feat: AHHHH IT WORKSSSS

note: it doesnt generate structures yet, but doesnt crash :3

Author: Samalando

fabric/src/main/resources/data/joy/worldgen/structure/bii_dome.json

@@ -0,0 +1,15 @@
+{
+  "type":"jigsaw",
+  "biomes": "minecraft:plains",
+  "step": "surface_structures",
+  "spawn_overrides": {},
+  "terrain_adaptation": "beard_thin",
+  "start_pool": "joy:bii_dome",
+  "size": 1,
+  "start_height": {
+    "absolute": 0
+  },
+  "project_start_to_heightmap": "WORLD_SURFACE_WG",
+  "max_distance_from_center": 80,
+  "use_expansion_hack": false
+}

fabric/src/main/resources/data/joy/worldgen/structure_set/bii_dome.json

@@ -0,0 +1,14 @@
+{
+  "structures": [
+    {
+      "structure": "joy:bii_dome",
+      "weight": 1
+    }
+    ],
+  "placement": {
+  "type": "minecraft:random_spread",
+    "spacing": 5,
+    "separation": 2,
+    "salt": 1545207409
+  }
+}

fabric/src/main/resources/data/joy/worldgen/template_pool/bii_dome.json

@@ -0,0 +1,14 @@
+{
+  "fallback": "minecraft:empty",
+  "elements": [
+    {
+      "weight": 1,
+      "element": {
+        "element_type": "minecraft:single_pool_element",
+        "location": "joy:dome_bii_plains",
+        "projection": "rigid",
+        "processors": "minecraft:empty"
+      }
+    }
+  ]
+}