#!/usr/bin/ruby

# WTFPL licensed
# written by yunta83@gmail.com

address = "www.google.com"

low = (ARGV[0] or 20).to_f
high = (ARGV[1] or 150).to_f

history = (ARGV[2] or 10).to_i


open("|ping #{address}") { |ping|
	pings = []
	lastColor = ""
	while true
		ping.readline =~ /time=(\d+(\.\d+)?)/
		pings << $1.to_f
		max = pings.max
		val = (max - low)*(255/(high-low))
		p max
		val = [255,[0,val].max].min
		color = "%02X%02X00"%[val,255-val]
		`./g9led #{color}` if color != lastColor
		pings.shift if pings.size >=history
		lastColor = color
	end
}