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:

Villager Inspector: A lightweight HUD to inspect villagers in real time.
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

Start the game with the mod installed (client and server if you’re on a modded dedicated/LAN server).
Aim your crosshair at a villager to see the HUD.
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)

Install Fabric Loader compatible with 1.21.10.
Drop this mod’s JAR into your instance’s mods/ folder.
Also install the compatible Fabric API JAR into mods/.
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.