cocos实现unity组件式

用法灵感来源于 Unity，打算改造 Cocos 以实现类似的组件式架构。

class SGComponent
                {
                public:
                	virtual void update(float delta){};
                	virtual void onStart(){}
                	virtual void onDestroy(){};
                	virtual void onCreate(){};
                };
                
                class AudioComponent :public SGComponent
                {
                public:
                };
                class RenderComponent :public SGComponent
                {
                public:
                };
                
                
                class GameObject
                {
                public:
                	template<class T>
                	SGComponent* GetComponent()
                	{
                	return nullptr;
                	};
                
                	template<>
                	SGComponent* GetComponent<AudioComponent>()
                	{
                	return this->_audio;
                	};
                
                    template<class T>void AddComponent(T * t){};
                
                	template<>void AddComponent(RenderComponent *t)
                	{
                		if (_render){}
                		this->_render = t;
                	};
                
                	template<>void  AddComponent(AudioComponent *t)
                	{
                		if (_audio){}
                		this->_audio = t;
                	};
                private:
                	AudioComponent*_audio = nullptr;
                	RenderComponent *_render = nullptr;
                };
                
                
                
                
                int main(int argc, char *argv[])
                {
                	_CrtDumpMemoryLeaks();
                
                	GameObject obj;
                	cout << obj.GetComponent<RenderComponent>();
                
                	system("pause");
                	return 0;
                }