HeightBoxLib

HeightBoxLib

Hitbox related Library that gets the entity's height!

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About this Mod

HeightBoxLib

Hitbox related library for Minecraft: Java Edition that gets the height of an entity's hitbox

How to use

Execute as either yourself or any other entity and run hblib:util/get_height or any of it's variants.
You will get both the height of both the position of the entity's eye anchor and the entity's hitbox height (eye and out)

Example of use: Making an entity face a torso of a player

##This is from the targetted entity
scoreboard players set #Player hblib.number 1
function hblib:util/get_height

##Full - Eye height
scoreboard players operation #Temp plate_havoc.temp = #Total hblib.number
scoreboard players operation #Temp plate_havoc.temp -= #Eye hblib.number
#Full /2
scoreboard players operation #Temp2 plate_havoc.temp = #Total hblib.number
scoreboard players operation #Temp2 plate_havoc.temp /= #2 plate_havoc.temp
#Halved + Temp
execute store result storage plate_havoc:custom torso double 0.01 run scoreboard players operation #Temp plate_havoc.temp += #Temp2 plate_havoc.temp

execute anchored eyes as 00000000-0000-0005-0000-0001000007e9 run function plate_havoc:game/misc/face_torso/execute with storage plate_havoc:custom

Variants

hblib:util/get_height | Gets height of entity's hitbox
hblib:util/get_height_dy | Height of entity's hitbox but subtracted by 0.01
hblib:util/get_halved | Height of entity's hitbox but halved
hblib:util/get_height_specific_scale | Needs a macro $(scale) to run. It gets the entity's hitbox but aims for a decimal point depending on the scale. Examples: (1=180.0, 2=360.0, 0.5=90.0, 0.01=1.8)\

Available Versions

Release 5release
MC 1.21.11datapack
March 17, 2026
Release 4release
MC 1.21.8datapack
September 9, 2025
3release
MC 1.21, 1.21.1, 1.21.2, 1.21.3, 1.21.4fabric, forge, neoforge, quilt
January 3, 2025
3release
MC 1.21, 1.21.1, 1.21.2, 1.21.3, 1.21.4datapack
December 28, 2024
Release 2release
MC 1.21, 1.21.1, 1.21.2, 1.21.3, 1.21.4datapack
December 21, 2024

How to Install HeightBoxLib on Your Server

1

Order Server

Order a Minecraft Java server with at least 3 GB RAM (4 GB recommended).

2

Set datapack Loader

In the panel under "Egg", select the datapack loader and matching Minecraft version (1.21.11).

3

Install Mod

Open the mod browser in the dashboard and search for "HeightBoxLib". Click "Install" – done! Alternatively, upload the .jar via SFTP to the /mods folder.

Compatibility

Mod Loaders

datapackfabricforgeneoforgequilt

Minecraft Versions

1.21.11, 1.21.8, 1.21.4 (+4 more)

Server-side

Required

Recommended RAM

4 GB(min. 3 GB)

Frequently Asked Questions

HeightBoxLib server crashes on startup – what to do?

Most common cause: wrong datapack version or insufficient RAM. Check the server log (latest.log) for "OutOfMemoryError" or "Mixin" errors. With Mado Hosting: ensure at least 3 GB RAM is allocated and the loader matches the mod version (1.21.11). You can switch loaders with one click in the panel.

Is HeightBoxLib compatible with datapack and fabric and forge and neoforge and quilt?

HeightBoxLib officially supports datapack, fabric, forge, neoforge, quilt for Minecraft 1.21.11, 1.21.8, 1.21.4. Note: Forge and Fabric mods are NOT cross-compatible – pick one loader and stick with it. The Mado dashboard automatically detects incompatible loader combinations.

Server lagging with HeightBoxLib – how to optimize performance?

Recommended RAM: 4 GB (per 8 players). Use /spark profiler to check if HeightBoxLib consumes the most tick time. Common fixes: reduce server view-distance to 8-10, install "performant" or "starlight" as supplementary mods on Forge. With Mado Hosting, your server runs on NVMe SSDs with dedicated CPU cores for minimal latency.

Rent Modded Server

Install HeightBoxLib with just one click on your server.

Recommended RAM
4 GBab €8/mo
Min. 3 GB | +1 GB pro 8 Spieler
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NVMe SSD Storage
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Details

License
MIT License
Server-side
Required

Supported Versions

1.21.111.21.81.21.41.21.31.21.21.21.11.21