navi

function goto(xx,zz)
  x = tonumber(xx)
  z = tonumber(zz)
 rednet.open("left")
   cx, cy, cz = gps.locate()
  function getDirecX()
      if x > cx then
        dirX = 1
      else
        dirX = 3
      end
  end
  function getDirecZ()
    if cz > z then
      dirZ = 0
    else
      dirZ = 2
  end
  end

  function calx()
    for i = 1, dirX do
      turtle.turnRight()
    end
  end
  function calz()
    for p = 1,dirZ do
      turtle.turnRight()
    end
  end
  function uncalx()
    for k = 1, dirX do
      turtle.turnLeft()
    end
  end
  function uncalz()
    for o = 1, dirZ do
      turtle.turnLeft()
    end
  end
  function goZ()
    getDirecZ()
    calz()
    distzz = cz - z
    distz = math.abs(distzz)
    for p = 1, distz do
      turtle.forward()

    end
    uncalz()
  end
  function goX()
    getDirecX()
    calx()
    distxx = cx - x
    distx = math.abs(distxx)
    for q = 1, distx do
     turtle.dig()
     turtle.forward()
    end
    uncalx()
  end
  goZ()
  goX()
end