Examples with PacketEvent com.comphenix.protocol.events.PacketEvent used on opensource projects

Example 6 with PacketEvent

use of com.comphenix.protocol.events.PacketEvent in project MyPet by xXKeyleXx.

the class ProtocolLibHook method registerSyncEnderDragonInteractionFix.

private void registerSyncEnderDragonInteractionFix() {
    ProtocolLibrary.getProtocolManager().addPacketListener(new PacketAdapter(MyPetApi.getPlugin(), PacketType.Play.Client.USE_ENTITY) {

        @Override
        public void onPacketReceiving(PacketEvent event) {
            if ((checkTemporaryPlayers && event.isPlayerTemporary()) || event.isCancelled()) {
                return;
            }
            PacketContainer packet = event.getPacket();
            if (packet.getType() == PacketType.Play.Client.USE_ENTITY) {
                try {
                    Entity ent = Bukkit.getServer().getScheduler().callSyncMethod(MyPetApi.getPlugin(), () -> {
                        int id = packet.getIntegers().read(0);
                        Entity entity = null;
                        try {
                            entity = packet.getEntityModifier(event).readSafely(0);
                        } catch (RuntimeException ignored) {
                        }
                        if (entity == null && event.getPlayer() != null) {
                            entity = MyPetApi.getPlatformHelper().getEntity(id, event.getPlayer().getWorld());
                        }
                        if (entity instanceof MyPetBukkitPart) {
                            entity = ((MyPetBukkitPart) entity).getPetOwner();
                        }
                        return entity;
                    }).get();
                    if (ent != null) {
                        packet.getIntegers().write(0, ent.getEntityId());
                    }
                } catch (Exception e) {
                    e.printStackTrace();
                }
            }
        }
    });
}

Example 7 with PacketEvent

use of com.comphenix.protocol.events.PacketEvent in project MyPet by xXKeyleXx.

the class ProtocolLibHook method registerCompatFix_1_8.

private void registerCompatFix_1_8() {
    ProtocolLibrary.getProtocolManager().addPacketListener(new PacketAdapter(MyPetApi.getPlugin(), ListenerPriority.HIGHEST, PacketType.Play.Server.SPAWN_ENTITY_LIVING, PacketType.Play.Server.ENTITY_METADATA) {

        Class entityClass = ReflectionUtil.getClass("org.bukkit.craftbukkit." + MyPetApi.getCompatUtil().getInternalVersion() + ".entity.CraftEntity");

        Method getHandleMethod = ReflectionUtil.getMethod(entityClass, "getHandle");

        @Override
        public void onPacketSending(PacketEvent event) {
            if ((checkTemporaryPlayers && event.isPlayerTemporary()) || event.isCancelled()) {
                return;
            }
            Player player = event.getPlayer();
            if (!isPlayerRunningv1_8(player)) {
                return;
            }
            PacketContainer newPacketContainer = event.getPacket().deepClone();
            event.setPacket(newPacketContainer);
            if (event.getPacketType() == PacketType.Play.Server.SPAWN_ENTITY_LIVING) {
                Entity entity = newPacketContainer.getEntityModifier(event).readSafely(0);
                if (entity instanceof MyPetBukkitEntity) {
                    MyPetBukkitEntity petEntity = (MyPetBukkitEntity) entity;
                    List<WrappedWatchableObject> wrappedWatchableObjectList = newPacketContainer.getDataWatcherModifier().read(0).getWatchableObjects();
                    newPacketContainer.getDataWatcherModifier().write(0, new WrappedDataWatcher(fixMetadata(petEntity, wrappedWatchableObjectList)));
                }
            } else if (event.getPacketType() == PacketType.Play.Server.ENTITY_METADATA) {
                Entity entity = newPacketContainer.getEntityModifier(event).read(0);
                if (entity instanceof MyPetBukkitEntity) {
                    MyPetBukkitEntity petEntity = (MyPetBukkitEntity) entity;
                    List<WrappedWatchableObject> wrappedWatchableObjectList = newPacketContainer.getWatchableCollectionModifier().read(0);
                    newPacketContainer.getWatchableCollectionModifier().write(0, fixMetadata(petEntity, wrappedWatchableObjectList));
                }
            }
        }

        private List<WrappedWatchableObject> fixMetadata(MyPetBukkitEntity petEntity, List<WrappedWatchableObject> wrappedWatchableObjectList) {
            if (petEntity == null || wrappedWatchableObjectList == null) {
                return wrappedWatchableObjectList;
            }
            if (petEntity.getMyPet() instanceof MyPetBaby && hasKey(12, wrappedWatchableObjectList)) {
                Object object = getKeyValue(12, wrappedWatchableObjectList);
                if (object instanceof Integer) {
                    int value = ((Number) object).intValue();
                    removeKey(12, wrappedWatchableObjectList);
                    if (petEntity.getPetType() == MyPetType.Horse) {
                        if (value == -24000) {
                            value = -1;
                        }
                    }
                    wrappedWatchableObjectList.add(new WrappedWatchableObject(12, (byte) value));
                }
            }
            if (petEntity.getPetType() == MyPetType.Wolf && hasKey(20, wrappedWatchableObjectList)) {
                Object object = getKeyValue(20, wrappedWatchableObjectList);
                if (object instanceof Byte) {
                    DyeColor color = DyeColor.getByWoolData((byte) ((Byte) object & 0xF));
                    removeKey(20, wrappedWatchableObjectList);
                    wrappedWatchableObjectList.add(new WrappedWatchableObject(20, (byte) ((15 - color.ordinal()) & 0xF)));
                }
            }
            if (petEntity.getPetType() == MyPetType.Enderman && hasKey(16, wrappedWatchableObjectList)) {
                Object object = getKeyValue(16, wrappedWatchableObjectList);
                if (object instanceof Byte) {
                    removeKey(16, wrappedWatchableObjectList);
                    wrappedWatchableObjectList.add(new WrappedWatchableObject(16, Short.valueOf((Byte) object)));
                }
            }
            return wrappedWatchableObjectList;
        }

        private boolean hasKey(int key, List<WrappedWatchableObject> wrappedWatchableObjectList) {
            for (WrappedWatchableObject next : wrappedWatchableObjectList) {
                if (next.getIndex() == key) {
                    return true;
                }
            }
            return false;
        }

        private Object getKeyValue(int key, List<WrappedWatchableObject> wrappedWatchableObjectList) {
            for (WrappedWatchableObject next : wrappedWatchableObjectList) {
                if (next.getIndex() == key) {
                    return next.getValue();
                }
            }
            return null;
        }

        private void removeKey(int key, List<WrappedWatchableObject> wrappedWatchableObjectList) {
            for (Iterator<WrappedWatchableObject> wrappedWatchableObjectIterator = wrappedWatchableObjectList.iterator(); wrappedWatchableObjectIterator.hasNext(); ) {
                WrappedWatchableObject next = wrappedWatchableObjectIterator.next();
                if (next.getIndex() == key) {
                    wrappedWatchableObjectIterator.remove();
                    break;
                }
            }
        }

        private boolean isPlayerRunningv1_8(Player player) {
            try {
                Object nmsPlayer = getHandleMethod.invoke(player);
                Object playerConnection = ReflectionUtil.getFieldValue(nmsPlayer.getClass(), nmsPlayer, "playerConnection");
                Object networkManager = ReflectionUtil.getFieldValue(playerConnection.getClass(), playerConnection, "networkManager");
                Method getVersionMethod = ReflectionUtil.getMethod(networkManager.getClass(), "getVersion");
                return (Integer) getVersionMethod.invoke(networkManager) > 5;
            } catch (Exception exception) {
                return false;
            }
        }
    });
}