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Polysit

A minimal sit mod for Fabric & Quilt using Polymer.

Install / Use

/learn @Modflower/Polysit

README

<img width="128" src="src/main/resources/pack.png" alt="Polysit Icon" align="right"/>

Polysit

A polymer-based server-side sit mod for Fabric & Quilt!

Installation

Requirements:

Install Minecraft, Polymer, Polysit and your mod loader of choice. You only need to install it on the server, but there's a client-sided enhancement if one prefers.

You also have the option of using it in singleplayer or with friends over LAN.

Using

You can right-click/use any slab, stair and bed to sit on it.

There's also /sit, which allows you to sit practically anywhere, even on cacti... if you're immune to thorns.

For clients with the mod, there's also a keybind named Sit, which defaults to G. It'll similarly let you sit anywhere, if the server is running Polysit.

[!NOTE] Servers using other mods or plugins that happen to also include /sit as a command, or using an older version of Polysit, may not use the same checks or be as seamless as the latest version.

If the server does not support or blocks /sit, this keybind may be unavailable and cannot be used.

Unfortunately, this is unavoidable as the only method Polysit uses on the client is the /sit command.

Compatibility

It is compatible with any mod that implements standard slabs, stairs and beds. It's even compatible with the scale attribute, and other scaling mods such as Pehkui.

[!NOTE] 1.20.1 and older has poorer support for Pehkui. Bugs in relation to scaling while sitting will occur. There are still mitigations for Polysit's other behaviours.

If for any reason, there's a slab, stair, bed, or any other seat-like block that doesn't work, feel free to submit a bug report.

Changes to Vanilla Logic

Polysit does try to fix bugs that were found in development, or directly caused by its functionality.

  • Moving the player out of blocks when getting up.
  • Forcing the player to take a smaller pose to avoid suffocating when getting off a seat.
    • This applies generically to any seat, not just Polysit's.
  • Forcefully sending relevant packets for bugs caused by Mojang's fixes or changes.
  • Beds during the day can be right-clicked to sit on it.

All help to ensure that Polysit provides the best UX it possibly can while also maintaining vanilla-esk logic.

Building

  1. Make sure you have the JDK. You can get it from Adoptium if you don't already have it. Java 17 is required for <=1.20.4. Java 21 is required for >=1.20.5.
  2. Run gradlew build
  3. Get the build from builds/libs.

Related Skills

View on GitHub
GitHub Stars10
CategoryDevelopment
Updated1mo ago
Forks1

Languages

Java

Security Score

95/100

Audited on Feb 16, 2026

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