* Added a deck hash tag that's shown at the start of the game log to be able to identify a deck.

Mage.Common/src/mage/utils/CardUtil.java

@@ -1,8 +1,8 @@
 package mage.utils;
 
-import mage.constants.CardType;
 import mage.cards.Card;
 import mage.cards.MagePermanent;
+import mage.constants.CardType;
 import mage.view.CardView;
 
 /**

Mage.Common/src/mage/utils/DeckBuilder.java

@@ -44,8 +44,8 @@ public class DeckBuilder {
         deckSize = deckCardSize;
         deck = new Deck();
 
-        final Collection<MageScoredCard> remainingCards = new ArrayList<MageScoredCard>();
+        final Collection<MageScoredCard> remainingCards = new ArrayList<>();
-        Set<String> names = new HashSet<String>();
+        Set<String> names = new HashSet<>();
         for (final Card card : spellCardPool) {
             if (names.contains(card.getName())) {
                 continue;
@@ -155,7 +155,7 @@ public class DeckBuilder {
     private static void addLandsToDeck(List<ColoredManaSymbol> allowedColors, List<String> setsToUse, List<Card> landCardPool, RateCallback callback) {
 
         // Calculate statistics per color.
-        final Map<String, Integer> colorCount = new HashMap<String, Integer>();
+        final Map<String, Integer> colorCount = new HashMap<>();
         for (final Card card : deck.getCards()) {
 
             for (String symbol : card.getManaCost().getSymbols()) {
@@ -170,7 +170,7 @@ public class DeckBuilder {
                     if (count > 0) {
                         Integer typeCount = colorCount.get(symbol);
                         if (typeCount == null) {
-                            typeCount = new Integer(0);
+                            typeCount = 0;
                         }
                         typeCount += 1;
                         colorCount.put(symbol, typeCount);
@@ -180,7 +180,7 @@ public class DeckBuilder {
         }
 
         // Add suitable non basic lands to deck in order of pack.
-        final Map<String, Integer> colorSource = new HashMap<String, Integer>();
+        final Map<String, Integer> colorSource = new HashMap<>();
         for (final ColoredManaSymbol color : ColoredManaSymbol.values()) {
             colorSource.put(color.toString(), 0);
         }
@@ -236,7 +236,7 @@ public class DeckBuilder {
     private static class MageScoredCard {
 
         private Card card;
-        private int score;
+        private final int score;
 
         private static final int SINGLE_PENALTY[] = {0, 1, 1, 3, 6, 9};
         //private static final int DOUBLE_PENALTY[] = { 0, 0, 1, 2, 4, 6 };
@@ -266,10 +266,10 @@ public class DeckBuilder {
 
         private int getManaCostScore(Card card, List<ColoredManaSymbol> allowedColors) {
             int converted = card.getManaCost().convertedManaCost();
-            final Map<String, Integer> singleCount = new HashMap<String, Integer>();
+            final Map<String, Integer> singleCount = new HashMap<>();
             int maxSingleCount = 0;
             int multicolor = 0;
-            Set<String> colors = new HashSet<String>();
+            Set<String> colors = new HashSet<>();
             for (String symbol : card.getManaCost().getSymbols()) {
                 int count = 0;
                 symbol = symbol.replace("{", "").replace("}", "");
@@ -289,7 +289,7 @@ public class DeckBuilder {
                     }
                     Integer typeCount = singleCount.get(symbol);
                     if (typeCount == null) {
-                        typeCount = new Integer(0);
+                        typeCount = 0;
                     }
                     typeCount += 1;
                     singleCount.put(symbol, typeCount);

Mage/src/mage/cards/decks/Deck.java

@@ -29,18 +29,25 @@
 package mage.cards.decks;
 
 import java.io.Serializable;
+import java.security.MessageDigest;
+import java.security.NoSuchAlgorithmException;
+import java.util.ArrayList;
+import java.util.Collections;
 import java.util.LinkedHashSet;
+import java.util.List;
 import java.util.Set;
 import mage.cards.Card;
 import mage.cards.repository.CardInfo;
 import mage.cards.repository.CardRepository;
 import mage.game.GameException;
+import mage.util.DeckUtil;
 
 public class Deck implements Serializable {
 
     private String name;
     private final Set<Card> cards = new LinkedHashSet<>();
     private final Set<Card> sideboard = new LinkedHashSet<>();
+    private long deckHashCode = 0;
 
     public static Deck load(DeckCardLists deckCardLists) throws GameException {
         return Deck.load(deckCardLists, false);
@@ -53,23 +60,39 @@ public class Deck implements Serializable {
     public static Deck load(DeckCardLists deckCardLists, boolean ignoreErrors, boolean mockCards) throws GameException {
         Deck deck = new Deck();
         deck.setName(deckCardLists.getName());
+        List<String> deckCardNames = new ArrayList<>();
         for (DeckCardInfo deckCardInfo: deckCardLists.getCards()) {
             Card card = createCard(deckCardInfo, mockCards);
             if (card != null) {
                 deck.cards.add(card);
+                deckCardNames.add(card.getName());
             } else if (!ignoreErrors) {
                 throw createCardNotFoundGameException(deckCardInfo, deckCardLists.getName());
             }
         }
+        List<String> sbCardNames = new ArrayList<>();
         for (DeckCardInfo deckCardInfo: deckCardLists.getSideboard()) {
             Card card = createCard(deckCardInfo, mockCards);
             if (card != null) {
                 deck.sideboard.add(card);
+                sbCardNames.add(card.getName());
             } else if (!ignoreErrors) {
                 throw createCardNotFoundGameException(deckCardInfo, deckCardLists.getName());
             }
         }
-
+        Collections.sort(deckCardNames);
+        Collections.sort(sbCardNames);
+        String deckString = deckCardNames.toString() + sbCardNames.toString();
+        deck.setDeckHashCode(DeckUtil.fixedHash(deckString));
+//        try{
+//            MessageDigest messageDigest = MessageDigest.getInstance("SHA-256");
+//            messageDigest.update(deckString.getBytes());
+//            String encryptedString = new String(messageDigest.digest());
+//            deck.setDeckHashCode(encryptedString.hashCode());
+//        }
+//        catch (NoSuchAlgorithmException e) {
+//            // nothing
+//        }
         return deck;
     }
 
@@ -137,4 +160,13 @@ public class Deck implements Serializable {
     public Set<Card> getSideboard() {
         return sideboard;
     }
+
+    public long getDeckHashCode() {
+        return deckHashCode;
+    }
+
+    public void setDeckHashCode(long deckHashCode) {
+        this.deckHashCode = deckHashCode;
+    }
+
 }

Mage/src/mage/game/match/MatchImpl.java

@@ -400,6 +400,7 @@ public abstract class MatchImpl implements Match {
         if (player != null) {
             // make sure the deck name (needed for Tiny Leaders) won't get lost by sideboarding
             deck.setName(player.getDeck().getName());
+            deck.setDeckHashCode(player.getDeck().getDeckHashCode());
             player.submitDeck(deck);
         }
         synchronized (this) {
@@ -425,6 +426,7 @@ public abstract class MatchImpl implements Match {
                 sb.append(" QUITTED");
             }
             sb.append("<br/>");
+            sb.append("DeckHash: ").append(mp.getDeck().getDeckHashCode()).append("<br/>");
         }
         if (getDraws() > 0) {
             sb.append("   Draws: ").append(getDraws()).append("<br/>");

Mage/src/mage/game/match/MatchPlayer.java

@@ -90,6 +90,7 @@ public class MatchPlayer {
         if (this.deck != null) {
             // preserver deck name, important for Tiny Leaders format
             deck.setName(this.getDeck().getName());
+            deck.setDeckHashCode(this.getDeck().getDeckHashCode());
         }
         this.deck = deck;
     }

Mage/src/mage/players/PlayerImpl.java

@@ -2783,13 +2783,13 @@ public abstract class PlayerImpl implements Player, Serializable {
                 card = game.getCard(card.getId());
             }
             if (!game.isSimulation()) {
-                StringBuilder sb = new StringBuilder(this.getName()).append(" puts ").append(withName ? card.getLogName() : "a face down card ");
+                StringBuilder sb = new StringBuilder(this.getName()).append(" puts ").append(withName ? card.getLogName() : "a face down card");
                 switch(fromZone) {
                     case EXILED:
-                        sb.append("from exile zone ");
+                        sb.append(" from exile zone ");
                         break;
                     default:
-                        sb.append(fromZone != null ? new StringBuilder("from ").append(fromZone.toString().toLowerCase(Locale.ENGLISH)).append(" ") : "");
+                        sb.append(fromZone != null ? new StringBuilder(" from ").append(fromZone.toString().toLowerCase(Locale.ENGLISH)).append(" ") : "");
                         break;
                 }                
                 sb.append(card.getOwnerId().equals(this.getId()) ? "into his or her hand" : "into its owner's hand");
@@ -2927,7 +2927,7 @@ public abstract class PlayerImpl implements Player, Serializable {
                     card = game.getCard(card.getId());
                 }
                 game.informPlayers(new StringBuilder(this.getName())
-                        .append(" moves ").append(withName ? card.getLogName() : "a card face down ")
+                        .append(" moves ").append(withName ? card.getLogName() : "a card face down").append(" ")
                         .append(fromZone != null ? new StringBuilder("from ").append(fromZone.toString().toLowerCase(Locale.ENGLISH)).append(" ") : "")
                         .append("to the exile zone").toString());
             }

Mage/src/mage/util/DeckUtil.java

@@ -0,0 +1,45 @@
+/*
+ *  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.util;
+
+/**
+ *
+ * @author LevelX2
+ */
+public class DeckUtil {
+
+    public static long fixedHash(String string) {
+        long h = 1125899906842597L; // prime
+        int len = string.length();
+
+        for (int i = 0; i < len; i++) {
+            h = 31 * h + string.charAt(i);
+        }
+        return h;
+    }
+}