{
  "type": "minecraft:jigsaw",
  "liquid_settings": "ignore_waterlogging",
  "start_pool": "irons_spellbooks:catacombs/catacombs_start_pool",
  "size": 7,
  "biomes": "#irons_spellbooks:has_structure/catacombs",
  "terrain_adaptation": "bury",
  "use_expansion_hack": false,
  //"project_start_to_heightmap": "WORLD_SURFACE_WG",
  "start_height": {
    "type": "minecraft:uniform",
    "min_inclusive": {
      "absolute": -40
    },
    "max_inclusive": {
      "absolute": 20
    }
  },
  // The generation step for when to generate the structure. there are 10 stages you can pick from!
  // This surface structure stage places the structure before plants and ores are generated
  // See GenerationStep.Feature enum for all the stages you can use and what order they are in
  "step": "underground_decoration",
  // Maximum distance away from center that pieces can spawn. Cannot be greater than 128
  "max_distance_from_center": 96,
  "spawn_overrides": {
    "monster": {
      "bounding_box": "piece",
      "spawns": [
        {
          "type": "irons_spellbooks:catacombs_zombie",
          "maxCount": 1,
          "minCount": 1,
          "weight": 10
        },
        {
          "type": "minecraft:skeleton",
          "maxCount": 1,
          "minCount": 1,
          "weight": 5
        },
        {
          "type": "irons_spellbooks:necromancer",
          "maxCount": 1,
          "minCount": 1,
          "weight": 2
        }
      ]
    }
  }
}