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|1.16.5, protocol 754]]) to the current pre-release (currently [[Protocol version numbers|21w07a, protocol {{Snapshot PVN|1073741839}}]]). 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 18: / Line 18: @@
   !colspan="2"| Documentation
   |-
-!colspan="4"| Play clientbound
+ !colspan="4"| Handshake serverbound
-{{PacketList|0x05|Sculk Vibration Signal|rel=added}}
+ {{PacketList|0x00|Handshake}}
-{{PacketList|{{change|0x05|0x06}}|Entity Animation (clientbound)|pre=unchanged}}
-{{PacketList|{{change|0x06|0x07}}|Statistics|pre=unchanged}}
-{{PacketList|{{change|0x07|0x08}}|Acknowledge Player Digging|pre=unchanged}}
-{{PacketList|{{change|0x08|0x09}}|Block Break Animation|pre=unchanged}}
-{{PacketList|{{change|0x09|0x0A}}|Block Entity Data|pre=unchanged}}
-{{PacketList|{{change|0x0A|0x0B}}|Block Action|pre=unchanged}}
-{{PacketList|{{change|0x0B|0x0C}}|Block Change|pre=unchanged}}
-{{PacketList|{{change|0x0C|0x0D}}|Boss Bar|pre=unchanged}}
-{{PacketList|{{change|0x0D|0x0E}}|Server Difficulty|pre=unchanged}}
-{{PacketList|{{change|0x0E|0x0F}}|Chat Message (clientbound)|pre=unchanged}}
-{{PacketList|0x10|Clear Titles|rel=added}}
-{{PacketList|{{change|0x0F|0x11}}|Tab-Complete (clientbound)|pre=unchanged}}
-{{PacketList|{{change|0x10|0x12}}|Declare Commands|pre=unchanged}}
-{{PacketList|0x11|Window Confirmation (clientbound)|pre=removed}}
-{{PacketList|{{change|0x12|0x13}}|Close Window (clientbound)|pre=unchanged}}
-{{PacketList|{{change|0x13|0x14}}|Window Items|pre=unchanged}}
-{{PacketList|{{change|0x14|0x15}}|Window Property|pre=unchanged}}
-{{PacketList|{{change|0x15|0x16}}|Set Slot|pre=unchanged}}
-{{PacketList|{{change|0x16|0x17}}|Set Cooldown|pre=unchanged}}
-{{PacketList|{{change|0x17|0x18}}|Plugin Message (clientbound)|pre=unchanged}}
-{{PacketList|{{change|0x18|0x19}}|Named Sound Effect|pre=unchanged}}
-{{PacketList|{{change|0x19|0x1A}}|Disconnect (play)|pre=unchanged}}
-{{PacketList|{{change|0x1A|0x1B}}|Entity Status|pre=unchanged}}
-{{PacketList|{{change|0x1B|0x1C}}|Explosion}}
-{{PacketList|{{change|0x1C|0x1D}}|Unload Chunk|pre=unchanged}}
-{{PacketList|{{change|0x1D|0x1E}}|Change Game State|pre=unchanged}}
-{{PacketList|{{change|0x1E|0x1F}}|Open Horse Window|pre=unchanged}}
-{{PacketList|0x20|Initialize World Border|rel=added}}
-{{PacketList|{{change|0x1F|0x21}}|Keep Alive (clientbound)|pre=unchanged}}
-{{PacketList|{{change|0x20|0x22}}|Chunk Data}}
-{{PacketList|{{change|0x21|0x23}}|Effect|pre=unchanged}}
-{{PacketList|{{change|0x22|0x24}}|Particle|pre=unchanged}}
-{{PacketList|{{change|0x23|0x25}}|Update Light}}
-{{PacketList|{{change|0x24|0x26}}|Join Game}}
-{{PacketList|{{change|0x25|0x27}}|Map Data}}
-{{PacketList|{{change|0x26|0x28}}|Trade List|pre=unchanged}}
-{{PacketList|{{change|0x27|0x29}}|Entity Position|pre=unchanged}}
-{{PacketList|{{change|0x28|0x2A}}|Entity Position and Rotation|pre=unchanged}}
-{{PacketList|{{change|0x29|0x2B}}|Entity Rotation|pre=unchanged}}
-{{PacketList|0x2A|Entity Movement|pre=removed}}
-{{PacketList|{{change|0x2B|0x2C}}|Vehicle Move (clientbound)|pre=unchanged}}
-{{PacketList|{{change|0x2C|0x2D}}|Open Book|pre=unchanged}}
-{{PacketList|{{change|0x2D|0x2E}}|Open Window|pre=unchanged}}
-{{PacketList|{{change|0x2E|0x2F}}|Open Sign Editor|pre=unchanged}}
-{{PacketList|0x30|Ping|rel=added}}
-{{PacketList|{{change|0x2F|0x31}}|Craft Recipe Response|pre=unchanged}}
-{{PacketList|{{change|0x30|0x32}}|Player Abilities (clientbound)|pre=unchanged}}
-{{PacketList|0x31|Combat Event|pre=removed}}
-{{PacketList|0x33|End Combat Event|rel=added}}
-{{PacketList|0x34|Enter Combat Event|rel=added}}
-{{PacketList|0x35|Death Combat Event|rel=added}}
-{{PacketList|{{change|0x32|0x36}}|Player Info|pre=unchanged}}
-{{PacketList|{{change|0x33|0x37}}|Face Player|pre=unchanged}}
-{{PacketList|0x36|Destroy Entities|pre=removed}}
-{{PacketList|{{change|0x34|0x38}}|Player Position And Look (clientbound)}}
-{{PacketList|{{change|0x35|0x39}}|Unlock Recipes|pre=unchanged}}
-{{PacketList|0x3A|Destroy Entity|rel=added}}
-{{PacketList|{{change|0x37|0x3B}}|Remove Entity Effect|pre=unchanged}}
-{{PacketList|{{change|0x38|0x3C}}|Resource Pack Send}}
-{{PacketList|{{change|0x39|0x3D}}|Respawn|pre=unchanged}}
-{{PacketList|{{change|0x3A|0x3E}}|Entity Head Look|pre=unchanged}}
-{{PacketList|{{change|0x3B|0x3F}}|Multi Block Change|pre=unchanged}}
-{{PacketList|{{change|0x3C|0x40}}|Select Advancement Tab|pre=unchanged}}
-{{PacketList|0x41|Action Bar|rel=added}}
-{{PacketList|0x42|World Border Center|rel=added}}
-{{PacketList|0x43|World Border Lerp Size|rel=added}}
-{{PacketList|0x44|World Border Size |rel=added}}
-{{PacketList|0x45|World Border Warning Delay|rel=added}}
-{{PacketList|0x46|World Border Warning Reach|rel=added}}
-{{PacketList|{{change|0x3E|0x47}}|Camera|pre=unchanged}}
-{{PacketList|{{change|0x3F|0x48}}|Held Item Change (clientbound)|pre=unchanged}}
-{{PacketList|{{change|0x40|0x49}}|Update View Position|pre=unchanged}}
-{{PacketList|{{change|0x41|0x4A}}|Update View Distance|pre=unchanged}}
-{{PacketList|{{change|0x42|0x4B}}|Spawn Position}}
-{{PacketList|{{change|0x43|0x4C}}|Display Scoreboard|pre=unchanged}}
-{{PacketList|{{change|0x44|0x4D}}|Entity Metadata|pre=unchanged}}
-{{PacketList|{{change|0x45|0x4E}}|Attach Entity|pre=unchanged}}
-{{PacketList|{{change|0x46|0x4F}}|Entity Velocity|pre=unchanged}}
-{{PacketList|{{change|0x47|0x50}}|Entity Equipment|pre=unchanged}}
-{{PacketList|0x4F|Title|pre=removed}}
-{{PacketList|{{change|0x48|0x51}}|Set Experience|pre=unchanged}}
-{{PacketList|{{change|0x49|0x52}}|Update Health|pre=unchanged}}
-{{PacketList|{{change|0x4A|0x53}}|Scoreboard Objective|pre=unchanged}}
-{{PacketList|{{change|0x4B|0x54}}|Set Passengers|pre=unchanged}}
-{{PacketList|{{change|0x4C|0x55}}|Teams|pre=unchanged}}
-{{PacketList|{{change|0x4D|0x56}}|Update Score|pre=unchanged}}
-{{PacketList|0x57|Set Title SubTitle|rel=added}}
-{{PacketList|{{change|0x4E|0x58}}|Time Update|pre=unchanged}}
-{{PacketList|0x59|Set Title Text|rel=added}}
-{{PacketList|0x5A|Set Title Time|rel=added}}
-{{PacketList|{{change|0x50|0x5B}}|Entity Sound Effect|pre=unchanged}}
-{{PacketList|{{change|0x51|0x5C}}|Sound Effect|pre=unchanged}}
-{{PacketList|{{change|0x52|0x5D}}|Stop Sound|pre=unchanged}}
-{{PacketList|{{change|0x53|0x5E}}|Player List Header And Footer|pre=unchanged}}
-{{PacketList|{{change|0x54|0x5F}}|NBT Query Response|pre=unchanged}}
-{{PacketList|{{change|0x55|0x60}}|Collect Item|pre=unchanged}}
-{{PacketList|{{change|0x56|0x61}}|Entity Teleport|pre=unchanged}}
-{{PacketList|{{change|0x57|0x62}}|Advancements|pre=unchanged}}
-{{PacketList|{{change|0x58|0x63}}|Entity Properties}}
-{{PacketList|{{change|0x59|0x64}}|Entity Effect|pre=unchanged}}
-{{PacketList|{{change|0x5A|0x65}}|Declare Recipes|pre=unchanged}}
-{{PacketList|{{change|0x5B|0x66}}|Tags}}
   |-
-!colspan="4"| Play serverbound
+ !colspan="4"| Login clientbound
-{{PacketList|0x05|Client Settings}}
+ {{PacketList|0x05|Cookie Request (login)|rel=added}}
-{{PacketList|0x07|Window Confirmation (serverbound)|pre=removed}}
-{{PacketList|{{change|0x08|0x07}}|Click Window Button|pre=unchanged}}
-{{PacketList|{{change|0x09|0x08}}|Click Window}}
-{{PacketList|{{change|0x0A|0x09}}|Close Window (serverbound)|pre=unchanged}}
-{{PacketList|{{change|0x0B|0x0A}}|Plugin Message (serverbound)|pre=unchanged}}
-{{PacketList|{{change|0x0C|0x0B}}|Edit Book|pre=unchanged}}
-{{PacketList|{{change|0x0D|0x0C}}|Query Entity NBT|pre=unchanged}}
-{{PacketList|{{change|0x0E|0x0D}}|Interact Entity|pre=unchanged}}
-{{PacketList|{{change|0x0F|0x0E}}|Generate Structure|pre=unchanged}}
-{{PacketList|{{change|0x10|0x0F}}|Keep Alive (serverbound)|pre=unchanged}}
-{{PacketList|{{change|0x11|0x10}}|Lock Difficulty|pre=unchanged}}
-{{PacketList|{{change|0x12|0x11}}|Player Position|pre=unchanged}}
-{{PacketList|{{change|0x13|0x12}}|Player Position And Rotation (serverbound)|pre=unchanged}}
-{{PacketList|{{change|0x14|0x13}}|Player Rotation|pre=unchanged}}
-{{PacketList|{{change|0x15|0x14}}|Player Movement|pre=unchanged}}
-{{PacketList|{{change|0x16|0x15}}|Vehicle Move (serverbound)|pre=unchanged}}
-{{PacketList|{{change|0x17|0x16}}|Steer Boat|pre=unchanged}}
-{{PacketList|{{change|0x18|0x17}}|Pick Item|pre=unchanged}}
-{{PacketList|{{change|0x19|0x18}}|Craft Recipe Request|pre=unchanged}}
-{{PacketList|{{change|0x1A|0x19}}|Player Abilities (serverbound)|pre=unchanged}}
-{{PacketList|{{change|0x1B|0x1A}}|Player Digging|pre=unchanged}}
-{{PacketList|{{change|0x1C|0x1B}}|Entity Action|pre=unchanged}}
-{{PacketList|{{change|0x1D|0x1C}}|Steer Vehicle|pre=unchanged}}
-{{PacketList|0x1D|Pong|rel=added}}
   |-
-!colspan="4"| Handshaking serverbound
+ !colspan="4"| Login serverbound
-{{PacketList|0x00|Handshake}}
+ {{PacketList|0x04|Cookie Response (login)|rel=added}}
+ |-
+ !colspan="4"| Configuration clientbound
+ {{PacketList|0x00|Cookie Request (configuration)|rel=added}}
+ {{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}}
+ |-
+ !colspan="4"| Configuration serverbound
+ {{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 160: / Line 200: @@
 == Entity Metadata ==
-{{#vardefine:meta_prerelease|1}}
+{{#vardefine: meta_prerelease | 1}}
-{{Warning2|Note that other entities have had metadata shifts due to these changes, not shown here.}}
+{{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
+ |}
-=== Entity ===
+=== Armadillo ===
-{{metadata inherit|Entity}}
+{{Metadata inherit|Armadillo|inherits=Animal|start_at=17}}
+{| class="wikitable" {{added}}
-{| class="wikitable"
   ! Index
   ! Type
@@ Line 174: / Line 303: @@
   ! Default
   |-
- |rowspan="9"| {{Metadata id|}}
- |rowspan="9"| Byte
- ! Bit mask
- ! Meaning
- |rowspan="9"| 0
- |-
- | 0x01
- | Is on fire
- |-
- | 0x02
- | Is crouching
- |-
- | 0x04
- | Unused (previously riding)
- |-
- | 0x08
- | Is sprinting
- |-
- | 0x10
- | Is swimming
- |-
- | 0x20
- | Is invisible
- |-
- | 0x40
- | has glowing effect
- |-
- | 0x80
- | Is flying with an {{Minecraft Wiki|elytra}}
- |-
- | {{Metadata id|}}
- | VarInt
- |colspan="2"| Air ticks
- | 300
- |-
- | {{Metadata id|}}
- | OptChat
- |colspan="2"| Custom name
- | empty
- |-
- | {{Metadata id|}}
- | Boolean
- |colspan="2"| Is custom name visible
- | false
- |-
- | {{Metadata id|}}
- | Boolean
- |colspan="2"| Is silent
- | false
- |-
- | {{Metadata id|}}
- | Boolean
- |colspan="2"| Has no gravity
- | false
- |-
- | {{Metadata id|}}
- | Pose
- |colspan="2"| Pose
- | STANDING
- |- {{added}}
   | {{Metadata id|added}}
-  | VarInt
+  | {{Metadata type|Armadillo State}}
-  |colspan="2"| Ticks frozen in powdered snow
+  |colspan="2"| Armadillo State
-  | 0
+  | IDLE
   |}
@@ Line 252: / Line 321: @@
 No changes so far.
-== Play ==
+== Handshake ==
+=== Serverbound ===
-=== Clientbound ===
+==== Handshake ====
-==== Sculk Vibration Signal ====
+This causes the server to switch into the target state.
-{| class="wikitable" {{Added}}
+{| class="wikitable"
   ! Packet ID
   ! State
@@ Line 266: / Line 337: @@
   ! Notes
   |-
-  |rowspan="4"| 0x05
+  | rowspan="4"| 0x00
-  |rowspan="4"| Play
+  | rowspan="4"| Handshaking
-  |rowspan="4"| Client
+  | rowspan="4"| Server
-  | Source Position
+  | Protocol Version
-  | Position
+  | [[#Definitions:varint|VarInt]]
-  | Source position for the vibration.
+  | See [[protocol version numbers]] (currently 765 in Minecraft 1.20.4).
   |-
-  | Destination Identifier
+  | Server Address
-  | Identifier
+  | [[#Definitions:string|String]] (255)
-  | Identifier of the destination codec type.
+  | 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.
   |-
-  | Destination
+  | Server Port
-  | Varies
+  | [[#Definitions:unsigned-short|Unsigned Short]]
-  | Vanilla default destinations are a block position encoded as a [https://wiki.vg/Protocol#Data_types Position] for "block" or an entity id encoded as a VarInt for "entity".
+  | Default is 25565. The Notchian server does not use this information.
   |-
-  | Arrival Ticks
+  | Next State
-  | VarInt
+  | [[#Definitions:varint|VarInt]] [[#Definitions:enum|Enum]]
-  | Ticks for the signal to arrive at the destination.
+  | 1 for [[#Status|Status]], 2 for [[#Login|Login]]{{change||, 3 for [[#Login|Transfer]]}}.
   |}
-This packet shows a permanent particle.
-==== Clear Titles====
+== Status ==
-{| class="wikitable" {{Added}}
+=== Clientbound ===
- ! Packet ID
- ! State
+No changes so far.
- ! Bound To
- ! Field Name
- ! Field Type
- ! Notes
- |- {{ Added }}
- |rowspan="4"| 0x10
- |rowspan="4"| Play
- |rowspan="4"| Client
- |- {{ Added }}
- | Reset
- | Boolean
- |
- |-
- |}
-==== Explosion ====
+=== Serverbound ===
-Sent when an explosion occurs (creepers, TNT, and ghast fireballs).
+No changes so far.
-Each block in Records is set to air. Coordinates for each axis in record is int(X) + record.x
+== Login ==
-{| class="wikitable"
+=== Clientbound ===
- ! Packet ID
- ! State
+==== Cookie Request (login) ====
- ! Bound To
- ! Field Name
- ! Field Type
- ! Notes
- |-
- |rowspan="9"| 0x1B
- |rowspan="9"| Play
- |rowspan="9"| Client
- | X
- | Float
- |
- |-
- | Y
- | Float
- |
- |-
- | Z
- | Float
- |
- |-
- | Strength
- | Float
- | A strength greater than or equal to 2.0 spawns a <code>minecraft:explosion_emitter</code> particle, while a lesser strength spawns a <code>minecraft:explosion</code> particle.
- |-
- | Record Count
- | {{change|Int|VarInt}}
- | Number of elements in the following array.
- |-
- | Records
- | Array of (Byte, Byte, Byte)
- | Each record is 3 signed bytes long; the 3 bytes are the XYZ (respectively) signed offsets of affected blocks.
- |-
- | Player Motion X
- | Float
- | X velocity of the player being pushed by the explosion.
- |-
- | Player Motion Y
- | Float
- | Y velocity of the player being pushed by the explosion.
- |-
- | Player Motion Z
- | Float
- | Z velocity of the player being pushed by the explosion.
- |}
-==== Initialize World Border ====
+Requests a cookie that was previously stored.
-{| class="wikitable"
+{| class="wikitable" {{added}}
   ! Packet ID
   ! State
   ! Bound To
-  ! Field Name
+  ! colspan="2"| Field Name
-  ! Field Type
+  ! colspan="2"| Field Type
   ! Notes
-  |- {{ Added }}
+  |-
-  |rowspan="8"| 0x20
+  | rowspan="1"| 0x05
-  |rowspan="8"| Play
+  | rowspan="1"| Login
-  |rowspan="8"| Client
+  | rowspan="1"| Client
-  | X
+  | colspan="2"| Key
- | Double
+  | colspan="2"| Identifier
-  |
+  | The identifier of the cookie.
- |- {{ Added }}
- | Z
- | Double
- |
- |- {{ Added }}
- | Old Diameter
- | Double
- | Current length of a single side of the world border, in meters.
- |- {{ Added }}
- | New Diameter
- | Double
- | Target length of a single side of the world border, in meters.
- |- {{ Added }}
- | Speed
- | VarLong
-  | Number of real-time ''milli''seconds until New Diameter is reached. It appears that Notchian server does not sync world border speed to game ticks, so it gets out of sync with server lag. If the world border is not moving, this is set to 0.
- |- {{ Added }}
- | Portal Teleport Boundary
- | VarInt
- | Resulting coordinates from a portal teleport are limited to ±value. Usually 29999984.
- |- {{ Added }}
- | Warning Blocks
- | VarInt
- | In meters.
- |- {{ Added }}
- | Warning Time
- | VarInt
- | In seconds as set by <code>/worldborder warning time</code>.
- |- {{ Added }}
   |}
-The Notchian client determines how solid to display the warning by comparing to whichever is higher, the warning distance or whichever is lower, the distance from the current diameter to the target diameter or the place the border will be after warningTime seconds. In pseudocode:
+=== Serverbound ===
-<syntaxhighlight lang="java">
+==== Cookie Response (login) ====
-distance = max(min(resizeSpeed * 1000 * warningTime, abs(targetDiameter - currentDiameter)), warningDistance);
-if (playerDistance < distance) {
-    warning = 1.0 - playerDistance / distance;
-} else {
-    warning = 0.0;
-}
-</syntaxhighlight>
-==== Chunk Data ====
+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.
-{{Main|Chunk Format}}
-{{See also|#Unload Chunk}}
-{{Need Info|How do biomes work now?  The biome change happened at the same time as the seed change, but it's not clear how/if biomes could be computed given that it's not the actual seed...  ([https://www.reddit.com/r/Mojira/comments/e5at6i/a_discussion_for_the_changes_to_how_biomes_are/ /r/mojira discussion] which notes that it seems to be some kind of interpolation, and 3D biomes are only used in the nether)}}
+{| class="wikitable" {{added}}
-The server only sends skylight information for chunk pillars in the {{Minecraft Wiki|Overworld}}, it's up to the client to know in which dimension the player is currently located. You can also infer this information from the primary bitmask and the amount of uncompressed bytes sent.  This packet also sends all block entities in the chunk (though sending them is not required; it is still legal to send them with [[#Update Block Entity|Update Block Entity]] later).
-{| class="wikitable"
   ! Packet ID
   ! State
   ! Bound To
-  ! Field Name
+  ! colspan="2"| Field Name
-  ! Field Type
+  ! colspan="2"| Field Type
   ! Notes
   |-
-  |rowspan="13"| {{change|0x20|0x22}}
+  | rowspan="3"| 0x04
-  |rowspan="13"| Play
+  | rowspan="3"| Login
-  |rowspan="13"| Client
+  | rowspan="3"| Server
-  | Chunk X
+  | colspan="2"| Key
-  | Int
+  | colspan="2"| Identifier
-  | Chunk coordinate (block coordinate divided by 16, rounded down)
+  | The identifier of the cookie.
   |-
-  | Chunk Z
+  | colspan="2"| Has Payload
- | Int
+  | colspan="2"| Boolean
-  | Chunk coordinate (block coordinate divided by 16, rounded down)
+  | The payload is only present if the cookie exists on the client.
- |- {{removed}}
- | Full chunk
- | Boolean
-  | See [[Chunk Format#Full chunk|Chunk Format]]
- |- {{removed}}
- | Primary Bit Mask
- | VarInt
- | Bitmask with bits set to 1 for every 16×16×16 chunk section whose data is included in Data. The least significant bit represents the chunk section at the bottom of the chunk column (from y=0 to y=15).
- |- {{added}}
- | Bit Mask Length
- | VarInt
- | Length of the following array
- |- {{added}}
- | Primary Bit Mask
- | Array of Long
- | BitSet with bits (world height in blocks / 16) set to 1 for every 16×16×16 chunk section whose data is included in Data. The least significant bit represents the chunk section at the bottom of the chunk column (from the lowest y to 15 blocks above).
- |-
- | Heightmaps
- | [[NBT]]
- | Compound containing one long array named <code>MOTION_BLOCKING</code>, which is a heightmap for the highest solid block at each position in the chunk (as a compacted long array with 256 entries at 9 bits per entry totaling 36 longs). The Notchian server also adds a <code>WORLD_SURFACE</code> long array, the purpose of which is unknown, but it's not required for the chunk to be accepted.
- |-
- | Biomes length
- | {{change|Optional|}} VarInt
- | Size of the following array; should always be 1024.  {{change|Not present if full chunk is false.|}}
- |-
- | Biomes
- | {{change|Optional|}} Array of VarInt
- | 1024 biome IDs, ordered by x then z then y, in 4&times;4&times;4 blocks.  {{change|Not present if full chunk is false.|}}  See [[Chunk Format#Biomes|Chunk Format § Biomes]].
- |-
- | Size
- | VarInt
- | Size of Data in bytes
- |-
- | Data
- | Byte array
- | See [[Chunk Format#Data structure|data structure]] in Chunk Format
- |-
- | Number of block entities
- | VarInt
- | Number of elements in the following array
   |-
-  | Block entities
+  | colspan="2"| Payload
-  | Array of [[NBT|NBT Tag]]
+  | colspan="2"| Optional ByteArray(5120)
-  | All block entities in the chunk.  Use the x, y, and z tags in the NBT to determine their positions.
+  | The data of the cookie, if any.
   |}
-Note that the Notchian client requires an [[#Update View Position|Update View Position]] packet when it crosses a chunk border, otherwise it'll only display render distance + 2 chunks around the chunk it spawned in.
+== Configuration ==
-The compacted array format has been adjusted so that individual entries no longer span across multiple longs, affecting the main data array and heightmaps.
+=== Clientbound ===
-New format, 5 bits per block, containing the following references to blocks in a palette (not shown): <span style="border: solid 2px hsl(0, 90%, 60%)">1</span><span style="border: solid 2px hsl(30, 90%, 60%)">2</span><span style="border: solid 2px hsl(60, 90%, 60%)">2</span><span style="border: solid 2px hsl(90, 90%, 60%)">3</span><span style="border: solid 2px hsl(120, 90%, 60%)">4</span><span style="border: solid 2px hsl(150, 90%, 60%)">4</span><span style="border: solid 2px hsl(180, 90%, 60%)">5</span><span style="border: solid 2px hsl(210, 90%, 60%)">6</span><span style="border: solid 2px hsl(240, 90%, 60%)">6</span><span style="border: solid 2px hsl(270, 90%, 60%)">4</span><span style="border: solid 2px hsl(300, 90%, 60%)">8</span><span style="border: solid 2px hsl(330, 90%, 60%)">0</span><span style="border: solid 2px hsl(0, 90%, 30%)">7</span><span style="border: solid 2px hsl(30, 90%, 30%)">4</span><span style="border: solid 2px hsl(60, 90%, 30%)">3</span><span style="border: solid 2px hsl(90, 90%, 30%)">13</span><span style="border: solid 2px hsl(120, 90%, 30%)">15</span><span style="border: solid 2px hsl(150, 90%, 30%)">16</span><span style="border: solid 2px hsl(180, 90%, 30%)">9</span><span style="border: solid 2px hsl(210, 90%, 30%)">14</span><span style="border: solid 2px hsl(240, 90%, 30%)">10</span><span style="border: solid 2px hsl(270, 90%, 30%)">12</span><span style="border: solid 2px hsl(300, 90%, 30%)">0</span><span style="border: solid 2px hsl(330, 90%, 30%)">2</span>
+==== Cookie Request (configuration) ====
-<code>0020863148418841</code> <code><span style="outline: dashed 2px black">0000</span><span style="outline: solid 2px hsl(330, 90%, 60%)">00000</span><span style="outline: solid 2px hsl(300, 90%, 60%)">01000</span><span style="outline: solid 2px hsl(270, 90%, 60%)">00100</span><span style="outline: solid 2px hsl(240, 90%, 60%)">00110</span><span style="outline: solid 2px hsl(210, 90%, 60%)">00110</span><span style="outline: solid 2px hsl(180, 90%, 60%)">00101</span><span style="outline: solid 2px hsl(150, 90%, 60%)">00100</span><span style="outline: solid 2px hsl(120, 90%, 60%)">00100</span><span style="outline: solid 2px hsl(90, 90%, 60%)">00011</span><span style="outline: solid 2px hsl(60, 90%, 60%)">00010</span><span style="outline: solid 2px hsl(30, 90%, 60%)">00010</span><span style="outline: solid 2px hsl(0, 90%, 60%)">00001</span></code><br>
+Requests a cookie that was previously stored.
-<code>01018A7260F68C87</code> <code><span style="outline: dashed 2px black">0000</span><span style="outline: solid 2px hsl(330, 90%, 30%)">00010</span><span style="outline: solid 2px hsl(300, 90%, 30%)">00000</span><span style="outline: solid 2px hsl(270, 90%, 30%)">01100</span><span style="outline: solid 2px hsl(240, 90%, 30%)">01010</span><span style="outline: solid 2px hsl(210, 90%, 30%)">01110</span><span style="outline: solid 2px hsl(180, 90%, 30%)">01001</span><span style="outline: solid 2px hsl(150, 90%, 30%)">10000</span><span style="outline: solid 2px hsl(120, 90%, 30%)">01111</span><span style="outline: solid 2px hsl(90, 90%, 30%)">01101</span><span style="outline: solid 2px hsl(60, 90%, 30%)">00011</span><span style="outline: solid 2px hsl(30, 90%, 30%)">00100</span><span style="outline: solid 2px hsl(0, 90%, 30%)">00111</span></code>
-==== Entity Movement ====
+{| class="wikitable" {{added}}
-This packet may be used to initialize an entity.
-For player entities, either this packet or any move/look packet is sent every game tick. So the meaning of this packet is basically that the entity did not move/look since the last such packet.
-{| class="wikitable"
   ! Packet ID
   ! State
   ! Bound To
-  ! Field Name
+  ! colspan="2"| Field Name
-  ! Field Type
+  ! colspan="2"| Field Type
   ! Notes
-  |- {{removed}}
+  |-
-  | 0x2A
+  | rowspan="1"| 0x00
-  | Play
+  | rowspan="1"| Configuration
-  | Client
+  | rowspan="1"| Client
-  | Entity ID
+  | colspan="2"| Key
-  | VarInt
+  | colspan="2"| Identifier
-  |
+  | The identifier of the cookie.
   |}
-==== Ping ====
+==== Store Cookie (configuration) ====
-Unknown what this packet does just yet, not used by the Notchian server or client.
+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"
+{| class="wikitable" {{added}}
   ! Packet ID
   ! State
   ! Bound To
-  ! Field Name
+  ! colspan="2"| Field Name
-  ! Field Type
+  ! colspan="2"| Field Type
   ! Notes
- |- {{added}}
- | 0x30
- | Play
- | Client
- | ID
- | Int
- |
- |}
-==== Update Light ====
-Updates light levels for a chunk.
-{| class="wikitable"
- ! Packet ID
- ! State
- ! Bound To
- !colspan="2"| Field Name
- !colspan="2"| Field Type
- ! Notes
- |-
- |rowspan="21"| {{change|0x23|0x25}}
- |rowspan="21"| Play
- |rowspan="21"| Client
- |colspan="2"| Chunk X
- |colspan="2"| VarInt
- | Chunk coordinate (block coordinate divided by 16, rounded down)
- |-
- |colspan="2"| Chunk Z
- |colspan="2"| VarInt
- | Chunk coordinate (block coordinate divided by 16, rounded down)
- |-
- |colspan="2"| Trust Edges
- |colspan="2"| Boolean
- | If edges should be trusted for light updates.
- |- {{removed}}
- |colspan="2"| Sky Light Mask
- |colspan="2"| VarInt
- | Mask containing 18 bits, with the lowest bit corresponding to chunk section -1 (in the void, y=-16 to y=-1) and the highest bit for chunk section 16 (above the world, y=256 to y=271)
- |- {{removed}}
- |colspan="2"| Block Light Mask
- |colspan="2"| VarInt
- | Mask containing 18 bits, with the same order as sky light
- |- {{removed}}
- |colspan="2"| Empty Sky Light Mask
- |colspan="2"| VarInt
- | Mask containing 18 bits, which indicates sections that have 0 for all their sky light values.  If a section is set in both this mask and the main sky light mask, it is ignored for this mask and it is included in the sky light arrays (the notchian server does not create such masks).  If it is only set in this mask, it is not included in the sky light arrays.
- |- {{removed}}
- |colspan="2"| Empty Block Light Mask
- |colspan="2"| VarInt
- | Mask containing 18 bits, which indicates sections that have 0 for all their block light values.  If a section is set in both this mask and the main block light mask, it is ignored for this mask and it is included in the block light arrays (the notchian server does not create such masks).  If it is only set in this mask, it is not included in the block light arrays.
- |- {{Added}}
- |colspan="2"| Length 1
- |colspan="2"| VarInt
- | Length of the following array
- |- {{Added}}
- |colspan="2"| Sky Light Mask
- |colspan="2"| Array of Long
- | BitSet containing bits for each sections in the world + 2 (lowest bit 16-1 blocks below min world height, highest 1-16 above max world height)
- |- {{Added}}
- |colspan="2"| Length 2
- |colspan="2"| VarInt
- | Length of the following array
- |- {{Added}}
- |colspan="2"| Block Light Mask
- |colspan="2"| Array of Long
- | BitSet containing bits for each sections in the world + 2, same order as sky light
- |- {{Added}}
- |colspan="2"| Length 3
- |colspan="2"| VarInt
- | Length of the following array
- |- {{Added}}
- |colspan="2"| Empty Sky Light Mask
- |colspan="2"| Array of Long
- | BitSet containing a variable amount of bits (see sky/block light) which indicates sections that have 0 for all their sky light values
- |- {{Added}}
- |colspan="2"| Length 4
- |colspan="2"| VarInt
- | Length of the following array
- |- {{Added}}
- |colspan="2"| Empty Block Light Mask
- |colspan="2"| Array of Long
- | BitSet containing a variable amount of bits (see sky/block light) which indicates sections that have 0 for all their block light values
- |- {{added}}
- |colspan="2"| Sky Light array count
- |colspan="2"| VarInt
- | Number of entries in the following array
   |-
-  |rowspan="2"| Sky Light arrays
+  | rowspan="2"| 0x09
-  | Length
+  | rowspan="2"| Configuration
-  |rowspan="2"| Array
+  | rowspan="2"| Client
-  | VarInt
+  | colspan="2"| Key
-  | Length of the following array in bytes (always 2048)
+ | colspan="2"| Identifier
+  | The identifier of the cookie.
   |-
- | Sky Light array
+  | colspan="2"| Payload
- | Array of 2048 bytes
+  | colspan="2"| ByteArray(5120)
- | There is 1 array for each bit set to true in the sky light mask, starting with the lowest value.  Half a byte per light value.
+  | The data of the cookie.
- |- {{added}}
-  |colspan="2"| Block Light array count
-  |colspan="2"| VarInt
- | Number of entries in the following array
- |-
- |rowspan="2"| Block Light arrays
- | Length
- |rowspan="2"| Array
- | VarInt
- | Length of the following array in bytes (always 2048)
-  |-
- | Block Light array
- | Array of 2048 bytes
- | There is 1 array for each bit set to true in the block light mask, starting with the lowest value.  Half a byte per light value.
   |}
-==== Join Game ====
+==== Transfer (configuration) ====
-See [[Protocol Encryption]] for information on logging in.
+Notifies the client that it should transfer to the given server. Cookies previously stored are preserved between server transfers.
-{| class="wikitable"
+{| class="wikitable" {{added}}
   ! Packet ID
   ! State
   ! Bound To
-  ! Field Name
+  ! colspan="2"| Field Name
-  ! Field Type
+  ! colspan="2"| Field Type
   ! Notes
   |-
-  |rowspan="16"| 0x24
+  | rowspan="2"| 0x0A
-  |rowspan="16"| Play
+  | rowspan="2"| Configuration
-  |rowspan="16"| Client
+  | rowspan="2"| Client
-  | Entity ID
+  | colspan="2"| Host
-  | Int
+  | colspan="2"| String
-  | The player's Entity ID (EID).
+  | The hostname of IP of the server.
   |-
-  | Is hardcore
+  | colspan="2"| Port
- | Boolean
+  | colspan="2"| VarInt
- |
+  | The port of the server.
- |-
- | Gamemode
- | Unsigned Byte
- | 0: Survival, 1: Creative, 2: Adventure, 3: Spectator.
- |-
-  | Previous Gamemode
- | Byte
- | 0: survival, 1: creative, 2: adventure, 3: spectator. The hardcore flag is not included. The previous gamemode. Defaults to -1 if there is no previous gamemode. (More information needed)
- |-
- | World Count
- | VarInt
-  | Size of the following array.
- |-
- | World Names
- | Array of Identifier
- | Identifiers for all worlds on the server.
- |-
- | Dimension Codec
- | [[NBT|NBT Tag Compound]]
- | The full extent of these is still unknown, but the tag represents a dimension and biome registry. See below for the vanilla default.
- |-
- | Dimension
- | [[NBT|NBT Tag Compound]]
- | Valid dimensions are defined per dimension registry sent before this. The structure of this tag is a dimension type (see below).
- |-
- | World Name
- | Identifier
- | Name of the world being spawned into.
- |-
- | Hashed seed
- | Long
- | First 8 bytes of the SHA-256 hash of the world's seed. Used client side for biome noise
- |-
- | Max Players
- | VarInt
- | Was once used by the client to draw the player list, but now is ignored.
- |-
- | View Distance
- | VarInt
- | Render distance (2-32).
- |-
- | Reduced Debug Info
- | Boolean
- | If true, a Notchian client shows reduced information on the {{Minecraft Wiki|debug screen}}.  For servers in development, this should almost always be false.
- |-
- | Enable respawn screen
- | Boolean
- | Set to false when the doImmediateRespawn gamerule is true.
- |-
- | Is Debug
- | Boolean
- | True if the world is a {{Minecraft Wiki|debug mode}} world; debug mode worlds cannot be modified and have predefined blocks.
- |-
- | Is Flat
- | Boolean
- | True if the world is a {{Minecraft Wiki|superflat}} world; flat worlds have different void fog and a horizon at y=0 instead of y=63.
   |}
+=== Serverbound ===
-The '''Dimension Codec''' NBT Tag Compound ([https://gist.githubusercontent.com/BomBardyGamer/c075a7a34b51f2df9d5aabdd2a762f4f/raw/c7352784dfadbca00d2282aeca04ed80081bfb09/dimension_codec.snbt Default value in SNBT]) includes two registries: "minecraft:dimension_type" and "minecraft:worldgen/biome".
+==== Cookie Response (configuration) ====
-{| class="wikitable"
- !Name
- !Type
- !style="width: 250px;" colspan="2"| Notes
- |-
- | minecraft:dimension_type
- | TAG_Compound
- | The dimension type registry (see below).
- |-
- | minecraft:worldgen/biome
- | TAG_Compound
- | The biome registry (see below).
- |}
-Dimension type registry:
-{| class="wikitable"
- !Name
- !Type
- !style="width: 250px;" colspan="2"| Notes
- |-
- | type
- | TAG_String
- | The name of the registry. Always "minecraft:dimension_type".
- |-
- | value
- | TAG_List
- | List of dimension types registry entries (see below).
- |}
-Dimension type registry entry:
-{| class="wikitable"
- !Name
- !Type
- !style="width: 250px;" colspan="2"| Notes
- |-
- | name
- | TAG_String
- | The name of the dimension type (for example, "minecraft:overworld").
- |-
- | id
- | TAG_Int
- | The protocol ID of the dimension (matches the index of the element in the registry list).
- |-
- | element
- | TAG_Compound
- | The dimension type (see below).
- |}
-Dimension type:
-{| class="wikitable"
- ! Name
- ! Type
- !style="width: 250px;" colspan="2"| Meaning
- ! Values
- |-
- | piglin_safe
- | TAG_Byte
- |colspan="2"| Whether piglins shake and transform to zombified piglins.
- | 1: true, 0: false.
- |-
- | natural
- | TAG_Byte
- |colspan="2"| When false, compasses spin randomly. When true, nether portals can spawn zombified piglins.
- | 1: true, 0: false.
- |-
- | ambient_light
- | TAG_Float
- |colspan="2"| How much light the dimension has.
- | 0.0 to 1.0.
- |-
- | fixed_time
- | Optional TAG_Long
- |colspan="2"| If set, the time of the day is the specified value.
- | If set, 0 to 24000.
- |-
- | infiniburn
- | TAG_String
- |colspan="2"| A resource location defining what block tag to use for infiniburn.
- | "" or minecraft resource "minecraft:...".
- |-
- | respawn_anchor_works
- | TAG_Byte
- |colspan="2"| Whether players can charge and use respawn anchors.
- | 1: true, 0: false.
- |-
- | has_skylight
- | TAG_Byte
- |colspan="2"| Whether the dimension has skylight access or not.
- | 1: true, 0: false.
- |-
- | bed_works
- | TAG_Byte
- |colspan="2"| Whether players can use a bed to sleep.
- | 1: true, 0: false.
- |-
- | effects
- | TAG_String
- |colspan="2"| ?
- | "minecraft:overworld", "minecraft:the_nether", "minecraft:the_end" or something else.
- |-
- | has_raids
- | TAG_Byte
- |colspan="2"| Whether players with the Bad Omen effect can cause a raid.
- | 1: true, 0: false.
- |- {{added}}
- | min_y
- | TAG_Int
- |colspan="2"| The minimum Y level.
- |
- |- {{added}}
- | height
- | TAG_Int
- |colspan="2"| The maximum height.
- |
- |-
- | logical_height
- | TAG_Int
- |colspan="2"| The maximum height to which chorus fruits and nether portals can bring players within this dimension.
- | 0-256.
- |-
- | coordinate_scale
- | TAG_Float
- |colspan="2"| The multiplier applied to coordinates when traveling to the dimension.
- | 1: true, 0: false.
- |-
- | ultrawarm
- | TAG_Byte
- |colspan="2"| Whether the dimensions behaves like the nether (water evaporates and sponges dry) or not. Also causes lava to spread thinner.
- | 1: true, 0: false.
- |-
- | has_ceiling
- | TAG_Byte
- |colspan="2"| Whether the dimension has a bedrock ceiling or not. When true, causes lava to spread faster.
- | 1: true, 0: false.
- |}
-Biome registry:
-{| class="wikitable"
- !Name
- !Type
- !style="width: 250px;" colspan="2"| Notes
- |-
- | type
- | TAG_String
- | The name of the registry. Always "minecraft:worldgen/biome".
- |-
- | value
- | TAG_List
- | List of biome registry entries (see below).
- |}
-Biome registry entry:
-{| class="wikitable"
- !Name
- !Type
- !style="width: 250px;" colspan="2"| Notes
- |-
- | name
- | TAG_String
- | The name of the biome (for example, "minecraft:ocean").
- |-
- | id
- | TAG_Int
- | The protocol ID of the biome (matches the index of the element in the registry list).
- |-
- | element
- | TAG_Compound
- | The biome properties (see below).
- |}
-Biome properties:
+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"
+{| class="wikitable" {{added}}
- !colspan="2"|Name
- !colspan="2"|Type
- !style="width: 250px;" colspan="2"| Meaning
- !colspan="2"|Values
- |-
- |colspan="2"|precipitation
- |colspan="2"|TAG_String
- |colspan="2"| The type of precipitation in the biome.
- |colspan="2"|"rain", "snow", or "none".
- |-
- |colspan="2"| depth
- |colspan="2"| TAG_Float
- |colspan="2"| The depth factor of the biome.
- |colspan="2"| The default values vary between 1.5 and -1.8.
- |-
- |colspan="2"| temperature
- |colspan="2"| TAG_Float
- |colspan="2"| The temperature factor of the biome.
- |colspan="2"| The default values vary between 2.0 and -0.5.
- |-
- |colspan="2"| scale
- |colspan="2"| TAG_Float
- |colspan="2"| ?
- |colspan="2"| The default values vary between 1.225 and 0.0.
- |-
- |colspan="2"| downfall
- |colspan="2"| TAG_Float
- |colspan="2"| ?
- |colspan="2"| The default values vary between 1.0 and 0.0.
- |-
- |colspan="2"| category
- |colspan="2"| TAG_String
- |colspan="2"| The category of the biome.
- |colspan="2"| Known values are "ocean", "plains", "desert", "forest", "extreme_hills", "taiga", "swamp", "river", "nether", "the_end", "icy", "mushroom", "beach", "jungle", "mesa", "savanna", and "none".
- |-
- |colspan="2"| temperature_modifier
- |colspan="2"| Optional TAG_String
- |colspan="2"| ?
- |colspan="2"| The only known value is "frozen".
- |-
- |rowspan="11"| effects
- | sky_color
- |rowspan="11"| TAG_Compound
- | TAG_Int
- |colspan="2"| The color of the sky.
- | Example: 8364543, which is #7FA1FF in RGB.
- |-
- | water_fog_color
- | TAG_Int
- |colspan="2"| Possibly the tint color when swimming.
- | Example: 8364543, which is #7FA1FF in RGB.
- |-
- | fog_color
- | TAG_Int
- |colspan="2"| Possibly the color of the fog effect when looking past the view distance.
- | Example: 8364543, which is #7FA1FF in RGB.
- |-
- | water_color
- | TAG_Int
- |colspan="2"| The tint color of the water blocks.
- | Example: 8364543, which is #7FA1FF in RGB.
- |-
- | foliage_color
- | Optional TAG_Int
- |colspan="2"| The tint color of the grass.
- | Example: 8364543, which is #7FA1FF in RGB.
- |-
- | grass_color
- | Optional TAG_Int
- | colspan="2"| ?
- | Example: 8364543, which is #7FA1FF in RGB.
- |-
- | grass_color_modifier
- | Optional TAG_String
- |colspan="2"| Unknown, likely affects foliage color.
- | If set, known values are "swamp" and "dark_forest".
- |-
- | music
- | Optional TAG_Compound
- |colspan="2"| Music properties for the biome.
- | If present, contains the fields: replace_current_music (TAG_Byte), sound (TAG_String), max_delay (TAG_Int), min_delay (TAG_Int).
- |-
- | ambient_sound
- | Optional TAG_String
- |colspan="2"| Ambient soundtrack.
- | If present, the ID of a soundtrack. Example: "minecraft:ambient.basalt_deltas.loop".
- |-
- | additions_sound
- | Optional TAG_Compound
- |colspan="2"| Additional ambient sound that plays randomly.
- | If present, contains the fields: sound (TAG_String), tick_chance (TAG_Double).
- |-
- | mood_sound
- | Optional TAG_Compound
- |colspan="2"| Additional ambient sound that plays at an interval.
- | If present, contains the fields: sound (TAG_String), tick_delay (TAG_Int), offset (TAG_Double), block_search_extent (TAG_Int).
- |-
- | particle
- | Optional TAG_Compound
- |colspan="2"| Particles that appear randomly in the biome.
- | If present, contains the fields: probability (TAG_Float), options (TAG_Compound). The "options" compound contains the field "type" (TAG_String), which identifies the particle type.
- |}
-==== Map Data ====
-Updates a rectangular area on a {{Minecraft Wiki|map}} item.
-{| class="wikitable"
   ! Packet ID
   ! State
   ! Bound To
-  !colspan="2"| Field Name
+  ! colspan="2"| Field Name
-  !colspan="2"| Field Type
+  ! colspan="2"| Field Type
   ! Notes
   |-
-  |rowspan="18"| {{change|0x25|0x27}}
+  | rowspan="3"| 0x01
-  |rowspan="18"| Play
+  | rowspan="3"| Configuration
-  |rowspan="18"| Client
+  | rowspan="3"| Server
-  |colspan="2"| Map ID
+  | colspan="2"| Key
-  |colspan="2"| VarInt
+  | colspan="2"| Identifier
-  | Map ID of the map being modified
+  | The identifier of the cookie.
   |-
-  |colspan="2"| Scale
+  | colspan="2"| Has Payload
- |colspan="2"| Byte
+  | colspan="2"| Boolean
- | From 0 for a fully zoomed-in map (1 block per pixel) to 4 for a fully zoomed-out map (16 blocks per pixel)
+  | The payload is only present if the cookie exists on the client.
- |- {{removed}}
- |colspan="2"| Tracking Position
-  |colspan="2"| Boolean
-  | Specifies whether player and item frame icons are shown
   |-
-  |colspan="2"| Locked
+  | colspan="2"| Payload
-  |colspan="2"| Boolean
+  | colspan="2"| Optional ByteArray(5120)
- | True if the map has been locked in a cartography table
+  | The data of the cookie, if any.
- |-
- |- {{added}}
- |colspan="2"| Tracking Position
- |colspan="2"| Boolean
- | Specifies whether player and item frame icons are shown
- |-
-  |colspan="2"| Icon Count
- |colspan="2"| VarInt
- | Number of elements in the following array. {{change||Only present if "Tracking Position" is true.}}
- |-
- |rowspan="6"| Icon
- | Type
- |rowspan="6"| Array
- | VarInt enum
- | See below
- |-
- | X
- | Byte
- | Map coordinates: -128 for furthest left, +127 for furthest right
- |-
- | Z
- | Byte
- | Map coordinates: -128 for highest, +127 for lowest
- |-
- | Direction
- | Byte
- | 0-15
- |-
- | Has Display Name
- | Boolean
- |
- |-
- | Display Name
- | Optional [[Chat]]
- | Only present if previous Boolean is true
- |-
- |colspan="2"| Columns
- |colspan="2"| Unsigned Byte
- | Number of columns updated
- |-
- |colspan="2"| Rows
- |colspan="2"| Optional Byte
- | Only if Columns is more than 0; number of rows updated
- |-
- |colspan="2"| X
- |colspan="2"| Optional Byte
- | Only if Columns is more than 0; x offset of the westernmost column
- |-
- |colspan="2"| Z
- |colspan="2"| Optional Byte
- | Only if Columns is more than 0; z offset of the northernmost row
- |-
- |colspan="2"| Length
- |colspan="2"| Optional VarInt
- | Only if Columns is more than 0; length of the following array
- |-
- |colspan="2"| Data
- |colspan="2"| Optional Array of Unsigned Byte
- | Only if Columns is more than 0; see {{Minecraft Wiki|Map item format}}
   |}
-For icons, a direction of 0 is a vertical icon and increments by 22.5&deg; (360/16).
+== Play ==
-Types are based off of rows and columns in <code>map_icons.png</code>:
+=== Clientbound ===
-{| class="wikitable"
+==== Cookie Request (play) ====
- |-
- ! Icon type
- ! Result
- |-
- | 0
- | White arrow (players)
- |-
- | 1
- | Green arrow (item frames)
- |-
- | 2
- | Red arrow
- |-
- | 3
- | Blue arrow
- |-
- | 4
- | White cross
- |-
- | 5
- | Red pointer
- |-
- | 6
- | White circle (off-map players)
- |-
- | 7
- | Small white circle (far-off-map players)
- |-
- | 8
- | Mansion
- |-
- | 9
- | Temple
- |-
- | 10
- | White Banner
- |-
- | 11
- | Orange Banner
- |-
- | 12
- | Magenta Banner
- |-
- | 13
- | Light Blue Banner
- |-
- | 14
- | Yellow Banner
- |-
- | 15
- | Lime Banner
- |-
- | 16
- | Pink Banner
- |-
- | 17
- | Gray Banner
- |-
- | 18
- | Light Gray Banner
- |-
- | 19
- | Cyan Banner
- |-
- | 20
- | Purple Banner
- |-
- | 21
- | Blue Banner
- |-
- | 22
- | Brown Banner
- |-
- | 23
- | Green Banner
- |-
- | 24
- | Red Banner
- |-
- | 25
- | Black Banner
- |-
- | 26
- | Treasure marker
- |}
-==== Combat Event ====
-Originally used for metadata for twitch streaming circa 1.8.  Now only used to display the game over screen (with enter combat and end combat completely ignored by the Notchain client)
-{| class="wikitable"
- ! Packet ID
- ! State
- ! Bound To
- !colspan="2"| Field Name
- ! Field Type
- ! Notes
- |- {{Removed}}
- |rowspan="8"| 0x31
- |rowspan="8"| Play
- |rowspan="8"| Client
- |colspan="2"| Event
- | VarInt Enum
- | Determines the layout of the remaining packet.
- |- {{Removed}}
- ! Event
- ! Field Name
- !
- !
- |- {{Removed}}
- | 0: enter combat
- | ''no fields''
- | ''no fields''
- |
- |- {{Removed}}
- |rowspan="2"| 1: end combat
- | Duration
- | VarInt
- | Length of the combat in ticks.
- |- {{Removed}}
- | Entity ID
- | Int
- | ID of the primary opponent of the ended combat, or -1 if there is no obvious primary opponent.
- |- {{Removed}}
- |rowspan="3"| 2: entity dead
- | Player ID
- | VarInt
- | Entity ID of the player that died (should match the client's entity ID).
- |- {{Removed}}
- | Entity ID
- | Int
- | The killing entity's ID, or -1 if there is no obvious killer.
- |- {{Removed}}
- | Message
- | [[Chat]]
- | The death message.
- |}
-==== End Combat Event ====
-Unused by the Notchain client.
-{| class="wikitable"
- ! Packet ID
- ! State
- ! Bound To
- !colspan="2"| Field Name
- ! Field Type
- ! Notes
- |- {{Added}}
- |rowspan="8"| 0x32
- |rowspan="8"| Play
- |rowspan="8"| Client
- | Duration
- | VarInt
- | Length of the combat in ticks.
- |- {{Added}}
- | Entity ID
- | Int
- | ID of the primary opponent of the ended combat, or -1 if there is no obvious primary opponent.
- |- {{Added}}
- |}
-==== Enter Combat Event ====
+Requests a cookie that was previously stored.
-Unused by the Notchain client.
+{| class="wikitable" {{added}}
-{| class="wikitable"
   ! Packet ID
   ! State
   ! Bound To
-  !colspan="2"| Field Name
+  ! colspan="2"| Field Name
-  ! Field Type
+  ! colspan="2"| Field Type
   ! Notes
- |- {{Added}}
- |rowspan="8"| 0x33
- |rowspan="8"| Play
- |rowspan="8"| Client
- |}
-==== Death Combat Event ====
-Used to send a respawn screen.
-{| class="wikitable"
- ! Packet ID
- ! State
- ! Bound To
- !colspan="2"| Field Name
- ! Field Type
- ! Notes
- |- {{Added}}
- |rowspan="8"| 0x34
- |rowspan="8"| Play
- |rowspan="8"| Client
- | Player ID
- | VarInt
- | Entity ID of the player that died (should match the client's entity ID).
- |- {{Added}}
- | Entity ID
- | Int
- | The killing entity's ID, or -1 if there is no obvious killer.
- |- {{Added}}
- | Message
- | [[Chat]]
- | The death message.
- |}
-==== Player Position And Look (clientbound) ====
-Updates the player's position on the server. This packet will also close the “Downloading Terrain” screen when joining/respawning.
-If the distance between the last known position of the player on the server and the new position set by this packet is greater than 100 meters, the client will be kicked for “You moved too quickly :( (Hacking?)”.
-Also if the fixed-point number of X or Z is set greater than <code>3.2E7D</code> the client will be kicked for “Illegal position”.
-Yaw is measured in degrees, and does not follow classical trigonometry rules. The unit circle of yaw on the XZ-plane starts at (0, 1) and turns counterclockwise, with 90 at (-1, 0), 180 at (0, -1) and 270 at (1, 0). Additionally, yaw is not clamped to between 0 and 360 degrees; any number is valid, including negative numbers and numbers greater than 360.
-Pitch is measured in degrees, where 0 is looking straight ahead, -90 is looking straight up, and 90 is looking straight down.
-{| class="wikitable"
- ! Packet ID
- ! State
- ! Bound To
- ! Field Name
- ! Field Type
- ! Notes
- |-
- |rowspan="8"| {{change|0x34|0x38}}
- |rowspan="8"| Play
- |rowspan="8"| Client
- | X
- | Double
- | Absolute or relative position, depending on Flags.
- |-
- | Y
- | Double
- | Absolute or relative position, depending on Flags.
- |-
- | Z
- | Double
- | Absolute or relative position, depending on Flags.
- |-
- | Yaw
- | Float
- | Absolute or relative rotation on the X axis, in degrees.
- |-
- | Pitch
- | Float
- | Absolute or relative rotation on the Y axis, in degrees.
- |-
- | Flags
- | Byte
- | Bit field, see below.
- |-
- | Teleport ID
- | VarInt
- | Client should confirm this packet with [[#Teleport Confirm|Teleport Confirm]] containing the same Teleport ID.
- |- {{added}}
- | Dismount Vehicle
- | Boolean
- | True if the player should dismount their vehicle.
- |}
-About the Flags field:
- <Dinnerbone> It's a bitfield, X/Y/Z/Y_ROT/X_ROT. If X is set, the x value is relative and not absolute.
-{| class="wikitable"
- |-
- ! Field
- ! Bit
- |-
- | X
- | 0x01
- |-
- | Y
- | 0x02
- |-
- | Z
- | 0x04
- |-
- | Y_ROT
- | 0x08
   |-
-  | X_ROT
+  | rowspan="1"| 0x16
-  | 0x10
+ | rowspan="1"| Play
+ | rowspan="1"| Client
+ | colspan="2"| Key
+ | colspan="2"| Identifier
+  | The identifier of the cookie.
   |}
-==== Destroy Entity ====
+==== Store Cookie (play) ====
-Sent by the server when {{change|a list of entities|an entity}} is to be destroyed on the client.
+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"
+{| class="wikitable" {{added}}
   ! Packet ID
   ! State
   ! Bound To
-  ! Field Name
+  ! colspan="2"| Field Name
- ! Field Type
+  ! colspan="2"| Field Type
- ! Notes
- |-
- |rowspan="4"| 0x36
-  |rowspan="4"| Play
- |rowspan="4"| Client
- |- {{removed}}
- | Count
- | VarInt
- | Number of elements in the following array.
- |- {{Removed}}
- | Array of VarInt
- | The list of entities of destroy.
- |- {{Added}}
- | Entity ID
- | VarInt
- |}
-==== Resource Pack Send ====
-{| class="wikitable"
- ! Packet ID
- ! State
- ! Bound To
- ! Field Name
- ! Field Type
   ! Notes
   |-
-  |rowspan="4"| {{change|0x38|0x3B}}
+  | rowspan="2"| 0x6A
-  |rowspan="4"| Play
+  | rowspan="2"| Play
-  |rowspan="4"| Client
+  | rowspan="2"| Client
-  | URL
+  | colspan="2"| Key
-  | String (32767)
+  | colspan="2"| Identifier
-  | The URL to the resource pack.
+  | The identifier of the cookie.
   |-
-  | Hash
+  | colspan="2"| Payload
- | String (40)
+  | colspan="2"| ByteArray(5120)
- | A 40 character hexadecimal and lowercase [[wikipedia:SHA-1|SHA-1]] hash of the resource pack file. (must be lower case in order to work)<br />If it's not a 40 character hexadecimal string, the client will not use it for hash verification and likely waste bandwidth — but it will still treat it as a unique id
+  | The data of the cookie.
- |- {{Added}}
- | Forced
- | Boolean
- | The notchian client will be forced to use the resource pack from the server. If they decline they will be kicked from the server.
- |- {{Added}}
- | Forced Message
- | [[Chat]]
- | This is sent with the force resourcepack popup.
- |}
-==== Title ====
-{| class="wikitable"
- ! Packet ID
- ! State
- ! Bound To
- !colspan="2"| Field Name
- ! Field Type
- ! Notes
- |- {{ Removed }}
- |rowspan="10"| 0x4F
- |rowspan="10"| Play
- |rowspan="10"| Client
-  |colspan="2"| Action
- | VarInt Enum
- |
- |- {{ Removed }}
- ! Action
- ! Field Name
- !
- !
- |- {{ Removed }}
- | 0: set title
- | Title Text
- | [[Chat]]
- |
- |- {{ Removed }}
- | 1: set subtitle
- | Subtitle Text
- | [[Chat]]
- |
- |- {{ Removed }}
- | 2: set action bar
- | Action bar text
- | [[Chat]]
- | Displays a message above the hotbar (the same as position 2 in [[#Chat Message (clientbound)|Chat Message (clientbound)]].
-  |- {{ Removed }}
- |rowspan="3"| 3: set times and display
- | Fade In
- | Int
- | Ticks to spend fading in.
- |- {{ Removed }}
- | Stay
- | Int
- | Ticks to keep the title displayed.
- |- {{ Removed }}
- | Fade Out
- | Int
- | Ticks to spend out, not when to start fading out.
- |- {{ Removed }}
- | 4: hide
- | ''no fields''
- | ''no fields''
- |
- |- {{ Removed }}
- | 5: reset
- | ''no fields''
- | ''no fields''
- |
   |}
-“Hide” makes the title disappear, but if you run times again the same title will appear. “Reset” erases the text.
+==== Transfer (play) ====
-The title is visible on screen for Fade In + Stay + Fade Out ticks.
+Notifies the client that it should transfer to the given server. Cookies previously stored are preserved between server transfers.
-==== Action Bar ====
+{| class="wikitable" {{added}}
-{| class="wikitable"
   ! Packet ID
   ! State
   ! Bound To
-  ! Field Name
+  ! colspan="2"| Field Name
-  ! Field Type
+  ! colspan="2"| Field Type
   ! Notes
- |- {{ Added }}
- |rowspan="4"| 0x40
- |rowspan="4"| Play
- |rowspan="4"| Client
- | Action bar text
- | [[Chat]]
- | Displays a message above the hotbar (the same as position 2 in [[#Chat Message (clientbound)|Chat Message (clientbound)]].
- |- {{ Added }}
- |}
-==== World Border Center ====
-{| class="wikitable"
- ! Packet ID
- ! State
- ! Bound To
- ! Field Name
- ! Field Type
- ! Notes
- |- {{ Added }}
- |rowspan="18"| 0x41
- |rowspan="18"| Play
- |rowspan="18"| Client
- | X
- | Double
- |
- |- {{ Added }}
- | Z
- | Double
- |
- |- {{ Added }}
- |}
-==== World Border Lerp Size ====
-{| class="wikitable"
- ! Packet ID
- ! State
- ! Bound To
- ! Field Name
- ! Field Type
- ! Notes
- |- {{ Added }}
- |rowspan="4"| 0x42
- |rowspan="4"| Play
- |rowspan="4"| Client
- | Old Diameter
- | Double
- | Current length of a single side of the world border, in meters.
- |- {{ Added }}
- | New Diameter
- | Double
- | Target length of a single side of the world border, in meters.
- |- {{ Added }}
- | Speed
- | VarLong
- | Number of real-time ''milli''seconds until New Diameter is reached. It appears that Notchian server does not sync world border speed to game ticks, so it gets out of sync with server lag. If the world border is not moving, this is set to 0.
   |-
- |}
+  | rowspan="2"| 0x72
-==== World Border Size ====
+  | rowspan="2"| Play
+  | rowspan="2"| Client
-{| class="wikitable"
+  | colspan="2"| Host
- ! Packet ID
+  | colspan="2"| String
- ! State
+  | The hostname of IP of the server.
- ! Bound To
- ! Field Name
- ! Field Type
- ! Notes
- |- {{ Added }}
-  |rowspan="4"| 0x43
-  |rowspan="4"| Play
-  |rowspan="4"| Client
-  | Diameter
- | Double
- | Length of a single side of the world border, in meters.
- |- {{ Added }}
- |}
-==== World Border Warning Delay====
-{| class="wikitable"
- ! Packet ID
- ! State
- ! Bound To
- ! Field Name
- ! Field Type
- ! Notes
- |- {{ Added }}
- |rowspan="4"| 0x44
-  |rowspan="4"| Play
-  |rowspan="4"| Client
- | Warning Time
- | VarInt
- | In seconds as set by <code>/worldborder warning time</code>.
- |- {{ Added }}
- |}
-==== World Border Warning Reach====
-{| class="wikitable"
- ! Packet ID
- ! State
- ! Bound To
- ! Field Name
- ! Field Type
- ! Notes
- |- {{ Added }}
- |rowspan="4"| 0x45
- |rowspan="4"| Play
- |rowspan="4"| Client
- | Warning Blocks
- | VarInt
- | In meters.
- |- {{ Added }}
- |}
-==== Spawn Position ====
-Sent by the server after login to specify the coordinates of the spawn point (the point at which players spawn at, and which the compass points to). It can be sent at any time to update the point compasses point at.
-{| class="wikitable"
- ! Packet ID
- ! State
- ! Bound To
- ! Field Name
- ! Field Type
- ! Notes
   |-
-  |rowspan="4"| {{change|0x42|0x4B}}
+  | colspan="2"| Port
- |rowspan="4"| Play
+  | colspan="2"| VarInt
-  |rowspan="4"| Client
+  | The port of the server.
-  | Location
- | Position
- | Spawn location.
- |- {{added}}
- | Angle
- | Float
- |
- |}
-==== Set Title SubTitle ====
-{| class="wikitable"
- ! Packet ID
- ! State
- ! Bound To
- ! Field Name
- ! Field Type
- ! Notes
- |- {{ Added }}
- |rowspan="4"| 0x56
- |rowspan="4"| Play
- |rowspan="4"| Client
- | Subtitle Text
- | [[Chat]]
- |- {{ Added }}
   |}
+==== Update Attributes ====
-==== Set Title Text ====
-{| class="wikitable"
- ! Packet ID
- ! State
- ! Bound To
- ! Field Name
- ! Field Type
- ! Notes
- |- {{ Added }}
- |rowspan="4"| 0x58
- |rowspan="4"| Play
- |rowspan="4"| Client
- | Title Text
- | [[Chat]]
- |- {{ Added }}
- |}
-==== Set Title Time====
-{| class="wikitable"
- ! Packet ID
- ! State
- ! Bound To
- ! Field Name
- ! Field Type
- ! Notes
- |- {{ Added }}
- |rowspan="4"| 0x59
- |rowspan="4"| Play
- |rowspan="4"| Client
- | Fade In
- | Int
- | Ticks to spend fading in.
- |- {{ Added }}
- | Stay
- | Int
- | Ticks to keep the title displayed.
- |- {{ Added }}
- | Fade Out
- | Int
- | Ticks to spend out, not when to start fading out.
- |}
-==== Entity Properties ====
 Sets {{Minecraft Wiki|Attribute|attributes}} on the given entity.
@@ Line 1,736: / Line 603: @@
   ! State
   ! Bound To
-  !colspan="2"| Field Name
+  ! colspan="2"| Field Name
-  !colspan="2"| Field Type
+  ! colspan="2"| Field Type
   ! Notes
   |-
-  |rowspan="6"| {{change|0x58|0x63}}
+  | rowspan="6"| 0x71
-  |rowspan="6"| Play
+  | rowspan="6"| Play
-  |rowspan="6"| Client
+  | rowspan="6"| Client
-  |colspan="2"| Entity ID
+  | colspan="2"| Entity ID
-  |colspan="2"| VarInt
+  | colspan="2"| VarInt
   |
   |-
-  |colspan="2"| Number Of Properties
+  | colspan="2"| Number Of Properties
-  |colspan="2"| {{change|Int|VarInt}}
+  | colspan="2"| VarInt
   | Number of elements in the following array.
   |-
-  |rowspan="4"| Property
+  | rowspan="4"| Property
-  | Key
+  | {{change|Key|Id}}
-  |rowspan="4"| Array
+  | rowspan="4"| Array
-  | Identifier
+  | {{change|Identifier|VarInt Enum}}
   | See below.
   |-
@@ Line 1,774: / Line 641: @@
 {| class="wikitable"
   |-
+ ! Id
   ! Key
   ! Default
@@ Line 1,780: / Line 648: @@
   ! Label
   |-
-  | generic.max_health
+  | 0
-  | 20.0
+  | generic.armor
   | 0.0
- | 1024.0
- | Max Health.
- |-
- | generic.follow_range
- | 32.0
   | 0.0
-  | 2048.0
+  | 30.0
-  | Follow Range.
+  | Armor.
   |-
-  | generic.knockback_resistance
+ | 1
+  | generic.armor_toughness
   | 0.0
   | 0.0
-  | 1.0
+  | 20.0
-  | Knockback Resistance.
+  | Armor Toughness.
- |-
- | generic.movement_speed
- | 0.7
- | 0.0
- | 1024.0
- | Movement Speed.
   |-
+ | 2
   | generic.attack_damage
   | 2.0
@@ Line 1,810: / Line 669: @@
   | Attack Damage.
   |-
+ | 3
+ | generic.attack_knockback
+ | 0.0
+ | 0.0
+ | 5.0
+ | Attack Knockback.
+ |-
+ | 4
   | generic.attack_speed
   | 4.0
@@ Line 1,815: / Line 682: @@
   | 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
@@ Line 1,822: / Line 704: @@
   | Flying Speed.
   |-
-  | generic.armor
+ | 8
+  | generic.follow_range
+ | 32.0
   | 0.0
-  | 0.0
+  | 2048.0
- | 30.0
+  | Follow Range.
-  | Armor.
   |-
-  | generic.armor_toughness
+  | 9
+ | horse.jump_strength
+ | 0.7
   | 0.0
-  | 0.0
+  | 2.0
- | 20.0
+  | Jump Strength.
-  | Armor Toughness.
   |-
-  | generic.attack_knockback
+ | 10
+  | generic.knockback_resistance
   | 0.0
   | 0.0
-  | 5.0
+  | 1.0
-  | &mdash;
+  | Knockback Resistance.
   |-
+ | 11
   | generic.luck
   | 0.0
@@ Line 1,846: / Line 732: @@
   | Luck.
   |-
-  | horse.jump_strength
+  | 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
-  | 2.0
+  | 1024.0
-  | Jump Strength.
+  | Movement Speed.
+ |- {{added}}
+ | 15
+ | generic.scale
+ | 1.0
+ | 0.0625
+ | 16.0
+ | Scale.
   |-
+ | 16
   | zombie.spawn_reinforcements
   | 0.0
@@ Line 1,857: / Line 766: @@
   | 1.0
   | Spawn Reinforcements Chance.
-  |-
+  |- {{added}}
-  | generic.reachDistance
+  | 17
-  | 5.0
+  | generic.step_height
-  | 0.0
+  | 0.6
- | 1024.0
- | Player Reach Distance (Forge only).
- |-
- | forge.swimSpeed
- | 1.0
   | 0.0
-  | 1024.0
+  | 10.0
-  | Swimming Speed (Forge only).
+  | Step Height.
   |}
-Unknown attributes will cause a game crash ([https://bugs.mojang.com/browse/MC-150405 MC-150405]) due to the default minimum being larger than the default value.
 ''Modifier Data'' structure:
@@ Line 1,883: / Line 785: @@
   | UUID
   | UUID
   |
   |-
   | Amount
@@ Line 1,902: / Line 804: @@
 All of the 0's are applied first, and then the 1's, and then the 2's.
-==== Tags ====
+==== Entity Effect ====
 {| class="wikitable"
@@ Line 1,908: / Line 810: @@
   ! State
   ! Bound To
-  !colspan="2"| Field Name
+  ! Field Name
-  !colspan="2"| Field Type
+  ! Field Type
   ! Notes
   |-
-  |rowspan="8"| {{change|0x5B|0x65}}
+  | rowspan="7"| 0x72
-  |rowspan="8"| Play
+  | rowspan="7"| Play
-  |rowspan="8"| Client
+  | rowspan="7"| Client
-  |- {{removed}}
+  | Entity ID
- | colspan="2"| Block Tags
+  | VarInt
- | colspan="2"| (See below)
- | IDs are block IDs
- |- {{removed}}
- | colspan="2"| Item Tags
- | colspan="2"| (See below)
- | IDs are item IDs
- |- {{removed}}
- | colspan="2"| Fluid Tags
- | colspan="2"| (See below)
- | IDs are fluid IDs
- |- {{removed}}
- | colspan="2"| Entity Tags
-  | colspan="2"| (See below)
- | IDs are entity IDs
- |- {{added}}
- | colspan="2"| Length of the array
- | colspan="2"| VarInt
- |
- |- {{added}}
- |rowspan="2"| Array of tags
- | Tag type
- |rowspan="2"| Array
- | Identifier
- | Tag identifier (Vanilla required tags are <code>minecraft:block</code>, <code>minecraft:item</code>, <code>minecraft:fluid</code>, <code>minecraft:entity_type</code>, and <code>minecraft:game_event</code>)
- |-
- | Array of Tag
- | (See below)
   |
- |}
-Tags look like:
-{| class="wikitable"
- !colspan="2"| Field Name
- !colspan="2"| Field Type
- ! Notes
   |-
-  |colspan="2"| Length
+  | Effect ID
-  |colspan="2"| VarInt
+  | VarInt
-  | Number of elements in the following array
+  | See {{Minecraft Wiki|Status effect#Effect list|this table}}.
   |-
-  |rowspan="3"| Tags
+  | Amplifier
- | Tag name
+  | Byte
- |rowspan="3"| Array
+  | Notchian client displays effect level as Amplifier + 1.
-  | Identifier
-  |
   |-
-  | Count
+  | Duration
   | VarInt
-  | Number of elements in the following array
+  | Duration in ticks. (-1 for infinite)
   |-
-  | Entries
+  | Flags
- | Array of VarInt
- | Numeric ID of the given type (block, item, etc.).
- |}
-=== Serverbound ===
-==== Client Settings ====
-Sent when the player connects, or when settings are changed.
-{| class="wikitable"
- ! Packet ID
- ! State
- ! Bound To
- ! Field Name
- ! Field Type
- ! Notes
- |-
- |rowspan="7"| 0x05
- |rowspan="7"| Play
- |rowspan="7"| Server
- | Locale
- | String (16)
- | e.g. <code>en_GB</code>.
- |-
- | View Distance
   | Byte
-  | Client-side render distance, in chunks.
+  | Bit field, see below.
- |-
+  |- {{removed}}
- | Chat Mode
+  | Has Factor Data
- | VarInt Enum
- | 0: enabled, 1: commands only, 2: hidden.  See [[Chat#Processing chat|processing chat]] for more information.
-  |-
-  | Chat Colors
   | Boolean
-  | “Colors” multiplayer setting.
+  | Used in DARKNESS effect
- |-
+  |- {{removed}}
- | Displayed Skin Parts
+  | Factor Codec
- | Unsigned Byte
+  | NBT Tag
- | Bit mask, see below.
+  | See below
- |-
- | Main Hand
- | VarInt Enum
- | 0: Left, 1: Right.
-  |- {{Added}}
-  | Disable text filtering
-  | Boolean
-  | Disables filtering of text on signs and written book titles.  Currently always true (i.e. the filtering is disabled)
   |}
-''Displayed Skin Parts'' flags:
+{{Need Info|What exact effect does the blend bit flag have on the client? What happens if it is used on effects besides DARKNESS?}}
-* Bit 0 (0x01): Cape enabled
+Within flags:
-* Bit 1 (0x02): Jacket enabled
-* Bit 2 (0x04): Left Sleeve enabled
-* Bit 3 (0x08): Right Sleeve enabled
-* Bit 4 (0x10): Left Pants Leg enabled
-* Bit 5 (0x20): Right Pants Leg enabled
-* Bit 6 (0x40): Hat enabled
-The most significant bit (bit 7, 0x80) appears to be unused.
+* 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|}}
-==== Window Confirmation (serverbound) ====
+{| class="wikitable" {{removed}}
+  !Name
-If a confirmation sent by the client was not accepted, the server will reply with a [[#Window Confirmation (clientbound)|Window Confirmation (clientbound)]] packet with the Accepted field set to false. When this happens, the client must send this packet to apologize (as with movement), otherwise the server ignores any successive confirmations.
+  !Type
+  !style="width: 250px;" colspan="2"| Notes
-{| class="wikitable"
-  ! Packet ID
- ! State
- ! Bound To
- ! Field Name
-  ! Field Type
-  ! Notes
- |- {{ Removed }}
- |rowspan="3"| 0x07
- |rowspan="3"| Play
- |rowspan="3"| Server
- | Window ID
- | Byte
- | The ID of the window that the action occurred in.
- |- {{ Removed }}
- | Action Number
- | Short
- | Every action that is to be accepted has a unique number. This number is an incrementing integer (starting at 1) with separate counts for each window ID.
- |- {{ Removed }}
- | Accepted
- | Boolean
- | Whether the action was accepted.
- |}
-==== Click Window ====
-This packet is sent by the client when the player clicks on a slot in a window.
-{| class="wikitable"
- ! Packet ID
- ! State
- ! Bound To
- ! Field Name
- ! Field Type
- ! Notes
   |-
-  |rowspan="9"| 0x09
+  | padding_duration
- |rowspan="9"| Play
+  | TAG_INT
- |rowspan="9"| Server
+  |
- | Window ID
-  | Unsigned Byte
-  | The ID of the window which was clicked. 0 for player inventory.
   |-
-  | Slot
+  | factor_start
-  | Short
+  | TAG_FLOAT
-  | The clicked slot number, see below.
+  |
   |-
-  | Button
+  | factor_target
-  | Byte
+  | TAG_FLOAT
-  | The button used in the click, see below.
+  |
- |- {{ Removed }}
- | Action Number
- | Short
- | A unique number for the action, implemented by Notchian as a counter, starting at 1 (different counter for every window ID). Used by the server to send back a [[#Window Confirmation (clientbound)|Window Confirmation (clientbound)]].
- |-
- | Mode
- | VarInt Enum
- | Inventory operation mode, see below.
   |-
-  | Clicked item
+  | factor_current
-  | [[Slot Data|Slot]]
+  | TAG_FLOAT
- | The clicked slot. Has to be empty (item ID = -1) for drop mode. Is always empty for mode 2 and mode 5 packets.
- |- {{ Added }}
- | colspan="2"| Length of the array
- | colspan="2"| VarInt
   |
- |- {{ Added }}
- |rowspan="2"| Array of slots
- | Slot number
- |rowspan="2"| Array
- | Short
- |
- |-
- | Slot data
- | Slot
- | New data for this slot
- |}
-See [[Inventory]] for further information about how slots are indexed.
-When right-clicking on a stack of items, half the stack will be picked up and half left in the slot. If the stack is an odd number, the half left in the slot will be smaller of the amounts.
-The distinct type of click performed by the client is determined by the combination of the Mode and Button fields.
-{| class="wikitable"
- ! Mode
- ! Button
- ! Slot
- ! Trigger
   |-
-  !rowspan="4"| 0
+  | effect_changed_timestamp
-  | 0
+  | TAG_INT
- | Normal
- | Left mouse click
   |-
-  | 1
+  | factor_previous_frame
-  | Normal
+  | TAG_FLOAT
- | Right mouse click
- |-
- | 0
- | -999
- | Left click outside inventory (drop cursor stack)
- |-
- | 1
- | -999
- | Right click outside inventory (drop cursor single item)
- |-
- !rowspan="2"| 1
- | 0
- | Normal
- | Shift + left mouse click
- |-
- | 1
- | Normal
- | Shift + right mouse click ''(identical behavior)''
- |-
- !rowspan="5"| 2
- | 0
- | Normal
- | Number key 1
- |-
- | 1
- | Normal
- | Number key 2
- |-
- | 2
- | Normal
- | Number key 3
- |-
- | ⋮
- | ⋮
- | ⋮
- |-
- | 8
- | Normal
- | Number key 9
- |-
- ! 3
- | 2
- | Normal
- | Middle click, only defined for creative players in non-player inventories.
- |-
- !rowspan="1"| 4
- | 0
- | Normal*
- | Drop key (Q) (* Clicked item is always empty)
- |-
- !rowspan="9"| 5
- | 0
- | -999
- | Starting left mouse drag
- |-
- | 4
- | -999
- | Starting right mouse drag
- |-
- | 8
- | -999
- | Starting middle mouse drag, only defined for creative players in non-player inventories.  (Note: the vanilla client will still incorrectly send this for non-creative players - see [https://bugs.mojang.com/browse/MC-46584 MC-46584])
- |-
- | 1
- | Normal
- | Add slot for left-mouse drag
- |-
- | 5
- | Normal
- | Add slot for right-mouse drag
- |-
- | 9
- | Normal
- | Add slot for middle-mouse drag, only defined for creative players in non-player inventories.  (Note: the vanilla client will still incorrectly send this for non-creative players - see [https://bugs.mojang.com/browse/MC-46584 MC-46584])
- |-
- | 2
- | -999
- | Ending left mouse drag
- |-
- | 6
- | -999
- | Ending right mouse drag
- |-
- | 10
- | -999
- | Ending middle mouse drag, only defined for creative players in non-player inventories.  (Note: the vanilla client will still incorrectly send this for non-creative players - see [https://bugs.mojang.com/browse/MC-46584 MC-46584])
   |-
- ! 6
+  | had_effect_last_tick
- | 0
+  | TAG_BOOLEAN
-  | Normal
-  | Double click
   |}
-Starting from version 1.5, “painting mode” is available for use in inventory windows. It is done by picking up stack of something (more than 1 item), then holding mouse button (left, right or middle) and dragging held stack over empty (or same type in case of right button) slots. In that case client sends the following to server after mouse button release (omitting first pickup packet which is sent as usual):
-# packet with mode 5, slot -999, button (0 for left | 4 for right);
-# packet for every slot painted on, mode is still 5, button (1 | 5);
-# packet with mode 5, slot -999, button (2 | 6);
-If any of the painting packets other than the “progress” ones are sent out of order (for example, a start, some slots, then another start; or a left-click in the middle) the painting status will be reset.
-The server will send back a [[#Window Confirmation (clientbound)|Window Confirmation]] packet. If the click was not accepted, the client must send a matching [[#Window Confirmation (serverbound)|serverbound window confirmation]] packet before sending more [[#Click Window|Click Window]] packets, otherwise the server will reject them silently. The Notchian server also sends a [[#Window Items|Window Items]] packet for the open window and [[#Set Slot|Set Slot]] packets for the clicked and cursor slot, but only when the click was not accepted, probably to resynchronize client and server.
-==== Pong ====
-A response to the ping packet. Unknown what this is used for, this is ignored by the Notchian client and server.
-{| class="wikitable"
- ! Packet ID
- ! State
- ! Bound To
- ! Field Name
- ! Field Type
- ! Notes
- |- {{added}}
- | 0x1D
- | Play
- | Server
- | ID
- | Int
- |
- |}
-== Handshaking ==
-=== Clientbound ===
-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.
 === Serverbound ===
-==== Handshake ====
+==== Cookie Response (play) ====
-This causes the server to switch into the target state.
+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"
+{| class="wikitable" {{added}}
   ! Packet ID
   ! State
   ! Bound To
-  ! Field Name
+  ! colspan="2"| Field Name
-  ! Field Type
+  ! colspan="2"| Field Type
   ! Notes
   |-
-  |rowspan="4"| 0x00
+  | rowspan="3"| 0x6A
-  |rowspan="4"| Handshaking
+  | rowspan="3"| Play
-  |rowspan="4"| Server
+  | rowspan="3"| Server
-  | Protocol Version
+  | colspan="2"| Key
-  | VarInt
+  | colspan="2"| Identifier
-  | See [[protocol version numbers]] (currently {{change|754|{{Snapshot PVN|1073741839}}}})
+  | The identifier of the cookie.
   |-
-  | Server Address
+  | colspan="2"| Has Payload
- | String
+  | colspan="2"| Boolean
-  | 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 {{change|complete|simple}} redirect, e.g. if _minecraft._tcp.example.com points to mc.example.org, users connecting to example.com will provide {{change|mc.|}}example.org as server address in addition to connecting to it.
+  | The payload is only present if the cookie exists on the client.
-  |-
- | Server Port
- | Unsigned Short
- | Default is 25565.  The Notchian server does not use this information.
   |-
-  | Next State
+  | colspan="2"| Payload
-  | VarInt Enum
+  | colspan="2"| Optional ByteArray(5120)
-  | 1 for [[#Status|status]], 2 for [[#Login|login]]
+  | The data of the cookie, if any.
   |}
-== Status ==
-=== Clientbound ===
-No changes so far.
-=== Serverbound ===
-No changes so far.
-== Login ==
-=== Clientbound ===
-No changes so far.
-=== Serverbound ===
-No changes so far.
 [[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)

Navigation menu

Search