include/SINGLETON.hpp

/*
*   SPACE Engine. A 2D game Engine.
*   Copyright (C) 2010  Christoph Ehlen.
*
*   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 3 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 SINGLETON_HPP_INCLUDED
#define SINGLETON_HPP_INCLUDED

#include "start_code.hpp"

namespace SPACE
{
    namespace Core
    {
        template <class T>
        class TSingleton
        {
            protected:
                static T* m_pSingleton;

            public:
                virtual ~TSingleton () {}

                inline static T* Get()
                {
                    if(!m_pSingleton)
                        m_pSingleton = new T;

                    return m_pSingleton;
                }

                static void Del()
                {
                    if(m_pSingleton)
                    {
                        delete(m_pSingleton);
                        m_pSingleton = NULL;
                    }
                }

        };

        template <class T>
        T* TSingleton<T>::m_pSingleton = 0;
    }
}

#endif // SINGLETON_HPP_INCLUDED

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