Examples with ClientboundLevelChunkPacketData net.minecraft.network.protocol.game.ClientboundLevelChunkPacketData used on opensource projects

Example 1 with ClientboundLevelChunkPacketData

use of net.minecraft.network.protocol.game.ClientboundLevelChunkPacketData in project Denizen-For-Bukkit by DenizenScript.

the class FakeBlockHelper method handleMapChunkPacket.

public static ClientboundLevelChunkWithLightPacket handleMapChunkPacket(World world, ClientboundLevelChunkWithLightPacket originalPacket, int chunkX, int chunkZ, List<FakeBlock> blocks) {
    try {
        ClientboundLevelChunkWithLightPacket duplicateCorePacket = new ClientboundLevelChunkWithLightPacket(DenizenNetworkManagerImpl.copyPacket(originalPacket));
        copyPacketPaperPatch(duplicateCorePacket, originalPacket);
        FriendlyByteBuf copier = new FriendlyByteBuf(Unpooled.buffer());
        originalPacket.getChunkData().write(copier);
        ClientboundLevelChunkPacketData packet = new ClientboundLevelChunkPacketData(copier, chunkX, chunkZ);
        FriendlyByteBuf serial = originalPacket.getChunkData().getReadBuffer();
        FriendlyByteBuf outputSerial = new FriendlyByteBuf(Unpooled.buffer(serial.readableBytes()));
        List blockEntities = new ArrayList((List) CHUNKDATA_BLOCK_ENTITIES.get(originalPacket.getChunkData()));
        CHUNKDATA_BLOCK_ENTITIES.set(packet, blockEntities);
        ListIterator iterator = blockEntities.listIterator();
        while (iterator.hasNext()) {
            Object blockEnt = iterator.next();
            int xz = CHUNKDATA_BLOCKENTITYINFO_PACKEDXZ.getInt(blockEnt);
            int y = CHUNKDATA_BLOCKENTITYINFO_Y.getInt(blockEnt);
            int x = (chunkX << 4) + ((xz >> 4) & 15);
            int z = (chunkZ << 4) + (xz & 15);
            for (FakeBlock block : blocks) {
                LocationTag loc = block.location;
                if (loc.getBlockX() == x && loc.getBlockY() == y && loc.getBlockZ() == z && block.material != null) {
                    iterator.remove();
                    break;
                }
            }
        }
        int worldMinY = world.getMinHeight();
        int worldMaxY = world.getMaxHeight();
        int minChunkY = worldMinY >> 4;
        int maxChunkY = worldMaxY >> 4;
        Registry<Biome> biomeRegistry = ((CraftWorld) world).getHandle().registryAccess().registryOrThrow(Registry.BIOME_REGISTRY);
        for (int y = minChunkY; y < maxChunkY; y++) {
            int blockCount = serial.readShort();
            // reflected constructors as workaround for spigot remapper bug - Mojang "IdMap" became Spigot "IRegistry" but should be "Registry"
            PalettedContainer<BlockState> states = (PalettedContainer<BlockState>) PALETTEDCONTAINER_CTOR.newInstance(Block.BLOCK_STATE_REGISTRY, Blocks.AIR.defaultBlockState(), PalettedContainer.Strategy.SECTION_STATES);
            states.read(serial);
            PalettedContainer<Biome> biomes = (PalettedContainer<Biome>) PALETTEDCONTAINER_CTOR.newInstance(biomeRegistry, biomeRegistry.getOrThrow(Biomes.PLAINS), PalettedContainer.Strategy.SECTION_BIOMES);
            biomes.read(serial);
            if (anyBlocksInSection(blocks, y)) {
                int minY = y << 4;
                int maxY = (y << 4) + 16;
                for (FakeBlock block : blocks) {
                    int blockY = block.location.getBlockY();
                    if (blockY >= minY && blockY < maxY && block.material != null) {
                        int blockX = block.location.getBlockX();
                        int blockZ = block.location.getBlockZ();
                        blockX -= (blockX >> 4) * 16;
                        blockY -= (blockY >> 4) * 16;
                        blockZ -= (blockZ >> 4) * 16;
                        BlockState oldState = states.get(blockX, blockY, blockZ);
                        BlockState newState = getNMSState(block);
                        if (oldState.isAir() && !newState.isAir()) {
                            blockCount++;
                        } else if (newState.isAir() && !oldState.isAir()) {
                            blockCount--;
                        }
                        states.set(blockX, blockY, blockZ, newState);
                    }
                }
            }
            outputSerial.writeShort(blockCount);
            states.write(outputSerial);
            biomes.write(outputSerial);
        }
        byte[] outputBytes = outputSerial.array();
        CHUNKDATA_BUFFER_SETTER.invoke(packet, outputBytes);
        CHUNKPACKET_CHUNKDATA_SETTER.invoke(duplicateCorePacket, packet);
        return duplicateCorePacket;
    } catch (Throwable ex) {
        Debug.echoError(ex);
    }
    return null;
}