#ifndef INTERFACE_H
#define INTERFACE_H

#include "tier0/platform.h"

abstract_class IInterface 
{
public:
	virtual void Init() = 0;
	virtual void Frame() = 0;
	virtual void Deinit() = 0;
};

typedef IInterface*( *InterfaceRegistryFn )( void );

class CInterfaceRegistry
{
public:
	CInterfaceRegistry( const char *szName, InterfaceRegistryFn pfn );
};


#define DECLARE_ENGINE_INTERFACE(iface, impl) \
IInterface *__interface_alloc_##impl() \
{ \
	return new impl; \
}; \
CInterfaceRegistry __interface_##iface##_registry(#iface, __interface_alloc_##impl); \
I##iface *iface() { \
	static I##iface *pInterface = (I##iface*)__interface_alloc_##impl(); \
	return pInterface; \
}

#endif