[12783] Create function to load active entities.

Note this function is considered WIP, and will require further work pending more features

Ideas and loop to load all grids on a map by Neo2003.

src/game/Creature.cpp

@@ -174,6 +174,11 @@ void Creature::AddToWorld()
         GetMap()->GetObjectsStore().insert<Creature>(GetObjectGuid(), (Creature*)this);
 
     Unit::AddToWorld();
+
+    // Make active if required
+    std::set<uint32> const* mapList = sWorld.getConfigForceLoadMapIds();
+    if ((mapList && mapList->find(GetMapId()) != mapList->end()) /*|| FlagsExtra & ACTIVE*/)
+        SetActiveObjectState(true);
 }
 
 void Creature::RemoveFromWorld()

src/game/Map.h

@@ -188,14 +188,14 @@ class MANGOS_DLL_SPEC Map : public GridRefManager<NGridType>
         MapDifficultyEntry const* GetMapDifficulty() const; // dependent from map difficulty
 
         bool Instanceable() const { return i_mapEntry && i_mapEntry->Instanceable(); }
-        // NOTE: this duplicate of Instanceable(), but Instanceable() can be changed when BG also will be instanceable
         bool IsDungeon() const { return i_mapEntry && i_mapEntry->IsDungeon(); }
         bool IsRaid() const { return i_mapEntry && i_mapEntry->IsRaid(); }
         bool IsNonRaidDungeon() const { return i_mapEntry && i_mapEntry->IsNonRaidDungeon(); }
         bool IsRaidOrHeroicDungeon() const { return IsRaid() || GetDifficulty() > DUNGEON_DIFFICULTY_NORMAL; }
         bool IsBattleGround() const { return i_mapEntry && i_mapEntry->IsBattleGround(); }
         bool IsBattleArena() const { return i_mapEntry && i_mapEntry->IsBattleArena(); }
         bool IsBattleGroundOrArena() const { return i_mapEntry && i_mapEntry->IsBattleGroundOrArena(); }
+        bool IsContinent() const { return i_mapEntry && i_mapEntry->IsContinent(); }
 
         // can't be NULL for loaded map
         MapPersistentState* GetPersistentState() const { return m_persistentState; }

src/game/MapManager.cpp

@@ -102,6 +102,8 @@ Map* MapManager::CreateMap(uint32 id, const WorldObject* obj)
         MANGOS_ASSERT(obj && obj->GetTypeId() == TYPEID_PLAYER);
         // create DungeonMap object
         m = CreateInstance(id, (Player*)obj);
+        // Load active objects for this map
+        sObjectMgr.LoadActiveEntities(m);
     }
     else
     {

src/game/ObjectMgr.cpp

@@ -9076,6 +9076,49 @@ void ObjectMgr::LoadVendorTemplates()
         sLog.outErrorDb("Table `npc_vendor_template` has vendor template %u not used by any vendors ", *vItr);
 }
 
+/* This function is supposed to take care of three things:
+ *  1) Load Transports on Map or on Continents
+ *  2) Load Active Npcs on Map or Continents
+ *  3) Load Everything dependend on config setting LoadAllGridsOnMaps
+ *
+ *  This function is currently WIP, hence many things are only existing as draft.
+ */
+void ObjectMgr::LoadActiveEntities(Map* _map)
+{
+    // Special case on startup - load continents
+    if (!_map)
+    {
+        uint32 continents[] = {0, 1, 530, 571};
+        for (int i = 0; i < countof(continents); ++i)
+        {
+            _map = sMapMgr.FindMap(continents[i]);
+            if (!_map)
+                _map = sMapMgr.CreateMap(continents[i], NULL);
+
+            if (_map)
+                LoadActiveEntities(_map);
+            else
+                sLog.outError("ObjectMgr::LoadActiveEntities - Unable to create Map %u", continents[i]);
+        }
+
+        return;
+    }
+
+    // Load active objects for _map
+    std::set<uint32> const* mapList = sWorld.getConfigForceLoadMapIds();
+    if (mapList && mapList->find(_map->GetId()) != mapList->end())
+    {
+        for (CreatureDataMap::const_iterator itr = mCreatureDataMap.begin(); itr != mCreatureDataMap.end(); ++itr)
+        {
+            if (itr->second.mapid == _map->GetId())
+                _map->ForceLoadGrid(itr->second.posX, itr->second.posY);
+        }
+    }
+    //else                                                // Normal case - Load all npcs that are active
+
+    // Load Transports on Map _map
+}
+
 void ObjectMgr::LoadNpcGossips()
 {
     m_mCacheNpcTextIdMap.clear();

src/game/ObjectMgr.h

@@ -137,7 +137,7 @@ struct MangosStringLocale
     uint32 Emote;
 };
 
-typedef UNORDERED_MAP<uint32, CreatureData> CreatureDataMap;
+typedef UNORDERED_MAP<uint32 /*guid*/, CreatureData> CreatureDataMap;
 typedef CreatureDataMap::value_type CreatureDataPair;
 
 class FindCreatureData
@@ -757,6 +757,9 @@ class ObjectMgr
         void LoadTrainerTemplates();
         void LoadTrainers() { LoadTrainers("npc_trainer", false); }
 
+        /// @param _map Map* of the map for which to load active entities. If NULL active entities on continents are loaded
+        void LoadActiveEntities(Map* _map);
+
         void LoadVehicleAccessory();
 
         std::string GeneratePetName(uint32 entry);

src/game/World.cpp

@@ -1455,6 +1455,10 @@ void World::SetInitialWorldSettings()
     m_timers[WUPDATE_EVENTS].SetInterval(nextGameEvent);    // depend on next event
     sLog.outString();
 
+    sLog.outString("Loading grids for active creatures or transports...");
+    sObjectMgr.LoadActiveEntities(NULL);
+    sLog.outString();
+
     // Delete all characters which have been deleted X days before
     Player::DeleteOldCharacters();
 

src/shared/revision_nr.h

@@ -1,4 +1,4 @@
 #ifndef __REVISION_NR_H__
 #define __REVISION_NR_H__
- #define REVISION_NR "12782"
+ #define REVISION_NR "12783"
 #endif // __REVISION_NR_H__