#ifndef ACT_CONTROLLER
#define ACT_CONTROLLER
#include "code/return.h"
class controller_t {
	public:
	enum error_t {
		none,
		unknown
	};
	enum event_t {
		start,
		stop
	};
	virtual void_t<error_t> on_event(event_t event_p) = 0;
};
#endif