test strip mine script

minetest.lua

-- test strip mine script
os.loadAPI("path")

local DEFAULT_HEIGHT = 5

function isOverBedrock()
  if turtle.detectDown() then
    local itemName = turtle.inspectDown()
    local i = string.find(itemName, ":")
    itemName = string.sub(itemName, i + 1, string.len(itemName))
    return itemName == "bedrock"
  end
  return false
end

function sinkshaft(height)
  local overBedrock = isOverBedrock()
  while not overBedrock do
    path.digDown()
  end
  height = height or DEFAULT_HEIGHT
  for i=0,height do
    path.digUp()
  end
end