NonNonSenseMC — A Mod to Clean Minecraft Nonsense (Fabric 1.21.10)

NonNonSenseMC is a personal mod designed to clean up what I consider "nonsense" in Minecraft. It introduces two key features:

1. Villager Inspector: A lightweight HUD to inspect villagers in real time.
2. Unlimited Trades: Removes trade limits for villagers, allowing infinite trading.

Baseline versions: Minecraft 1.21.10 • Fabric Loader 0.17.3 • Fabric API 0.136.0+1.21.10

Features

Villager Inspector

• Contextual villager HUD when aiming at a villager.
• Displays:
  • Profession (color-coded) and level.
  • Panic state based on current AI task.
  • Ready to breed status.
  • “Golem detected recently” (value and TTL as exposed by internal memory).
  • “Last slept” memory.
  • “Home” BlockPos.
• Efficient client–server communication: the client requests info only when needed and uses throttling to avoid spamming the server.

Unlimited Trades

• Removes the maximum usage limit for villager trades.
• Allows infinite trading with villagers without resetting their trades.
• Implemented via a mixin that modifies the maxUses and uses fields of TradeOffer.

How to use

1. Start the game with the mod installed (client and server if you’re on a modded dedicated/LAN server).
2. Aim your crosshair at a villager to see the HUD.
3. Trade with villagers without worrying about trade limits.

No keybinds required—the features work automatically.

How it works (high level)

Villager Inspector

• Client: when you aim at a villager, it sends a C2S request with the entity id, limited by a 150 ms throttle for the same target.
• Server: upon receiving the request, it reads the villager’s brain (memories and running tasks) and responds with an S2C payload, which the client renders in the HUD.

Unlimited Trades

• A mixin hooks into the fillRecipes method of VillagerEntity.
• It modifies the maxUses and uses fields of TradeOffer via reflection, setting them to Integer.MAX_VALUE.

Advanced networking (Villager Inspector):

• C2S: nonsensenmc:villager_info_request — contents: VAR_INT entityId.
• S2C: nonsensenmc:villager_info — contents: BOOLEAN scared, BOOLEAN readyToBreed, STRING home, STRING lastSlept, STRING golemDetected.

Architecture (Clean Architecture)

• Domain
  • VillagerInfo (immutable record/DTO): raw villager data without UI formatting.
• Application
  • VillagerInfoService: use case that builds VillagerInfo from a VillagerEntity (reads tasks/memories). No networking/UI dependencies.
• Infrastructure (server)
  • ServerNetworking: registers codecs and the C2S handler; uses the service and replies with the S2C packet.
• Client
  • NonNonSenseMCClient: registers codecs and the S2C receiver.
  • ClientVillagerHudState: HUD state and request throttling.
  • HudRenderingEntrypoint: renders the overlay, reading from the state and the pointed VillagerEntity.
• Mixins
  • VillagerEntityMixin: hooks into villager fillRecipes to enable unlimited trades.

Requirements

• Minecraft: 1.21.10
• Fabric Loader: 0.17.3
• Fabric API: 0.136.0+1.21.10

Installation (player)

1. Install Fabric Loader compatible with 1.21.10.
2. Drop this mod’s JAR into your instance’s mods/ folder.
3. Also install the compatible Fabric API JAR into mods/.
4. Launch the game.

For multiplayer/servers: also install the mod and Fabric API server-side if you want everyone to see server-backed HUD data and enjoy unlimited trades.

Artifacts are generated under build/libs/.

Configuration

• Request throttling: currently set to 150 ms per same-target villager (ClientVillagerHudState.beginRequestIfAllowed). You can tune it in code.
• Logging: the service emits debug-level log lines with raw memory contents.

Notes and limitations

• Some AI/Brain APIs used come from deprecated methods in this mapping version; they’re preserved for compatibility with current builds.
• The mixin that alters trade offers is experimental and may affect villager trading behavior or balance.

Troubleshooting

• HUD doesn’t show up:
  • Make sure you’re actually aiming at a villager.
  • Confirm Fabric API is installed and client/server mod versions match.
• Payload/type mismatch:
  • Ensure both client and server register codecs (this mod does in its entrypoints) and that mod versions match on both sides.
• Performance:
  • Throttling limits requests; if you customize the interval, avoid extremely low values to prevent network spam.

Contributing

PRs are welcome for: migrating to non-deprecated Brain APIs, configuration options, etc

License

See the included LICENSE.txt file.