- Fixed issues and memory leaks related to decks unlocking

- Fixed an issue where a GameObserver could be null for some mana costs associated to a targetChooser

projects/mtg/src/DeckManager.cpp

@@ -119,6 +119,52 @@ void DeckManager::AddMetaData( const string& filename, bool isAI )
     }
 }
 
+void DeckManager::DeleteMetaData( const string& filename, bool isAI )
+{
+    map<string, StatsWrapper *>::iterator it;
+    vector<DeckMetaData *>::iterator metaDataIter;
+
+    if (isAI)
+    {
+        it = aiDeckStatsMap.find(filename);
+        if (it != aiDeckStatsMap.end())
+        {
+            SAFE_DELETE(it->second);
+            aiDeckStatsMap.erase(it);
+        }
+
+        for( metaDataIter =  mInstance->aiDeckOrderList.begin(); metaDataIter !=  mInstance->aiDeckOrderList.end(); ++metaDataIter)
+        {
+            if ((*metaDataIter)->getFilename() == filename)
+            {
+                SAFE_DELETE( *metaDataIter );
+                aiDeckOrderList.erase(metaDataIter);
+                break;
+            }
+        }
+    }
+    else 
+    {
+        it = playerDeckStatsMap.find(filename);
+        if (it != playerDeckStatsMap.end())
+        {
+            SAFE_DELETE(it->second);
+            playerDeckStatsMap.erase(it);
+        }
+
+        for( metaDataIter =  mInstance->playerDeckOrderList.begin(); metaDataIter !=  mInstance->playerDeckOrderList.end(); ++metaDataIter)
+        {
+            if ((*metaDataIter)->getFilename() == filename)
+            {
+                SAFE_DELETE( *metaDataIter );
+                playerDeckOrderList.erase(metaDataIter);
+                break;
+            }
+        }
+    }
+}
+
+
 StatsWrapper * DeckManager::getExtendedStatsForDeckId( int deckId, MTGAllCards *collection, bool isAI )
 {
     DeckMetaData *selectedDeck = getDeckMetaDataById( deckId, isAI );

projects/mtg/src/GameState.cpp

@@ -51,6 +51,7 @@ vector<DeckMetaData *> GameState::BuildDeckList(const string& path, const string
 
         if (meta)
         {
+            found = 1;
             //Check if the deck is unlocked based on sets etc...
             bool unlocked = true;
             vector<int> unlockRequirements = meta->getUnlockRequirements();
@@ -65,7 +66,6 @@ vector<DeckMetaData *> GameState::BuildDeckList(const string& path, const string
 
             if (unlocked)
             {
-                found = 1;
                 if (statsPlayer)
                 {
                     std::ostringstream aiStatsDeckName;
@@ -85,10 +85,17 @@ vector<DeckMetaData *> GameState::BuildDeckList(const string& path, const string
                     meta->mStatsFilename = options.profileFile(playerStatsDeckName.str());
                     meta->mIsAI = false;
                 }
-
                 retList.push_back(meta);
-                nbDecks++;
             }
+            else
+            {
+                //updateMetaDataList in DeckManager.cpp performs some weird magic, swapping data between its cache and the "retList" from this function
+                //Bottom line, we need to guarantee retList contains exactly the same items as (or updated versions of) the items in DeckManager Cache
+                //In other words, any meta data that didn't make it to retList in this function must be erased from the DeckManager cache
+                deckManager->DeleteMetaData(filename.str(), isAI);
+            }
+
+            nbDecks++;
         }
         meta = NULL;
     }

projects/mtg/src/TargetChooser.cpp

@@ -826,6 +826,13 @@ bool TargetChooser::validTargetsExist(int maxTargets)
 int TargetChooser::countValidTargets()
 {
     int result = 0;
+
+    //Some TargetChooser objects are created at a point where no observer is available
+    // see  ManaCost::parseManaCost which sets observer to NULL in some cases (namely: when the cards database is loaded at game start)
+    // This is a workaround for this situation
+    if (!observer && source) 
+        observer = source->getObserver();
+
     for (int i = 0; i < 2; ++i)
     {
         assert(observer);