Lua Script dont work

[Apap]

function onUse(cid, item, frompos, item2, topos)
local rogi = {lewy_gorny = {x=200, y=200, z=3}, prawy_dolny = {x=250, y=250, z=3}}
local gracz = 0
for x=rogi.lewy_gorny.x, rogi.prawy_dolny.x do
	for y=rogi.lewy_gorny.y, rogi.prawy_dolny.y do
		local pozycja = {x=x, y=y, z=rogi.lewy_gorny.z, stackpos=253}
		local gracz = getThingfromPos(pozycja)
		if(isPlayer(gracz) == TRUE) then
			gracz = gracz+1
		end
	end
end
if(gracz == 0) then
	doTeleportThing(cid,{x=220, y=210, z=3})
else
	doPlayerSendCancel(cid,"Gracz jest w srodku.")
end
return TRUE
end

it is dont work please help me of this script

 

[Pitufo™]

Can you explain what are you trying to do and what errors are you haveing, it seems you are cheking if there is a player in that area... if there is 0 players it will teleport you if not a message comes to you, am i correct?