Loop Repeats Itself

local BlocksBetweenTree = 5 --"make your variables local"
local TreesInLine = 1			 --"as a convention, capitals are not used at the beggining"
local TreesTaken = 1
local Lines = 1
local LinesTaken = 1
local Side = "Left"
local Replant = 1
local Spotted = 0
local Cutting = 0


function fw()
  repeat  --"I prefer the repeat loop in this case, just personal preference"
	turtle.attack()
	sleep(0)
  until turtle.forward()
end

function sapling()
  turtle.turnRight()
  turtle.turnRight()
  for a = 1, 4 do
	fw()
  end
  Total = 0
  while Total < 128 do
	turtle.select(1)
	turtle.suck()
	Total = 0

	for slot = 1, 16 do
	  Total = Total + turtle.getItemCount(slot)
	end
  end
  turtle.turnLeft()
  turtle.turnLeft()
  for a = 1, 4 do
	fw()
  end
end

function place()
  turtle.select(1)
  if turtle.getItemCount(1) == 0 then
	turtle.select(2)
  end
  if turtle.getItemCount(2) == 0 then
	turtle.select(3)
  end
end

function check()
  Spotted = 0
  if turtle.detect() then
	turtle.digUp()
	turtle.up()
	Spotted = 1
	if turtle.detect() then
	  Spotted = 0
	  Cutting = 1
	return cut()
  end
else
  Spotted = 0
end
return next()
end

function cut()
  turtle.down()
  turtle.select(2)
  turtle.dig()
  fw()
  while turtle.detectUp() do
	turtle.digUp()
	turtle.up()
  end
  while not turtle.detectDown() do
	turtle.down()
  end
  return next()
end

function unload()
  for slot = 1, 16 do
	turtle.select(slot)
	turtle.drop()
  end
end

function next()
  if Cutting == 1 and Replant == 0 then
	fw()
  end
  if Cutting == 1 and Replant == 1 then
	turtle.back()
	place()
	turtle.place()
	turtle.up()
	fw()
	fw()
	turtle.down()
  end

  if Spotted == 0 and Replant == 1 and Cutting == 0 then
	place()
	turtle.place()
	turtle.up()
	fw()
	fw()
	turtle.down()
  end
  if Spotted == 0 and Replant == 0 and Cutting == 0 then
	fw()
	fw()
  end
  if Spotted == 1 and Cutting == 0 then
	fw()
	fw()
	turtle.down()
  end
  Spotted = 0
  Cutting = 0
  return go()
end

function go()
  if TreesTaken < TreesInLine then
	BlocksMoved = 1
	TreesTaken = TreesTaken + 1
	while BlocksMoved < BlocksBetweenTree do
	  fw()
	  BlocksMoved = BlocksMoved + 1
	end
  else
	rotate()
  end
  return check()
end

function rotate()
  turtle.down()
  if Side == "Left" then
	turtle.turnLeft()
	BlocksMoved = -1
	while BlocksMoved < BlocksBetweenTree do
	  fw()
	  BlocksMoved = BlocksMoved + 1
	  Side = "Right"
	end
	turtle.turnLeft()
	BlocksMoved = 1
	TreesTaken = 1
	return check()
  elseif Side == "Right" then
	if LinesTaken < Lines then
	  turtle.turnRight()
	  BlocksMoved = -1
	  while BlocksMoved < BlocksBetweenTree do
		fw()
		BlocksMoved = BlocksMoved + 1
		Side = "Left"
	  end
	  turtle.turnRight()
	  BlocksMoved = 1
	  TreesTaken = 1
	  LinesTaken = LinesTaken + 1
	  return check()
	else
	  return park()
	end
  end
end

function park()
  Moved = 0
  turtle.turnLeft()
  if Lines == 1 then
	ParkLines = Lines * 6
  else
	ParkLines = (Lines * 6) + (6*(Lines - 1))
  end
  while Moved < ParkLines do
	fw()
	Moved = Moved + 1
  end
  turtle.turnRight()
  for a = 1, 13 do
	fw()
  end
  turtle.turnRight()
  fw()
  fw()
  turtle.turnLeft()
  fw()
  unload()
  turtle.turnLeft()
  turtle.turnLeft()
  fw()
  turtle.turnRight()
  fw()
  fw()
  turtle.turnLeft()
  fw()
  fw()
  fw()
end

function prepear()
  for x = 1,10 do --"use the for loop here"
	fw()
  end
end

while true do
  sapling()
  prepear()
  print("OH")
  check()
  print("Checked done")
  sleep(300)
  print("Sleep")
end