-- Kap's Lumberjack Turtle ver 1.0, 01/11/18
local tArgs = {...}
local runs = tonumber(tArgs[1])

local trees = 7
local treeRows = 4
local spacing = 1
local direction = true

local height = 1
local maxHeight = 5


function ChopTree()
	turtle.dig()
	turtle.forward()
	turtle.digDown()
	Plant()

	while turtle.detectUp() do
		if height >= maxHeight then break end
		turtle.digUp()
		turtle.up()
		height = height + 1
		os.sleep(1)
	end

	while not turtle.detectDown() do
		turtle.down()
		height = height - 1
	end
end


function Plant()
	turtle.select(2)
	turtle.placeDown()
end


function Return()
	direction = true
	turtle.turnLeft()
	for i=1, (treeRows + (spacing * 2)) do
		turtle.forward()
	end
	turtle.turnLeft()
	Offload()
end

function Offload()
	turtle.turnLeft()
	turtle.turnLeft()

	for i=3, 16 do
		turtle.select(i)
		turtle.drop()
	end

	turtle.turnLeft()
	Restock()
end

function Restock()
	turtle.select(2)
	turtle.suck(64 - turtle.getItemCount(2))
	turtle.turnLeft()
	GrabFuel()
end

function GrabFuel()
	if turtle.getItemCount(1) < 16 then
		turtle.select(1)
		turtle.suckUp()
	end
end

function Refuel()
	if turtle.getFuelLevel(1) < 400 then
		turtle.select(1)
		turtle.refuel(1)
	end
end


-- movement and execution
for x=1, runs do
	for i=1, treeRows do
		Refuel()
		for j=1, trees do
			if turtle.detect() and not turtle.detectDown() then
				ChopTree()
				turtle.dig()
				turtle.forward()
			else
				turtle.forward()
				Plant()
				turtle.dig()
				turtle.forward()
			end
		end
		if i == treeRows then break end
		if direction then
			turtle.turnLeft()
			turtle.dig()
			turtle.forward()
			turtle.dig()
			turtle.forward()
			turtle.turnLeft()
			direction = false
		else
			turtle.turnRight()
			turtle.dig()
			turtle.forward()
			turtle.dig()
			turtle.forward()
			turtle.turnRight()
			direction = true
		end
	end
	Return()
	os.sleep(120)
end