local function _ensure_sql()
  if type(_G.Sql_con) == "function" and type(_G.rows) == "function" then
    return true
  end
  pcall(require, "Sql_con")
  if type(_G.Sql_con) == "function" then
    return true
  end
  pcall(dofile, "server_data/script/Sql_con.lua")
  if type(_G.Sql_con) == "function" then
    return true
  end
  pcall(dofile, "../server_data/script/Sql_con.lua")
  return type(_G.Sql_con) == "function"
end

_ensure_sql()

function Sand_castle(a, b, c)
  return 0
end

return {
  Sand_castle = Sand_castle,
}