term.clear()
term.setCursorPos(1,1)
print("+-------------------------------------+")
print("|  Please place fuel in the lower-    |")
print("|  right slot.                        |")
print("|  Place building materials in the    |")
print("|  remaining slots.                   |")
print("+-------------------------------------+")
sleep(1)
print("How big of a square do you want? ")

sqrSize = read()

print("How tall (On the inside) do you want it? ")

sqrTall = read()

function plcColumn()
  for i = 1, sqrSize do
    turtle.forward()
    turtle.placeDown()
  end
end

--Even Column Placement

function aa()
    turtle.placeDown()
    plcColumn()
    turtle.turnLeft()
    turtle.forward()
    turtle.turnLeft()
end

--Odd Column Placement

function ab()
    turtle.placeDown()
    plcColumn()
    turtle.turnRight()
    turtle.forward()
    turtle.turnRight()
end

if sqrSize %2 == 0 then
  isEven = true
else
  isEven = false
end

--print(isEven)
--Test for isEven ^


function fltSqr()
  if isEven == true then
    for i = 1, sqrSize/2 do
      aa()
      ab()
    end
  else
    for i = 1, sqrSize/2 do
      aa()
      ab()
    end
    aa()
  end
end

function bldWall()
  for i = 1,4 do
    plcColumn()
    turtle.turnLeft()
    turtle.up()
  end
end

slotNum = 1

itemCount = turtle.getItemCount(slotNum)

print(slotNum)
print(itemCount)

while true do
  for i = 1, 15 do
      if itemCount == 0 then
        slotNum = slotNum + 1
        turtle.select(slotNum)
      end
  end
end

fltSqr()
matSlot()
turtle.up()
for i = 1, sqrTall do
  bldWall()
  matSlot()
end
fltSqr()
matSlot()