Table of Contents

KeyName
Typeslot
Typeparticle
TypeparticleData
Typeingredient
TypesoundSource
TypepreviousMessages
TypeentityMetadataItem
Typeminecraft_simple_recipe_format
Typeminecraft_smelting_format
Typetags
TypechunkBlockEntity
Typechat_session?
Typegame_profile
Typecommand_node


Type
slot
Datatype

Field NameField TypeNotes
present bool
🔁

if present
is false void
is true
itemId varint
itemCount i8
nbtData optionalNbt



Type
particle
Datatype

Field NameField TypeNotes
particleId varint



Type
particleData
Datatype

Field NameField TypeNotes
particleData

if compareTo
is 2
blockState varint
is 3
blockState varint
is 14
red f32
green f32
blue f32
scale f32
is 15
fromRed f32
fromGreen f32
fromBlue f32
scale f32
toRed f32
toGreen f32
toBlue f32
is 25
blockState varint
is 30
rotation f32
is 39
item slot
is 40
positionType string
entityId

if positionType
is minecraft:entity varint
default void
entityEyeHeight

if positionType
is minecraft:entity varint
default void
destination

if positionType
is minecraft:block position
is minecraft:entity varint
ticks varint
is 92
delayInTicksBeforeShown varint
default void



Type
soundSource
Datatype

Field NameField TypeNotes
soundSource
varint enum
0master
1music
2record
3weather
4block
5hostile
6neutral
7player
8ambient
9voice




Field NameField TypeNotes
previousMessages lengthvarint
previousMessages
array
id varint
signature

if id
default void




Field NameField TypeNotes
entityMetadataItem

if compareTo
is 0 i8
is 1 varint
is 2 varlong
is 3 f32
is 4 string
is 5 string
is 7 slot
is 8 bool
is 9
pitch f32
yaw f32
roll f32
is 10 position
is 12 varint
is 14 varint
is 15 nbt
is 16 particle
is 17
villagerType varint
villagerProfession varint
level varint
is 18 optvarint
is 19 varint
is 20 varint
is 21 varint
is 23 varint




Field NameField TypeNotes
category varint




Field NameField TypeNotes
group string
category varint
ingredient ingredient
result slot
experience f32
cookTime varint



Type
tags
Datatype

Field NameField TypeNotes
tags lengthvarint
tags
array
tagName string
entries lengthvarint
entries
array
varint




Field NameField TypeNotes
y i16
type varint
nbtData optionalNbt



Type
chat session
Datatype

Field NameField TypeNotes
uuid UUID
publicKey
expireTime i64



Type
game profile
Datatype

Field NameField TypeNotes
name string
properties lengthvarint
properties
array
key string
value string
signature
optional
string



Type
command node
Datatype

Field NameField TypeNotes
children lengthvarint
children
array
varint
redirectNode

if flags/has redirect node
is 1 varint
default void
extraNodeData

if flags/command node type
is 0 void
is 1
name string
is 2
name string
parser
varint enum
0brigadier:bool
1brigadier:float
2brigadier:double
3brigadier:integer
4brigadier:long
5brigadier:string
6minecraft:entity
7minecraft:game profile
8minecraft:block pos
9minecraft:column pos
10minecraft:vec3
11minecraft:vec2
12minecraft:block state
13minecraft:block predicate
14minecraft:item stack
15minecraft:item predicate
16minecraft:color
17minecraft:component
18minecraft:message
19minecraft:nbt
20minecraft:nbt tag
21minecraft:nbt path
22minecraft:objective
23minecraft:objective criteria
24minecraft:operation
25minecraft:particle
26minecraft:angle
27minecraft:rotation
28minecraft:scoreboard slot
29minecraft:score holder
30minecraft:swizzle
31minecraft:team
32minecraft:item slot
33minecraft:resource location
34minecraft:function
35minecraft:entity anchor
36minecraft:int range
37minecraft:float range
38minecraft:dimension
39minecraft:gamemode
40minecraft:time
41minecraft:resource or tag
42minecraft:resource or tag key
43minecraft:resource
44minecraft:resource key
45minecraft:template mirror
46minecraft:template rotation
47minecraft:uuid
properties

if parser
is brigadier:bool void
is brigadier:float
min

if flags/min present
is 1 f32
default void
max

if flags/max present
is 1 f32
default void
is brigadier:double
min

if flags/min present
is 1 f64
default void
max

if flags/max present
is 1 f64
default void
is brigadier:integer
min

if flags/min present
is 1 i32
default void
max

if flags/max present
is 1 i32
default void
is brigadier:long
min

if flags/min present
is 1 i64
default void
max

if flags/max present
is 1 i64
default void
is brigadier:string
varint enum
0SINGLE WORD
1QUOTABLE PHRASE
2GREEDY PHRASE
is minecraft:game profile void
is minecraft:block pos void
is minecraft:column pos void
is minecraft:vec3 void
is minecraft:vec2 void
is minecraft:block state void
is minecraft:block predicate void
is minecraft:item stack void
is minecraft:item predicate void
is minecraft:color void
is minecraft:component void
is minecraft:message void
is minecraft:nbt void
is minecraft:nbt path void
is minecraft:objective void
is minecraft:objective criteria void
is minecraft:operation void
is minecraft:particle void
is minecraft:angle void
is minecraft:rotation void
is minecraft:scoreboard slot void
is minecraft:swizzle void
is minecraft:team void
is minecraft:item slot void
is minecraft:resource location void
is minecraft:function void
is minecraft:entity anchor void
is minecraft:int range void
is minecraft:float range void
is minecraft:dimension void
is minecraft:gamemode void
is minecraft:time void
is minecraft:resource or tag
registry string
is minecraft:resource or tag key
registry string
is minecraft:resource
registry string
is minecraft:resource key
registry string
is minecraft:template mirror void
is minecraft:template rotation void
is minecraft:uuid void
suggestionType

if ../flags/has custom suggestions
is 1 string
default void



Table of Contents

KeyName
Typepacket


Type
packet
Datatype

Field NameField TypeNotes
name
varint enum



Table of Contents

KeyName
Typepacket_set_protocol
0xfepacket_legacy_server_list_ping
Typepacket


0
packet set protocol
handshaking / toServer / packet_set_protocol (0x00)

Field NameField TypeNotes
protocolVersion varint
serverHost string
serverPort u16
nextState varint



254
packet legacy server list ping
handshaking / toServer / packet_legacy_server_list_ping (0xfe)

Field NameField TypeNotes
payload u8



Type
packet
handshaking / toServer / packet

Field NameField TypeNotes
name
varint enum
0set protocol
254legacy server list ping
params

if name
is set protocol packet_set_protocol
is legacy server list ping packet_legacy_server_list_ping



Table of Contents

KeyName
Typepacket_server_info
0x1packet_ping
Typepacket


0
packet server info
status / toClient / packet_server_info (0x00)

Field NameField TypeNotes
response string



1
packet ping
status / toClient / packet_ping (0x01)

Field NameField TypeNotes
time i64



Type
packet
status / toClient / packet

Field NameField TypeNotes
name
varint enum
0server info
1ping
params

if name
is server info packet_server_info
is ping packet_ping



Table of Contents

KeyName
Typepacket_ping_start
0x1packet_ping
Typepacket


1
packet ping
status / toServer / packet_ping (0x01)

Field NameField TypeNotes
time i64



Type
packet
status / toServer / packet

Field NameField TypeNotes
name
varint enum
0ping start
1ping
params

if name
is ping start packet_ping_start
is ping packet_ping



Table of Contents

KeyName
Typepacket_disconnect
0x1packet_encryption_begin
0x2packet_success
0x3packet_compress
0x4packet_login_plugin_request
Typepacket


0
packet disconnect
login / toClient / packet_disconnect (0x00)

Field NameField TypeNotes
reason string



1
packet encryption begin
login / toClient / packet_encryption_begin (0x01)

Field NameField TypeNotes
serverId string



2
packet success
login / toClient / packet_success (0x02)

Field NameField TypeNotes
uuid UUID
username string
properties lengthvarint
properties
array
name string
value string
signature
optional
string



3
packet compress
login / toClient / packet_compress (0x03)

Field NameField TypeNotes
threshold varint



4
packet login plugin request
login / toClient / packet_login_plugin_request (0x04)

Field NameField TypeNotes
messageId varint
channel string
data restBuffer



Type
packet
login / toClient / packet

Field NameField TypeNotes
name
varint enum
0disconnect
1encryption begin
2success
3compress
4login plugin request
params

if name
is disconnect packet_disconnect
is encryption begin packet_encryption_begin
is success packet_success
is compress packet_compress
is login plugin request packet_login_plugin_request



Table of Contents

KeyName
Typepacket_login_start
0x1packet_encryption_begin
0x2packet_login_plugin_response
Typepacket


0
packet login start
login / toServer / packet_login_start (0x00)

Field NameField TypeNotes
username string
playerUUID
optional
UUID



1
packet encryption begin
login / toServer / packet_encryption_begin (0x01)

Field NameField TypeNotes



2
packet login plugin response
login / toServer / packet_login_plugin_response (0x02)

Field NameField TypeNotes
messageId varint
data
optional
restBuffer



Type
packet
login / toServer / packet

Field NameField TypeNotes
name
varint enum
0login start
1encryption begin
2login plugin response
params

if name
is login start packet_login_start
is encryption begin packet_encryption_begin
is login plugin response packet_login_plugin_response



Table of Contents

KeyName
Typepacket_spawn_entity
0x1packet_spawn_entity_experience_orb
0x2packet_named_entity_spawn
0x3packet_animation
0x4packet_statistics
0x65packet_advancements
0x6packet_block_break_animation
0x7packet_tile_entity_data
0x8packet_block_action
0x9packet_block_change
0xapacket_boss_bar
0xbpacket_difficulty
0xdpacket_tab_complete
0xepacket_declare_commands
0x37packet_face_player
0x62packet_nbt_query_response
0x3fpacket_multi_block_change
0xfpacket_close_window
0x2cpacket_open_window
0x10packet_window_items
0x11packet_craft_progress_bar
0x12packet_set_slot
0x13packet_set_cooldown
0x14packet_chat_suggestions
0x15packet_custom_payload
0x16packet_hide_message
0x17packet_kick_disconnect
0x18packet_profileless_chat
0x19packet_entity_status
0x1apacket_explosion
0x1bpacket_unload_chunk
0x1cpacket_game_state_change
0x1dpacket_open_horse_window
0x1fpacket_keep_alive
0x20packet_map_chunk
0x21packet_world_event
0x22packet_world_particles
0x23packet_update_light
0x24packet_login
0x25packet_map
0x26packet_trade_list
0x27packet_rel_entity_move
0x28packet_entity_move_look
0x29packet_entity_look
0x2apacket_vehicle_move
0x2bpacket_open_book
0x2dpacket_open_sign_entity
0x2fpacket_craft_recipe_response
0x30packet_abilities
0x31packet_player_chat
0x32packet_end_combat_event
Typepacket_enter_combat_event
0x34packet_death_combat_event
0x35packet_player_remove
0x36packet_player_info
0x38packet_position
0x39packet_unlock_recipes
0x3apacket_entity_destroy
0x3bpacket_remove_entity_effect
0x3cpacket_resource_pack_send
0x3dpacket_respawn
0x3epacket_entity_head_rotation
0x48packet_camera
0x49packet_held_item_slot
0x4apacket_update_view_position
0x4bpacket_update_view_distance
0x4dpacket_scoreboard_display_objective
0x4epacket_entity_metadata
0x4fpacket_attach_entity
0x50packet_entity_velocity
0x51packet_entity_equipment
0x52packet_experience
0x53packet_update_health
0x54packet_scoreboard_objective
0x55packet_set_passengers
0x56packet_teams
0x57packet_scoreboard_score
0x4cpacket_spawn_position
0x5apacket_update_time
0x5dpacket_entity_sound_effect
0x5fpacket_stop_sound
0x5epacket_sound_effect
0x60packet_system_chat
0x61packet_playerlist_header
0x63packet_collect
0x64packet_entity_teleport
0x66packet_entity_update_attributes
0x67packet_feature_flags
0x68packet_entity_effect
0x40packet_select_advancement_tab
0x41packet_server_data
0x69packet_declare_recipes
0x6apacket_tags
0x5packet_acknowledge_player_digging
0xcpacket_clear_titles
0x1epacket_initialize_world_border
0x42packet_action_bar
0x43packet_world_border_center
0x44packet_world_border_lerp_size
0x45packet_world_border_size
0x46packet_world_border_warning_delay
0x47packet_world_border_warning_reach
0x2epacket_ping
0x59packet_set_title_subtitle
0x5bpacket_set_title_text
0x5cpacket_set_title_time
0x58packet_simulation_distance
Typepacket


0
packet spawn entity
play / toClient / packet_spawn_entity (0x00)

Field NameField TypeNotes
entityId varint
objectUUID UUID
type varint
x f64
y f64
z f64
pitch i8
yaw i8
headPitch i8
objectData varint
velocityX i16
velocityY i16
velocityZ i16



1
packet spawn entity experience orb
play / toClient / packet_spawn_entity_experience_orb (0x01)

Field NameField TypeNotes
entityId varint
x f64
y f64
z f64
count i16



2
packet named entity spawn
play / toClient / packet_named_entity_spawn (0x02)

Field NameField TypeNotes
entityId varint
playerUUID UUID
x f64
y f64
z f64
yaw i8
pitch i8



3
packet animation
play / toClient / packet_animation (0x03)

Field NameField TypeNotes
entityId varint
animation u8



4
packet statistics
play / toClient / packet_statistics (0x04)

Field NameField TypeNotes
entries lengthvarint
entries
array
categoryId varint
statisticId varint
value varint



101
packet advancements
play / toClient / packet_advancements (0x65)

Field NameField TypeNotes
reset bool
advancementMapping lengthvarint
advancementMapping
array
key string
value
parentId
optional
string
displayData
optional
title string
description string
icon slot
frameType varint
backgroundTexture

if flags/has background texture
is 1 string
default void
xCord f32
yCord f32
criteria lengthvarint
criteria
array
key string
value void
requirements lengthvarint
requirements
array
__755 lengthvarint
__755
array
string
identifiers lengthvarint
identifiers
array
string
progressMapping lengthvarint
progressMapping
array
key string
value lengthvarint
value
array
criterionIdentifier string
criterionProgress
optional
i64



6
packet block break animation
play / toClient / packet_block_break_animation (0x06)

Field NameField TypeNotes
entityId varint
location position
destroyStage i8



7
packet tile entity data
play / toClient / packet_tile_entity_data (0x07)

Field NameField TypeNotes
location position
action varint
nbtData optionalNbt



8
packet block action
play / toClient / packet_block_action (0x08)

Field NameField TypeNotes
location position
byte1 u8
byte2 u8
blockId varint



9
packet block change
play / toClient / packet_block_change (0x09)

Field NameField TypeNotes
location position
type varint



10
packet boss bar
play / toClient / packet_boss_bar (0x0a)

Field NameField TypeNotes
entityUUID UUID
action varint
title

if action
is 0 string
is 3 string
default void
health

if action
is 0 f32
is 2 f32
default void
color

if action
is 0 varint
is 4 varint
default void
dividers

if action
is 0 varint
is 4 varint
default void
flags

if action
is 0 u8
is 5 u8
default void



11
packet difficulty
play / toClient / packet_difficulty (0x0b)

Field NameField TypeNotes
difficulty u8
difficultyLocked bool



13
packet tab complete
play / toClient / packet_tab_complete (0x0d)

Field NameField TypeNotes
transactionId varint
start varint
length varint
matches lengthvarint
matches
array
match string
tooltip
optional
string



14
packet declare commands
play / toClient / packet_declare_commands (0x0e)

Field NameField TypeNotes
nodes lengthvarint
nodes
array
command_node
rootIndex varint



55
packet face player
play / toClient / packet_face_player (0x37)

Field NameField TypeNotes
feet eyes varint
x f64
y f64
z f64
isEntity bool
entityId

if isEntity
is true varint
default void
entity feet eyes

if isEntity
is true string
default void



98
packet nbt query response
play / toClient / packet_nbt_query_response (0x62)

Field NameField TypeNotes
transactionId varint
nbt optionalNbt



63
packet multi block change
play / toClient / packet_multi_block_change (0x3f)

Field NameField TypeNotes
suppressLightUpdates bool
records lengthvarint
records
array
varint



15
packet close window
play / toClient / packet_close_window (0x0f)

Field NameField TypeNotes
windowId u8



44
packet open window
play / toClient / packet_open_window (0x2c)

Field NameField TypeNotes
windowId varint
inventoryType varint
windowTitle string



16
packet window items
play / toClient / packet_window_items (0x10)

Field NameField TypeNotes
windowId u8
stateId varint
items lengthvarint
items
array
slot
carriedItem slot



17
packet craft progress bar
play / toClient / packet_craft_progress_bar (0x11)

Field NameField TypeNotes
windowId u8
property i16
value i16



18
packet set slot
play / toClient / packet_set_slot (0x12)

Field NameField TypeNotes
windowId i8
stateId varint
slot i16
item slot



19
packet set cooldown
play / toClient / packet_set_cooldown (0x13)

Field NameField TypeNotes
itemID varint
cooldownTicks varint



20
packet chat suggestions
play / toClient / packet_chat_suggestions (0x14)

Field NameField TypeNotes
action varint
entries lengthvarint
entries
array
string



21
packet custom payload
play / toClient / packet_custom_payload (0x15)

Field NameField TypeNotes
channel string
data restBuffer



22
packet hide message
play / toClient / packet_hide_message (0x16)

Field NameField TypeNotes
id varint
signature

if id
default void



23
packet kick disconnect
play / toClient / packet_kick_disconnect (0x17)

Field NameField TypeNotes
reason string



24
packet profileless chat
play / toClient / packet_profileless_chat (0x18)

Field NameField TypeNotes
message string
type varint
name string
target
optional
string



25
packet entity status
play / toClient / packet_entity_status (0x19)

Field NameField TypeNotes
entityId i32
entityStatus i8



26
packet explosion
play / toClient / packet_explosion (0x1a)

Field NameField TypeNotes
x f64
y f64
z f64
radius f32
affectedBlockOffsets lengthvarint
affectedBlockOffsets
array
x i8
y i8
z i8
playerMotionX f32
playerMotionY f32
playerMotionZ f32



27
packet unload chunk
play / toClient / packet_unload_chunk (0x1b)

Field NameField TypeNotes
chunkX i32
chunkZ i32



28
packet game state change
play / toClient / packet_game_state_change (0x1c)

Field NameField TypeNotes
reason u8
gameMode f32



29
packet open horse window
play / toClient / packet_open_horse_window (0x1d)

Field NameField TypeNotes
windowId u8
nbSlots varint
entityId i32



31
packet keep alive
play / toClient / packet_keep_alive (0x1f)

Field NameField TypeNotes
keepAliveId i64



32
packet map chunk
play / toClient / packet_map_chunk (0x20)

Field NameField TypeNotes
x i32
z i32
heightmaps nbt
blockEntities lengthvarint
blockEntities
array
chunkBlockEntity
trustEdges bool
skyLightMask lengthvarint
skyLightMask
array
i64
blockLightMask lengthvarint
blockLightMask
array
i64
emptySkyLightMask lengthvarint
emptySkyLightMask
array
i64
emptyBlockLightMask lengthvarint
emptyBlockLightMask
array
i64
skyLight lengthvarint
skyLight
array
__942 lengthvarint
__942
array
u8
blockLight lengthvarint
blockLight
array
__944 lengthvarint
__944
array
u8



33
packet world event
play / toClient / packet_world_event (0x21)

Field NameField TypeNotes
effectId i32
location position
data i32
global bool



34
packet world particles
play / toClient / packet_world_particles (0x22)

Field NameField TypeNotes
particleId varint
longDistance bool
x f64
y f64
z f64
offsetX f32
offsetY f32
offsetZ f32
particleData f32
particles i32



35
packet update light
play / toClient / packet_update_light (0x23)

Field NameField TypeNotes
chunkX varint
chunkZ varint
trustEdges bool
skyLightMask lengthvarint
skyLightMask
array
i64
blockLightMask lengthvarint
blockLightMask
array
i64
emptySkyLightMask lengthvarint
emptySkyLightMask
array
i64
emptyBlockLightMask lengthvarint
emptyBlockLightMask
array
i64
skyLight lengthvarint
skyLight
array
__976 lengthvarint
__976
array
u8
blockLight lengthvarint
blockLight
array
__978 lengthvarint
__978
array
u8



36
packet login
play / toClient / packet_login (0x24)

Field NameField TypeNotes
entityId i32
isHardcore bool
gameMode u8
previousGameMode i8
worldNames lengthvarint
worldNames
array
string
dimensionCodec nbt
worldType string
worldName string
hashedSeed i64
maxPlayers varint
viewDistance varint
simulationDistance varint
reducedDebugInfo bool
enableRespawnScreen bool
isDebug bool
isFlat bool
death
optional
dimensionName string
location position



37
packet map
play / toClient / packet_map (0x25)

Field NameField TypeNotes
itemDamage varint
scale i8
locked bool
icons lengthvarint
icons
array
type varint
x i8
z i8
direction u8
displayName
optional
string
columns u8
rows

if columns
is 0 void
default u8
x

if columns
is 0 void
default u8
y

if columns
is 0 void
default u8
data

if columns
is 0 void



38
packet trade list
play / toClient / packet_trade_list (0x26)

Field NameField TypeNotes
windowId varint
trades lengthvarint
trades
array
inputItem1 slot
outputItem slot
inputItem2 slot
tradeDisabled bool
nbTradeUses i32
maximumNbTradeUses i32
xp i32
specialPrice i32
priceMultiplier f32
demand i32
villagerLevel varint
experience varint
isRegularVillager bool
canRestock bool



39
packet rel entity move
play / toClient / packet_rel_entity_move (0x27)

Field NameField TypeNotes
entityId varint
dX i16
dY i16
dZ i16
onGround bool



40
packet entity move look
play / toClient / packet_entity_move_look (0x28)

Field NameField TypeNotes
entityId varint
dX i16
dY i16
dZ i16
yaw i8
pitch i8
onGround bool



41
packet entity look
play / toClient / packet_entity_look (0x29)

Field NameField TypeNotes
entityId varint
yaw i8
pitch i8
onGround bool



42
packet vehicle move
play / toClient / packet_vehicle_move (0x2a)

Field NameField TypeNotes
x f64
y f64
z f64
yaw f32
pitch f32



43
packet open book
play / toClient / packet_open_book (0x2b)

Field NameField TypeNotes
hand varint



45
packet open sign entity
play / toClient / packet_open_sign_entity (0x2d)

Field NameField TypeNotes
location position



47
packet craft recipe response
play / toClient / packet_craft_recipe_response (0x2f)

Field NameField TypeNotes
windowId i8
recipe string



48
packet abilities
play / toClient / packet_abilities (0x30)

Field NameField TypeNotes
flags i8
flyingSpeed f32
walkingSpeed f32



49
packet player chat
play / toClient / packet_player_chat (0x31)

Field NameField TypeNotes
senderUuid UUID
index varint
plainMessage string
timestamp i64
salt i64
previousMessages previousMessages
unsignedChatContent
optional
string
filterType varint
filterTypeMask

if filterType
is 2 lengthvarint
is 2
array
i64
default void
type varint
networkName string
networkTargetName
optional
string



50
packet end combat event
play / toClient / packet_end_combat_event (0x32)

Field NameField TypeNotes
duration varint
entityId i32



52
packet death combat event
play / toClient / packet_death_combat_event (0x34)

Field NameField TypeNotes
playerId varint
entityId i32
message string



53
packet player remove
play / toClient / packet_player_remove (0x35)

Field NameField TypeNotes
players lengthvarint
players
array
UUID



54
packet player info
play / toClient / packet_player_info (0x36)

Field NameField TypeNotes
action i8
data lengthvarint
data
array
uuid UUID
player

if ../action
is 1 game_profile
is 3 game_profile
is 5 game_profile
is 7 game_profile
is 9 game_profile
is 11 game_profile
is 13 game_profile
is 15 game_profile
is 17 game_profile
is 19 game_profile
is 21 game_profile
is 23 game_profile
is 25 game_profile
is 27 game_profile
is 29 game_profile
is 31 game_profile
is 33 game_profile
is 35 game_profile
is 37 game_profile
is 39 game_profile
is 41 game_profile
is 43 game_profile
is 45 game_profile
is 47 game_profile
is 49 game_profile
is 51 game_profile
is 53 game_profile
is 55 game_profile
is 57 game_profile
is 59 game_profile
is 61 game_profile
is 63 game_profile
default void
chatSession

if ../action
is 2 chat_session
is 3 chat_session
is 6 chat_session
is 7 chat_session
is 10 chat_session
is 11 chat_session
is 14 chat_session
is 15 chat_session
is 18 chat_session
is 19 chat_session
is 22 chat_session
is 23 chat_session
is 26 chat_session
is 27 chat_session
is 30 chat_session
is 31 chat_session
is 34 chat_session
is 35 chat_session
is 38 chat_session
is 39 chat_session
is 42 chat_session
is 43 chat_session
is 46 chat_session
is 47 chat_session
is 50 chat_session
is 51 chat_session
is 54 chat_session
is 55 chat_session
is 58 chat_session
is 59 chat_session
is 62 chat_session
is 63 chat_session
default void
gamemode

if ../action
is 4 varint
is 5 varint
is 6 varint
is 7 varint
is 12 varint
is 13 varint
is 14 varint
is 15 varint
is 20 varint
is 21 varint
is 22 varint
is 23 varint
is 28 varint
is 29 varint
is 30 varint
is 31 varint
is 36 varint
is 37 varint
is 38 varint
is 39 varint
is 44 varint
is 45 varint
is 46 varint
is 47 varint
is 52 varint
is 53 varint
is 54 varint
is 55 varint
is 60 varint
is 61 varint
is 62 varint
is 63 varint
default void
listed

if ../action
is 8 bool
is 9 bool
is 10 bool
is 11 bool
is 12 bool
is 13 bool
is 14 bool
is 15 bool
is 24 bool
is 25 bool
is 26 bool
is 27 bool
is 28 bool
is 29 bool
is 30 bool
is 31 bool
is 40 bool
is 41 bool
is 42 bool
is 43 bool
is 44 bool
is 45 bool
is 46 bool
is 47 bool
is 56 bool
is 57 bool
is 58 bool
is 59 bool
is 60 bool
is 61 bool
is 62 bool
is 63 bool
default void
latency

if ../action
is 16 varint
is 17 varint
is 18 varint
is 19 varint
is 20 varint
is 21 varint
is 22 varint
is 23 varint
is 24 varint
is 25 varint
is 26 varint
is 27 varint
is 28 varint
is 29 varint
is 30 varint
is 31 varint
is 48 varint
is 49 varint
is 50 varint
is 51 varint
is 52 varint
is 53 varint
is 54 varint
is 55 varint
is 56 varint
is 57 varint
is 58 varint
is 59 varint
is 60 varint
is 61 varint
is 62 varint
is 63 varint
default void
displayName

if ../action
default void



56
packet position
play / toClient / packet_position (0x38)

Field NameField TypeNotes
x f64
y f64
z f64
yaw f32
pitch f32
flags i8
teleportId varint
dismountVehicle bool



57
packet unlock recipes
play / toClient / packet_unlock_recipes (0x39)

Field NameField TypeNotes
action varint
craftingBookOpen bool
filteringCraftable bool
smeltingBookOpen bool
filteringSmeltable bool
blastFurnaceOpen bool
filteringBlastFurnace bool
smokerBookOpen bool
filteringSmoker bool
recipes1 lengthvarint
recipes1
array
string
recipes2

if action
is 0 lengthvarint
is 0
array
string
default void



58
packet entity destroy
play / toClient / packet_entity_destroy (0x3a)

Field NameField TypeNotes
entityIds lengthvarint
entityIds
array
varint



59
packet remove entity effect
play / toClient / packet_remove_entity_effect (0x3b)

Field NameField TypeNotes
entityId varint
effectId varint



60
packet resource pack send
play / toClient / packet_resource_pack_send (0x3c)

Field NameField TypeNotes
url string
hash string
forced bool
promptMessage
optional
string



61
packet respawn
play / toClient / packet_respawn (0x3d)

Field NameField TypeNotes
dimension string
worldName string
hashedSeed i64
gamemode i8
previousGamemode u8
isDebug bool
isFlat bool
copyMetadata bool
death
optional
dimensionName string
location position



62
packet entity head rotation
play / toClient / packet_entity_head_rotation (0x3e)

Field NameField TypeNotes
entityId varint
headYaw i8



72
packet camera
play / toClient / packet_camera (0x48)

Field NameField TypeNotes
cameraId varint



73
packet held item slot
play / toClient / packet_held_item_slot (0x49)

Field NameField TypeNotes
slot i8



74
packet update view position
play / toClient / packet_update_view_position (0x4a)

Field NameField TypeNotes
chunkX varint
chunkZ varint



75
packet update view distance
play / toClient / packet_update_view_distance (0x4b)

Field NameField TypeNotes
viewDistance varint



77
packet scoreboard display objective
play / toClient / packet_scoreboard_display_objective (0x4d)

Field NameField TypeNotes
position i8
name string



78
packet entity metadata
play / toClient / packet_entity_metadata (0x4e)

Field NameField TypeNotes
entityId varint
metadata entityMetadata



79
packet attach entity
play / toClient / packet_attach_entity (0x4f)

Field NameField TypeNotes
entityId i32
vehicleId i32



80
packet entity velocity
play / toClient / packet_entity_velocity (0x50)

Field NameField TypeNotes
entityId varint
velocityX i16
velocityY i16
velocityZ i16



81
packet entity equipment
play / toClient / packet_entity_equipment (0x51)

Field NameField TypeNotes
entityId varint



82
packet experience
play / toClient / packet_experience (0x52)

Field NameField TypeNotes
experienceBar f32
totalExperience varint
level varint



83
packet update health
play / toClient / packet_update_health (0x53)

Field NameField TypeNotes
health f32
food varint
foodSaturation f32



84
packet scoreboard objective
play / toClient / packet_scoreboard_objective (0x54)

Field NameField TypeNotes
name string
action i8
displayText

if action
is 0 string
is 2 string
default void
type

if action
is 0 varint
is 2 varint
default void



85
packet set passengers
play / toClient / packet_set_passengers (0x55)

Field NameField TypeNotes
entityId varint
passengers lengthvarint
passengers
array
varint



86
packet teams
play / toClient / packet_teams (0x56)

Field NameField TypeNotes
team string
mode i8
name

if mode
is 0 string
is 2 string
default void
friendlyFire

if mode
is 0 i8
is 2 i8
default void
nameTagVisibility

if mode
is 0 string
is 2 string
default void
collisionRule

if mode
is 0 string
is 2 string
default void
formatting

if mode
is 0 varint
is 2 varint
default void
prefix

if mode
is 0 string
is 2 string
default void
suffix

if mode
is 0 string
is 2 string
default void
players

if mode
is 0 lengthvarint
is 0
array
string
is 3 lengthvarint
is 3
array
string
is 4 lengthvarint
is 4
array
string
default void



87
packet scoreboard score
play / toClient / packet_scoreboard_score (0x57)

Field NameField TypeNotes
itemName string
action varint
scoreName string
value

if action
is 1 void
default varint



76
packet spawn position
play / toClient / packet_spawn_position (0x4c)

Field NameField TypeNotes
location position
angle f32



90
packet update time
play / toClient / packet_update_time (0x5a)

Field NameField TypeNotes
age i64
time i64



93
packet entity sound effect
play / toClient / packet_entity_sound_effect (0x5d)

Field NameField TypeNotes
soundId varint
soundEvent

if soundId
is 0
resource string
range
optional
f32
default void
soundCategory soundSource
entityId varint
volume f32
pitch f32
seed i64



95
packet stop sound
play / toClient / packet_stop_sound (0x5f)

Field NameField TypeNotes
flags i8
source

if flags
is 1 varint
is 3 varint
default void
sound

if flags
is 2 string
is 3 string
default void



94
packet sound effect
play / toClient / packet_sound_effect (0x5e)

Field NameField TypeNotes
soundId varint
soundEvent

if soundId
is 0
resource string
range
optional
f32
default void
soundCategory soundSource
x i32
y i32
z i32
volume f32
pitch f32
seed i64



96
packet system chat
play / toClient / packet_system_chat (0x60)

Field NameField TypeNotes
content string
isActionBar bool



97
packet playerlist header
play / toClient / packet_playerlist_header (0x61)

Field NameField TypeNotes
header string
footer string



99
packet collect
play / toClient / packet_collect (0x63)

Field NameField TypeNotes
collectedEntityId varint
collectorEntityId varint
pickupItemCount varint



100
packet entity teleport
play / toClient / packet_entity_teleport (0x64)

Field NameField TypeNotes
entityId varint
x f64
y f64
z f64
yaw i8
pitch i8
onGround bool



102
packet entity update attributes
play / toClient / packet_entity_update_attributes (0x66)

Field NameField TypeNotes
entityId varint
properties lengthvarint
properties
array
key string
value f64
modifiers lengthvarint
modifiers
array
uuid UUID
amount f64
operation i8



103
packet feature flags
play / toClient / packet_feature_flags (0x67)

Field NameField TypeNotes
features lengthvarint
features
array
string



104
packet entity effect
play / toClient / packet_entity_effect (0x68)

Field NameField TypeNotes
entityId varint
effectId varint
amplifier i8
duration varint
hideParticles i8
factorCodec
optional
nbt



64
packet select advancement tab
play / toClient / packet_select_advancement_tab (0x40)

Field NameField TypeNotes
id
optional
string



65
packet server data
play / toClient / packet_server_data (0x41)

Field NameField TypeNotes
motd
optional
string
icon
optional
string
enforcesSecureChat bool



105
packet declare recipes
play / toClient / packet_declare_recipes (0x69)

Field NameField TypeNotes
recipes lengthvarint
recipes
array
type string
recipeId string
data

if type
is minecraft:crafting shapeless
group string
category varint
ingredients lengthvarint
ingredients
array
ingredient
result slot
is minecraft:crafting shaped
width varint
height varint
group string
category varint
Length for ingredients below is width from above
ingredients
array
Length for __1672 below is height from above
__1672
array
ingredient
result slot
is minecraft:crafting special armordye minecraft_simple_recipe_format
is minecraft:crafting special bookcloning minecraft_simple_recipe_format
is minecraft:crafting special mapcloning minecraft_simple_recipe_format
is minecraft:crafting special mapextending minecraft_simple_recipe_format
is minecraft:crafting special firework rocket minecraft_simple_recipe_format
is minecraft:crafting special firework star minecraft_simple_recipe_format
is minecraft:crafting special firework star fade minecraft_simple_recipe_format
is minecraft:crafting special repairitem minecraft_simple_recipe_format
is minecraft:crafting special tippedarrow minecraft_simple_recipe_format
is minecraft:crafting special bannerduplicate minecraft_simple_recipe_format
is minecraft:crafting special banneraddpattern minecraft_simple_recipe_format
is minecraft:crafting special shielddecoration minecraft_simple_recipe_format
is minecraft:crafting special shulkerboxcoloring minecraft_simple_recipe_format
is minecraft:crafting special suspiciousstew minecraft_simple_recipe_format
is minecraft:smelting minecraft_smelting_format
is minecraft:blasting minecraft_smelting_format
is minecraft:smoking minecraft_smelting_format
is minecraft:campfire cooking minecraft_smelting_format
is minecraft:stonecutting
group string
ingredient ingredient
result slot
is minecraft:smithing
base ingredient
addition ingredient
result slot



106
packet tags
play / toClient / packet_tags (0x6a)

Field NameField TypeNotes
tags lengthvarint
tags
array
tagType string
tags tags



5
packet acknowledge player digging
play / toClient / packet_acknowledge_player_digging (0x05)

Field NameField TypeNotes
sequenceId varint



12
packet clear titles
play / toClient / packet_clear_titles (0x0c)

Field NameField TypeNotes
reset bool



30
packet initialize world border
play / toClient / packet_initialize_world_border (0x1e)

Field NameField TypeNotes
x f64
z f64
oldDiameter f64
newDiameter f64
speed varint
portalTeleportBoundary varint
warningBlocks varint
warningTime varint



66
packet action bar
play / toClient / packet_action_bar (0x42)

Field NameField TypeNotes
text string



67
packet world border center
play / toClient / packet_world_border_center (0x43)

Field NameField TypeNotes
x f64
z f64



68
packet world border lerp size
play / toClient / packet_world_border_lerp_size (0x44)

Field NameField TypeNotes
oldDiameter f64
newDiameter f64
speed varint



69
packet world border size
play / toClient / packet_world_border_size (0x45)

Field NameField TypeNotes
diameter f64



70
packet world border warning delay
play / toClient / packet_world_border_warning_delay (0x46)

Field NameField TypeNotes
warningTime varint



71
packet world border warning reach
play / toClient / packet_world_border_warning_reach (0x47)

Field NameField TypeNotes
warningBlocks varint



46
packet ping
play / toClient / packet_ping (0x2e)

Field NameField TypeNotes
id i32



89
packet set title subtitle
play / toClient / packet_set_title_subtitle (0x59)

Field NameField TypeNotes
text string



91
packet set title text
play / toClient / packet_set_title_text (0x5b)

Field NameField TypeNotes
text string



92
packet set title time
play / toClient / packet_set_title_time (0x5c)

Field NameField TypeNotes
fadeIn i32
stay i32
fadeOut i32



88
packet simulation distance
play / toClient / packet_simulation_distance (0x58)

Field NameField TypeNotes
distance varint



Type
packet
play / toClient / packet

Field NameField TypeNotes
name
varint enum
0spawn entity
1spawn entity experience orb
2named entity spawn
3animation
4statistics
5acknowledge player digging
6block break animation
7tile entity data
8block action
9block change
10boss bar
11difficulty
12clear titles
13tab complete
14declare commands
15close window
16window items
17craft progress bar
18set slot
19set cooldown
20chat suggestions
21custom payload
22hide message
23kick disconnect
24profileless chat
25entity status
26explosion
27unload chunk
28game state change
29open horse window
30initialize world border
31keep alive
32map chunk
33world event
34world particles
35update light
36login
37map
38trade list
39rel entity move
40entity move look
41entity look
42vehicle move
43open book
44open window
45open sign entity
46ping
47craft recipe response
48abilities
49player chat
50end combat event
51enter combat event
52death combat event
53player remove
54player info
55face player
56position
57unlock recipes
58entity destroy
59remove entity effect
60resource pack send
61respawn
62entity head rotation
63multi block change
64select advancement tab
65server data
66action bar
67world border center
68world border lerp size
69world border size
70world border warning delay
71world border warning reach
72camera
73held item slot
74update view position
75update view distance
76spawn position
77scoreboard display objective
78entity metadata
79attach entity
80entity velocity
81entity equipment
82experience
83update health
84scoreboard objective
85set passengers
86teams
87scoreboard score
88simulation distance
89set title subtitle
90update time
91set title text
92set title time
93entity sound effect
94sound effect
95stop sound
96system chat
97playerlist header
98nbt query response
99collect
100entity teleport
101advancements
102entity update attributes
103feature flags
104entity effect
105declare recipes
106tags
params

if name
is spawn entity packet_spawn_entity
is spawn entity experience orb packet_spawn_entity_experience_orb
is named entity spawn packet_named_entity_spawn
is animation packet_animation
is statistics packet_statistics
is acknowledge player digging packet_acknowledge_player_digging
is block break animation packet_block_break_animation
is tile entity data packet_tile_entity_data
is block action packet_block_action
is block change packet_block_change
is boss bar packet_boss_bar
is difficulty packet_difficulty
is clear titles packet_clear_titles
is tab complete packet_tab_complete
is declare commands packet_declare_commands
is close window packet_close_window
is window items packet_window_items
is craft progress bar packet_craft_progress_bar
is set slot packet_set_slot
is set cooldown packet_set_cooldown
is chat suggestions packet_chat_suggestions
is custom payload packet_custom_payload
is hide message packet_hide_message
is kick disconnect packet_kick_disconnect
is profileless chat packet_profileless_chat
is entity status packet_entity_status
is explosion packet_explosion
is unload chunk packet_unload_chunk
is game state change packet_game_state_change
is open horse window packet_open_horse_window
is initialize world border packet_initialize_world_border
is keep alive packet_keep_alive
is map chunk packet_map_chunk
is world event packet_world_event
is world particles packet_world_particles
is update light packet_update_light
is login packet_login
is map packet_map
is trade list packet_trade_list
is rel entity move packet_rel_entity_move
is entity move look packet_entity_move_look
is entity look packet_entity_look
is vehicle move packet_vehicle_move
is open book packet_open_book
is open window packet_open_window
is open sign entity packet_open_sign_entity
is ping packet_ping
is craft recipe response packet_craft_recipe_response
is abilities packet_abilities
is player chat packet_player_chat
is end combat event packet_end_combat_event
is enter combat event packet_enter_combat_event
is death combat event packet_death_combat_event
is player remove packet_player_remove
is player info packet_player_info
is face player packet_face_player
is position packet_position
is unlock recipes packet_unlock_recipes
is entity destroy packet_entity_destroy
is remove entity effect packet_remove_entity_effect
is resource pack send packet_resource_pack_send
is respawn packet_respawn
is entity head rotation packet_entity_head_rotation
is multi block change packet_multi_block_change
is select advancement tab packet_select_advancement_tab
is server data packet_server_data
is action bar packet_action_bar
is world border center packet_world_border_center
is world border lerp size packet_world_border_lerp_size
is world border size packet_world_border_size
is world border warning delay packet_world_border_warning_delay
is world border warning reach packet_world_border_warning_reach
is camera packet_camera
is held item slot packet_held_item_slot
is update view position packet_update_view_position
is update view distance packet_update_view_distance
is spawn position packet_spawn_position
is scoreboard display objective packet_scoreboard_display_objective
is entity metadata packet_entity_metadata
is attach entity packet_attach_entity
is entity velocity packet_entity_velocity
is entity equipment packet_entity_equipment
is experience packet_experience
is update health packet_update_health
is scoreboard objective packet_scoreboard_objective
is set passengers packet_set_passengers
is teams packet_teams
is scoreboard score packet_scoreboard_score
is simulation distance packet_simulation_distance
is set title subtitle packet_set_title_subtitle
is update time packet_update_time
is set title text packet_set_title_text
is set title time packet_set_title_time
is entity sound effect packet_entity_sound_effect
is sound effect packet_sound_effect
is stop sound packet_stop_sound
is system chat packet_system_chat
is playerlist header packet_playerlist_header
is nbt query response packet_nbt_query_response
is collect packet_collect
is entity teleport packet_entity_teleport
is advancements packet_advancements
is entity update attributes packet_entity_update_attributes
is feature flags packet_feature_flags
is entity effect packet_entity_effect
is declare recipes packet_declare_recipes
is tags packet_tags



Table of Contents

KeyName
Typepacket_teleport_confirm
0x1packet_query_block_nbt
0x4packet_chat_command
0x5packet_chat_message
0x2packet_set_difficulty
0x3packet_message_acknowledgement
0xdpacket_edit_book
0xepacket_query_entity_nbt
0x19packet_pick_item
0x23packet_name_item
0x26packet_select_trade
0x27packet_set_beacon_effect
0x29packet_update_command_block
0x2apacket_update_command_block_minecart
0x2dpacket_update_structure_block
0x8packet_tab_complete
0x6packet_client_command
0x7packet_settings
0x9packet_enchant_item
0xapacket_window_click
0xbpacket_close_window
0xcpacket_custom_payload
0xfpacket_use_entity
0x10packet_generate_structure
0x11packet_keep_alive
0x12packet_lock_difficulty
0x13packet_position
0x14packet_position_look
0x15packet_look
0x16packet_flying
0x17packet_vehicle_move
0x18packet_steer_boat
0x1apacket_craft_recipe_request
0x1bpacket_abilities
0x1cpacket_block_dig
0x1dpacket_entity_action
0x1epacket_steer_vehicle
0x22packet_displayed_recipe
0x21packet_recipe_book
0x24packet_resource_pack_receive
0x28packet_held_item_slot
0x2bpacket_set_creative_slot
0x2cpacket_update_jigsaw_block
0x2epacket_update_sign
0x2fpacket_arm_animation
0x30packet_spectate
0x31packet_block_place
0x32packet_use_item
0x25packet_advancement_tab
0x1fpacket_pong
0x20packet_chat_session_update
Typepacket


0
packet teleport confirm
play / toServer / packet_teleport_confirm (0x00)

Field NameField TypeNotes
teleportId varint



1
packet query block nbt
play / toServer / packet_query_block_nbt (0x01)

Field NameField TypeNotes
transactionId varint
location position



4
packet chat command
play / toServer / packet_chat_command (0x04)

Field NameField TypeNotes
command string
timestamp i64
salt i64
argumentSignatures lengthvarint
argumentSignatures
array
argumentName string
messageCount varint



5
packet chat message
play / toServer / packet_chat_message (0x05)

Field NameField TypeNotes
message string
timestamp i64
salt i64
offset varint



2
packet set difficulty
play / toServer / packet_set_difficulty (0x02)

Field NameField TypeNotes
newDifficulty u8



3
packet message acknowledgement
play / toServer / packet_message_acknowledgement (0x03)

Field NameField TypeNotes
count varint



13
packet edit book
play / toServer / packet_edit_book (0x0d)

Field NameField TypeNotes
hand varint
pages lengthvarint
pages
array
string
title
optional
string



14
packet query entity nbt
play / toServer / packet_query_entity_nbt (0x0e)

Field NameField TypeNotes
transactionId varint
entityId varint



25
packet pick item
play / toServer / packet_pick_item (0x19)

Field NameField TypeNotes
slot varint



35
packet name item
play / toServer / packet_name_item (0x23)

Field NameField TypeNotes
name string



38
packet select trade
play / toServer / packet_select_trade (0x26)

Field NameField TypeNotes
slot varint



39
packet set beacon effect
play / toServer / packet_set_beacon_effect (0x27)

Field NameField TypeNotes
primary effect
optional
varint
secondary effect
optional
varint



41
packet update command block
play / toServer / packet_update_command_block (0x29)

Field NameField TypeNotes
location position
command string
mode varint
flags u8



42
packet update command block minecart
play / toServer / packet_update_command_block_minecart (0x2a)

Field NameField TypeNotes
entityId varint
command string
track output bool



45
packet update structure block
play / toServer / packet_update_structure_block (0x2d)

Field NameField TypeNotes
location position
action varint
mode varint
name string
offset x i8
offset y i8
offset z i8
size x i8
size y i8
size z i8
mirror varint
rotation varint
metadata string
integrity f32
seed varint
flags u8



8
packet tab complete
play / toServer / packet_tab_complete (0x08)

Field NameField TypeNotes
transactionId varint
text string



6
packet client command
play / toServer / packet_client_command (0x06)

Field NameField TypeNotes
actionId varint



7
packet settings
play / toServer / packet_settings (0x07)

Field NameField TypeNotes
locale string
viewDistance i8
chatFlags varint
chatColors bool
skinParts u8
mainHand varint
enableTextFiltering bool
enableServerListing bool



9
packet enchant item
play / toServer / packet_enchant_item (0x09)

Field NameField TypeNotes
windowId i8
enchantment i8



10
packet window click
play / toServer / packet_window_click (0x0a)

Field NameField TypeNotes
windowId u8
stateId varint
slot i16
mouseButton i8
mode varint
changedSlots lengthvarint
changedSlots
array
location i16
item slot
cursorItem slot



11
packet close window
play / toServer / packet_close_window (0x0b)

Field NameField TypeNotes
windowId u8



12
packet custom payload
play / toServer / packet_custom_payload (0x0c)

Field NameField TypeNotes
channel string
data restBuffer



15
packet use entity
play / toServer / packet_use_entity (0x0f)

Field NameField TypeNotes
target varint
mouse varint
x

if mouse
is 2 f32
default void
y

if mouse
is 2 f32
default void
z

if mouse
is 2 f32
default void
hand

if mouse
is 0 varint
is 2 varint
default void
sneaking bool



16
packet generate structure
play / toServer / packet_generate_structure (0x10)

Field NameField TypeNotes
location position
levels varint
keepJigsaws bool



17
packet keep alive
play / toServer / packet_keep_alive (0x11)

Field NameField TypeNotes
keepAliveId i64



18
packet lock difficulty
play / toServer / packet_lock_difficulty (0x12)

Field NameField TypeNotes
locked bool



19
packet position
play / toServer / packet_position (0x13)

Field NameField TypeNotes
x f64
y f64
z f64
onGround bool



20
packet position look
play / toServer / packet_position_look (0x14)

Field NameField TypeNotes
x f64
y f64
z f64
yaw f32
pitch f32
onGround bool



21
packet look
play / toServer / packet_look (0x15)

Field NameField TypeNotes
yaw f32
pitch f32
onGround bool



22
packet flying
play / toServer / packet_flying (0x16)

Field NameField TypeNotes
onGround bool



23
packet vehicle move
play / toServer / packet_vehicle_move (0x17)

Field NameField TypeNotes
x f64
y f64
z f64
yaw f32
pitch f32



24
packet steer boat
play / toServer / packet_steer_boat (0x18)

Field NameField TypeNotes
leftPaddle bool
rightPaddle bool



26
packet craft recipe request
play / toServer / packet_craft_recipe_request (0x1a)

Field NameField TypeNotes
windowId i8
recipe string
makeAll bool



27
packet abilities
play / toServer / packet_abilities (0x1b)

Field NameField TypeNotes
flags i8



28
packet block dig
play / toServer / packet_block_dig (0x1c)

Field NameField TypeNotes
status varint
location position
face i8
sequence varint



29
packet entity action
play / toServer / packet_entity_action (0x1d)

Field NameField TypeNotes
entityId varint
actionId varint
jumpBoost varint



30
packet steer vehicle
play / toServer / packet_steer_vehicle (0x1e)

Field NameField TypeNotes
sideways f32
forward f32
jump u8



34
packet displayed recipe
play / toServer / packet_displayed_recipe (0x22)

Field NameField TypeNotes
recipeId string



33
packet recipe book
play / toServer / packet_recipe_book (0x21)

Field NameField TypeNotes
bookId varint
bookOpen bool
filterActive bool



36
packet resource pack receive
play / toServer / packet_resource_pack_receive (0x24)

Field NameField TypeNotes
result varint



40
packet held item slot
play / toServer / packet_held_item_slot (0x28)

Field NameField TypeNotes
slotId i16



43
packet set creative slot
play / toServer / packet_set_creative_slot (0x2b)

Field NameField TypeNotes
slot i16
item slot



44
packet update jigsaw block
play / toServer / packet_update_jigsaw_block (0x2c)

Field NameField TypeNotes
location position
name string
target string
pool string
finalState string
jointType string



46
packet update sign
play / toServer / packet_update_sign (0x2e)

Field NameField TypeNotes
location position
text1 string
text2 string
text3 string
text4 string



47
packet arm animation
play / toServer / packet_arm_animation (0x2f)

Field NameField TypeNotes
hand varint



48
packet spectate
play / toServer / packet_spectate (0x30)

Field NameField TypeNotes
target UUID



49
packet block place
play / toServer / packet_block_place (0x31)

Field NameField TypeNotes
hand varint
location position
direction varint
cursorX f32
cursorY f32
cursorZ f32
insideBlock bool
sequence varint



50
packet use item
play / toServer / packet_use_item (0x32)

Field NameField TypeNotes
hand varint
sequence varint



37
packet advancement tab
play / toServer / packet_advancement_tab (0x25)

Field NameField TypeNotes
action varint
tabId

if action
is 0 string
is 1 void



31
packet pong
play / toServer / packet_pong (0x1f)

Field NameField TypeNotes
id i32



32
packet chat session update
play / toServer / packet_chat_session_update (0x20)

Field NameField TypeNotes
sessionUUID UUID
expireTime i64



Type
packet
play / toServer / packet

Field NameField TypeNotes
name
varint enum
0teleport confirm
1query block nbt
2set difficulty
3message acknowledgement
4chat command
5chat message
6client command
7settings
8tab complete
9enchant item
10window click
11close window
12custom payload
13edit book
14query entity nbt
15use entity
16generate structure
17keep alive
18lock difficulty
19position
20position look
21look
22flying
23vehicle move
24steer boat
25pick item
26craft recipe request
27abilities
28block dig
29entity action
30steer vehicle
31pong
32chat session update
33recipe book
34displayed recipe
35name item
36resource pack receive
37advancement tab
38select trade
39set beacon effect
40held item slot
41update command block
42update command block minecart
43set creative slot
44update jigsaw block
45update structure block
46update sign
47arm animation
48spectate
49block place
50use item
params

if name
is teleport confirm packet_teleport_confirm
is query block nbt packet_query_block_nbt
is set difficulty packet_set_difficulty
is message acknowledgement packet_message_acknowledgement
is chat command packet_chat_command
is chat message packet_chat_message
is client command packet_client_command
is settings packet_settings
is tab complete packet_tab_complete
is enchant item packet_enchant_item
is window click packet_window_click
is close window packet_close_window
is custom payload packet_custom_payload
is edit book packet_edit_book
is query entity nbt packet_query_entity_nbt
is use entity packet_use_entity
is generate structure packet_generate_structure
is keep alive packet_keep_alive
is lock difficulty packet_lock_difficulty
is position packet_position
is position look packet_position_look
is look packet_look
is flying packet_flying
is vehicle move packet_vehicle_move
is steer boat packet_steer_boat
is pick item packet_pick_item
is craft recipe request packet_craft_recipe_request
is abilities packet_abilities
is block dig packet_block_dig
is entity action packet_entity_action
is steer vehicle packet_steer_vehicle
is pong packet_pong
is chat session update packet_chat_session_update
is recipe book packet_recipe_book
is displayed recipe packet_displayed_recipe
is name item packet_name_item
is resource pack receive packet_resource_pack_receive
is advancement tab packet_advancement_tab
is select trade packet_select_trade
is set beacon effect packet_set_beacon_effect
is held item slot packet_held_item_slot
is update command block packet_update_command_block
is update command block minecart packet_update_command_block_minecart
is set creative slot packet_set_creative_slot
is update jigsaw block packet_update_jigsaw_block
is update structure block packet_update_structure_block
is update sign packet_update_sign
is arm animation packet_arm_animation
is spectate packet_spectate
is block place packet_block_place
is use item packet_use_item