MC forward

local args = { ... }
if #args ~= 1 then
  print( "Usage: fwd <param1>" )
  print( "-------------------" )
  print( "Moves forward <param1> blocks." )
else
  times = tonumber(args[1])
  if turtle.getFuelLevel() >= times then
    print( "Not enough fuel.")
  else
    for i=1,times do
        turtle.forward()
    end
  end
end