Dungeons and Dragons Companion Bot

DnDCompanionBot is a telegram bot to play Dungeons and Dragons. In the future, this bot should be able to track campaigns, character sheets and help the DM with management tasks.

Commands

General commands	Action
/start	starts the DnDCompanionBot
/roll <expression>	rolls the dice using the dice notation
/charsheet <username>	returns the character sheet associated with username
/help	shows this help message

Campaign commands	Action
/start_campaign	starts a new campaign in the invoked group
/close_campaign	closes an active campaign
/set_turns <username1>, ..., <usernameN>	creates a list with the order of players for a given round
/turn	shows the current player in the turns list
/next_turn	moves to the next player in the turns list
/set_dm <username>	sets the username of the DM for the current campaign
/dm	shows the DM for the current campaign
/start_battle <width>, <height>	generates a new battle field
/set_positions <expression>	set characters positions at the battle field
/map	set characters positions at the battle field

Character commands	Action
/import_char <url>	imports the JSON data of a character from a URL
/link_char <char_id>, (username)	links character to target username or self username
/status <username|character>	shows the list of weapons of a character
/weapons <username|character>	shows the list of weapons of a character
/spells <username|character>	shows the list of damage spells of a character
/currency <username|character>	shows the currency pouch of a character
/damage <username|character>, <hp>	apply damage to a character
/heal <username|character>, <hp>	apply heal to a character
/attack_roll <weapon|spell>, <melee|range>, (distance), (adv|disadv)	performs an attack roll on a character
/initiative_roll <character>	performs an initiative roll for a character
/short_rest_roll <username|character>	performs an short rest roll for a character
/ability_check <ability>, (skill)	performs an ability check or a skill check if skill is specified
/say <character>, <message>	prints a message using in-game conversation format
/whisper <character>, <message>	prints a whisper message using in-game conversation format
/yell <character>, <message>	prints a yell message using in-game conversation format
/move <character for dm>	moves your character on the battle field
/set_currency <username|character>, <expression>	set the currency pouch of a character
/add_xp <username|character>, <xp>	adds points of experience to a character

What do I need?

• A AWS key configured locally, see here.
• NodeJS >= v8.9.0.
• A Telegram account.

Installing

# Install the Serverless Framework
$ npm install serverless -g

# Install the necessary plugins
$ npm install

# Get a bot from Telegram, sending this message to @BotFather
$ /newbot

# Put the token received into a file called serverless.env.yml, along with your Firebase configuration details. Like this:
# file: serverless.env.yml
TELEGRAM_TOKEN: <your_token>
FIREBASE_DB_URL: <your_firebase_realtime_database_url>
FIREBASE_API_SECRET: <your_firebase_realtime_database_secret>

# Deploy it!
$ serverless deploy

# With the URL returned in the output, configure the Webhook
$ curl -X POST https://<your_url>.amazonaws.com/dev/set_webhook

Installing locally

Define the following ENV variables for your OS:

TELEGRAM_TOKEN: <your_telegram_bot_token>
FIREBASE_DB_URL: <your_firebase_realtime_database_url>
FIREBASE_API_SECRET: <your_firebase_realtime_database_secret>

Then, make sure you use pip and all tools for Python 3 and install all dependencies:

$ pip3 install virtualenv
$ virtualenv venv
$ source venv/bin/activate

$ pip3 install -r requirements.txt

Running the bot locally

Follow the instructions from the section Installing locally, and then run the bot:

$ python local.py

Running tests locally

Follow the instructions from the section Installing locally, and then run the tests:

$ nose2 -v

How to use the bot

Import character from DndBeyond

1. Make sure your character is up-to-date in DnDBeyond.
2. Go to https://www.dndbeyond.com/profile/{username}/characters/{character_id}/json (replacing {username} with your username and character_id with the ID of your character)
3. Copy the output JSON and paste it on a public location (Github Gist, Drive, Dropbox, etc)
4. Go to the Telegram chat where you're playing and execute /link_char {json_url} (where `{json_url} is the URL to the public JSON you created in step 3).
5. Profit!

Other notes

AWS credentials saved on your machine at ~/.aws/credentials.

References

• https://github.com/python-telegram-bot/python-telegram-bot/blob/master/examples/README.md
• https://github.com/treetrnk/rollem-telegram-bot/blob/master/bot.py
• https://rpg.stackexchange.com/questions/83930/how-do-i-calculate-my-skill-modifier