/proc/is_level_reachable(z)
  return check_level_trait(z, REACHABLE)

/proc/is_station_level(z)
  return check_level_trait(z, STATION_LEVEL)

/proc/is_station_contact(z)
  return check_level_trait(z, STATION_CONTACT)

/proc/is_teleport_allowed(z)
  return !check_level_trait(z, BLOCK_TELEPORT)

/proc/is_admin_level(z)
  return check_level_trait(z, ADMIN_LEVEL)

/proc/is_away_level(z)
  return check_level_trait(z, AWAY_LEVEL)

/proc/is_mining_level(z)
  return check_level_trait(z, ORE_LEVEL)

/proc/is_ai_allowed(z)
  return check_level_trait(z, AI_OK)

/proc/level_blocks_magic(z)
  return check_level_trait(z, IMPEDES_MAGIC)

/proc/level_boosts_signal(z)
  return check_level_trait(z, BOOSTS_SIGNAL)

// Used for the nuke disk, or for checking if players survived through xenos
/proc/is_secure_level(z)
  var/secure = check_level_trait(z, STATION_LEVEL)
  if(!secure)
    // This is to allow further admin levels later, other than centcomm
    secure = (z == level_name_to_num(CENTCOMM))
  return secure

var/list/default_map_traits = MAP_TRANSITION_CONFIG
/proc/check_level_trait(z, trait)
  if(!z)
    return 0 // If you're nowhere, you have no traits
  var/list/trait_list
  if(space_manager.initialized)
    var/datum/space_level/S = space_manager.get_zlev(z)
    trait_list = S.flags
  else
    trait_list = default_map_traits[z]
    trait_list = trait_list["attributes"]
  return (trait in trait_list)

/proc/levels_by_trait(trait)
  var/list/result = list()
  for(var/A in space_manager.z_list)
    var/datum/space_level/S = space_manager.z_list[A]
    if(trait in S.flags)
      result |= S
  return result

/proc/level_name_to_num(name)
  var/datum/space_level/S = space_manager.get_zlev_by_name(name)
  return S.zpos