sgps

--UPDATE SGPS
local towerdata = http.get("http://pastebin.com/raw.php?i=MCCNBq1a").readAll()
local fl = fs.open("data/twrs", "w")
fl.write(towerdata)
fl.close()
local h = fs.open("data/twrs", "r")
towers = h.readAll()
fl.close()
--END UPDATE SGPS
args = {...}
local towerstable = textutils.unserialize(towers)

local function getClosestTower()
  local twrst = {}
  local twrsn = {}
  for k,v in pairs(towerstable) do
    local t = v[x]+v[y]+v[z]
    table.insert(twrst, k)
    table.insert(twrsn, t)
  end
  local num = math.max(unpack(twrsn))
  local name = ""
  for k,v in pairs(items) do
    if(v==num) then
      name = k
    end
  end
  return name
end
if args[1] == "locate" then
  local loc = gps.locate()
  --local loctext = loc[1]..", "..loc[2]..", "..loc[3]
  --print("You are at: "..loctext..".")
  print("Your closest tower is: "..getClosestTower())
end