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The Artificer - A Dice Rolling Discord Bot

Version 1.0.0 - 2020/1/8

The Artificer is a Discord bot that specializes in rolling dice. The bot utilizes the compact Roll20 formatting for ease of use and will correctly perform any needed math on the roll (limited to basic algebra).

This bot was developed to replace the Sidekick discord bot after it went offline many times for extended periods. This was also developed to fix some annoyances that were found with Sidekick, specifically its vague error messages (such as "Tarantallegra!", what is that supposed to mean) and its inability to handle implicit mulitplication (such as 4(12 + 20)).

Using The Artificer

I am hosting this bot for public use and you may find its invite link below. If you would like to host this bot yourself, details of how to do so are found at the end of this README, but I do not recommend this unless you are experienced with running Discord bots.

After inviting the bot, if you would like it to remove the message requesting the popcat emoji, you will need to give the The Artificer role the Manage Messages permission. All other permissions needed are handled by the invite link.

Bot Invite Link

Available Commands

The Artificer comes with a few supplemental commands to the main rolling command.

[[help or [[h or [[?
- Provides a message similar to this available commands block.
[[ping
- Tests the latency between you, Discord, and the bot.
[[version or [[v
- Prints out the current version of the bot.
[[popcat or [[pop or [[p
- Sends the animated popcat emote for those who do not have Discord Nitro.
- If bot is given the permission Manage Messages, the bot will remove the message requesting the emote.
[[stats or [[s
- Prints out how many users, channels, and servers the bot is currently serving.
[[report or [[r [command that failed]
- People aren't perfect, but this bot is trying to be.
- If you encounter a command that errors out or returns something unexpected, please use this command to alert the developers of the problem.
- Example:
  - [[report [[2+2]] returned 5 when I expected it to return 4 will send the entire message after [[report to the devs via Discord.

[[xdydzracsq!]]

This is the command the bot was built specifically for.
It looks a little complicated at first, but if you are familiar with the Roll20 formatting, this will no different.
Any math (limited to exponentials, multiplication, division, modulus, addition, and subtraction) will be correctly handled in PEMDAS order, so use parenthesis as needed.
PI and e are available for use.

Paramaters for rolling:

Paramater	Required?	Repeatable?	Description
x	Optional	No	number of dice to roll, if omitted, 1 is used
dy	Required	No	size of dice to roll, d20 = 20 sided die
dz or dlz	Optional	No	drops the lowest z dice, cannot be used any other drop or keep options
kz or khz	Optional	No	keeps the highest z dice, cannot be used any other drop or keep options
dhz	Optional	No	drops the highest z dice, cannot be used any other drop or keep options
klz	Optional	No	keeps the lowest z dice, cannot be used any other drop or keep options
ra	Optional	Yes	rerolls any rolls that match a, r3 will reroll any dice that land on 3, throwing out old rolls
csq or cs=q	Optional	Yes	changes crit score to q
cs<q	Optional	Yes	changes crit score to be less than or equal to q
cs>q	Optional	Yes	changes crit score to be greater than or equal to q
cfq or cs=q	Optional	Yes	changes crit fail to q
cf<q	Optional	Yes	changes crit fail to be less than or equal to q
cf>q	Optional	Yes	changes crit fail to be greater than or equal to q
!	Optional	No	exploding, rolls another dy for every crit roll

If the paramater is Required, it must be provided at all times.
If the paramater is Repeatable, it may occur multiple times in the roll configuration.
Examples:
- [[4d20]] will roll 4 d20 dice and add them together.
- [[4d20r1!]] will roll 4 d20 dice, rerolling any dice that land on 1, and repeatedly rolling a new d20 for any critical success rolled.
- [[d20/40]] will roll a d20 die and divide it by 40.
- [[((d20+20) - 10) / 5]] will roll a d20, add 20 to that roll, subtract off 10, and finally divide by 5.

Problems? Feature requests?

If you run into any errors or problems with the bot, or think you have a good idea to add to the bot, please submit a new GitHub issue detailing it. If you don't have a GitHub account, a report command (detailed above) is provided for use in Discord.

Running The Artificer

The Artificer was built on Deno v1.6.3 using Discodeno v10.0.0. If you choose to run this yourself, you will need to rename config.example.ts to config.ts and edit some values. You will need to create a new Discord Application and copy the newly generated token into the "token" key. If you want to utilize some of the bots dev features, you will need to fill in the keys "logChannel" and "reportChannel" with text channel IDs and "devServer" with a guild ID.

Starting the bot is simply done with deno run --allow-net .\mod.ts.

Built in memory of my Grandmother, Babka

With much love, Ean

December 21, 2020

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