Packets and their Uses

Incoming Packets (Packets sent from the server to the client):

• S00PacketKeepAlive: Used by the server to check if the client is still responsive by sending periodic keep-alive packets.
• S02PacketChat: Sends chat messages from the server to the client.
• S03PacketTimeUpdate: Updates the time of day on the client to synchronize with the server.
• S04PacketEntityEquipment: Updates equipment worn by an entity, such as armor or items in hand.
• S05PacketSpawnPosition: Defines the position where players will spawn in the world.
• S06PacketUpdateHealth: Updates the player’s health, food level, and food saturation.
• S07PacketRespawn: Forces the player to respawn after dying or being teleported to another dimension.
• S08PacketPlayerPosLook: Updates the player’s position and look direction.
• S09PacketHeldItemChange: Updates the slot in the hotbar that the player has selected.
• S0APacketUseBed: Informs the client that a player is using a bed.
• S0BPacketAnimation: Animates entities, like arm swings.
• S0CPacketSpawnPlayer: Spawns another player entity into the game world.
• S0DPacketCollectItem: Sent when an entity, usually a player, picks up an item.
• S0EPacketSpawnObject: Spawns objects like arrows, boats, or minecarts in the world.
• S0FPacketSpawnMob: Spawns a mob entity in the world.
• S10PacketSpawnPainting: Spawns a painting entity in the game world.
• S11PacketSpawnExperienceOrb: Spawns experience orbs in the world.
• S12PacketEntityVelocity: Updates an entity’s velocity.
• S13PacketDestroyEntities: Informs the client to remove an entity from the world.
• S14PacketEntity: Updates the position or rotation of an entity.
• S15PacketEntityRelMove: Relative movement of an entity compared to its previous position.
• S16PacketEntityLook: Changes only the look (head or body rotation) of an entity.
• S17PacketEntityLookMove: Updates both the position and look of an entity.
• S18PacketEntityTeleport: Teleports an entity to a specific location.
• S19PacketEntityHeadLook: Rotates only the head of the entity.
• S1APacketEntityStatus: Updates an entity’s status, such as being on fire or crouching.
• S1BPacketEntityAttach: Attaches entities, like putting a player in a minecart.
• S1CPacketEntityMetadata: Updates metadata (custom properties) for entities.
• S1DPacketEntityEffect: Applies a status effect to an entity, like poison or speed.
• S1EPacketRemoveEntityEffect: Removes a status effect from an entity.
• S20PacketEntityProperties: Updates the properties of an entity, such as health, movement speed, or attack damage.
• S21PacketChunkData: Sends a chunk of terrain data to the client.
• S22PacketMultiBlockChange: Changes multiple blocks within a chunk at once.
• S23PacketBlockChange: Updates a single block’s state.
• S24PacketBlockAction: Performs an action on a block, like opening a chest or a note block sound.
• S25PacketBlockBreakAnim: Displays block-breaking animations.
• S26PacketMapChunkBulk: Sends multiple chunks to the client at once.
• S27PacketExplosion: Simulates an explosion by removing or damaging blocks.
• S28PacketEffect: Sends an effect, such as a sound, like explosions or portal sounds.
• S29PacketSoundEffect: Sends sound events to the client.
• S2APacketParticles: Sends particle effects, like smoke or flames.
• S2BPacketChangeGameState: Changes the game state, such as starting rain or clearing it.
• S2CPacketSpawnGlobalEntity: Spawns a global entity, like a lightning bolt.
• S2DPacketOpenWindow: Opens a window, such as a chest or crafting table interface.
• S2EPacketCloseWindow: Closes the open window or GUI on the client side.
• S2FPacketSetSlot: Updates the item in a specific inventory slot.
• S30PacketWindowItems: Sends all items in an open window’s inventory.
• S31PacketWindowProperty: Updates a property of a window, like progress bars in brewing or furnace GUIs.
• S32PacketConfirmTransaction: Confirms a transaction between the client and server.
• S33PacketUpdateSign: Updates the text on a sign.
• S34PacketMaps: Sends map data to the client.
• S35PacketUpdateTileEntity: Updates data for a tile entity, such as a chest or furnace.
• S36PacketSignEditorOpen: Opens the sign editor on the client to allow typing on a sign.
• S37PacketStatistics: Sends statistics data, such as blocks broken or time played.
• S38PacketPlayerListItem: Updates the player list (Tab menu) with player names, ping, and game mode.
• S39PacketPlayerAbilities: Updates the player’s abilities, such as whether they can fly or are in creative mode.
• S3APacketTabComplete: Provides tab-completion options for commands.
• S3BPacketScoreboardObjective: Manages scoreboard objectives.
• S3CPacketUpdateScore: Updates the score for an objective.
• S3DPacketDisplayScoreboard: Changes the scoreboard display.
• S3EPacketTeams: Manages team data for the scoreboard.
• S3FPacketCustomPayload: Sends custom plugin messages.
• S40PacketDisconnect: Disconnects the player with a message.
• S41PacketServerDifficulty: Updates the difficulty level of the server.
• S42PacketCombatEvent: Sends combat events, such as entering or leaving combat.
• S43PacketCamera: Changes the player’s camera perspective, like when controlling an entity.
• S44PacketWorldBorder: Updates the world border settings.
• S45PacketTitle: Displays a title on the screen.
• S46PacketSetCompressionLevel: Sets the compression threshold for packets.
• S47PacketPlayerListHeaderFooter: Updates the header and footer of the player list.
• S48PacketResourcePackSend: Sends a resource pack URL for the client to download.
• S49PacketUpdateEntityNBT: Sends updated NBT data for an entity.

Outgoing Packets (Packets sent from the client to the server):

• C00PacketKeepAlive: Sent by the client to keep the connection alive.
• C01PacketChatMessage: Sends a chat message from the client to the server.
• C02PacketUseEntity: Interacts with an entity, such as attacking or interacting with it.
• C03PacketPlayer: General player movement packet.
• C04PacketPlayerPosition: Sends the player’s position to the server.
• C05PacketPlayerLook: Sends the player’s view direction (yaw and pitch).
• C06PacketPlayerPosLook: Sends both the position and look direction.
• C07PacketPlayerDigging: Sent when the player starts or finishes digging a block.
• C08PacketPlayerBlockPlacement: Sent when the player places a block in the world.
• C09PacketHeldItemChange: Notifies the server that the player has changed the selected hotbar slot.
• C0APacketAnimation: Sends animations, like arm swings.
• C0BPacketEntityAction: Sends entity actions, like crouching or sprinting.
• C0CPacketClickWindow: Used for inventory management; sends when an item is clicked in an inventory window.
• C0DPacketCloseWindow: Closes the inventory window.
• C0EPacketClickWindow: Confirms an item transaction in the inventory.
• C11PacketEnchantItem: Used when enchanting an item.
• C12PacketUpdateSign: Updates the text of a sign.
• C13PacketPlayerAbilities: Sends player ability changes, such as allowing flight or invulnerability.
• C14PacketTabComplete: Requests tab-completion options from the server.
• C15PacketClientSettings: Sends the player’s client settings, like language, chat visibility, and render distance.
• C16PacketClientStatus: Updates the client status, like requesting statistics or respawning.
• C17PacketCustomPayload: Sends custom plugin messages.
• C18PacketSpectate: Sent when the player starts spectating another entity.
• C19PacketResourcePackStatus: Sent when the player accepts or declines a resource pack.
• CAnimateHandPacket: Simulates the player’s hand animation, such as swinging or using an item.

These packet types represent a variety of actions and data exchanged between the client and server in Minecraft, from movement and combat to world interaction and game state

EntityActionsToCancel:

These are actions associated with an entity’s behavior, particularly the player, and they likely correspond to player actions that can be canceled.

• StartSprint: Indicates that the player begins sprinting.
• StopSprint: Indicates that the player stops sprinting.
• StartSneaking: Signals that the player begins sneaking (crouching).
• StopSneaking: Signals that the player stops sneaking.
• StopSleeping: Indicates that the player has stopped sleeping, likely when exiting a bed.
• RidingJump: Used when the player performs a jump while riding an entity (e.g., a horse or pig).
• OpenInventory: Triggers when the player opens their inventory.

DiggingPacket:

These are related to the block digging or destruction process, typically handled when the player interacts with blocks.

• StartDestroyBlock: Indicates the player has started breaking a block.
• AbortDestroyBlock: Cancels the block destruction process, such as when the player stops mining mid-way.
• StopDestroyBlock: Sent when the block is fully destroyed by the player.
• DropAllItems: Causes the player to drop all items from their inventory.
• DropItem: Drops a single item from the player’s inventory.
• ReleaseUseItem: Indicates that the player has stopped using an item (e.g., releasing a bowstring after drawing the bow).

These packets are key to handling player actions related to movement, block breaking, and interactions with their inventory or items.