Biome Extensions

Standard that modifies the vanilla biome definitions to use tags for placed features and carvers. This allows multiple data packs to add features to a vanilla biome and maintain compatibility.

Usage

1. Download or clone this repository
2. Copy and merge the data folder with your project, or use it to start a new project.
3. You SHOULD NOT make any changes to the minecraft/worldgen/biome files, otherwise you risk breaking compatibility.
4. You SHOULD NOT delete entries from the minecraft/tags/worldgen files, since another data pack using this standard would cause the entries to be re-added. To remove or disable a feature/carver you SHOULD overwrite it with an empty feature/carver.
5. You MAY add entries to the minecraft/tags/worldgen files to add a feature/carver to a biome.
6. You MAY add extra files to the minecraft/tags/worldgen folders, as indicated by the optional tag entries (eg. minecraft/tags/worldgen/placed_feature/vegetal_decoration/in_overworld.json).

Adding your own biome

1. Add your own biome to your custom namespace. To allow other data packs to add features, use one of the vanilla biome files as a template.
2. Add the corresponding tags for features and carvers to your own namespace (eg. mypack/tags/worldgen/placed_feature/vegetal_decoration/in_biome/mybiome.json).
3. Include the optional tag entry {"id": "#minecraft:vegetal_decoration/in_overworld", "required": false} at the start.
4. Add any number of vanilla or custom features afterwards.

Adding features to existing biomes

1. Add your feature to your custom namespace.
2. If you want to add the feature to a whole dimension create a tag minecraft/tags/worldgen/placed_feature/vegetal_decoration/in_overworld.json and add your feature's ID to it.
3. If you want to add the feature to one or more individual biomes, locate the corresponding files in minecraft/tags/worldgen/placed_feature and add your feature's ID to the bottom.

Credits

This standard came forward after much debate and feedback from the Minecraft Configs community.