node-mud-websocket

node-mud-websocket is a websocket relay for MUDs.

Running

There are two modes, development and production.

• For local development, use yarn start.
• For production, use docker run -ePORT=4000 -eMUD_PORT=5000 -eMUD_ADDRESS=primaldarkness.com -p4000:4000 justinm/node-mud-socket.

Features

Color Support

ANSI color codes are replaced with tags and their corresponding color. Since the engine does not render actual color HEX codes, but classes, this allows the output rendered to be highly themed.

GMCP Support

MUDs that support GMCP will emit the gmcp event, allowing your UI to react accordingly. This works great for adding Vital bars and other HUD like features.

Communicating with the Server

The websocket server communicates via JSON event packages. The only requirement is each JSON payload contain a type key indicating the type of event that's being sent or received.

Event - connection

  { 'type': 'connection', 'status': 'success' }

The connection event notifies the frontend regarding the connection status to the MUD. Valid status keys are: success and closed.

Event - text

  { 'type': 'text', 'text': 'MUD output' }

The text event is sent whenever the MUD sends data. The event will contain however much data has been received so far, but may not be the full payload. Make sure to treat this like a stream of data.

Event - echo

  { 'type': 'echo', 'disabled': true }

Notifies the client when echos should be disabled. This is common for password prompting, where the password should not be added to the display.

Event - gmcp

  { 'type': 'gmcp', 'key': 'Char.Vitals', 'value': '{"HP": 100}' }

GMCP events are triggered whenever the MUD sends a GMCP event.