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

Example 1 with PacketHandler

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

the class BlockItemPackets1_10 method registerPackets.

@Override
protected void registerPackets() {
    registerSetSlot(ClientboundPackets1_9_3.SET_SLOT, Type.ITEM);
    registerWindowItems(ClientboundPackets1_9_3.WINDOW_ITEMS, Type.ITEM_ARRAY);
    // Entity Equipment Packet
    registerEntityEquipment(ClientboundPackets1_9_3.ENTITY_EQUIPMENT, Type.ITEM);
    protocol.registerClientbound(ClientboundPackets1_9_3.PLUGIN_MESSAGE, new PacketRemapper() {

        @Override
        public void registerMap() {
            // 0 - Channel
            map(Type.STRING);
            handler(new PacketHandler() {

                @Override
                public void handle(PacketWrapper wrapper) throws Exception {
                    if (wrapper.get(Type.STRING, 0).equalsIgnoreCase("MC|TrList")) {
                        // Passthrough Window ID
                        wrapper.passthrough(Type.INT);
                        int size = wrapper.passthrough(Type.UNSIGNED_BYTE);
                        for (int i = 0; i < size; i++) {
                            // Input Item
                            wrapper.write(Type.ITEM, handleItemToClient(wrapper.read(Type.ITEM)));
                            // Output Item
                            wrapper.write(Type.ITEM, handleItemToClient(wrapper.read(Type.ITEM)));
                            // Has second item
                            boolean secondItem = wrapper.passthrough(Type.BOOLEAN);
                            if (secondItem) {
                                // Second Item
                                wrapper.write(Type.ITEM, handleItemToClient(wrapper.read(Type.ITEM)));
                            }
                            // Trade disabled
                            wrapper.passthrough(Type.BOOLEAN);
                            // Number of tools uses
                            wrapper.passthrough(Type.INT);
                            // Maximum number of trade uses
                            wrapper.passthrough(Type.INT);
                        }
                    }
                }
            });
        }
    });
    registerClickWindow(ServerboundPackets1_9_3.CLICK_WINDOW, Type.ITEM);
    registerCreativeInvAction(ServerboundPackets1_9_3.CREATIVE_INVENTORY_ACTION, Type.ITEM);
    protocol.registerClientbound(ClientboundPackets1_9_3.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);
                    Chunk1_9_3_4Type type = new Chunk1_9_3_4Type(clientWorld);
                    Chunk chunk = wrapper.passthrough(type);
                    handleChunk(chunk);
                }
            });
        }
    });
    // Block Change Packet
    protocol.registerClientbound(ClientboundPackets1_9_3.BLOCK_CHANGE, new PacketRemapper() {

        @Override
        public void registerMap() {
            // 0 - Block Position
            map(Type.POSITION);
            // 1 - Block
            map(Type.VAR_INT);
            handler(new PacketHandler() {

                @Override
                public void handle(PacketWrapper wrapper) throws Exception {
                    int idx = wrapper.get(Type.VAR_INT, 0);
                    wrapper.set(Type.VAR_INT, 0, handleBlockID(idx));
                }
            });
        }
    });
    // Multi Block Change Packet
    protocol.registerClientbound(ClientboundPackets1_9_3.MULTI_BLOCK_CHANGE, new PacketRemapper() {

        @Override
        public void registerMap() {
            // 0 - Chunk X
            map(Type.INT);
            // 1 - Chunk Z
            map(Type.INT);
            map(Type.BLOCK_CHANGE_RECORD_ARRAY);
            handler(new PacketHandler() {

                @Override
                public void handle(PacketWrapper wrapper) throws Exception {
                    for (BlockChangeRecord record : wrapper.get(Type.BLOCK_CHANGE_RECORD_ARRAY, 0)) {
                        record.setBlockId(handleBlockID(record.getBlockId()));
                    }
                }
            });
        }
    });
    // Rewrite metadata items
    protocol.getEntityRewriter().filter().handler((event, meta) -> {
        if (// Is Item
        meta.metaType().type().equals(Type.ITEM))
            meta.setValue(handleItemToClient((Item) meta.getValue()));
    });
    // Particle
    protocol.registerClientbound(ClientboundPackets1_9_3.SPAWN_PARTICLE, new PacketRemapper() {

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

                @Override
                public void handle(PacketWrapper wrapper) throws Exception {
                    int id = wrapper.get(Type.INT, 0);
                    if (id == 46) {
                        // new falling_dust
                        // -> block_dust
                        wrapper.set(Type.INT, 0, 38);
                    }
                }
            });
        }
    });
}

Example 2 with PacketHandler

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

the class EntityPackets1_10 method registerPackets.

@Override
protected void registerPackets() {
    protocol.registerClientbound(ClientboundPackets1_9_3.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);
            // 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);
            // Track Entity
            handler(getObjectTrackerHandler());
            handler(getObjectRewriter(id -> Entity1_11Types.ObjectType.findById(id).orElse(null)));
            // Handle FallingBlock blocks
            handler(new PacketHandler() {

                @Override
                public void handle(PacketWrapper wrapper) throws Exception {
                    Optional<Entity1_12Types.ObjectType> type = Entity1_12Types.ObjectType.findById(wrapper.get(Type.BYTE, 0));
                    if (type.isPresent() && type.get() == Entity1_12Types.ObjectType.FALLING_BLOCK) {
                        int objectData = wrapper.get(Type.INT, 0);
                        int objType = objectData & 4095;
                        int data = objectData >> 12 & 15;
                        Block block = protocol.getItemRewriter().handleBlock(objType, data);
                        if (block == null)
                            return;
                        wrapper.set(Type.INT, 0, block.getId() | block.getData() << 12);
                    }
                }
            });
        }
    });
    registerTracker(ClientboundPackets1_9_3.SPAWN_EXPERIENCE_ORB, Entity1_10Types.EntityType.EXPERIENCE_ORB);
    registerTracker(ClientboundPackets1_9_3.SPAWN_GLOBAL_ENTITY, Entity1_10Types.EntityType.WEATHER);
    protocol.registerClientbound(ClientboundPackets1_9_3.SPAWN_MOB, new PacketRemapper() {

        @Override
        public void registerMap() {
            // 0 - Entity id
            map(Type.VAR_INT);
            // 1 - UUID
            map(Type.UUID);
            // 2 - Entity Type
            map(Type.UNSIGNED_BYTE);
            // 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_9.METADATA_LIST);
            // Track entity
            handler(getTrackerHandler(Type.UNSIGNED_BYTE, 0));
            // Rewrite entity type / metadata
            handler(new PacketHandler() {

                @Override
                public void handle(PacketWrapper wrapper) throws Exception {
                    int entityId = wrapper.get(Type.VAR_INT, 0);
                    EntityType type = tracker(wrapper.user()).entityType(entityId);
                    List<Metadata> metadata = wrapper.get(Types1_9.METADATA_LIST, 0);
                    handleMetadata(wrapper.get(Type.VAR_INT, 0), metadata, wrapper.user());
                    EntityData entityData = entityDataForType(type);
                    if (entityData != null) {
                        WrappedMetadata storage = new WrappedMetadata(metadata);
                        wrapper.set(Type.UNSIGNED_BYTE, 0, (short) entityData.replacementId());
                        if (entityData.hasBaseMeta())
                            entityData.defaultMeta().createMeta(storage);
                    }
                }
            });
        }
    });
    registerTracker(ClientboundPackets1_9_3.SPAWN_PAINTING, Entity1_10Types.EntityType.PAINTING);
    registerJoinGame(ClientboundPackets1_9_3.JOIN_GAME, Entity1_10Types.EntityType.PLAYER);
    registerRespawn(ClientboundPackets1_9_3.RESPAWN);
    protocol.registerClientbound(ClientboundPackets1_9_3.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 list
            map(Types1_9.METADATA_LIST);
            handler(getTrackerAndMetaHandler(Types1_9.METADATA_LIST, Entity1_11Types.EntityType.PLAYER));
        }
    });
    registerRemoveEntities(ClientboundPackets1_9_3.DESTROY_ENTITIES);
    registerMetadataRewriter(ClientboundPackets1_9_3.ENTITY_METADATA, Types1_9.METADATA_LIST);
}

Example 3 with PacketHandler

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

the class InventoryPackets1_13_1 method registerPackets.

@Override
public void registerPackets() {
    registerSetCooldown(ClientboundPackets1_13.COOLDOWN);
    registerWindowItems(ClientboundPackets1_13.WINDOW_ITEMS, Type.FLAT_ITEM_ARRAY);
    registerSetSlot(ClientboundPackets1_13.SET_SLOT, Type.FLAT_ITEM);
    protocol.registerClientbound(ClientboundPackets1_13.PLUGIN_MESSAGE, new PacketRemapper() {

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

                @Override
                public void handle(PacketWrapper wrapper) throws Exception {
                    String channel = wrapper.passthrough(Type.STRING);
                    if (channel.equals("minecraft:trader_list")) {
                        // Passthrough Window ID
                        wrapper.passthrough(Type.INT);
                        int size = wrapper.passthrough(Type.UNSIGNED_BYTE);
                        for (int i = 0; i < size; i++) {
                            // Input Item
                            Item input = wrapper.passthrough(Type.FLAT_ITEM);
                            handleItemToClient(input);
                            // Output Item
                            Item output = wrapper.passthrough(Type.FLAT_ITEM);
                            handleItemToClient(output);
                            // Has second item
                            boolean secondItem = wrapper.passthrough(Type.BOOLEAN);
                            if (secondItem) {
                                // Second Item
                                Item second = wrapper.passthrough(Type.FLAT_ITEM);
                                handleItemToClient(second);
                            }
                            // Trade disabled
                            wrapper.passthrough(Type.BOOLEAN);
                            // Number of tools uses
                            wrapper.passthrough(Type.INT);
                            // Maximum number of trade uses
                            wrapper.passthrough(Type.INT);
                        }
                    }
                }
            });
        }
    });
    registerEntityEquipment(ClientboundPackets1_13.ENTITY_EQUIPMENT, Type.FLAT_ITEM);
    registerClickWindow(ServerboundPackets1_13.CLICK_WINDOW, Type.FLAT_ITEM);
    registerCreativeInvAction(ServerboundPackets1_13.CREATIVE_INVENTORY_ACTION, Type.FLAT_ITEM);
    registerSpawnParticle(ClientboundPackets1_13.SPAWN_PARTICLE, Type.FLAT_ITEM, Type.FLOAT);
}

Example 4 with PacketHandler

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

the class Protocol1_14_2To1_14_3 method registerPackets.

@Override
protected void registerPackets() {
    registerClientbound(ClientboundPackets1_14.TRADE_LIST, new PacketRemapper() {

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

                @Override
                public void handle(PacketWrapper wrapper) throws Exception {
                    wrapper.passthrough(Type.VAR_INT);
                    int size = wrapper.passthrough(Type.UNSIGNED_BYTE);
                    for (int i = 0; i < size; i++) {
                        wrapper.passthrough(Type.FLAT_VAR_INT_ITEM);
                        wrapper.passthrough(Type.FLAT_VAR_INT_ITEM);
                        if (wrapper.passthrough(Type.BOOLEAN)) {
                            wrapper.passthrough(Type.FLAT_VAR_INT_ITEM);
                        }
                        wrapper.passthrough(Type.BOOLEAN);
                        wrapper.passthrough(Type.INT);
                        wrapper.passthrough(Type.INT);
                        wrapper.passthrough(Type.INT);
                        wrapper.passthrough(Type.INT);
                        wrapper.passthrough(Type.FLOAT);
                    }
                    wrapper.passthrough(Type.VAR_INT);
                    wrapper.passthrough(Type.VAR_INT);
                    wrapper.passthrough(Type.BOOLEAN);
                    wrapper.read(Type.BOOLEAN);
                }
            });
        }
    });
    RecipeRewriter recipeHandler = new RecipeRewriter1_14(this);
    registerClientbound(ClientboundPackets1_14.DECLARE_RECIPES, new PacketRemapper() {

        @Override
        public void registerMap() {
            handler(wrapper -> {
                int size = wrapper.passthrough(Type.VAR_INT);
                int deleted = 0;
                for (int i = 0; i < size; i++) {
                    String fullType = wrapper.read(Type.STRING);
                    String type = fullType.replace("minecraft:", "");
                    // id
                    String id = wrapper.read(Type.STRING);
                    if (type.equals("crafting_special_repairitem")) {
                        deleted++;
                        continue;
                    }
                    wrapper.write(Type.STRING, fullType);
                    wrapper.write(Type.STRING, id);
                    recipeHandler.handle(wrapper, type);
                }
                wrapper.set(Type.VAR_INT, 0, size - deleted);
            });
        }
    });
}

Example 5 with PacketHandler

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

the class EntityPackets1_14_1 method registerPackets.

@Override
protected void registerPackets() {
    registerTracker(ClientboundPackets1_14.SPAWN_EXPERIENCE_ORB, Entity1_14Types.EXPERIENCE_ORB);
    registerTracker(ClientboundPackets1_14.SPAWN_GLOBAL_ENTITY, Entity1_14Types.LIGHTNING_BOLT);
    registerTracker(ClientboundPackets1_14.SPAWN_PAINTING, Entity1_14Types.PAINTING);
    registerTracker(ClientboundPackets1_14.SPAWN_PLAYER, Entity1_14Types.PLAYER);
    registerTracker(ClientboundPackets1_14.JOIN_GAME, Entity1_14Types.PLAYER, Type.INT);
    registerRemoveEntities(ClientboundPackets1_14.DESTROY_ENTITIES);
    protocol.registerClientbound(ClientboundPackets1_14.SPAWN_ENTITY, new PacketRemapper() {

        @Override
        public void registerMap() {
            // 0 - Entity id
            map(Type.VAR_INT);
            // 1 - UUID
            map(Type.UUID);
            // 2 - Type
            map(Type.VAR_INT);
            handler(getTrackerHandler());
        }
    });
    protocol.registerClientbound(ClientboundPackets1_14.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_14.METADATA_LIST);
            handler(new PacketHandler() {

                @Override
                public void handle(PacketWrapper wrapper) throws Exception {
                    int entityId = wrapper.get(Type.VAR_INT, 0);
                    int type = wrapper.get(Type.VAR_INT, 1);
                    // Register Type ID
                    tracker(wrapper.user()).addEntity(entityId, Entity1_14Types.getTypeFromId(type));
                    List<Metadata> metadata = wrapper.get(Types1_14.METADATA_LIST, 0);
                    handleMetadata(entityId, metadata, wrapper.user());
                }
            });
        }
    });
    // Entity Metadata
    registerMetadataRewriter(ClientboundPackets1_14.ENTITY_METADATA, Types1_14.METADATA_LIST);
}