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    復活一個 Browser Game - Unlight 開源事件 - 蒼時弦也 === {%hackmd LcL4-VI0SGitSiINTuy4rA %} > 請從這裡開始 > # 遊戲網址:[https://unlight.app/](https://unlight.app/) 噗浪: <https://www.plurk.com/unlightapp> 粉絲專頁:<https://www.facebook.com/OpenUnlight/> 【已知Bug】[Bug清單](https://justpaste.it/3e43u) 簡報:<https://speakerdeck.com/elct9620/2019-coscup-fu-huo-ge-browser-game-unlight-kai-yuan-shi-jian> 專案開源的時間大概8月初,到現在大概兩個禮拜。 1. 了解 micro service 裡面大概有五到六種不同的service彼此互相溝通。 2. 日本遊戲產業發達 遊戲業真是一個血汗的地方,所以就跑去做web。 Ruby + ActionScript 3 <- 被 賈伯斯 判死的東西 Flash <- 自從賈伯斯讓他死掉後,所有人都要他死掉 不意外,只要是來自日本,幾乎都會是ruby。 它是 Ruby 但不是 Ruby on Rails。工程師在沒有框架的情況下自己搞出來。 工程師沒有用 IDE 直接寫 ActionScript。 Adobe Flash IDE is unavailable。 你在外面找不到一個會動的 flash IDE。 官方一開始忘記把src檔案放出來。 例如 `mxmlc src/Unlight.mxml` 它寫了一個 script 把這個語言所有的對話用到的文字找出來,就知道只需要把這些unicode的font內嵌。 使用 Flex SDK 3.0 編譯前端。 整個專案的重建就是和遺失檔案奮鬥的過程。 compiler 太麻煩了,用 [Docker](https://github.com/open-unlight/legacy-unlight-docker) 打包起來 它每次 compile 都一定會把你的 source code 弄髒。 它有很多個語言,中文版只需要 compile 中文的東西。所以它又寫了一個 script 把檔案名稱改掉。然後 git 就會告訴你檔案髒掉了。 為了自訂伺服器需求,寫了三個 compose 檔案 我 server 跑起來,client 跑起來,然後很高興的跑起來。就登入失敗。因為 as3crypto 版本錯誤。 Unlight 使用 Secure Remote Password 協定加密。但是和現行標準(RFC)不太一致。 RFC是server把salt之類的各種東西給client,才開始算public key。 論文則沒有要求這件事。 Unlight 的實作是論文實作不是RFC實作。 「為什麼我的帳號被別人登入了?」因為我從來沒有檢查過密碼。 好朋友 Poka 贊助了一台伺服器 -> 有 24 GB Ram。 發現 24 GB Ram 給 500 人居然卡住。 單一 SQL Query 跑 0.2 sec <- 同樣的 query 跑太多次,對於遊戲來說會讓玩家覺得慢 它真的沒上 index !!! ```sql SELECT * FROM card_inventories WHERE chara_card_deck = .... ``` 加了 index 後速度快 100 倍 <- 有人說:「當初遊戲公司會倒掉,是不是因為這個原因」 現在可以給千人遊玩了。可能可以到三千。 有些 table 資料成長速度飛快,一週 10M ~ 20M rows How to Hosting? 加上 Amazon Cloudwatch 監控。 就有玩家問一個問題。以前遊戲有課金商店,那我可不可以課金? * 沒有接金流 * 另外開 api 去做課金商店,直接用 rack 寫。 SmartLook <- 錄製 user 的畫面協助 debug 以後會整理看看正常狀況要花多少錢。 我們現在是不正常狀況,像是有人家裡有閒置 server。 目前主要與原版相比的更動:TCP socket -> WebSocket 不過要 javascript 固定 packet size 語法很難懂 索性用 Golang 寫客戶端 websocket。 你可以學到如何用 Ruby 學習 C 的思考。 現在遊戲裡面是無差別課金格鬥。 畢竟是女性向收集角色遊戲,課金第一名是冥府的印章。 ###### tags: `COSCUP2019` `Ruby`

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