Fixes

src/main/java/ru/betterend/registry/BiomeRegistry.java

@@ -154,4 +154,8 @@ public class BiomeRegistry {
 		Identifier id = biomeRegistry.getId(biome);
 		return id == null ? END.getID() : id;
 	}
+
+	public static EndBiome getBiome(Identifier biomeID) {
+		return ID_MAP.getOrDefault(biomeID, END);
+	}
 }

src/main/java/ru/betterend/util/BlocksHelper.java

@@ -154,7 +154,7 @@ public class BlocksHelper {
 						Set<BlockPos> remove = Sets.newHashSet();
 						ends.add(POS.toImmutable());
 						
-						while (!ends.isEmpty()) {
+						for (int i = 0; i < 128 && !ends.isEmpty(); i++) {
 							ends.forEach((pos) -> {
 								setWithoutUpdate(world, pos, AIR);
 								for (Direction dir: HORIZONTAL) {
@@ -169,8 +169,8 @@ public class BlocksHelper {
 								}
 								remove.add(pos);
 							});
-							ends.removeAll(remove);
 							ends.addAll(add);
+							ends.removeAll(remove);
 							remove.clear();
 							add.clear();
 						}

src/main/java/ru/betterend/world/biome/BiomeCrystalMountains.java

@@ -1,6 +1,8 @@
 package ru.betterend.world.biome;
 
+import net.minecraft.block.Blocks;
 import net.minecraft.entity.EntityType;
+import ru.betterend.registry.BlockRegistry;
 import ru.betterend.registry.FeatureRegistry;
 import ru.betterend.registry.SoundRegistry;
 import ru.betterend.registry.StructureRegistry;
@@ -9,6 +11,7 @@ public class BiomeCrystalMountains extends EndBiome {
 	public BiomeCrystalMountains() {
 		super(new BiomeDefinition("crystal_mountains")
 				.setPlantsColor(255, 133, 211)
+				.setSurface(BlockRegistry.CRYSTAL_MOSS, Blocks.END_STONE)
 				.setMusic(SoundRegistry.MUSIC_CRYSTAL_MOUNTAINS)
 				.addStructureFeature(StructureRegistry.MOUNTAIN)
 				.addFeature(FeatureRegistry.ROUND_CAVE)

src/main/java/ru/betterend/world/structures/piece/MountainPiece.java

@@ -5,6 +5,7 @@ import java.util.Random;
 
 import com.google.common.collect.Maps;
 
+import net.minecraft.block.BlockState;
 import net.minecraft.block.Blocks;
 import net.minecraft.nbt.CompoundTag;
 import net.minecraft.nbt.NbtHelper;
@@ -37,6 +38,7 @@ public class MountainPiece extends BasePiece {
 	private float height;
 	private float r2;
 	private Identifier biomeID;
+	private BlockState top;
 	
 	public MountainPiece(BlockPos center, float radius, float height, int id, Biome biome) {
 		super(StructureRegistry.MOUNTAIN_PIECE, id);
@@ -46,6 +48,7 @@ public class MountainPiece extends BasePiece {
 		this.r2 = radius * radius;
 		this.noise = new OpenSimplexNoise(MHelper.getSeed(534, center.getX(), center.getZ()));
 		this.biomeID = BiomeRegistry.getBiomeID(biome);
+		top = biome.getGenerationSettings().getSurfaceConfig().getTopMaterial();
 		makeBoundingBox();
 	}
 
@@ -70,6 +73,7 @@ public class MountainPiece extends BasePiece {
 		biomeID = new Identifier(tag.getString("biome"));
 		r2 = radius * radius;
 		noise = new OpenSimplexNoise(MHelper.getSeed(534, center.getX(), center.getZ()));
+		top = BiomeRegistry.getBiome(biomeID).getBiome().getGenerationSettings().getSurfaceConfig().getTopMaterial();
 	}
 
 	@Override
@@ -99,9 +103,11 @@ public class MountainPiece extends BasePiece {
 							maxY *= (float) noise.eval(px * 0.05, pz * 0.05) * 0.3F + 0.7F;
 							maxY *= (float) noise.eval(px * 0.1, pz * 0.1) * 0.1F + 0.8F;
 							maxY += 56;
+							int cover = (int) (maxY - 1);
+							boolean needCover = noise.eval(px * 0.3, pz * 0.3) > 0 && (noise.eval(px * 0.03, pz * 0.03) - (maxY - 60) * 0.2) > 0;
 							for (int y = minY; y < maxY; y++) {
 								pos.setY(y);
-								chunk.setBlockState(pos, Blocks.END_STONE.getDefaultState(), false);
+								chunk.setBlockState(pos, needCover && y >= cover ? top : Blocks.END_STONE.getDefaultState(), false);
 							}
 						}
 					}

src/main/resources/assets/betterend/blockstates/crystal_moss.json

@@ -0,0 +1,10 @@
+{
+	"variants": {
+		"": [
+				{ "model": "betterend:block/crystal_moss" },
+				{ "model": "betterend:block/crystal_moss", "y": 90 },
+				{ "model": "betterend:block/crystal_moss", "y": 180 },
+				{ "model": "betterend:block/crystal_moss", "y": 270 }
+		]
+	}
+}

src/main/resources/assets/betterend/blockstates/crystal_moss_path.json

@@ -0,0 +1,10 @@
+{
+	"variants": {
+		"": [
+			{ "model": "betterend:block/crystal_moss_path" },
+			{ "model": "betterend:block/crystal_moss_path", "y": 90 },
+			{ "model": "betterend:block/crystal_moss_path", "y": 180 },
+			{ "model": "betterend:block/crystal_moss_path", "y": 270 }
+		]
+	}
+}

src/main/resources/assets/betterend/models/block/crystal_moss.json

@@ -0,0 +1,12 @@
+{
+	"parent": "block/cube",
+	"textures": {
+		"down": "block/end_stone",
+		"east": "betterend:block/crystal_moss_side",
+		"north": "betterend:block/crystal_moss_side",
+		"particle": "betterend:block/crystal_moss_side",
+		"south": "betterend:block/crystal_moss_side",
+		"up": "betterend:block/crystal_moss_top",
+		"west": "betterend:block/crystal_moss_side"
+	}
+}

src/main/resources/assets/betterend/models/block/crystal_moss_path.json

@@ -0,0 +1,7 @@
+{   "parent": "betterend:block/path",
+    "textures": {
+        "top": "betterend:block/crystal_moss_path_top",
+        "side": "betterend:block/crystal_moss_side",
+        "bottom": "block/end_stone"
+    }
+}

src/main/resources/assets/betterend/models/item/crystal_moss.json

@@ -0,0 +1,3 @@
+{
+	"parent": "betterend:block/crystal_moss"
+}

src/main/resources/assets/betterend/models/item/crystal_moss_path.json

@@ -0,0 +1,3 @@
+{
+	"parent": "betterend:block/crystal_moss_path"
+}