/*
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* Copyright (C) 2020 Christopher J. Howard
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*
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* This file is part of Antkeeper source code.
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*
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* Antkeeper source code is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* Antkeeper source code is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with Antkeeper source code. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "fsm.hpp"
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namespace fsm {
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machine::machine():
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previous_state{nullptr, nullptr},
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current_state{nullptr, nullptr}
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{}
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void machine::change_state(const state& next_state)
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{
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if (current_state.exit)
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{
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current_state.exit();
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}
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previous_state = current_state;
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current_state = next_state;
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if (current_state.enter)
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{
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current_state.enter();
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}
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}
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} // namespace fsm
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