Core/Loot: Add new config option "Rate.Drop.Item.ReferencedAmount" which allows multiplication of referenced loot count

Closes issue #814.

--HG--
branch : trunk

src/server/game/Loot/LootMgr.cpp

@@ -1231,7 +1231,8 @@ void LootTemplate::Process(Loot& loot, LootStore const& store, bool rate, uint16
             if (!Referenced)
                 continue;                                     // Error message already printed at loading stage
 
-            for (uint32 loop = 0; loop < i->maxcount; ++loop) // Ref multiplicator
+            uint32 maxcount = uint32(float(i->maxcount) * sWorld.getRate(RATE_DROP_ITEM_REFERENCED_AMOUNT));
+            for (uint32 loop = 0; loop < maxcount; ++loop)    // Ref multiplicator
                 Referenced->Process(loot, store, rate, lootMode, i->group);
         }
         else                                                  // Plain entries (not a reference, not grouped)

src/server/game/World/World.cpp

@@ -466,6 +466,7 @@ void World::LoadConfigSettings(bool reload)
     rate_values[RATE_DROP_ITEM_LEGENDARY]  = sConfig.GetFloatDefault("Rate.Drop.Item.Legendary", 1.0f);
     rate_values[RATE_DROP_ITEM_ARTIFACT]   = sConfig.GetFloatDefault("Rate.Drop.Item.Artifact", 1.0f);
     rate_values[RATE_DROP_ITEM_REFERENCED] = sConfig.GetFloatDefault("Rate.Drop.Item.Referenced", 1.0f);
+    rate_values[RATE_DROP_ITEM_REFERENCED_AMOUNT] = sConfig.GetFloatDefault("Rate.Drop.Item.ReferencedAmount", 1.0f);
     rate_values[RATE_DROP_MONEY]  = sConfig.GetFloatDefault("Rate.Drop.Money", 1.0f);
     rate_values[RATE_XP_KILL]     = sConfig.GetFloatDefault("Rate.XP.Kill", 1.0f);
     rate_values[RATE_XP_QUEST]    = sConfig.GetFloatDefault("Rate.XP.Quest", 1.0f);

src/server/game/World/World.h

@@ -329,6 +329,7 @@ enum Rates
     RATE_DROP_ITEM_LEGENDARY,
     RATE_DROP_ITEM_ARTIFACT,
     RATE_DROP_ITEM_REFERENCED,
+    RATE_DROP_ITEM_REFERENCED_AMOUNT,
     RATE_DROP_MONEY,
     RATE_XP_KILL,
     RATE_XP_QUEST,

src/server/worldserver/worldserver.conf.dist

@@ -1665,6 +1665,7 @@ Rate.Drop.Item.Epic = 1
 Rate.Drop.Item.Legendary = 1
 Rate.Drop.Item.Artifact = 1
 Rate.Drop.Item.Referenced = 1
+Rate.Drop.Item.ReferencedAmount = 1
 Rate.Drop.Money = 1
 Rate.XP.Kill    = 1
 Rate.XP.Quest   = 1