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No Boat Lag
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No Boat Lag

by microwavedram · on Modrinth

Which build do you need?

This mod ships a separate file for every mod loader and every version of the game. Pick both, then download — the wrong build installs fine and then does nothing in the game.

Mod loader

Minecraft version

⬇ Download for 1.21–1.21.11 · Paper⬇ Download for 1.21–1.21.11 · Purpur⬇ Download for 1.21.8 · Spigot⬇ Download for 1.21.4 · Spigot⬇ Download for 1.21.1 · Spigot
I don't know my version or loader
Open the Minecraft launcher and look at the profile you play on — it names both, like fabric-loader-1.21.4. The version also shows in the bottom-right corner of the game's main menu.
No loader in the profile name? Then it's plain Minecraft, and these mods won't run — you need Fabric or NeoForge installed first.
No Boat Lag — screenshot 1

No Boat Lag

A paper plugin that fixes buggy behaviour when boats collide, intended for use when Ice Boat Racing.

Note: Make sure to Increase moved-wrongly-threshold in spigot.yml or boats may freeze in place.

Boat Lag Explanation

Boat collisions are handled by the client, but the server also does collision checks. The boat seen by players is the "interpolated model", which lags behind the actual position of the boat due to ping and the movement interpolation's natural position offset (and some amount of mojang jank)

The boat driver's client's collision calculations handle everything required, but the server will still do collision checks between the driver's boat and the real position of other boats which results in the server sending VehicleMove packets to the driver which will temporarily freeze the driver in place and/or cause some really unsatisfactory rubberbanding.

This plugin disables the packet sent and removes the buggy behavior, a similar fix is in place on most major Ice Boat Racing servers.


Full Credit to Makkuusen for coming up with the fix. It has been pulled from the TimingSystem plugin and put into its own package for use on other servers, where the full TimingSystem plugin is severely overkill. As of 2.0.0 the fix now uses a new approach with packet events.

Quick facts

Install steps are the general flow for this file type — How to install Minecraft Java mods & modpacks walks through it step by step.

Verified by MCModsHub

These come from our own check of the pack file, not from the source page.

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