Replaced unnecessary custom shuffle methods with std::random_shuffle<>.

projects/mtg/src/MTGGameZones.cpp

@@ -574,14 +574,7 @@ void MTGGameZone::cleanupPhase()
 
 void MTGGameZone::shuffle()
 {
-    int i;
-    for (i = 0; i < (nb_cards); i++)
-    {
-        int r = i + (WRand() % (nb_cards - i)); // Random remaining position.
-        MTGCardInstance * temp = cards[i];
-        cards[i] = cards[r];
-        cards[r] = temp;
-    }
+    std::random_shuffle(cards.begin(), cards.end());
 }
 
 void MTGGameZone::addCard(MTGCardInstance * card)

projects/mtg/src/WDataSrc.cpp

@@ -284,30 +284,7 @@ bool WSrcCards::setOffset(int pos)
 
 void WSrcCards::Shuffle()
 {
-    vector<MTGCard*> a;
-    MTGCard * temp;
-    vector<MTGCard*>::iterator k;
-
-    while (cards.size())
-    {
-        k = cards.begin();
-        k += rand() % cards.size();
-        temp = *k;
-        cards.erase(k);
-        a.push_back(temp);
-    }
-#if defined WIN32 || defined LINUX //PC performs a double shuffle for less streaking.
-    while(a.size())
-    {
-        k = a.begin();
-        k += rand() % a.size();
-        temp = *k;
-        a.erase(k);
-        cards.push_back(temp);
-    }
-#else //PSP does a straight swap for speed.
-    cards.swap(a);
-#endif
+    std::random_shuffle(cards.begin(), cards.end());
     validate();
 }