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Planned next: Should work

Version
1.0.1
Author
daa0502-max
Page
modrinth.com/mod/hotbarbumpers

HotbarBumpers

Calls something that is on Kiln's roadmap. Parts of it may already run.

Evidence

Ran on Kiln's test stand (2026-11-04): HotbarBumpersClient did not start: java.lang.NoSuchFieldError: Class com.mojang.blaze3d.platform.InputConstants does not have member field 'com.mojang.blaze3d.platform.InputConstants$Key UNKNOWN'.

What it needs from Kiln

  • com.mojang.blaze3d.platform.InputConstants.Key
  • net.minecraft.client.ScrollWheelHandler
  • net.minecraft.world.entity.player.Inventory
  • InputConstants.UNKNOWN
  • Gui.overlay()
  • LocalPlayer.getInventory()

On the roadmap: Minecraft's libraries and client API (0.2), Code next to data (0.3)

In the author's words

Adds configurable Next Hotbar Slot and Previous Hotbar Slot keybindings for Fabric.

Scan

Scanned on 4 November 2026 against Kiln 0.2.0, file hotbarbumpers-1.0.1.jar. The scan reads the mod's classes; it does not run them.

In the development builds

Should work in the development build 2026-11-04 (ccef3e4).

An automatic test ran it on Kiln's test stand (its own code, with a scripted minute of play in place of the game) and nothing broke, and everything it called is written in Kiln: it most likely works. Not checked in the game by hand yet.

Ran on Kiln's test stand (2026-11-04): client entrypoint started, 1200 ticks without errors, nothing drawn on the HUD.

  • net.minecraft.client.ScrollWheelHandler
  • Gui.overlay()
  • Inventory.getSelectionSize()

Development builds are main as it is today, not a release: see the FAQ.

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