MessMod

A Minecraft mod that offers numerous features - from world manipulation and information display to bug fixes. It gives you more control over the game, allows you to see additional information, and simplifies various tasks.

Main Features

• Entity Information Display: Instead of using the /data command to get entity velocity, simply press F3 + E, target an entity, and see the required data in the corner of the screen.
• Correct Entity Boundaries: Fixes the issue with incorrect display of flying TNT and other objects' boundaries.
• Simplified Time Control: No more constantly typing /tick freeze and /tick step 1 - these operations are performed with a simple right-click while holding a brick or bone.
• Action Undo: Accidentally broke a block? Easily undo it with Ctrl + Z.

Key Features

• More accurate entity boundaries compared to vanilla client
• Special tools for convenient work with the /tick command
• Real-time entity information display
• Game control at the source code level
• Multifunctional access paths
• 8 convenient visualizers
• Export areas to separate saves
• Undo and redo block actions (Ctrl + Z and Ctrl + Y)
• Chunk grid display
• Lazy chunk loading simulation
• And much more

System Requirements

• Fabric Loader version 0.8.0 and above
• fabric-carpet mod by gnembon (recommended but not required)
• Minecraft versions 1.16.4/1.16.5/1.17.1/1.18.2
• All standard Minecraft requirements

Mod Commands

/accessingpath

Management of custom nodes in access paths.

/countentity

Simplified counting of entities, especially grouped ones.

/ensure

Block state checking to identify display errors.

/entityconfig

Configuration of entity ability to move on blocks.

/entityfield

Access to Java fields of entities with decompilation support.

/entitylog

Logging selected entity data to file.

/entitysidebar

Management of information lines in entity sidebars.

/explode

Creating explosions for testing.

/exportsave

Exporting selected areas to new saves.

/freezentity

Pausing and resuming processing of selected entities.

/hud

Management of custom lines in the interface.

/lag

Freezing the game.

/lazyload

Simulation of lazy chunk loading.

/logmovement

Tracking entity movement under the influence of pistons and shulkers.

/logchunkbehavior

Recording chunk-related events.

/logpacket

Listening to packets between server and client.

/messcfg

Configuration of mod parameters.

/modify

Modifying entity properties.

/moventity

Moving entities in various ways.

/namentity

Naming entities without using anvils.

/partlykill

Destroying part of selected entities.

/poi

Scanning and editing points of interest.

/raycast

Visualization of raycasts.

/repeat

Repeating command execution.

/ride

Mounting entities on vehicles.

/rng

Managing random number generation.

/setexplosionblock

Configuring blocks created during explosions.

/tileentity

Working with block entity data.

Hotkeys

F3 + E: Toggle HUD with information about targeted entity F3 + M: Toggle HUD with information about local player F3 + S: Toggle HUD with information about server player Ctrl + Z: Undo block placement or breaking Ctrl + Y: Redo block placement or breaking

Visualizers

Entity Information HUD

Displays data about the entity the player is looking at, obtained at the end of server ticks, and information about the local player at the end of client ticks.

Explosion Rays

Shows lines between explosion center and points in entity boundaries, determining damage and velocity changes.

Server Boundaries

More accurate entity boundaries compared to vanilla F3 + B display.

Fluid Data

Displays boundaries, height, level, and flow direction of targeted fluid block.

Block Boundaries

Shows boundaries of targeted block.

Redstone Signal Level

Displays signal level of redstone elements.

Tools

Brick

Pausing and resuming time using /tick freeze

Bone

Advancing time by specific number of ticks during pause

Netherite Ingot

Removing all non-player entities

Important Notes

• The mod is in development stage, some features may work unstably
• Dedicated servers have limited support, recommended for single-player use
• Some commands may cause server freezing
• The mod is not intended for survival use as it may accidentally provide advantages

Development History

Mod development began in February 2021 for researching entity movement. Initially, HUDs, boundary visualizers, tools, and the /entityfield command were added. Functionality expanded over time as needed.

After April 2022, development accelerated, with many new features added and existing ones redesigned. Currently, the mod includes 28 commands, 70 settings, and 9 visualizers.