Another basic lua query

[Spannerbag]

...__cfg of unit has specific meaning (similar to [store_unit])....

Good to know unit context of __cfg, thanks.

... __ attributes and functions are not implemented in Lua but anyways you need to check documentation.

When the ***** documentation is helpful...

Thanks for the clarification!

Cheers!
-- Spannerbag

[Spannerbag]

Try this:

Code: Select all

local my_filter = {
  side = wesnoth.current.side,
  { "filter_adjacent", { id = target.id } }
}
my_filter = wml.merge(filter_follower, my_filter, 'append')
wesnoth.interface.add_chat_message(wml.tostring(my_filter))

Faffed around for awhile trying to understand why variables were correctly interpreted sometimes but not always.
Don't fully know why but am 99% certain it's my lack of familiarity with lua
Anyway got the following to run without errors - - and it returned expected/hoped for/correct values.
It even seemed to produce the desired behaviour!

Code: Select all

  local filter_follower = wml.get_child(cfg, "filter_follower")

-- Debug
  local my_filter = wml.merge(filter_follower, { side = wesnoth.current.side, wml.tag.filter_adjacent { id = target.id } } )
  wesnoth.interface.add_chat_message(wml.tostring(my_filter))

  local adj_followers = wesnoth.units.find_on_map ( wml.merge(filter_follower, { side = wesnoth.current.side, wml.tag.filter_adjacent { id = target.id } } ) )
 

Seems to produce identical outputs with or without append however it was good to demonstrate that syntax as I'd struggles with that, too.

With append:

wtest.jpg (123.46 KiB) Viewed 39 times

Without

wtestnoappend.jpg (107.28 KiB) Viewed 39 times

Whilst it probably wasn't worth all this effort just to remove a few and clauses, I've learned a bit more about lua!

Thanks to everyone who took the trouble to reply, your time and trouble are greatly appreciated.

Cheers!
-- Spannerbag