launcher.py 文件源码

def __init__(self, mc_dir=default_minecraft_directory, java_dir=default_java_directory):
        self.minecraft_directory = mc_dir
        self.java_directory = java_dir
        if not mc_dir or not os.path.exists(mc_dir):
            logging.critical('Invalid /.minecraft/ directory.')
            raise FileNotFoundError('Invalid /.minecraft/ directory {0}'.format(mc_dir))
        if not java_dir or not os.path.exists(java_dir):
            logging.critical('Invalid javaw.exe directory.')
            raise FileNotFoundError('Invalid javaw.exe directory {0}'.format(java_dir))
        self.libraries_directory = os.path.join(self.minecraft_directory, 'libraries')
        self.assets_directory = os.path.join(self.minecraft_directory, 'assets')
        self.version_directory = None
        self.natives_directory = None
        self.libraries = None
        os.chdir(self.minecraft_directory)
        self.versions = MCVersionsList(mc_dir)