[General] Question about bj_wantDestroyGroup=true

[HerlySQR]

What happened when I do bj_wantDestroyGroup=true?, because I thought that just eliminate the groups created in GUI in the same trigger, but I had this problem:
[General] - I'm tired of this (Workers doing action that they shouldn't do)
And results that I checked that an important group ("Trabajadores") was eliminated at some point so I removed the function "bj_wantDestroyGroup=true" the group wasn't created in the same trigger and results the group didn't get eliminate, so I think "bj_wantDestroyGroup=true" destroy all GUI groups, Am I correct?

 

[Chaosy]

In short, a unit group is just a single line in GUI but in JASS it becomes more complex.
Remember, the editor will always translate your GUI to JASS upon running/saving the map.

Using a unit group uses the ForGroupBJ function

function ForGroupBJ takes group whichGroup, code callback returns nothing
    // If the user wants the group destroyed, remember that fact and clear
    // the flag, in case it is used again in the callback.
    local boolean wantDestroy = bj_wantDestroyGroup
    set bj_wantDestroyGroup = false

    call ForGroup(whichGroup, callback)

    // If the user wants the group destroyed, do so now.
    if (wantDestroy) then
        call DestroyGroup(whichGroup)
    endif
endfunction

At the bottom, you can see that the group is destroyed if bj_wantDestroyGroup is set to true beforehand.
And at the top bj_wantDestroyGroup is set to false, meaning that it resets itself to false (default value) every time a unit group is used

Once bj_wantDestroyGroup is set to true it destroys the next unit group created.

 

[HerlySQR]

In short, a unit group is just a single line in GUI but in JASS it becomes more complex.
Remember, the editor will always translate your GUI to JASS upon running/saving the map.

Using a unit group uses the ForGroupBJ function

function ForGroupBJ takes group whichGroup, code callback returns nothing
    // If the user wants the group destroyed, remember that fact and clear
    // the flag, in case it is used again in the callback.
    local boolean wantDestroy = bj_wantDestroyGroup
    set bj_wantDestroyGroup = false

    call ForGroup(whichGroup, callback)

    // If the user wants the group destroyed, do so now.
    if (wantDestroy) then
        call DestroyGroup(whichGroup)
    endif
endfunction

At the bottom, you can see that the group is destroyed if bj_wantDestroyGroup is set to true beforehand.
And at the top bj_wantDestroyGroup is set to false, meaning that it resets itself to false (default value) every time a unit group is used

Once bj_wantDestroyGroup is set to true it destroys the next unit group created.

So why this happened?

but I had this problem:
[General] - I'm tired of this (Workers doing action that they shouldn't do)
And results that I checked that an important group ("Trabajadores") was eliminated at some point so I removed the function "bj_wantDestroyGroup=true" the group wasn't created in the same trigger and results the group didn't get eliminate

 

[HerlySQR]

I checked in the trigger is a function that runs another trigger when I am using that eliminated group before a function that creates another group, so bj_wantDestroyGroup=true destroy the next USED group.

Edit: Correction, it only happen if I use "Pick every unit in...", and no matter if the group is a variable.

 

[IcemanBo]

Yes, no matter if you have stored it into a variable.

 

[Duckfarter]

What happens if you do something like this. Does this create a unit group leak or is it automatically discarded?

• Set VariableSet Nearby_Target_Kenneth = (Random unit from (Units within 3200.00 of Loc[7] matching (((Unit-type of (Matching unit)) Equal to Scared Pig) and ((((Matching unit) is alive) Equal to True) and ((((Matching unit) is invulnerable) Equal to False)

 

[IcemanBo]

Why would it be automatically destroyed in your example? You can use variable + call destroy(), or use bj_wantDestroyGroup.
Working in your case with bj_wantDestroyGroup would be fine. "(Random unit from)" would destroy the created group "(Units within... )", if bj_wantDestroyGroup is true.

 

[Duckfarter]

Why would it be automatically destroyed in your example? You can use variable + call destroy(), or use bj_wantDestroyGroup.
Working in your case with bj_wantDestroyGroup would be fine. "(Random unit from)" would destroy the created group "(Units within... )", if bj_wantDestroyGroup is true.

Because it doesnt use the exact function pick every unit, or perheaps it does and is just hidden in gui. I dont know how it works. Also setting Loc = Position of unit doesnt create a leak at position of unit if Loc is removed, it is however a bit different ofcourse. Thanks for the reply.

 

[IcemanBo]

Working with variables and destroying not hiddenly, makes it some easier to understand, imo. Working with JASS/Lua would improve comprehension even more.