feat: Новогоднее событие, ожидаем обновления сервера

src/main/java/com/reider745/Main.java

@@ -82,7 +82,8 @@ public class Main {
         loader.registerHooksInitializationForClass(BlocksHooks.class);
         loader.registerHooksInitializationForClass(LevelHooks.class);
         loader.registerHooksInitializationForClass(ItemUtils.class);
-        loader.registerHooksInitializationForClass(AndroidSdkHooks.class);
+        loader.registerHooksInitializationForClass(AndroidHooks.class);
+        loader.registerHooksInitializationForClass(SnowfallEverywhere.class);
 
         loader.init();
         loader.run("cn.nukkit.Nukkit", args);

src/main/java/com/reider745/hooks/AndroidHooks.java

@@ -12,7 +12,7 @@ import java.util.HashMap;
 import java.util.Locale;
 
 @Hooks
-public class AndroidSdkHooks implements HookClass {
+public class AndroidHooks implements HookClass {
 	@FieldPatched(className = "android.os.Build.VERSION")
 	public static final String INCREMENTAL = "1661782216865";
 	@FieldPatched(className = "android.os.Build.VERSION")
@@ -276,6 +276,6 @@ public class AndroidSdkHooks implements HookClass {
 		sColorNameMap.put("teal", 0xFF008080);
 	}
 
-	private AndroidSdkHooks() {
+	private AndroidHooks() {
 	}
 }

src/main/java/com/reider745/hooks/SnowfallEverywhere.java

@@ -0,0 +1,108 @@
+package com.reider745.hooks;
+
+import java.io.IOException;
+import java.util.List;
+import java.util.function.Consumer;
+
+import com.reider745.api.hooks.HookClass;
+import com.reider745.api.hooks.annotation.Hooks;
+import com.reider745.api.hooks.annotation.Inject;
+
+import cn.nukkit.blockentity.BlockEntity;
+import cn.nukkit.blockentity.BlockEntitySpawnable;
+import cn.nukkit.level.DimensionData;
+import cn.nukkit.level.biome.Biome;
+import cn.nukkit.level.format.ChunkSection;
+import cn.nukkit.level.format.generic.BaseChunk;
+import cn.nukkit.level.format.generic.serializer.NetworkChunkSerializer;
+import cn.nukkit.nbt.NBTIO;
+import cn.nukkit.nbt.tag.CompoundTag;
+import cn.nukkit.utils.BinaryStream;
+import cn.nukkit.utils.ThreadCache;
+
+import java.nio.ByteOrder;
+import it.unimi.dsi.fastutil.ints.IntSet;
+import it.unimi.dsi.fastutil.objects.ObjectArrayList;
+
+/**
+ * Special christmas adaptation, do not use anywhere else.
+ */
+@Hooks
+public class SnowfallEverywhere implements HookClass {
+
+	@Inject(className = "cn.nukkit.level.format.generic.serializer.NetworkChunkSerializer")
+	public static void serialize(IntSet protocols, BaseChunk chunk,
+			Consumer<NetworkChunkSerializer.NetworkChunkSerializerCallback> callback, DimensionData dimensionData) {
+		for (int protocolId : protocols) {
+			byte[] blockEntities;
+			if (chunk.getBlockEntities().isEmpty()) {
+				blockEntities = new byte[0];
+			} else {
+				blockEntities = serializeEntities(chunk, protocolId);
+			}
+
+			int subChunkCount = 0;
+			ChunkSection[] sections = chunk.getSections();
+			for (int i = sections.length - 1; i >= 0; i--) {
+				if (!sections[i].isEmpty()) {
+					subChunkCount = i + 1;
+					break;
+				}
+			}
+
+			BinaryStream stream = ThreadCache.binaryStream.get().reset();
+			for (int i = 0; i < subChunkCount; i++) {
+				sections[i].writeTo(protocolId, stream);
+			}
+
+			stream.put(toSnowfallBiomeIdArray(chunk.getBiomeIdArray()));
+			// Border blocks
+			stream.putByte((byte) 0);
+			stream.put(blockEntities);
+
+			callback.accept(
+					new NetworkChunkSerializer.NetworkChunkSerializerCallback(protocolId, stream, subChunkCount));
+		}
+	}
+
+	private static byte[] toSnowfallBiomeIdArray(byte[] biomes) {
+		for (int i = 0, l = biomes.length; i < l; i++) {
+			Biome biome = Biome.getBiome(biomes[i] & 0xFF);
+			if (biome.isFreezing() || !biome.canRain()) {
+				continue;
+			}
+			biomes[i] = (byte) switch (biomes[i] & 0xFF) {
+				case 0, 24 -> 10; // OCEAN, DEEP_OCEAN -> FROZEN_OCEAN
+				case 7 -> 11; // RIVER -> FROZEN_RIVER
+				case 14, 15, 16, 25 -> 26; // MUSHROOM_ISLAND, MUSHROOM_ISLAND_SHORE, BEACH, STONE_BEACH -> COLD_BEACH
+				// PLAINS, FOREST, SWAMP, JUNGLE, BIRCH_FOREST, ROOFED_FOREST, SUNFLOWER_PLAINS,
+				// FLOWER_FOREST, SWAMPLAND_M, JUNGLE_M, JUNGLE_EDGE_M, BIRCH_FOREST_M,
+				// BIRCH_FOREST_HILLS_M, ROOFED_FOREST_M, EXTREME_HILLS_PLUS_M -> ICE_PLAINS
+				case 1, 4, 6, 21, 27, 29, 34, 131, 132, 134, 149, 151, 155, 156, 157, 162 -> 12;
+				// EXTREME_HILLS, FOREST_HILLS, EXTREME_HILLS_EDGE, JUNGLE_HILLS, JUNGLE_EDGE,
+				// BIRCH_FOREST_HILLS, EXTREME_HILLS_PLUS, EXTREME_HILLS_M -> ICE_PLAINS_SPIKES
+				case 3, 18, 20, 22, 23, 28, 129 -> 140;
+				case 5, 32, 160 -> 30; // TAIGA, MEGA_TAIGA, MEGA_SPRUCE_TAIGA -> COLD_TAIGA
+				case 133 -> 158; // TAIGA_M -> COLD_TAIGA_M
+				case 19, 33 -> 32; // TAIGA_HILLS, MEGA_TAIGA_HILLS -> COLD_TAIGA_HILLS
+				default -> 10; // FROZEN_OCEAN
+			};
+		}
+		return biomes;
+	}
+
+	private static byte[] serializeEntities(BaseChunk chunk, int protocol) {
+		List<CompoundTag> tagList = new ObjectArrayList<>();
+		for (BlockEntity blockEntity : chunk.getBlockEntities().values()) {
+			if (blockEntity instanceof BlockEntitySpawnable) {
+				tagList.add(((BlockEntitySpawnable) blockEntity).getSpawnCompound(protocol));
+			}
+		}
+
+		try {
+			return NBTIO.write(tagList, ByteOrder.LITTLE_ENDIAN, true);
+		} catch (IOException e) {
+			throw new RuntimeException(e);
+		}
+	}
+}