Majiang_bot

Net-play AI bot for 電脳麻将(Majiang), with majiang-mjai protocal translator

Introduction

Connect Mortal AI bots (following mjai protocol) to 電脳麻将(Majiang) net play server

You can practice Mahjong with Mortal (or other mjai AI bots) in your own private, offline, open-source server.

This project implements a Majiang net-play websocket client in python.

As the protocol in Majiang is different from mjai, this project implements a translator for the two protocols.

flowchart LR

A[Majiang Msg] -->|trans| B(mjai msg)
B --> C{AI Bot}
C --> D(mjai msg)
D --> |trans|E[Majiang Resp]

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Get Started

Install Requirements

pip install python-socketio[client] numpy requests

torch and libriichi is also required, install them in the way you like

For libriichi, please visit Mortal project and build it yourself

Then put libriichi.pyd in this folder

Double check if you have to use third-party built or modified libriichi binaries

About params

-n --number : Start this number of bots and join the room at the same time. Default: 3

-p --modelpath : Path to your local Mortal model. Default: model.pth

You can get a Mortal model for free from Akagi Project's discord server, or train it yourself

-r --room : The room ID to let the bots join. You should create a room in advance.

-s --server : You can start your own Majiang server or use the socket from official demo site. Default: https://kobalab.net/

-a --apppath : The path to Majiang app in the webroot. Default: majiang/

Auth address: server apppath server/auth/ eg. https://kobalab.net/ majiang/ server/auth/

Socket address: server apppath server/socket.io/ eg. https://kobalab.net/ majiang/ server/socket.io/

Make sure there is a / separating the paths

You can get the server and related setup instructions from kobalab/majiang-server

Example start cmd (run in server folder, put Majiang and majiang-server in the same parent folder)

node .\bin\server.js -p 8000 -d ../Majiang/dist/ -c /netplay.html

This will setup a server on http://127.0.0.1:8000/

The game page of this example will be http://127.0.0.1:8000/netplay.html

Start the bot

The following script will start 3 bots with random names to join room A1234 in the official demo server

python majiang_socket_bot.py -p /path/to/your/model.pth -r A1234

To join a custom server on http://127.0.0.1:8000/

python majiang_socket_bot.py -p /path/to/your/model.pth -s http://127.0.0.1:8000/ -a '' -r A1234

You can start the game after they join.

The bots will exit immediately in these conditions:

• The game ends
• The room not exists
• The room is full
• The bot got kicked out
• Other errors

If one bot encounters an error, other bots may not exit automatically. You can kick out bots in the game room to end them.

Credit

Equim-chan/Mortal

kobalab/Majiang

kobalab/majiang-server

shinkuan/Akagi

latorc/MahjongCopilot

smly/mjai.app

You can use kobalab/tenhou-url-log or Apricot-S/majiang-log to transform Majiang paipu into Tenhou format for further analysis in mjai-reviewer, etc.

License

GPLv3