Get the TPS of the /r/FTB server

local comp_faces = {"Front","Back","Left","Right","Top","Bottom"}
local mon = nil
for i=1,#comp_faces do
                if peripheral.getType(string.lower(comp_faces[i])) == "monitor" then
                                mon = peripheral.wrap( string.lower(comp_faces[i]))
                end
end


function getTime()
        http.request("http://alienmc.co/checkTPS.php")
        local requesting = true
        local valid = false
        local respondedText = ""
        while requesting do
                local event, url, sourceText = os.pullEvent()
                if event == "http_success" then
                        respondedText = sourceText.readAll()
                        valid = true
                        requesting = false
                elseif event == "http_failure" then
                        requesting = false
                end
        end

        return tonumber(string.match(respondedText,"(%d+).%d+")) +tonumber(string.match(respondedText,"%d+.(%d+)"))/10


end

while true do
        local currTick = getTime()
        if mon ~= nil then
                mon.clear()
                mon.setTextScale(2)
  mon.setTextColor(colors.white)
                local x,y = mon.getSize()
                mon.setCursorPos(x/2 - 3,y/2)
                mon.write("TPS: ")
                if currTick < 6 then
                        mon.setTextColor(colors.red)
                elseif currTick >= 6 and currTick < 15 then
                        mon.setTextColor(colors.yellow)
                else
                        mon.setTextColor(colors.green)
                end
                mon.write(currTick)
        else
                print("TPS: "..currTick)
        end
        sleep(20)
end