require 'accelerometer'
include Math
require 'net/http'
Net::HTTP.version_1_2
SERVER 192.168.0.1

waitSec=0.01 # = each 100ms
averageNum=(1.0/waitSec).to_i

def send si
  puts si
  Net::HTTP.get_print SERVER, '/send?'+si.to_s  # here!!
end

def process(gxy)
  si=nil
  si=1 if gxy> 0.5
  si=2 if gxy> 2
  si=3 if gxy> 5
  si=4 if gxy> 20
  si=5 if gxy> 40
  si=5.5 if gxy> 100
  si=6 if gxy> 140
  si=6.5 if gxy> 200
  si=7 if gxy> 400
  send(si) if si&&si>3
end

class Array
 def average
   val=0.0
   self.length.times{|i| val+=self[i] }
   return val/self.length.to_f
 end	 
end

period=ARGV[0].to_i*(1.0/waitSec).to_i
acc=Accelerometer.new
gdatum=Array.new(averageNum) {|i| 0.0 } 
gi=0
period.times do |i|
  gx,gy=acc.getAccelerometerData.map{|v| 
    980.0*tan((v.to_f)/50.0*22.5/360.0*6.28)}
  gdatum[gi]=sqrt(gx*gx+gy*gy)
  gi=gi+1
  if gi==averageNum
    process gdatum.average 
    gi=0
  end
  sleep waitSec
end