https://blog.wongcw.com/2018/12/19/%e9%a8%b0%e8%a8%8a%e7%94%b3%e8%ab%8bwegame-cloud%e5%95%86%e6%a8%99%e6%88%96%e5%bc%b7%e5%8c%96%e9%81%8a%e6%88%b2%e9%9b%b2%e6%a5%ad%e5%8b%99/