A fabric mod and api that lets you change player gravity direction.

This mod adds 6 items that let you change your gravity to any of the 6 axis directions.
These items are currently uncraftable and can be found in the tools tab of creative menu.
This mod can also be used as an api to let other mods change player gravity.

Fabric Api
Cloth Config

Mod Menu

This mod has a config located in .minecraft/config/gravitychanger.json. You can edit it manually or in game using modmenu.
The config has 2 categories: Client and Server.
Client category contains options that only take effect on the client and need to be set on the client.
Server category contains options that only take effect on the server and need to be set in the server config. If you are playing in singleplayer your server uses the same config as your client and you can change it from modmenu. If you are playing on a server the server config is not updated when you change it on your client, it can only be edited using the server config file.

First clone this repo and run gradlew build.
Copy the resulting dev jar from build/libs/ into libs/ inside your project.
Then add the following to your project:

gravitychanger_version = 0.0.1-1.17.1

Replace 0.0.1-1.17.1 with the version of the jar you have in libs/.

repositories {
    flatDir {
        dirs "libs"
    }
}

dependencies {
    modImplementation ":GravityChanger-${project.gravitychanger_version}-dev"
}

"depends": {
    "gravitychanger": "^0.0.1"
}

Replace 0.0.1 with the lowest version you need

Now you should be able to cast a PlayerEntity instance into RotatableEntityAccessor and use it's methods gravitychanger$getGravityDirection and gravitychanger$setGravityDirection to get and set gravity for that player.