[Question] Cannot generate trees in overworld

Sorry for disturbing. I’m trying to creating a mod with fabric and when to following the tutorial:trees, I met up with some problems.

I have the following code (most from the tutorial, based on the example mod project):

RichSaplingGenerator.java

public class RichSaplingGenerator extends SaplingGenerator {
  public RichSaplingGenerator() {
  }

  @Nullable
  @Override
  protected ConfiguredFeature<TreeFeatureConfig, ?> getTreeFeature(Random random, boolean bees) {
    return (ConfiguredFeature<TreeFeatureConfig, ?>) ExampleMod.TREE_RICH;
  }
}

RichSaplingBlock.java

public class RichSaplingBlock extends SaplingBlock {
    public RichSaplingBlock(SaplingGenerator generator, Settings settings) {
        super(generator, settings);
    }
}

ExampleMod.java

public class ExampleMod implements ModInitializer {
    public static ConfiguredFeature<?, ?> TREE_RICH = null;
    public static Block RICH_SAPLING = new RichSaplingBlock(
            new RichSaplingGenerator(),
            FabricBlockSettings.of(Material.PLANT).noCollision().ticksRandomly().breakInstantly());

    @Override
    public void onInitialize() {
        Registry.register(Registry.BLOCK, new Identifier("modid", "rich_sapling"), RICH_SAPLING);
        Registry.register(Registry.ITEM, new Identifier("modid", "rich_sapling"), new BlockItem(RICH_SAPLING, new Item.Settings().group(ItemGroup.MISC)));
        TREE_RICH = Feature.TREE
                // Configure the feature using the builder
                .configure(new TreeFeatureConfig.Builder(
                        new SimpleBlockStateProvider(Blocks.NETHERITE_BLOCK.getDefaultState()), // Trunk block provider
                        new StraightTrunkPlacer(8, 3, 0), // places a straight trunk
                        new SimpleBlockStateProvider(Blocks.DIAMOND_BLOCK.getDefaultState()), // Foliage block provider
                        new SimpleBlockStateProvider(RICH_SAPLING.getDefaultState()), // Sapling provider; used to determine what blocks the tree can generate on
                        new BlobFoliagePlacer(ConstantIntProvider.create(5), ConstantIntProvider.create(0), 3), // places leaves as a blob (radius, offset from trunk, height)
                        new TwoLayersFeatureSize(1, 0, 1) // The width of the tree at different layers; used to see how tall the tree can be without clipping into blocks
                ).build());
        // This code runs as soon as Minecraft is in a mod-load-ready state.
        // However, some things (like resources) may still be uninitialized.
        // Proceed with mild caution.
        RegistryKey<ConfiguredFeature<?, ?>> treeRich = RegistryKey.of(Registry.CONFIGURED_FEATURE_KEY, new Identifier("modid", "tree_rich"));

        Registry.register(BuiltinRegistries.CONFIGURED_FEATURE, treeRich.getValue(), TREE_RICH);

        // You should use the VEGETAL_DECORATION generation step for trees
        BiomeModifications.addFeature(BiomeSelectors.foundInOverworld(), GenerationStep.Feature.VEGETAL_DECORATION, treeRich);

        System.out.println("Hello Fabric world!");
    }
}

I found the feature is working, ie. I can put saplings and they will grow, the problem is that the tree does not generate in the overworld, and there’re no exceptions reported.

Did I do something wrong?

[warjort]

Its not my code. It’s just the first thing I found in recent updates on curseforge that had the tree/trees idiom in a simple example. I didn’t look at the details. 😃

[warjort]

Here’s a simple example: https://github.com/CamoMano/Vanilla-Enhanced/blob/master/src/main/java/com/vanillaenhanced/world/Features.java Note the difference between the basic REDWOOD_TREE and the decorated REDWOOD_TREES that includes worldgen placement information.