TCPlayerbotCore/src/server/game/Grids/GridLoader.h

/*
 * Copyright (C) 2008-2011 TrinityCore <http://www.trinitycore.org/>
 * Copyright (C) 2005-2009 MaNGOS <http://getmangos.com/>
 *
 * 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_GRIDLOADER_H
#define TRINITY_GRIDLOADER_H

/**
  @class GridLoader
  The GridLoader is working in conjuction with the Grid and responsible
  for loading and unloading object-types (one or more) when objects
  enters a grid.  Unloading is scheduled and might be canceled if
  an interested object re-enters.  GridLoader does not do the actuall
  loading and unloading but implements as a template pattern that
  delicate its loading and unloading for the actualy loader and unloader.
  GridLoader manages the grid (both local and remote).
 */

#include "Define.h"
#include "Grid.h"
#include "TypeContainerVisitor.h"

template
<
class ACTIVE_OBJECT,
class WORLD_OBJECT_TYPES,
class GRID_OBJECT_TYPES
>
class GridLoader
{
    public:

        /** Loads the grid
         */
        template<class LOADER>
            void Load(Grid<ACTIVE_OBJECT, WORLD_OBJECT_TYPES, GRID_OBJECT_TYPES> &grid, LOADER &loader)
        {
            grid.LockGrid();
            loader.Load(grid);
            grid.UnlockGrid();
        }

        /** Stop the grid
         */
        template<class STOPER>
            void Stop(Grid<ACTIVE_OBJECT, WORLD_OBJECT_TYPES, GRID_OBJECT_TYPES> &grid, STOPER &stoper)
        {
            grid.LockGrid();
            stoper.Stop(grid);
            grid.UnlockGrid();
        }
        /** Unloads the grid
         */
        template<class UNLOADER>
            void Unload(Grid<ACTIVE_OBJECT, WORLD_OBJECT_TYPES, GRID_OBJECT_TYPES> &grid, UNLOADER &unloader)
        {
            grid.LockGrid();
            unloader.Unload(grid);
            grid.UnlockGrid();
        }
};
#endif