../game.cpp: In member function `bool Game::playerSayCommand(Player*, SpeakClasses, const std::string&)':
../game.cpp:3058: error: invalid initialization of reference of type 'std::string&' from expression of type 'const std::basic_string<char, std::char_traits<char>, std::allocator<char> >'
../tools.h:52: error: in passing argument 1 of `void toLowerCaseString(std::string&)'