Help with reward!

	<globalevent name="LSM Reward" interval="30" script="lsm reward.lua"/>

function roomCheck()

	--[[IMPORTANT INFORMATION FOR CHANGING ROOM:	
		Put the smaller numbers in fromX, fromY, fromZ 
		Put the bigger numbers in toX, toY, toZ
	]]

	local room = {
		fromX = 666,
		fromY = 667,
		fromZ = 6,
		toX = 1337,
		toY = 1338,
		toZ = 9
	}

	local reward = 2160

	local amt_of_ppl = 0
	local winner = 0
	for x = room.fromX, room.toX do
		for y = room.fromY, room.toY do
			for z = room.fromZ, room.toZ do
				local pos = {x=x, y=y, z=z, stackpos=253}
				local thing = getThingFromPos(pos)
				if thing.itemid > 0 then
					if isPlayer(thing.uid) == true then
						amt_of_ppl = amt_of_ppl + 1
						winner = thing.uid
					end
				end
			end
		end
	end

	if amt_of_ppl == 1 then
		doPlayerAddItem(winner, reward, 1, TRUE)
		doPlayerBroadcastMessage(winner, "Woot, I am the last one standing!")
	end

function onThink(cid, interval)
	addEvent(roomCheck, 0)
	return true
end