spiral1

local tArgs = {...}
local x=1
local y=1
local z=1

local diam = tonumber(tArgs[1])*2

function Place()
  while x>0 do
    turtle.select(1)
    turtle.placeDown()
    turtle.forward()
    x=x-1
  end
  x=z+1
  turtle.turnLeft()
  while y>0 do
    turtle.select(1)
    turtle.placeDown()
    turtle.forward()
    y=y-1
  end
  y=z+1
  z=z+1
  turtle.turnLeft()
end

for i = 1, diam do
  Place()
end