I'm looking to override the vanilla ore generation strategy. I've been digging through all of the forge/minecraft source code, and scoured github looking for a solution, but I'm unable to find one.

I saw there is an ORE feature that is used to add all of the ores to the different biomes

In Feature.java
public static final Feature<OreFeatureConfig> ORE = register("ore", new OreFeature(OreFeatureConfig::deserialize));
  
In DefaultBiomeFeatures.java
     public static void addStoneVariants(Biome biomeIn) {
      biomeIn.addFeature(GenerationStage.Decoration.UNDERGROUND_ORES, Feature.ORE.func_225566_b_(new OreFeatureConfig(OreFeatureConfig.FillerBlockType.NATURAL_STONE, field_226786_au_, 33)).func_227228_a_(Placement.COUNT_RANGE.func_227446_a_(new CountRangeConfig(10, 0, 0, 256))));
... etc for other ore types
   }

 

The default OreFeature.java that gets registered has a place method and a giant formula. I'm assuming this is how it ends up generating the ore.

At the end of the formula it ends up calling

 worldIn.setBlockState(blockpos$mutable, config.state, 2);

 

So I thought I would go ahead and create my own CustomOreFeature which extends OreFeature (I just copied the exact formula from the original OreFeature), then register it

 private static final DeferredRegister<Feature<?>> FEATURES = new DeferredRegister<>(ForgeRegistries.FEATURES, "minecraft");

    public ExampleMod() {
        IEventBus modEventBus = FMLJavaModLoadingContext.get().getModEventBus();

        FEATURES.register("ore", () -> new CustomOreFeature(OreFeatureConfig::deserialize));
        FEATURES.register(modEventBus);
    }

 

When i start up the client it says that is overrided the original ORE feature, which is good.

[21:49:06] [Render thread/INFO] [ne.mi.re.GameData/]: Potentially Dangerous alternative prefix `minecraft` for name `ore`, expected `examplemod`. This could be a intended override, but in most cases indicates a broken mod.
[21:49:06] [Render thread/DEBUG] [ne.mi.re.ForgeRegistry/REGISTRIES]: Registry Feature Override: minecraft:ore net.minecraft.world.gen.feature.OreFeature@57ac2910 -> com.example.examplemod.CustomOreFeature@67c1fc9b

 

However, no matter what i change in my CustomOreFeature class, it doesn't seems to affect the default ore generation (Altering the formula i copied, or just removing the formula entirely).

 

I'm brand new to modding minecraft, so any help or direction is greatly appreciated.

 

Thanks in advance!

CrueltE

Have fun:

https://github.com/Draco18s/ReasonableRealism/blob/1.14.4/src/main/java/com/draco18s/harderores/HarderOres.java#L205-L241

Thanks so much for the quick reply! This does indeed look like quite the amount of fun haha. Will post back if I can get my idea working.

 

Thanks again!