Changelog

Version: 0.3.6
Date: 2026-11-05
  Bugfixes:
    - Fixed tank voiding on Factorio 2.1, where remove_fluid takes a fluidbox index and an amount.
    - Fluid readers that report the fluidbox index are now preferred, so multi-fluidbox modded
      tanks void from the right slot.

Version: 0.3.5
Date: 2026-11-05
  Bugfixes:
    - Fixed tank voiding on Factorio 2.1, where remove_fluid takes the fluid and amount as two arguments.

Version: 0.3.4
Date: 2026-11-05
  Bugfixes:
    - Storage tank toggle panel now anchors to the pipe window (Factorio 2.1 has no separate tank window).
    - Tank voiding tries every known fluid API (2.0 and newer) and remembers the one that works.
    - If tank voiding still fails, the chat message now includes the exact error.

Version: 0.3.3
Date: 2026-11-05
  Bugfixes:
    - The toggle panel now finds the storage tank window by scanning the game's GUI types, so it
      snaps onto the tank window instead of floating.
  Changes:
    - If no window match is found, the floating panel starts closer to the entity window, can be
      dragged by its title bar, and remembers where you put it.

Version: 0.3.2
Date: 2026-11-05
  Bugfixes:
    - Fixed a crash on Factorio 2.1 ("LuaEntity doesn't contain key fluidbox") when a tank voided fluid.
    - Tank fluid access is now crash-proof: if the fluid API is unavailable, tank voiding switches
      off with a chat message instead of erroring. Chests keep working.

Version: 0.3.1
Date: 2026-11-05
  Bugfixes:
    - Fixed the toggle panel not appearing on storage tanks. If the game has no matching anchor
      for an entity's GUI, the panel now floats beside it instead of staying hidden.

Version: 0.3.0
Date: 2026-11-05
  Changes:
    - Renamed to WePlay: Sink Last Slot (internal name WePlaySinkLastSlot).
    - Settings renamed to the wp-sink-last-slot- prefix.
  Features:
    - Storage tanks (including modded ones) get a "Void excess fluid" toggle that keeps the top
      of the tank free by voiding fluid above the headroom line.
    - New map settings: "Void tanks by default" and "Tank headroom (fluid units)", default 1000.
      Tanks smaller than the headroom keep 10% of their capacity free instead.

Version: 0.2.0
Date: 2026-11-05
  Changes:
    - Removed the separate sink chest entity. Every chest (regular and logistic) now has a
      "Sink last slot" toggle in its GUI.
    - New map setting "Sink chests by default" decides the state of chests nobody has toggled.
    - Removed the slot-count startup setting (chests keep their own sizes).
  Features:
    - Copy-paste entity settings carries the toggle between chests.
    - Cloned chests keep their toggle.

Version: 0.1.0
Date: 2026-11-05
  Features:
    - Sink chest: fills normally, deletes anything that lands in its last usable slot.
    - Respects the red inventory limit bar (sinks the slot just before it).
    - Startup setting for slot count, runtime setting for check interval.
    - Unlocked by Logistics.