
+                return game.getOpponents(this.getControllerId()).contains(stackObject.getControllerId());
+            }
+        }
+        return false;
+    }
+
+    @Override
+    public String getRule() {
+        return "When a spell or ability an opponent controls causes you to discard {this}, " + super.getRule();
+    }
+}