131 lines
4.2 KiB
Markdown
131 lines
4.2 KiB
Markdown
# matrix-dicebot
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This is a fork of the
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[axfive-matrix-dicebot](https://gitlab.com/Taywee/axfive-matrix-dicebot)
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with basic support for the Chronicles of Darkness 2E Storytelling
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System, with future plans to extend the codebase further to support
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variables and perhaps character sheet management.
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## Features
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`matrix-dicebot` is a basic dice rolling bot. It currently has the
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following features:
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* Rolling arbitrary dice expressions (e.g. 1d4, 1d20+5, 1d8+1d6, etc).
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* Rolling dice pools for the Chronicles of Darkness 2E Storytelling
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System.
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* Works in encrypted or unencrypted Matrix rooms.
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## Building and Installation
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The easiest way to install matrix-dicebot is to clone this repository
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and run `cargo install`. Precompiled executables are not yet
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available.
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Building the project requires:
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* Rust 1.45.0 or higher.
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* OpenSSL/LibreSSL development headers installed.
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* glibc (probably)
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### Why doesn't it build on musl libc?
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As far as I can tell, the project doesn't build on musl libc. It
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certainly doesn't build a static binary out of the box using the
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rust-musl-builder. This appears to be due to a transitive dependency
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of the Rust Matrix SDK.
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Any PRs to get the project or Matrix SDK to properly be built into a
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static binary using musl would be very useful.
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## Usage
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To use it, you can invite the bot to any room you want, and it will
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automatically jump in. Then you can simply give a dice expressions for
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either the Storytelling System or more traditional RPG dice rolls.
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The bot supports a `!help` command for basic help information about
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its capabilities.
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The commands `!roll` and `!r` can handle arbitrary dice roll
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expressions.
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```
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!roll 4d6
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!r 4d7 + 3
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!r 3d12 - 5d2 + 3 - 7d3 + 20d20
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```
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The commands `!pool` (or `!rp`) and `!chance` are for the Storytelling
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System, and they use a specific syntax to support the dice system. The
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simplest version of the command is `!pool <num>` to roll a pool of the
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given size using the most common type of roll.
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The type of roll can be controlled by adding `n`, `e`, or `r` after
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the number, for 9-again, 8-again, and rote quality rolls. The number
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of successes required for an exceptional success can be controlled by
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`s<num>`, e.g. `s3` to only need 3 successes for an exceptional
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success.
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Examples:
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```
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!pool 8 //regular pool of 8 dice
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!pool 8n //roll 8 dice, 9-again
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!pool 8ns3 //roll 8 dice, 9-again with only 3 successes for exceptional
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!pool 5rs2 //5 dice, rote quality, 2 successes for exceptional
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```
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## Running the Bot
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You can run the bot by creating a Matrix account for it, building the
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application, and creating a config file that looks like this:
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```ini
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[matrix]
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home_server = https://'matrix.org'
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username = 'thisismyusername'
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password = 'thisismypassword'
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```
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Make sure to replace the information with your own. Then you can run
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the "dicebot" binary. It takes the path to the configuration file as
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its single argument.
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You can also run it on the command line with the `dicebot-cmd`
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command, which expects you to feed it one of the command expressions
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as shown above, and will give you the plaintext response.
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## Docker Image
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The dice bot can run in a minimal Docker image based on [Void
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Linux](https://voidlinux.org/). To create the Docker image, run
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`docker build -t chronicle-dicebot .` in the root of the repository.
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A typical docker run command should look something like this:
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```
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VERSION="0.3.0"
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docker run --rm -d --name dicebot \
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-v /path/to/dicebot-config.toml:/config/dicebot-config.toml:ro \
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-v /path/to/cache/:/cache \
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chronicle-dicebot:$VERSION
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```
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The Docker image requires two volume mounts: the location of the
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config file, which should be mounted at `/config/dicebot-config.toml`,
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and a cache directory to store client state after initial sync. That
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should be mounted at `/cache/`in the container.
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Properly automated docker builds are forthcoming.
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## Future plans
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The most basic plans are:
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* To add support for simple per-user variable management, e.g. setting
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a name to a value (`gnosis = 3`) and then using those in dice rolls.
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* Perhaps some sort of character sheet integration. But for that, we
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would need a sheet service.
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* Automation of Docker builds and precompiled binaries.
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* Use environment variables instead of config file in Docker image.
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