Examples with PacketRemapper com.viaversion.viaversion.api.protocol.remapper.PacketRemapper used on opensource projects

Example 81 with PacketRemapper

use of com.viaversion.viaversion.api.protocol.remapper.PacketRemapper in project ViaVersion by ViaVersion.

the class EntityPackets method register.

public static void register(Protocol1_14To1_13_2 protocol) {
    MetadataRewriter1_14To1_13_2 metadataRewriter = protocol.get(MetadataRewriter1_14To1_13_2.class);
    protocol.registerClientbound(ClientboundPackets1_13.SPAWN_ENTITY, new PacketRemapper() {

        @Override
        public void registerMap() {
            // 0 - Entity id
            map(Type.VAR_INT);
            // 1 - UUID
            map(Type.UUID);
            // 2 - Type
            map(Type.BYTE, Type.VAR_INT);
            // 3 - X
            map(Type.DOUBLE);
            // 4 - Y
            map(Type.DOUBLE);
            // 5 - Z
            map(Type.DOUBLE);
            // 6 - Pitch
            map(Type.BYTE);
            // 7 - Yaw
            map(Type.BYTE);
            // 8 - Data
            map(Type.INT);
            // 9 - Velocity X
            map(Type.SHORT);
            // 10 - Velocity Y
            map(Type.SHORT);
            // 11 - Velocity Z
            map(Type.SHORT);
            // Track Entity
            handler(new PacketHandler() {

                @Override
                public void handle(PacketWrapper wrapper) throws Exception {
                    int entityId = wrapper.get(Type.VAR_INT, 0);
                    int typeId = wrapper.get(Type.VAR_INT, 1);
                    Entity1_13Types.EntityType type1_13 = Entity1_13Types.getTypeFromId(typeId, true);
                    typeId = metadataRewriter.newEntityId(type1_13.getId());
                    EntityType type1_14 = Entity1_14Types.getTypeFromId(typeId);
                    if (type1_14 != null) {
                        int data = wrapper.get(Type.INT, 0);
                        if (type1_14.is(Entity1_14Types.FALLING_BLOCK)) {
                            wrapper.set(Type.INT, 0, protocol.getMappingData().getNewBlockStateId(data));
                        } else if (type1_14.is(Entity1_14Types.MINECART)) {
                            // default is 0 = rideable minecart
                            switch(data) {
                                case 1:
                                    typeId = Entity1_14Types.CHEST_MINECART.getId();
                                    break;
                                case 2:
                                    typeId = Entity1_14Types.FURNACE_MINECART.getId();
                                    break;
                                case 3:
                                    typeId = Entity1_14Types.TNT_MINECART.getId();
                                    break;
                                case 4:
                                    typeId = Entity1_14Types.SPAWNER_MINECART.getId();
                                    break;
                                case 5:
                                    typeId = Entity1_14Types.HOPPER_MINECART.getId();
                                    break;
                                case 6:
                                    typeId = Entity1_14Types.COMMAND_BLOCK_MINECART.getId();
                                    break;
                            }
                        } else if ((type1_14.is(Entity1_14Types.ITEM) && data > 0) || type1_14.isOrHasParent(Entity1_14Types.ABSTRACT_ARROW)) {
                            if (type1_14.isOrHasParent(Entity1_14Types.ABSTRACT_ARROW)) {
                                wrapper.set(Type.INT, 0, data - 1);
                            }
                            // send velocity in separate packet, 1.14 is now ignoring the velocity
                            PacketWrapper velocity = wrapper.create(0x45);
                            velocity.write(Type.VAR_INT, entityId);
                            velocity.write(Type.SHORT, wrapper.get(Type.SHORT, 0));
                            velocity.write(Type.SHORT, wrapper.get(Type.SHORT, 1));
                            velocity.write(Type.SHORT, wrapper.get(Type.SHORT, 2));
                            velocity.scheduleSend(Protocol1_14To1_13_2.class);
                        }
                        // Register Type ID
                        wrapper.user().getEntityTracker(Protocol1_14To1_13_2.class).addEntity(entityId, type1_14);
                    }
                    wrapper.set(Type.VAR_INT, 1, typeId);
                }
            });
        }
    });
    protocol.registerClientbound(ClientboundPackets1_13.SPAWN_MOB, new PacketRemapper() {

        @Override
        public void registerMap() {
            // 0 - Entity ID
            map(Type.VAR_INT);
            // 1 - Entity UUID
            map(Type.UUID);
            // 2 - Entity Type
            map(Type.VAR_INT);
            // 3 - X
            map(Type.DOUBLE);
            // 4 - Y
            map(Type.DOUBLE);
            // 5 - Z
            map(Type.DOUBLE);
            // 6 - Yaw
            map(Type.BYTE);
            // 7 - Pitch
            map(Type.BYTE);
            // 8 - Head Pitch
            map(Type.BYTE);
            // 9 - Velocity X
            map(Type.SHORT);
            // 10 - Velocity Y
            map(Type.SHORT);
            // 11 - Velocity Z
            map(Type.SHORT);
            // 12 - Metadata
            map(Types1_13_2.METADATA_LIST, Types1_14.METADATA_LIST);
            handler(metadataRewriter.trackerAndRewriterHandler(Types1_14.METADATA_LIST));
        }
    });
    protocol.registerClientbound(ClientboundPackets1_13.SPAWN_PAINTING, new PacketRemapper() {

        @Override
        public void registerMap() {
            map(Type.VAR_INT);
            map(Type.UUID);
            map(Type.VAR_INT);
            map(Type.POSITION, Type.POSITION1_14);
            map(Type.BYTE);
        }
    });
    protocol.registerClientbound(ClientboundPackets1_13.SPAWN_PLAYER, new PacketRemapper() {

        @Override
        public void registerMap() {
            // 0 - Entity ID
            map(Type.VAR_INT);
            // 1 - Player UUID
            map(Type.UUID);
            // 2 - X
            map(Type.DOUBLE);
            // 3 - Y
            map(Type.DOUBLE);
            // 4 - Z
            map(Type.DOUBLE);
            // 5 - Yaw
            map(Type.BYTE);
            // 6 - Pitch
            map(Type.BYTE);
            // 7 - Metadata
            map(Types1_13_2.METADATA_LIST, Types1_14.METADATA_LIST);
            handler(metadataRewriter.trackerAndRewriterHandler(Types1_14.METADATA_LIST, Entity1_14Types.PLAYER));
        }
    });
    protocol.registerClientbound(ClientboundPackets1_13.ENTITY_ANIMATION, new PacketRemapper() {

        @Override
        public void registerMap() {
            map(Type.VAR_INT);
            handler(new PacketHandler() {

                @Override
                public void handle(PacketWrapper wrapper) throws Exception {
                    short animation = wrapper.passthrough(Type.UNSIGNED_BYTE);
                    if (animation == 2) {
                        // Leave bed
                        EntityTracker1_14 tracker = wrapper.user().getEntityTracker(Protocol1_14To1_13_2.class);
                        int entityId = wrapper.get(Type.VAR_INT, 0);
                        tracker.setSleeping(entityId, false);
                        PacketWrapper metadataPacket = wrapper.create(ClientboundPackets1_14.ENTITY_METADATA);
                        metadataPacket.write(Type.VAR_INT, entityId);
                        List<Metadata> metadataList = new LinkedList<>();
                        if (tracker.clientEntityId() != entityId) {
                            metadataList.add(new Metadata(6, Types1_14.META_TYPES.poseType, MetadataRewriter1_14To1_13_2.recalculatePlayerPose(entityId, tracker)));
                        }
                        metadataList.add(new Metadata(12, Types1_14.META_TYPES.optionalPositionType, null));
                        metadataPacket.write(Types1_14.METADATA_LIST, metadataList);
                        metadataPacket.scheduleSend(Protocol1_14To1_13_2.class);
                    }
                }
            });
        }
    });
    protocol.registerClientbound(ClientboundPackets1_13.USE_BED, ClientboundPackets1_14.ENTITY_METADATA, new PacketRemapper() {

        @Override
        public void registerMap() {
            map(Type.VAR_INT);
            handler(new PacketHandler() {

                @Override
                public void handle(PacketWrapper wrapper) throws Exception {
                    EntityTracker1_14 tracker = wrapper.user().getEntityTracker(Protocol1_14To1_13_2.class);
                    int entityId = wrapper.get(Type.VAR_INT, 0);
                    tracker.setSleeping(entityId, true);
                    Position position = wrapper.read(Type.POSITION);
                    List<Metadata> metadataList = new LinkedList<>();
                    metadataList.add(new Metadata(12, Types1_14.META_TYPES.optionalPositionType, position));
                    if (tracker.clientEntityId() != entityId) {
                        metadataList.add(new Metadata(6, Types1_14.META_TYPES.poseType, MetadataRewriter1_14To1_13_2.recalculatePlayerPose(entityId, tracker)));
                    }
                    wrapper.write(Types1_14.METADATA_LIST, metadataList);
                }
            });
        }
    });
    metadataRewriter.registerRemoveEntities(ClientboundPackets1_13.DESTROY_ENTITIES);
    metadataRewriter.registerMetadataRewriter(ClientboundPackets1_13.ENTITY_METADATA, Types1_13_2.METADATA_LIST, Types1_14.METADATA_LIST);
}

Example 82 with PacketRemapper

use of com.viaversion.viaversion.api.protocol.remapper.PacketRemapper in project ViaVersion by ViaVersion.

the class WorldPackets method register.

public static void register(Protocol1_14To1_13_2 protocol) {
    BlockRewriter blockRewriter = new BlockRewriter(protocol, null);
    protocol.registerClientbound(ClientboundPackets1_13.BLOCK_BREAK_ANIMATION, new PacketRemapper() {

        @Override
        public void registerMap() {
            map(Type.VAR_INT);
            map(Type.POSITION, Type.POSITION1_14);
            map(Type.BYTE);
        }
    });
    protocol.registerClientbound(ClientboundPackets1_13.BLOCK_ENTITY_DATA, new PacketRemapper() {

        @Override
        public void registerMap() {
            map(Type.POSITION, Type.POSITION1_14);
        }
    });
    protocol.registerClientbound(ClientboundPackets1_13.BLOCK_ACTION, new PacketRemapper() {

        @Override
        public void registerMap() {
            // Location
            map(Type.POSITION, Type.POSITION1_14);
            // Action id
            map(Type.UNSIGNED_BYTE);
            // Action param
            map(Type.UNSIGNED_BYTE);
            // Block id - /!\ NOT BLOCK STATE
            map(Type.VAR_INT);
            handler(new PacketHandler() {

                @Override
                public void handle(PacketWrapper wrapper) throws Exception {
                    wrapper.set(Type.VAR_INT, 0, protocol.getMappingData().getNewBlockId(wrapper.get(Type.VAR_INT, 0)));
                }
            });
        }
    });
    protocol.registerClientbound(ClientboundPackets1_13.BLOCK_CHANGE, new PacketRemapper() {

        @Override
        public void registerMap() {
            map(Type.POSITION, Type.POSITION1_14);
            map(Type.VAR_INT);
            handler(new PacketHandler() {

                @Override
                public void handle(PacketWrapper wrapper) throws Exception {
                    int id = wrapper.get(Type.VAR_INT, 0);
                    wrapper.set(Type.VAR_INT, 0, protocol.getMappingData().getNewBlockStateId(id));
                }
            });
        }
    });
    protocol.registerClientbound(ClientboundPackets1_13.SERVER_DIFFICULTY, new PacketRemapper() {

        @Override
        public void registerMap() {
            map(Type.UNSIGNED_BYTE);
            handler(new PacketHandler() {

                @Override
                public void handle(PacketWrapper wrapper) throws Exception {
                    // Added in 19w11a. Maybe https://bugs.mojang.com/browse/MC-44471 ?
                    wrapper.write(Type.BOOLEAN, false);
                }
            });
        }
    });
    blockRewriter.registerMultiBlockChange(ClientboundPackets1_13.MULTI_BLOCK_CHANGE);
    protocol.registerClientbound(ClientboundPackets1_13.EXPLOSION, new PacketRemapper() {

        @Override
        public void registerMap() {
            // X
            map(Type.FLOAT);
            // Y
            map(Type.FLOAT);
            // Z
            map(Type.FLOAT);
            // Radius
            map(Type.FLOAT);
            handler(new PacketHandler() {

                @Override
                public void handle(PacketWrapper wrapper) throws Exception {
                    for (int i = 0; i < 3; i++) {
                        float coord = wrapper.get(Type.FLOAT, i);
                        if (coord < 0f) {
                            coord = (int) coord;
                            wrapper.set(Type.FLOAT, i, coord);
                        }
                    }
                }
            });
        }
    });
    protocol.registerClientbound(ClientboundPackets1_13.CHUNK_DATA, new PacketRemapper() {

        @Override
        public void registerMap() {
            handler(new PacketHandler() {

                @Override
                public void handle(PacketWrapper wrapper) throws Exception {
                    ClientWorld clientWorld = wrapper.user().get(ClientWorld.class);
                    Chunk chunk = wrapper.read(new Chunk1_13Type(clientWorld));
                    wrapper.write(new Chunk1_14Type(), chunk);
                    int[] motionBlocking = new int[16 * 16];
                    int[] worldSurface = new int[16 * 16];
                    for (int s = 0; s < chunk.getSections().length; s++) {
                        ChunkSection section = chunk.getSections()[s];
                        if (section == null)
                            continue;
                        boolean hasBlock = false;
                        for (int i = 0; i < section.getPaletteSize(); i++) {
                            int old = section.getPaletteEntry(i);
                            int newId = protocol.getMappingData().getNewBlockStateId(old);
                            if (!hasBlock && newId != air && newId != voidAir && newId != caveAir) {
                                // air, void_air, cave_air
                                hasBlock = true;
                            }
                            section.setPaletteEntry(i, newId);
                        }
                        if (!hasBlock) {
                            section.setNonAirBlocksCount(0);
                            continue;
                        }
                        int nonAirBlockCount = 0;
                        for (int x = 0; x < 16; x++) {
                            for (int y = 0; y < 16; y++) {
                                for (int z = 0; z < 16; z++) {
                                    int id = section.getFlatBlock(x, y, z);
                                    if (id != air && id != voidAir && id != caveAir) {
                                        nonAirBlockCount++;
                                        // +1 (top of the block)
                                        worldSurface[x + z * 16] = y + s * 16 + 1;
                                    }
                                    if (protocol.getMappingData().getMotionBlocking().contains(id)) {
                                        // +1 (top of the block)
                                        motionBlocking[x + z * 16] = y + s * 16 + 1;
                                    }
                                    // Manually update light for non full blocks (block light must not be sent)
                                    if (Via.getConfig().isNonFullBlockLightFix() && protocol.getMappingData().getNonFullBlocks().contains(id)) {
                                        setNonFullLight(chunk, section, s, x, y, z);
                                    }
                                }
                            }
                        }
                        section.setNonAirBlocksCount(nonAirBlockCount);
                    }
                    CompoundTag heightMap = new CompoundTag();
                    heightMap.put("MOTION_BLOCKING", new LongArrayTag(encodeHeightMap(motionBlocking)));
                    heightMap.put("WORLD_SURFACE", new LongArrayTag(encodeHeightMap(worldSurface)));
                    chunk.setHeightMap(heightMap);
                    PacketWrapper lightPacket = wrapper.create(ClientboundPackets1_14.UPDATE_LIGHT);
                    lightPacket.write(Type.VAR_INT, chunk.getX());
                    lightPacket.write(Type.VAR_INT, chunk.getZ());
                    // all 18 bits set if ground up
                    int skyLightMask = chunk.isFullChunk() ? 0x3ffff : 0;
                    int blockLightMask = 0;
                    for (int i = 0; i < chunk.getSections().length; i++) {
                        ChunkSection sec = chunk.getSections()[i];
                        if (sec == null)
                            continue;
                        if (!chunk.isFullChunk() && sec.getLight().hasSkyLight()) {
                            skyLightMask |= (1 << (i + 1));
                        }
                        blockLightMask |= (1 << (i + 1));
                    }
                    lightPacket.write(Type.VAR_INT, skyLightMask);
                    lightPacket.write(Type.VAR_INT, blockLightMask);
                    // empty sky light mask
                    lightPacket.write(Type.VAR_INT, 0);
                    // empty block light mask
                    lightPacket.write(Type.VAR_INT, 0);
                    // only do this on the initial chunk send (not when chunk.isGroundUp() is false)
                    if (chunk.isFullChunk())
                        // chunk below 0
                        lightPacket.write(Type.BYTE_ARRAY_PRIMITIVE, FULL_LIGHT);
                    for (ChunkSection section : chunk.getSections()) {
                        if (section == null || !section.getLight().hasSkyLight()) {
                            if (chunk.isFullChunk()) {
                                lightPacket.write(Type.BYTE_ARRAY_PRIMITIVE, FULL_LIGHT);
                            }
                            continue;
                        }
                        lightPacket.write(Type.BYTE_ARRAY_PRIMITIVE, section.getLight().getSkyLight());
                    }
                    if (chunk.isFullChunk())
                        // chunk above 255
                        lightPacket.write(Type.BYTE_ARRAY_PRIMITIVE, FULL_LIGHT);
                    for (ChunkSection section : chunk.getSections()) {
                        if (section == null)
                            continue;
                        lightPacket.write(Type.BYTE_ARRAY_PRIMITIVE, section.getLight().getBlockLight());
                    }
                    EntityTracker1_14 entityTracker = wrapper.user().getEntityTracker(Protocol1_14To1_13_2.class);
                    int diffX = Math.abs(entityTracker.getChunkCenterX() - chunk.getX());
                    int diffZ = Math.abs(entityTracker.getChunkCenterZ() - chunk.getZ());
                    if (entityTracker.isForceSendCenterChunk() || diffX >= SERVERSIDE_VIEW_DISTANCE || diffZ >= SERVERSIDE_VIEW_DISTANCE) {
                        // Set center chunk
                        PacketWrapper fakePosLook = wrapper.create(ClientboundPackets1_14.UPDATE_VIEW_POSITION);
                        fakePosLook.write(Type.VAR_INT, chunk.getX());
                        fakePosLook.write(Type.VAR_INT, chunk.getZ());
                        fakePosLook.send(Protocol1_14To1_13_2.class);
                        entityTracker.setChunkCenterX(chunk.getX());
                        entityTracker.setChunkCenterZ(chunk.getZ());
                    }
                    lightPacket.send(Protocol1_14To1_13_2.class);
                    // Remove light references from chunk sections
                    for (ChunkSection section : chunk.getSections()) {
                        if (section != null) {
                            section.setLight(null);
                        }
                    }
                }
            });
        }
    });
    protocol.registerClientbound(ClientboundPackets1_13.EFFECT, new PacketRemapper() {

        @Override
        public void registerMap() {
            // Effect Id
            map(Type.INT);
            // Location
            map(Type.POSITION, Type.POSITION1_14);
            // Data
            map(Type.INT);
            handler(new PacketHandler() {

                @Override
                public void handle(PacketWrapper wrapper) throws Exception {
                    int id = wrapper.get(Type.INT, 0);
                    int data = wrapper.get(Type.INT, 1);
                    if (id == 1010) {
                        // Play record
                        wrapper.set(Type.INT, 1, protocol.getMappingData().getNewItemId(data));
                    } else if (id == 2001) {
                        // Block break + block break sound
                        wrapper.set(Type.INT, 1, protocol.getMappingData().getNewBlockStateId(data));
                    }
                }
            });
        }
    });
    protocol.registerClientbound(ClientboundPackets1_13.JOIN_GAME, new PacketRemapper() {

        @Override
        public void registerMap() {
            // 0 - Entity ID
            map(Type.INT);
            // 1 - Gamemode
            map(Type.UNSIGNED_BYTE);
            // 2 - Dimension
            map(Type.INT);
            handler(new PacketHandler() {

                @Override
                public void handle(PacketWrapper wrapper) throws Exception {
                    // Store the player
                    ClientWorld clientChunks = wrapper.user().get(ClientWorld.class);
                    int dimensionId = wrapper.get(Type.INT, 1);
                    clientChunks.setEnvironment(dimensionId);
                    int entityId = wrapper.get(Type.INT, 0);
                    Entity1_14Types entType = Entity1_14Types.PLAYER;
                    // Register Type ID
                    EntityTracker1_14 tracker = wrapper.user().getEntityTracker(Protocol1_14To1_13_2.class);
                    tracker.addEntity(entityId, entType);
                    tracker.setClientEntityId(entityId);
                }
            });
            handler(new PacketHandler() {

                @Override
                public void handle(PacketWrapper wrapper) throws Exception {
                    // 19w11a removed difficulty from join game
                    short difficulty = wrapper.read(Type.UNSIGNED_BYTE);
                    PacketWrapper difficultyPacket = wrapper.create(ClientboundPackets1_14.SERVER_DIFFICULTY);
                    difficultyPacket.write(Type.UNSIGNED_BYTE, difficulty);
                    // Unknown value added in 19w11a
                    difficultyPacket.write(Type.BOOLEAN, false);
                    difficultyPacket.scheduleSend(protocol.getClass());
                    // Max Players
                    wrapper.passthrough(Type.UNSIGNED_BYTE);
                    // Level Type
                    wrapper.passthrough(Type.STRING);
                    // Serverside view distance, added in 19w13a
                    wrapper.write(Type.VAR_INT, SERVERSIDE_VIEW_DISTANCE);
                }
            });
            handler(wrapper -> {
                // Manually send the packet
                wrapper.send(Protocol1_14To1_13_2.class);
                wrapper.cancel();
                // View distance has to be sent after the join packet
                sendViewDistancePacket(wrapper.user());
            });
        }
    });
    protocol.registerClientbound(ClientboundPackets1_13.MAP_DATA, new PacketRemapper() {

        @Override
        public void registerMap() {
            map(Type.VAR_INT);
            map(Type.BYTE);
            map(Type.BOOLEAN);
            handler(new PacketHandler() {

                @Override
                public void handle(PacketWrapper wrapper) throws Exception {
                    // new value, probably if the map is locked (added in 19w02a), old maps are not locked
                    wrapper.write(Type.BOOLEAN, false);
                }
            });
        }
    });
    protocol.registerClientbound(ClientboundPackets1_13.RESPAWN, new PacketRemapper() {

        @Override
        public void registerMap() {
            // 0 - Dimension ID
            map(Type.INT);
            handler(new PacketHandler() {

                @Override
                public void handle(PacketWrapper wrapper) throws Exception {
                    ClientWorld clientWorld = wrapper.user().get(ClientWorld.class);
                    int dimensionId = wrapper.get(Type.INT, 0);
                    clientWorld.setEnvironment(dimensionId);
                    EntityTracker1_14 entityTracker = wrapper.user().getEntityTracker(Protocol1_14To1_13_2.class);
                    // The client may reset the center chunk if dimension is changed
                    entityTracker.setForceSendCenterChunk(true);
                }
            });
            handler(new PacketHandler() {

                @Override
                public void handle(PacketWrapper wrapper) throws Exception {
                    // 19w11a removed difficulty from respawn
                    short difficulty = wrapper.read(Type.UNSIGNED_BYTE);
                    PacketWrapper difficultyPacket = wrapper.create(ClientboundPackets1_14.SERVER_DIFFICULTY);
                    difficultyPacket.write(Type.UNSIGNED_BYTE, difficulty);
                    // Unknown value added in 19w11a
                    difficultyPacket.write(Type.BOOLEAN, false);
                    difficultyPacket.scheduleSend(protocol.getClass());
                }
            });
            handler(wrapper -> {
                // Manually send the packet and update the viewdistance after
                wrapper.send(Protocol1_14To1_13_2.class);
                wrapper.cancel();
                sendViewDistancePacket(wrapper.user());
            });
        }
    });
    protocol.registerClientbound(ClientboundPackets1_13.SPAWN_POSITION, new PacketRemapper() {

        @Override
        public void registerMap() {
            map(Type.POSITION, Type.POSITION1_14);
        }
    });
}

Example 83 with PacketRemapper

use of com.viaversion.viaversion.api.protocol.remapper.PacketRemapper in project ViaVersion by ViaVersion.

the class EntityPackets method register.

public static void register(Protocol1_16_2To1_16_1 protocol) {
    MetadataRewriter1_16_2To1_16_1 metadataRewriter = protocol.get(MetadataRewriter1_16_2To1_16_1.class);
    metadataRewriter.registerTrackerWithData(ClientboundPackets1_16.SPAWN_ENTITY, Entity1_16_2Types.FALLING_BLOCK);
    metadataRewriter.registerTracker(ClientboundPackets1_16.SPAWN_MOB);
    metadataRewriter.registerTracker(ClientboundPackets1_16.SPAWN_PLAYER, Entity1_16_2Types.PLAYER);
    metadataRewriter.registerMetadataRewriter(ClientboundPackets1_16.ENTITY_METADATA, Types1_16.METADATA_LIST);
    metadataRewriter.registerRemoveEntities(ClientboundPackets1_16.DESTROY_ENTITIES);
    protocol.registerClientbound(ClientboundPackets1_16.JOIN_GAME, new PacketRemapper() {

        @Override
        public void registerMap() {
            // Entity ID
            map(Type.INT);
            handler(wrapper -> {
                short gamemode = wrapper.read(Type.UNSIGNED_BYTE);
                // Hardcore
                wrapper.write(Type.BOOLEAN, (gamemode & 0x08) != 0);
                gamemode &= ~0x08;
                wrapper.write(Type.UNSIGNED_BYTE, gamemode);
            });
            // Previous Gamemode
            map(Type.BYTE);
            // World List
            map(Type.STRING_ARRAY);
            handler(wrapper -> {
                // Throw away the old dimension registry, extra conversion would be too hard of a hit
                wrapper.read(Type.NBT);
                wrapper.write(Type.NBT, protocol.getMappingData().getDimensionRegistry());
                // Instead of the dimension's resource key, it now just wants the data directly
                String dimensionType = wrapper.read(Type.STRING);
                wrapper.write(Type.NBT, getDimensionData(dimensionType));
            });
            // Dimension
            map(Type.STRING);
            // Seed
            map(Type.LONG);
            // Max players
            map(Type.UNSIGNED_BYTE, Type.VAR_INT);
            // ...
            handler(wrapper -> {
                wrapper.user().getEntityTracker(Protocol1_16_2To1_16_1.class).addEntity(wrapper.get(Type.INT, 0), Entity1_16_2Types.PLAYER);
            });
        }
    });
    protocol.registerClientbound(ClientboundPackets1_16.RESPAWN, new PacketRemapper() {

        @Override
        public void registerMap() {
            handler(wrapper -> {
                String dimensionType = wrapper.read(Type.STRING);
                wrapper.write(Type.NBT, getDimensionData(dimensionType));
            });
        }
    });
}

Example 84 with PacketRemapper

use of com.viaversion.viaversion.api.protocol.remapper.PacketRemapper in project ViaVersion by ViaVersion.

the class WorldPackets method register.

public static void register(Protocol protocol) {
    BlockRewriter blockRewriter = new BlockRewriter(protocol, Type.POSITION1_14);
    blockRewriter.registerBlockAction(ClientboundPackets1_16.BLOCK_ACTION);
    blockRewriter.registerBlockChange(ClientboundPackets1_16.BLOCK_CHANGE);
    blockRewriter.registerAcknowledgePlayerDigging(ClientboundPackets1_16.ACKNOWLEDGE_PLAYER_DIGGING);
    protocol.registerClientbound(ClientboundPackets1_16.CHUNK_DATA, new PacketRemapper() {

        @Override
        public void registerMap() {
            handler(wrapper -> {
                Chunk chunk = wrapper.read(new Chunk1_16Type());
                wrapper.write(new Chunk1_16_2Type(), chunk);
                for (int s = 0; s < chunk.getSections().length; s++) {
                    ChunkSection section = chunk.getSections()[s];
                    if (section == null)
                        continue;
                    for (int i = 0; i < section.getPaletteSize(); i++) {
                        int old = section.getPaletteEntry(i);
                        section.setPaletteEntry(i, protocol.getMappingData().getNewBlockStateId(old));
                    }
                }
            });
        }
    });
    protocol.registerClientbound(ClientboundPackets1_16.MULTI_BLOCK_CHANGE, new PacketRemapper() {

        @Override
        public void registerMap() {
            handler(wrapper -> {
                wrapper.cancel();
                int chunkX = wrapper.read(Type.INT);
                int chunkZ = wrapper.read(Type.INT);
                long chunkPosition = 0;
                chunkPosition |= (chunkX & 0x3FFFFFL) << 42;
                chunkPosition |= (chunkZ & 0x3FFFFFL) << 20;
                List<BlockChangeRecord>[] sectionRecords = new List[16];
                BlockChangeRecord[] blockChangeRecord = wrapper.read(Type.BLOCK_CHANGE_RECORD_ARRAY);
                for (BlockChangeRecord record : blockChangeRecord) {
                    int chunkY = record.getY() >> 4;
                    List<BlockChangeRecord> list = sectionRecords[chunkY];
                    if (list == null) {
                        sectionRecords[chunkY] = (list = new ArrayList<>());
                    }
                    // Absolute y -> relative chunk section y
                    int blockId = protocol.getMappingData().getNewBlockStateId(record.getBlockId());
                    list.add(new BlockChangeRecord1_16_2(record.getSectionX(), record.getSectionY(), record.getSectionZ(), blockId));
                }
                // Now send separate packets for the different chunk sections
                for (int chunkY = 0; chunkY < sectionRecords.length; chunkY++) {
                    List<BlockChangeRecord> sectionRecord = sectionRecords[chunkY];
                    if (sectionRecord == null)
                        continue;
                    PacketWrapper newPacket = wrapper.create(ClientboundPackets1_16_2.MULTI_BLOCK_CHANGE);
                    newPacket.write(Type.LONG, chunkPosition | (chunkY & 0xFFFFFL));
                    // Ignore light updates
                    newPacket.write(Type.BOOLEAN, false);
                    newPacket.write(Type.VAR_LONG_BLOCK_CHANGE_RECORD_ARRAY, sectionRecord.toArray(EMPTY_RECORDS));
                    newPacket.send(Protocol1_16_2To1_16_1.class);
                }
            });
        }
    });
    blockRewriter.registerEffect(ClientboundPackets1_16.EFFECT, 1010, 2001);
}

Example 85 with PacketRemapper

use of com.viaversion.viaversion.api.protocol.remapper.PacketRemapper in project ViaVersion by ViaVersion.

the class PlayerPackets method register.

public static void register(Protocol protocol) {
    protocol.registerClientbound(ClientboundPackets1_14.RESPAWN, new PacketRemapper() {

        @Override
        public void registerMap() {
            map(Type.INT);
            // Level Seed
            handler(wrapper -> wrapper.write(Type.LONG, 0L));
        }
    });
    protocol.registerClientbound(ClientboundPackets1_14.JOIN_GAME, new PacketRemapper() {

        @Override
        public void registerMap() {
            // 0 - Entity ID
            map(Type.INT);
            // 1 - Gamemode
            map(Type.UNSIGNED_BYTE);
            // 2 - Dimension
            map(Type.INT);
            handler(wrapper -> {
                // Register Type ID
                EntityTracker tracker = wrapper.user().getEntityTracker(Protocol1_15To1_14_4.class);
                int entityId = wrapper.get(Type.INT, 0);
                tracker.addEntity(entityId, Entity1_15Types.PLAYER);
            });
            // Level Seed
            handler(wrapper -> wrapper.write(Type.LONG, 0L));
            // 3 - Max Players
            map(Type.UNSIGNED_BYTE);
            // 4 - Level Type
            map(Type.STRING);
            // 5 - View Distance
            map(Type.VAR_INT);
            // 6 - Reduce Debug Info
            map(Type.BOOLEAN);
            // Show Death Screen
            handler(wrapper -> wrapper.write(Type.BOOLEAN, !Via.getConfig().is1_15InstantRespawn()));
        }
    });
}