qw-demobot

QuakeWorld demobot

Setup for automated QuakeWorld client streaming demos, accepting commands via Twitch chat.

• Visit twitch.tv/QuakeWorldDemos to see it in action.

How does it work? (TLDR version)

ezQuake reads from a pipe located at /tmp/ezquake_[username] on posix systems, where username is the username of the user who started the ezQuake process.

So basically all you have to do is to write commands to /tmp/ezquake_[username].

Stack

• Written in Go (Golang)
• ZeroMQ - Communication/messages (single proxy and multiple subscribers/publishers)

Overview

• Message Proxy: Central point for communication.
• Quake Manager: Interaction with ezQuake
  • Log monitor (thread): Read in-game events (demo started, demo stopped, etc)
  • Process monitor (thread): ezQuake events (started, stopped)
• Twitch Manager: Interaction with Twitch channel (e.g. set title).
• Twitch Bot: Interaction with Twitch chat.

Development

Directory structure

Uses the Standard Go Project Layout.

cmd/       # Main applications
internal/  # Private application and library code
scripts/   # Various build, install operations

Build

Build specific app

Example: build proxy

cd cmd/proxy
go build

Build all apps

./scripts/build.sh

Run

Single app

Example: start the proxy.

./cmd/proxy/proxy 

App controller scripts

Runs app forever (restarts on error/sigint with short timeout in between).

bash scripts/controllers/proxy.sh
bash scripts/controllers/quake_manager.sh
bash scripts/controllers/twitch_manager.sh
bash scripts/controllers/twitch_chatbot.sh
bash scripts/controllers/ezquake.sh

Test

go test ./... --cover

Production

Build all apps and run all app controller scripts.

./scripts/build.sh && ./scripts/start.sh