StateMachine.hpp

// Copyright (C) 2017 Jérôme Leclercq
// This file is part of the "Nazara Development Kit"
// For conditions of distribution and use, see copyright notice in Prerequesites.hpp

#pragma once

#ifndef NDK_STATEMACHINE_HPP
#define NDK_STATEMACHINE_HPP

#include <NDK/Prerequesites.hpp>
#include <NDK/State.hpp>
#include <memory>
#include <vector>

namespace Ndk
{
    class StateMachine
    {
        public:
            inline StateMachine(std::shared_ptr<State> originalState);
            StateMachine(const StateMachine&) = delete;
            inline StateMachine(StateMachine&& fsm) = default;
            inline ~StateMachine();

            inline void ChangeState(std::shared_ptr<State> state);

            inline const std::shared_ptr<State>& GetCurrentState() const;

            inline bool IsTopState(const State* state) const;

            inline std::shared_ptr<State> PopState();
            inline bool PopStatesUntil(std::shared_ptr<State> state);
            inline void PushState(std::shared_ptr<State> state);

            inline void SetState(std::shared_ptr<State> state);

            inline bool Update(float elapsedTime);

            inline StateMachine& operator=(StateMachine&& fsm) = default;
            StateMachine& operator=(const StateMachine&) = delete;

        private:
            std::vector<std::shared_ptr<State>> m_states;
    };
}

#include <NDK/StateMachine.inl>

#endif // NDK_STATEMACHINE_HPP