Function parameters

[ThePlague]

When I make a unit group...
the condition function can take local variables right? Does this still work for the function I use for the actions?

Oh also what are the commands concerning local variable matrices?

 

[Tom Jones]

Local variables are local for a function, they can't be accessed outside the function. Etc.:

function whatever takes nothing returns boolean
    return GetUnitTypeId(u) == 'Hamg' //Syntax error, undeclared variable
endfunction

function ...
     local unit u = GetTriggerUnit()
     
     if whatever then
         call BJDebugMsg("This message shouldn't be displayed")
     endif
endfunction

This means that

the condition function can take local variables right? Does this still work for the function I use for the actions?

no, a callback function can't acces the calling functions locals. They can however acces event responses, such as GetTriggerUnit(). This is for example perfectly legal:

function KillTriggerUnit takes nothing returns nothing
    call KillUnit(GetTriggerUnit())
endfunction

function ...
    call KillTriggerUnit()
endfunction

 

[ThePlague]

wait...When can you use the 'takes' parameter then?
I thought you could for functions being used by ForGroupBJ(group, function)
Would basic variables be able to be taken? (integers, reals, booleans)



P.S. I solved the problem. Found a diff way to reference variable I wanted.

uhh also is there direct a way to determine the level of a buff that is affecting a unit?

 

[Tom Jones]

a) A function may have parameters as longs as it isn't used as a callback function.
b) GetUnitAbilityLevel(someunit,buffid)

 

[ThePlague]

GetUnitAbilityLevel() works for buffs? cool, trying now
thx for help +rep

edit: actually i gave you rep earlier now i cant