walldebug.lua

function selectNextSlot()
  for i=1,16 do
    local slot = (turtle.getSelectedSlot() % 16) + 1
    turtle.select(slot)
    if turtle.getItemCount() > 0 then return true end
  end
  return false
end

function placeWallBlock()
  while not turtle.placeDown() do
    if turtle.getItemCount() == 0 and not selectNextSlot() then
      error("Out of blocks while placing down for walls")
    end
    sleep(0.1)
  end
end

function forwardSafe()
  while not turtle.forward() do
    turtle.dig()
    sleep(0.1)
  end
end

function upSafe()
  while not turtle.up() do
    turtle.digUp()
    sleep(0.1)
  end
end

function downSafe()
  while not turtle.down() do
    turtle.digDown()
    sleep(0.1)
  end
end

-- === WALL BUILD TEST (FIXED) ===
function testWalls()
  local length, width, height = 3, 3, 3
  local wallHeight = height - 2
  if wallHeight < 1 then return end

  print("Going up to layer 2...")
  upSafe()

  for h = 1, wallHeight do
    print("Building wall layer "..h)
    for side = 1, 4 do
      local distance = (side % 2 == 1) and length or width
      for i = 1, distance do
        placeWallBlock()
        if i < distance then forwardSafe() end
      end
      turtle.turnRight()
    end
    if h < wallHeight then upSafe() end
  end

  print("Returning to ground...")
  for i = 1, wallHeight do downSafe() end
end

-- Run test
testWalls()