ObjectGridLoader.h

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/*
 * This file is part of the TrinityCore Project. See AUTHORS file for Copyright information
 *
 * This program is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License as published by the
 * Free Software Foundation; either version 2 of the License, or (at your
 * option) any later version.
 *
 * This program is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
 * more details.
 *
 * You should have received a copy of the GNU General Public License along
 * with this program. If not, see <http://www.gnu.org/licenses/>.
 */
 
#ifndef TRINITY_OBJECTGRIDLOADER_H
#define TRINITY_OBJECTGRIDLOADER_H
 
#include "Define.h"
#include "GridDefines.h"
#include "Cell.h"
 
class MapObject;
class ObjectGuid;
class ObjectWorldLoader;
 
class TC_GAME_API ObjectGridLoaderBase
{
 public:
 ObjectGridLoaderBase(NGridType& grid, Map* map, Cell const& cell)
 : i_cell(cell), i_grid(grid), i_map(map), i_gameObjects(0), i_creatures(0), i_corpses(0), i_areaTriggers(0)
 { }
 
 static void SetObjectCell(MapObject* obj, CellCoord const& cellCoord);
 
 uint32 GetLoadedCreatures() const { return i_creatures; }
 uint32 GetLoadedGameObjects() const { return i_gameObjects; }
 uint32 GetLoadedCorpses() const { return i_corpses; }
 uint32 GetLoadedAreaTriggers() const { return i_areaTriggers; }
 
 protected:
 Cell i_cell;
 NGridType &i_grid;
 Map* i_map;
 uint32 i_gameObjects;
 uint32 i_creatures;
 uint32 i_corpses;
 uint32 i_areaTriggers;
};
 
class TC_GAME_API ObjectGridLoader : public ObjectGridLoaderBase
{
 friend class ObjectWorldLoader;
 
 public:
 ObjectGridLoader(NGridType& grid, Map* map, Cell const& cell)
 : ObjectGridLoaderBase(grid, map, cell)
 { }
 
 void Visit(GameObjectMapType &m);
 void Visit(CreatureMapType &m);
 void Visit(AreaTriggerMapType &m);
 void Visit(CorpseMapType &) const { }
 void Visit(DynamicObjectMapType&) const { }
 void Visit(SceneObjectMapType&) const { }
 void Visit(ConversationMapType&) const { }
 
 void LoadN();
};
 
class TC_GAME_API PersonalPhaseGridLoader : public ObjectGridLoaderBase
{
 public:
 PersonalPhaseGridLoader(NGridType& grid, Map* map, Cell const& cell, ObjectGuid const& phaseOwner)
 : ObjectGridLoaderBase(grid, map, cell), _phaseId(0), _phaseOwner(phaseOwner)
 { }
 
 void Visit(GameObjectMapType &m);
 void Visit(CreatureMapType &m);
 void Visit(AreaTriggerMapType&) const { }
 void Visit(CorpseMapType&) const { }
 void Visit(DynamicObjectMapType&) const { }
 void Visit(SceneObjectMapType&) const { }
 void Visit(ConversationMapType&) const { }
 
 void Load(uint32 phaseId);
 
 private:
 uint32 _phaseId;
 ObjectGuid const& _phaseOwner;
};
 
//Stop the creatures before unloading the NGrid
class TC_GAME_API ObjectGridStoper
{
 public:
 void Visit(CreatureMapType &m);
 template<class T> void Visit(GridRefManager<T> &) { }
};
 
//Move the foreign creatures back to respawn positions before unloading the NGrid
class TC_GAME_API ObjectGridEvacuator
{
 public:
 void Visit(CreatureMapType &m);
 void Visit(GameObjectMapType &m);
 template<class T> void Visit(GridRefManager<T> &) { }
};
 
//Clean up and remove from world
class ObjectGridCleaner
{
 public:
 template<class T> void Visit(GridRefManager<T> &);
};
 
//Delete objects before deleting NGrid
class ObjectGridUnloader
{
 public:
 void Visit(CorpseMapType& /*m*/) { } // corpses are deleted with Map
 template<class T> void Visit(GridRefManager<T> &m);
};
#endif