Lua Game.getSpectators, custom area instead of square

[Ahilphino]

Ok so I was wondering if there is any good way to make game.GetSpectators return an area like this for example?
Let's say I have this: Game.getSpectators(playerpos, false, false, 3, 3, 3, 3) and I want getSpectators to only read an area like in the gif, what would be the best way to achieve that?

So far I have 2 ideas:

1. I have tried comparing posistions but i can't fkin get it to work or even understand how to do it nicely

2. Maybe I could use multiple game.getSpectators somehow and insert them into the same table (idk how to do that)? I guess that could work too

 

[Printer]

function onTargetCreature(creature, target)
    print(string.format("Caster name: %s, Target name: %s.", creature:getName(), target:getName()))
    return true
end

local combat = Combat()
combat:setParameter(COMBAT_PARAM_EFFECT, CONST_ME_FIREAREA)
combat:setArea(createCombatArea(AREA_CIRCLE3X3))
combat:setCallback(CALLBACK_PARAM_TARGETCREATURE, "onTargetCreature")

function onCastSpell(creature, variant)
    return combat:execute(creature, variant)
end