WorldEaterNotifier

Fabric mod that monitors world eaters and trenchers, sending Discord notifications with per‑event ping control when they stop or get obstructed.

---

What is it?

Fabric mod that monitors world eaters (TNT-based), trenchers, and bedrock breakers (block destruction-based), sending Discord webhook notifications with per‑event ping control and fully customizable messages when they stop, start, or get obstructed.

Documentation

For a complete guide on how to configure all the features please visit the documentation: WorldEaterNotifier Documentation

Features

• Real-time monitoring: Tracks world eaters (TNT count), trenchers, and bedrock breakers (block destruction).
• Discord integration: Sends instant notifications when a machine starts, stops, resumes, or is manually stopped.
• Customizable messages: Every notification message is configurable per machine type via JSON — use {type} and {name} placeholders.
• Role-based notifications: Mention specific Discord roles with per‑event toggles (global, start, manual stop, stuck, resumed, server shutdown). All configurable in‑game via commands.
• Discord bot mode: JDA-powered bot with interactive toggle button and slash commands (/config, /worldeater start|stop|list, /trencher start|stop|list, /bedrockbreaker start|stop|list) with autocomplete.
• Configurable thresholds: Stop timeout, minimum TNT count / blocks broken per machine type.
• Multi-world support: Monitor machines across different dimensions.
• Persistent configuration: Machine definitions, settings, and ping toggles survive server restarts. Messages are editable in JSON.
• Server shutdown detection: Automatically stops all active machines on shutdown and notifies Discord.

Requirements

Minecraft	Java	Fabric Loader	Fabric API
1.21.11	21+	0.18.1+	0.141.4+1.21.11
26.3	25+	0.19.5+	0.161.0+26.3

Install on the dedicated server only. Clients do not need this mod. JDA is bundled; no separate Discord library is needed.

Installation and updates

1. Download the jar matching your Minecraft version from GitHub Releases or Modrinth.
2. Put it and the matching Fabric API jar in the server's mods/ folder.
3. Start the server. The mod creates config/worldeaternotifier.json automatically.
4. Configure delivery and define your machines with the commands below.

Keep config/worldeaternotifier.json when updating. Machine definitions, settings, message templates, and the whitelist are retained. Machines load inactive after a restart; start them explicitly when ready.

To build both supported versions:

python3 tools/multiversion.py

The jars are written to build/multiversion/. The builder uses Java 21 for 1.21.11 and Java 25 for 26.3. In CI these are supplied by JAVA_HOME and JAVA_HOME_25_X64; locally they default to ~/.local/opt/jdk-21 and ~/.local/opt/jdk-25.

Configuration

The mod creates config/worldeaternotifier.json on first run. You can edit it manually or use the in‑game commands.

Example:

{
  "webhookUrl": "https://discord.com/api/webhooks/...",
  "pingRoleId": "123456789012345678",
  "notificationMode": "webhook",
  "botToken": "",
  "guildId": "",
  "channelId": "",
  "showSubscriptionButton": true,
  "memberDiscordRole": "",
  "worldEaterSettings": {
    "stopTimeoutSeconds": 60,
    "minTntCount": 3,
    "pingSettings": {
      "enabled": true,
      "onStart": true,
      "onStop": true,
      "onStuck": true,
      "onResumed": true,
      "onShutdown": true
    },
    "messages": {
      "start": "{type} **'{name}'** has started.",
      "stuck": "{type} **'{name}'** has stopped due to an obstruction.",
      "resumed": "{type} **'{name}'** has started again.",
      "manualStop": "{type} **'{name}'** was stopped manually.",
      "shutdown": "{type} **'{name}'** was shut down with the server and may have broken."
    }
  },
  "trencherSettings": {
    "stopTimeoutSeconds": 180,
    "minBlocksBroken": 20,
    "pingSettings": {
      "enabled": true,
      "onStart": true,
      "onStop": true,
      "onStuck": true,
      "onResumed": true,
      "onShutdown": true
    },
    "messages": {
      "start": "{type} **'{name}'** has started.",
      "stuck": "{type} **'{name}'** has stopped due to an obstruction.",
      "resumed": "{type} **'{name}'** has started again.",
      "manualStop": "{type} **'{name}'** was stopped manually.",
      "shutdown": "{type} **'{name}'** was shut down with the server and may have broken."
    }
  },
  "bedrockBreakerSettings": {
    "stopTimeoutSeconds": 60,
    "minBlocksBroken": 1,
    "pingSettings": {
      "enabled": true,
      "onStart": true,
      "onStop": true,
      "onStuck": true,
      "onResumed": true,
      "onShutdown": true
    },
    "messages": {
      "start": "{type} **'{name}'** has started.",
      "stuck": "{type} **'{name}'** has stopped due to an obstruction.",
      "resumed": "{type} **'{name}'** has started again.",
      "manualStop": "{type} **'{name}'** was stopped manually.",
      "shutdown": "{type} **'{name}'** was shut down with the server and may have broken."
    }
  },
  "worldEaters": [],
  "trenchers": [],
  "bedrockBreakers": [],
  "whitelist": []
}

• webhookUrl: Discord webhook URL.
• pingRoleId: ID of the Discord role to mention. Leave empty or "0" to disable all mentions.
• notificationMode: "webhook" (default) or "bot" — switches between webhook and JDA bot delivery.
• botToken: Discord bot token (required for bot mode).
• guildId / channelId: Discord guild and channel for bot notifications and slash commands.
• showSubscriptionButton: Whether to show the "Toggle Ping" button on start messages (bot mode).
• memberDiscordRole: Discord role ID that gates /worldeater start|stop|list (and trencher/bedrockbreaker equivalents) via slash commands; admins always have access.
• stopTimeoutSeconds: How many seconds without activity before the machine is considered stuck.
• minTntCount / minBlocksBroken: Minimum activity per check to keep the machine alive.
• pingSettings: Per-machine-type ping toggles (enabled, onStart, onStop, onStuck, onResumed, onShutdown) — these now persist across restarts.
• messages: Customizable Discord notification messages per machine type. Use {type} for the machine type name and {name} for the machine instance name.

Usage

1. Install the mod and start your server.
2. Configure delivery:
   • Webhook mode (default): /worldeater settings setWebhookUrl <url>
   • Bot mode: /worldeater settings setBotToken <token>, set setGuildId and setChannelId, then /worldeater settings setNotificationMode bot
3. Create machines:
   • /worldeater create <name> <x1> <y1> <z1> <x2> <y2> <z2>
   • /trencher create <name> <x1> <y1> <z1> <x2> <y2> <z2>
   • /bedrockbreaker create <name> <x1> <y1> <z1> <x2> <y2> <z2> (Coordinates auto‑suggest the block you stand on; Tab completes names.)
4. Start monitoring with /worldeater start <name>, /trencher start <name>, or /bedrockbreaker start <name>.
5. The mod automatically sends Discord messages when a machine stops unexpectedly (stuck), resumes, or is manually stopped.
6. In bot mode, Discord slash commands mirror the Minecraft commands:
   • /worldeater start <name>, /worldeater stop <name>, /worldeater list (autocomplete suggests existing names)
   • Same for /trencher and /bedrockbreaker
   • /config pings — interactive flow to toggle per-machine-type ping settings
7. Adjust settings on the fly:
   • /worldeater settings show, /trencher settings show, /bedrockbreaker settings show
   • /worldeater settings setStopTimeout <seconds>
   • /trencher settings setMinBlocksBroken <count>
   • /worldeater settings discordPings enable true and individual events like onStuck false
   • /worldeater settings showSubscriptionButton <true|false> (bot mode)
   • /worldeater settings setMemberDiscordRole <roleId> (bot mode)
   • Edit notification messages directly in the JSON file.
   • Use Tab to explore all subcommands.
8. Manage machines: list, stop, delete for all three types.
9. When the server shuts down, all active machines are stopped and a shutdown notification is sent.

Dependencies

• Fabric Loader
• Fabric API
• Standard Minecraft & Java libraries

Building from Source

Requires:

• Gradle 8.10.2 or higher (automatically downloaded via gradlew)
• Java 21 or higher

Build command:

./gradlew clean build

Generated artifact: build/libs/worldeaternotifier-*.jar

License

MIT © froyln

Credits

Original mod by Kisde. This repository is the W4VE fork, maintained under the MIT license.