{ "type": "minecraft:jigsaw", "biomes": "#cabin:has_structure/broken_windmill", "max_distance_from_center": 80, "project_start_to_heightmap": "WORLD_SURFACE_WG", "size": 1, "spawn_overrides": {}, "start_height": { "absolute": -7 }, "start_pool": "cabin:broken_windmill", "step": "surface_structures", "terrain_adaptation": "none", "use_expansion_hack": true }