Skip to main content Module game Copy item path Source ability_flags Flags for player abilities bitfield.
These match vanilla Minecraft’s ability flags. c_add_entity 🔒 Packet sent to spawn an entity (including players) for the client. c_animate 🔒 Clientbound animate packet - sent to play an entity animation. c_block_changed_ack 🔒 c_block_destruction 🔒 c_block_entity_data 🔒 Block entity data packet. c_block_event 🔒 c_block_update 🔒 c_bundle_delimiter 🔒 Clientbound bundle delimiter packet - marks the start/end of a packet bundle. c_change_difficulty 🔒 c_command_suggestions 🔒 c_commands 🔒 c_container_close 🔒 c_container_set_content 🔒 c_container_set_data 🔒 c_container_set_slot 🔒 c_cooldown 🔒 Clientbound item cooldown packet. c_damage_event 🔒 Clientbound damage event packet - tells the client an entity took damage. c_entity_event 🔒 c_entity_position_sync 🔒 c_game_event 🔒 c_hurt_animation 🔒 c_level_event 🔒 c_level_particles 🔒 c_login 🔒 c_move_entity 🔒 Packets for entity movement updates. c_move_vehicle 🔒 c_open_screen 🔒 c_open_sign_editor 🔒 c_player_abilities 🔒 c_player_combat_kill 🔒 c_player_info_update 🔒 c_player_look_at 🔒 c_player_position 🔒 Clientbound player position packet - sent to teleport a player. c_remove_entities 🔒 Packet sent to remove entities from the client. c_remove_mob_effect 🔒 Clientbound remove mob effect packet. c_remove_player_info 🔒 Packet to remove players from the player list (tab menu). c_respawn 🔒 Clientbound respawn packet - sent to respawn a player or change dimensions. c_rotate_head 🔒 Packet for updating an entity’s head rotation. c_section_blocks_update 🔒 c_set_camera 🔒 c_set_cursor_item 🔒 c_set_default_spawn_position 🔒 Clientbound default spawn position packet. c_set_entity_data 🔒 Clientbound set entity data packet - sent to sync entity metadata. c_set_entity_link 🔒 Clientbound set entity link packet. c_set_entity_motion 🔒 Clientbound set entity motion packet - sent to update entity velocity. c_set_equipment 🔒 Clientbound set equipment packet. c_set_experience 🔒 c_set_health 🔒 c_set_held_slot 🔒 c_set_passengers 🔒 Clientbound set passengers packet. c_set_player_inventory 🔒 Clientbound player inventory slot update packet. c_set_time 🔒 c_sound 🔒 c_tab_list 🔒 c_take_item_entity 🔒 Clientbound take item entity packet - sent when an entity picks up an item. c_teleport_entity 🔒 c_ticking_state 🔒 c_ticking_step 🔒 c_update_attributes 🔒 Clientbound update attributes packet - sent to sync entity attributes with modifiers. c_update_mob_effect 🔒 Clientbound update mob effect packet. chat 🔒 chunk 🔒 s_accept_teleportation 🔒 Serverbound accept teleportation packet - sent by client to acknowledge a teleport. s_attack 🔒 s_change_difficulty 🔒 s_change_game_mode 🔒 s_client_command 🔒 Serverbound client command packet - sent by the client to perform actions like respawning. s_client_tick_end 🔒 s_command_suggestion 🔒 s_container_button_click 🔒 s_container_click 🔒 s_container_close 🔒 s_container_slot_state_changed 🔒 s_interact 🔒 s_move_player 🔒 s_move_vehicle 🔒 s_pick_item_from_block 🔒 s_player_abilities 🔒 s_player_action 🔒 s_player_command 🔒 s_player_input 🔒 s_player_load 🔒 s_rename_item 🔒 Serverbound packet for renaming the item inside of an anvil’s first slot s_set_carried_item 🔒 s_set_creative_mode_slot 🔒 s_set_held_item 🔒 Serverbound packet for changing the held item slot. s_sign_update 🔒 s_spectator_action 🔒 s_swing 🔒 Serverbound swing packet - sent when the player swings their arm. s_use_item 🔒 s_use_item_on 🔒 world_border 🔒 ArgumentSignature Signature for a single command argument AttributeModifierData Represents a single attribute modifier within an attribute snapshot. AttributeSnapshot A snapshot of a single attribute’s state, including its base value and active modifiers. BlockChange BlockEntityInfo CAddEntity Spawns an entity on the client. CAnimate Sent to play an animation on an entity. CBlockChangedAck CBlockDestruction CBlockEntityData Packet sent to update a block entity’s data on the client. CBlockEvent Sent to trigger block-specific events on the client. CBlockUpdate CBundleDelimiter Marks the start or end of a packet bundle. CChangeDifficulty Clientbound packet that informs the client about the current world difficulty. CChunkBatchFinished CChunkBatchStart CCommandSuggestions Sent by the server in response to a command suggestion request. CCommands CContainerClose CContainerSetContent CContainerSetData CContainerSetSlot CCooldown Starts or clears a client-side item cooldown group. CDamageEvent Sent when an entity takes damage. Used for hit animations and damage direction indicator. CDisguisedChat Clientbound packet for unsigned/disguised chat messages
This is sent when the server doesn’t have a signed message CEntityEvent Performs an entity event. CEntityPositionSync Synchronizes an entity’s position, velocity, and rotation. CForgetLevelChunk CGameEvent CHurtAnimation CInitializeBorder CLevelChunkWithLight CLevelEvent Sent to trigger level events (sounds, particles, animations) on the client. CLevelParticles Sent to create particles on the client. CLightUpdate CLogin CMoveEntityPos Updates an entity’s position with a delta from its current position. CMoveEntityPosRot Updates an entity’s position and rotation. CMoveEntityRot Updates an entity’s rotation only. CMoveVehicle Clientbound controlled-vehicle position correction packet. COpenScreen COpenSignEditor Clientbound packet sent to open the sign editor GUI. CPlayerAbilities Sent by the server to update the player’s abilities.
This tells the client whether the player can fly, is invulnerable, etc. CPlayerChat CPlayerCombatKill CPlayerInfoUpdate CPlayerLookAt Rotates the receiving player toward a position or tracked entity. CPlayerPosition Sent to teleport a player to a new position. CRemoveEntities Removes one or more entities from the client. CRemoveMobEffect Sent when the client should remove an entity mob effect. CRemovePlayerInfo Removes players from the client’s player list. CRespawn Respawn a player in any dimension. CRotateHead Updates an entity’s head yaw rotation. CSectionBlocksUpdate CSetBorderCenter CSetBorderLerpSize CSetBorderSize CSetBorderWarningDelay CSetBorderWarningDistance CSetCamera CSetChunkCacheRadius CSetChunkCenter CSetCursorItem CSetDefaultSpawnPosition Updates the client’s default world spawn marker. CSetEntityData Sent to synchronize entity metadata (health, pose, flags, etc.) with the client. CSetEntityLink Updates the leash/link holder for an entity. CSetEntityMotion Sent to update an entity’s velocity on the client. CSetEquipment Updates one or more equipment slots for an entity. CSetExperience CSetHealth CSetHeldSlot CSetPassengers Updates the direct passengers riding a vehicle entity. CSetPlayerInventory Updates one logical slot in the receiving player’s inventory. CSetTime CSound Sent to play a sound effect at a specific position. CSystemChat CTabList Packet to set the tab list header and footer.
This allows servers to display custom text above and below the player list. CTakeItemEntity Sent when an entity picks up an item (item, experience orb, or arrow). CTeleportEntity Teleports an entity with optional relative position, rotation, and velocity flags. CTickingState Packet sent to clients to inform them of the current tick rate and frozen state.
This allows clients to adjust their local tick rate manager for smoother gameplay. CTickingStep Packet sent to clients to inform them of the number of frozen ticks to run.
This is used when stepping forward while the server is frozen. CUpdateAttributes Clientbound packet sent to update entity attributes and their modifiers. CUpdateMobEffect Sent when the client should add or update an entity mob effect. ChatTypeBound Represents Minecraft’s ChatType.Bound structure
Contains a registry holder + sender name + optional target name ChunkPacketData CommandNodeInfo CommonPlayerSpawnInfo EquipmentSlotItem One equipment slot update. HashedPatchMap A hashed representation of component patches for verification.
Maps data component type IDs to their hash values. Heightmaps LastSeenMessagesUpdate Last seen messages update from client LightUpdatePacketData MobEffectPacketFlags PackedEntityDelta A fixed-point entity movement delta encoded as a protocol i16. PlayerInfoEntry PreviousMessage ProtocolRemoteChatSessionData Network-serializable chat session data. RelativeMovement Relative position/rotation flags. SAcceptTeleportation Sent by the client to acknowledge a server-initiated teleport. SAttack Serverbound packet sent when a player left-click attacks an entity. SChangeDifficulty Serverbound packet sent when the client requests a difficulty change. SChangeGameMode SChat SChatAck Client -> Server: Acknowledges messages received from the server. SChatCommand SChatCommandSigned Client -> Server: Executes a signed command. SChatSessionUpdate Client -> Server: Updates the player’s chat session with their public key. SChunkBatchReceived SClientCommand Sent by the client when it wants to perform an action such as respawning after death. SClientTickEnd SCommandSuggestion Sent by the client when requesting command suggestions (tab completion). SContainerButtonClick SContainerClick Serverbound packet sent when a player clicks in a container. SContainerClose SContainerSlotStateChanged SInteract Serverbound packet sent when a player right-clicks an entity. SMovePlayer Constructed packet by the server to more easily be able to handle movement. SMovePlayerPos SMovePlayerPosRot SMovePlayerRot SMovePlayerStatusOnly Status-only movement packet (no position or rotation, just on_ground flag). SMoveVehicle Serverbound controlled-vehicle movement packet. SPickItemFromBlock Serverbound packet sent when a player uses the pick block key (middle click) on a block. SPlayerAbilities Sent by the client when the player starts or stops flying.
The server uses this to track the player’s flying state. SPlayerAction Serverbound packet sent when a player performs an action like mining a block. SPlayerCommand Serverbound packet sent when a player performs a command action. SPlayerInput Player input state sent each tick when input changes. SPlayerLoad SRenameItem Sent by the client when the player changes an anvil’s item name. SSetCarriedItem SSetCreativeModeSlot Creative mode slot packet uses the delimited (untrusted) item format
where each component value is prefixed with a VarInt byte length. SSetHeldItem Sent by the client when the player changes their selected hotbar slot. SSignUpdate Serverbound packet sent when a player finishes editing a sign. SSpectatorAction SSwing Sent when the player swings their arm (attacks or interacts). SUseItem Serverbound packet sent when a player uses an item (right-click in air). SUseItemOn Serverbound packet sent when a player uses an item on a block (right-click on block). SuggestionEntry A single command suggestion entry. AnimateAction Animation action types. ArgumentStringTypeBehavior ArgumentType AttributeModifierOperation The operation type for an attribute modifier. ClickType The type of click action performed on a container slot. ClientCommandAction The action the client wants to perform. CommandNode FilterType GameEventType HashedStack A hashed representation of an ItemStack sent from client to server.
Used for verification without trusting client data. HeightmapType LookAtAnchor Entity position used as one endpoint of a player look-at operation. PlayerAction Action types for the player action packet. PlayerCommandAction Action types for the player command packet. PlayerInfoAction Actions for the player info update packet.
These match the vanilla Java ClientboundPlayerInfoUpdatePacket.Action enum. SoundSource Sound source categories (matches vanilla SoundSource enum order). SuggestionType PLAYER_INFO_INIT_ACTIONS Bitmask combining all actions needed when a player first joins.
This matches vanilla’s createPlayerInitializing() method. calc_delta Calculates the delta for entity movement. to_angle_byte Converts degrees to a protocol angle byte (0-255 representing 0-360 degrees). write_lp_vec3 Writes a velocity vector in LpVec3 format.