asset_io.hpp

// SPDX-License-Identifier: MIT
#ifndef LIBSBX_SCENES_ASSET_IO_HPP_
#define LIBSBX_SCENES_ASSET_IO_HPP_
 
#include <functional>
#include <string>
#include <unordered_map>
 
#include <yaml-cpp/yaml.h>
 
#include <libsbx/utility/hashed_string.hpp>
 
#include <libsbx/scenes/asset_registry.hpp>
 
namespace sbx::scenes {
 
class asset_io_registry {
 
public:
 
  template<std::invocable<asset_registry&, const utility::hashed_string&, const YAML::Node&> Load>
  auto register_loader(const std::string& category, Load&& load) -> void {
    _loaders[category] = std::forward<Load>(load);
  }
 
  auto has(const std::string& category) const -> bool {
    return _loaders.contains(category);
  }
 
  auto load(const std::string& category, asset_registry& assets, const utility::hashed_string& name, const YAML::Node& node) -> void {
    std::invoke(_loaders.at(category), assets, name, node);
  }
 
private:
 
  std::unordered_map<std::string, std::function<void(asset_registry&, const utility::hashed_string&, const YAML::Node&)>> _loaders;
 
}; // class asset_io_registry
 
} // namespace sbx::scenes
 
#endif // LIBSBX_SCENES_ASSET_IO_HPP_