local width, height = ...

b_def = "minecraft:planks"
b_win = "minecraft:glass_pane"
b_spc = "minecraft:log"

function take(name)
	while true do
		item = turtle.getItemDetail()
		if item then
			if item.name == name then
				return true
			end
		end
		slot = 	turtle.getSelectedSlot() + 1
		if slot > 16 then slot = 0 end
		turtle.select(slot)
	end
end

function select_material()
	take(b_def)
end

function move_down()
	while not turtle.detectDown then
		turtle.down()
	end

function build_layer(width)
	turtle.up()
	for i = 1, 4 do
		for i = 0, width - 1 do
			turtle.forward()
			select_material()
			turtle.placeDown()
		end
		turtle.turnRight()
	end
end

function build_rectangle(width, height)
	for i = 1, height do
		build_layer(width)
	end
end

turtle.refuel()
build_rectangle(width, height)
move_down()