[
  {
    "type": "overmap_special",
    "id": "iso_office",
    "subtype": "mutable",
    "locations": [ "iso_nether" ],
    "city_distance": [ 0, -1 ],
    "city_sizes": [ 0, -1 ],
    "occurrences": [ 4, 4 ],
    "flags": [ "ISO_MAP" ],
    "check_for_locations": [
      [ [ 0, 0, 0 ], [ "iso_nether" ] ],
      [ [ 0, 0, -1 ], [ "iso_nether" ] ],
      [ [ 4, 0, -1 ], [ "iso_nether" ] ],
      [ [ 3, 0, -1 ], [ "iso_nether" ] ],
      [ [ 2, 0, -1 ], [ "iso_nether" ] ],
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      [ [ 0, 4, -1 ], [ "iso_nether" ] ],
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      [ [ 0, 2, -1 ], [ "iso_nether" ] ],
      [ [ 0, 1, -1 ], [ "iso_nether" ] ]
    ],
    "joins": [ "duct_to_surface", "duct_to_entrance", "office_to_office" ],
    "overmaps": {
      "surface": { "overmap": "nether_glass_impassable_north", "below": "duct_to_surface", "locations": [ "iso_nether" ] },
      "closing_chunk": {
        "overmap": "iso_office",
        "north": "office_to_office",
        "east": { "id": "office_to_office", "type": "available" },
        "south": { "id": "office_to_office", "type": "available" },
        "west": { "id": "office_to_office", "type": "available" }
      },
      "office": {
        "overmap": "iso_office",
        "north": { "id": "office_to_office", "alternatives": [ "office_to_office" ] },
        "east": { "id": "office_to_office", "alternatives": [ "office_to_office" ] },
        "south": { "id": "office_to_office", "alternatives": [ "office_to_office" ] },
        "west": { "id": "office_to_office", "alternatives": [ "office_to_office" ] }
      },
      "iso_elevator": {
        "overmap": "iso_elevator_office",
        "above": "duct_to_surface",
        "north": { "id": "office_to_office", "type": "available", "alternatives": [ "office_to_office" ] },
        "east": { "id": "office_to_office", "type": "available", "alternatives": [ "office_to_office" ] },
        "south": { "id": "office_to_office", "type": "available", "alternatives": [ "office_to_office" ] },
        "west": { "id": "office_to_office", "type": "available", "alternatives": [ "office_to_office" ] }
      },
      "iso_next_level_elevator": {
        "overmap": "iso_elevator_office_next",
        "north": { "id": "office_to_office", "type": "available", "alternatives": [ "office_to_office" ] },
        "east": { "id": "office_to_office", "type": "available", "alternatives": [ "office_to_office" ] },
        "south": { "id": "office_to_office", "type": "available", "alternatives": [ "office_to_office" ] },
        "west": { "id": "office_to_office", "type": "available", "alternatives": [ "office_to_office" ] }
      }
    },
    "root": "surface",
    "phases": [
      [
        {
          "name": "start_chunk",
          "chunk": [
            { "overmap": "iso_elevator", "pos": [ 0, 0, 0 ] },
            { "overmap": "office", "pos": [ 0, 1, 0 ] },
            { "overmap": "office", "pos": [ 1, 1, 0 ] },
            { "overmap": "office", "pos": [ 1, 0, 0 ] }
          ],
          "max": 1
        }
      ],
      [ { "overmap": "office", "max": 15 } ],
      [ { "overmap": "iso_next_level_elevator", "max": 2 } ],
      [ { "overmap": "closing_chunk", "weight": 1 } ]
    ]
  }
]
