chestSlot = 1;
posX = 0
posY = 0
posZ = 0
orientation = 0

function forward()
        repeat
        turtle.dig()
        until turtle.forward()
end

function up()
        repeat
        turtle.digUp()
        until turtle.up()
		posZ = posZ + 1
end

function down()
        repeat
        turtle.digDown()
        until turtle.down()
		posZ = posZ - 1
end

function turnRight()
	turtle.turnRight()
end

function turnLeft()
	turtle.turnLeft()
end

function deposit()

	turnRight()
	turnRight()

	repeat
		turtle.dig()
		turtle.select(chestSlot)
	until turtle.place()

	for i=1,16 do
		if(i~=chestSlot)then
			turtle.select(i)
			turtle.drop()
		end
	end

	turtle.select(chestSlot)
	turtle.dig()
	turnRight()
	turnRight()
	turtle.select(2)
end

function checkFull()
	local currentSlot = turtle.getSelectedSlot()
	turtle.select(13)
	if (turtle.getItemCount()>0) then
		deposit()
	else
	turtle.select(currentSlot)
	end
end

function dig()
	turtle.dig()
end

print "Enter Length"
        length = tonumber(read())
print "Enter Width"
        width = tonumber(read())
print "Enter height (multiple of 6)"
       height = tonumber(read())
print "Please place ender chest in slot 1. Press any key to start."
        os.pullEvent("key")



local i = 1

	up()
repeat

	turtle.dig()
	forward()
	turnRight()
	local j = 2
	repeat

		local k = 1
		repeat
			turtle.digUp()
			turtle.digDown()
			turtle.dig()
			forward()
			k = k + 1

		until k >= width
		turtle.digDown()
		checkFull()
		turnRight()
		turnRight()
		up()
		up()
		up()
		j = j + 3
		local k = 1
		repeat
			turtle.digUp()
			turtle.digDown()
			turtle.dig()
			forward()
			k = k + 1

		until k >= width
		turtle.digDown()
		checkFull()
		turnRight()
		turnRight()

		if(j>= height-1) then
			turtle.digUp()
		else
		up()
		up()
		up()
		j = j + 3
		end

	until j >= height - 1

	repeat
		down()
		down()
		down()
		j = j - 3
	until j <= 2
	turnLeft()
	i = i + 1
until i > length

	down()
	turnLeft()
	turnLeft()
	repeat
		forward()
		i = i - 1
	until i <= 1