Hello. I want my ore to generate on the clay of rivers and lakes so I have try the following:
 

public class ModOreGen {
    public static void generateOre() {
        for (Biome biome : ForgeRegistries.BIOMES) {
            ConfiguredPlacement config = Placement.COUNT_RANGE.configure(new CountRangeConfig(30, 0, 0, 200));
            biome.addFeature(GenerationStage.Decoration.UNDERGROUND_ORES, Feature.ORE.withConfiguration(new OreFeatureConfig(OreFeatureConfig.FillerBlockType.create("CLAY", "clay", new BlockMatcher(Blocks.CLAY)), ModBlocks.EMBER_CLAY.get().getDefaultState(), 2)).withPlacement(config));
        }
    }
}

That I call in the main class as follows:
 

    private void setup(final FMLCommonSetupEvent event) {
        DeferredWorkQueue.runLater(ModOreGen::generateOre);
    }

But it doesn't seem to work.
I was hopping someone can tell me how to make this work. Thanks in advance! 😃
 

 

My full main just in case:
 

package mod.edelmeyder.dharma;

import mod.edelmeyder.dharma.init.ModBlocks;
import mod.edelmeyder.dharma.init.ModItemGroups;
import mod.edelmeyder.dharma.init.ModItems;
import mod.edelmeyder.dharma.world.gen.ModOreGen;
import net.minecraft.item.BlockItem;
import net.minecraft.item.Item;
import net.minecraftforge.event.RegistryEvent;
import net.minecraftforge.eventbus.api.IEventBus;
import net.minecraftforge.eventbus.api.SubscribeEvent;
import net.minecraftforge.fml.DeferredWorkQueue;
import net.minecraftforge.fml.RegistryObject;
import net.minecraftforge.fml.common.Mod;
import net.minecraftforge.fml.common.Mod.EventBusSubscriber;
import net.minecraftforge.fml.event.lifecycle.FMLCommonSetupEvent;
import net.minecraftforge.fml.event.lifecycle.FMLLoadCompleteEvent;
import net.minecraftforge.fml.javafmlmod.FMLJavaModLoadingContext;
import net.minecraftforge.registries.IForgeRegistry;
import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;


@Mod(Dharma.MODID)
@EventBusSubscriber(modid = Dharma.MODID, bus = EventBusSubscriber.Bus.MOD)
public class Dharma {
    public static final String MODID = "dharma";

    public static final Logger LOGGER = LogManager.getLogger();
    public Dharma() {
        LOGGER.debug("Namaste from Dharma");
        final IEventBus eventBus = FMLJavaModLoadingContext.get().getModEventBus();
        eventBus.addListener(this::setup);

        ModItems.ITEMS.register(eventBus);
        ModBlocks.BLOCKS.register(eventBus);

    }

    @SubscribeEvent
    public static void onRegisterItems(final RegistryEvent.Register<Item> event) {
        final IForgeRegistry<Item> registry = event.getRegistry();

        ModBlocks.BLOCKS.getEntries().stream().map(RegistryObject::get).forEach(block -> {
            final Item.Properties properties = new Item.Properties().group(ModItemGroups.DHARMA);
            final BlockItem blockItem = new BlockItem(block, properties);
            blockItem.setRegistryName(block.getRegistryName());
            registry.register(blockItem);
        });
    }

    private void setup(final FMLCommonSetupEvent event) {
        DeferredWorkQueue.runLater(ModOreGen::generateOre);
    }
}

 

Edited August 18, 20205 yr by Edelmeyder

try using the Placement#COUNT_TOP_SOLID and set a high frequency..try and tweak the values to your liking

10 hours ago, Beethoven92 said:

try using the Placement#COUNT_TOP_SOLID and set a high frequency..try and tweak the values to your liking

Like this?
 

public class ModOreGen {
    public static void generateOre() {
        for (Biome biome : ForgeRegistries.BIOMES) {
            ConfiguredPlacement config = Placement.COUNT_TOP_SOLID.configure(new FrequencyConfig(100));
            biome.addFeature(GenerationStage.Decoration.UNDERGROUND_ORES, Feature.ORE.withConfiguration(new OreFeatureConfig(OreFeatureConfig.FillerBlockType.create("CLAY", "clay", new BlockMatcher(Blocks.CLAY)), ModBlocks.EMBER_CLAY.get().getDefaultState(), 2)).withPlacement(config));
            Dharma.LOGGER.debug(biome.getDisplayName().toString() + "added ember clay");
        }
    }
}

If so, it didn't work, I tried with frequency 1, 5, 10 and 100 and nothing...
I added that debug line to make sure the method was running and it is.

I also made this weird debug feature to find the ore if they would generate:
 

@SubscribeEvent
    public static void TestJumpEvent(LivingEvent.LivingJumpEvent event){
        LivingEntity entity = event.getEntityLiving();
        World world = entity.world;
        if (entity.getHeldItemMainhand().getItem() == ModBlocks.EMBER_CLAY.get().asItem()){
            Minecraft.getInstance().player.sendChatMessage("Hello");
            for (int y = 0; y < 156; y++){
                for (int x = entity.getPosition().getX() - 250; x < entity.getPosition().getX() + 250; x++){
                    for (int z = entity.getPosition().getZ() - 250; z < entity.getPosition().getZ() + 250; z++){
                        if (world.getBlockState(new BlockPos(x,y,z)) == ModBlocks.EMBER_CLAY.get().getDefaultState()) {
                            Minecraft.getInstance().player.sendChatMessage(x + " " + y + " " + z);
                        }
                    }
                }
            }
            Minecraft.getInstance().player.sendChatMessage("Bye");
        }
    }

And it finds the ember clay when I place it either manually or with the fill command... But didn't found none naturally generated...

I tried with around 300 for the frequency and it was working fine, not sure why it is not working for you

I managed to make it work.
I don't know why but apparently this line was not working:

ConfiguredPlacement config = Placement.COUNT_RANGE.configure(new CountRangeConfig(30, 0, 0, 200));

So I moved it inside the brackets for withPlacement() and it works. Like so:
 

public class ModOreGen {
    public static void generateOre() {
        for (Biome biome : ForgeRegistries.BIOMES) {
            biome.addFeature(Decoration.UNDERGROUND_ORES, Feature.ORE.withConfiguration(new OreFeatureConfig(OreFeatureConfig.FillerBlockType.create("CLAY", "clay", new BlockMatcher(Blocks.CLAY)), ModBlocks.EMBER_CLAY.get().getDefaultState(), 6)).withPlacement(Placement.COUNT_RANGE.configure(new CountRangeConfig(500, 50, 0, 70))));
            Dharma.LOGGER.debug(biome.getDisplayName().toString() + "added ember clay");
        }
    }
}

With those values I get at least 1 ember clay block in almost every clay patch.

It works because you raised the rarity from 30 to 500, thats a big step 😉 ...it was tecnically working even before..but the rarity was too low...remember you were trying to replace clay blocks...and think about how few of them generates in the world (compared to stone for example)...so with rarity set to 30 the chances for your block to generate were simply too low

I don't know, before changing it I tried bumping the rarity to 3000 and even used it with FillerBlockType.NATURAL_STONE and was not working...

Weird....well if it works it works