Hello

In my mod i have five new grass blocks, and new biomes with them not contains any animal (monsters are spawning)

Any idea where I can solve this?

Yes, my grass block is an instance of minecraft GrassBlock

 

Yes, in my biomes there is "addSpawn" code
Example
 

Spoiler

public class WNSafari extends WNBiome {
    public WNSafari(String name) {
        super(name,(new WNBiomeBuilder())
                .surfaceBuilder(new NoiseSurfaceBuilder(SurfaceBuilderConfig::deserialize, WNSurfaceBuilders.DESERT_CONFIG,SurfaceBuilder.SAND_SAND_GRAVEL_CONFIG), WNSurfaceBuilders.DESERT_CONFIG)
                .precipitation(RainType.RAIN)
                .category(Category.SAVANNA)
                .topography(WNBiomeBuilder.Topography.LOWLANDS)
                .climate(WNBiomeBuilder.Climate.CONTINENTAL_WARM)
                .depth(0.15F)
                .scale(0.03F)
                .temperature(0.8F)
                .downfall(0.8F)
                .waterColor(4159204)
                .waterFogColor(329011)
                .parent(null));



        this.addStructure(Feature.MINESHAFT, new MineshaftConfig(0.004D, MineshaftStructure.Type.NORMAL));
        this.addStructure(Feature.STRONGHOLD, IFeatureConfig.NO_FEATURE_CONFIG);
        this.addStructure(Feature.STRONGHOLD, IFeatureConfig.NO_FEATURE_CONFIG);
        this.addStructure(Feature.VILLAGE, new VillageConfig("village/savanna/town_centers", 8));
        WNBiomeFeatures.addCarvers(this);
        WNBiomeFeatures.addStructures(this);
        WNBiomeFeatures.addLakes(this);
        WNBiomeFeatures.addMonsterRooms(this);
        WNBiomeFeatures.addDoubleFlowers(this);
        WNBiomeFeatures.addStoneVariants(this);
        WNBiomeFeatures.addOres(this);
        WNBiomeFeatures.addSedimentDisks(this);
        WNBiomeFeatures.addDefaultFlowers(this);
        WNBiomeFeatures.addGrass(this,12);
        WNBiomeFeatures.addMushrooms(this);
        WNBiomeFeatures.addReedsAndPumpkins(this);
        WNBiomeFeatures.addSprings(this);

        WNBiomeFeatures.addPlant(this,Main.getBlockByID("wildnature:lupine_pink").getDefaultState().with(FloweringBushBase.FLOWERING,true),1);
        WNBiomeFeatures.addPlant(this,Main.getBlockByID("wildnature:lupine_red").getDefaultState().with(FloweringBushBase.FLOWERING,true),1);
        WNBiomeFeatures.addPlant(this,Main.getBlockByID("wildnature:lupine_blue").getDefaultState().with(FloweringBushBase.FLOWERING,true),1);
        WNBiomeFeatures.addPlant(this,Main.getBlockByID("wildnature:grass_flower").getDefaultState().with(FloweringBushBase.FLOWERING,true),4);



        WNBiomeFeatures.addTree(this,new SavannaTreeFeature(NoFeatureConfig::deserialize,true),4);

        plantRate=1;
        treeRate=4;

        applyPlants();
        applyTrees();

        this.addSpawn(EntityClassification.CREATURE, new SpawnListEntry(EntityType.SHEEP, 12, 4, 4));
        this.addSpawn(EntityClassification.CREATURE, new SpawnListEntry(EntityType.PIG, 10, 4, 4));
        this.addSpawn(EntityClassification.CREATURE, new SpawnListEntry(EntityType.CHICKEN, 10, 4, 4));
        this.addSpawn(EntityClassification.CREATURE, new SpawnListEntry(EntityType.COW, 8, 4, 4));
        this.addSpawn(EntityClassification.CREATURE, new SpawnListEntry(EntityType.WOLF, 5, 4, 4));
        this.addSpawn(EntityClassification.AMBIENT, new SpawnListEntry(EntityType.BAT, 10, 8, 8));
        this.addSpawn(EntityClassification.MONSTER, new SpawnListEntry(EntityType.SPIDER, 100, 4, 4));
        this.addSpawn(EntityClassification.MONSTER, new SpawnListEntry(EntityType.ZOMBIE, 95, 4, 4));
        this.addSpawn(EntityClassification.MONSTER, new SpawnListEntry(EntityType.ZOMBIE_VILLAGER, 5, 1, 1));
        this.addSpawn(EntityClassification.MONSTER, new SpawnListEntry(EntityType.SKELETON, 100, 4, 4));
        this.addSpawn(EntityClassification.MONSTER, new SpawnListEntry(EntityType.CREEPER, 100, 4, 4));
        this.addSpawn(EntityClassification.MONSTER, new SpawnListEntry(EntityType.SLIME, 100, 4, 4));
        this.addSpawn(EntityClassification.MONSTER, new SpawnListEntry(EntityType.ENDERMAN, 10, 1, 4));
        this.addSpawn(EntityClassification.MONSTER, new SpawnListEntry(EntityType.WITCH, 5, 1, 1));

    }


    @OnlyIn(Dist.CLIENT)
    public int getGrassColor(BlockPos pos)
    {
        return 0xC8EB60;
    }

    @OnlyIn(Dist.CLIENT)
    public int getFoliageColor(BlockPos pos)
    {
        return 0xBFEB60;
    }
}

 

It is possible to add block to animal spawn allowed?