rng = {}
totally_random_seed = tonumber(os.date("%Y%H%M%S"))
math.randomseed(totally_random_seed)

rng.generator = (seed, m, n) ->
	seed = seed or tonumber(os.date("%Y%S"))
	co = coroutine.wrap(() ->
		while true
			math.randomseed(seed)
			seed = math.random(m,n)
			coroutine.yield(seed)
	)
	co, seed

rng.randomstring = (charset, length) ->
	t = {}
	charset_len = #charset
	for i = 1, length
		char = math.random(charset_len)
		t[i] = charset\sub(char,char)
	table.concat(t)

rng.hexstring = (length) ->
	rng.randomstring("0123456789ABCDEF", length)

rng.numstring = (length) ->
	rng.randomstring("0123456789", length)

rng