[Request] Checking the number of players in area.

[GarQet]

Hello OTlanders,
I have a small problem with my script, it is that I don't know how I can retrieve the number of players that are in the area. Depending on the outcome (number of players on area) script to continue executing commands.
I've tried to write this script, here it's:
actions/scripts/test.lua

function onUse(cid, item, fromPosition, itemEx, toPosition)
	local table = {}
	if(table.empty(getSpectators({x=146,y=1322,z=7}, 37, 50)) and table.empty(getSpectators({x=146,y=1322,z=6}, 37, 50)) and table.empty(getSpectators({x=146,y=1322,z=5}, 37, 50))) then
		doPlayerSendCancel(cid, "Sorry not possible, because someone is actually doing this mission.")
	else
		doSendMagicEffect(getCreaturePosition(cid), CONST_ME_POFF)
		doTeleportThing(cid, {x=128,y=1351,z=7})
		return true
	end
end

lib/050-function.lua

table.empty = function (t)
return next(t) == nil
end

Errors:

attempt to call field 'empty' (a nil value)

This should work, but it doesn't work.
Has anyone any idea how to do that work properly?

Regards, GarQet.
//Sorry for my English.

 

[GarQet]

Bump

 

[Cykotitan]

function onUse(cid, item, fromPosition, itemEx, toPosition)
	for z = 7, 5, -1 do
		for x = 109, 183 do
			for y = 1272, 1372 do
				local v = getTopCreature({x=x, y=y, z=z}).uid
				if v ~= 0 and isPlayer(v) then
					return doPlayerSendCancel(cid, 'Sorry not possible, because someone is actually doing this mission.')
				end
			end
		end
	end
	doSendMagicEffect(getThingPos(cid), CONST_ME_POFF)
	doTeleportThing(cid, {x=128,y=1351,z=7})
	return true
end

 

[Luciano]

ILL KELL U ALL ! lol

 

[GarQet]

function onUse(cid, item, fromPosition, itemEx, toPosition)
	for z = 7, 5, -1 do
		for x = 109, 183 do
			for y = 1272, 1372 do
				local v = getTopCreature({x=x, y=y, z=z}).uid
				if v ~= 0 and isPlayer(v) then
					return doPlayerSendCancel(cid, 'Sorry not possible, because someone is actually doing this mission.')
				end
			end
		end
	end
	doSendMagicEffect(getThingPos(cid), CONST_ME_POFF)
	doTeleportThing(cid, {x=128,y=1351,z=7})
	return true
end

Thanks a lot, rep+