core/EntityManager.h

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// /////////////////////////////////////////////////////////////////////////////
//
// Name:            EntityManager.h
// Author:          Michael Bartsch (ZCCdark203)
//
// Desc :           Declaration of the EntityManager class.
//
// License:         Copyright (C) 2009 Michael Bartsch and Contributors
//
//                  This program is free software: you can redistribute it
//                  and/or modify it under the terms of the zlib/libpng License.
//                  See main.cpp for conditions of distribution and use.
//
// /////////////////////////////////////////////////////////////////////////////

#ifndef __ENTITYMANAGER_H__
#define __ENTITYMANAGER_H__

// Include files
#include "../dependencies.h"
#include "ReferenceCounted.h"
#include "Entity.h"

// Forward declarations
class Entity;


// EntityManager class
class EntityManager : public ReferenceCounted
{
public:

    // Initialisation and deinitialisation
    EntityManager();
    ~EntityManager();

    void init();
    void clear();

    // Reference counting
    void grab();
    void drop();

    // Methods
    bool addEntity(Entity *entity);
    Entity* createEntity(const std::string &name, Entity *parent = NULL, bool grab = true);
    Entity* createEntityFromXML(const std::string &fileName, Entity *parent = NULL,
                                AssetGroup *assets = NULL, bool grab = true);
    Entity* createEntityFromXML(IXMLReader *file, Entity *parent = NULL, AssetGroup *assets = NULL,
                                bool grab = true);

    Entity* getEntity(const u32 id);
    Entity* getEntity(const std::string &name);

    void removeEntities();
    bool removeEntity(Entity *entity);
    bool removeEntity(const u32 id);
    bool removeEntity(const std::string &name);

private:

    // Private members
    vector<Entity*> mEntities;
};

#endif

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