From 36444b94968f7a44a362e305aec28871dc05969c Mon Sep 17 00:00:00 2001
From: LevelX2 <ludwig.hirth@online.de>
Date: Sat, 23 Aug 2014 18:00:36 +0200
Subject: [PATCH] Added new MageObjectReference class that checks also
 zoneChangeCounter for object comparison.

---
 Mage/src/mage/MageObjectReference.java | 119 +++++++++++++++++++++++++
 1 file changed, 119 insertions(+)
 create mode 100644 Mage/src/mage/MageObjectReference.java

diff --git a/Mage/src/mage/MageObjectReference.java b/Mage/src/mage/MageObjectReference.java
new file mode 100644
index 00000000000..8a023c5d84c
--- /dev/null
+++ b/Mage/src/mage/MageObjectReference.java
@@ -0,0 +1,119 @@
+/*
+ *  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;
+
+import java.util.UUID;
+import mage.cards.Card;
+import mage.game.Game;
+import mage.game.permanent.Permanent;
+
+/**
+ * A object reference that takes zone changes into account.
+ *
+ * @author LevelX2
+ */
+
+public class MageObjectReference implements Comparable<MageObjectReference> {
+
+    private final UUID sourceId;
+    private final int zoneChangeCounter;
+
+    public MageObjectReference(Permanent permanent) {
+        this.sourceId = permanent.getId();
+        this.zoneChangeCounter = permanent.getZoneChangeCounter();
+    }
+
+    public MageObjectReference(Card card) {
+        this.sourceId = card.getId();
+        this.zoneChangeCounter = card.getZoneChangeCounter();
+    }
+
+    public MageObjectReference(UUID sourceId, Game game) {
+        MageObject mageObject = game.getObject(sourceId);
+        this.sourceId = sourceId;
+        if (mageObject instanceof Permanent) {
+            this.zoneChangeCounter = ((Permanent)mageObject).getZoneChangeCounter();
+        } else if (mageObject instanceof Card) {
+            this.zoneChangeCounter = ((Card)mageObject).getZoneChangeCounter();
+        } else {
+            zoneChangeCounter = 0;
+        }
+    }
+
+    public UUID getSourceId() {
+        return sourceId;
+    }
+
+    public int getZoneChangeCounter() {
+        return zoneChangeCounter;
+    }
+
+    @Override
+    public int compareTo(MageObjectReference o) {
+        if (o.getSourceId().equals(this.sourceId)) {
+            return o.getZoneChangeCounter() - this.zoneChangeCounter;
+        }
+        return o.getSourceId().compareTo(sourceId);
+    }
+
+    @Override
+    public boolean equals(Object v) {
+        if (v instanceof MageObjectReference) {
+            if (((MageObjectReference)v).getSourceId().equals(this.sourceId)) {
+                return ((MageObjectReference)v).getZoneChangeCounter() == this.zoneChangeCounter;
+            }
+        }
+        return false;
+    }
+
+    @Override
+    public int hashCode() {
+        int hash = 7;
+        hash = 17 * hash + (this.sourceId != null ? this.sourceId.hashCode() + this.zoneChangeCounter : 0);
+        return hash;
+    }
+
+    public boolean refersTo(Permanent permanent) {
+        return permanent.getZoneChangeCounter()== zoneChangeCounter && permanent.getId().equals(sourceId);
+    }
+
+    public boolean refersTo(Card card) {
+        return card.getZoneChangeCounter()== zoneChangeCounter && card.getId().equals(sourceId);
+    }
+
+    public boolean refersTo(MageObject mageObject) {
+        if (mageObject instanceof Permanent) {
+            return equals(((Permanent)mageObject));
+        } else if (mageObject instanceof Card) {
+            return equals(((Card)mageObject));
+        }
+        return mageObject.getId().equals(sourceId);
+    }
+
+}