cell.h

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#ifndef CELL_H
#define CELL_H
 
#include <memory>
#include <vector>
#include <unordered_map>
#include <cstdint>
 
namespace mazes {
 
class cell {
 
public:
    explicit cell(std::int32_t index = 0);
 
    void link(std::shared_ptr<cell> c1, std::shared_ptr<cell> c2, bool bidi=true);
 
    void unlink(std::shared_ptr<cell> c1, std::shared_ptr<cell> c2, bool bidi=true);
 
    const std::unordered_map<std::shared_ptr<cell>, bool>& get_links();
 
    bool is_linked(const std::shared_ptr<cell>& c);
 
    bool has_northern_neighbor() const noexcept;
 
    bool has_southern_neighbor() const noexcept;
 
    bool has_eastern_neighbor() const noexcept;
 
    bool has_western_neighbor() const noexcept;
 
    std::vector<std::shared_ptr<cell>> get_neighbors() const noexcept;
 
    int32_t get_index() const noexcept;
 
    void set_index(std::int32_t next_index) noexcept;
 
    std::shared_ptr<cell> get_north() const;
 
    std::shared_ptr<cell> get_south() const;
 
    std::shared_ptr<cell> get_east() const;
 
    std::shared_ptr<cell> get_west() const;
 
    void set_north(std::shared_ptr<cell> const& other);
 
    void set_south(std::shared_ptr<cell> const& other);
 
    void set_east(std::shared_ptr<cell> const& other);
 
    void set_west(std::shared_ptr<cell> const& other);
private:
    bool has_key(const std::shared_ptr<cell>& c);
 
    std::unordered_map<std::shared_ptr<cell>, bool> m_links;
 
    std::int32_t m_index;
 
    std::shared_ptr<cell> m_north;
    std::shared_ptr<cell> m_south;
    std::shared_ptr<cell> m_east;
    std::shared_ptr<cell> m_west;
}; // class
 
} // namespace
 
#endif // CELL_H