timer

--cc:Tweaked: Timer
--pastebin get mJKJ9hYq timer.lua



local timer = {}
local started = nil
local stopped = nil

function timer.start()
    stopped = nil
    started = os.clock()
end

function timer.stop()
    stopped = os.clock()
end

function timer.elapsed()
    if stopped == nil then
        return os.clock() - started
    else
        return stopped - started
    end
end

function timer.format(seconds)
    if seconds == nil then seconds = timer.elapsed() end

    local hours = math.floor(seconds / 3600)
    seconds = seconds % 3600
    local minutes = math.floor(seconds / 60)
    seconds = seconds % 60

    local stime = math.floor(seconds) .. "s"
    if(minutes > 0) then stime = minutes .. "m " .. stime end
    if(hours > 0) then stime = hours .. "h " .. stime end
    return stime
end

return timer