--Turtle Lumberjack--
 
shell.run(clear)
 
print("Before beginning make sure:\n ")
 
print("Saplings are in slot 13.")
print("Bonemeal for slot 14.")
print("Dirt for slot 15.")
print("And fuel for slot 16.\n")
 
print("What type of tree are you cutting?\n")
local treeType = io.read()
local sapling, bonemeal, dirt, fuel = 13, 14, 15, 16
local amount = 4
 
local function removeDirt(var1, var2)
  turtle.digDown()
  turtle.down()
    for i = 0, var1 do
      turtle.dig()
      turtle.forward()
    end
  turtle.turnRight()
    for i = 0, var2 do
      turtle.dig()
      turtle.forward()
    end
  turtle.turnRight()
  for i = 0, var1 do
    turtle.forward()
  end
  turtle.turnRight()
  for i = 0 var2 do
    turtle.forward()
  end
  turtle.turnRight()
  turtle.up()
end
 
local function digUp()
  while turtle.detectUp() do
    turtle.digUp()
    turtle.up()
    if turtle.detectUp() == false and treeType == "redwood" then
      if turtle.detect() then
        turtle.dig()
        turtle.forward()
      else
        turtle.forward()
      end
    else
    end
  end
end
 
local function digDown()
  while turtle.detectDown() do
    turtle.digDown()
    turtle.down()
    if turtle.detectDown() == false and treeType == "redwood" then
      turtle.forward()
      turtle.turnRight()
      turtle.forward()
      turtle.turnRight()
    else
    end
  end
end
 
local function plant()
  for i = 1, 1 do
    if treeType == "redwood" then
      turtle.select(sapling)
      turtle.forward(2)
      turtle.turnRight(2)
      turtle.place()
      turtle.back()
      turtle.place()
      turtle.turnLeft()
      turtle.forward()
      turtle.turnRight()
      turtle.forward()
      turtle.place()
      turtle.back()
      turtle.place()
      turtle.select(bonemeal)
      turtle.place()
      removeDirt(3, 2)
    else
      turtle.select(sapling)
      turtle.place()
      turtle.select(bonemeal)
      turtle.place()
    end
  end
end
 
local function cycle(a)
  turtle.select(13)
  if turtle.compare() ~= true then
    plant()
  else
  end
  while a ~= 0 do
    turtle.dig()
    turtle.forward()
    digUp()
    a = a - 1
    digDown()
    a = a - 1
  end
end
 
cycle(amount)