timer = {}
timerQueue = {}

function timer.insert(func, args, delay)
    table.insert(timerQueue, {func = func, args = args, delay = delay})
    return #timerQueue
end

function timer.update(dt)
    for i = 1, #timerQueue do
        if timerQueue[i] then
            if (timerQueue[i].delay-dt < 0) then
                timer.push(i)
                i = i-1
                print(i)
            else
                timerQueue[i].delay = timerQueue[i].delay-dt
            end
        end
    end
end

function timer.pop(indx)
    table.remove(timerQueue, indx)
end

function timer.push(indx)
    if timerQueue[indx].args then
        timerQueue[indx].func(unpack(timerQueue[indx].args))
    else
        timerQueue[indx].func()
    end
    table.remove(timerQueue, indx)
end

function timer.addDelay(indx, delay)
    timerQueue[indx].delay = timerQueue[indx].delay + delay
end

function timer.setDelay(indx, delay)
    timerQueue[indx].delay = delay
end