dcss-lobby

dcss-lobby connects to a DCSS WebTiles server and gives you all game events - the same which are shown in the lobby.

Features

• automatic conversion of messages to game events
• configurable reconnect after timeout
• filter events
• multiple sinks
• noise protection

Usage

const Lobby = require('dcss-lobby');
 
const lobby = new Lobby.Lobby('CUE', 'https://underhound.eu:8080/', {
    reconnect:      true,
    bulkProcessing: 3,
});
 
lobby.setSink(new Lobby.Sink.Console());
lobby.connect();

You can find a complete example in example/.

Example output

[CUE] OdinFK ist nun ein "Firebug".
[CUE] Freyura ist von D:4 nach D:5 gegangen.
[CUE] P0WERM0DE ist nun ein "Chopper".
[CUE] PentaManta ist von D:2 nach D:3 gegangen.
[CUE] iamserjio hat einen Meilenstein geschafft: "killed Jessica.".
[CUE] P0WERM0DE hat einen Meilenstein geschafft: "became a worshipper of Makhleb.".
[CUE] Freyura ist nun Level 8.
[CUE] OdinFK ist von D:4 nach D:5 gegangen.
[CUE] P0WERM0DE ist nun Level 7 und ist von D:4 nach D:5 gegangen.
[CUE] Ge0ff ist von Crypt:3 nach Crypt:2 gegangen.
[CUE] Ge0ff ist von Crypt:2 nach Crypt:3 gegangen.
[CUE] iamserjio ist nun Level 6.
[CUE] Artagas ist von Elf:2 nach Desolation gegangen.
[CUE] iamserjio wird nicht mehr beobachtet.
[CUE] iamserjio  im Dungeon dcss-git als OpCK mit XL 6 pausiert auf der Suche nach dem Orb.
[CUE] FreshCat ist von Dis:4 nach Dis:5 gegangen.
[CUE] iamserjio ist im Dungeon dcss-git als OpCK mit XL 1 auf der Suche nach dem Orb.
[CUE] KamiKatze ist im Dungeon dcss-0.23 als CeHu mit XL 2 auf der Suche nach dem Orb.
[CUE] P0WERM0DE ist nun Level 8.
[CUE] P0WERM0DE ist von D:5 nach D:6 gegangen und hat einen Meilenstein geschafft: "killed Eustachio.".
[CUE] iamserjio ist nun ein "Skirmisher".
[CUE] dstrtn ist von D:3 nach D:2 gegangen.

Installation

npm install dcss-lobby

Architecture

Client wraps the WebSocket connection. The WebSocket connection transmits messages. The MessageParser parses the messages and creates Message-Objects. These objects are stored in a MessageStore. The MessageBulk tries to summarize messages to reduce spam. After the MessageBulk got max messages, the messages are given to Translator, which converts the messages to game Event objects and puts them on the Emitter. The Emitter filters and formats events and puts them in a sink e. g. console.

Lobby is the main interaction object. It handles all the above mentioned things. A lobby needs the shortcut for a DCSS WebTiles server and the servers WebSocket URL and can have an optionally configuration object:

const lobby = new Lobby(/* server shortcut */ 'CUE', /* server url */ 'https://underhound.eu:8080/', {
    reconnect: boolean // do reconnect after disconnect
    bulkProcessing: number // number of max messages in MessageBulk
});

You can filter the events you are interested in:

 
class EverySecond {
 
    constructor() {
        this.toggle = false;
    }
 
    filter(/* Event */ event) {
        this.toggle = !this.toggle;
        return this.toggle;
    }
 
}
 
 
class OnlyUpdateEventsFromSyranez {
 
    filter(/* Update */ event) {
        return event.username === 'syranez';
    }
 
}
 
// Filter is triggered on every event
lobby.setFilter(new EverySecond());
 
// Filter is triggered only on update events
lobby.setFilterForType(/* event type */ 'update', new OnlyUpdateEventsFromSyranez());

You can format the events you are interested in:

 
class UpdateFormatter {
 
    format(/* Update */ event) {
        return `Hey, new update from ${event.username}! \o/`;
    }
 
}
 
// format the Update event
lobby.setFormatterForType(/* event type */ 'update', new UpdateFormatter());

You can then output the event. If the event was previously formatted, the Sink will get a string not an Event.

 
// for all (formatted) events
lobby.setSink(new Lobby.Sink.Console());
 
// for (formatted) event types
lobby.setSinkForType('update', new Lobby.Sink.Console());

Game Event Types

start

Emitted if someone starts or continues a game.

key	meaning
username	Name of player
xl	Experience Level
title	Current title
spectator_count	Count of spectators
idle_time	Idle time
char	Character
place	Current location
game_id	Game version
id	Process id of current game

Source: src/event/start.js

update

Emitted if something interesting happend in someones game.

key	meaning
username	Name of player
game_id	Game version
id	Process id of current game
diff	Array with all changes
switchedBranch()	Returns true if player switched the dungeon branch, otherwise false

diff is an array with all changes where change is an object with this

key	meaning
key	Name of changed value (can be: xl, title, spectator_count, idle_time, char, place)
oldValue	Value before
newValue	current value

Source: src/event/update.js

stop

Emitted if the game is stopped.

key	meaning
username	Name of player
xl	Experience Level
title	Current title
spectator_count	Count of spectators
idle_time	Idle time
char	Character
place	Current location
game_id	Game version
id	Process id of current game

Source: src/event/stop.js

License

MIT

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