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template<typename Type> class FSingleton {
private: static Type* m_pInstance;
public: FSingleton() { m_pInstance = static_cast<ReturnType>(this); } virtual ~FSingleton() { m_pInstance=nullptr; }
virtual void InitSingleton() {}
virtual void ReleasePtr() { if (m_pInstance != nullptr) { delete m_pInstance; } m_pInstance = nullptr; }
static Type* CreateInstance() { if (m_pInstance == nullptr) { m_pInstance = new Type(); } return m_pInstance; }
static Type& GetInstance() { return *m_pInstance; }
static Type* GetInstancePtr() { return m_pInstance; }
static bool IsValid() { return m_pInstance != nullptr; } };
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