https://blog.wongcw.com/2021/01/14/bggenerator-%e5%9c%a8%e7%b7%9a%e5%89%b5%e5%bb%ba%e5%90%84%e7%a8%ae%e9%ab%98%e8%be%a8%e7%8e%87%e7%9a%84%e8%83%8c%e6%99%af%e5%9c%96%e7%89%87/