counting unit_type

[bejacomune]

Hello. I have a problem with the following code.

Code: Select all

	[if]
		[have_unit]
			type=Siege_2
		[/have_unit]
		[then]
			[store_unit]
				[filter]
					type=Siege_2
				[/filter]
				variable=Count_Siege_2
				kill=no
			[/store_unit]
			[foreach]
				array=Count_Siege_2
				[do]
					{VARIABLE_OP counting add 1}   # counting is assigned to 0 in the prestart
				[/do]
			[/foreach]
		[/then]
	[/if]
	

It sometimes generate the following error

Code: Select all

20230410 19:16:47 error scripting/lua: lua/core/wml.lua:232: bad argument #2 to 'set_variable_local' (WML table or scalar expected, got table)
stack traceback:
	[C]: in function 'wml.set_variable'
	lua/core/wml.lua:232: in metamethod 'newindex'
	lua/wml-utils.lua:47: in field 'write'
	lua/wml-tags.lua:406: in local 'cmd'
	lua/wml-utils.lua:144: in field 'handle_event_commands'
	lua/wml-flow.lua:19: in local 'cmd'
	lua/wml-utils.lua:144: in field 'handle_event_commands'
	lua/wml-flow.lua:5: in function <lua/wml-flow.lua:4>

the purpose of the code is to count how many units of type Siege_2 a side have so if there is another way, tell me about

[Toranks]

Try this instead of the [foreach] and without needing to define counting first:

Code: Select all

[set_variable]
  name=counting
  value=$Count_Siege_2.length
[/set_variable]

[Celtic_Minstrel]

Other than the typo, Toranks's code will do what you want.

That aside, this seems like a potential bug in [set_variable]…