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131 lines
4.4 KiB
Objective-C
131 lines
4.4 KiB
Objective-C
/*
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* Copyright (C) 2005-2010 MaNGOS <http://getmangos.com/>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#ifndef MANGOS_GRID_H
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#define MANGOS_GRID_H
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/*
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@class Grid
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Grid is a logical segment of the game world represented inside MaNGOS.
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Grid is bind at compile time to a particular type of object which
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we call it the object of interested. There are many types of loader,
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specially, dynamic loader, static loader, or on-demand loader. There's
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a subtle difference between dynamic loader and on-demand loader but
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this is implementation specific to the loader class. From the
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Grid's perspective, the loader meets its API requirement is suffice.
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*/
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#include "Platform/Define.h"
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#include "Policies/ThreadingModel.h"
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#include "TypeContainer.h"
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#include "TypeContainerVisitor.h"
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// forward declaration
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template<class A, class T, class O> class GridLoader;
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template
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<
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class ACTIVE_OBJECT,
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class WORLD_OBJECT_TYPES,
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class GRID_OBJECT_TYPES,
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class ThreadModel = MaNGOS::SingleThreaded<ACTIVE_OBJECT>
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>
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class MANGOS_DLL_DECL Grid
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{
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// allows the GridLoader to access its internals
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template<class A, class T, class O> friend class GridLoader;
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public:
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/** destructor to clean up its resources. This includes unloading the
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grid if it has not been unload.
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*/
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~Grid() {}
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/** an object of interested enters the grid
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*/
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template<class SPECIFIC_OBJECT> bool AddWorldObject(SPECIFIC_OBJECT *obj)
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{
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return i_objects.template insert<SPECIFIC_OBJECT>(obj);
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}
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/** an object of interested exits the grid
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*/
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template<class SPECIFIC_OBJECT> bool RemoveWorldObject(SPECIFIC_OBJECT *obj)
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{
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return i_objects.template remove<SPECIFIC_OBJECT>(obj);
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}
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/** Refreshes/update the grid. This required for remote grids.
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*/
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void RefreshGrid(void) { /* TBI */}
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/** Locks a grid. Any object enters must wait until the grid is unlock.
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*/
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void LockGrid(void) { /* TBI */ }
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/** Unlocks the grid.
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*/
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void UnlockGrid(void) { /* TBI */ }
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/** Grid visitor for grid objects
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*/
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template<class T> void Visit(TypeContainerVisitor<T, TypeMapContainer<GRID_OBJECT_TYPES> > &visitor)
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{
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visitor.Visit(i_container);
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}
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/** Grid visitor for world objects
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*/
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template<class T> void Visit(TypeContainerVisitor<T, TypeMapContainer<WORLD_OBJECT_TYPES> > &visitor)
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{
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visitor.Visit(i_objects);
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}
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/** Returns the number of object within the grid.
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*/
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unsigned int ActiveObjectsInGrid(void) const { return m_activeGridObjects.size()+i_objects.template Count<ACTIVE_OBJECT>(); }
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/** Inserts a container type object into the grid.
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*/
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template<class SPECIFIC_OBJECT> bool AddGridObject(SPECIFIC_OBJECT *obj)
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{
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if(obj->isActiveObject())
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m_activeGridObjects.insert(obj);
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return i_container.template insert<SPECIFIC_OBJECT>(obj);
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}
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/** Removes a containter type object from the grid
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*/
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template<class SPECIFIC_OBJECT> bool RemoveGridObject(SPECIFIC_OBJECT *obj)
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{
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if(obj->isActiveObject())
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m_activeGridObjects.erase(obj);
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return i_container.template remove<SPECIFIC_OBJECT>(obj);
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}
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private:
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typedef typename ThreadModel::Lock Guard;
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typedef typename ThreadModel::VolatileType VolatileType;
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TypeMapContainer<GRID_OBJECT_TYPES> i_container;
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TypeMapContainer<WORLD_OBJECT_TYPES> i_objects;
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typedef std::set<void*> ActiveGridObjects;
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ActiveGridObjects m_activeGridObjects;
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};
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#endif
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