[
  {
    "type": "mapgen",
    "method": "json",
    "nested_mapgen_id": "NPC_lighthouse_man_spawn",
    "object": { "mapgensize": [ 1, 1 ], "place_npcs": [ { "class": "NPC_lighthouse_man", "x": 0, "y": 0 } ] }
  }
]
