[
  {
    "type": "mapgen",
    "update_mapgen_id": "fbmc_fire_lookout_tower_construction_shack_0",
    "method": "json",
    "object": {
      "place_nested": [
        { "chunks": [ "fbmc_construction_wall_vertical" ], "x": 7, "y": 5 },
        { "chunks": [ "fbmc_construction_shack_south" ], "x": 8, "y": 5 }
      ]
    }
  },
  {
    "type": "mapgen",
    "update_mapgen_id": "fbmc_fire_lookout_tower_construction_shack_1",
    "method": "json",
    "object": {
      "place_nested": [
        { "chunks": [ "fbmc_construction_wall_vertical" ], "x": 9, "y": 14 },
        { "chunks": [ "fbmc_construction_shack_north" ], "x": 10, "y": 14 }
      ]
    }
  }
]
