StateMachine.hpp

#pragma once
#include "State.hpp"
#include <memory>
#include <stack>

namespace TicTacToe{
    typedef std::unique_ptr<State> StateRef;

    class StateMachine{
        public:
        StateMachine( ) { }
        ~StateMachine( ) { }

        void AddState(StateRef newState, bool isReplacing = true);
        void RemoveState( );

        void ProcessStateChanges( );

        StateRef& GetActiveState( );

        private:
        std::stack<StateRef> _states;
        StateRef _newState;
        bool _isRemoving;
        bool _isAdding;
        bool _isReplacing;
    };
}