74 lines
1.5 KiB
C++
74 lines
1.5 KiB
C++
#pragma once
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/* -*-c++-*-
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* dtEntity Game and Simulation Engine
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*
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* This library is free software; you can redistribute it and/or modify it under
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* the terms of the GNU Lesser General Public License as published by the Free
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* Software Foundation; either version 2.1 of the License, or (at your option)
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* any later version.
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*
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* This library is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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* FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
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* details.
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*
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* You should have received a copy of the GNU Lesser General Public License
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* along with this library; if not, write to the Free Software Foundation, Inc.,
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* 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*
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* Martin Scheffler
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*/
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namespace dtEntity
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{
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/** simple singleton class. Not thread safe!
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*/
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template <typename T>
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class Singleton
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{
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public:
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static T& GetInstance()
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{
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if (mInstance == 0)
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{
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mInstance = new T;
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}
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return *mInstance;
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};
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static void DestroyInstance()
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{
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if(mInstance != 0)
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{
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delete mInstance;
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mInstance = 0;
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}
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}
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protected:
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Singleton()
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{
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};
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virtual ~Singleton()
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{
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};
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private:
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Singleton(const Singleton& source)
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{
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};
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static T* mInstance;
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};
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template <typename T> T* Singleton<T>::mInstance = 0;
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}
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