ProceduralOptions.hpp

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#pragma once
 
#include <wmtk/components/utils/json_utils.hpp>
 
#include <nlohmann/json.hpp>
#include "DiskOptions.hpp"
#include "GridOptions.hpp"
#include "TriangleFanOptions.hpp"
 
namespace wmtk::components::procedural {
 
 
struct ProceduralOptions
{
    std::string name;
    std::variant<GridOptions, TriangleFanOptions, DiskOptions> settings;
 
    friend void to_json(nlohmann::json& nlohmann_json_j, const ProceduralOptions& nlohmann_json_t)
    {
        std::visit(
            [&](const auto& s) { nlohmann_json_j["settings"] = s; },
            nlohmann_json_t.settings);
    }
    friend void from_json(const nlohmann::json& nlohmann_json_j, ProceduralOptions& nlohmann_json_t)
    {
        if (nlohmann_json_j.contains("triangle_fan")) {
            const auto& settings_js = nlohmann_json_j["triangle_fan"];
            nlohmann_json_t.settings = settings_js.get<TriangleFanOptions>();
        } else if (nlohmann_json_j.contains("grid")) {
            const auto& settings_js = nlohmann_json_j["grid"];
            nlohmann_json_t.settings = settings_js.get<GridOptions>();
        } else if (nlohmann_json_j.contains("disk")) {
            const auto& settings_js = nlohmann_json_j["disk"];
            nlohmann_json_t.settings = settings_js.get<DiskOptions>();
 
        } else {
            throw std::runtime_error(fmt::format("Unknown procedural mesh mesh_type"));
        }
    }
};
 
 
} // namespace wmtk::components::procedural