[JASS] Rect or Region?

[DistantHaze]

In the following, is it necessary to do the whole "set r =" thing, or is the second trigger more efficient? I'm not really sure how the whole rect/region thing works?

function InitTrig_CaveEntrance takes nothing returns nothing
    local region r = CreateRegion ()
//
    set gg_trg_CaveEntrance = CreateTrigger ()
    call RegionAddRect (r, gg_rct_Cave)
    call TriggerRegisterEnterRegion (gg_trg_CaveEntrance, r, null)
    set r = null
    call TriggerAddCondition (gg_trg_CaveEntrance, Condition (function CaveEntrance_Condition01))
    call TriggerAddAction (gg_trg_CaveEntrance, function CaveEntrance_Action01)
endfunction

or

function InitTrig_CaveEntrance takes nothing returns nothing
    set gg_trg_CaveEntrance = CreateTrigger ()
    call TriggerRegisterEnterRegion (gg_trg_CaveEntrance, gg_rct_Cave, null)
    call TriggerAddCondition (gg_trg_CaveEntrance, Condition (function CaveEntrance_Condition01))
    call TriggerAddAction (gg_trg_CaveEntrance, function CaveEntrance_Action01)
endfunction

 

[Berb]

Pretty sure the second trigger won't work. gg_rct_Cave is a rect and the function requires a region.