public class FeatrueInit {
    public static void addOres(final BiomeLoadingEvent event) {
        addOre(event, OreFeatureConfig.FillerBlockType.NATURAL_STONE,
                LegendBlock.getLegendBlock.defaultBlockState(), 4, 0, 60, 20);
    }

    public static void addOre(final BiomeLoadingEvent event, RuleTest rule, BlockState state, int veinSize,
                              int minHeight, int maxHeight, int amount) {
        event.getGeneration().addFeature(GenerationStage.Decoration.UNDERGROUND_ORES,
                Feature.ORE.configured(new OreFeatureConfig(rule, state, veinSize))
                        .decorated(Placement.RANGE.configured(new TopSolidRangeConfig(minHeight, 0, maxHeight)))
                        .squared().count(amount));
    }
}







@Mod.EventBusSubscriber(modid = Utils.MOD_ID,bus = Mod.EventBusSubscriber.Bus.MOD)
public class Registry {
    @SubscribeEvent
    public static void onPotionRegistration(RegistryEvent.Register<Effect> event) {
        event.getRegistry().registerAll(BLInstinct.getBLInstinct().addAttributeModifier(Attributes.MAX_HEALTH,"7107DE5E-7CE8-4030-940E-514C1F1608901",-4.0f, AttributeModifier.Operation.ADDITION)
                .addAttributeModifier(Attributes.ATTACK_DAMAGE,"7107DE5E-7CE8-4030-940E-514C1F1608901",5.0f, AttributeModifier.Operation.ADDITION)
                .setRegistryName(Utils.MOD_ID, "bl_instinct"));
    }
    @SubscribeEvent
    public static void onBlockRegistration(RegistryEvent.Register<Block> event){
        event.getRegistry().registerAll(LegendBlock.getLegendBlock.setRegistryName(Utils.MOD_ID, "legend_block"));
    }
    @SubscribeEvent
    public static void onItemRegistration(RegistryEvent.Register<Item> event){
        event.getRegistry().registerAll(new BlockItem(LegendBlock.getLegendBlock,new Item.Properties().tab(ModGroup.legendGroup)).setRegistryName(Utils.MOD_ID, "legend_block"));
    }
    public Registry() {
        IEventBus bus = FMLJavaModLoadingContext.get().getModEventBus();
        MinecraftForge.EVENT_BUS.addListener(EventPriority.HIGH, FeatrueInit::addOres);
        MinecraftForge.EVENT_BUS.register(this);
    }
}

 

How to make ore generate when I have this class?

public class FeatureInit {
    public static void addOres(final BiomeLoadingEvent event) {
        addOre(event, OreFeatureConfig.FillerBlockType.NATURAL_STONE,
                LegendBlock.getLegendBlock.defaultBlockState(), 2, 5, 11, 20);
    }

    public static void addOre(final BiomeLoadingEvent event, RuleTest rule, BlockState state, int veinSize,
                              int minHeight, int maxHeight, int amount) {
        event.getGeneration().addFeature(GenerationStage.Decoration.UNDERGROUND_ORES,
                Feature.ORE.configured(new OreFeatureConfig(rule, state, veinSize))
                        .decorated(Placement.RANGE.configured(new TopSolidRangeConfig(minHeight, 0, maxHeight)))
                        .squared().count(amount));
    }
}

 

How to write?

How to write?

https://mcforge.readthedocs.io/en/latest/events/intro/#automatically-registering-static-event-handlers

is it @SubscribeEvent?

add @SubscribeEvent also no ore generate

post update code

public class FeatureInit {
    @SubscribeEvent
    public static void addOres(final BiomeLoadingEvent event) {
        addOre(event, OreFeatureConfig.FillerBlockType.NATURAL_STONE,
                LegendBlock.getLegendBlock.defaultBlockState(), 2, 5, 11, 1);
    }

    public static void addOre(final BiomeLoadingEvent event, RuleTest rule, BlockState state, int veinSize,
                              int minHeight, int maxHeight, int amount) {
        event.getGeneration().addFeature(GenerationStage.Decoration.UNDERGROUND_ORES,
                Feature.ORE.configured(new OreFeatureConfig(rule, state, veinSize))
                        .decorated(Placement.RANGE.configured(new TopSolidRangeConfig(minHeight, 0, maxHeight)))
                        .squared().count(amount));
    }
}

 

did you read the doc?
since you forgot the @Mod.EventBusSubscriber annotation

add @Mod.EventBusSubscriber() no ore generate

add @Mod.EventBusSubscriber(modid = Utils.MOD_ID,bus = Mod.EventBusSubscriber.Bus.MOD) erro;

Has been solved  Thanks