Ore mining turtle with enderchest

--Ore mining quarry with enderchest
--Made by: Cing
--also blocks off lava
--and sucks items out of a chest
--for more info visit: http://
local turns = 0
local size = 0
local layers = 0
local y = 0
local place = 0
local eNeeded = 0
local home = 0
local notItems = {
  "minecraft:dirt",
  "minecraft:stone",
  "minecraft:gravel",
  "minecraft:chest",
  "minecraft:flowing_lava"
	}
function compDown()
local succes, data = turtle.inspectDown()
if succes then
  if data.name == notItems[1] then
	elseif data.name == notItems[2] then
	  elseif data.name == notItems[3] then
		elseif data.name == notItems[4] then
		  for i = 1, 27 do
			turtle.suckDown()
		  end
		  turtle.digDown()
			elseif data.name == notItems[5] then
			  turtle.select(15)
			  turtle.placeDown()
			else
		  turtle.digDown()  
	  end
   end
end
function compUp()
local succes, data = turtle.inspectUp()
  if succes then
	if data.name == notItems[1] then
	  elseif data.name == notItems[2] then
		elseif data.name == notItems[3] then
		  elseif data.name == notItems[4] then
			for i = 1, 27 do
			  turtle.suckUp()
			end
			turtle.digUp()
			elseif data.name== notItems[5] then
			  turtle.select(15)
			  turtle.placeUp()
		  else
		  turtle.digUp()
	   end
	end
end
function compare()
  compDown()
  compUp()
end
function moveForward()
local succes, data = turtle.inspect()
  while not turtle.forward() do
	if succes then
	  if data.name == notItems[4] then
		for i = 1, 27 do
		  turtle.suck()
		end
		turtle.dig()
		else
		  turtle.dig()
	   end
	end
  end
end
function moveDown()
  while not turtle.down() do
	turtle.digDown()
  end
y = y-1
end
function moveUp()
  while not turtle.up() do
	turtle.digUp()
  end
y = y+1
end
function goHome()
  if layers == 1 and place == 0 then
  else
	repeat
	  moveUp()
	until y == home
  end
  if layers == 0 then
	if size%2 == 1 then
	  if turns == 0 then
		for i = 1, 2 do
		  turtle.turnLeft()
		  for i = 1, size-1 do
			moveForward()
		  end
		end
	  end
	else
	  if turns == 1 then
		turtle.turnRight()
		for i = 1, size-1 do
		  moveForward()
		end
	  end
	end
  elseif layers%2 == 1 then
	if size%2 == 1 then
	  for i = 1, 2 do
		turtle.turnLeft()
		for i = 1, size-1 do
		  moveForward()
		end
	  end
	else
	  turtle.turnRight()
	  for i = 1, size-1 do
		moveForward()
	  end
	end
  else
	turtle.turnLeft()
  end
end
function fuel()
  turtle.select(1)
  if turtle.getFuelLevel() < 50 then
	turtle.refuel()
  end
end
function dropItems()
turtle.turnRight()
turtle.turnRight()
local number = 2
  fuel()
  turtle.select(16)
  while not turtle.place() do
	turtle.dig()
  end
  for i = 1, 13 do
	turtle.select(number)
	turtle.drop()
	number = number+1
  end
  turtle.select(16)
  turtle.dig()
  turtle.select(1)
  turtle.turnRight()
  turtle.turnRight()
end
function checkItems()
  if turtle.getItemDetail(11) == false then
  else
	dropItems()
  end
end
function dig()
  fuel()
  compare()
  for i = 1, size-1 do
	moveForward()
	compare()
  end
end
function turnright()
  turtle.turnRight()
  moveForward()
  turtle.turnRight()
end
function turnleft()
  turtle.turnLeft()
  moveForward()
  turtle.turnLeft()
end
function nextLayer()
  for i = 1,3 do
	moveDown()
  end
  turtle.turnRight()
  turtle.turnRight()
end
function square()
local count = 1
  for i = 1, size do
	dig()
	if count ~= size then
	  if turns == 0 then
		turnright()
		turns = 1
	  else
		turnleft()
		turns = 0
	  end
	  count = count+1
	end
  end
  if turns == 0 then
	checkItems()
  end
end
function Layers()
  square()
  if layers > 1 then
	for i = 1, layers-1 do
	  nextLayer()
	  square()
	end
  end
end
function Bedrock()
  square()
  repeat
	if y == 3 then
	  moveDown()
	  turtle.turnRight()
	  turtle.turnRight()
	  square()
	else
	  nextLayer()
	  square()
	end
  until y < 3
end
function getInPlace()
  if place == 1 then
	for i = 1, 3 do
	  moveDown()
	end
  elseif place == 0 then
	moveForward()
  else
	print("Place must be 1 or 0")
	print("Please try again")
	sleep(3)
	os.reboot()
  end
end
function calcEnergy()
  if layers == 0 then
	eNeeded = ((size*size*(y/3))+50)
  else
	eNeeded = ((size*size*layers)+50)
  end
end
print("---------------------------------------")
print("Advanced ore mining quarry")
print("Made by: Cing")
print("---------------------------------------")
print("Please put first coal in slot 1...")
print("some filling blocks in slot 15...")
print("and a enderchest in slot 16.")
print("And don't forget to chunkload the area.")
os.pullEvent()
write("What is the YLevel: ")
y = tonumber(read())
write("What home level do you want: ")
home = tonumber(read())
print("Are you above or under ground?")
write("Type 1 for above and 0 for under: ")
place = tonumber(read())
write("What size do you want: ")
size = tonumber(read())
print("How many layers do you want?")
write("Or type 0 to go to bedrock: ")
layers = tonumber(read())
print(y)
calcEnergy()
repeat
  if eNeeded < turtle.getFuelLevel() then
  else
	turtle.refuel()
	print("Please put more coal in slot 1")
	os.pullEvent()
  end
until eNeeded < turtle.getFuelLevel()
getInPlace()
term.clear()
term.setCursorPos(1, 1)
print("Digging")
if layers == 0 then
  Bedrock()
  else
  Layers()
end
print("Done!!!")
goHome()
dropItems()