distance_grid.h

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#ifndef DISTANCE_GRID_H
#define DISTANCE_GRID_H
 
#include <MazeBuilder/grid_interface.h>
 
#include <future>
#include <memory>
#include <string>
#include <unordered_map>
 
namespace mazes
{
 
    class cell;
    class distances;
    class grid;
    class grid_operations;
 
    class distance_grid : public grid_interface
    {
    public:
        explicit distance_grid(unsigned int width = 1u, unsigned int length = 1u, unsigned int levels = 1u);
 
        distance_grid(const distance_grid &) = delete;
 
        distance_grid &operator=(const distance_grid &) = delete;
 
        distance_grid(distance_grid &&) noexcept = default;
 
        distance_grid &operator=(distance_grid &&) noexcept = default;
 
        // void configure(const std::vector<int>& indices) noexcept override;
 
        virtual std::string contents_of(std::shared_ptr<cell> const &c) const noexcept override;
 
        virtual std::uint32_t background_color_for(std::shared_ptr<cell> const &c) const noexcept override;
 
        // Delegate to embedded grid
        virtual grid_operations &operations() noexcept override;
 
        virtual const grid_operations &operations() const noexcept override;
 
        void calculate_distances(int start_index, int end_index) noexcept;
 
        std::shared_ptr<distances> get_distances() const noexcept;
 
    private:
        std::string to_base36(int value) const;
 
        std::shared_ptr<distances> m_distances;
 
        std::unique_ptr<grid_interface> m_grid;
    };
}
 
#endif // DISTANCE_GRID_H