local data
local fuelSlot = 1
local turnCount = 0
local treeHeight = 1
local fuelLevel = turtle.getFuelLevel()
local woodSlot = 2
local rootSlot = 3
local barkSlot = 4
local slotCount = 0
local moveHeight = 0
local moveCount = 0

while treeHeight < 250 do
    if fuelLevel < turtle.getFuelLimit() then
        turtle.turnLeft()
        while fuelLevel < turtle.getFuelLimit() do
            turtle.select(fuelSlot)
            slotCount = turtle.getItemCount()
            turtle.suck(math.floor(64-slotCount))
            turtle.refuel()
            fuelLevel = turtle.getFuelLevel()
        end
    end
    turtle.suck(math.floor(64-slotCount))
    turtle.select(woodSlot)
    if turtle.getItemCount() == 0 then
        print('Please insert wood into slot 2')
        treeHeight = 250
    end
    if turtle.compare() == true then
        turtle.dig()
        turtle.forward()
        moveCount = 0
        moveHeight = 0
    elseif turtle.compare() == false then
        if moveCount < 10 then
            turtle.select(rootSlot)
            if turtle.getItemCount() == 0 then
                print('Please insert roots or wood into slot 3')
                treeHeight = 250
            end
            if turtle.compare() == true then
                turtle.dig()
                turtle.forward()
                moveCount = 0
                moveHeight = 0
            elseif turtle.compare() == false then
                turtle.select(barkSlot)
                if turtle.getItemCount() == 0 then
                    print('Please insert roots, wood or bark into slot 4')
                    treeHeight = 250
                end
                if turtle.compare() == true then
                    turtle.dig()
                    turtle.forward()
                    moveCount = 0
                    moveHeight = 0
                elseif turtle.compare() == false then
                    if turnCount < 4 then
                        turtle.turnRight()
                        turnCount = turnCount + 1
                    elseif moveCount == 10 then
                        if turtle.up() then
                            if moveHeight == 5 then
                                treeHeight = 250
                            else
                                turtle.turnRight()
                                turtle.turnRight()
                                turnCount = 0
                                treeHeight = treeHeight + 1
                                moveHeight = moveHeight + 1
                            end
                        else
                            turtle.digUp()
                        end
                    else
                        turtle.forward()
                        moveCount = moveCount + 1
                    end
                end
            end
        else
            turtle.digUp()
        end
    end
end