state.h

#ifndef _ELMA_STATE_H
#define _ELMA_STATE_H

#include <string>
#include "elma.h"

namespace elma {

    class StateMachine;


    class State {

        friend class StateMachine;

        public:

        State() : _name("unnamed state"), _state_machine_ptr(NULL) {
            _id = _id_counter++;
        }

        State(std::string name) : _name(name), _state_machine_ptr(NULL) {
            _id = _id_counter++;
        }

        inline std::string name() { return _name; }

        inline int id() { return _id; }

        virtual void entry(const Event& e) = 0;

        virtual void during() = 0;

        virtual void exit(const Event& e) = 0;

        void emit(const Event& e);

        StateMachine& state_machine() { return *_state_machine_ptr; }

        private:
        std::string _name;
        int _id;
        static int _id_counter;
        StateMachine * _state_machine_ptr;

    };

}

#endif