Package net.minecraft.network.codec

Interface PacketCodecs

public interface PacketCodecs

A set of pre-defined packet codecs.

See Also:

• PacketCodec

Mappings:

Namespace	Name
official	xq
intermediary	net/minecraft/class_9135
named	net/minecraft/network/codec/PacketCodecs

Field Summary

Fields

Modifier and Type	Field	Description
static final PacketCodec<ByteBuf,Boolean>	BOOL	A codec for a boolean value.
static final PacketCodec<ByteBuf,Byte>	BYTE	A codec for a byte value.
static final PacketCodec<ByteBuf,byte[]>	BYTE_ARRAY	A codec for a byte array.
static final PacketCodec<ByteBuf,Double>	DOUBLE	A codec for a double value.
static final PacketCodec<ByteBuf,Float>	FLOAT	A codec for a float value.
static final PacketCodec<ByteBuf,NbtCompound>	NBT_COMPOUND	A codec for an NBT compound of unlimited size.
static final PacketCodec<ByteBuf,NbtElement>	NBT_ELEMENT	A codec for an NBT element of unlimited size.
static final PacketCodec<ByteBuf,Optional<NbtCompound>>	OPTIONAL_NBT	A codec for an optional NBT compound of up to 2097152 bytes.
static final PacketCodec<ByteBuf,Quaternionf>	QUATERNIONF	A codec for a Quaternionf.
static final PacketCodec<ByteBuf,Short>	SHORT	A codec for a short value.
static final PacketCodec<ByteBuf,String>	STRING	A codec for a string value with maximum length 32767.
static final PacketCodec<ByteBuf,Integer>	VAR_INT	A codec for a variable-length integer (var int) value.
static final PacketCodec<ByteBuf,Long>	VAR_LONG	A codec for a variable-length long (var long) value.
static final PacketCodec<ByteBuf,Vector3f>	VECTOR3F	A codec for a Vector3f.

Method Summary

Static Methods

Modifier and Type	Method	Description
static PacketCodec<ByteBuf,byte[]>	byteArray(int maxLength)	Returns a codec for a byte array with maximum length maxLength.
static <T> PacketCodec<ByteBuf,T>	codec(com.mojang.serialization.Codec<T> codec)	Returns a codec from DataFixerUpper codec codec.
static <B extends ByteBuf, V, C extends Collection<V>> PacketCodec<B,C>	collection(IntFunction<C> factory, PacketCodec<? super B,V> elementCodec)	Returns a codec for a collection of values.
static <T> PacketCodec<ByteBuf,T>	entryOf(IndexedIterable<T> iterable)	Returns a codec for an entry of iterable.
static <T> PacketCodec<ByteBuf,T>	indexed(IntFunction<T> indexToValue, ToIntFunction<T> valueToIndex)	Returns a codec for an indexed value.
static <B extends ByteBuf, K, V, M extends Map<K, V>> PacketCodec<B,M>	map(IntFunction<? extends M> factory, PacketCodec<? super B,K> keyCodec, PacketCodec<? super B,V> valueCodec)	Returns a codec for a map.
static PacketCodec<ByteBuf,NbtElement>	nbt(Supplier<NbtSizeTracker> sizeTracker)	Returns a codec for an NBT element.
static <B extends ByteBuf, V> PacketCodec<B,Optional<V>>	optional(PacketCodec<B,V> codec)	Returns a codec wrapping another codec, the value of which is optional.
private static <T, R> PacketCodec<RegistryByteBuf,R>	registry(RegistryKey<? extends Registry<T>> registry, Function<Registry<T>,IndexedIterable<R>> registryTransformer)
static <T> PacketCodec<RegistryByteBuf,T>	registryCodec(com.mojang.serialization.Codec<T> codec)
static <T> PacketCodec<RegistryByteBuf,RegistryEntry<T>>	registryEntry(RegistryKey<? extends Registry<T>> registry)	Returns a codec for a reference RegistryEntry.
static <T> PacketCodec<RegistryByteBuf,RegistryEntry<T>>	registryEntry(RegistryKey<? extends Registry<T>> registry, PacketCodec<? super RegistryByteBuf,T> directCodec)	Returns a codec for a RegistryEntry.
static <T> PacketCodec<RegistryByteBuf,T>	registryValue(RegistryKey<? extends Registry<T>> registry)	Returns a codec for a Registry-registered value.
static PacketCodec<ByteBuf,String>	string(int maxLength)	Returns a codec for a string value with maximum length maxLength.
static <B extends ByteBuf, V, C extends Collection<V>> PacketCodec.ResultFunction<B,V,C>	toCollection(IntFunction<C> collectionFactory)	Used to make a codec for a collection of values using PacketCodec.collect(net.minecraft.network.codec.PacketCodec.ResultFunction<B, V, O>).
static <B extends ByteBuf, V> PacketCodec.ResultFunction<B,V,List<V>>	toList()	Used to make a codec for a list of values using PacketCodec.collect(net.minecraft.network.codec.PacketCodec.ResultFunction<B, V, O>).

Field Details

BOOL

static final PacketCodec<ByteBuf,Boolean> BOOL

A codec for a boolean value.

See Also:

• ByteBuf.readBoolean()
• ByteBuf.writeBoolean(boolean)

Mappings:

Namespace	Name	Mixin selector
official	a	Lxq;a:Lxs;
intermediary	field_48547	Lnet/minecraft/class_9135;field_48547:Lnet/minecraft/class_9139;
named	BOOL	Lnet/minecraft/network/codec/PacketCodecs;BOOL:Lnet/minecraft/network/codec/PacketCodec;

BYTE

static final PacketCodec<ByteBuf,Byte> BYTE

A codec for a byte value.

See Also:

• ByteBuf.readByte()
• ByteBuf.writeByte(int)

Mappings:

Namespace	Name	Mixin selector
official	b	Lxq;b:Lxs;
intermediary	field_48548	Lnet/minecraft/class_9135;field_48548:Lnet/minecraft/class_9139;
named	BYTE	Lnet/minecraft/network/codec/PacketCodecs;BYTE:Lnet/minecraft/network/codec/PacketCodec;

SHORT

static final PacketCodec<ByteBuf,Short> SHORT

A codec for a short value.

See Also:

• ByteBuf.readShort()
• ByteBuf.writeShort(int)

Mappings:

Namespace	Name	Mixin selector
official	c	Lxq;c:Lxs;
intermediary	field_48549	Lnet/minecraft/class_9135;field_48549:Lnet/minecraft/class_9139;
named	SHORT	Lnet/minecraft/network/codec/PacketCodecs;SHORT:Lnet/minecraft/network/codec/PacketCodec;

VAR_INT

static final PacketCodec<ByteBuf,Integer> VAR_INT

A codec for a variable-length integer (var int) value.

See Also:

• PacketByteBuf.readVarInt()
• PacketByteBuf.writeVarInt(int)

Mappings:

Namespace	Name	Mixin selector
official	d	Lxq;d:Lxs;
intermediary	field_48550	Lnet/minecraft/class_9135;field_48550:Lnet/minecraft/class_9139;
named	VAR_INT	Lnet/minecraft/network/codec/PacketCodecs;VAR_INT:Lnet/minecraft/network/codec/PacketCodec;

VAR_LONG

static final PacketCodec<ByteBuf,Long> VAR_LONG

A codec for a variable-length long (var long) value.

See Also:

• PacketByteBuf.readVarLong()
• PacketByteBuf.writeVarLong(long)

Mappings:

Namespace	Name	Mixin selector
official	e	Lxq;e:Lxs;
intermediary	field_48551	Lnet/minecraft/class_9135;field_48551:Lnet/minecraft/class_9139;
named	VAR_LONG	Lnet/minecraft/network/codec/PacketCodecs;VAR_LONG:Lnet/minecraft/network/codec/PacketCodec;

FLOAT

static final PacketCodec<ByteBuf,Float> FLOAT

A codec for a float value.

See Also:

• ByteBuf.readFloat()
• ByteBuf.writeFloat(float)

Mappings:

Namespace	Name	Mixin selector
official	f	Lxq;f:Lxs;
intermediary	field_48552	Lnet/minecraft/class_9135;field_48552:Lnet/minecraft/class_9139;
named	FLOAT	Lnet/minecraft/network/codec/PacketCodecs;FLOAT:Lnet/minecraft/network/codec/PacketCodec;

DOUBLE

static final PacketCodec<ByteBuf,Double> DOUBLE

A codec for a double value.

See Also:

• ByteBuf.readDouble()
• ByteBuf.writeDouble(double)

Mappings:

Namespace	Name	Mixin selector
official	g	Lxq;g:Lxs;
intermediary	field_48553	Lnet/minecraft/class_9135;field_48553:Lnet/minecraft/class_9139;
named	DOUBLE	Lnet/minecraft/network/codec/PacketCodecs;DOUBLE:Lnet/minecraft/network/codec/PacketCodec;

BYTE_ARRAY

static final PacketCodec<ByteBuf,byte[]> BYTE_ARRAY

A codec for a byte array.

See Also:

• PacketByteBuf.readByteArray()
• PacketByteBuf.writeByteArray(byte[])

Mappings:

Namespace	Name	Mixin selector
official	h	Lxq;h:Lxs;
intermediary	field_48987	Lnet/minecraft/class_9135;field_48987:Lnet/minecraft/class_9139;
named	BYTE_ARRAY	Lnet/minecraft/network/codec/PacketCodecs;BYTE_ARRAY:Lnet/minecraft/network/codec/PacketCodec;

STRING

static final PacketCodec<ByteBuf,String> STRING

A codec for a string value with maximum length 32767.

See Also:

• string(int)
• PacketByteBuf.readString()
• PacketByteBuf.writeString(String)

Mappings:

Namespace	Name	Mixin selector
official	i	Lxq;i:Lxs;
intermediary	field_48554	Lnet/minecraft/class_9135;field_48554:Lnet/minecraft/class_9139;
named	STRING	Lnet/minecraft/network/codec/PacketCodecs;STRING:Lnet/minecraft/network/codec/PacketCodec;

NBT_ELEMENT

static final PacketCodec<ByteBuf,NbtElement> NBT_ELEMENT

A codec for an NBT element of unlimited size.

See Also:

• nbt(java.util.function.Supplier<net.minecraft.nbt.NbtSizeTracker>)
• PacketByteBuf.readNbt(NbtSizeTracker)
• PacketByteBuf.writeNbt(NbtElement)

Mappings:

Namespace	Name	Mixin selector
official	j	Lxq;j:Lxs;
intermediary	field_48555	Lnet/minecraft/class_9135;field_48555:Lnet/minecraft/class_9139;
named	NBT_ELEMENT	Lnet/minecraft/network/codec/PacketCodecs;NBT_ELEMENT:Lnet/minecraft/network/codec/PacketCodec;

NBT_COMPOUND

static final PacketCodec<ByteBuf,NbtCompound> NBT_COMPOUND

A codec for an NBT compound of unlimited size.

See Also:

• nbt(java.util.function.Supplier<net.minecraft.nbt.NbtSizeTracker>)
• PacketByteBuf.readNbt(NbtSizeTracker)
• PacketByteBuf.writeNbt(NbtElement)

Mappings:

Namespace	Name	Mixin selector
official	k	Lxq;k:Lxs;
intermediary	field_48556	Lnet/minecraft/class_9135;field_48556:Lnet/minecraft/class_9139;
named	NBT_COMPOUND	Lnet/minecraft/network/codec/PacketCodecs;NBT_COMPOUND:Lnet/minecraft/network/codec/PacketCodec;

OPTIONAL_NBT

static final PacketCodec<ByteBuf,Optional<NbtCompound>> OPTIONAL_NBT

A codec for an optional NBT compound of up to 2097152 bytes.

See Also:

• nbt(java.util.function.Supplier<net.minecraft.nbt.NbtSizeTracker>)
• PacketByteBuf.readNbt(PacketByteBuf)
• PacketByteBuf.writeNbt(io.netty.buffer.ByteBuf, NbtElement)

Mappings:

Namespace	Name	Mixin selector
official	l	Lxq;l:Lxs;
intermediary	field_48557	Lnet/minecraft/class_9135;field_48557:Lnet/minecraft/class_9139;
named	OPTIONAL_NBT	Lnet/minecraft/network/codec/PacketCodecs;OPTIONAL_NBT:Lnet/minecraft/network/codec/PacketCodec;

VECTOR3F

static final PacketCodec<ByteBuf,Vector3f> VECTOR3F

A codec for a Vector3f.

See Also:

• PacketByteBuf.readVector3f()
• PacketByteBuf.writeVector3f(Vector3f)

Mappings:

Namespace	Name	Mixin selector
official	m	Lxq;m:Lxs;
intermediary	field_48558	Lnet/minecraft/class_9135;field_48558:Lnet/minecraft/class_9139;
named	VECTOR3F	Lnet/minecraft/network/codec/PacketCodecs;VECTOR3F:Lnet/minecraft/network/codec/PacketCodec;

QUATERNIONF

static final PacketCodec<ByteBuf,Quaternionf> QUATERNIONF

A codec for a Quaternionf.

See Also:

• PacketByteBuf.readQuaternionf()
• PacketByteBuf.writeQuaternionf(Quaternionf)

Mappings:

Namespace	Name	Mixin selector
official	n	Lxq;n:Lxs;
intermediary	field_48559	Lnet/minecraft/class_9135;field_48559:Lnet/minecraft/class_9139;
named	QUATERNIONF	Lnet/minecraft/network/codec/PacketCodecs;QUATERNIONF:Lnet/minecraft/network/codec/PacketCodec;

Method Details

byteArray

static PacketCodec<ByteBuf,byte[]> byteArray(int maxLength)

Returns a codec for a byte array with maximum length maxLength.

Returns:

a codec for a byte array with maximum length maxLength

See Also:

• BYTE_ARRAY
• PacketByteBuf.readByteArray(ByteBuf, int)
• PacketByteBuf.writeByteArray(ByteBuf, byte[])

Mappings:

Namespace	Name	Mixin selector
official	a	Lxq;a(I)Lxs;
intermediary	method_56895	Lnet/minecraft/class_9135;method_56895(I)Lnet/minecraft/class_9139;
named	byteArray	Lnet/minecraft/network/codec/PacketCodecs;byteArray(I)Lnet/minecraft/network/codec/PacketCodec;

string

static PacketCodec<ByteBuf,String> string(int maxLength)

Returns a codec for a string value with maximum length maxLength.

Returns:

a codec for a string value with maximum length maxLength

See Also:

• STRING
• PacketByteBuf.readString(int)
• PacketByteBuf.writeString(String, int)

Mappings:

Namespace	Name	Mixin selector
official	b	Lxq;b(I)Lxs;
intermediary	method_56364	Lnet/minecraft/class_9135;method_56364(I)Lnet/minecraft/class_9139;
named	string	Lnet/minecraft/network/codec/PacketCodecs;string(I)Lnet/minecraft/network/codec/PacketCodec;

nbt

static PacketCodec<ByteBuf,NbtElement> nbt(Supplier<NbtSizeTracker> sizeTracker)

Returns a codec for an NBT element.

Returns:

a codec for an NBT element

See Also:

• NBT_ELEMENT
• PacketByteBuf.readNbt(NbtSizeTracker)
• PacketByteBuf.writeNbt(NbtElement)

Mappings:

Namespace	Name	Mixin selector
official	a	Lxq;a(Ljava/util/function/Supplier;)Lxs;
intermediary	method_56378	Lnet/minecraft/class_9135;method_56378(Ljava/util/function/Supplier;)Lnet/minecraft/class_9139;
named	nbt	Lnet/minecraft/network/codec/PacketCodecs;nbt(Ljava/util/function/Supplier;)Lnet/minecraft/network/codec/PacketCodec;

codec

static <T> PacketCodec<ByteBuf,T> codec(com.mojang.serialization.Codec<T> codec)

Returns a codec from DataFixerUpper codec codec.

Internally, the data is serialized as an NBT element of unlimited size.

Returns:

a codec from DataFixerUpper codec codec

Mappings:

Namespace	Name	Mixin selector
official	a	Lxq;a(Lcom/mojang/serialization/Codec;)Lxs;
intermediary	method_56368	Lnet/minecraft/class_9135;method_56368(Lcom/mojang/serialization/Codec;)Lnet/minecraft/class_9139;
named	codec	Lnet/minecraft/network/codec/PacketCodecs;codec(Lcom/mojang/serialization/Codec;)Lnet/minecraft/network/codec/PacketCodec;

registryCodec

static <T> PacketCodec<RegistryByteBuf,T> registryCodec(com.mojang.serialization.Codec<T> codec)

Mappings:

Namespace	Name	Mixin selector
official	b	Lxq;b(Lcom/mojang/serialization/Codec;)Lxs;
intermediary	method_56896	Lnet/minecraft/class_9135;method_56896(Lcom/mojang/serialization/Codec;)Lnet/minecraft/class_9139;
named	registryCodec	Lnet/minecraft/network/codec/PacketCodecs;registryCodec(Lcom/mojang/serialization/Codec;)Lnet/minecraft/network/codec/PacketCodec;

optional

static <B extends ByteBuf,
V>
PacketCodec<B,Optional<V>> optional(PacketCodec<B,V> codec)

Returns a codec wrapping another codec, the value of which is optional.

This can be used with PacketCodec.collect(net.minecraft.network.codec.PacketCodec.ResultFunction<B, V, O>) like codec.collect(PacketCodecs::optional).

Returns:

a codec wrapping another codec, the value of which is optional

See Also:

• PacketByteBuf.readOptional(net.minecraft.network.codec.PacketDecoder<? super net.minecraft.network.PacketByteBuf, T>)
• PacketByteBuf.writeOptional(java.util.Optional<T>, net.minecraft.network.codec.PacketEncoder<? super net.minecraft.network.PacketByteBuf, T>)

Mappings:

Namespace	Name	Mixin selector
official	a	Lxq;a(Lxs;)Lxs;
intermediary	method_56382	Lnet/minecraft/class_9135;method_56382(Lnet/minecraft/class_9139;)Lnet/minecraft/class_9139;
named	optional	Lnet/minecraft/network/codec/PacketCodecs;optional(Lnet/minecraft/network/codec/PacketCodec;)Lnet/minecraft/network/codec/PacketCodec;

collection

static <B extends ByteBuf,
V,
C extends Collection<V>>
PacketCodec<B,C> collection(IntFunction<C> factory,
 PacketCodec<? super B,V> elementCodec)

Returns a codec for a collection of values.

Parameters:

factory - a function that, given the collection's size, returns a new empty collection

elementCodec - the codec of the collection's elements

Returns:

a codec for a collection of values

See Also:

• PacketByteBuf.readCollection(java.util.function.IntFunction<C>, net.minecraft.network.codec.PacketDecoder<? super net.minecraft.network.PacketByteBuf, T>)
• PacketByteBuf.writeCollection(java.util.Collection<T>, net.minecraft.network.codec.PacketEncoder<? super net.minecraft.network.PacketByteBuf, T>)

Mappings:

Namespace	Name	Mixin selector
official	a	Lxq;a(Ljava/util/function/IntFunction;Lxs;)Lxs;
intermediary	method_56376	Lnet/minecraft/class_9135;method_56376(Ljava/util/function/IntFunction;Lnet/minecraft/class_9139;)Lnet/minecraft/class_9139;
named	collection	Lnet/minecraft/network/codec/PacketCodecs;collection(Ljava/util/function/IntFunction;Lnet/minecraft/network/codec/PacketCodec;)Lnet/minecraft/network/codec/PacketCodec;

toCollection

static <B extends ByteBuf,
V,
C extends Collection<V>>
PacketCodec.ResultFunction<B,V,C> toCollection(IntFunction<C> collectionFactory)

Used to make a codec for a collection of values using PacketCodec.collect(net.minecraft.network.codec.PacketCodec.ResultFunction<B, V, O>).

For example, to make a codec for a set of values, write codec.collect(PacketCodecs.toCollection(HashSet::new)).

Parameters:

collectionFactory - a function that, given the collection's size, returns a new empty collection

See Also:

• toList()

Mappings:

Namespace	Name	Mixin selector
official	a	Lxq;a(Ljava/util/function/IntFunction;)Lxs$a;
intermediary	method_56374	Lnet/minecraft/class_9135;method_56374(Ljava/util/function/IntFunction;)Lnet/minecraft/class_9139$class_9140;
named	toCollection	Lnet/minecraft/network/codec/PacketCodecs;toCollection(Ljava/util/function/IntFunction;)Lnet/minecraft/network/codec/PacketCodec$ResultFunction;

toList

static <B extends ByteBuf,
V>
PacketCodec.ResultFunction<B,V,List<V>> toList()

Used to make a codec for a list of values using PacketCodec.collect(net.minecraft.network.codec.PacketCodec.ResultFunction<B, V, O>). This creates an ArrayList, so the decoded result can be modified.

For example, to make a codec for a list of values, write codec.collect(PacketCodecs.toList()).

See Also:

• toCollection(java.util.function.IntFunction<C>)

Mappings:

Namespace	Name	Mixin selector
official	a	Lxq;a()Lxs$a;
intermediary	method_56363	Lnet/minecraft/class_9135;method_56363()Lnet/minecraft/class_9139$class_9140;
named	toList	Lnet/minecraft/network/codec/PacketCodecs;toList()Lnet/minecraft/network/codec/PacketCodec$ResultFunction;

map

static <B extends ByteBuf,
K,
V,
M extends Map<K,
V>>
PacketCodec<B,M> map(IntFunction<? extends M> factory,
 PacketCodec<? super B,K> keyCodec,
 PacketCodec<? super B,V> valueCodec)

Returns a codec for a map.

Parameters:

factory - a function that, given the map's size, returns a new empty map

keyCodec - the codec for the map's keys

valueCodec - the codec for the map's values

Returns:

a codec for a map

See Also:

• PacketByteBuf.readMap(IntFunction, PacketDecoder, PacketDecoder)
• PacketByteBuf.writeMap(java.util.Map, PacketEncoder, PacketEncoder)

Mappings:

Namespace	Name	Mixin selector
official	a	Lxq;a(Ljava/util/function/IntFunction;Lxs;Lxs;)Lxs;
intermediary	method_56377	Lnet/minecraft/class_9135;method_56377(Ljava/util/function/IntFunction;Lnet/minecraft/class_9139;Lnet/minecraft/class_9139;)Lnet/minecraft/class_9139;
named	map	Lnet/minecraft/network/codec/PacketCodecs;map(Ljava/util/function/IntFunction;Lnet/minecraft/network/codec/PacketCodec;Lnet/minecraft/network/codec/PacketCodec;)Lnet/minecraft/network/codec/PacketCodec;

indexed

static <T> PacketCodec<ByteBuf,T> indexed(IntFunction<T> indexToValue,
 ToIntFunction<T> valueToIndex)

Returns a codec for an indexed value.

An example of an indexed value is an enum.

Parameters:

indexToValue - a function that gets a value from its index

valueToIndex - a function that gets a value's index

Returns:

a codec for an indexed value

See Also:

• ValueLists
• PacketByteBuf.encode(ToIntFunction, Object)
• PacketByteBuf.decode(IntFunction)

Mappings:

Namespace	Name	Mixin selector
official	a	Lxq;a(Ljava/util/function/IntFunction;Ljava/util/function/ToIntFunction;)Lxs;
intermediary	method_56375	Lnet/minecraft/class_9135;method_56375(Ljava/util/function/IntFunction;Ljava/util/function/ToIntFunction;)Lnet/minecraft/class_9139;
named	indexed	Lnet/minecraft/network/codec/PacketCodecs;indexed(Ljava/util/function/IntFunction;Ljava/util/function/ToIntFunction;)Lnet/minecraft/network/codec/PacketCodec;

entryOf

static <T> PacketCodec<ByteBuf,T> entryOf(IndexedIterable<T> iterable)

Returns a codec for an entry of iterable.

Returns:

a codec for an entry of iterable

See Also:

• indexed(java.util.function.IntFunction<T>, java.util.function.ToIntFunction<T>)

Mappings:

Namespace	Name	Mixin selector
official	a	Lxq;a(Liq;)Lxs;
intermediary	method_56371	Lnet/minecraft/class_9135;method_56371(Lnet/minecraft/class_2359;)Lnet/minecraft/class_9139;
named	entryOf	Lnet/minecraft/network/codec/PacketCodecs;entryOf(Lnet/minecraft/util/collection/IndexedIterable;)Lnet/minecraft/network/codec/PacketCodec;

registry

private static <T,
R>
PacketCodec<RegistryByteBuf,R> registry(RegistryKey<? extends Registry<T>> registry,
 Function<Registry<T>,IndexedIterable<R>> registryTransformer)

Mappings:

Namespace	Name	Mixin selector
official	a	Lxq;a(Lajg;Ljava/util/function/Function;)Lxs;
intermediary	method_56366	Lnet/minecraft/class_9135;method_56366(Lnet/minecraft/class_5321;Ljava/util/function/Function;)Lnet/minecraft/class_9139;
named	registry	Lnet/minecraft/network/codec/PacketCodecs;registry(Lnet/minecraft/registry/RegistryKey;Ljava/util/function/Function;)Lnet/minecraft/network/codec/PacketCodec;

registryValue

static <T> PacketCodec<RegistryByteBuf,T> registryValue(RegistryKey<? extends Registry<T>> registry)

Returns a codec for a Registry-registered value.

This codec only works with RegistryByteBuf, used during the play phase. Consider using entryOf(net.minecraft.util.collection.IndexedIterable<T>) for encoding a value of a static registry during login or configuration phases.

Returns:

a codec for a Registry-registered value

See Also:

• entryOf(net.minecraft.util.collection.IndexedIterable<T>)

Implementation Note:

The value is serialized as the corresponding raw ID (as a var int).

Mappings:

Namespace	Name	Mixin selector
official	a	Lxq;a(Lajg;)Lxs;
intermediary	method_56365	Lnet/minecraft/class_9135;method_56365(Lnet/minecraft/class_5321;)Lnet/minecraft/class_9139;
named	registryValue	Lnet/minecraft/network/codec/PacketCodecs;registryValue(Lnet/minecraft/registry/RegistryKey;)Lnet/minecraft/network/codec/PacketCodec;

registryEntry

static <T>
PacketCodec<RegistryByteBuf,RegistryEntry<T>> registryEntry(RegistryKey<? extends Registry<T>> registry)

Returns a codec for a reference RegistryEntry.

This codec only works with RegistryByteBuf, used during the play phase. Consider using entryOf(net.minecraft.util.collection.IndexedIterable<T>) for encoding a value of a static registry during login or configuration phases.

Returns:

a codec for a reference RegistryEntry

See Also:

• registryValue(net.minecraft.registry.RegistryKey<? extends net.minecraft.registry.Registry<T>>)
• registryEntry(RegistryKey, PacketCodec)

Implementation Note:

The value is serialized as the corresponding raw ID (as a var int). This does not handle direct (unregistered) entries.

Mappings:

Namespace	Name	Mixin selector
official	b	Lxq;b(Lajg;)Lxs;
intermediary	method_56383	Lnet/minecraft/class_9135;method_56383(Lnet/minecraft/class_5321;)Lnet/minecraft/class_9139;
named	registryEntry	Lnet/minecraft/network/codec/PacketCodecs;registryEntry(Lnet/minecraft/registry/RegistryKey;)Lnet/minecraft/network/codec/PacketCodec;

registryEntry

static <T>
PacketCodec<RegistryByteBuf,RegistryEntry<T>> registryEntry(RegistryKey<? extends Registry<T>> registry,
 PacketCodec<? super RegistryByteBuf,T> directCodec)

Returns a codec for a RegistryEntry.

This codec only works with RegistryByteBuf, used during the play phase. Consider using entryOf(net.minecraft.util.collection.IndexedIterable<T>) for encoding a value of a static registry during login or configuration phases.

Returns:

a codec for a RegistryEntry

See Also:

• registryValue(net.minecraft.registry.RegistryKey<? extends net.minecraft.registry.Registry<T>>)
• registryEntry(RegistryKey)

Implementation Note:

If the entry is a reference entry, the value is serialized as the corresponding raw ID (as a var int). If it is a direct entry, it is encoded using directCodec.

Mappings:

Namespace	Name	Mixin selector
official	a	Lxq;a(Lajg;Lxs;)Lxs;
intermediary	method_56367	Lnet/minecraft/class_9135;method_56367(Lnet/minecraft/class_5321;Lnet/minecraft/class_9139;)Lnet/minecraft/class_9139;
named	registryEntry	Lnet/minecraft/network/codec/PacketCodecs;registryEntry(Lnet/minecraft/registry/RegistryKey;Lnet/minecraft/network/codec/PacketCodec;)Lnet/minecraft/network/codec/PacketCodec;