local tArgs = {...}
local branchesToMine = tonumber(tArgs[1])
local maximumMineableSlot = 15
local torchSlot = 16

if #tArgs < 1 then
	branchesToMine = 1
	print(" Defaulting to 1 branches to mine")
end

function fuel()
	while turtle.getFuelLevel() < 1000 do
		for i=1, 16 do
			turtle.select(i)
			turtle.refuel()
		end
		if turtle.getFuelLevel() < 1000 then
			write ("Please enter fuel manually")
			os.sleep(5)
		end
	end
end

function minebranch()
	for i = 1, 16 do
		fuel()
		turtle.dig()
		turtle.digUp()
		turtle.digDown()
		if i % 4 == 0 then
			turtle.select(torchSlot)
			turtle.placeDown()
			turtle.select(1)
		end
		turtle.turnLeft()
		turtle.dig()
		for i = 1, 2 do
			turtle.turnRight()
		end
		turtle.dig()
		turtle.turnLeft()
		turtle.dig()
		turtle.forward()
	end
end

function goBack()
	for i = 1, 2 do
		turtle.turnLeft()
	end

	for i = 1, 16 do
		fuel()
		while not turtle.forward() do
			turtle.dig()
		end
	end

	for i = 1, 2 do
		turtle.turnLeft()
	end
end

function nextBranch()
	turtle.turnRight()
	for i = 1, 5 do
		fuel()
		while not turtle.forward() do
			turtle.dig()
		end
	end
	turtle.turnLeft()
end


for i = 1, branchesToMine do
	minebranch()
	goBack()
	nextBranch()
end