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Config.cpp
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Config.cpp
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#include "Config.h"
#include "GameException.hpp"
#include <fstream>
Config::Config(token)
: config_file_(std::string("./game.json")) {
std::fstream file(config_file_, std::fstream::in);
file >> config_json_;
file.close();
}
Config::~Config() {}
json Config::GetParam(std::initializer_list<std::string> path) {
json object = config_json_;
std::string name = "";
for (auto i=path.begin(); i != path.end(); ++i) {
name += "[" + *i + "]";
object = object[*i];
if (object == NULL) {
std::string msg = "Unable to find " + name + " in " + config_file_ + "!";
throw GameException(GameException::eParameterNotFound, msg);
}
}
return object;
}
template <typename T>
json Config::GetParam(const std::initializer_list<std::string> & path, T value) {
json param_value;
try {
param_value = GetParam(path);
}
catch (GameException & e) {
if (e.code() == GameException::eParameterNotFound) {
param_value = value;
} else {
throw;
}
}
return param_value;
}
template json Config::GetParam<int>(const std::initializer_list<std::string> & path, int value);
template json Config::GetParam<double>(const std::initializer_list<std::string> & path, double value);
template json Config::GetParam<bool>(const std::initializer_list<std::string> & path, bool value);