minecraft-kajetans-mod/src/main/java/me/km/blocks/ModTree.java

package me.km.blocks;

import java.util.Random;
import javax.annotation.Nullable;
import net.minecraft.block.BlockState;
import net.minecraft.block.Blocks;
import net.minecraft.block.trees.Tree;
import net.minecraft.world.gen.blockstateprovider.SimpleBlockStateProvider;
import net.minecraft.world.gen.feature.BaseTreeFeatureConfig;
import net.minecraft.world.gen.feature.ConfiguredFeature;
import net.minecraft.world.gen.feature.Feature;
import net.minecraft.world.gen.feature.FeatureSpread;
import net.minecraft.world.gen.feature.TwoLayerFeature;
import net.minecraft.world.gen.foliageplacer.BlobFoliagePlacer;
import net.minecraft.world.gen.trunkplacer.StraightTrunkPlacer;

public class ModTree extends Tree {
    private final BaseTreeFeatureConfig treeConfig;

    public ModTree(BlockState leaves) {
        treeConfig = new BaseTreeFeatureConfig.Builder(
                new SimpleBlockStateProvider(Blocks.OAK_LOG.getDefaultState()),
                new SimpleBlockStateProvider(leaves),
                new BlobFoliagePlacer(FeatureSpread.func_242252_a(2),
                        FeatureSpread.func_242252_a(0), 3),
                new StraightTrunkPlacer(5, 2, 0),
                new TwoLayerFeature(1, 0, 1)).setIgnoreVines().build();
    }

    @Nullable
    @Override
    protected ConfiguredFeature<BaseTreeFeatureConfig, ?> getTreeFeature(Random r, boolean largeHive) {
        return Feature.TREE.withConfiguration(treeConfig);
    }
}