Entitydata minecraft

Entitydata minecraft DEFAULT

If you use the /entitydata command on a repeating command block while you're in survival mode, it causes extreme lag while updating the entities, compared to Minecraft 1.8.

What I expected to happen was:
I used this entitydata command in Minecraft 1.8 for my maps. I made a map in the 1.9 snapshots. I used an entitydata command to make my mobs tougher against hand attacks.

What actually happened was:
When I changed to survival mode, the world started to lag a lot, causing mobs to move and attack very slowly.

Steps to Reproduce:
1. Have a few entities in your world (around 50 entities should be enough!)
2. Place a command block.
3. Set the command block to Repeat - Uncondictional - Always Active
4. Use the command: /entitydata @e[type=!Player]

{AbsorptionAmount:1}

5. Change to Survival Mode!
6. Try to mine a block or hit a mob. You should see that the mob movement is really laggy, and the blocks you mine sometimes reappear. This didn't happen in Minecraft 1.8, unless you had hundreds of entities or something. If this doesn't work try adding more entities.

Sours: https://bugs.mojang.com/browse/MC-93765

Java Code Examples for net.minecraft.entity.data.DataTracker

The following examples show how to use net.minecraft.entity.data.DataTracker. These examples are extracted from open source projects. You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may check out the related API usage on the sidebar.

Example 1

@Override public void multiconnect_setEntityTo(Entity entity) { lock.writeLock().lock(); this.trackedEntity = entity; //noinspection ConstantConditions Collection<DataTracker.Entry<?>> otherEntries = ((MixinDataTracker) (Object) entity.getDataTracker()).entries.values(); Map<Integer, DataTracker.Entry<?>> oldThisEntries = new HashMap<>(this.entries); this.entries.clear(); for (DataTracker.Entry<?> otherEntry : otherEntries) { int dataId = otherEntry.getData().getId(); DataTracker.Entry<?> entry = oldThisEntries.getOrDefault(dataId, otherEntry); entries.put(dataId, entry); entry.setDirty(true); } dirty = true; lock.writeLock().unlock(); }

Example 2

private void copyPlayerModel(Entity from, Entity to) { DataTracker fromTracker = from.getDataTracker(); DataTracker toTracker = to.getDataTracker(); Byte playerModel = fromTracker.get(PlayerEntity.PLAYER_MODEL_PARTS); toTracker.set(PlayerEntity.PLAYER_MODEL_PARTS, playerModel); }

Example 3

private static void reregisterAll() { nextAbsentId = -1; NEXT_IDS.clear(); oldTrackedData.clear(); oldTrackedDataHandlers.clear(); Set<Class<? extends Entity>> alreadyReregistered = new HashSet<>(); for (Class<? extends Entity> clazz : DEFAULT_DATA.keySet()) { reregisterDataForClass(clazz, alreadyReregistered); } for (DataTracker tracker : trackerInstances) { ((IDataTracker) tracker).multiconnect_recomputeEntries(); } dirty = false; }

Example 4

public static void setEntries(int entityId, List<DataTracker.Entry<?>> entries) { synchronized (PendingDataTrackerEntries.entries) { if (entries == null) { PendingDataTrackerEntries.entries.remove(entityId); } else { PendingDataTrackerEntries.entries.put(entityId, entries); } } }

Example 5

@Unique private void applyPendingEntityTrackerValues(int entityId) { if (ConnectionInfo.protocolVersion <= Protocols.V1_14_4) { List<DataTracker.Entry<?>> entries = PendingDataTrackerEntries.getEntries(entityId); if (entries != null) { PendingDataTrackerEntries.setEntries(entityId, null); EntityTrackerUpdateS2CPacket trackerPacket = new EntityTrackerUpdateS2CPacket(); //noinspection ConstantConditions TrackerUpdatePacketAccessor trackerPacketAccessor = (TrackerUpdatePacketAccessor) trackerPacket; trackerPacketAccessor.setId(entityId); trackerPacketAccessor.setTrackedValues(entries); onEntityTrackerUpdate(trackerPacket); } } }

Example 6

@Override public void multiconnect_recomputeEntries() { if (entries == null) return; List<DataTracker.Entry<?>> entryList = new ArrayList<>(entries.values()); entries.clear(); for (DataTracker.Entry entry : entryList) { entries.put(entry.getData().getId(), entry); } }

Example 7

public static synchronized void addTrackerInstance(DataTracker instance) { trackerInstances.add(instance); }

Example 8

public static List<DataTracker.Entry<?>> getEntries(int entityId) { synchronized (entries) { return entries.get(entityId); } }

Example 9

@Accessor void setTrackedValues(List<DataTracker.Entry<?>> entries);

Example 10

@Mutable @Accessor void setDataTracker(DataTracker dataTracker);

Example 11

@Inject(method = "<init>", at = @At("RETURN")) private void onInit(Entity entity, CallbackInfo ci) { DataTrackerManager.addTrackerInstance((DataTracker) (Object) this); }

Example 12

@Inject(method = "writeEntryToPacket", at = @At("HEAD"), cancellable = true) private static <T> void onWriteEntryToPacket(PacketByteBuf buf, DataTracker.Entry<T> entry, CallbackInfo ci) { if (entry.getData().getId() < 0) ci.cancel(); }

Example 13

@Inject(method = "getEntry", at = @At("RETURN")) private void assertCorrectType(TrackedData<?> requested, CallbackInfoReturnable<DataTracker.Entry<?>> ci) { if (ci.getReturnValue().getData().getType() != requested.getType()) { throw new AssertionError("getEntry returned wrong type!"); } }
Sours: https://www.programcreek.com/java-api-examples/?api=net.minecraft.entity.data.DataTracker
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How to Use the Data Command in Minecraft

This Minecraft tutorial explains how to use the /data command with screenshots and step-by-step instructions.

You can use the /data command to get, merge and remove NBT tags (formerly called data tags) for entities and block entities. The /data command is most useful for changing attributes of a mob after the mob has spawned or modifying attributes of a block entity after you have placed it.

TIP: Starting in Minecraft Java Edition (PC/Mac) 1.13, the /data command replaces both the /entitydata command and the /blockdata command.

Let's explore how to use this cheat (game command).

Supported Platforms

The /data command is available in the following versions of Minecraft:

* The version that it was added or removed, if applicable.
NOTE: Pocket Edition (PE), Xbox One, PS4, Nintendo Switch, and Windows 10 Edition are now called Bedrock Edition. We will continue to show them individually for version history.

Requirements

To run game commands in Minecraft, you have to turn cheats on in your world.

Data Command

Data Command in Minecraft Java Edition (PC/Mac)

In Minecraft Java Edition (PC/Mac), there are different syntaxes depending on what you would like to do with the NBT tag (formerly called data tag).

To get the NBT tag for a block entity:

/data get block <pos> [path] [scale]

To get the NBT tag for an entity:

/data get entity <target> [path] [scale]

To merge the NBT tags for a block entity:

/data merge block <pos> <nbt>

To merge the NBT tags for an entity:

/data merge entity <target> <nbt>

To remove the NBT tags at path for a block entity:

/data remove block <pos> <path>

To remove the NBT tags at path for an entity:

/data remove entity <target> <path>

Definitions

  • pos is the x y z coordinate of a block entity you wish to target.
  • path is optional. It is path to the NBT tag.
  • scale is optional. It is used to set the scale of a number retrieved by the /data command.
  • target is the name of the player (or a target selector) whose NBT tag you wish to target. If a target selector is provided, it must resolve to a single entity and not multiple entities.
  • nbt is the NBT tag (formerly called data tag) to merge or remove.

Examples

Example in Java Edition (PC/Mac)

To change the name of one cow to Duke in Minecraft Java Edition (PC/Mac):

/data merge entity @e[type=cow,limit=1] {CustomName:"\"Duke\""}

To get all NBT tag information for one player that is in Creative mode:

/data get entity @a[gamemode=creative,limit=1]

To get all NBT tag information for a chest at coordinates (329, 68, 91):

/data get block 329 68 91

How to Enter the Command

1. Open the Chat Window

The easiest way to run a command in Minecraft is within the chat window. The game control to open the chat window depends on the version of Minecraft:

  • For Java Edition (PC/Mac), press the key to open the chat window.

2. Type the Command

In this example, we are going to retrieve all of the NBT information for a block entity such as a chest.

To get the NBT tags for a chest at the coordinates (329, 68, 91), we would type the following command in Minecraft Java Edition (PC/Mac) 1.13:

/data get block 329 68 91

Type the command in the chat window. As you are typing, you will see the command appear in the lower left corner of the game window. Press the key to run the command.

data command

Once the cheat has been entered, all of the NBT tags will be listed in the lower left corner of the game window.

completed data command

In this example, the /data command returns the following NBT tags for the chest at 329, 68, 91:

329,68,91 has the following block data:{x:329,y:68,z:91, Items:[{Slot:0b,id:"minecraft:diamond_sword",Count:1b,tag:{ Damage:0}},{Slot:1b,id:"minecraft:iron_helmet",Count:1b,tag: {Damage:0}},{Slot:2b,id:"minecraft:iron_chestplate",Count:1 b,tag:{Damage:0}},{Slot:3b,id:"minecraft:iron_leggings", Count:1b,tag:{Damage:0}},{Slot:4b,id:"minecraft:iron_boots", Count:1b,tag:{Damage:0}}],id:"minecraft:chest",Lock:""}

Now we can see the x y z coordinates of the chest, all of the items inside the chest (ie: diamond sword, iron helmet, iron chestplate, iron leggings and iron boots) and the lock information for the chest.

Congratulations, you have learned how to use the /data command in Minecraft.

Other Game Commands

You can use other commands and cheats in Minecraft such as:

Sours: https://www.digminecraft.com/game_commands/data_command.php

Entities

In addition to regular network messages, there are various other systems provided to handle synchronizing entity data.

Spawn Data

In general, the spawning of modded entities is handled separately, by Forge.

Note

This means that simply extending a vanilla entity class may not inherit all its behavior. You may need to implement certain vanilla behaviors yourself.

You can add extra data to the spawn packet Forge sends by implementing the following interface.

IEntityAdditionalSpawnData

If your entity has data that is needed on the client, but does not change over time, then it can be added to the entity spawn packet using this interface. and control how the data should be encoded to/decoded from the network buffer.

Dynamic Data

Data Parameters

This is the main vanilla system for synchronizing entity data from the server to the client. As such, a number of vanilla examples are available to refer to.

Firstly, you need a for the data you wish to keep synchronized. This should be stored as a field in your entity class, obtained by calling and passing the entity class and a serializer for that type of data. The available serializer implementations can be found as static constants within the class.

Warning

You should only create data parameters for your own entities, within that entity’s class. Adding parameters to entities you do not control can cause the IDs used to send that data over the network to become desynchronized, causing difficult to debug crashes.

Then, override and call for each of your data parameters, passing the parameter and an initial value to use. Remember to always call the method first!

You can then get and set these values via your entity’s instance. Changes made will be synchronized to the client automatically.

Sours: https://mcforge.readthedocs.io/en/latest/networking/entities/

Minecraft entitydata

How to Use the EntityData Command in Minecraft

This Minecraft tutorial explains how to use the /entitydata command with screenshots and step-by-step instructions.

You can change the data tag for an entity using the /entitydata command in Minecraft. The /entitydata command is most useful for changing attributes of a mob after the mob has spawned or modifying attributes of an item after you have placed it.

TIP: Starting in Minecraft Java Edition (PC/Mac) 1.13, the /entitydata command was replaced by the /data command.

Let's explore how to use this cheat (game command).

Supported Platforms

The /entitydata command is available in the following versions of Minecraft:

* The version that it was added or removed, if applicable.
NOTE: Pocket Edition (PE), Xbox One, PS4, Nintendo Switch, and Windows 10 Edition are now called Bedrock Edition. We will continue to show them individually for version history.

Requirements

To run game commands in Minecraft, you have to turn cheats on in your world.

EntityData Command

EntityData Command in Minecraft Java Edition (PC/Mac)

In Minecraft Java Edition (PC/Mac), the syntax to change the data tag for an entity is:

/entitydata <entity> <dataTag>

Definitions

  • entity is the entity you want to target. It can be either the UUID for an entity or you can use the @e target selector to target all entities or a type of entity. (See Minecraft Entities).
  • dataTag is optional. It is the data tag that you want to set. It is a compound NBT tag such as {CustomName:Duke} or {ShowArms:1}.

Examples

Example in Java Edition (PC/Mac) 1.11 and 1.12

To change the name of all cows to Duke that are within 10 blocks in Minecraft Java Edition (PC/Mac) 1.11 and 1.12:

/entitydata @e[type=cow,r=10] {CustomName:Duke}

To show arms on all armor stands after the armor stand has been placed:

/entitydata @e[type=armor_stand,r=5] {ShowArms:1}

Example in Java Edition (PC/Mac) 1.8, 1.9 and 1.10

To change the name of all cows to Duke that are within 10 blocks in Minecraft Java Edition (PC/Mac) 1.8, 1.9 and 1.10:

/entitydata @e[type=Cow,r=10] {CustomName:Duke}

To show arms on all armor stands (within 5 blocks) after the armor stand has been placed:

/entitydata @e[type=ArmorStand,r=5] {ShowArms:1}

How to Enter the Command

1. Open the Chat Window

The easiest way to run a command in Minecraft is within the chat window. The game control to open the chat window depends on the version of Minecraft:

  • For Java Edition (PC/Mac), press the key to open the chat window.

2. Type the Command

We will cover examples of how to use the /entitydata command to name all of the cows in a herd or to show arms on an armor stand.

Add a Custom Name to all Cows

Let's start by giving a custom name to all the cows in our herd. In this example, we will name all of our cows Duke that are within 10 blocks of us. This should give a name to all of the cows in our fenced corral.

To do this, we would type the following command in Minecraft Java Edition (PC/Mac) 1.10:

/entitydata @e[type=Cow,r=10] {CustomName:Duke}

Type the command in the chat window. As you are typing, you will see the command appear in the lower left corner of the game window. Press the key to run the command.

entitydata command

Once the cheat has been entered, the names of all cows within 10 blocks of us will be given a custom name of Duke.

completed entitydata command

Now when you position your pointer on any of the cows in your corral, the name of the cow will appear above it. In this case, you should see Duke above the cow's head.

Any cows outside of the 10 block radius and any new cows that spawn will not be named Duke.

Show Arms on an Armor Stand

You can also use the /entitydata command to show arms on an armor stand after the armor stand has been placed.

To do this, we would type in the following command in Minecraft Java Edition (PC/Mac) 1.10:

/entitydata @e[type=ArmorStand,r=5] {ShowArms:1}

Type the command in the chat window and press the key to run the command.

show arms on armor stand

Once the cheat has been entered, the appearance of the armor stand will change.

completed show arms on armor stand

Now all armor stands within 5 blocks of you will have arms showing.

As you can see, the possibilities for the /entitydata command are endless. Give it a try and see what amazing things you can do to the entities in the game.

Congratulations, you have learned how to use the /entitydata command in Minecraft.

Other EntityData Commands

Here are some other entitydata commands that you can try in Minecraft:

Other Game Commands

You can use other commands and cheats in Minecraft such as:

Sours: https://www.digminecraft.com/game_commands/entitydata_command.php

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