ComputerCraft lzMove

os.loadAPI('lz')

lz.load('turtle', 't')

local arguments = {...}

assert(#arguments > 0, 'No direction passed')

local verify = function(direction)
  local valid = {
    up = true,
    down = true,
    forward = true
  }

  assert(valid[direction], 'Invalid direction \'' .. direction .. '\'')
end

local direction = arguments[1]
verify(direction)

local steps = arguments[2] or 1

lz.t[direction](steps)