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

Example 51 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(Protocol1_9To1_8 protocol) {
    protocol.registerClientbound(ClientboundPackets1_8.CHAT_MESSAGE, new PacketRemapper() {

        @Override
        public void registerMap() {
            // 0 - Chat Message (json)
            map(Type.STRING, Protocol1_9To1_8.FIX_JSON);
            // 1 - Chat Positon
            map(Type.BYTE);
            handler(wrapper -> {
                try {
                    JsonObject obj = (JsonObject) wrapper.get(Type.COMPONENT, 0);
                    ChatRewriter.toClient(obj, wrapper.user());
                } catch (Exception e) {
                    e.printStackTrace();
                }
            });
        }
    });
    protocol.registerClientbound(ClientboundPackets1_8.TAB_LIST, new PacketRemapper() {

        @Override
        public void registerMap() {
            // 0 - Header
            map(Type.STRING, Protocol1_9To1_8.FIX_JSON);
            // 1 - Footer
            map(Type.STRING, Protocol1_9To1_8.FIX_JSON);
        }
    });
    protocol.registerClientbound(ClientboundPackets1_8.DISCONNECT, new PacketRemapper() {

        @Override
        public void registerMap() {
            // 0 - Reason
            map(Type.STRING, Protocol1_9To1_8.FIX_JSON);
        }
    });
    protocol.registerClientbound(ClientboundPackets1_8.TITLE, new PacketRemapper() {

        @Override
        public void registerMap() {
            // 0 - Action
            map(Type.VAR_INT);
            // We only handle if the title or subtitle is set then just write through.
            handler(wrapper -> {
                int action = wrapper.get(Type.VAR_INT, 0);
                if (action == 0 || action == 1) {
                    Protocol1_9To1_8.FIX_JSON.write(wrapper, wrapper.read(Type.STRING));
                }
            });
        // Everything else is handled.
        }
    });
    protocol.registerClientbound(ClientboundPackets1_8.PLAYER_POSITION, new PacketRemapper() {

        @Override
        public void registerMap() {
            // 0 - Player X
            map(Type.DOUBLE);
            // 1 - Player Y
            map(Type.DOUBLE);
            // 2 - Player Z
            map(Type.DOUBLE);
            // 3 - Player Yaw
            map(Type.FLOAT);
            // 4 - Player Pitch
            map(Type.FLOAT);
            // 5 - Player Flags
            map(Type.BYTE);
            handler(wrapper -> {
                // 6 - Teleport ID was added
                wrapper.write(Type.VAR_INT, 0);
            });
        }
    });
    protocol.registerClientbound(ClientboundPackets1_8.TEAMS, new PacketRemapper() {

        @Override
        public void registerMap() {
            // 0 - Team Name
            map(Type.STRING);
            // 1 - Mode
            map(Type.BYTE);
            handler(wrapper -> {
                // Mode
                byte mode = wrapper.get(Type.BYTE, 0);
                if (mode == 0 || mode == 2) {
                    // Display Name
                    wrapper.passthrough(Type.STRING);
                    // Prefix
                    wrapper.passthrough(Type.STRING);
                    // Suffix
                    wrapper.passthrough(Type.STRING);
                    // Friendly Fire
                    wrapper.passthrough(Type.BYTE);
                    // Name tag visibility
                    wrapper.passthrough(Type.STRING);
                    wrapper.write(Type.STRING, Via.getConfig().isPreventCollision() ? "never" : "");
                    // Colour
                    wrapper.passthrough(Type.BYTE);
                }
                if (mode == 0 || mode == 3 || mode == 4) {
                    // Players
                    String[] players = wrapper.passthrough(Type.STRING_ARRAY);
                    final EntityTracker1_9 entityTracker = wrapper.user().getEntityTracker(Protocol1_9To1_8.class);
                    String myName = wrapper.user().getProtocolInfo().getUsername();
                    String teamName = wrapper.get(Type.STRING, 0);
                    for (String player : players) {
                        if (entityTracker.isAutoTeam() && player.equalsIgnoreCase(myName)) {
                            if (mode == 4) {
                                // since removing add to auto team
                                // Workaround for packet order issue
                                wrapper.send(Protocol1_9To1_8.class);
                                wrapper.cancel();
                                entityTracker.sendTeamPacket(true, true);
                                entityTracker.setCurrentTeam("viaversion");
                            } else {
                                // since adding remove from auto team
                                entityTracker.sendTeamPacket(false, true);
                                entityTracker.setCurrentTeam(teamName);
                            }
                        }
                    }
                }
                if (mode == 1) {
                    // Remove team
                    final EntityTracker1_9 entityTracker = wrapper.user().getEntityTracker(Protocol1_9To1_8.class);
                    String teamName = wrapper.get(Type.STRING, 0);
                    if (entityTracker.isAutoTeam() && teamName.equals(entityTracker.getCurrentTeam())) {
                        // team was removed
                        // Workaround for packet order issue
                        wrapper.send(Protocol1_9To1_8.class);
                        wrapper.cancel();
                        entityTracker.sendTeamPacket(true, true);
                        entityTracker.setCurrentTeam("viaversion");
                    }
                }
            });
        }
    });
    protocol.registerClientbound(ClientboundPackets1_8.JOIN_GAME, new PacketRemapper() {

        @Override
        public void registerMap() {
            // 0 - Player ID
            map(Type.INT);
            // Parse this info
            handler(wrapper -> {
                int entityId = wrapper.get(Type.INT, 0);
                EntityTracker1_9 tracker = wrapper.user().getEntityTracker(Protocol1_9To1_8.class);
                tracker.addEntity(entityId, Entity1_10Types.EntityType.PLAYER);
                tracker.setClientEntityId(entityId);
            });
            // 1 - Player Gamemode
            map(Type.UNSIGNED_BYTE);
            // 2 - Player Dimension
            map(Type.BYTE);
            // 3 - World Difficulty
            map(Type.UNSIGNED_BYTE);
            // 4 - Max Players (Tab)
            map(Type.UNSIGNED_BYTE);
            // 5 - Level Type
            map(Type.STRING);
            // 6 - Reduced Debug info
            map(Type.BOOLEAN);
            handler(wrapper -> {
                EntityTracker1_9 tracker = wrapper.user().getEntityTracker(Protocol1_9To1_8.class);
                // Set player gamemode
                tracker.setGameMode(GameMode.getById(wrapper.get(Type.UNSIGNED_BYTE, 0)));
            });
            // Track player's dimension
            handler(wrapper -> {
                ClientWorld clientWorld = wrapper.user().get(ClientWorld.class);
                int dimensionId = wrapper.get(Type.BYTE, 0);
                clientWorld.setEnvironment(dimensionId);
            });
            // Gotta fake their op
            handler(wrapper -> {
                CommandBlockProvider provider = Via.getManager().getProviders().get(CommandBlockProvider.class);
                provider.sendPermission(wrapper.user());
            });
            // Scoreboard will be cleared when join game is received
            handler(wrapper -> {
                EntityTracker1_9 entityTracker = wrapper.user().getEntityTracker(Protocol1_9To1_8.class);
                if (Via.getConfig().isAutoTeam()) {
                    entityTracker.setAutoTeam(true);
                    // Workaround for packet order issue
                    wrapper.send(Protocol1_9To1_8.class);
                    wrapper.cancel();
                    entityTracker.sendTeamPacket(true, true);
                    entityTracker.setCurrentTeam("viaversion");
                } else {
                    entityTracker.setAutoTeam(false);
                }
            });
        }
    });
    protocol.registerClientbound(ClientboundPackets1_8.PLAYER_INFO, new PacketRemapper() {

        @Override
        public void registerMap() {
            // 0 - Action
            map(Type.VAR_INT);
            // 1 - Player Count
            map(Type.VAR_INT);
            // Due to this being a complex data structure we just use a handler.
            handler(wrapper -> {
                int action = wrapper.get(Type.VAR_INT, 0);
                int count = wrapper.get(Type.VAR_INT, 1);
                for (int i = 0; i < count; i++) {
                    // Player UUID
                    wrapper.passthrough(Type.UUID);
                    if (action == 0) {
                        // add player
                        // Player Name
                        wrapper.passthrough(Type.STRING);
                        int properties = wrapper.passthrough(Type.VAR_INT);
                        // loop through properties
                        for (int j = 0; j < properties; j++) {
                            // name
                            wrapper.passthrough(Type.STRING);
                            // value
                            wrapper.passthrough(Type.STRING);
                            boolean isSigned = wrapper.passthrough(Type.BOOLEAN);
                            if (isSigned) {
                                // signature
                                wrapper.passthrough(Type.STRING);
                            }
                        }
                        // gamemode
                        wrapper.passthrough(Type.VAR_INT);
                        // ping
                        wrapper.passthrough(Type.VAR_INT);
                        boolean hasDisplayName = wrapper.passthrough(Type.BOOLEAN);
                        if (hasDisplayName) {
                            // display name
                            Protocol1_9To1_8.FIX_JSON.write(wrapper, wrapper.read(Type.STRING));
                        }
                    } else if ((action == 1) || (action == 2)) {
                        // update gamemode || update latency
                        wrapper.passthrough(Type.VAR_INT);
                    } else if (action == 3) {
                        // update display name
                        boolean hasDisplayName = wrapper.passthrough(Type.BOOLEAN);
                        if (hasDisplayName) {
                            // display name
                            Protocol1_9To1_8.FIX_JSON.write(wrapper, wrapper.read(Type.STRING));
                        }
                    } else if (action == 4) {
                    // remove player
                    // no fields
                    }
                }
            });
        }
    });
    protocol.registerClientbound(ClientboundPackets1_8.PLUGIN_MESSAGE, new PacketRemapper() {

        @Override
        public void registerMap() {
            // 0 - Channel Name
            map(Type.STRING);
            handler(wrapper -> {
                String name = wrapper.get(Type.STRING, 0);
                if (name.equalsIgnoreCase("MC|BOpen")) {
                    // Not used anymore
                    wrapper.read(Type.REMAINING_BYTES);
                    wrapper.write(Type.VAR_INT, 0);
                }
                if (name.equalsIgnoreCase("MC|TrList")) {
                    // ID
                    wrapper.passthrough(Type.INT);
                    Short size = wrapper.passthrough(Type.UNSIGNED_BYTE);
                    for (int i = 0; i < size; ++i) {
                        Item item1 = wrapper.passthrough(Type.ITEM);
                        ItemRewriter.toClient(item1);
                        Item item2 = wrapper.passthrough(Type.ITEM);
                        ItemRewriter.toClient(item2);
                        boolean present = wrapper.passthrough(Type.BOOLEAN);
                        if (present) {
                            Item item3 = wrapper.passthrough(Type.ITEM);
                            ItemRewriter.toClient(item3);
                        }
                        wrapper.passthrough(Type.BOOLEAN);
                        wrapper.passthrough(Type.INT);
                        wrapper.passthrough(Type.INT);
                    }
                }
            });
        }
    });
    protocol.registerClientbound(ClientboundPackets1_8.RESPAWN, new PacketRemapper() {

        @Override
        public void registerMap() {
            // 0 - Dimension
            map(Type.INT);
            // 1 - Difficulty
            map(Type.UNSIGNED_BYTE);
            // 2 - GameMode
            map(Type.UNSIGNED_BYTE);
            // 3 - Level Type
            map(Type.STRING);
            // Track player's dimension
            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);
                }
            });
            handler(wrapper -> {
                // Client unloads chunks on respawn
                wrapper.user().get(ClientChunks.class).getLoadedChunks().clear();
                int gamemode = wrapper.get(Type.UNSIGNED_BYTE, 0);
                EntityTracker1_9 tracker = wrapper.user().getEntityTracker(Protocol1_9To1_8.class);
                tracker.setGameMode(GameMode.getById(gamemode));
            });
            // Fake permissions to get Commandblocks working
            handler(wrapper -> {
                CommandBlockProvider provider = Via.getManager().getProviders().get(CommandBlockProvider.class);
                provider.sendPermission(wrapper.user());
                provider.unloadChunks(wrapper.user());
            });
        }
    });
    protocol.registerClientbound(ClientboundPackets1_8.GAME_EVENT, new PacketRemapper() {

        @Override
        public void registerMap() {
            // 0 - Reason
            map(Type.UNSIGNED_BYTE);
            // 1 - Value
            map(Type.FLOAT);
            handler(wrapper -> {
                short reason = wrapper.get(Type.UNSIGNED_BYTE, 0);
                if (reason == 3) {
                    // Change gamemode
                    int gamemode = wrapper.get(Type.FLOAT, 0).intValue();
                    EntityTracker1_9 tracker = wrapper.user().getEntityTracker(Protocol1_9To1_8.class);
                    tracker.setGameMode(GameMode.getById(gamemode));
                } else if (reason == 4) {
                    // Open credits screen
                    wrapper.set(Type.FLOAT, 0, 1F);
                }
            });
        }
    });
    /* Removed packets */
    protocol.registerClientbound(ClientboundPackets1_8.SET_COMPRESSION, null, new PacketRemapper() {

        @Override
        public void registerMap() {
            handler(wrapper -> {
                wrapper.cancel();
                CompressionProvider provider = Via.getManager().getProviders().get(CompressionProvider.class);
                provider.handlePlayCompression(wrapper.user(), wrapper.read(Type.VAR_INT));
            });
        }
    });
    /* Incoming Packets */
    protocol.registerServerbound(ServerboundPackets1_9.TAB_COMPLETE, new PacketRemapper() {

        @Override
        public void registerMap() {
            // 0 - Requested Command
            map(Type.STRING);
            // 1 - Is Command Block
            map(Type.BOOLEAN, Type.NOTHING);
        }
    });
    protocol.registerServerbound(ServerboundPackets1_9.CLIENT_SETTINGS, new PacketRemapper() {

        @Override
        public void registerMap() {
            // 0 - locale
            map(Type.STRING);
            // 1 - View Distance
            map(Type.BYTE);
            // 2 - Chat Mode
            map(Type.VAR_INT, Type.BYTE);
            // 3 - If Chat Colours on
            map(Type.BOOLEAN);
            // 4 - Skin Parts
            map(Type.UNSIGNED_BYTE);
            handler(wrapper -> {
                int hand = wrapper.read(Type.VAR_INT);
                if (Via.getConfig().isLeftHandedHandling()) {
                    // Add 0x80 if left handed
                    if (hand == 0)
                        wrapper.set(Type.UNSIGNED_BYTE, 0, (short) (wrapper.get(Type.UNSIGNED_BYTE, 0).intValue() | 0x80));
                }
                wrapper.sendToServer(Protocol1_9To1_8.class);
                wrapper.cancel();
                Via.getManager().getProviders().get(MainHandProvider.class).setMainHand(wrapper.user(), hand);
            });
        }
    });
    protocol.registerServerbound(ServerboundPackets1_9.ANIMATION, new PacketRemapper() {

        @Override
        public void registerMap() {
            // 0 - Hand
            map(Type.VAR_INT, Type.NOTHING);
        }
    });
    protocol.cancelServerbound(ServerboundPackets1_9.TELEPORT_CONFIRM);
    protocol.cancelServerbound(ServerboundPackets1_9.VEHICLE_MOVE);
    protocol.cancelServerbound(ServerboundPackets1_9.STEER_BOAT);
    protocol.registerServerbound(ServerboundPackets1_9.PLUGIN_MESSAGE, new PacketRemapper() {

        @Override
        public void registerMap() {
            // 0 - Channel Name
            map(Type.STRING);
            handler(wrapper -> {
                String name = wrapper.get(Type.STRING, 0);
                if (name.equalsIgnoreCase("MC|BSign")) {
                    Item item = wrapper.passthrough(Type.ITEM);
                    if (item != null) {
                        // Written Book
                        item.setIdentifier(387);
                        ItemRewriter.rewriteBookToServer(item);
                    }
                }
                if (name.equalsIgnoreCase("MC|AutoCmd")) {
                    wrapper.set(Type.STRING, 0, "MC|AdvCdm");
                    wrapper.write(Type.BYTE, (byte) 0);
                    // X
                    wrapper.passthrough(Type.INT);
                    // Y
                    wrapper.passthrough(Type.INT);
                    // Z
                    wrapper.passthrough(Type.INT);
                    // Command
                    wrapper.passthrough(Type.STRING);
                    // Flag
                    wrapper.passthrough(Type.BOOLEAN);
                    wrapper.clearInputBuffer();
                }
                if (name.equalsIgnoreCase("MC|AdvCmd")) {
                    wrapper.set(Type.STRING, 0, "MC|AdvCdm");
                }
            });
        }
    });
    protocol.registerServerbound(ServerboundPackets1_9.CLIENT_STATUS, new PacketRemapper() {

        @Override
        public void registerMap() {
            // 0 - Action ID
            map(Type.VAR_INT);
            handler(wrapper -> {
                int action = wrapper.get(Type.VAR_INT, 0);
                if (action == 2) {
                    // cancel any blocking >.>
                    EntityTracker1_9 tracker = wrapper.user().getEntityTracker(Protocol1_9To1_8.class);
                    if (tracker.isBlocking()) {
                        if (!Via.getConfig().isShowShieldWhenSwordInHand()) {
                            tracker.setSecondHand(null);
                        }
                        tracker.setBlocking(false);
                    }
                }
            });
        }
    });
    protocol.registerServerbound(ServerboundPackets1_9.PLAYER_POSITION, new PacketRemapper() {

        @Override
        public void registerMap() {
            // 0 - X
            map(Type.DOUBLE);
            // 1 - Y
            map(Type.DOUBLE);
            // 2 - Z
            map(Type.DOUBLE);
            // 3 - Ground
            map(Type.BOOLEAN);
            handler(new PlayerMovementMapper());
        }
    });
    protocol.registerServerbound(ServerboundPackets1_9.PLAYER_POSITION_AND_ROTATION, new PacketRemapper() {

        @Override
        public void registerMap() {
            // 0 - X
            map(Type.DOUBLE);
            // 1 - Y
            map(Type.DOUBLE);
            // 2 - Z
            map(Type.DOUBLE);
            // 3 - Yaw
            map(Type.FLOAT);
            // 4 - Pitch
            map(Type.FLOAT);
            // 5 - Ground
            map(Type.BOOLEAN);
            handler(new PlayerMovementMapper());
        }
    });
    protocol.registerServerbound(ServerboundPackets1_9.PLAYER_ROTATION, new PacketRemapper() {

        @Override
        public void registerMap() {
            // 0 - Yaw
            map(Type.FLOAT);
            // 1 - Pitch
            map(Type.FLOAT);
            // 2 - Ground
            map(Type.BOOLEAN);
            handler(new PlayerMovementMapper());
        }
    });
    protocol.registerServerbound(ServerboundPackets1_9.PLAYER_MOVEMENT, new PacketRemapper() {

        @Override
        public void registerMap() {
            // 0 - Ground
            map(Type.BOOLEAN);
            handler(new PlayerMovementMapper());
        }
    });
}

Example 52 with PacketRemapper

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

the class Protocol1_17_1To1_17 method registerPackets.

@Override
protected void registerPackets() {
    registerClientbound(ClientboundPackets1_17.REMOVE_ENTITY, ClientboundPackets1_17_1.REMOVE_ENTITIES, new PacketRemapper() {

        @Override
        public void registerMap() {
            handler(wrapper -> {
                // Aaaaand back to an array again!
                int entityId = wrapper.read(Type.VAR_INT);
                wrapper.write(Type.VAR_INT_ARRAY_PRIMITIVE, new int[] { entityId });
            });
        }
    });
    registerClientbound(ClientboundPackets1_17.SET_SLOT, new PacketRemapper() {

        @Override
        public void registerMap() {
            // Container id
            map(Type.UNSIGNED_BYTE);
            // Add arbitrary state id
            create(Type.VAR_INT, 0);
        }
    });
    registerClientbound(ClientboundPackets1_17.WINDOW_ITEMS, new PacketRemapper() {

        @Override
        public void registerMap() {
            // Container id
            map(Type.UNSIGNED_BYTE);
            // Add arbitrary state id
            create(Type.VAR_INT, 0);
            handler(wrapper -> {
                // Length encoded as var int now
                wrapper.write(Type.FLAT_VAR_INT_ITEM_ARRAY_VAR_INT, wrapper.read(Type.FLAT_VAR_INT_ITEM_ARRAY));
                // Carried item - should work like this
                wrapper.write(Type.FLAT_VAR_INT_ITEM, null);
            });
        }
    });
    registerServerbound(ServerboundPackets1_17.CLICK_WINDOW, new PacketRemapper() {

        @Override
        public void registerMap() {
            // Container id
            map(Type.UNSIGNED_BYTE);
            // Remove state id
            read(Type.VAR_INT);
        }
    });
    registerServerbound(ServerboundPackets1_17.EDIT_BOOK, new PacketRemapper() {

        @Override
        public void registerMap() {
            handler(wrapper -> {
                CompoundTag tag = new CompoundTag();
                // Magic value for writable books
                Item item = new DataItem(942, (byte) 1, (short) 0, tag);
                // Write the item, edit the tag down the line
                wrapper.write(Type.FLAT_VAR_INT_ITEM, item);
                int slot = wrapper.read(Type.VAR_INT);
                // Save pages to tag
                int pages = wrapper.read(Type.VAR_INT);
                ListTag pagesTag = new ListTag(StringTag.class);
                for (int i = 0; i < pages; i++) {
                    String page = wrapper.read(PAGE_STRING_TYPE);
                    pagesTag.add(new StringTag(page));
                }
                // Legacy servers don't like an empty pages list
                if (pagesTag.size() == 0) {
                    pagesTag.add(new StringTag(""));
                }
                tag.put("pages", pagesTag);
                if (wrapper.read(Type.BOOLEAN)) {
                    // Save the title to tag
                    String title = wrapper.read(TITLE_STRING_TYPE);
                    tag.put("title", new StringTag(title));
                    // Even if unused, legacy servers check for the author tag
                    tag.put("author", new StringTag(wrapper.user().getProtocolInfo().getUsername()));
                    // Write signing
                    wrapper.write(Type.BOOLEAN, true);
                } else {
                    wrapper.write(Type.BOOLEAN, false);
                }
                // Write the slot
                wrapper.write(Type.VAR_INT, slot);
            });
        }
    });
}

Example 53 with PacketRemapper

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

the class Protocol1_17To1_16_4 method registerPackets.

@Override
protected void registerPackets() {
    entityRewriter.register();
    itemRewriter.register();
    WorldPackets.register(this);
    registerClientbound(ClientboundPackets1_16_2.TAGS, new PacketRemapper() {

        @Override
        public void registerMap() {
            handler(wrapper -> {
                // Tags are now generically written with resource location - 5 different Vanilla types
                wrapper.write(Type.VAR_INT, 5);
                for (RegistryType type : RegistryType.getValues()) {
                    // Prefix with resource location
                    wrapper.write(Type.STRING, type.resourceLocation());
                    // Id conversion
                    tagRewriter.handle(wrapper, tagRewriter.getRewriter(type), tagRewriter.getNewTags(type));
                    // Stop iterating after entity types
                    if (type == RegistryType.ENTITY) {
                        break;
                    }
                }
                // New Game Event tags type
                wrapper.write(Type.STRING, RegistryType.GAME_EVENT.resourceLocation());
                wrapper.write(Type.VAR_INT, NEW_GAME_EVENT_TAGS.length);
                for (String tag : NEW_GAME_EVENT_TAGS) {
                    wrapper.write(Type.STRING, tag);
                    wrapper.write(Type.VAR_INT_ARRAY_PRIMITIVE, new int[0]);
                }
            });
        }
    });
    new StatisticsRewriter(this).register(ClientboundPackets1_16_2.STATISTICS);
    SoundRewriter soundRewriter = new SoundRewriter(this);
    soundRewriter.registerSound(ClientboundPackets1_16_2.SOUND);
    soundRewriter.registerSound(ClientboundPackets1_16_2.ENTITY_SOUND);
    registerClientbound(ClientboundPackets1_16_2.RESOURCE_PACK, new PacketRemapper() {

        @Override
        public void registerMap() {
            handler(wrapper -> {
                wrapper.passthrough(Type.STRING);
                wrapper.passthrough(Type.STRING);
                // Required
                wrapper.write(Type.BOOLEAN, Via.getConfig().isForcedUse1_17ResourcePack());
                // Prompt message
                wrapper.write(Type.OPTIONAL_COMPONENT, Via.getConfig().get1_17ResourcePackPrompt());
            });
        }
    });
    registerClientbound(ClientboundPackets1_16_2.MAP_DATA, new PacketRemapper() {

        @Override
        public void registerMap() {
            handler(wrapper -> {
                wrapper.passthrough(Type.VAR_INT);
                wrapper.passthrough(Type.BYTE);
                // Tracking position removed
                wrapper.read(Type.BOOLEAN);
                wrapper.passthrough(Type.BOOLEAN);
                int size = wrapper.read(Type.VAR_INT);
                // Write whether markers exists or not
                if (size != 0) {
                    wrapper.write(Type.BOOLEAN, true);
                    wrapper.write(Type.VAR_INT, size);
                } else {
                    wrapper.write(Type.BOOLEAN, false);
                }
            });
        }
    });
    registerClientbound(ClientboundPackets1_16_2.TITLE, null, new PacketRemapper() {

        @Override
        public void registerMap() {
            handler(wrapper -> {
                // Title packet actions have been split into individual packets (the content hasn't changed)
                int type = wrapper.read(Type.VAR_INT);
                ClientboundPacketType packetType;
                switch(type) {
                    case 0:
                        packetType = ClientboundPackets1_17.TITLE_TEXT;
                        break;
                    case 1:
                        packetType = ClientboundPackets1_17.TITLE_SUBTITLE;
                        break;
                    case 2:
                        packetType = ClientboundPackets1_17.ACTIONBAR;
                        break;
                    case 3:
                        packetType = ClientboundPackets1_17.TITLE_TIMES;
                        break;
                    case 4:
                        packetType = ClientboundPackets1_17.CLEAR_TITLES;
                        // Reset times
                        wrapper.write(Type.BOOLEAN, false);
                        break;
                    case 5:
                        packetType = ClientboundPackets1_17.CLEAR_TITLES;
                        // Reset times
                        wrapper.write(Type.BOOLEAN, true);
                        break;
                    default:
                        throw new IllegalArgumentException("Invalid title type received: " + type);
                }
                wrapper.setId(packetType.getId());
            });
        }
    });
    registerClientbound(ClientboundPackets1_16_2.EXPLOSION, new PacketRemapper() {

        @Override
        public void registerMap() {
            // X
            map(Type.FLOAT);
            // Y
            map(Type.FLOAT);
            // Z
            map(Type.FLOAT);
            // Strength
            map(Type.FLOAT);
            handler(wrapper -> {
                // Collection length is now a var int
                wrapper.write(Type.VAR_INT, wrapper.read(Type.INT));
            });
        }
    });
    registerClientbound(ClientboundPackets1_16_2.SPAWN_POSITION, new PacketRemapper() {

        @Override
        public void registerMap() {
            map(Type.POSITION1_14);
            handler(wrapper -> {
                // Angle (which Mojang just forgot to write to the buffer, lol)
                wrapper.write(Type.FLOAT, 0f);
            });
        }
    });
    registerServerbound(ServerboundPackets1_17.CLIENT_SETTINGS, new PacketRemapper() {

        @Override
        public void registerMap() {
            // Locale
            map(Type.STRING);
            // View distance
            map(Type.BYTE);
            // Chat mode
            map(Type.VAR_INT);
            // Chat colors
            map(Type.BOOLEAN);
            // Chat flags
            map(Type.UNSIGNED_BYTE);
            // Main hand
            map(Type.VAR_INT);
            handler(wrapper -> {
                // Text filtering
                wrapper.read(Type.BOOLEAN);
            });
        }
    });
}

Example 54 with PacketRemapper

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

the class Protocol1_16To1_15_2 method registerPackets.

@Override
protected void registerPackets() {
    metadataRewriter.register();
    itemRewriter.register();
    EntityPackets.register(this);
    WorldPackets.register(this);
    tagRewriter = new TagRewriter(this);
    tagRewriter.register(ClientboundPackets1_15.TAGS, RegistryType.ENTITY);
    new StatisticsRewriter(this).register(ClientboundPackets1_15.STATISTICS);
    // Login Success
    registerClientbound(State.LOGIN, 0x02, 0x02, new PacketRemapper() {

        @Override
        public void registerMap() {
            handler(wrapper -> {
                // Transform string to int array
                UUID uuid = UUID.fromString(wrapper.read(Type.STRING));
                wrapper.write(Type.UUID_INT_ARRAY, uuid);
            });
        }
    });
    // Motd Status - line breaks are no longer allowed for player samples
    registerClientbound(State.STATUS, 0x00, 0x00, new PacketRemapper() {

        @Override
        public void registerMap() {
            handler(wrapper -> {
                String original = wrapper.passthrough(Type.STRING);
                JsonObject object = GsonUtil.getGson().fromJson(original, JsonObject.class);
                JsonObject players = object.getAsJsonObject("players");
                if (players == null)
                    return;
                JsonArray sample = players.getAsJsonArray("sample");
                if (sample == null)
                    return;
                JsonArray splitSamples = new JsonArray();
                for (JsonElement element : sample) {
                    JsonObject playerInfo = element.getAsJsonObject();
                    String name = playerInfo.getAsJsonPrimitive("name").getAsString();
                    if (name.indexOf('\n') == -1) {
                        splitSamples.add(playerInfo);
                        continue;
                    }
                    String id = playerInfo.getAsJsonPrimitive("id").getAsString();
                    for (String s : name.split("\n")) {
                        JsonObject newSample = new JsonObject();
                        newSample.addProperty("name", s);
                        newSample.addProperty("id", id);
                        splitSamples.add(newSample);
                    }
                }
                // Replace data if changed
                if (splitSamples.size() != sample.size()) {
                    players.add("sample", splitSamples);
                    wrapper.set(Type.STRING, 0, object.toString());
                }
            });
        }
    });
    ComponentRewriter componentRewriter = new TranslationMappings(this);
    // Handle (relevant) component cases for translatable and score changes
    registerClientbound(ClientboundPackets1_15.CHAT_MESSAGE, new PacketRemapper() {

        @Override
        public void registerMap() {
            map(Type.COMPONENT);
            map(Type.BYTE);
            handler(wrapper -> {
                componentRewriter.processText(wrapper.get(Type.COMPONENT, 0));
                // Sender uuid - always send as 'system'
                wrapper.write(Type.UUID, ZERO_UUID);
            });
        }
    });
    componentRewriter.registerBossBar(ClientboundPackets1_15.BOSSBAR);
    componentRewriter.registerTitle(ClientboundPackets1_15.TITLE);
    componentRewriter.registerCombatEvent(ClientboundPackets1_15.COMBAT_EVENT);
    SoundRewriter soundRewriter = new SoundRewriter(this);
    soundRewriter.registerSound(ClientboundPackets1_15.SOUND);
    soundRewriter.registerSound(ClientboundPackets1_15.ENTITY_SOUND);
    registerServerbound(ServerboundPackets1_16.INTERACT_ENTITY, new PacketRemapper() {

        @Override
        public void registerMap() {
            handler(wrapper -> {
                // Entity Id
                wrapper.passthrough(Type.VAR_INT);
                int action = wrapper.passthrough(Type.VAR_INT);
                if (action == 0 || action == 2) {
                    if (action == 2) {
                        // Location
                        wrapper.passthrough(Type.FLOAT);
                        wrapper.passthrough(Type.FLOAT);
                        wrapper.passthrough(Type.FLOAT);
                    }
                    // Hand
                    wrapper.passthrough(Type.VAR_INT);
                }
                // New boolean: Whether the client is sneaking/pressing shift
                wrapper.read(Type.BOOLEAN);
            });
        }
    });
    if (Via.getConfig().isIgnoreLong1_16ChannelNames()) {
        registerServerbound(ServerboundPackets1_16.PLUGIN_MESSAGE, new PacketRemapper() {

            @Override
            public void registerMap() {
                handler(wrapper -> {
                    String channel = wrapper.passthrough(Type.STRING);
                    if (channel.length() > 32) {
                        if (!Via.getConfig().isSuppressConversionWarnings()) {
                            Via.getPlatform().getLogger().warning("Ignoring incoming plugin channel, as it is longer than 32 characters: " + channel);
                        }
                        wrapper.cancel();
                    } else if (channel.equals("minecraft:register") || channel.equals("minecraft:unregister")) {
                        String[] channels = new String(wrapper.read(Type.REMAINING_BYTES), StandardCharsets.UTF_8).split("\0");
                        List<String> checkedChannels = new ArrayList<>(channels.length);
                        for (String registeredChannel : channels) {
                            if (registeredChannel.length() > 32) {
                                if (!Via.getConfig().isSuppressConversionWarnings()) {
                                    Via.getPlatform().getLogger().warning("Ignoring incoming plugin channel register of '" + registeredChannel + "', as it is longer than 32 characters");
                                }
                                continue;
                            }
                            checkedChannels.add(registeredChannel);
                        }
                        if (checkedChannels.isEmpty()) {
                            wrapper.cancel();
                            return;
                        }
                        wrapper.write(Type.REMAINING_BYTES, Joiner.on('\0').join(checkedChannels).getBytes(StandardCharsets.UTF_8));
                    }
                });
            }
        });
    }
    registerServerbound(ServerboundPackets1_16.PLAYER_ABILITIES, new PacketRemapper() {

        @Override
        public void registerMap() {
            handler(wrapper -> {
                wrapper.passthrough(Type.BYTE);
                // Flying and walking speed - not important anyways
                wrapper.write(Type.FLOAT, 0.05F);
                wrapper.write(Type.FLOAT, 0.1F);
            });
        }
    });
    cancelServerbound(ServerboundPackets1_16.GENERATE_JIGSAW);
    cancelServerbound(ServerboundPackets1_16.UPDATE_JIGSAW_BLOCK);
}

Example 55 with PacketRemapper

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

the class Protocol1_9To1_8 method registerPackets.

@Override
protected void registerPackets() {
    metadataRewriter.register();
    // Disconnect workaround (JSON!)
    registerClientbound(State.LOGIN, 0x00, 0x00, new PacketRemapper() {

        @Override
        public void registerMap() {
            handler(wrapper -> {
                if (wrapper.isReadable(Type.COMPONENT, 0)) {
                    // Already written as json somewhere else
                    return;
                }
                wrapper.write(Type.COMPONENT, fixJson(wrapper.read(Type.STRING)));
            });
        }
    });
    // Other Handlers
    SpawnPackets.register(this);
    InventoryPackets.register(this);
    EntityPackets.register(this);
    PlayerPackets.register(this);
    WorldPackets.register(this);
}