grid.h

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#ifndef GRID_H
#define GRID_H
 
#include <functional>
#include <future>
#include <mutex>
#include <memory>
#include <optional>
#include <string>
#include <utility>
#include <vector>
#include <unordered_map>
 
#include <MazeBuilder/grid_interface.h>
 
namespace mazes {
 
class grid : public grid_interface {
protected:
 
    void build_fut(std::vector<int> const& indices) noexcept;
 
    void configure_cells(std::vector<std::shared_ptr<cell>>& cells) const noexcept;
 
    mutable std::promise<bool> m_config_promise;
    std::mutex m_cells_mutex;
    std::unordered_map<int, std::shared_ptr<cell>> m_cells;
 
public:
    friend class binary_tree;
    friend class dfs;
    friend class sidewinder;
 
    explicit grid(unsigned int rows = 1u, unsigned int columns = 1u, unsigned int height = 1u);
 
    explicit grid(std::tuple<unsigned int, unsigned int, unsigned int> dimensions);
 
    grid(const grid& other);
    
    grid& operator=(const grid& other);
    
    grid(grid&& other) noexcept;
    
    grid& operator=(grid&& other) noexcept;
    
    virtual ~grid();
 
    virtual std::future<bool> get_future() noexcept;
 
    // Overrides
 
    virtual std::tuple<unsigned int, unsigned int, unsigned int> get_dimensions() const noexcept override;
 
    virtual void to_vec(std::vector<std::shared_ptr<cell>>& cells) const noexcept override;
 
    virtual void to_vec2(std::vector<std::vector<std::shared_ptr<cell>>>& cells) const noexcept override;
 
    virtual std::optional<std::string> contents_of(const std::shared_ptr<cell>& c) const noexcept override;
 
    virtual std::optional<std::uint32_t> background_color_for(const std::shared_ptr<cell>& c) const noexcept override;
 
    std::shared_ptr<cell> search(int index) const noexcept;
 
    int count() const noexcept;
    
private:
    // Calculate the flat index from row and column
    std::function<int(unsigned int, unsigned int)> m_calc_index;
 
    std::tuple<unsigned int, unsigned int, unsigned int> m_dimensions;
}; // class
 
} // namespace mazes
 
#endif // GRID_H