/* * Yaml.h * * Created on: 06.10.2012 * Author: Felix */ #ifndef DG_YAML_H_ #define DG_YAML_H_ #include #include #include #include #include "Log.h" /** * Interface to a YAML file. */ class Yaml { public: explicit Yaml(const std::string& filename); ~Yaml(); std::string getFilename() const; static void setFolder(const std::string& folder); template T get(const std::string& key, const T& defaultValue) const; private: static std::string mFolder; std::string mFilename; std::ifstream mFile; YAML::Node mNode; }; /** * Stream output operators to specialize Yaml::get for other types. * Error handling is done in Yaml::get. */ namespace { void operator>>(const YAML::Node& node, sf::Vector2i& vector) { node[0] >> vector.x; node[1] >> vector.y; } void operator>>(const YAML::Node& node, sf::Vector2f& vector) { node[0] >> vector.x; node[1] >> vector.y; } }; /** * Gets a value of a specified type by key. Returns default value on error. * * @param key The string by which to select the return value. * @tparam T The type of the return value. * @return The value of the specified key. */ template T Yaml::get(const std::string& key, const T& defaultValue) const { try { if (const YAML::Node* node = mNode.FindValue(key)) { T value; *node >> value; return value; } else { return defaultValue; } } catch(YAML::Exception&) { return defaultValue; } }; #endif /* DG_YAML_H_ */