brep-loop.hpp

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/*
 * Copyright (C) 2023  Christopher J. Howard
 *
 * This file is part of Antkeeper source code.
 *
 * Antkeeper source code is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * Antkeeper source code is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with Antkeeper source code.  If not, see <http://www.gnu.org/licenses/>.
 */
 
#ifndef ANTKEEPER_GEOM_BREP_LOOP_HPP
#define ANTKEEPER_GEOM_BREP_LOOP_HPP
 
#include <engine/geom/brep/brep-element-container.hpp>
#include <cstddef>
 
namespace geom {
 
class brep_vertex;
class brep_edge;
class brep_face;
template <class T>
class brep_element_container;
 
class brep_loop
{
public:
    friend class brep_mesh;
    friend class brep_edge_loop_list;
    friend class brep_face_loop_list;
    friend class brep_element_container<brep_loop>;
    friend class brep_loop_container;
    friend class brep_face_container;
    
    [[nodiscard]] inline constexpr std::size_t index() const noexcept
    {
        return m_index;
    }
    
    [[nodiscard]] inline constexpr brep_vertex* vertex() const noexcept
    {
        return m_vertex;
    }
    
    [[nodiscard]] inline constexpr brep_edge* edge() const noexcept
    {
        return m_edge;
    }
    
    [[nodiscard]] inline constexpr brep_face* face() const noexcept
    {
        return m_face;
    }
    
    [[nodiscard]] inline constexpr brep_loop* next() const noexcept
    {
        return m_face_next;
    }
    
    [[nodiscard]] inline constexpr brep_loop* previous() const noexcept
    {
        return m_face_previous;
    }
    
private:
    std::size_t m_index;
    brep_vertex* m_vertex;
    brep_edge* m_edge;
    brep_face* m_face;
    brep_loop* m_edge_next;
    brep_loop* m_edge_previous;
    brep_loop* m_face_next;
    brep_loop* m_face_previous;
};
 
class brep_loop_container: public brep_element_container<brep_loop>
{
private:
    friend class brep_mesh;
    friend class brep_face_container;
    
    inline explicit brep_loop_container(brep_mesh* mesh) noexcept:
        brep_element_container<brep_loop>(mesh)
    {}
    
    brep_loop* emplace_back() override;
};
 
} // namespace geom
 
#endif // ANTKEEPER_GEOM_BREP_LOOP_HPP