Lumberjack

--2x2 lumberjack program (Original program by AaronDM, Heavily edited by ZeroBurn)
--Chops down 2x2 trees such as Redwood or Fir and deposits them in a nearby chest
--(currently in extra special mode for my tree chopping build)

local isGrown = false

local tArgs = { ... }

function ascend()
 for i=1, 4 do
  turtle.up()
 end --for
end --ascend()

function descend()
 for i=1, 4 do
  turtle.down()
 end --for
end --descend()

--Basic fuel check function
function checkFuel()
  if turtle.getFuelLevel() < 100 then
    repeat
   	turtle.select(16)
	turtle.refuel(2)
	turtle.select(1)
    until turtle.getFuelLevel() >= 100
  end --if
end --checkFuel()

--Plants 4 Redwood saplings in a 2x2
function plantTree()
	print("Planting Tree")
	turtle.select(15)
	turtle.forward()
	turtle.place()
	turtle.back()
	turtle.place()
	turtle.turnRight()
	turtle.forward()
	turtle.turnLeft()
	turtle.forward()
	turtle.place()
	turtle.back()
	turtle.place()
	turtle.turnLeft()
	turtle.forward()
	turtle.turnRight()
	isGrown = false
end --plantTree()

--Uses Bonemeal to grow tree. (Only runs if there is Bonemeal in 13)
function growTree()
 turtle.select(13)
 turtle.place()
end --growTree()

--Alternate checking for if the tree has grown. (If there are no saplings in 14)
function altCheckTree()
	turtle.up()
 isGrown = not turtle.forward()
 if isGrown == false then
  repeat
	  turtle.back()
	  turtle.down()
   sleep(30)
   turtle.up()
   isGrown = turtle.foward()
  until isGrown == true
 end --if
	turtle.down()
end --growTree()

function checkTree()
 if turtle.getItemCount(13) >= 1 then
  growTree()
 end
 if turtle.getItemCount(14) >= 1 then
  turtle.select(14)
  isGrown = not turtle.compare()
  print("Is Grown: "..tostring(isGrown))
 else
  altCheckTree()
 end --if
end --checkTree()

--Cuts down the Redwood. Up the left side, then down the right side.
function cutTree()
	print("Chopping Down Tree")
	turtle.select(1)
	turtle.dig()
	sleep(0.25)
	turtle.forward()
	turtle.dig()
  local height = 0
  if turtle.detectUp() == true then
    repeat
	turtle.dig()
	turtle.digUp()
 turtle.up()
	height = height + 1
    until turtle.detectUp() == false
end --if
	checkFuel()
	turtle.turnRight()
  if turtle.detect() == true then
	turtle.dig()
end --if
	turtle.forward()
	turtle.turnLeft()
  if turtle.detectDown() == true then
    repeat
	turtle.dig()
	turtle.digDown()
 turtle.down()
	height = height - 1
    until height <= 0
end --if
	turtle.dig()
end --cutTree()

--Deposits the first 7 slots in a chest behind the turtle.
function dropOff()
 --local distance = 0
 checkFuel()
 turtle.turnLeft()
 turtle.forward()
 turtle.turnLeft()
 turtle.forward()
 --while turtle.forward() do
 -- distance = distance + 1
 --end --while
 for i=1, 8 do
  turtle.select(i)
  turtle.drop()
 end
 turtle.select(1)
 turtle.turnLeft()
 turtle.turnLeft()
 --distance = distance - 1
 --while distance > 0 do
 -- turtle.forward()
 -- distance = distance - 1
 --end --while
 checkFuel()
end --dropOff()

function checkInventory()
 return turtle.getItemCount(15) >= 4 and turtle.getItemCount(16) >= 2
end --checkInventory()

function getInventory()
 turtle.select(14)
 while turtle.getItemCount(14) < 64 do
  turtle.suck()
 end --while
 turtle.transferTo(15, 4)
 turtle.transferTo(1, 59)
 turtle.select(1)
 turtle.drop()
 turtle.turnRight()
 if turtle.getItemCount(16) == 0 then
  turtle.select(16)
  turtle.suck()
 end --if
 turtle.turnLeft()
end --getInventory()

--Main Script

term.clear()
print("Please confirm inventory.")
print("Slot 13 = Bonemeal [Optional]")
print("Slot 14 = Test Sapling [Optional; Only need one]")
print("Slot 15 = Planting Saplings [Minimum 4]")
print("Slot 16 = Fuel [Minimum 2]")
if #tArgs < 1 then
 print("Run how many times?")
 times = tonumber(read())
else
 times = tonumber(tArgs[1])
 print("Running "..times.." times")
end
if times == 0 then
  cutTree()
  checkFuel()
  return true
end
for i=1, times do
	getInventory()
    if not checkInventory() then
	term.clear()
	write("Please resupply.")
	return
    end
	checkFuel()
	ascend()
	if not turtle.detect() then
	 plantTree()
	else
	 print("Skipping Planting Tree")
	end
	if isGrown == false then
	 repeat
	  print("Is Grown: "..tostring(isGrown))
	  checkTree()
	  sleep(15)
	 until isGrown == true
	end
	checkFuel()
	cutTree()
	checkFuel()
	dropOff()
	descend()
end
print("Complete")
return