So I was wondering, how do I create a custom FillerBlockType for OreFeautureConfig so that I can generate this into the biomes. I am wanting it to be endstone if that helps. This is my code so far:

public static void generateOre() {
        for (Biome biome : ForgeRegistries.BIOMES) {
            if (biome == Biomes.END_BARRENS || biome == Biomes.THE_END || biome == Biomes.END_HIGHLANDS ||
                    biome == Biomes.END_MIDLANDS || biome == Biomes.SMALL_END_ISLANDS) {
                ConfiguredPlacement customConfig = Placement.COUNT_RANGE.configure(new CountRangeConfig(20, 5, 5, 25));
                biome.addFeature(GenerationStage.Decoration.UNDERGROUND_ORES, Feature.ORE.withConfiguration(new OreFeatureConfig(OreFeatureConfig.FillerBlockType.NATURAL_STONE,
                        ModBlocks.END_ONYX_ORE.getDefaultState(), 10)).withPlacement(customConfig));
            }
        }
    }

 

Have you looked at the FillerBlockType class, or tried anything?

2 second check shows it's an extensible enum, so should be easy to add a new one, pretty sure I saw a create method in there.

 

You should investigate and try stuff! That's half the fun of programming

If you run into errors, come back, post code (pref a github repo of the project, makes it easier to find bugs/see the big picture), and the full debug.log