Difference between revisions of "Pre-release protocol"

Revision as of 05:25, 26 February 2024

This page documents the changes from the last stable Minecraft release (currently 1.20.4, protocol 765) to the current pre-release (currently 24w03b, protocol Snapshot 172). Note that this page contains bleeding-edge information that may not be completely or correctly documented.

One who wishes to commandeer the merging of this into Protocol when an update is made must be sure to respect any changes that may have occurred to the respective packets there.

ID	Packet name	Documentation
Handshake serverbound
0x00	Handshake	Current	Pre
Login clientbound
0x05	Cookie Request (login)		Pre
Login serverbound
0x04	Cookie Response (login)		Pre
Configuration clientbound
0x00	Cookie Request (configuration)		Pre
~~0x00~~ 0x01	Clientbound Plugin Message (configuration)	Current	(unchanged)
~~0x01~~ 0x02	Disconnect (configuration)	Current	(unchanged)
~~0x02~~ 0x03	Finish Configuration	Current	(unchanged)
~~0x03~~ 0x04	Clientbound Keep Alive (configuration)	Current	(unchanged)
~~0x04~~ 0x05	Ping (configuration)	Current	(unchanged)
~~0x05~~ 0x06	Registry Data	Current	(unchanged)
~~0x06~~ 0x07	Remove Resource Pack (configuration)	Current	(unchanged)
~~0x07~~ 0x08	Add Resource Pack (configuration)	Current	(unchanged)
0x09	Store Cookie (configuration)		Pre
0x0A	Transfer (configuration)		Pre
~~0x08~~ 0x0B	Feature Flags	Current	(unchanged)
~~0x09~~ 0x0C	Update Tags (configuration)	Current	(unchanged)
Configuration serverbound
0x01	Cookie Response (configuration)		Pre
~~0x01~~ 0x02	Serverbound Plugin Message (configuration)	Current	(unchanged)
~~0x02~~ 0x03	Finish Configuration	Current	(unchanged)
~~0x03~~ 0x04	Serverbound Keep Alive (configuration)	Current	(unchanged)
~~0x04~~ 0x05	Pong (configuration)	Current	(unchanged)
~~0x05~~ 0x06	Resource Pack Response (configuration)	Current	(unchanged)
Play clientbound
0x16	Cookie Request (Play)		Pre
~~0x16~~ 0x17	Set Cooldown	Current	(unchanged)
~~0x17~~ 0x18	Chat Suggestions	Current	(unchanged)
~~0x18~~ 0x19	Clientbound Plugin Message (play)	Current	(unchanged)
~~0x19~~ 0x1A	Damage Event	Current	(unchanged)
~~0x1A~~ 0x1B	Delete Message	Current	(unchanged)
~~0x1B~~ 0x1C	Disconnect (play)	Current	(unchanged)
~~0x1C~~ 0x1D	Disguised Chat Message	Current	(unchanged)
~~0x1D~~ 0x1E	Entity Event	Current	(unchanged)
~~0x1E~~ 0x1F	Explosion	Current	(unchanged)
~~0x1F~~ 0x20	Unload Chunk	Current	(unchanged)
~~0x20~~ 0x21	Game Event	Current	(unchanged)
~~0x21~~ 0x22	Open Horse Screen	Current	(unchanged)
~~0x22~~ 0x23	Hurt Animation	Current	(unchanged)
~~0x23~~ 0x24	Initialize World Border	Current	(unchanged)
~~0x24~~ 0x25	Clientbound Keep Alive (play)	Current	(unchanged)
~~0x25~~ 0x26	Chunk Data and Update Light	Current	(unchanged)
~~0x26~~ 0x27	World Event	Current	(unchanged)
~~0x27~~ 0x28	Particle	Current	(unchanged)
~~0x28~~ 0x29	Update Light	Current	(unchanged)
~~0x29~~ 0x2A	Login (play)	Current	(unchanged)
~~0x2A~~ 0x2B	Map Data	Current	(unchanged)
~~0x2B~~ 0x2C	Merchant Offers	Current	(unchanged)
~~0x2C~~ 0x2D	Update Entity Position	Current	(unchanged)
~~0x2D~~ 0x2E	Update Entity Position and Rotation	Current	(unchanged)
~~0x2E~~ 0x2F	Update Entity Rotation	Current	(unchanged)
~~0x2F~~ 0x30	Move Vehicle	Current	(unchanged)
~~0x30~~ 0x31	Open Book	Current	(unchanged)
~~0x31~~ 0x32	Open Screen	Current	(unchanged)
~~0x32~~ 0x33	Open Sign Editor	Current	(unchanged)
~~0x33~~ 0x34	Ping (play)	Current	(unchanged)
~~0x34~~ 0x35	Ping Response (play)	Current	(unchanged)
~~0x35~~ 0x36	Place Ghost Recipe	Current	(unchanged)
~~0x36~~ 0x37	Player Abilities	Current	(unchanged)
~~0x37~~ 0x38	Player Chat Message	Current	(unchanged)
~~0x38~~ 0x39	End Combat	Current	(unchanged)
~~0x39~~ 0x3A	Enter Combat	Current	(unchanged)
~~0x3A~~ 0x3B	Combat Death	Current	(unchanged)
~~0x3B~~ 0x3C	Player Info Remove	Current	(unchanged)
~~0x3C~~ 0x3D	Player Info Update	Current	(unchanged)
~~0x3D~~ 0x3E	Look At	Current	(unchanged)
~~0x3E~~ 0x3F	Synchronize Player Position	Current	(unchanged)
~~0x3F~~ 0x40	Update Recipe Book	Current	(unchanged)
~~0x40~~ 0x41	Remove Entities	Current	(unchanged)
~~0x41~~ 0x42	Remove Entity Effect	Current	(unchanged)
~~0x42~~ 0x43	Reset Score	Current	(unchanged)
~~0x43~~ 0x44	Remove Resource Pack (play)	Current	(unchanged)
~~0x44~~ 0x45	Add Resource Pack (play)	Current	(unchanged)
~~0x45~~ 0x46	Respawn	Current	(unchanged)
~~0x46~~ 0x47	Set Head Rotation	Current	(unchanged)
~~0x47~~ 0x48	Update Section Blocks	Current	(unchanged)
~~0x48~~ 0x49	Select Advancements Tab	Current	(unchanged)
~~0x49~~ 0x4A	Server Data	Current	(unchanged)
~~0x4A~~ 0x4B	Set Action Bar Text	Current	(unchanged)
~~0x4B~~ 0x4C	Set Border Center	Current	(unchanged)
~~0x4C~~ 0x4D	Set Border Lerp Size	Current	(unchanged)
~~0x4D~~ 0x4E	Set Border Size	Current	(unchanged)
~~0x4E~~ 0x4F	Set Border Warning Delay	Current	(unchanged)
~~0x4F~~ 0x50	Set Border Warning Distance	Current	(unchanged)
~~0x50~~ 0x51	Set Camera	Current	(unchanged)
~~0x51~~ 0x52	Set Held Item	Current	(unchanged)
~~0x52~~ 0x53	Set Center Chunk	Current	(unchanged)
~~0x53~~ 0x54	Set Render Distance	Current	(unchanged)
~~0x54~~ 0x55	Set Default Spawn Position	Current	(unchanged)
~~0x55~~ 0x56	Display Objective	Current	(unchanged)
~~0x56~~ 0x57	Set Entity Metadata	Current	(unchanged)
~~0x57~~ 0x58	Link Entities	Current	(unchanged)
~~0x58~~ 0x59	Set Entity Velocity	Current	(unchanged)
~~0x59~~ 0x5A	Set Equipment	Current	(unchanged)
~~0x5A~~ 0x5B	Set Experience	Current	(unchanged)
~~0x5B~~ 0x5C	Set Health	Current	(unchanged)
~~0x5C~~ 0x5D	Update Objectives	Current	(unchanged)
~~0x5D~~ 0x5E	Set Passengers	Current	(unchanged)
~~0x5E~~ 0x5F	Update Teams	Current	(unchanged)
~~0x5F~~ 0x60	Update Score	Current	(unchanged)
~~0x60~~ 0x61	Set Simulation Distance	Current	(unchanged)
~~0x61~~ 0x62	Set Subtitle Text	Current	(unchanged)
~~0x62~~ 0x63	Update Time	Current	(unchanged)
~~0x63~~ 0x64	Set Title Text	Current	(unchanged)
~~0x64~~ 0x65	Set Title Animation Times	Current	(unchanged)
~~0x65~~ 0x66	Entity Sound Effect	Current	(unchanged)
~~0x66~~ 0x67	Sound Effect	Current	(unchanged)
~~0x67~~ 0x68	Start Configuration	Current	(unchanged)
~~0x68~~ 0x69	Stop Sound	Current	(unchanged)
0x6A	Store Cookie (Play)		Pre
~~0x69~~ 0x6B	System Chat Message	Current	(unchanged)
~~0x6A~~ 0x6C	Set Tab List Header And Footer	Current	(unchanged)
~~0x6B~~ 0x6D	Tag Query Response	Current	(unchanged)
~~0x6C~~ 0x6E	Pickup Item	Current	(unchanged)
~~0x6D~~ 0x6F	Teleport Entity	Current	(unchanged)
~~0x6E~~ 0x70	Set Ticking State	Current	(unchanged)
~~0x6F~~ 0x71	Step Tick	Current	(unchanged)
0x72	Transfer (Play)		Pre
~~0x70~~ 0x73	Update Advancements	Current	(unchanged)
~~0x71~~ 0x74	Update Attributes	Current	Pre
~~0x72~~ 0x75	Entity Effect	Current	Pre
~~0x73~~ 0x76	Update Recipes	Current	(unchanged)
~~0x74~~ 0x77	Update Tags (play)	Current	(unchanged)
Play serverbound
0x10	Cookie Response (play)		Pre
~~0x10~~ 0x11	Serverbound Plugin Message (play)	Current	(unchanged)
~~0x11~~ 0x12	Edit Book	Current	(unchanged)
~~0x12~~ 0x13	Query Entity Tag	Current	(unchanged)
~~0x13~~ 0x14	Interact	Current	(unchanged)
~~0x14~~ 0x15	Jigsaw Generate	Current	(unchanged)
~~0x15~~ 0x16	Serverbound Keep Alive (play)	Current	(unchanged)
~~0x16~~ 0x17	Lock Difficulty	Current	(unchanged)
~~0x17~~ 0x18	Set Player Position	Current	(unchanged)
~~0x18~~ 0x19	Set Player Position and Rotation	Current	(unchanged)
~~0x19~~ 0x1A	Set Player Rotation	Current	(unchanged)
~~0x1A~~ 0x1B	Set Player On Ground	Current	(unchanged)
~~0x1B~~ 0x1C	Move Vehicle	Current	(unchanged)
~~0x1C~~ 0x1D	Paddle Boat	Current	(unchanged)
~~0x1D~~ 0x1E	Pick Item	Current	(unchanged)
~~0x1E~~ 0x1F	Ping Request (play)	Current	(unchanged)
~~0x1F~~ 0x20	Place Recipe	Current	(unchanged)
~~0x20~~ 0x21	Player Abilities	Current	(unchanged)
~~0x21~~ 0x22	Player Action	Current	(unchanged)
~~0x22~~ 0x23	Player Command	Current	(unchanged)
~~0x23~~ 0x24	Player Input	Current	(unchanged)
~~0x24~~ 0x25	Pong (play)	Current	(unchanged)
~~0x25~~ 0x26	Change Recipe Book Settings	Current	(unchanged)
~~0x26~~ 0x27	Set Seen Recipe	Current	(unchanged)
~~0x27~~ 0x28	Rename Item	Current	(unchanged)
~~0x28~~ 0x29	Resource Pack Response (play)	Current	(unchanged)
~~0x29~~ 0x2A	Seen Advancements	Current	(unchanged)
~~0x2A~~ 0x2B	Select Trade	Current	(unchanged)
~~0x2B~~ 0x2C	Set Beacon Effect	Current	(unchanged)
~~0x2C~~ 0x2D	Set Held Item	Current	(unchanged)
~~0x2D~~ 0x2E	Program Command Block	Current	(unchanged)
~~0x2E~~ 0x2F	Program Command Block Minecart	Current	(unchanged)
~~0x2F~~ 0x30	Set Creative Mode Slot	Current	(unchanged)
~~0x30~~ 0x31	Program Jigsaw Block	Current	(unchanged)
~~0x31~~ 0x32	Program Structure Block	Current	(unchanged)
~~0x32~~ 0x33	Update Sign	Current	(unchanged)
~~0x33~~ 0x34	Swing Arm	Current	(unchanged)
~~0x34~~ 0x35	Teleport To Entity	Current	(unchanged)
~~0x35~~ 0x36	Use Item On	Current	(unchanged)
~~0x36~~ 0x37	Use Item	Current	(unchanged)

New/modified data types

No changes so far.

Entity Metadata

Type	Name	Value	Notes
0	Byte	Byte
1	VarInt	VarInt
2	VarLong	VarLong
3	Float	Float
4	String	String
5	Text Component	Text Component
6	Optional Text Component	(Boolean, Optional Text Component)	Text Component is present if the Boolean is set to true.
7	Slot	Slot
8	Boolean	Boolean
9	Rotations	(Float, Float, Float)	rotation on x, rotation on y, rotation on z
10	Position	Position
11	Optional Position	(Boolean, Optional Position)	Position is present if the Boolean is set to true.
12	Direction	VarInt Enum	Down = 0, Up = 1, North = 2, South = 3, West = 4, East = 5
13	Optional UUID	(Boolean, Optional UUID)	UUID is present if the Boolean is set to true.
14	Block State	VarInt	An ID in the block state registry.
15	Optional Block State	VarInt	0 for absent (air is unrepresentable); otherwise, an ID in the block state registry.
16	NBT	NBT
17	Particle	(VarInt, Varies)	particle type (an ID in the `minecraft:particle_type` registry), particle data (See Particles.)
18	Villager Data	(VarInt, VarInt, VarInt)	villager type, villager profession, level (See below.)
19	Optional VarInt	VarInt	0 for absent; 1 + actual value otherwise. Used for entity IDs.
20	Pose	VarInt Enum	STANDING = 0, FALL_FLYING = 1, SLEEPING = 2, SWIMMING = 3, SPIN_ATTACK = 4, SNEAKING = 5, LONG_JUMPING = 6, DYING = 7, CROAKING = 8, USING_TONGUE = 9, SITTING = 10, ROARING = 11, SNIFFING = 12, EMERGING = 13, DIGGING = 14, SLIDING = 15, SHOOTING = 16, INHALING = 17
21	Cat Variant	VarInt	An ID in the `minecraft:cat_variant` registry.
22	Frog Variant	VarInt	An ID in the `minecraft:frog_variant` registry.
23	Optional Global Position	(Boolean, Optional Identifier, Optional Position)	dimension identifier, position; only if the Boolean is set to true.
24	Painting Variant	VarInt	An ID in the `minecraft:painting_variant` registry.
25	Sniffer State	VarInt Enum	IDLING = 0, FEELING_HAPPY = 1, SCENTING = 2, SNIFFING = 3, SEARCHING = 4, DIGGING = 5, RISING = 6
26	Armadillo State	VarInt Enum	IDLE = 0, ROLLING = 1, SCARED = 2
26 27	Vector3	(Float, Float, Float)	x, y, z
27 28	Quaternion	(Float, Float, Float, Float)	x, y, z, w

Armadillo

Extends Animal.

Index	Type	Meaning		Default
17	Armadillo State (26)	Armadillo State		IDLE

Block Actions

No changes so far.

Inventories

No changes so far.

Plugin Channels

No changes so far.

Handshake

Serverbound

Handshake

This causes the server to switch into the target state.

Packet ID	State	Bound To	Field Name	Field Type	Notes
0x00	Handshaking	Server	Protocol Version	VarInt	See protocol version numbers (currently 765 in Minecraft 1.20.4).
			Server Address	String (255)	Hostname or IP, e.g. localhost or 127.0.0.1, that was used to connect. The Notchian server does not use this information. Note that SRV records are a simple redirect, e.g. if _minecraft._tcp.example.com points to mc.example.org, users connecting to example.com will provide example.org as server address in addition to connecting to it.
			Server Port	Unsigned Short	Default is 25565. The Notchian server does not use this information.
			Next State	VarInt Enum	1 for Status, 2 for Login, 3 for Transfer.

Status

Clientbound

No changes so far.

Serverbound

No changes so far.

Login

Clientbound

Cookie Request (login)

Requests a cookie that was previously stored.

Packet ID	State	Bound To	Field Name		Field Type		Notes
0x05	Login	Client	Key		Identifier		The identifier of the cookie.

Serverbound

Cookie Response (login)

Response to a Cookie Request (login) from the server. The Notchian server only accepts responses of up to 5 kiB in size.

Packet ID	State	Bound To	Field Name	Field Type	Notes
0x04	Login	Server	Key	Identifier	The identifier of the cookie.
			Has Payload	Boolean	The payload is only present if the cookie exists on the client.
			Payload	Optional ByteArray(5120)	The data of the cookie, if any.

Configuration

Clientbound

Cookie Request (configuration)

Requests a cookie that was previously stored.

Packet ID	State	Bound To	Field Name		Field Type		Notes
0x00	Configuration	Client	Key		Identifier		The identifier of the cookie.

Store Cookie (configuration)

Stores some arbitrary data on the client, which persists between server transfers. The Notchian client only accepts cookies of up to 5 kiB in size.

Packet ID	State	Bound To	Field Name		Field Type		Notes
0x09	Configuration	Client	Key		Identifier		The identifier of the cookie.
0x09	Configuration	Client	Payload		ByteArray(5120)		The data of the cookie.

Transfer (configuration)

Notifies the client that it should transfer to the given server. Cookies previously stored are preserved between server transfers.

Packet ID	State	Bound To	Field Name		Field Type		Notes
0x0A	Configuration	Client	Host		String		The hostname of IP of the server.
0x0A	Configuration	Client	Port		VarInt		The port of the server.

Serverbound

Cookie Response (configuration)

Response to a Cookie Request (configuration) from the server. The Notchian server only accepts responses of up to 5 kiB in size.

Packet ID	State	Bound To	Field Name	Field Type	Notes
0x01	Configuration	Server	Key	Identifier	The identifier of the cookie.
			Has Payload	Boolean	The payload is only present if the cookie exists on the client.
			Payload	Optional ByteArray(5120)	The data of the cookie, if any.

Play

Clientbound

Cookie Request (play)

Requests a cookie that was previously stored.

Packet ID	State	Bound To	Field Name		Field Type		Notes
0x16	Play	Client	Key		Identifier		The identifier of the cookie.

Store Cookie (play)

Stores some arbitrary data on the client, which persists between server transfers. The Notchian client only accepts cookies of up to 5 kiB in size.

Packet ID	State	Bound To	Field Name		Field Type		Notes
0x6A	Play	Client	Key		Identifier		The identifier of the cookie.
0x6A	Play	Client	Payload		ByteArray(5120)		The data of the cookie.

Transfer (play)

Notifies the client that it should transfer to the given server. Cookies previously stored are preserved between server transfers.

Packet ID	State	Bound To	Field Name		Field Type		Notes
0x72	Play	Client	Host		String		The hostname of IP of the server.
0x72	Play	Client	Port		VarInt		The port of the server.

Update Attributes

Sets attributes on the given entity.

Packet ID	State	Bound To	Field Name		Field Type		Notes
0x71	Play	Client	Entity ID		VarInt
			Number Of Properties		VarInt		Number of elements in the following array.
			Property	~~Key~~ Id	Array	~~Identifier~~ VarInt Enum	See below.
				Value		Double	See below.
				Number Of Modifiers		VarInt	Number of elements in the following array.
				Modifiers		Array of Modifier Data	See Attribute#Modifiers. Modifier Data defined below.

Known Key values (see also Attribute#Modifiers):

Id	Key	Default	Min	Max	Label
0	generic.armor	0.0	0.0	30.0	Armor.
1	generic.armor_toughness	0.0	0.0	20.0	Armor Toughness.
2	generic.attack_damage	2.0	0.0	2048.0	Attack Damage.
3	generic.attack_knockback	0.0	0.0	5.0	Attack Knockback.
4	generic.attack_speed	4.0	0.0	1024.0	Attack Speed.
5	generic.block_interaction_range	4.5	0.0	64.0	Block Interaction Range.
6	generic.entity_interaction_range	3.0	0.0	64.0	Entity Interaction Range.
7	generic.flying_speed	0.4	0.0	1024.0	Flying Speed.
8	generic.follow_range	32.0	0.0	2048.0	Follow Range.
9	horse.jump_strength	0.7	0.0	2.0	Jump Strength.
10	generic.knockback_resistance	0.0	0.0	1.0	Knockback Resistance.
11	generic.luck	0.0	-1024.0	1024.0	Luck.
12	generic.max_absorption	0.0	0.0	2048.0	Max Absorption.
13	generic.max_health	20.0	1.0	1024.0	Max Health.
14	generic.movement_speed	0.7	0.0	1024.0	Movement Speed.
15	generic.scale	1.0	0.0625	16.0	Scale.
16	zombie.spawn_reinforcements	0.0	0.0	1.0	Spawn Reinforcements Chance.
17	generic.step_height	0.6	0.0	10.0	Step Height.

Modifier Data structure:

Field Name	Field Type	Notes
UUID	UUID
Amount	Double	May be positive or negative.
Operation	Byte	See below.

The operation controls how the base value of the modifier is changed.

0: Add/subtract amount
1: Add/subtract amount percent of the current value
2: Multiply by amount percent

All of the 0's are applied first, and then the 1's, and then the 2's.

Entity Effect

Packet ID	State	Bound To	Field Name	Field Type	Notes
0x72	Play	Client	Entity ID	VarInt
			Effect ID	VarInt	See this table.
			Amplifier	Byte	Notchian client displays effect level as Amplifier + 1.
			Duration	VarInt	Duration in ticks. (-1 for infinite)
			Flags	Byte	Bit field, see below.
			Has Factor Data	Boolean	Used in DARKNESS effect
			Factor Codec	NBT Tag	See below

	The following information needs to be added to this page:
	What exact effect does the blend bit flag have on the client? What happens if it is used on effects besides DARKNESS?

Within flags:

0x01: Is ambient - was the effect spawned from a beacon? All beacon-generated effects are ambient. Ambient effects use a different icon in the HUD (blue border rather than gray). If all effects on an entity are ambient, the "Is potion effect ambient" living metadata field should be set to true. Usually should not be enabled.
0x02: Show particles - should all particles from this effect be hidden? Effects with particles hidden are not included in the calculation of the effect color, and are not rendered on the HUD (but are still rendered within the inventory). Usually should be enabled.
0x04: Show icon - should the icon be displayed on the client? Usually should be enabled.
0x08: Blend - should the effect's hard-coded blending be applied? Currently only used in the DARKNESS effect to apply extra void fog and adjust the gamma value for lighting.

~~Factor Data~~

Name	Type	Notes
padding_duration	TAG_INT
factor_start	TAG_FLOAT
factor_target	TAG_FLOAT
factor_current	TAG_FLOAT
effect_changed_timestamp	TAG_INT
factor_previous_frame	TAG_FLOAT
had_effect_last_tick	TAG_BOOLEAN

Serverbound

Cookie Response (play)

Response to a Cookie Request (play) from the server. The Notchian server only accepts responses of up to 5 kiB in size.

Packet ID	State	Bound To	Field Name	Field Type	Notes
0x6A	Play	Server	Key	Identifier	The identifier of the cookie.
			Has Payload	Boolean	The payload is only present if the cookie exists on the client.
			Payload	Optional ByteArray(5120)	The data of the cookie, if any.

@@ Line 1: / Line 1: @@
-This page documents the changes from the [[Protocol|last stable Minecraft release]] (currently [[Protocol version numbers|1.13.1, protocol 401]]) to the current pre-release (currently [[Protocol version numbers|1.13.2-pre1, protocol 402]]). Note that this page contains bleeding-edge information that may not be completely or correctly documented.
+This page documents the changes from the [[Protocol|last stable Minecraft release]] (currently [[Protocol version numbers|1.20.4, protocol 765]]) to the current pre-release (currently [[Protocol version numbers|24w03b, protocol {{Snapshot PVN|1073741996}}]]). Note that this page contains bleeding-edge information that may not be completely or correctly documented.
 One who wishes to commandeer the merging of this into [[Protocol]] when an update is made must be sure to respect any changes that may have occurred to the respective packets there.
@@ Line 11: / Line 11: @@
 No changes so far.
-==== [[Slot]] ====
+=== Packets ===
 {| class="wikitable"
-  ! Name
+  ! ID
-  ! Type
+  ! Packet name
-  ! Meaning
+  !colspan="2"| Documentation
-  |- {{added}}
+  |-
-  | Present
+  !colspan="4"| Handshake serverbound
-  | Boolean
+  {{PacketList|0x00|Handshake}}
- | True if the item is present; false if it is empty.
   |-
-  | Item ID
+  !colspan="4"| Login clientbound
-  | {{Change|Short|Optional VarInt}}
+  {{PacketList|0x05|Cookie Request (login)|rel=added}}
- | The {{Minecraft Wiki|Data values#Block IDs|item ID}}. {{change|A value of <code>-1</code> signifies that the slot is empty, and no further data follows.|Not present if present is false.}} Item IDs are distinct from block IDs; see [[Data Generators]] for more information
   |-
-  | Item Count
+  !colspan="4"| Login serverbound
-  | Optional Byte
+  {{PacketList|0x04|Cookie Response (login)|rel=added}}
- | Not present if {{change|Item ID is <code>-1</code>|present is false}}.
   |-
-  | NBT
+  !colspan="4"| Configuration clientbound
-  | Optional NBT
+  {{PacketList|0x00|Cookie Request (configuration)|rel=added}}
-  | Not present if {{change|Item ID is <code>-1</code>|present is false}}. If 0, there is no NBT data, and no further data follows. Otherwise the byte is the start of an NBT blob as shown below:
+ {{PacketList|{{change|0x00|0x01}}|Clientbound Plugin Message (configuration)|pre=unchanged}}
-  |}
+ {{PacketList|{{change|0x01|0x02}}|Disconnect (configuration)|pre=unchanged}}
+ {{PacketList|{{change|0x02|0x03}}|Finish Configuration|pre=unchanged}}
+ {{PacketList|{{change|0x03|0x04}}|Clientbound Keep Alive (configuration)|pre=unchanged}}
+ {{PacketList|{{change|0x04|0x05}}|Ping (configuration)|pre=unchanged}}
+ {{PacketList|{{change|0x05|0x06}}|Registry Data|pre=unchanged}}
+  {{PacketList|{{change|0x06|0x07}}|Remove Resource Pack (configuration)|pre=unchanged}}
+  {{PacketList|{{change|0x07|0x08}}|Add Resource Pack (configuration)|pre=unchanged}}
+ {{PacketList|0x09|Store Cookie (configuration)|rel=added}}
+ {{PacketList|0x0A|Transfer (configuration)|rel=added}}
+ {{PacketList|{{change|0x08|0x0B}}|Feature Flags|pre=unchanged}}
+ {{PacketList|{{change|0x09|0x0C}}|Update Tags (configuration)|pre=unchanged}}
-<pre>
-  COMPOUND <nowiki>''</nowiki>
-    LIST 'StoredEnchantments'
-      COMPOUND
-        SHORT 'id'
-        SHORT 'lvl'
-      END
-      COMPOUND
-        ...
-      END
-      ...
-    END
-    INT 'Unbreakable'
-    ...
-  END
-</pre>
-See [[NBT]] for more information about the NBT format, and {{Minecraft Wiki|Player.dat format#Item structure|here}} for the contained information and its format.  Note that tool durability is included in NBT, among other things.
-=== Packets ===
-{| class="wikitable"
- ! ID
- ! Packet name
- !colspan="2"| Documentation
   |-
-!colspan="4"| Handshaking serverbound
+ !colspan="4"| Configuration serverbound
-{{PacketList|0x00|Handshake}}
+ {{PacketList|0x01|Cookie Response (configuration)|rel=added}}
+ {{PacketList|{{change|0x01|0x02}}|Serverbound Plugin Message (configuration)|pre=unchanged}}
+ {{PacketList|{{change|0x02|0x03}}|Finish Configuration|pre=unchanged}}
+ {{PacketList|{{change|0x03|0x04}}|Serverbound Keep Alive (configuration)|pre=unchanged}}
+ {{PacketList|{{change|0x04|0x05}}|Pong (configuration)|pre=unchanged}}
+ {{PacketList|{{change|0x05|0x06}}|Resource Pack Response (configuration)|pre=unchanged}}
+ |-
+ !colspan="4"| Play clientbound
+ {{PacketList|0x16|Cookie Request (Play)|rel=added}}
+ {{PacketList|{{change|0x16|0x17}}|Set Cooldown|pre=unchanged}}
+ {{PacketList|{{change|0x17|0x18}}|Chat Suggestions|pre=unchanged}}
+ {{PacketList|{{change|0x18|0x19}}|Clientbound Plugin Message (play)|pre=unchanged}}
+ {{PacketList|{{change|0x19|0x1A}}|Damage Event|pre=unchanged}}
+ {{PacketList|{{change|0x1A|0x1B}}|Delete Message|pre=unchanged}}
+ {{PacketList|{{change|0x1B|0x1C}}|Disconnect (play)|pre=unchanged}}
+ {{PacketList|{{change|0x1C|0x1D}}|Disguised Chat Message|pre=unchanged}}
+ {{PacketList|{{change|0x1D|0x1E}}|Entity Event|pre=unchanged}}
+ {{PacketList|{{change|0x1E|0x1F}}|Explosion|pre=unchanged}}
+ {{PacketList|{{change|0x1F|0x20}}|Unload Chunk|pre=unchanged}}
+ {{PacketList|{{change|0x20|0x21}}|Game Event|pre=unchanged}}
+ {{PacketList|{{change|0x21|0x22}}|Open Horse Screen|pre=unchanged}}
+ {{PacketList|{{change|0x22|0x23}}|Hurt Animation|pre=unchanged}}
+ {{PacketList|{{change|0x23|0x24}}|Initialize World Border|pre=unchanged}}
+ {{PacketList|{{change|0x24|0x25}}|Clientbound Keep Alive (play)|pre=unchanged}}
+ {{PacketList|{{change|0x25|0x26}}|Chunk Data and Update Light|pre=unchanged}}
+ {{PacketList|{{change|0x26|0x27}}|World Event|pre=unchanged}}
+ {{PacketList|{{change|0x27|0x28}}|Particle|pre=unchanged}}
+ {{PacketList|{{change|0x28|0x29}}|Update Light|pre=unchanged}}
+ {{PacketList|{{change|0x29|0x2A}}|Login (play)|pre=unchanged}}
+ {{PacketList|{{change|0x2A|0x2B}}|Map Data|pre=unchanged}}
+ {{PacketList|{{change|0x2B|0x2C}}|Merchant Offers|pre=unchanged}}
+ {{PacketList|{{change|0x2C|0x2D}}|Update Entity Position|pre=unchanged}}
+ {{PacketList|{{change|0x2D|0x2E}}|Update Entity Position and Rotation|pre=unchanged}}
+ {{PacketList|{{change|0x2E|0x2F}}|Update Entity Rotation|pre=unchanged}}
+ {{PacketList|{{change|0x2F|0x30}}|Move Vehicle|pre=unchanged}}
+ {{PacketList|{{change|0x30|0x31}}|Open Book|pre=unchanged}}
+ {{PacketList|{{change|0x31|0x32}}|Open Screen|pre=unchanged}}
+ {{PacketList|{{change|0x32|0x33}}|Open Sign Editor|pre=unchanged}}
+ {{PacketList|{{change|0x33|0x34}}|Ping (play)|pre=unchanged}}
+ {{PacketList|{{change|0x34|0x35}}|Ping Response (play)|pre=unchanged}}
+ {{PacketList|{{change|0x35|0x36}}|Place Ghost Recipe|pre=unchanged}}
+ {{PacketList|{{change|0x36|0x37}}|Player Abilities|pre=unchanged}}
+ {{PacketList|{{change|0x37|0x38}}|Player Chat Message|pre=unchanged}}
+ {{PacketList|{{change|0x38|0x39}}|End Combat|pre=unchanged}}
+ {{PacketList|{{change|0x39|0x3A}}|Enter Combat|pre=unchanged}}
+ {{PacketList|{{change|0x3A|0x3B}}|Combat Death|pre=unchanged}}
+ {{PacketList|{{change|0x3B|0x3C}}|Player Info Remove|pre=unchanged}}
+ {{PacketList|{{change|0x3C|0x3D}}|Player Info Update|pre=unchanged}}
+ {{PacketList|{{change|0x3D|0x3E}}|Look At|pre=unchanged}}
+ {{PacketList|{{change|0x3E|0x3F}}|Synchronize Player Position|pre=unchanged}}
+ {{PacketList|{{change|0x3F|0x40}}|Update Recipe Book|pre=unchanged}}
+ {{PacketList|{{change|0x40|0x41}}|Remove Entities|pre=unchanged}}
+ {{PacketList|{{change|0x41|0x42}}|Remove Entity Effect|pre=unchanged}}
+ {{PacketList|{{change|0x42|0x43}}|Reset Score|pre=unchanged}}
+ {{PacketList|{{change|0x43|0x44}}|Remove Resource Pack (play)|pre=unchanged}}
+ {{PacketList|{{change|0x44|0x45}}|Add Resource Pack (play)|pre=unchanged}}
+ {{PacketList|{{change|0x45|0x46}}|Respawn|pre=unchanged}}
+ {{PacketList|{{change|0x46|0x47}}|Set Head Rotation|pre=unchanged}}
+ {{PacketList|{{change|0x47|0x48}}|Update Section Blocks|pre=unchanged}}
+ {{PacketList|{{change|0x48|0x49}}|Select Advancements Tab|pre=unchanged}}
+ {{PacketList|{{change|0x49|0x4A}}|Server Data|pre=unchanged}}
+ {{PacketList|{{change|0x4A|0x4B}}|Set Action Bar Text|pre=unchanged}}
+ {{PacketList|{{change|0x4B|0x4C}}|Set Border Center|pre=unchanged}}
+ {{PacketList|{{change|0x4C|0x4D}}|Set Border Lerp Size|pre=unchanged}}
+ {{PacketList|{{change|0x4D|0x4E}}|Set Border Size|pre=unchanged}}
+ {{PacketList|{{change|0x4E|0x4F}}|Set Border Warning Delay|pre=unchanged}}
+ {{PacketList|{{change|0x4F|0x50}}|Set Border Warning Distance|pre=unchanged}}
+ {{PacketList|{{change|0x50|0x51}}|Set Camera|pre=unchanged}}
+ {{PacketList|{{change|0x51|0x52}}|Set Held Item|pre=unchanged}}
+ {{PacketList|{{change|0x52|0x53}}|Set Center Chunk|pre=unchanged}}
+ {{PacketList|{{change|0x53|0x54}}|Set Render Distance|pre=unchanged}}
+ {{PacketList|{{change|0x54|0x55}}|Set Default Spawn Position|pre=unchanged}}
+ {{PacketList|{{change|0x55|0x56}}|Display Objective|pre=unchanged}}
+ {{PacketList|{{change|0x56|0x57}}|Set Entity Metadata|pre=unchanged}}
+ {{PacketList|{{change|0x57|0x58}}|Link Entities|pre=unchanged}}
+ {{PacketList|{{change|0x58|0x59}}|Set Entity Velocity|pre=unchanged}}
+ {{PacketList|{{change|0x59|0x5A}}|Set Equipment|pre=unchanged}}
+ {{PacketList|{{change|0x5A|0x5B}}|Set Experience|pre=unchanged}}
+ {{PacketList|{{change|0x5B|0x5C}}|Set Health|pre=unchanged}}
+ {{PacketList|{{change|0x5C|0x5D}}|Update Objectives|pre=unchanged}}
+ {{PacketList|{{change|0x5D|0x5E}}|Set Passengers|pre=unchanged}}
+ {{PacketList|{{change|0x5E|0x5F}}|Update Teams|pre=unchanged}}
+ {{PacketList|{{change|0x5F|0x60}}|Update Score|pre=unchanged}}
+ {{PacketList|{{change|0x60|0x61}}|Set Simulation Distance|pre=unchanged}}
+ {{PacketList|{{change|0x61|0x62}}|Set Subtitle Text|pre=unchanged}}
+ {{PacketList|{{change|0x62|0x63}}|Update Time|pre=unchanged}}
+ {{PacketList|{{change|0x63|0x64}}|Set Title Text|pre=unchanged}}
+ {{PacketList|{{change|0x64|0x65}}|Set Title Animation Times|pre=unchanged}}
+ {{PacketList|{{change|0x65|0x66}}|Entity Sound Effect|pre=unchanged}}
+ {{PacketList|{{change|0x66|0x67}}|Sound Effect|pre=unchanged}}
+ {{PacketList|{{change|0x67|0x68}}|Start Configuration|pre=unchanged}}
+ {{PacketList|{{change|0x68|0x69}}|Stop Sound|pre=unchanged}}
+ {{PacketList|0x6A|Store Cookie (Play)|rel=added}}
+ {{PacketList|{{change|0x69|0x6B}}|System Chat Message|pre=unchanged}}
+ {{PacketList|{{change|0x6A|0x6C}}|Set Tab List Header And Footer|pre=unchanged}}
+ {{PacketList|{{change|0x6B|0x6D}}|Tag Query Response|pre=unchanged}}
+ {{PacketList|{{change|0x6C|0x6E}}|Pickup Item|pre=unchanged}}
+ {{PacketList|{{change|0x6D|0x6F}}|Teleport Entity|pre=unchanged}}
+ {{PacketList|{{change|0x6E|0x70}}|Set Ticking State|pre=unchanged}}
+ {{PacketList|{{change|0x6F|0x71}}|Step Tick|pre=unchanged}}
+ {{PacketList|0x72|Transfer (Play)|rel=added}}
+ {{PacketList|{{change|0x70|0x73}}|Update Advancements|pre=unchanged}}
+ {{PacketList|{{change|0x71|0x74}}|Update Attributes}}
+ {{PacketList|{{change|0x72|0x75}}|Entity Effect}}
+ {{PacketList|{{change|0x73|0x76}}|Update Recipes|pre=unchanged}}
+ {{PacketList|{{change|0x74|0x77}}|Update Tags (play)|pre=unchanged}}
+ |-
+ !colspan="4"| Play serverbound
+ {{PacketList|0x10|Cookie Response (play)|rel=added}}
+ {{PacketList|{{change|0x10|0x11}}|Serverbound Plugin Message (play)|pre=unchanged}}
+ {{PacketList|{{change|0x11|0x12}}|Edit Book|pre=unchanged}}
+ {{PacketList|{{change|0x12|0x13}}|Query Entity Tag|pre=unchanged}}
+ {{PacketList|{{change|0x13|0x14}}|Interact|pre=unchanged}}
+ {{PacketList|{{change|0x14|0x15}}|Jigsaw Generate|pre=unchanged}}
+ {{PacketList|{{change|0x15|0x16}}|Serverbound Keep Alive (play)|pre=unchanged}}
+ {{PacketList|{{change|0x16|0x17}}|Lock Difficulty|pre=unchanged}}
+ {{PacketList|{{change|0x17|0x18}}|Set Player Position|pre=unchanged}}
+ {{PacketList|{{change|0x18|0x19}}|Set Player Position and Rotation|pre=unchanged}}
+ {{PacketList|{{change|0x19|0x1A}}|Set Player Rotation|pre=unchanged}}
+ {{PacketList|{{change|0x1A|0x1B}}|Set Player On Ground|pre=unchanged}}
+ {{PacketList|{{change|0x1B|0x1C}}|Move Vehicle|pre=unchanged}}
+ {{PacketList|{{change|0x1C|0x1D}}|Paddle Boat|pre=unchanged}}
+ {{PacketList|{{change|0x1D|0x1E}}|Pick Item|pre=unchanged}}
+ {{PacketList|{{change|0x1E|0x1F}}|Ping Request (play)|pre=unchanged}}
+ {{PacketList|{{change|0x1F|0x20}}|Place Recipe|pre=unchanged}}
+ {{PacketList|{{change|0x20|0x21}}|Player Abilities|pre=unchanged}}
+ {{PacketList|{{change|0x21|0x22}}|Player Action|pre=unchanged}}
+ {{PacketList|{{change|0x22|0x23}}|Player Command|pre=unchanged}}
+ {{PacketList|{{change|0x23|0x24}}|Player Input|pre=unchanged}}
+ {{PacketList|{{change|0x24|0x25}}|Pong (play)|pre=unchanged}}
+ {{PacketList|{{change|0x25|0x26}}|Change Recipe Book Settings|pre=unchanged}}
+ {{PacketList|{{change|0x26|0x27}}|Set Seen Recipe|pre=unchanged}}
+ {{PacketList|{{change|0x27|0x28}}|Rename Item|pre=unchanged}}
+ {{PacketList|{{change|0x28|0x29}}|Resource Pack Response (play)|pre=unchanged}}
+ {{PacketList|{{change|0x29|0x2A}}|Seen Advancements|pre=unchanged}}
+ {{PacketList|{{change|0x2A|0x2B}}|Select Trade|pre=unchanged}}
+ {{PacketList|{{change|0x2B|0x2C}}|Set Beacon Effect|pre=unchanged}}
+ {{PacketList|{{change|0x2C|0x2D}}|Set Held Item|pre=unchanged}}
+ {{PacketList|{{change|0x2D|0x2E}}|Program Command Block|pre=unchanged}}
+ {{PacketList|{{change|0x2E|0x2F}}|Program Command Block Minecart|pre=unchanged}}
+ {{PacketList|{{change|0x2F|0x30}}|Set Creative Mode Slot|pre=unchanged}}
+ {{PacketList|{{change|0x30|0x31}}|Program Jigsaw Block|pre=unchanged}}
+ {{PacketList|{{change|0x31|0x32}}|Program Structure Block|pre=unchanged}}
+ {{PacketList|{{change|0x32|0x33}}|Update Sign|pre=unchanged}}
+ {{PacketList|{{change|0x33|0x34}}|Swing Arm|pre=unchanged}}
+ {{PacketList|{{change|0x34|0x35}}|Teleport To Entity|pre=unchanged}}
+ {{PacketList|{{change|0x35|0x36}}|Use Item On|pre=unchanged}}
+ {{PacketList|{{change|0x36|0x37}}|Use Item|pre=unchanged}}
   |}
@@ Line 71: / Line 200: @@
 == Entity Metadata ==
-No changes so far.
+{{#vardefine: meta_prerelease | 1}}
-== Block Actions ==
+{{Metadata type definition/begin}}
+ ! Value
+ ! Notes
+{{Metadata type definition|Byte}}
+ | {{Type|Byte}}
+ |
+{{Metadata type definition|VarInt}}
+ | {{Type|VarInt}}
+ |
+{{Metadata type definition|VarLong}}
+ | {{Type|VarLong}}
+ |
+{{Metadata type definition|Float}}
+ | {{Type|Float}}
+ |
+{{Metadata type definition|String}}
+ | {{Type|String}}
+ |
+{{Metadata type definition|Text Component}}
+ | {{Type|Text Component}}
+ |
+{{Metadata type definition|Optional Text Component}}
+ | ({{Type|Boolean}}, {{Type|Optional}} {{Type|Text Component}})
+ | Text Component is present if the Boolean is set to true.
+{{Metadata type definition|Slot}}
+ | {{Type|Slot}}
+ |
+{{Metadata type definition|Boolean}}
+ | {{Type|Boolean}}
+ |
+{{Metadata type definition|Rotations}}
+ | ({{Type|Float}}, {{Type|Float}}, {{Type|Float}})
+ | rotation on x, rotation on y, rotation on z
+{{Metadata type definition|Position}}
+ | {{Type|Position}}
+ |
+{{Metadata type definition|Optional Position}}
+ | ({{Type|Boolean}}, {{Type|Optional}} {{Type|Position}})
+ | Position is present if the Boolean is set to true.
+{{Metadata type definition|Direction}}
+ | {{Type|VarInt}} {{Type|Enum}}
+ | Down = 0, Up = 1, North = 2, South = 3, West = 4, East = 5
+{{Metadata type definition|Optional UUID}}
+ | ({{Type|Boolean}}, {{Type|Optional}} {{Type|UUID}})
+ | UUID is present if the Boolean is set to true.
+{{Metadata type definition|Block State}}
+ | {{Type|VarInt}}
+ | An ID in the block state registry.
+{{Metadata type definition|Optional Block State}}
+ | {{Type|VarInt}}
+ | 0 for absent (air is unrepresentable); otherwise, an ID in the block state registry.
+{{Metadata type definition|NBT}}
+ | {{Type|NBT}}
+ |
+{{Metadata type definition|Particle}}
+ | ({{Type|VarInt}}, Varies)
+ | particle type (an ID in the <code>minecraft:particle_type</code> registry), particle data (See [[Particles]].)
+{{Metadata type definition|Villager Data}}
+ | ({{Type|VarInt}}, {{Type|VarInt}}, {{Type|VarInt}})
+ | villager type, villager profession, level (See below.)
+{{Metadata type definition|Optional VarInt}}
+ | {{Type|VarInt}}
+ | 0 for absent; 1 + actual value otherwise. Used for entity IDs.
+{{Metadata type definition|Pose}}
+ | {{Type|VarInt}} {{Type|Enum}}
+ | STANDING = 0, FALL_FLYING = 1, SLEEPING = 2, SWIMMING = 3, SPIN_ATTACK = 4, SNEAKING = 5, LONG_JUMPING = 6, DYING = 7, CROAKING = 8, USING_TONGUE = 9, SITTING = 10, ROARING = 11, SNIFFING = 12, EMERGING = 13, DIGGING = 14{{change||2=, SLIDING = 15, SHOOTING = 16, INHALING = 17}}
+{{Metadata type definition|Cat Variant}}
+ | {{Type|VarInt}}
+ | An ID in the <code>minecraft:cat_variant</code> registry.
+{{Metadata type definition|Frog Variant}}
+ | {{Type|VarInt}}
+ | An ID in the <code>minecraft:frog_variant</code> registry.
+{{Metadata type definition|Optional Global Position}}
+ | ({{Type|Boolean}}, {{Type|Optional}} {{Type|Identifier}}, {{Type|Optional}} {{Type|Position}})
+ | dimension identifier, position; only if the Boolean is set to true.
+{{Metadata type definition|Painting Variant}}
+ | {{Type|VarInt}}
+ | An ID in the <code>minecraft:painting_variant</code> registry.
+{{Metadata type definition|Sniffer State}}
+ | {{Type|VarInt}} {{Type|Enum}}
+ | IDLING = 0, FEELING_HAPPY = 1, SCENTING = 2, SNIFFING = 3, SEARCHING = 4, DIGGING = 5, RISING = 6
+{{Metadata type definition|Armadillo State|rel=added}}
+ | {{Type|VarInt}} {{Type|Enum}}
+ | IDLE = 0, ROLLING = 1, SCARED = 2
+{{Metadata type definition|Vector3}}
+ | ({{Type|Float}}, {{Type|Float}}, {{Type|Float}})
+ | x, y, z
+{{Metadata type definition|Quaternion}}
+ | ({{Type|Float}}, {{Type|Float}}, {{Type|Float}}, {{Type|Float}})
+ | x, y, z, w
+ |}
-No changes so far.
+=== Armadillo ===
-== Play ==
+{{Metadata inherit|Armadillo|inherits=Animal|start_at=17}}
+{| class="wikitable" {{added}}
+ ! Index
+ ! Type
+ !style="width: 250px;" colspan="2"| Meaning
+ ! Default
+ |-
+ | {{Metadata id|added}}
+ | {{Metadata type|Armadillo State}}
+ |colspan="2"| Armadillo State
+ | IDLE
+ |}
-=== Clientbound ===
+== Block Actions ==
 No changes so far.
-=== Serverbound ===
+== Inventories ==
 No changes so far.
-== Handshaking ==
+== Plugin Channels ==
-=== Clientbound ===
+No changes so far.
-There are no clientbound packets in the Handshaking state, since the protocol immediately switches to a different state after the client sends the first packet.
+== Handshake ==
 === Serverbound ===
@@ Line 107: / Line 337: @@
   ! Notes
   |-
-  |rowspan="4"| 0x00
+  | rowspan="4"| 0x00
-  |rowspan="4"| Handshaking
+  | rowspan="4"| Handshaking
-  |rowspan="4"| Server
+  | rowspan="4"| Server
   | Protocol Version
-  | VarInt
+  | [[#Definitions:varint|VarInt]]
-  | See [[protocol version numbers]] (currently {{change|401|402}})
+  | See [[protocol version numbers]] (currently 765 in Minecraft 1.20.4).
   |-
   | Server Address
-  | String
+  | [[#Definitions:string|String]] (255)
-  | Hostname or IP, e.g. localhost or 127.0.0.1, that was used to connect.  The Notchian server does not use this information.
+  | Hostname or IP, e.g. localhost or 127.0.0.1, that was used to connect. The Notchian server does not use this information. Note that SRV records are a simple redirect, e.g. if _minecraft._tcp.example.com points to mc.example.org, users connecting to example.com will provide example.org as server address in addition to connecting to it.
   |-
   | Server Port
-  | Unsigned Short
+  | [[#Definitions:unsigned-short|Unsigned Short]]
-  | Default is 25565.  The Notchian server does not use this information.
+  | Default is 25565. The Notchian server does not use this information.
   |-
   | Next State
-  | VarInt Enum
+  | [[#Definitions:varint|VarInt]] [[#Definitions:enum|Enum]]
-  | 1 for [[#Status|status]], 2 for [[#Login|login]]
+  | 1 for [[#Status|Status]], 2 for [[#Login|Login]]{{change||, 3 for [[#Login|Transfer]]}}.
   |}
@@ Line 141: / Line 371: @@
 === Clientbound ===
-No changes so far.
+==== Cookie Request (login) ====
+Requests a cookie that was previously stored.
+{| class="wikitable" {{added}}
+ ! Packet ID
+ ! State
+ ! Bound To
+ ! colspan="2"| Field Name
+ ! colspan="2"| Field Type
+ ! Notes
+ |-
+ | rowspan="1"| 0x05
+ | rowspan="1"| Login
+ | rowspan="1"| Client
+ | colspan="2"| Key
+ | colspan="2"| Identifier
+ | The identifier of the cookie.
+ |}
+=== Serverbound ===
+==== Cookie Response (login) ====
+Response to a [[#Cookie_Request_(login)|Cookie Request (login)]] from the server. The Notchian server only accepts responses of up to 5 kiB in size.
+{| class="wikitable" {{added}}
+ ! Packet ID
+ ! State
+ ! Bound To
+ ! colspan="2"| Field Name
+ ! colspan="2"| Field Type
+ ! Notes
+ |-
+ | rowspan="3"| 0x04
+ | rowspan="3"| Login
+ | rowspan="3"| Server
+ | colspan="2"| Key
+ | colspan="2"| Identifier
+ | The identifier of the cookie.
+ |-
+ | colspan="2"| Has Payload
+ | colspan="2"| Boolean
+ | The payload is only present if the cookie exists on the client.
+ |-
+ | colspan="2"| Payload
+ | colspan="2"| Optional ByteArray(5120)
+ | The data of the cookie, if any.
+ |}
+== Configuration ==
+=== Clientbound ===
+==== Cookie Request (configuration) ====
+Requests a cookie that was previously stored.
+{| class="wikitable" {{added}}
+ ! Packet ID
+ ! State
+ ! Bound To
+ ! colspan="2"| Field Name
+ ! colspan="2"| Field Type
+ ! Notes
+ |-
+ | rowspan="1"| 0x00
+ | rowspan="1"| Configuration
+ | rowspan="1"| Client
+ | colspan="2"| Key
+ | colspan="2"| Identifier
+ | The identifier of the cookie.
+ |}
+==== Store Cookie (configuration) ====
+Stores some arbitrary data on the client, which persists between server transfers. The Notchian client only accepts cookies of up to 5 kiB in size.
+{| class="wikitable" {{added}}
+ ! Packet ID
+ ! State
+ ! Bound To
+ ! colspan="2"| Field Name
+ ! colspan="2"| Field Type
+ ! Notes
+ |-
+ | rowspan="2"| 0x09
+ | rowspan="2"| Configuration
+ | rowspan="2"| Client
+ | colspan="2"| Key
+ | colspan="2"| Identifier
+ | The identifier of the cookie.
+ |-
+ | colspan="2"| Payload
+ | colspan="2"| ByteArray(5120)
+ | The data of the cookie.
+ |}
+==== Transfer (configuration) ====
+Notifies the client that it should transfer to the given server. Cookies previously stored are preserved between server transfers.
+{| class="wikitable" {{added}}
+ ! Packet ID
+ ! State
+ ! Bound To
+ ! colspan="2"| Field Name
+ ! colspan="2"| Field Type
+ ! Notes
+ |-
+ | rowspan="2"| 0x0A
+ | rowspan="2"| Configuration
+ | rowspan="2"| Client
+ | colspan="2"| Host
+ | colspan="2"| String
+ | The hostname of IP of the server.
+ |-
+ | colspan="2"| Port
+ | colspan="2"| VarInt
+ | The port of the server.
+ |}
+=== Serverbound ===
+==== Cookie Response (configuration) ====
+Response to a [[#Cookie_Request_(configuration)|Cookie Request (configuration)]] from the server. The Notchian server only accepts responses of up to 5 kiB in size.
+{| class="wikitable" {{added}}
+ ! Packet ID
+ ! State
+ ! Bound To
+ ! colspan="2"| Field Name
+ ! colspan="2"| Field Type
+ ! Notes
+ |-
+ | rowspan="3"| 0x01
+ | rowspan="3"| Configuration
+ | rowspan="3"| Server
+ | colspan="2"| Key
+ | colspan="2"| Identifier
+ | The identifier of the cookie.
+ |-
+ | colspan="2"| Has Payload
+ | colspan="2"| Boolean
+ | The payload is only present if the cookie exists on the client.
+ |-
+ | colspan="2"| Payload
+ | colspan="2"| Optional ByteArray(5120)
+ | The data of the cookie, if any.
+ |}
+== Play ==
+=== Clientbound ===
+==== Cookie Request (play) ====
+Requests a cookie that was previously stored.
+{| class="wikitable" {{added}}
+ ! Packet ID
+ ! State
+ ! Bound To
+ ! colspan="2"| Field Name
+ ! colspan="2"| Field Type
+ ! Notes
+ |-
+ | rowspan="1"| 0x16
+ | rowspan="1"| Play
+ | rowspan="1"| Client
+ | colspan="2"| Key
+ | colspan="2"| Identifier
+ | The identifier of the cookie.
+ |}
+==== Store Cookie (play) ====
+Stores some arbitrary data on the client, which persists between server transfers. The Notchian client only accepts cookies of up to 5 kiB in size.
+{| class="wikitable" {{added}}
+ ! Packet ID
+ ! State
+ ! Bound To
+ ! colspan="2"| Field Name
+ ! colspan="2"| Field Type
+ ! Notes
+ |-
+ | rowspan="2"| 0x6A
+ | rowspan="2"| Play
+ | rowspan="2"| Client
+ | colspan="2"| Key
+ | colspan="2"| Identifier
+ | The identifier of the cookie.
+ |-
+ | colspan="2"| Payload
+ | colspan="2"| ByteArray(5120)
+ | The data of the cookie.
+ |}
+==== Transfer (play) ====
+Notifies the client that it should transfer to the given server. Cookies previously stored are preserved between server transfers.
+{| class="wikitable" {{added}}
+ ! Packet ID
+ ! State
+ ! Bound To
+ ! colspan="2"| Field Name
+ ! colspan="2"| Field Type
+ ! Notes
+ |-
+ | rowspan="2"| 0x72
+ | rowspan="2"| Play
+ | rowspan="2"| Client
+ | colspan="2"| Host
+ | colspan="2"| String
+ | The hostname of IP of the server.
+ |-
+ | colspan="2"| Port
+ | colspan="2"| VarInt
+ | The port of the server.
+ |}
+==== Update Attributes ====
+Sets {{Minecraft Wiki|Attribute|attributes}} on the given entity.
+{| class="wikitable"
+ ! Packet ID
+ ! State
+ ! Bound To
+ ! colspan="2"| Field Name
+ ! colspan="2"| Field Type
+ ! Notes
+ |-
+ | rowspan="6"| 0x71
+ | rowspan="6"| Play
+ | rowspan="6"| Client
+ | colspan="2"| Entity ID
+ | colspan="2"| VarInt
+ |
+ |-
+ | colspan="2"| Number Of Properties
+ | colspan="2"| VarInt
+ | Number of elements in the following array.
+ |-
+ | rowspan="4"| Property
+ | {{change|Key|Id}}
+ | rowspan="4"| Array
+ | {{change|Identifier|VarInt Enum}}
+ | See below.
+ |-
+ | Value
+ | Double
+ | See below.
+ |-
+ | Number Of Modifiers
+ | VarInt
+ | Number of elements in the following array.
+ |-
+ | Modifiers
+ | Array of Modifier Data
+ | See {{Minecraft Wiki|Attribute#Modifiers}}. Modifier Data defined below.
+ |}
+Known Key values (see also {{Minecraft Wiki|Attribute#Modifiers}}):
+{| class="wikitable"
+ |-
+ ! Id
+ ! Key
+ ! Default
+ ! Min
+ ! Max
+ ! Label
+ |-
+ | 0
+ | generic.armor
+ | 0.0
+ | 0.0
+ | 30.0
+ | Armor.
+ |-
+ | 1
+ | generic.armor_toughness
+ | 0.0
+ | 0.0
+ | 20.0
+ | Armor Toughness.
+ |-
+ | 2
+ | generic.attack_damage
+ | 2.0
+ | 0.0
+ | 2048.0
+ | Attack Damage.
+ |-
+ | 3
+ | generic.attack_knockback
+ | 0.0
+ | 0.0
+ | 5.0
+ | Attack Knockback.
+ |-
+ | 4
+ | generic.attack_speed
+ | 4.0
+ | 0.0
+ | 1024.0
+ | Attack Speed.
+ |- {{added}}
+ | 5
+ | generic.block_interaction_range
+ | 4.5
+ | 0.0
+ | 64.0
+ | Block Interaction Range.
+ |- {{added}}
+ | 6
+ | generic.entity_interaction_range
+ | 3.0
+ | 0.0
+ | 64.0
+ | Entity Interaction Range.
+ |-
+ | 7
+ | generic.flying_speed
+ | 0.4
+ | 0.0
+ | 1024.0
+ | Flying Speed.
+ |-
+ | 8
+ | generic.follow_range
+ | 32.0
+ | 0.0
+ | 2048.0
+ | Follow Range.
+ |-
+ | 9
+ | horse.jump_strength
+ | 0.7
+ | 0.0
+ | 2.0
+ | Jump Strength.
+ |-
+ | 10
+ | generic.knockback_resistance
+ | 0.0
+ | 0.0
+ | 1.0
+ | Knockback Resistance.
+ |-
+ | 11
+ | generic.luck
+ | 0.0
+ | -1024.0
+ | 1024.0
+ | Luck.
+ |-
+ | 12
+ | generic.max_absorption
+ | 0.0
+ | 0.0
+ | 2048.0
+ | Max Absorption.
+ |-
+ | 13
+ | generic.max_health
+ | 20.0
+ | 1.0
+ | 1024.0
+ | Max Health.
+ |-
+ | 14
+ | generic.movement_speed
+ | 0.7
+ | 0.0
+ | 1024.0
+ | Movement Speed.
+ |- {{added}}
+ | 15
+ | generic.scale
+ | 1.0
+ | 0.0625
+ | 16.0
+ | Scale.
+ |-
+ | 16
+ | zombie.spawn_reinforcements
+ | 0.0
+ | 0.0
+ | 1.0
+ | Spawn Reinforcements Chance.
+ |- {{added}}
+ | 17
+ | generic.step_height
+ | 0.6
+ | 0.0
+ | 10.0
+ | Step Height.
+ |}
+''Modifier Data'' structure:
+{| class="wikitable"
+ |-
+ ! Field Name
+ ! Field Type
+ ! Notes
+ |-
+ | UUID
+ | UUID
+ |
+ |-
+ | Amount
+ | Double
+ | May be positive or negative.
+ |-
+ | Operation
+ | Byte
+ | See below.
+ |}
+The operation controls how the base value of the modifier is changed.
+* 0: Add/subtract amount
+* 1: Add/subtract amount percent of the current value
+* 2: Multiply by amount percent
+All of the 0's are applied first, and then the 1's, and then the 2's.
+==== Entity Effect ====
+{| class="wikitable"
+ ! Packet ID
+ ! State
+ ! Bound To
+ ! Field Name
+ ! Field Type
+ ! Notes
+ |-
+ | rowspan="7"| 0x72
+ | rowspan="7"| Play
+ | rowspan="7"| Client
+ | Entity ID
+ | VarInt
+ |
+ |-
+ | Effect ID
+ | VarInt
+ | See {{Minecraft Wiki|Status effect#Effect list|this table}}.
+ |-
+ | Amplifier
+ | Byte
+ | Notchian client displays effect level as Amplifier + 1.
+ |-
+ | Duration
+ | VarInt
+ | Duration in ticks. (-1 for infinite)
+ |-
+ | Flags
+ | Byte
+ | Bit field, see below.
+ |- {{removed}}
+ | Has Factor Data
+ | Boolean
+ | Used in DARKNESS effect
+ |- {{removed}}
+ | Factor Codec
+ | NBT Tag
+ | See below
+ |}
+{{Need Info|What exact effect does the blend bit flag have on the client? What happens if it is used on effects besides DARKNESS?}}
+Within flags:
+* 0x01: Is ambient - was the effect spawned from a beacon?  All beacon-generated effects are ambient.  Ambient effects use a different icon in the HUD (blue border rather than gray).  If all effects on an entity are ambient, the [[Entity_metadata#Living Entity|"Is potion effect ambient" living metadata field]] should be set to true.  Usually should not be enabled.
+* 0x02: Show particles - should all particles from this effect be hidden?  Effects with particles hidden are not included in the calculation of the effect color, and are not rendered on the HUD (but are still rendered within the inventory).  Usually should be enabled.
+* 0x04: Show icon - should the icon be displayed on the client?  Usually should be enabled.
+* {{change||0x08: Blend - should the effect's hard-coded blending be applied?  Currently only used in the DARKNESS effect to apply extra void fog and adjust the gamma value for lighting.}}
+{{change|Factor Data|}}
+{| class="wikitable" {{removed}}
+ !Name
+ !Type
+ !style="width: 250px;" colspan="2"| Notes
+ |-
+ | padding_duration
+ | TAG_INT
+ |
+ |-
+ | factor_start
+ | TAG_FLOAT
+ |
+ |-
+ | factor_target
+ | TAG_FLOAT
+ |
+ |-
+ | factor_current
+ | TAG_FLOAT
+ |
+ |-
+ | effect_changed_timestamp
+ | TAG_INT
+ |-
+ | factor_previous_frame
+ | TAG_FLOAT
+ |-
+ | had_effect_last_tick
+ | TAG_BOOLEAN
+ |}
 === Serverbound ===
-No changes so far.
+==== Cookie Response (play) ====
+Response to a [[#Cookie_Request_(play)|Cookie Request (play)]] from the server. The Notchian server only accepts responses of up to 5 kiB in size.
+{| class="wikitable" {{added}}
+ ! Packet ID
+ ! State
+ ! Bound To
+ ! colspan="2"| Field Name
+ ! colspan="2"| Field Type
+ ! Notes
+ |-
+ | rowspan="3"| 0x6A
+ | rowspan="3"| Play
+ | rowspan="3"| Server
+ | colspan="2"| Key
+ | colspan="2"| Identifier
+ | The identifier of the cookie.
+ |-
+ | colspan="2"| Has Payload
+ | colspan="2"| Boolean
+ | The payload is only present if the cookie exists on the client.
+ |-
+ | colspan="2"| Payload
+ | colspan="2"| Optional ByteArray(5120)
+ | The data of the cookie, if any.
+ |}
 [[Category:Minecraft Modern]]

Difference between revisions of "Pre-release protocol"

Revision as of 05:25, 26 February 2024

Contents

Contents

Data types

Packets

New/modified data types

Entity Metadata

Armadillo

Block Actions

Inventories

Plugin Channels

Handshake

Serverbound

Handshake

Status

Clientbound

Serverbound

Login

Clientbound

Cookie Request (login)

Serverbound

Cookie Response (login)

Configuration

Clientbound

Cookie Request (configuration)

Store Cookie (configuration)

Transfer (configuration)

Serverbound

Cookie Response (configuration)

Play

Clientbound

Cookie Request (play)

Store Cookie (play)

Transfer (play)

Update Attributes

Entity Effect

Serverbound

Cookie Response (play)

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