====== Fogwall IDs ======

Here is each fog wall object ID in Dark Souls, mapped to its corresponding FFX ID and a description of its location. Formatted as a Python dictionary for programmatic usage.

Fog walls are used as gates in boss arenas, to section off areas for multiplayer, and occasionally as one-off "checkpoints" for the player to walk through. There are also multiple unused fog wall objects in the game; the FFX IDs and sizes of these objects are unknown.

<code>
FOG_WALL_MODELS = {
    # Depths
    1400: (81000, "Gaping Dragon entrance"),
    1401: (81001, "Undead Burg entrance"),  # bottom of stairs after locked door
    1402: (81002, "Blighttown entrance"),
    1420: (81020, "Depths checkpoint"),  # before Channeler

    # Undead Burg / Parish
    1403: (81003, "Bell Gargoyles entrance"),
    1404: (81004, "Bell Gargoyles exit"),
    1405: (81005, "Taurus Demon entrance"),
    1406: (81006, "Taurus Demon exit"),
    1407: (81007, "Upper Burg exit to Firelink Shrine"),  # bottom of stairs
    1408: (81008, "Parish exit to Andre"),  # start of long walkway behind Parish
    1409: (81009, "Bridge exit to Taurus Demon"),  # opposite Basement door
    1410: (81010, "Parish elevator to Firelink Shrine"),  # blocks both elevators
    1411: (81011, "Upper Burg exit to Darkroot Basin"),  # behind Havel
    1412: (81012, "Bridge exit to Lower Burg"),  # Basement door
    1413: (81013, "Capra Demon entrance"),
    1414: (81014, "Lower Burg exit to Firelink Shrine"),  # near Female Undead Merchant
    1415: (81015, "Lower Burg exit to Bridge"),  # below Basement door
    1416: (81016, "Parish checkpoint"),  # to bridge above gate
    1417: (81017, "Lower Burg one-way gate"),  # to Upper Burg
    1418: (81018, "Upper Burg bonfire room lower entrance"),
    1419: (81019, "Upper Burg checkpoint"),  # before first Hellkite appearance
    1421: (81021, "Upper Burg bonfire room upper entrance"),  # just below bridge

    # Painted World
    1600: (81100, "Priscilla entrance"),
    1601: (81101, "Priscilla exit"),  # appears strangely unaligned
    1602: (-1, "<UNUSED>"),
    1603: (81103, "Painted World checkpoint"),  # bottom of tower to Phalanx courtyard
    1604: (81104, "Sewer exit to courtyard"),
    1605: (-1, "<UNUSED>"),

    # Darkroot Garden / Basin
    2900: (81200, "Sif entrance"),
    2901: (81201, "Garden exit to Parish"),  # behind Titanite Demon
    2902: (81202, "Basin exit to Upper Burg"),  # into Havel's tower
    2903: (81203, "Basin exit to Valley of Drakes"),  # entrance to bonfire tunnel
    2904: (81204, "Moonlight Butterfly entrance"),
    2905: (81205, "Moonlight Butterfly exit"),
    2906: (81206, "Darkroot Garden checkpoint"),  # entrance to area before Butterfly
    2907: (81207, "Bridge above Hydra"),  # ladder side of bridge
    2908: (81209, "Crest of Artorias door"),

    # Oolacile / Chasm of the Abyss
    2909: (81213, "Sanctuary Guardian entrance"),
    2910: (81214, "Sanctuary Guardian exit"),
    2911: (81210, "Manus entrance"),
    2912: (81218, "Chasm exit to Royal Wood"),  # bottom of elevator
    2913: (81215, "Sanctuary exit to Royal Wood"),  # before bridge
    2914: (81216, "Royal Wood exit to Chasm"),  # top of elevator
    2915: (81211, "Artorias entrance"),
    2916: (81212, "Artorias exit"),
    2917: (81217, "Battle of Stoicism exit to Township"),
    2918: (-1, "<UNUSED>"),
    2919: (81220, "Kalameet entrance"),
    2920: (81221, "Battle of Stoicism exit to Artorias"),  # immediately after Artorias exit

    # Catacombs
    3950: (-1, "<UNUSED>"),
    3951: (81301, "Catacombs exit to Firelink Shrine"),  # top of first ladder
    3952: (81302, "Catacombs checkpoint"),  # after first rotating bridge
    3953: (-1, "<UNUSED>"),
    3954: (81300, "Pinwheel entrance"),  # in rock tunnel before drop
    3955: (-1, "<UNUSED>"),

    # Tomb of the Giants
    3960: (-1, "<UNUSED>"),
    3961: (81310, "Tomb exit to Catacombs"),  # giant fog wall above Pinwheel coffin
    3962: (81311, "Tomb checkpoint"),  # shortly after Patches
    3963: (81312, "Tomb golden fog wall"),
    3964: (81315, "Nito entrance"),
    3965: (-1, "<UNUSED>"),

    # Great Hollow / Ash Lake
    3970: (81320, "Great Hollow exit to Blighttown"),  # before both illusory walls
    3971: (81321, "Ash Lake checkpoint"),  # in tunnel between Great Hollow and Ash Lake
    3972: (-1, "<UNUSED>"),
    3973: (-1, "<UNUSED>"),

    # Blighttown / Quelaag's Domain
    4950: (81400, "Quelaag entrance"),
    4951: (81401, "Quelaag exit"),
    4952: (81402, "Blighttown exit to Depths"),
    4953: (81403, "Blighttown exit to Valley of Drakes"),
    4954: (81404, "Blighttown exit to Great Hollow"),  # before both illusory walls
    4955: (-1, "<UNUSED>"),
    4956: (81406, "Blighttown checkpoint"),  # before last ladders down to swamp
    4957: (-1, "<UNUSED>"),
    4958: (-1, "<UNUSED>"),

    # Demon Ruins / Lost Izalith
    4960: (81410, "Demon Ruins golden fog wall"),
    4961: (81411, "Ceaseless Discharge entrance"),
    4962: (81412, "Demon Firesage entrance"),
    4963: (81413, "Demon Firesage exit"),
    4964: (81414, "Centipede Demon entrance"),
    4965: (81415, "Centipede Demon exit"),
    4966: (81416, "Demon Ruins exit to Quelaag's Domain"),  # just before first bonfire
    4967: (81417, "Demon Ruins elevator bottom"),  # on stairs to elevator
    4968: (81418, "Ceaseless lava field exit"),  # near first Kirk invasion
    4969: (81419, "Demon Firesage exit (multiplayer)"),
    4970: (81420, "Centipede Demon exit (multiplayer)"),
    4971: (81422, "Izalith shortcut gate"),
    4972: (81421, "Bed of Chaos entrance"),
    4973: (81423, "Arch before Ceaseless bridge"),

    # Sen's Fortress
    5150: (81500, "Iron Golem entrance"),
    5151: (81501, "Fortress exit to Parish"),  # start of bridge
    5152: (81502, "Fortress checkpoint 1"),  # after outdoor boulder ramp
    5153: (81503, "Fortress checkpoint 2"),  # to roof area
    5154: (-1, "<UNUSED>"),
    5155: (-1, "<UNUSED>"),

    # Anor Londo
    5860: (81510, "O&S entrance"),
    5861: (81511, "O&S exit (small)"),
    5862: (81512, "O&S exit (large)"),
    5863: (81513, "Corkscrew elevator bottom"),
    5864: (81514, "Anor Londo checkpoint 1"),  # from rafters to spinning tower
    5865: (81515, "Anor Londo checkpoint 2"),  # balcony after archers
    5866: (-1, "<UNUSED>"),
    5867: (81517, "Gwyndolin entrance"),
    5868: (81518, "Gwyndolin entrance in endless corridor"),
    5869: (81521, "Cathedral broken window"),  # to Dragonslayer Greatbow
    5870: (81519, "Cathedral to Giant Blacksmith"),
    5871: (81520, "Cathedral to bedroom area"),

    # New Londo Ruins
    6600: (-1, "<UNUSED>"),
    6601: (81601, "New Londo exit to Firelink Shrine"),  # bottom of elevator
    6602: (81602, "New Londo exit to Valley of Drakes"),  # locked gate
    6603: (81603, "New Londo giant gate"),
    6604: (81604, "New Londo checkpoint 1"),  # above broken cathedral
    6605: (81605, "New Londo checkpoint 2"),  # entrance to broken cathedral ground floor
    6606: (81608, "Four Kings entrance"),
    6607: (-1, "<UNUSED>"),

    # Duke's Archives
    7900: (81700, "Seath cave entrance"),
    7901: (81701, "Seath tower entrance"),
    7902: (81702, "Archives first elevator top"),  # top of first elevator
    7903: (-1, "<UNUSED>"),
    7904: (-1, "<UNUSED>"),
    7905: (-1, "<UNUSED>"),
    7906: (81706, "Archives checkpoint"),  # from wooden room to garden area
    7907: (81707, "Archives golden fog"),
    7908: (81708, "Archives tower elevator top"),  # bottom of long passage to Seath

    # Kiln of the First Flame
    8050: (81800, "Gwyn entrance"),
    8051: (81801, "Ghost staircase bottom"),

    # Undead Asylum
    8950: (81802, "Asylum Demon top entrance"),
    8951: (-1, "<UNUSED>"),
    8952: (81805, "Asylum checkpoint"),  # before Oscar
    8953: (81806, "Stray Demon exit"),  # in front of ladder
}
</code>