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dungeon-gunner/source/util/Yaml.inl
2013-03-30 16:39:46 +01:00

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1 KiB
C++

/*
* Yaml.h
*
* Created on: 30.03.2013
* Author: Felix
*/
#include <SFML/System.hpp>
#include "Log.h"
/**
* 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 <typename T>
T Yaml::get(const std::string& key, const T& defaultValue) const {
try {
const YAML::Node* node = mNode.FindValue(key);
T value;
*node >> value;
return value;
}
catch (YAML::InvalidScalar&) {
LOG_W("Failed to get key " << key << " from " << mFolder << mFilename);
return defaultValue;
}
};