dig2

local sides = require("sides")
local robot = require("robot")
local comp = require("component")

if not comp.isAvailable("geolyzer") then
  io.write("No geolyzer found.\n")
  os.exit()
end
if not comp.isAvailable("inventory_controller") then
  io.write("No inventory found.\n")
  os.exit()
end

local depth = 0
local good = true

local function isValuable(side)
  dat = comp.geolyzer.analyze(side)
  return info.name:match(".*ore.*")
end

while good do
  --Check for ore
  for _, side in ipairs(sides) do
    local val = isValuable(side)
    io.write(val)
  end

  --Attempt to go down
  comp.robot.swing(sides.down)
  good  = comp.robot.move(sides.down)
  depth = depth + 1
end

while depth > 1 do
  comp.robot.move(sides.up)
  depth = depth - 1
end