Factorio Forums

Issue

• assigning a new table to the entity_filters property of a deconstruction planner does not replace ALL filter entries.
• while a sparse table clears unassigned indices below its highest index, filter entries above its highest index will not be cleared.

How to reproduce

local bp = game.player.cursor_stack -- use either this
local bp = game.blueprints[1] -- or this
local bp = magic -- or find your deconstruction planner any other way
-- once you have your deconstruction planner,
-- the below snippet should give a sparse pattern
local arr = {}
for k,v in pairs(bp.entity_filters) do
  arr[#arr+2] = v
end
bp.entity_filters = arr

1. create a deconstruction planner.
2. add some filters near the end.
3. use the above code to assign a sparse table.

• 

  planner.png (2.94 MiB) Viewed 1306 times

• the supplied example save has a planner to test.
• repeated use of this console command shows the issue.
• /c local bp = game.blueprints[1] local arr = {} for k,v in pairs(bp.entity_filters) do arr[#arr+2] = v end bp.entity_filters = arr

Expected result

• filters are moved into a pattern at the beginning.

  

  expected.png (2.42 MiB) Viewed 1306 times

Actual result

• filters at the end persist, until the new table reaches them.

  

  bug.png (2.76 MiB) Viewed 1306 times

SunBlade wrote: Tue Mar 25, 2025 4:26 pm Thanks for the fast work. but ...
the exact same bug is also present for tile_filters.