*Prevent entering in instances if zone in combat - by Iskander

--HG--
branch : trunk

src/game/Group.cpp

@@ -1389,7 +1389,9 @@ bool Group::InCombatToInstance(uint32 instanceId)
     for(GroupReference *itr = GetFirstMember(); itr != NULL; itr = itr->next())
     {
         Player *pPlayer = itr->getSource();
-        if(pPlayer->getAttackers().size() && pPlayer->GetInstanceId() == instanceId)
+        if(pPlayer && pPlayer->getAttackers().size() && pPlayer->GetInstanceId() == instanceId && (pPlayer->GetMap()->IsRaid() || pPlayer->GetMap()->IsHeroic()))
+            for(std::set<Unit*>::const_iterator i = pPlayer->getAttackers().begin(); i!=pPlayer->getAttackers().end(); ++i)
+                if((*i) && (*i)->GetTypeId() == TYPEID_UNIT && ((Creature*)(*i))->GetCreatureInfo()->flags_extra & CREATURE_FLAG_EXTRA_INSTANCE_BIND)
                     return true;
     }
     return false;

src/game/Map.cpp

@@ -1762,7 +1762,7 @@ bool InstanceMap::CanEnter(Player *player)
 
     // cannot enter while players in the instance are in combat
     Group *pGroup = player->GetGroup();
-    if(!player->isGameMaster() && pGroup && pGroup->InCombatToInstance(GetInstanceId()) && player->isAlive() && player->GetMapId() != GetId())
+    if(!player->isGameMaster() && pGroup && pGroup->InCombatToInstance(GetInstanceId()) && player->GetMapId() != GetId())
     {
         player->SendTransferAborted(GetId(), TRANSFER_ABORT_ZONE_IN_COMBAT);
         return false;

src/game/MapInstanced.cpp

@@ -266,3 +266,11 @@ void MapInstanced::DestroyInstance(InstancedMaps::iterator &itr)
     delete itr->second;
     m_InstancedMaps.erase(itr++);
 }
+
+bool MapInstanced::CanEnter(Player *player)
+{
+    if(Map* map = GetInstance(player))
+        return map->CanEnter(player);
+
+    return false;
+}

src/game/MapInstanced.h

@@ -39,6 +39,7 @@ class TRINITY_DLL_DECL MapInstanced : public Map
         void RemoveAllObjectsInRemoveList();
         bool RemoveBones(uint64 guid, float x, float y);
         void UnloadAll(bool pForce);
+        bool CanEnter(Player* player);
 
         Map* GetInstance(const WorldObject* obj);
         Map* FindMap(uint32 InstanceId) { return _FindMap(InstanceId); }