Create Cursor Anchor Fix

Fixes the cursor in Create's value settings screens on Linux — including native Wayland.

When you open a Create value settings window (Rotation Speed Controller, creative motors, anything
using ValueSettingsScreen), Create warps the OS cursor onto the current value and reads it back
to decide which value you picked. On Linux that breaks:

• X11 / XWayland — Minecraft sometimes hands Create stale cursor coordinates, so the wrong
  value gets saved.
• Native Wayland — the compositor forbids moving a visible cursor, so the warp does nothing
  and the value snaps to zero / a wrong number.

This client-side mod fixes both.

What it does

• X11 / XWayland — feeds Create the live cursor position, so the saved value always matches
  where your cursor is.
• Native Wayland — uses an anchor/offset model instead of relying on the (forbidden)
  cursor warp. The value highlight lands on the current setting when the screen opens and follows
  your mouse relatively, with no cursor teleporting. While the screen is open the system cursor is
  hidden and the highlight itself acts as the pointer — so there is no mismatch between an
  un-movable arrow and the highlight (this also fixes setups using cursor-pinning GLFW patches like
  glfw-wayland-minecraft-cursor).

Power Grid compatibility

Power Grid's settings screens subclass Create's screen and override the save logic to read the
slider/cursor on their own, so the base fix doesn't reach them and they'd still save the raw
cursor position. This mod includes a compatibility layer that applies the same correction to Power
Grid's screens, so values save correctly there too. Power Grid is not required — the compat
layer is skipped automatically when it isn't installed.

Requirements

• Minecraft 1.21.1
• NeoForge 21.1.219+
• Create 6.0.9+ (tested on 6.0.10)

Client-side only — not needed on the server.

Open source

Clean-room implementation, MIT licensed. Source, issues and builds:
https://github.com/LowaSC/create-cursor-anchor-fix