player detector or smth.lua

localdetector = peripheral.find("playerDetector")
while true do
players = localdetector.getPlayersInRange(1)
if players ~= nil
then
    term.clear()
    term.setCursorPos(1,1)
    term.write(#players)
    if #players >=1 then rs.setOutput("top",true)
    else
    rs.setOutput("top",false)
end
end
sleep(0.2)
end