lua turtle tree

left = function()
    return turtle.turnLeft()
end

right = function()
    return turtle.turnRight()
end

up = function()
    return turtle.up()
end

down = function()
    return turtle.down()
end

back = function()
    return turtle.back()
end

go = function()
    return turtle.forward()
end

fuel = function()
    return turtle.getFuelLevel()
end

selectId = function(id)
    return turtle.select(id)
end

countId = function(id)
    return turtle.getItemCount(id)
end

moveId = function(id, nb)
    return turtle.transferTo(id, nb)
end

-- --------------------------------------

sNameWood = ""
sNameSappling = ""


-- --------------------------------------

function testFuel()

    if(fuel() < 50)then
		local stickSlot = isThereSticks()
		if(stickSlot)then
			selectId(stickSlot)
			turtle.refuel(countId(stickSlot))
			testFuel()
		else
			selectId(1)
			turtle.refuel(1)
		end
    end
end

function isThereSticks()
	local continue = true
	local slot = 1
	while continue do
		if(countId(slot) > 0)then
			if(getName(slot) == "minecraft:stick") then
				return slot
			end
		end

		slot = slot + 1
		if(slot > 16)then
			continue = false
		end
	end
	return false
end



function init()
    if(countId(1)==0) then
        print('Besoin du block a couper en slot 1')
        return false
    end
    if(turtle.detectDown()==false)then
        print('Besoin d\'coffre en desous de ma possition')
        return false
    end
    if(countId(16)==0) then
        print('Besoin de slapping en slot 16 (Le dernier)')
        return false
    end

	sNameWood = getName(1)
	sNameSappling = getName(16)

    return true
end

function getName(s)
	local tab = turtle.getItemDetail(s)
	return tab.name
end


function coupeArbre()

	selectId(1)

	turtle.dig()
	go()

	while turtle.compareUp() do
		turtle.digUp()
		up()
	end
	while turtle.detectDown() == false do
		down()
	end

	back()
	selectId(16)
	turtle.place()


	testFuel()
	optiInv()

end

function optiInv()
	local continue = true
	local slot = 1
	while continue do
		if(slot == 1)then
			if (countId(slot)>10) then
				selectId(slot)
				turtle.dropDown(countId(slot) - 10)
			end
		elseif(slot == 16)then
			if (countId(slot)>10) then
				selectId(slot)
				turtle.dropDown(countId(slot) - 10)
			end
		else
			if (countId(slot)>0) then
				selectId(slot)
				if(getName(slot) == sNameSappling)then
					turtle.transferTo(16, countId(slot))
				else
					turtle.dropDown(countId(slot))
				end
			end
		end
		slot = slot + 1
		if(slot > 16)then
			continue = false
		end
	end
end


stop=false
if(init()==false) then
    stop=true
end
while(stop==false)do

    selectId(1)
    if(turtle.compare()==true)then
        coupeArbre()
	else
		turtle.suck()
		turtle.suckUp()
    end
    sleep(5)

end

print('end')