adding custom world presets

wiki/misc/worldtypes.md

@@ -0,0 +1,41 @@
+---
+title: Adding a Custom World Preset
+---
+
+# Adding custom world presets
+To add your custom world preset(s), you have to navigate to your mod/datapack's `resources/data` folder.
+
+Make a file titled `example_mod_preset.json` in `../example_mod/worldgen/world_preset` and populate it with the following:
+```json
+{
+  "dimensions": {
+    "minecraft:overworld": {
+      "type": "minecraft:overworld",
+      "generator": {
+        "type": "minecraft:noise",
+        "biome_source": {
+          "type": "minecraft:multi_noise",
+          "preset": "minecraft:overworld"
+        },
+        "settings": "example_mod:example_mod_noise"
+      }
+    }
+  }
+}
+```
+- `"dimensions`: The dimension(s) in your custom world preset. It is recommended to have at least `"minecraft:overworld"`, `"minecraft:nether"`, and `"minecraft:the_end"`.
+- `"minecraft:overworld"`: This is required, otherwise your world preset will not work.
+- `"type"`: The namespace ID for the dimension you're using.
+- `"generator"`: Various settings to tell Minecraft how to generate the terrain found in this dimension.
+- `"settings"`: What perlin noise to use for worldgen in this dimension.
+
+
+Make a file titled `normal.json` in `../minecraft/tags/worldgen/world_preset` and populate it with the following:
+This will tell Minecraft to show your world preset when you go to create a new world.
+```json
+{
+  "values": [
+    "wonders:wonders"
+  ]
+}
+```