MJZ MC LUA Turtle Replace Floor

-- MJZ LUA Simple Turtle Floor Replacement for Minecraft Computercraft
-- Arguements and Arg Checking
local time = os.time()
local formattedTime = textutils.formatTime(time, true)
local width
local length
term.clear()
term.setCursorPos(1,1)
sleep(0.1)
print("-------------------")
print("Let's replace dat floor.")
print("What's the length?")
length = read()
print("-------------------")
print("What's the width? (going to the right side)")
width = read()
term.clear()
term.setCursorPos(1,1)
write("Replacing Floor ")
write(length)
write("x")
write (width)
print(".")
textutils.slowWrite("Turtle started at " .. formattedTime, 100)
print("-------------------")

function startpos()
print("No StartPos Saved")
end

function forward()
turtle.forward()
end

function right()
turtle.turnRight()
end

function left()
turtle.turnLeft()
end

function replaceFloor()
while not turtle.compareDown() do
turtle.digDown()
turtle.placeDown()
write(".")
end
end

function goRow()
 for l = 1, length-1 do
   forward()
   replaceFloor()
   l = l + 1
 end
end

function backPos()
turtle.turnRight()
turtle.forward()
end

-- starting code
startpos()
replaceFloor()
goRow()
for w = 1, width-1 do
 if width-1 == 0 then
  print("Stopped width")
 elseif (w % 2 == 0) then
  left()
  forward()
  replaceFloor()
  left()
  goRow()
 else
  right()
  forward()
  replaceFloor()
  right()
  goRow()
 end
w = w + 1
end
textutils.slowWrite("Job finished\n", 20)