Examples with PacketData com.github.dirtpowered.dirtmv.data.protocol.PacketData used on opensource projects

Example 26 with PacketData

use of com.github.dirtpowered.dirtmv.data.protocol.PacketData in project DirtMultiversion by DirtPowered.

the class ProtocolStateHandler method registerTranslators.

@Override
public void registerTranslators() {
    addTranslator(0x00, ProtocolState.HANDSHAKE, PacketDirection.TO_SERVER, new PacketTranslator() {

        @Override
        public PacketData translate(ServerSession session, PacketData data) {
            UserData userData = session.getUserData();
            userData.setAddress(data.read(Type.V1_7_STRING, 1));
            userData.setPort(data.read(Type.UNSIGNED_SHORT, 2));
            userData.setProtocolState(ProtocolState.fromId(data.read(Type.VAR_INT, 3)));
            return PacketUtil.createPacket(0x00, new TypeHolder[] { // protocol version
            set(Type.VAR_INT, getTo().getProtocolNettyId()), data.read(1), data.read(2), data.read(3) });
        }
    });
    addTranslator(0x02, ProtocolState.LOGIN, PacketDirection.TO_CLIENT, new PacketTranslator() {

        @Override
        public PacketData translate(ServerSession session, PacketData data) {
            session.getUserData().setProtocolState(ProtocolState.PLAY);
            return data;
        }
    });
}

Example 27 with PacketData

use of com.github.dirtpowered.dirtmv.data.protocol.PacketData in project DirtMultiversion by DirtPowered.

the class ProtocolRelease23To22 method registerTranslators.

@Override
public void registerTranslators() {
    // login
    addTranslator(0x01, PacketDirection.TO_SERVER, new PacketTranslator() {

        @Override
        public PacketData translate(ServerSession session, PacketData data) {
            return PacketUtil.createPacket(0x01, new TypeHolder[] { // protocol version
            set(Type.INT, 22), data.read(1), data.read(2), data.read(4), data.read(5), data.read(6), data.read(7), data.read(8) });
        }
    });
    // login
    addTranslator(0x01, PacketDirection.TO_CLIENT, new PacketTranslator() {

        @Override
        public PacketData translate(ServerSession session, PacketData data) {
            return PacketUtil.createPacket(0x01, new TypeHolder[] { data.read(0), data.read(1), data.read(2), // world type
            set(Type.STRING, "default"), data.read(3), data.read(4), data.read(5), data.read(6), data.read(7) });
        }
    });
    // respawn
    addTranslator(0x09, PacketDirection.TO_SERVER, new PacketTranslator() {

        @Override
        public PacketData translate(ServerSession session, PacketData data) {
            return PacketUtil.createPacket(0x09, new TypeHolder[] { data.read(0), data.read(1), data.read(2), data.read(3), data.read(4) });
        }
    });
    // respawn
    addTranslator(0x09, PacketDirection.TO_CLIENT, new PacketTranslator() {

        @Override
        public PacketData translate(ServerSession session, PacketData data) {
            return PacketUtil.createPacket(0x09, new TypeHolder[] { data.read(0), data.read(1), data.read(2), data.read(3), data.read(4), // world type
            set(Type.STRING, "default") });
        }
    });
    // custom payload
    addTranslator(0xFA, PacketDirection.TO_SERVER, new PacketTranslator() {

        @Override
        public PacketData translate(ServerSession session, PacketData data) {
            // cancel packet
            return cancel();
        }
    });
    // chat
    addTranslator(0x03, PacketDirection.TO_SERVER, new PacketTranslator() {

        @Override
        public PacketData translate(ServerSession session, PacketData data) {
            String filteredMessage = ChatFilter.filterChat(data.read(Type.STRING, 0));
            return PacketUtil.createPacket(0x03, new TypeHolder[] { set(Type.STRING, filteredMessage) });
        }
    });
    // creative item get
    addTranslator(0x6B, ProtocolState.PLAY, PacketDirection.TO_SERVER, new PacketTranslator() {

        @Override
        public PacketData translate(ServerSession session, PacketData data) {
            ItemStack item = data.read(Type.V1_0R_ITEM, 1);
            boolean notNull = item != null;
            if (notNull && !creativeTab.exists(item.getItemId())) {
                // replace all unknown items to stone
                item.setItemId(1);
                item.setData(0);
            }
            return PacketUtil.createPacket(0x6B, new TypeHolder[] { data.read(0), set(Type.V1_0R_ITEM, item) });
        }
    });
}

Example 28 with PacketData

use of com.github.dirtpowered.dirtmv.data.protocol.PacketData in project DirtMultiversion by DirtPowered.

the class ProtocolRelease28To23 method registerTranslators.

@Override
public void registerTranslators() {
    // login
    addTranslator(0x01, PacketDirection.TO_SERVER, new PacketTranslator() {

        @Override
        public PacketData translate(ServerSession session, PacketData data) {
            return PacketUtil.createPacket(0x01, new TypeHolder[] { set(Type.INT, 23), data.read(1), set(Type.LONG, 0L), data.read(2), data.read(3), set(Type.BYTE, data.read(Type.INT, 4).byteValue()), data.read(5), data.read(6), data.read(7) });
        }
    });
    // login
    addTranslator(0x01, PacketDirection.TO_CLIENT, new PacketTranslator() {

        @Override
        public PacketData translate(ServerSession session, PacketData data) {
            ProtocolStorage storage = session.getStorage();
            storage.set(DimensionTracker.class, new DimensionTracker());
            // biome data only for < b1.7 for now
            if (session.getMain().getConfiguration().getServerVersion().getRegistryId() < 17) {
                OldChunkData biomeData = new OldChunkData();
                biomeData.initialize(data.read(Type.LONG, 2));
                storage.set(OldChunkData.class, biomeData);
            }
            int dimension = data.read(Type.BYTE, 5).intValue();
            DimensionTracker dimensionTracker = storage.get(DimensionTracker.class);
            dimensionTracker.setDimension(dimension);
            return PacketUtil.createPacket(0x01, new TypeHolder[] { data.read(0), data.read(1), data.read(3), data.read(4), set(Type.INT, dimension), data.read(6), data.read(7), data.read(8) });
        }
    });
    // pre chunk
    addTranslator(0x32, PacketDirection.TO_CLIENT, new PacketTranslator() {

        @Override
        public PacketData translate(ServerSession session, PacketData data) {
            LoadedChunkTracker chunkTracker = session.getUserData().getProtocolStorage().get(LoadedChunkTracker.class);
            int chunkX = data.read(Type.INT, 0);
            int chunkZ = data.read(Type.INT, 1);
            byte mode = data.read(Type.BYTE, 2);
            if (mode == 0) {
                chunkTracker.removeChunk(chunkX, chunkZ);
            }
            return data;
        }
    });
    // chunk
    addTranslator(0x33, PacketDirection.TO_CLIENT, new BetaToV1_2ChunkTranslator(blockDataTransformer));
    // multi block change
    addTranslator(0x34, PacketDirection.TO_CLIENT, new PacketTranslator() {

        @Override
        public PacketData translate(ServerSession session, PacketData data) {
            LoadedChunkTracker chunkTracker = session.getUserData().getProtocolStorage().get(LoadedChunkTracker.class);
            V1_3BMultiBlockArray blockArray = (V1_3BMultiBlockArray) data.read(2).getObject();
            int chunkX = data.read(Type.INT, 0);
            int chunkZ = data.read(Type.INT, 1);
            int totalDataSize = 4 * blockArray.getSize();
            ByteArrayOutputStream byteArrayOutputStream = new ByteArrayOutputStream(totalDataSize);
            DataOutputStream dataOutputStream = new DataOutputStream(byteArrayOutputStream);
            V1_2MultiBlockArray newFormat = null;
            try {
                for (int i = 0; i < blockArray.getSize(); ++i) {
                    short coordinate = blockArray.getCoordsArray()[i];
                    int blockId = blockArray.getTypesArray()[i] & 255;
                    int blockData = blockArray.getMetadataArray()[i];
                    Block replacement = blockDataTransformer.replaceBlock(blockId, blockData);
                    dataOutputStream.writeShort(coordinate);
                    dataOutputStream.writeShort((short) ((replacement.getBlockId() & 4095) << 4 | replacement.getBlockData() & 15));
                }
                byte[] b = byteArrayOutputStream.toByteArray();
                newFormat = new V1_2MultiBlockArray(blockArray.getSize(), b.length, b);
                dataOutputStream.close();
            } catch (IOException e) {
                e.printStackTrace();
            }
            if (!chunkTracker.isChunkLoaded(chunkX, chunkZ)) {
                return cancel();
            }
            return PacketUtil.createPacket(0x34, new TypeHolder[] { data.read(0), data.read(1), set(Type.V1_2MULTIBLOCK_ARRAY, newFormat) });
        }
    });
    // block change
    addTranslator(0x35, PacketDirection.TO_CLIENT, new PacketTranslator() {

        @Override
        public PacketData translate(ServerSession session, PacketData data) {
            LoadedChunkTracker chunkTracker = session.getUserData().getProtocolStorage().get(LoadedChunkTracker.class);
            int chunkX = data.read(Type.INT, 0) >> 4;
            int chunkZ = data.read(Type.INT, 2) >> 4;
            byte blockId = data.read(Type.BYTE, 3);
            byte blockData = data.read(Type.BYTE, 4);
            Block replacement = blockDataTransformer.replaceBlock(blockId, blockData);
            if (!chunkTracker.isChunkLoaded(chunkX, chunkZ)) {
                return cancel();
            }
            return PacketUtil.createPacket(0x35, new TypeHolder[] { data.read(0), data.read(1), data.read(2), set(Type.BYTE, (byte) replacement.getBlockId()), set(Type.BYTE, (byte) replacement.getBlockData()) });
        }
    });
    // mob spawn
    addTranslator(0x18, PacketDirection.TO_CLIENT, new PacketTranslator() {

        @Override
        public PacketData translate(ServerSession session, PacketData data) {
            return PacketUtil.createPacket(0x18, new TypeHolder[] { data.read(0), data.read(1), data.read(2), data.read(3), data.read(4), data.read(5), data.read(6), // head yaw
            set(Type.BYTE, (byte) 0), data.read(7) });
        }
    });
    // respawn
    addTranslator(0x09, PacketDirection.TO_SERVER, new PacketTranslator() {

        @Override
        public PacketData translate(ServerSession session, PacketData data) {
            return PacketUtil.createPacket(0x09, new TypeHolder[] { set(Type.INT, (int) data.read(0).getObject()), data.read(1), data.read(2), data.read(3), // seed
            set(Type.LONG, 0L), data.read(4) });
        }
    });
    // respawn
    addTranslator(0x09, PacketDirection.TO_CLIENT, new PacketTranslator() {

        @Override
        public PacketData translate(ServerSession session, PacketData data) {
            ProtocolStorage storage = session.getStorage();
            int dimension = data.read(Type.BYTE, 0).intValue();
            DimensionTracker dimensionTracker = storage.get(DimensionTracker.class);
            dimensionTracker.setDimension(dimension);
            return PacketUtil.createPacket(0x09, new TypeHolder[] { set(Type.INT, dimension), data.read(1), data.read(2), data.read(3), data.read(5) });
        }
    });
    // entity relative move look
    addTranslator(0x21, PacketDirection.TO_CLIENT, new PacketTranslator() {

        @Override
        public PacketData translate(ServerSession session, PacketData data) {
            PacketData rotationPacket = PacketUtil.createPacket(0x23, new TypeHolder[] { // entityId
            data.read(0), // yaw
            data.read(4) });
            session.sendPacket(rotationPacket, PacketDirection.TO_CLIENT, getFrom());
            return data;
        }
    });
    // entity look
    addTranslator(0x20, PacketDirection.TO_CLIENT, new PacketTranslator() {

        @Override
        public PacketData translate(ServerSession session, PacketData data) {
            PacketData rotationPacket = PacketUtil.createPacket(0x23, new TypeHolder[] { data.read(0), data.read(1) });
            session.sendPacket(rotationPacket, PacketDirection.TO_CLIENT, getFrom());
            return data;
        }
    });
    // door change
    addTranslator(0x3D, PacketDirection.TO_CLIENT, new PacketTranslator() {

        @Override
        public PacketData translate(ServerSession session, PacketData data) {
            int effectId = data.read(Type.INT, 0);
            int effectData = data.read(Type.INT, 4);
            if (effectId == 2001) {
                int blockId = effectData & 255;
                int blockData = effectData >> 8 & 255;
                effectData = blockId + (blockData << 12);
            }
            return PacketUtil.createPacket(0x3D, new TypeHolder[] { data.read(0), data.read(1), data.read(2), data.read(3), set(Type.INT, effectData) });
        }
    });
    // creative item get
    addTranslator(0x6B, ProtocolState.PLAY, PacketDirection.TO_SERVER, new PacketTranslator() {

        @Override
        public PacketData translate(ServerSession session, PacketData data) {
            ItemStack item = data.read(Type.V1_0R_ITEM, 1);
            boolean notNull = item != null;
            if (notNull && !creativeTab.exists(item.getItemId())) {
                // replace all unknown items to stone
                item.setItemId(1);
                item.setData(0);
            }
            return PacketUtil.createPacket(0x6B, new TypeHolder[] { data.read(0), set(Type.V1_0R_ITEM, item) });
        }
    });
}

Example 29 with PacketData

use of com.github.dirtpowered.dirtmv.data.protocol.PacketData in project DirtMultiversion by DirtPowered.

the class BetaToV1_2ChunkTranslator method translate.

@Override
public PacketData translate(ServerSession session, PacketData data) {
    ProtocolStorage storage = session.getStorage();
    LoadedChunkTracker chunkTracker = storage.get(LoadedChunkTracker.class);
    DimensionTracker dimensionTracker = storage.get(DimensionTracker.class);
    boolean hasSkylight = dimensionTracker.getDimension() == 0;
    V1_3BChunk oldChunk = (V1_3BChunk) data.read(0).getObject();
    boolean groundUp = true;
    if (oldChunk.getXSize() * oldChunk.getYSize() * oldChunk.getZSize() != 32768) {
        groundUp = false;
    }
    int chunkX = oldChunk.getX() >> 4;
    int chunkZ = oldChunk.getZ() >> 4;
    if (groundUp) {
        V1_3BChunkStorage oldChunkStorage = new V1_3BChunkStorage(chunkX, chunkZ);
        V1_2RChunkStorage newChunkStorage = new V1_2RChunkStorage(hasSkylight, true, chunkX, chunkZ);
        oldChunkStorage.setChunkData(oldChunk.getChunk(), oldChunk.getX(), oldChunk.getY(), oldChunk.getZ(), oldChunk.getXSize(), oldChunk.getYSize(), oldChunk.getZSize(), 0, true);
        for (int x = 0; x < 16; x++) {
            for (int y = 0; y < 128; y++) {
                for (int z = 0; z < 16; z++) {
                    int oldBlockId = oldChunkStorage.getBlockId(x, y, z);
                    int oldBlockData = oldChunkStorage.getBlockData(x, y, z);
                    Block replacement = blockDataTransformer.replaceBlock(oldBlockId, oldBlockData);
                    newChunkStorage.setBlockId(x, y, z, replacement.getBlockId());
                    newChunkStorage.setBlockMetadata(x, y, z, replacement.getBlockData());
                    newChunkStorage.setBlockLight(x, y, z, oldChunkStorage.getBlockLight(x, y, z));
                    if (hasSkylight) {
                        newChunkStorage.setSkyLight(x, y, z, oldChunkStorage.getSkyLight(x, y, z));
                    }
                }
            }
        }
        byte[] biomes = new byte[256];
        if (storage.hasObject(OldChunkData.class)) {
            OldChunkData biomeData = storage.get(OldChunkData.class);
            biomes = biomeData.getBiomeDataAt(chunkX, chunkZ, !hasSkylight);
        } else {
            // forest
            Arrays.fill(biomes, (byte) 0x04);
        }
        newChunkStorage.setBiomeData(biomes);
        byte[] compressedData = newChunkStorage.getCompressedData(true, 0xff);
        session.sendPacket(PacketUtil.createPacket(0x33, new TypeHolder[] { new TypeHolder<>(Type.V1_2_CHUNK, new V1_2Chunk(chunkX, chunkZ, true, (short) newChunkStorage.getPrimaryBitmap(), (short) 0, newChunkStorage.getCompressedSize(), compressedData, new byte[0], newChunkStorage)) }), PacketDirection.TO_CLIENT, MinecraftVersion.R1_2_1);
        chunkTracker.setChunkLoaded(chunkX, chunkZ);
        return ServerProtocol.cancel();
    } else {
        if (!chunkTracker.isChunkLoaded(chunkX, chunkZ)) {
            return ServerProtocol.cancel();
        }
        Configuration c = session.getMain().getConfiguration();
        boolean replaceChests = session.getUserData().getClientVersion().getRegistryId() >= 39 && c.replaceChests();
        List<WorldBlock> worldBlocks = getUpdatedBlockList(oldChunk.getX(), oldChunk.getY(), oldChunk.getZ(), oldChunk.getXSize(), oldChunk.getYSize(), oldChunk.getZSize(), oldChunk.getChunk(), replaceChests);
        int records = worldBlocks.size();
        if (worldBlocks.isEmpty()) {
            return ServerProtocol.cancel();
        }
        List<List<WorldBlock>> slicedList = getSlicedData(worldBlocks);
        if (records > MAX_SINGLE_BLOCK_UPDATE_PACKETS) {
            for (List<WorldBlock> slicedData : slicedList) {
                chunkX = slicedData.get(0).getX() >> 4;
                chunkZ = slicedData.get(0).getZ() >> 4;
                int totalDataSize = 4 * slicedData.size();
                ByteArrayOutputStream baos = new ByteArrayOutputStream(totalDataSize);
                DataOutputStream dos = new DataOutputStream(baos);
                V1_2MultiBlockArray blockArray = null;
                try {
                    for (WorldBlock record : slicedData) {
                        dos.writeShort((record.getX() - (chunkX << 4)) << 12 | (record.getZ() - (chunkZ << 4)) << 8 | record.getY());
                        dos.writeShort((record.getBlockId() & 4095) << 4 | record.getBlockData() & 15);
                    }
                    byte[] bytes = baos.toByteArray();
                    blockArray = new V1_2MultiBlockArray(slicedData.size(), bytes.length, bytes);
                    dos.close();
                } catch (IOException e) {
                    e.printStackTrace();
                }
                PacketData multiBlockChange = PacketUtil.createPacket(0x34, new TypeHolder[] { new TypeHolder<>(Type.INT, chunkX), new TypeHolder<>(Type.INT, chunkZ), new TypeHolder<>(Type.V1_2MULTIBLOCK_ARRAY, blockArray) });
                session.sendPacket(multiBlockChange, PacketDirection.TO_CLIENT, MinecraftVersion.R1_2_1);
            }
        } else {
            for (WorldBlock block : worldBlocks) {
                PacketData blockUpdate = PacketUtil.createPacket(0x35, new TypeHolder[] { new TypeHolder<>(Type.INT, block.getX()), new TypeHolder<>(Type.BYTE, (byte) block.getY()), new TypeHolder<>(Type.INT, block.getZ()), new TypeHolder<>(Type.BYTE, (byte) block.getBlockId()), new TypeHolder<>(Type.BYTE, (byte) block.getBlockData()) });
                session.sendPacket(blockUpdate, PacketDirection.TO_CLIENT, MinecraftVersion.R1_2_1);
            }
        }
    }
    return ServerProtocol.cancel();
}

Example 30 with PacketData

use of com.github.dirtpowered.dirtmv.data.protocol.PacketData in project DirtMultiversion by DirtPowered.

the class ServerSession method sendPacket.

/**
 * Translates and sends packet to server
 *
 * @param packet    {@link PacketData} Packet
 * @param direction {@link PacketDirection} sending direction (client/server)
 * @param from      Version to start from
 */
public void sendPacket(PacketData packet, PacketDirection direction, MinecraftVersion from) {
    MinecraftVersion version = main.getConfiguration().getServerVersion();
    if (from != null && from != version) {
        version = from;
    }
    List<ServerProtocol> protocols = main.getTranslatorRegistry().findProtocol(userData, version);
    boolean flag = direction == PacketDirection.TO_CLIENT;
    if (!flag) {
        Collections.reverse(protocols);
    }
    PacketData target = packet;
    for (ServerProtocol protocol : protocols) {
        boolean isNetty = userData.getClientVersion().isNettyProtocol();
        ProtocolState state = isNetty ? userData.getProtocolState() : ProtocolState.PRE_NETTY;
        if (target == null) {
            return;
        }
        // packet queue workaround
        state = packet.getNettyState() != null ? packet.getNettyState() : state;
        if (!protocol.getFrom().isNettyProtocol()) {
            state = ProtocolState.PRE_NETTY;
        }
        PacketTranslator translator = protocol.getTranslatorFor(target.getOpCode(), state, direction);
        if (translator != null) {
            if (from == null || from != protocol.getFrom()) {
                try {
                    target = translator.translate(this, target);
                } catch (IOException e) {
                    disconnect(e.getMessage());
                    return;
                }
                if (target.getOpCode() == -1) {
                    return;
                }
            }
        }
    }
    if (flag) {
        sendPacket(target);
    } else {
        ClientSession clientSession = getClientSession();
        if (target.getOpCode() == 2 && /* handshake */
        !hasServerPingProtocol()) {
            connectToServer();
        }
        if (clientSession != null && clientSession.getChannel().isActive()) {
            clientSession.sendPacket(target);
            return;
        }
        // queued packets are always login packets
        target.setNettyState(ProtocolState.LOGIN);
        initialPacketQueue.add(target);
    }
}