chore: add packet rate limiter

crates/pumpkin-config/src/lib.rs

@@ -36,6 +36,7 @@ pub use networking::bedrock::BedrockConfig;
 pub use networking::compression::CompressionConfig;
 pub use networking::java::JavaConfig;
 pub use networking::lan_broadcast::LANBroadcastConfig;
+pub use networking::packet_limiter::PacketLimiterConfig;
 pub use networking::rcon::RCONConfig;
 pub use plugins::{PluginOverride, PluginsConfig};
 pub use pvp::PVPConfig;
@@ -93,6 +94,10 @@ impl LoadConfiguration for PumpkinConfig {
         };
 
         // Validate Java
+        assert!(
+            self.advanced.networking.java.keep_alive_time > 0,
+            "Java Keep alive time must be greater than 0"
+        );
         assert!(
             self.advanced.networking.java.view_distance >= min_vd,
             "Java View distance must be at least 2"

crates/pumpkin-config/src/networking/bedrock.rs

@@ -1,4 +1,4 @@
-use crate::CompressionConfig;
+use crate::{CompressionConfig, PacketLimiterConfig};
 use serde::{Deserialize, Serialize};
 use std::net::{IpAddr, SocketAddr};
 use std::num::NonZero;
@@ -84,6 +84,8 @@ pub struct BedrockConfig {
     pub nethernet: NetherNetConfig,
     /// Whether Bedrock client chunk blob caching is enabled.
     pub chunk_caching: bool,
+    /// Packet rate limiting settings.
+    pub packet_limiter: PacketLimiterConfig,
 }
 
 impl Default for BedrockConfig {
@@ -101,6 +103,7 @@ impl Default for BedrockConfig {
             authentication: BedrockAuthenticationConfig::default(),
             nethernet: NetherNetConfig::default(),
             chunk_caching: true,
+            packet_limiter: PacketLimiterConfig::default(),
         }
     }
 }

crates/pumpkin-config/src/networking/java.rs

@@ -1,4 +1,4 @@
-use crate::{AuthenticationConfig, CompressionConfig};
+use crate::{AuthenticationConfig, CompressionConfig, PacketLimiterConfig};
 use serde::{Deserialize, Serialize};
 use std::net::SocketAddr;
 use std::num::NonZero;
@@ -21,12 +21,21 @@ pub struct JavaConfig {
     pub view_distance: NonZero<u8>,
     /// The maximum simulated view distance.
     pub simulation_distance: NonZero<u8>,
+    /// Time interval in seconds between keep-alive packets sent to Java clients.
+    #[serde(
+        alias = "keep-alive-time",
+        alias = "keep_alive_interval",
+        alias = "keep-alive-interval"
+    )]
+    pub keep_alive_time: u64,
     /// Java Edition packet compression settings.
     pub compression: CompressionConfig,
     /// Message of the Day; the server's description displayed on the status screen.
     pub motd: String,
     /// Authentication settings for client connections.
     pub authentication: AuthenticationConfig,
+    /// Packet rate limiting settings.
+    pub packet_limiter: PacketLimiterConfig,
 }
 
 impl Default for JavaConfig {
@@ -44,9 +53,49 @@ impl Default for JavaConfig {
             max_players: 1000,
             view_distance,
             simulation_distance,
+            keep_alive_time: 15,
             compression: CompressionConfig::default(),
             motd: "A blazingly fast Pumpkin server!".to_string(),
             authentication: AuthenticationConfig::default(),
+            packet_limiter: PacketLimiterConfig::default(),
         }
     }
 }
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+
+    #[test]
+    fn default_keep_alive_time() {
+        let config = JavaConfig::default();
+        assert_eq!(config.keep_alive_time, 15);
+    }
+
+    #[test]
+    fn keep_alive_time_deserialization() {
+        let toml_snake = r"
+            keep_alive_time = 20
+        ";
+        let config: JavaConfig = toml::from_str(toml_snake).unwrap();
+        assert_eq!(config.keep_alive_time, 20);
+
+        let toml_kebab = r"
+            keep-alive-time = 25
+        ";
+        let config: JavaConfig = toml::from_str(toml_kebab).unwrap();
+        assert_eq!(config.keep_alive_time, 25);
+
+        let toml_interval = r"
+            keep_alive_interval = 30
+        ";
+        let config: JavaConfig = toml::from_str(toml_interval).unwrap();
+        assert_eq!(config.keep_alive_time, 30);
+
+        let toml_interval_kebab = r"
+            keep-alive-interval = 35
+        ";
+        let config: JavaConfig = toml::from_str(toml_interval_kebab).unwrap();
+        assert_eq!(config.keep_alive_time, 35);
+    }
+}

crates/pumpkin-config/src/networking/mod.rs

@@ -24,6 +24,10 @@ pub mod query;
 /// RCON remote console configuration.
 pub mod rcon;
 
+/// Packet limiter configuration.
+pub mod packet_limiter;
+pub use packet_limiter::PacketLimiterConfig;
+
 /// Configuration for server networking features.
 ///
 /// Covers authentication, query, RCON, proxying, packet compression,

crates/pumpkin-config/src/networking/packet_limiter.rs

@@ -0,0 +1,65 @@
+use serde::{Deserialize, Serialize};
+
+/// Configuration for client packet rate limiting.
+#[derive(Deserialize, Serialize, Clone, Debug)]
+#[serde(default)]
+pub struct PacketLimiterConfig {
+    /// Whether the packet rate limiter is enabled.
+    pub enabled: bool,
+    /// Maximum number of incoming packets allowed per second per client.
+    /// Values <= 0.0 disable the rate limit.
+    #[serde(alias = "max-packet-rate")]
+    pub max_packet_rate: f64,
+    /// Burst allowance capacity for packet rate limiting.
+    #[serde(alias = "burst-capacity")]
+    pub burst_capacity: f64,
+    /// Kick message when a client exceeds the packet rate limit.
+    #[serde(alias = "kick-message")]
+    pub kick_message: String,
+}
+
+impl Default for PacketLimiterConfig {
+    fn default() -> Self {
+        Self {
+            enabled: true,
+            max_packet_rate: 500.0,
+            burst_capacity: 500.0,
+            kick_message: "Kicked for spamming packets".to_string(),
+        }
+    }
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+
+    #[test]
+    fn toml_parsing_with_kebab_case() {
+        let toml_str = r#"
+            enabled = true
+            max-packet-rate = 300.0
+            burst-capacity = 100.0
+            kick-message = "Stop spamming"
+        "#;
+        let config: PacketLimiterConfig = toml::from_str(toml_str).unwrap();
+        assert!(config.enabled);
+        assert!((config.max_packet_rate - 300.0).abs() < f64::EPSILON);
+        assert!((config.burst_capacity - 100.0).abs() < f64::EPSILON);
+        assert_eq!(config.kick_message, "Stop spamming");
+    }
+
+    #[test]
+    fn toml_parsing_with_snake_case() {
+        let toml_str = r#"
+            enabled = true
+            max_packet_rate = 500.0
+            burst_capacity = 500.0
+            kick_message = "Kicked for spamming packets"
+        "#;
+        let config: PacketLimiterConfig = toml::from_str(toml_str).unwrap();
+        assert!(config.enabled);
+        assert!((config.max_packet_rate - 500.0).abs() < f64::EPSILON);
+        assert!((config.burst_capacity - 500.0).abs() < f64::EPSILON);
+        assert_eq!(config.kick_message, "Kicked for spamming packets");
+    }
+}

crates/pumpkin-data/src/generated/packet.rs

@@ -190,8 +190,8 @@ pub mod serverbound {
         v1_21_7: 0i32,
         v1_21_9: 0i32,
         v1_21_11: 0i32,
-        v26_1: -1i32,
-        v26_2: -1i32,
+        v26_1: 0i32,
+        v26_2: 0i32,
     };
     pub const LOGIN_COOKIE_RESPONSE: super::PacketId = super::PacketId {
         v1_20_5: 4i32,

crates/pumpkin-protocol/src/bedrock/packet_encoder.rs

@@ -86,6 +86,44 @@ impl BedrockBatchEncoder {
 
         Ok(())
     }
+
+    pub fn write_packet<P: crate::BClientPacket + ?Sized>(
+        &self,
+        packet: &P,
+        writer: impl Write,
+    ) -> Result<(), Error> {
+        let mut packet_payload = Vec::new();
+        packet.write_packet(&mut packet_payload)?;
+        self.write_game_packet(
+            P::PACKET_ID as u16,
+            SubClient::Main,
+            SubClient::Main,
+            &packet_payload,
+            writer,
+        )
+    }
+
+    pub fn serialize_packet<P: crate::BClientPacket + ?Sized>(
+        &self,
+        packet: &P,
+    ) -> Result<bytes::Bytes, Error> {
+        let mut buf = Vec::new();
+        self.write_packet(packet, &mut buf)?;
+        Ok(buf.into())
+    }
+}
+
+pub fn write_packet<P: crate::BClientPacket + ?Sized>(
+    packet: &P,
+    writer: impl Write,
+) -> Result<(), Error> {
+    BedrockBatchEncoder::new().write_packet(packet, writer)
+}
+
+pub fn serialize_packet<P: crate::BClientPacket + ?Sized>(
+    packet: &P,
+) -> Result<bytes::Bytes, Error> {
+    BedrockBatchEncoder::new().serialize_packet(packet)
 }
 
 #[cfg(test)]

crates/pumpkin-protocol/src/java/client/config/ping.rs

@@ -27,3 +27,15 @@ impl ClientPacket for CConfigPing {
         Ok(())
     }
 }
+
+impl<'a> crate::ServerPacket<'a> for CConfigPing {
+    fn read(
+        read: &mut &'a [u8],
+        _version: &JavaMinecraftVersion,
+    ) -> Result<Self, crate::ser::ReadingError> {
+        use crate::ser::NetworkReadExt;
+        Ok(Self {
+            id: read.get_i32_be()?,
+        })
+    }
+}

crates/pumpkin-protocol/src/java/client/play/player_position.rs

@@ -91,16 +91,50 @@ impl ClientPacket for CPlayerPosition {
 impl<'a> ServerPacket<'a> for CPlayerPosition {
     fn read(
         read: &mut &'a [u8],
-        _version: &JavaMinecraftVersion,
+        version: &JavaMinecraftVersion,
     ) -> Result<Self, crate::ser::ReadingError> {
-        Ok(Self {
-            teleport_id: read.get_var_int()?,
-            // TODO
-            position: Vector3::new(0.0, 0.0, 0.0),
-            delta: Vector3::new(0.0, 0.0, 0.0),
-            yaw: 0.0,
-            pitch: 0.0,
-            relatives: Vec::new(),
-        })
+        if version >= &JavaMinecraftVersion::V_1_21_2 {
+            let teleport_id = read.get_var_int()?;
+            let x = read.get_f64_be()?;
+            let y = read.get_f64_be()?;
+            let z = read.get_f64_be()?;
+            let dx = read.get_f64_be()?;
+            let dy = read.get_f64_be()?;
+            let dz = read.get_f64_be()?;
+            let yaw = read.get_f32_be()?;
+            let pitch = read.get_f32_be()?;
+            let relatives_bits = read.get_i32_be()?;
+            Ok(Self {
+                teleport_id,
+                position: Vector3::new(x, y, z),
+                delta: Vector3::new(dx, dy, dz),
+                yaw,
+                pitch,
+                relatives: PositionFlag::from_bitfield(relatives_bits),
+            })
+        } else {
+            let x = read.get_f64_be()?;
+            let y = read.get_f64_be()?;
+            let z = read.get_f64_be()?;
+            let yaw = read.get_f32_be()?;
+            let pitch = read.get_f32_be()?;
+            let relatives_bits = i32::from(read.get_u8()?);
+            let teleport_id = if version >= &JavaMinecraftVersion::V_1_9 {
+                read.get_var_int()?
+            } else {
+                VarInt(0)
+            };
+            if version >= &JavaMinecraftVersion::V_1_20_2 {
+                let _ = read.get_bool()?;
+            }
+            Ok(Self {
+                teleport_id,
+                position: Vector3::new(x, y, z),
+                delta: Vector3::new(0.0, 0.0, 0.0),
+                yaw,
+                pitch,
+                relatives: PositionFlag::from_bitfield(relatives_bits),
+            })
+        }
     }
 }

crates/pumpkin-protocol/src/java/packet_encoder.rs

@@ -1,12 +1,14 @@
 use aes::cipher::KeyIvInit;
 use bytes::Bytes;
 use flate2::{Compress, Compression, FlushCompress, Status};
+use pumpkin_util::version::JavaMinecraftVersion;
 use thiserror::Error;
 use tokio::io::{AsyncWrite, AsyncWriteExt};
 
 use crate::{
-    Aes128Cfb8Enc, CompressionLevel, CompressionThreshold, MAX_PACKET_DATA_SIZE, MAX_PACKET_SIZE,
-    PacketEncodeError, StreamEncryptor, VarInt,
+    Aes128Cfb8Enc, ClientPacket, CompressionLevel, CompressionThreshold, MAX_PACKET_DATA_SIZE,
+    MAX_PACKET_SIZE, PacketEncodeError, StreamEncryptor, VarInt, WritingError,
+    ser::NetworkWriteExt,
 };
 
 // raw -> compress -> encrypt
@@ -318,6 +320,28 @@ impl<W: AsyncWrite + Unpin> TCPNetworkEncoder<W> {
     }
 }
 
+pub fn write_packet<P: ClientPacket + ?Sized>(
+    packet: &P,
+    version: &JavaMinecraftVersion,
+    mut write: impl std::io::Write,
+) -> Result<(), WritingError> {
+    let version_number = P::to_id(*version);
+    if version_number == -1 {
+        return Ok(());
+    }
+    write.write_var_int(&VarInt(version_number))?;
+    packet.write_packet_data(write, version)
+}
+
+pub fn serialize_packet<P: ClientPacket + ?Sized>(
+    packet: &P,
+    version: &JavaMinecraftVersion,
+) -> Result<Bytes, WritingError> {
+    let mut packet_buf = Vec::new();
+    write_packet(packet, version, &mut packet_buf)?;
+    Ok(packet_buf.into())
+}
+
 #[derive(Error, Debug)]
 #[error("Invalid compression Level")]
 pub struct CompressionLevelError;

crates/pumpkin-protocol/src/lib.rs

@@ -255,6 +255,18 @@ pub trait ClientPacket: MultiVersionJavaPacket {
         write: impl Write,
         version: &JavaMinecraftVersion,
     ) -> Result<(), WritingError>;
+
+    fn write_packet(
+        &self,
+        version: &JavaMinecraftVersion,
+        write: impl Write,
+    ) -> Result<(), WritingError> {
+        crate::java::packet_encoder::write_packet(self, version, write)
+    }
+
+    fn serialize_packet(&self, version: &JavaMinecraftVersion) -> Result<Bytes, WritingError> {
+        crate::java::packet_encoder::serialize_packet(self, version)
+    }
 }
 
 pub trait ServerPacket<'a>: MultiVersionJavaPacket + Sized {
@@ -263,6 +275,10 @@ pub trait ServerPacket<'a>: MultiVersionJavaPacket + Sized {
 
 pub trait BClientPacket: Packet {
     fn write_packet(&self, writer: impl Write) -> Result<(), Error>;
+
+    fn serialize_packet(&self) -> Result<Bytes, Error> {
+        crate::bedrock::packet_encoder::serialize_packet(self)
+    }
 }
 
 pub trait BServerPacket: Packet + Sized {
@@ -447,6 +463,24 @@ impl PositionFlag {
     pub fn get_bitfield(flags: &[Self]) -> i32 {
         flags.iter().fold(0, |acc, flag| acc | flag.get_mask())
     }
+
+    #[must_use]
+    pub fn from_bitfield(bits: i32) -> Vec<Self> {
+        let all = [
+            Self::X,
+            Self::Y,
+            Self::Z,
+            Self::YRot,
+            Self::XRot,
+            Self::DeltaX,
+            Self::DeltaY,
+            Self::DeltaZ,
+            Self::RotateDelta,
+        ];
+        all.into_iter()
+            .filter(|flag| (bits & flag.get_mask()) != 0)
+            .collect()
+    }
 }
 
 pub enum Label {

crates/pumpkin-world/src/chunk_system/schedule.rs

@@ -1282,6 +1282,12 @@ impl GenerationSchedule {
                         });
 
                     if node.stage > effective_target {
+                        if let Some(holder) = self.chunk_map.get_mut(&node.pos) {
+                            let task_slot = &mut holder.tasks[node.stage as usize];
+                            if *task_slot == task.1 {
+                                *task_slot = NodeKey::null();
+                            }
+                        }
                         self.waiting_for_chunks.remove(&task.1);
                         self.drop_node(task.1);
                         continue;

crates/pumpkin-world/src/chunk_system/tests.rs

@@ -416,3 +416,47 @@ fn dag_prune_edge_chain_removes_dead_target_edges() {
     assert!(head.is_null());
     assert_eq!(graph.edges.len(), 0);
 }
+
+#[test]
+fn cancelled_out_of_range_task_clears_holder_task_slot() {
+    let mut graph = DAG::default();
+    let mut chunk_map = HashMap::new();
+    let pos = ChunkPos::new(0, 0);
+
+    let stage = StagedChunkEnum::Biomes;
+    let node_key = graph.nodes.insert(Node::new(pos, stage));
+
+    let mut holder = ChunkHolder {
+        current_stage: StagedChunkEnum::Empty,
+        target_stage: StagedChunkEnum::None, // Chunk was downgraded / moved out of range
+        dependency_stage: StagedChunkEnum::None,
+        ..Default::default()
+    };
+    holder.tasks[stage as usize] = node_key;
+    chunk_map.insert(pos, holder);
+
+    // Simulate task processing loop cancellation when node.stage > effective_target
+    let node = graph.nodes.get(node_key).unwrap().clone();
+    let effective_target = chunk_map.get(&node.pos).map_or(StagedChunkEnum::None, |h| {
+        h.target_stage.max(h.dependency_stage)
+    });
+
+    assert!(node.stage > effective_target);
+    if let Some(holder) = chunk_map.get_mut(&node.pos) {
+        let task_slot = &mut holder.tasks[node.stage as usize];
+        if *task_slot == node_key {
+            *task_slot = NodeKey::null();
+        }
+    }
+    graph.fast_drop_node(node_key);
+
+    let holder = chunk_map.get(&pos).unwrap();
+    assert!(
+        holder.tasks[stage as usize].is_null(),
+        "Task slot must be null after cancellation"
+    );
+    assert!(
+        holder.tasks.iter().all(Key::is_null),
+        "All task slots must be null when idle"
+    );
+}

crates/pumpkin/src/command/client_suggestions.rs

@@ -208,7 +208,7 @@ pub async fn send_c_commands_packet(
     }
 
     let packet = CCommands::new(proto_nodes.into(), VarInt(root_node_index as i32));
-    player.client.enqueue_packet(&packet).await;
+    player.send_client_packet(&packet).await;
 }
 
 fn resolve_node_id(node_id: NodeId, node_id_offset: usize, root_node_index: usize) -> usize {
@@ -435,7 +435,7 @@ pub async fn send_bedrock_commands_packet(
     };
 
     if let crate::net::ClientPlatform::Bedrock(bedrock_client) = player.client.as_ref() {
-        bedrock_client.send_game_packet(&packet).await;
+        bedrock_client.send_packet(&packet).await;
     }
 }
 

crates/pumpkin/src/command/commands/dialog.rs

@@ -28,7 +28,7 @@ impl CommandExecutor for DialogClearExecutor {
             let count = targets.len();
             let packet = CPlayClearDialog::new();
             for player in &targets {
-                player.client.send_packet_now(&packet).await;
+                player.send_client_packet(&packet).await;
             }
 
             let msg = if count == 1 {
@@ -65,7 +65,7 @@ impl CommandExecutor for DialogShowExecutor {
                     let packet = CPlayShowDialog::new(IdOr::Value(dialog_nbt));
 
                     for player in &targets {
-                        player.client.send_packet_now(&packet).await;
+                        player.send_client_packet(&packet).await;
                     }
 
                     let msg = if count == 1 {

crates/pumpkin/src/command/commands/recipe.rs

@@ -108,13 +108,10 @@ impl CommandExecutor for RecipeGiveExecutor {
             }
 
             let recipe_count = matching_recipes.len();
+            let packet = CRecipeBookAdd::new(false, &matching_recipes);
 
             for player in &targets {
-                if let crate::net::ClientPlatform::Java(java_client) = player.client.as_ref() {
-                    java_client
-                        .send_packet_now(&CRecipeBookAdd::new(false, &matching_recipes))
-                        .await;
-                }
+                player.send_client_packet(&packet).await;
             }
 
             let recipe_count_str = recipe_count.to_string();
@@ -193,12 +190,9 @@ impl CommandExecutor for RecipeTakeExecutor {
                 all_recipes.len() - remaining_recipes.len()
             };
 
+            let packet = CRecipeBookAdd::new(true, &remaining_recipes);
             for player in &targets {
-                if let crate::net::ClientPlatform::Java(java_client) = player.client.as_ref() {
-                    java_client
-                        .send_packet_now(&CRecipeBookAdd::new(true, &remaining_recipes))
-                        .await;
-                }
+                player.send_client_packet(&packet).await;
             }
 
             let taken_count_str = taken_count.to_string();

crates/pumpkin/src/command/commands/spectate.rs

@@ -45,8 +45,7 @@ impl CommandExecutor for StopSpectateExecutor {
 
             player.camera_target_id.store(None);
             player
-                .client
-                .send_packet_now(&CSetCamera::new(player.entity_id().into()))
+                .send_client_packet(&CSetCamera::new(player.entity_id().into()))
                 .await;
 
             sender
@@ -110,8 +109,7 @@ impl CommandExecutor for SpectateTargetSelfExecutor {
             let target_id = target_entity.entity_id;
             player.camera_target_id.store(Some(target_id));
             player
-                .client
-                .send_packet_now(&CSetCamera::new(target_id.into()))
+                .send_client_packet(&CSetCamera::new(target_id.into()))
                 .await;
 
             let pos = target_entity.pos.load();
@@ -189,8 +187,7 @@ impl CommandExecutor for SpectateTargetOtherExecutor {
                 let target_id = target_entity.entity_id;
                 player.camera_target_id.store(Some(target_id));
                 player
-                    .client
-                    .send_packet_now(&CSetCamera::new(target_id.into()))
+                    .send_client_packet(&CSetCamera::new(target_id.into()))
                     .await;
 
                 let pos = target_entity.pos.load();

crates/pumpkin/src/command/commands/title.rs

@@ -44,7 +44,7 @@ impl CommandExecutor for ClearOrResetExecutor {
             let reset = self.0;
 
             for target in targets {
-                target.client.enqueue_packet(&CClearTitle::new(reset)).await;
+                target.send_client_packet(&CClearTitle::new(reset)).await;
             }
             sender
                 .send_message(if targets.len() == 1 {

crates/pumpkin/src/command/commands/transfer.rs

@@ -13,7 +13,6 @@ use crate::command::dispatcher::CommandError::{self, InvalidConsumption, Invalid
 use crate::command::tree::builder::{argument, argument_default_name, require};
 use crate::command::{CommandExecutor, CommandSender, args::ConsumedArgs, tree::CommandTree};
 use crate::entity::EntityBase;
-use crate::net::ClientPlatform;
 
 const NAMES: [&str; 1] = ["transfer"];
 
@@ -58,22 +57,12 @@ impl CommandExecutor for TargetSelfExecutor {
                 let name = &player.gameprofile.name;
                 info!("[{name}: Transferring {name} to {hostname}:{port}]");
 
-                match player.client.as_ref() {
-                    ClientPlatform::Java(client) => {
-                        client
-                            .enqueue_packet(&JavaCTransfer::new(hostname, VarInt(port)))
-                            .await;
-                    }
-                    ClientPlatform::Bedrock(client) => {
-                        client
-                            .send_game_packet(&BedrockCTransfer::new(
-                                hostname.to_string(),
-                                port as u16,
-                                false,
-                            ))
-                            .await;
-                    }
-                }
+                player
+                    .enqueue_packet_editioned(
+                        &JavaCTransfer::new(hostname, VarInt(port)),
+                        &BedrockCTransfer::new(hostname.to_string(), port as u16, false),
+                    )
+                    .await;
 
                 Ok(1)
             } else {
@@ -121,22 +110,11 @@ impl CommandExecutor for TargetPlayerExecutor {
             }
 
             for p in players {
-                match p.client.as_ref() {
-                    ClientPlatform::Java(client) => {
-                        client
-                            .enqueue_packet(&JavaCTransfer::new(hostname, VarInt(port)))
-                            .await;
-                    }
-                    ClientPlatform::Bedrock(client) => {
-                        client
-                            .send_game_packet(&BedrockCTransfer::new(
-                                hostname.to_string(),
-                                port as u16,
-                                false,
-                            ))
-                            .await;
-                    }
-                }
+                p.enqueue_packet_editioned(
+                    &JavaCTransfer::new(hostname, VarInt(port)),
+                    &BedrockCTransfer::new(hostname.to_string(), port as u16, false),
+                )
+                .await;
 
                 info!(
                     "[{sender}: Transferring {} to {hostname}:{port}]",

crates/pumpkin/src/command/commands/waypoint.rs

@@ -90,7 +90,7 @@ impl CommandExecutor for ColorExecutor {
             );
 
             if let Some(player) = sender.as_player() {
-                player.client.enqueue_packet(&packet).await;
+                player.send_client_packet(&packet).await;
             }
 
             match self.0 {
@@ -173,7 +173,7 @@ impl CommandExecutor for StyleExecutor {
             );
 
             if let Some(player) = sender.as_player() {
-                player.client.enqueue_packet(&packet).await;
+                player.send_client_packet(&packet).await;
             }
 
             sender

crates/pumpkin/src/entity/decoration/item_frame.rs

@@ -348,9 +348,10 @@ impl EntityBase for ItemFrameEntity {
         client: &'a crate::net::java::JavaClient,
     ) -> EntityBaseFuture<'a, ()> {
         Box::pin(async move {
-            client
-                .enqueue_packet(&self.entity.create_spawn_packet())
-                .await;
+            let spawn_packet = self.entity.create_spawn_packet();
+            if let Ok(data) = client.serialize_packet(&spawn_packet) {
+                client.enqueue_packet(data).await;
+            }
 
             let ver = client.version.load();
             if ver >= CURRENT_MC_VERSION {
@@ -370,12 +371,11 @@ impl EntityBase for ItemFrameEntity {
                     && meta_rot.write(&mut data, &ver).is_ok()
                 {
                     data.push(255);
-                    client
-                        .enqueue_packet(&CSetEntityMetadata::new(
-                            self.entity.entity_id.into(),
-                            data.into(),
-                        ))
-                        .await;
+                    let meta_packet =
+                        CSetEntityMetadata::new(self.entity.entity_id.into(), data.into());
+                    if let Ok(meta_data) = client.serialize_packet(&meta_packet) {
+                        client.enqueue_packet(meta_data).await;
+                    }
                 }
             }
         })

crates/pumpkin/src/entity/item.rs

@@ -656,7 +656,9 @@ impl EntityBase for ItemEntity {
                 metadata: entity.bedrock_metadata(),
                 from_fishing: false,
             };
-            client.send_game_packet(&packet).await;
+            if let Ok(data) = client.serialize_packet(&packet) {
+                client.send_game_packet(data).await;
+            }
         })
     }
 
@@ -665,9 +667,10 @@ impl EntityBase for ItemEntity {
         client: &'a crate::net::java::JavaClient,
     ) -> EntityBaseFuture<'a, ()> {
         Box::pin(async move {
-            client
-                .enqueue_packet(&self.entity.create_spawn_packet())
-                .await;
+            let spawn_packet = self.entity.create_spawn_packet();
+            if let Ok(data) = client.serialize_packet(&spawn_packet) {
+                client.enqueue_packet(data).await;
+            }
 
             if client.version.load() >= CURRENT_MC_VERSION {
                 let metadata = Metadata::new(
@@ -677,12 +680,11 @@ impl EntityBase for ItemEntity {
                 let mut data = Vec::new();
                 if metadata.write(&mut data, &client.version.load()).is_ok() {
                     data.push(255);
-                    client
-                        .enqueue_packet(&CSetEntityMetadata::new(
-                            self.entity.entity_id.into(),
-                            data.into(),
-                        ))
-                        .await;
+                    let meta_packet =
+                        CSetEntityMetadata::new(self.entity.entity_id.into(), data.into());
+                    if let Ok(meta_data) = client.serialize_packet(&meta_packet) {
+                        client.enqueue_packet(meta_data).await;
+                    }
                 }
             }
         })

crates/pumpkin/src/entity/mod.rs

@@ -333,24 +333,26 @@ pub trait EntityBase: Send + Sync + NBTStorage + std::any::Any {
                 },
                 Vec::new(),
             );
-            client.send_game_packet(&packet).await;
+            if let Ok(data) = client.serialize_packet(&packet) {
+                client.send_game_packet(data).await;
+            }
         })
     }
 
     fn send_java_spawn_packet<'a>(&'a self, client: &'a JavaClient) -> EntityBaseFuture<'a, ()> {
         Box::pin(async move {
-            client
-                .enqueue_packet(&self.get_entity().create_spawn_packet())
-                .await;
+            let spawn_packet = self.get_entity().create_spawn_packet();
+            if let Ok(data) = client.serialize_packet(&spawn_packet) {
+                client.enqueue_packet(data).await;
+            }
             if let Some(mob) = self.get_mob()
                 && let Some(metadata) = mob.mob_java_spawn_metadata(client.version.load()).await
             {
-                client
-                    .enqueue_packet(&CSetEntityMetadata::new(
-                        self.get_entity().entity_id.into(),
-                        metadata,
-                    ))
-                    .await;
+                let meta_packet =
+                    CSetEntityMetadata::new(self.get_entity().entity_id.into(), metadata);
+                if let Ok(meta_data) = client.serialize_packet(&meta_packet) {
+                    client.enqueue_packet(meta_data).await;
+                }
             }
         })
     }
@@ -1862,15 +1864,7 @@ impl Entity {
             0,
         );
         let world = self.world.load();
-        for player in world.players.load().iter() {
-            let center = player.get_entity().chunk_pos.load();
-            let view_distance = crate::world::chunker::get_view_distance(player).get() as i32;
-            if is_within_view_distance(chunk_pos, center, view_distance)
-                && let ClientPlatform::Bedrock(client) = player.client.as_ref()
-            {
-                client.try_enqueue_packet(&packet);
-            }
-        }
+        world.broadcast_to_chunk_bedrock(chunk_pos, &packet);
     }
 
     pub fn update_last_pos(&self) -> Vector3<f64> {
@@ -2684,10 +2678,11 @@ impl Entity {
         ));
     }
 
+    #[expect(clippy::unused_async)]
     pub async fn set_sneaking(&self, sneaking: bool) {
         //assert!(self.sneaking.load(Relaxed) != sneaking);
         self.sneaking.store(sneaking, Relaxed);
-        self.set_flag(Flag::Sneaking, sneaking).await;
+        self.set_flag(Flag::Sneaking, sneaking);
     }
     pub fn is_sneaking(&self) -> bool {
         self.sneaking.load(Ordering::Relaxed)
@@ -2707,31 +2702,34 @@ impl Entity {
                 return;
             }
             self.swimming.store(event.is_swimming, Relaxed);
-            self.set_flag(Flag::Swimming, event.is_swimming).await;
+            self.set_flag(Flag::Swimming, event.is_swimming);
         }
     }
 
     /// Sets whether the entity is invisible and sends updated metadata.
+    #[expect(clippy::unused_async)]
     pub async fn set_invisible(&self, invisible: bool) {
         if self.invisible.load(Ordering::Relaxed) != invisible {
             self.invisible.store(invisible, Relaxed);
-            self.set_flag(Flag::Invisible, invisible).await;
+            self.set_flag(Flag::Invisible, invisible);
         }
     }
 
     /// Sets whether the entity is glowing and sends updated metadata.
+    #[expect(clippy::unused_async)]
     pub async fn set_glowing(&self, glowing: bool) {
         if self.glowing.load(Ordering::Relaxed) != glowing {
             self.glowing.store(glowing, Ordering::Relaxed);
-            self.set_flag(Flag::Glowing, glowing).await;
+            self.set_flag(Flag::Glowing, glowing);
         }
     }
 
     /// Sets whether the entity is on fire for visual and damage purposes. This is separate from `fire_ticks` which tracks the damage aspect of being on fire.
+    #[expect(clippy::unused_async)]
     pub async fn set_on_fire(&self, on_fire: bool) {
         if self.has_visual_fire.load(Ordering::Relaxed) != on_fire {
             self.has_visual_fire.store(on_fire, Ordering::Relaxed);
-            self.set_flag(Flag::OnFire, on_fire).await;
+            self.set_flag(Flag::OnFire, on_fire);
         }
     }
 
@@ -2840,10 +2838,11 @@ impl Entity {
         ]
     }
 
+    #[expect(clippy::unused_async)]
     pub async fn set_sprinting(&self, sprinting: bool) {
         //assert!(self.sprinting.load(Relaxed) != sprinting);
         self.sprinting.store(sprinting, Relaxed);
-        self.set_flag(Flag::Sprinting, sprinting).await;
+        self.set_flag(Flag::Sprinting, sprinting);
     }
 
     pub fn is_sprinting(&self) -> bool {
@@ -2853,16 +2852,17 @@ impl Entity {
         !self.on_ground.load(Relaxed)
     }
 
+    #[expect(clippy::unused_async)]
     pub async fn set_fall_flying(&self, fall_flying: bool) {
         assert_ne!(self.fall_flying.load(Relaxed), fall_flying);
         self.fall_flying.store(fall_flying, Relaxed);
-        self.set_flag(Flag::FallFlying, fall_flying).await;
+        self.set_flag(Flag::FallFlying, fall_flying);
     }
     pub fn is_fall_flying(&self) -> bool {
         self.fall_flying.load(Ordering::Relaxed)
     }
 
-    async fn set_flag(&self, flag: Flag, value: bool) {
+    fn set_flag(&self, flag: Flag, value: bool) {
         let index = flag as u8;
         let mask = (1i8).wrapping_shl(index as u32);
         let new_je_flags = if value {
@@ -2904,36 +2904,25 @@ impl Entity {
 
             let world = self.world.load();
             let chunk_pos = self.chunk_pos.load();
-            for player in world.players.load().iter() {
-                if let ClientPlatform::Bedrock(client) = player.client.as_ref() {
-                    let center = player.get_entity().chunk_pos.load();
-                    let view_distance =
-                        crate::world::chunker::get_view_distance(player).get() as i32;
-
-                    if is_within_view_distance(chunk_pos, center, view_distance) {
-                        let mut metadata = EntityMetadata(std::collections::HashMap::new());
-                        metadata.set(
-                            entity_data_key::FLAGS,
-                            MetadataValue::Long(self.bedrock_flags.load(Ordering::Relaxed)),
-                        );
-                        metadata.set(
-                            entity_data_key::FLAGS_TWO,
-                            MetadataValue::Long(self.bedrock_flags_two.load(Ordering::Relaxed)),
-                        );
-                        client
-                            .enqueue_packet(&CSetActorData {
-                                actor_runtime_id: VarULong(self.entity_id as u64),
-                                metadata,
-                                synced_properties: PropertySyncData {
-                                    int_properties: std::collections::HashMap::new(),
-                                    float_properties: std::collections::HashMap::new(),
-                                },
-                                tick: VarULong(0),
-                            })
-                            .await;
-                    }
-                }
-            }
+            let mut metadata = EntityMetadata(std::collections::HashMap::new());
+            metadata.set(
+                entity_data_key::FLAGS,
+                MetadataValue::Long(self.bedrock_flags.load(Ordering::Relaxed)),
+            );
+            metadata.set(
+                entity_data_key::FLAGS_TWO,
+                MetadataValue::Long(self.bedrock_flags_two.load(Ordering::Relaxed)),
+            );
+            let packet = CSetActorData {
+                actor_runtime_id: VarULong(self.entity_id as u64),
+                metadata,
+                synced_properties: PropertySyncData {
+                    int_properties: std::collections::HashMap::new(),
+                    float_properties: std::collections::HashMap::new(),
+                },
+                tick: VarULong(0),
+            };
+            world.broadcast_to_chunk_bedrock(chunk_pos, &packet);
         }
     }
 
@@ -2951,49 +2940,58 @@ impl Entity {
     ) {
         let world = self.world.load();
         let chunk_pos = self.chunk_pos.load();
+        let players = world.players.load();
 
-        for player in world.players.load().iter() {
-            match player.client.as_ref() {
-                ClientPlatform::Java(client) => {
-                    let version = client.version.load();
-                    if version < CURRENT_MC_VERSION {
-                        continue;
-                    }
-                    // Apply Chebyshev distance check
-                    let center = player.get_entity().chunk_pos.load();
-                    let view_distance =
-                        crate::world::chunker::get_view_distance(player).get() as i32;
+        let mut java_recipients = Vec::new();
+        let mut bedrock_recipients = Vec::new();
 
-                    if is_within_view_distance(chunk_pos, center, view_distance) {
-                        let mut buf = Vec::new();
-                        for m in meta {
-                            let _ = m.write(&mut buf, &version);
-                        }
-                        buf.put_u8(255);
-                        player.client.try_enqueue_packet(&CSetEntityMetadata::new(
-                            self.entity_id.into(),
-                            buf.into(),
-                        ));
-                    }
+        for player in players.iter() {
+            let center = player.get_entity().chunk_pos.load();
+            let view_distance = crate::world::chunker::get_view_distance(player).get() as i32;
+
+            if is_within_view_distance(chunk_pos, center, view_distance) {
+                match player.client.as_ref() {
+                    ClientPlatform::Java(_) => java_recipients.push(player),
+                    ClientPlatform::Bedrock(client) => bedrock_recipients.push(client),
                 }
-                ClientPlatform::Bedrock(client) => {
-                    if let Some(bedrock_meta) = bedrock_meta {
-                        let center = player.get_entity().chunk_pos.load();
-                        let view_distance =
-                            crate::world::chunker::get_view_distance(player).get() as i32;
+            }
+        }
 
-                        if is_within_view_distance(chunk_pos, center, view_distance) {
-                            client.try_enqueue_packet(&CSetActorData {
-                                actor_runtime_id: VarULong(self.entity_id as u64),
-                                metadata: EntityMetadata(bedrock_meta.0.clone()),
-                                synced_properties: PropertySyncData {
-                                    int_properties: std::collections::HashMap::new(),
-                                    float_properties: std::collections::HashMap::new(),
-                                },
-                                tick: VarULong(0),
-                            });
-                        }
-                    }
+        let recipients_by_version =
+            World::collect_java_recipients_by_version(java_recipients.into_iter());
+
+        for (version, recipients) in recipients_by_version {
+            if version < CURRENT_MC_VERSION {
+                continue;
+            }
+            let mut buf = Vec::new();
+            for m in meta {
+                let _ = m.write(&mut buf, &version);
+            }
+            buf.put_u8(255);
+            let packet = CSetEntityMetadata::new(self.entity_id.into(), buf.into());
+            if let Ok(packet_data) = JavaClient::serialize_packet_for_version(&packet, version) {
+                for recipient in recipients {
+                    recipient.try_enqueue_packet(packet_data.clone());
+                }
+            }
+        }
+
+        if let Some(bedrock_meta) = bedrock_meta {
+            let packet = CSetActorData {
+                actor_runtime_id: VarULong(self.entity_id as u64),
+                metadata: EntityMetadata(bedrock_meta.0.clone()),
+                synced_properties: PropertySyncData {
+                    int_properties: std::collections::HashMap::new(),
+                    float_properties: std::collections::HashMap::new(),
+                },
+                tick: VarULong(0),
+            };
+            if let Ok(packet_data) =
+                pumpkin_protocol::bedrock::packet_encoder::serialize_packet(&packet)
+            {
+                for recipient in bedrock_recipients {
+                    recipient.try_enqueue_packet(packet_data.clone());
                 }
             }
         }
@@ -3447,7 +3445,7 @@ impl Entity {
             let world = self.world.load();
             let passengers_packet = CSetPassengers::new(VarInt(self.entity_id), &passenger_ids);
             if let Some(player) = passenger.get_player() {
-                player.client.enqueue_packet(&passengers_packet).await;
+                player.send_client_packet(&passengers_packet).await;
                 world.broadcast_to_chunk_except(
                     chunk_pos,
                     &[player.get_entity().entity_uuid],
@@ -3628,18 +3626,21 @@ impl Entity {
                 }
             };
 
+            // Clean up any remaining reference to the dismounted passenger.
+            passenger_entity.set_pos(dismount_pos);
+
+            // Phase 2: Teleport to safety (unblocks movement)
             if let Some(player) = passenger.get_player() {
                 if let Some(id) = teleport_id {
                     player.get_entity().set_pos(dismount_pos);
                     // Update awaiting_teleport with the real dismount position
                     *player.awaiting_teleport.lock().await = Some((id.into(), dismount_pos));
-                    // Use enqueue_packet (not send_packet_now) so the teleport goes through
+                    // Use send_client_packet so the teleport goes through
                     // the same packet queue as CSetPassengers, preserving send order.
                     // Vanilla uses DELTA | ROT flags: position absolute, delta/rotation relative.
                     // With rotation relative and yaw/pitch=0, the client preserves its current look.
                     player
-                        .client
-                        .enqueue_packet(&CPlayerPosition::new(
+                        .send_client_packet(&CPlayerPosition::new(
                             id.into(),
                             dismount_pos,
                             Vector3::new(0.0, 0.0, 0.0),

crates/pumpkin/src/entity/player.rs

@@ -62,16 +62,16 @@ pub struct JavaPlayer<'a>(pub &'a Player);
 
 impl JavaPlayer<'_> {
     pub async fn send_packet<C: pumpkin_protocol::ClientPacket + Sync>(&self, packet: &C) {
-        if let ClientPlatform::Java(client) = self.0.client.as_ref() {
-            client.enqueue_packet(packet).await;
+        if let ClientPlatform::Java(client) = self.0.client.as_ref()
+            && let Ok(data) = client.serialize_packet(packet)
+        {
+            client.enqueue_packet(data).await;
         }
     }
 
     pub async fn send_custom_payload(&self, channel: &str, data: &[u8]) {
-        if let ClientPlatform::Java(java) = self.0.client.as_ref() {
-            java.enqueue_packet(&CCustomPayload::new(channel, data))
-                .await;
-        }
+        let packet = CCustomPayload::new(channel, data);
+        self.send_packet(&packet).await;
     }
 
     pub async fn send_stats(&self) {
@@ -102,8 +102,10 @@ pub struct BedrockPlayer<'a>(pub &'a Player);
 
 impl BedrockPlayer<'_> {
     pub async fn send_packet<P: pumpkin_protocol::BClientPacket + Sync>(&self, packet: &P) {
-        if let ClientPlatform::Bedrock(client) = self.0.client.as_ref() {
-            client.send_game_packet(packet).await;
+        if let ClientPlatform::Bedrock(client) = self.0.client.as_ref()
+            && let Ok(data) = client.serialize_packet(packet)
+        {
+            client.enqueue_packet(data).await;
         }
     }
 
@@ -1070,8 +1072,7 @@ impl Player {
     pub async fn set_tab_list_header_footer(&self, header: TextComponent, footer: TextComponent) {
         *self.tab_list_header.lock().await = header.clone();
         *self.tab_list_footer.lock().await = footer.clone();
-        self.client
-            .enqueue_packet(&CTabList::new(&header, &footer))
+        self.send_client_packet(&CTabList::new(&header, &footer))
             .await;
     }
 
@@ -1084,8 +1085,7 @@ impl Player {
                 duration,
             },
         );
-        self.client
-            .send_packet_now(&CItemCooldown::new(group, VarInt(duration)))
+        self.send_client_packet(&CItemCooldown::new(group, VarInt(duration)))
             .await;
     }
 
@@ -2227,26 +2227,17 @@ impl Player {
     }
 
     pub async fn send_title_animation(&self, fade_in: i32, stay: i32, fade_out: i32) {
-        match self.client.as_ref() {
-            ClientPlatform::Java(client) => {
-                client
-                    .enqueue_packet(&CTitleAnimation::new(fade_in, stay, fade_out))
-                    .await;
-            }
-            ClientPlatform::Bedrock(client) => {
-                client
-                    .send_game_packet(
-                        &pumpkin_protocol::bedrock::client::set_title::CSetTitle::new(
-                            5,
-                            String::new(),
-                            fade_in,
-                            stay,
-                            fade_out,
-                        ),
-                    )
-                    .await;
-            }
-        }
+        self.enqueue_packet_editioned(
+            &CTitleAnimation::new(fade_in, stay, fade_out),
+            &pumpkin_protocol::bedrock::client::set_title::CSetTitle::new(
+                5,
+                String::new(),
+                fade_in,
+                stay,
+                fade_out,
+            ),
+        )
+        .await;
     }
 
     pub fn spawn_particle(
@@ -2257,7 +2248,7 @@ impl Player {
         particle_count: i32,
         particle: Particle,
     ) {
-        self.client.try_enqueue_packet(&CParticle::new(
+        let packet = CParticle::new(
             false,
             false,
             position,
@@ -2266,7 +2257,12 @@ impl Player {
             particle_count,
             VarInt(particle as i32),
             &[],
-        ));
+        );
+        if let ClientPlatform::Java(client) = self.client.as_ref()
+            && let Ok(data) = client.serialize_packet(&packet)
+        {
+            client.try_enqueue_packet(data);
+        }
     }
 
     pub async fn play_sound(
@@ -2278,16 +2274,8 @@ impl Player {
         pitch: f32,
         seed: f64,
     ) {
-        self.client
-            .enqueue_packet(&CSoundEffect::new(
-                IdOr::Id(sound_id),
-                category,
-                position,
-                volume,
-                pitch,
-                seed,
-            ))
-            .await;
+        let packet = CSoundEffect::new(IdOr::Id(sound_id), category, position, volume, pitch, seed);
+        self.send_client_packet(&packet).await;
     }
 
     pub async fn play_sound_event(
@@ -2299,16 +2287,8 @@ impl Player {
         pitch: f32,
         seed: f64,
     ) {
-        self.client
-            .enqueue_packet(&CSoundEffect::new(
-                IdOr::Value(sound),
-                category,
-                position,
-                volume,
-                pitch,
-                seed,
-            ))
-            .await;
+        let packet = CSoundEffect::new(IdOr::Value(sound), category, position, volume, pitch, seed);
+        self.send_client_packet(&packet).await;
     }
 
     /// Stops a sound playing on the client.
@@ -2322,9 +2302,8 @@ impl Player {
         sound_id: Option<ResourceLocation>,
         category: Option<SoundCategory>,
     ) {
-        self.client
-            .enqueue_packet(&CStopSound::new(sound_id, category))
-            .await;
+        let packet = CStopSound::new(sound_id, category);
+        self.send_client_packet(&packet).await;
     }
 
     #[expect(clippy::too_many_lines)]
@@ -2348,8 +2327,7 @@ impl Player {
                 } else {
                     // Target no longer exists, reset camera back to player
                     self.camera_target_id.store(None);
-                    self.client
-                        .send_packet_now(&CSetCamera::new(self.entity_id().into()))
+                    self.send_client_packet(&CSetCamera::new(self.entity_id().into()))
                         .await;
                 }
             }
@@ -2416,9 +2394,9 @@ impl Player {
                 && !self.bedrock_spawned.load(Ordering::Relaxed)
                 && total_sent_chunks > 4
             {
-                bedrock_client
-                    .enqueue_packet(&CPlayStatus::PlayerSpawn)
-                    .await;
+                if let Ok(data) = bedrock_client.serialize_packet(&CPlayStatus::PlayerSpawn) {
+                    bedrock_client.enqueue_packet(data).await;
+                }
                 self.bedrock_spawned.store(true, Ordering::Relaxed);
                 self.set_client_loaded(true);
                 self.send_health().await;
@@ -2717,12 +2695,10 @@ impl Player {
                 if abilities.creative {
                     b |= 8;
                 }
-                java.enqueue_packet(&CPlayerAbilities::new(
-                    b,
-                    abilities.fly_speed,
-                    abilities.walk_speed,
-                ))
-                .await;
+                let packet = CPlayerAbilities::new(b, abilities.fly_speed, abilities.walk_speed);
+                if let Ok(data) = java.serialize_packet(&packet) {
+                    java.enqueue_packet(data).await;
+                }
             }
             ClientPlatform::Bedrock(bedrock) => {
                 let abilities = self.abilities.lock().await;
@@ -2797,7 +2773,9 @@ impl Player {
                     layers,
                 };
 
-                bedrock.send_game_packet(&packet).await;
+                if let Ok(data) = bedrock.serialize_packet(&packet) {
+                    bedrock.send_game_packet(data).await;
+                }
             }
         }
     }
@@ -2815,10 +2793,12 @@ impl Player {
                 })
                 .collect();
 
-            java.enqueue_packet(&CAwardStats {
+            let packet = CAwardStats {
                 stats: &packet_stats,
-            })
-            .await;
+            };
+            if let Ok(data) = java.serialize_packet(&packet) {
+                java.enqueue_packet(data).await;
+            }
         }
     }
 
@@ -3062,15 +3042,54 @@ impl Player {
         je_packet: &J,
         be_packet: &B,
     ) {
-        match self.client.as_ref() {
-            ClientPlatform::Java(client) => client.enqueue_packet(je_packet).await,
-            ClientPlatform::Bedrock(client) => client.enqueue_packet(be_packet).await,
-        }
+        self.client
+            .enqueue_packet_editioned(je_packet, be_packet)
+            .await;
+    }
+
+    pub async fn enqueue_packet_editioned<
+        J: pumpkin_protocol::ClientPacket + Sync,
+        B: pumpkin_protocol::BClientPacket + Sync,
+    >(
+        &self,
+        je_packet: &J,
+        be_packet: &B,
+    ) {
+        self.client
+            .enqueue_packet_editioned(je_packet, be_packet)
+            .await;
+    }
+
+    pub fn try_enqueue_packet_editioned<
+        J: pumpkin_protocol::ClientPacket + Sync,
+        B: pumpkin_protocol::BClientPacket + Sync,
+    >(
+        &self,
+        je_packet: &J,
+        be_packet: &B,
+    ) {
+        self.client
+            .try_enqueue_packet_editioned(je_packet, be_packet);
+    }
+
+    pub async fn send_packet_now_editioned<
+        J: pumpkin_protocol::ClientPacket + Sync,
+        B: pumpkin_protocol::BClientPacket + Sync,
+    >(
+        &self,
+        je_packet: &J,
+        be_packet: &B,
+    ) {
+        self.client
+            .send_packet_now_editioned(je_packet, be_packet)
+            .await;
     }
 
     pub async fn send_client_packet<C: pumpkin_protocol::ClientPacket + Sync>(&self, packet: &C) {
-        if let ClientPlatform::Java(client) = self.client.as_ref() {
-            client.enqueue_packet(packet).await;
+        if let ClientPlatform::Java(client) = self.client.as_ref()
+            && let Ok(data) = client.serialize_packet(packet)
+        {
+            client.enqueue_packet(data).await;
         }
     }
 
@@ -3129,8 +3148,7 @@ impl Player {
     pub async fn set_compass_target(&self, pos: pumpkin_util::math::position::BlockPos) {
         use pumpkin_protocol::java::client::play::CPlayerSpawnPosition;
         self.compass_target.store(Some(pos));
-        self.client
-            .enqueue_packet(&CPlayerSpawnPosition::new(pos, 0.0, 0.0, String::new()))
+        self.send_client_packet(&CPlayerSpawnPosition::new(pos, 0.0, 0.0, String::new()))
             .await;
     }
 
@@ -3272,8 +3290,7 @@ impl Player {
             level.clean_entity_chunks(&chunks_to_clean);
         }
         for chunk in &chunks_to_clean {
-            self.client
-                .enqueue_packet(&CUnloadChunk::new(chunk.x, chunk.y))
+            self.send_client_packet(&CUnloadChunk::new(chunk.x, chunk.y))
                 .await;
         }
 
@@ -3352,7 +3369,7 @@ impl Player {
                 ));
                 match self.client.as_ref() {
                     ClientPlatform::Java(java) => {
-                        java.send_packet_now(&CRespawn::new(
+                        let packet = CRespawn::new(
                             PlayerSpawnData::new(
                                 new_world.dimension.clone(),
                                 biome::hash_seed(new_world.level.seed.0), // seed
@@ -3365,7 +3382,10 @@ impl Player {
                                 new_world.sea_level.into(),
                             ),
                             CRespawn::KEEP_ALL_DATA,
-                        )).await;
+                        );
+                        if let Ok(data) = java.serialize_packet(&packet) {
+                            java.send_packet_now(data).await;
+                        }
                     }
                     ClientPlatform::Bedrock(bedrock) => {
                         let bedrock_dimension = if new_world.dimension == Dimension::OVERWORLD {
@@ -3383,7 +3403,9 @@ impl Player {
                             pos_f32,
                             false,
                         );
-                        bedrock.enqueue_packet(&change_dim_packet).await;
+                        if let Ok(data) = bedrock.serialize_packet(&change_dim_packet) {
+                            bedrock.enqueue_packet(data).await;
+                        }
                         self.bedrock_spawned.store(false, Ordering::Relaxed);
                     }
                 }
@@ -3440,40 +3462,42 @@ impl Player {
                     ClientPlatform::Java(client) => {
                         *self.awaiting_teleport.lock().await =
                             Some((teleport_id.into(), position));
-                        client
-                            .send_packet_now(&CPlayerPosition::new(
-                                teleport_id.into(),
-                                position,
-                                Vector3::new(0.0, 0.0, 0.0),
-                                yaw,
-                                pitch,
-                                // TODO
-                                Vec::new(),
-                            ))
-                            .await;
+                        let packet = CPlayerPosition::new(
+                            teleport_id.into(),
+                            position,
+                            Vector3::new(0.0, 0.0, 0.0),
+                            yaw,
+                            pitch,
+                            // TODO
+                            Vec::new(),
+                        );
+                        if let Ok(data) = client.serialize_packet(&packet) {
+                            client.send_packet_now(data).await;
+                        }
                     }
                     ClientPlatform::Bedrock(client) => {
-                        client
-                            .send_game_packet(&CBedrockMovePlayer::new(
-                                VarULong(self.entity_id() as u64),
-                                Vector3::new(
-                                    position.x as f32,
-                                    position.y as f32 + entity.entity_type.eye_height,
-                                    position.z as f32,
-                                ),
-                                pitch,
-                                yaw,
-                                yaw,
-                                CBedrockMovePlayer::MODE_TELEPORT,
-                                false,
-                                VarULong(0),
-                                0,
-                                0,
-                                VarULong(
-                                    self.tick_counter.load(Ordering::Relaxed).max(0) as u64,
-                                ),
-                            ))
-                            .await;
+                        let packet = CBedrockMovePlayer::new(
+                            VarULong(self.entity_id() as u64),
+                            Vector3::new(
+                                position.x as f32,
+                                position.y as f32 + entity.entity_type.eye_height,
+                                position.z as f32,
+                            ),
+                            pitch,
+                            yaw,
+                            yaw,
+                            CBedrockMovePlayer::MODE_TELEPORT,
+                            false,
+                            VarULong(0),
+                            0,
+                            0,
+                            VarULong(
+                                self.tick_counter.load(Ordering::Relaxed).max(0) as u64,
+                            ),
+                        );
+                        if let Ok(data) = client.serialize_packet(&packet) {
+                            client.send_game_packet(data).await;
+                        }
                     }
                 }
             }
@@ -3623,59 +3647,50 @@ impl Player {
             return;
         }
 
-        match self.client.as_ref() {
-            ClientPlatform::Java(client) => {
-                client
-                    .enqueue_packet(&CSetHealth::new(
+        let max_health = self.living_entity.get_max_health();
+        let attribute = |name: &str, current_value, max_value, default_value| BedrockAttribute {
+            min_value: 0.0,
+            max_value,
+            current_value,
+            default_min_value: 0.0,
+            default_max_value: max_value,
+            default_value,
+            name: name.to_string(),
+            modifiers_list_size: pumpkin_protocol::codec::var_uint::VarUInt(0),
+        };
+
+        self.enqueue_packet_editioned(
+            &CSetHealth::new(
+                self.living_entity.health.load(),
+                self.hunger_manager.level.load().into(),
+                self.hunger_manager.saturation.load(),
+            ),
+            &CBedrockAttributes {
+                runtime_id: VarULong(self.entity_id() as u64),
+                attributes: vec![
+                    attribute(
+                        "minecraft:health",
                         self.living_entity.health.load(),
+                        max_health,
+                        max_health,
+                    ),
+                    attribute(
+                        "minecraft:player.hunger",
                         self.hunger_manager.level.load().into(),
+                        20.0,
+                        20.0,
+                    ),
+                    attribute(
+                        "minecraft:player.saturation",
                         self.hunger_manager.saturation.load(),
-                    ))
-                    .await;
-            }
-            ClientPlatform::Bedrock(client) => {
-                let max_health = self.living_entity.get_max_health();
-                let attribute =
-                    |name: &str, current_value, max_value, default_value| BedrockAttribute {
-                        min_value: 0.0,
-                        max_value,
-                        current_value,
-                        default_min_value: 0.0,
-                        default_max_value: max_value,
-                        default_value,
-                        name: name.to_string(),
-                        modifiers_list_size: pumpkin_protocol::codec::var_uint::VarUInt(0),
-                    };
-                client
-                    .enqueue_packet(&CBedrockAttributes {
-                        runtime_id: VarULong(self.entity_id() as u64),
-                        attributes: vec![
-                            attribute(
-                                "minecraft:health",
-                                self.living_entity.health.load(),
-                                max_health,
-                                max_health,
-                            ),
-                            attribute(
-                                "minecraft:player.hunger",
-                                self.hunger_manager.level.load().into(),
-                                20.0,
-                                20.0,
-                            ),
-                            attribute(
-                                "minecraft:player.saturation",
-                                self.hunger_manager.saturation.load(),
-                                20.0,
-                                5.0,
-                            ),
-                        ],
-                        player_tick: VarULong(
-                            self.tick_counter.load(Ordering::Relaxed).max(0) as u64
-                        ),
-                    })
-                    .await;
-            }
-        }
+                        20.0,
+                        5.0,
+                    ),
+                ],
+                player_tick: VarULong(self.tick_counter.load(Ordering::Relaxed).max(0) as u64),
+            },
+        )
+        .await;
     }
 
     async fn send_bedrock_respawn_state(&self, state: RespawnState) {
@@ -3683,7 +3698,7 @@ impl Player {
             let entity = self.get_entity();
             let position = entity.pos.load();
             client
-                .send_game_packet(&CBedrockRespawn::new(
+                .send_packet(&CBedrockRespawn::new(
                     Vector3::new(
                         position.x as f32,
                         position.y as f32 + entity.entity_type.eye_height,
@@ -4034,7 +4049,7 @@ impl Player {
 
                 if gamemode != GameMode::Spectator && self.camera_target_id.load().is_some() {
                     self.camera_target_id.store(None);
-                    self.client.send_packet_now(&CSetCamera::new(
+                    self.send_client_packet(&CSetCamera::new(
                         self.entity_id().into()
                     )).await;
                 }
@@ -4165,14 +4180,13 @@ impl Player {
         sender_name: &TextComponent,
         target_name: Option<&TextComponent>,
     ) {
-        self.client
-            .enqueue_packet(&CDisguisedChatMessage::new(
-                message,
-                (chat_type + 1).into(),
-                sender_name,
-                target_name,
-            ))
-            .await;
+        self.send_client_packet(&CDisguisedChatMessage::new(
+            message,
+            (chat_type + 1).into(),
+            sender_name,
+            target_name,
+        ))
+        .await;
     }
 
     pub async fn drop_item(&self, item_stack: ItemStack) {
@@ -4283,32 +4297,24 @@ impl Player {
     }
 
     pub async fn send_system_message_raw(&self, text: &TextComponent, overlay: bool) {
-        match self.client.as_ref() {
-            ClientPlatform::Java(client) => {
-                client
-                    .enqueue_packet(&CSystemChatMessage::new(text, overlay))
-                    .await;
+        let je_packet = CSystemChatMessage::new(text, overlay);
+        let locale = Locale::from_str(&self.config.load().locale).unwrap_or(Locale::EnUs);
+        let be_packet = match &*text.0.content {
+            pumpkin_util::text::TextContent::Translate {
+                translate,
+                bedrock_translate,
+                with,
+            } => {
+                let key = bedrock_translate.as_deref().unwrap_or(translate.as_ref());
+                let parameters = with
+                    .iter()
+                    .map(pumpkin_util::text::TextComponentBase::to_bedrock_string)
+                    .collect();
+                SText::translation(key.to_string(), parameters)
             }
-            ClientPlatform::Bedrock(client) => {
-                let locale = Locale::from_str(&self.config.load().locale).unwrap_or(Locale::EnUs);
-                let packet = match &*text.0.content {
-                    pumpkin_util::text::TextContent::Translate {
-                        translate,
-                        bedrock_translate,
-                        with,
-                    } => {
-                        let key = bedrock_translate.as_deref().unwrap_or(translate.as_ref());
-                        let parameters = with
-                            .iter()
-                            .map(pumpkin_util::text::TextComponentBase::to_bedrock_string)
-                            .collect();
-                        SText::translation(key.to_string(), parameters)
-                    }
-                    _ => SText::system_message(text.0.to_bedrock_legacy(locale)),
-                };
-                client.enqueue_packet(&packet).await;
-            }
-        }
+            _ => SText::system_message(text.0.to_bedrock_legacy(locale)),
+        };
+        self.enqueue_packet_editioned(&je_packet, &be_packet).await;
     }
 
     pub async fn tick_experience(&self) {
@@ -4323,13 +4329,12 @@ impl Player {
 
             self.last_sent_xp.store(level, Ordering::Relaxed);
 
-            self.client
-                .send_packet_now(&CSetExperience::new(
-                    progress.clamp(0.0, 1.0),
-                    level.into(),
-                    points.into(),
-                ))
-                .await;
+            self.send_client_packet(&CSetExperience::new(
+                progress.clamp(0.0, 1.0),
+                level.into(),
+                points.into(),
+            ))
+            .await;
         }
     }
 
@@ -4396,15 +4401,14 @@ impl Player {
                             data: &*map_data.colors,
                         });
 
-                        self.client
-                            .enqueue_packet(&CMapItemData {
-                                map_id: VarInt(map_id),
-                                scale: map_data.scale,
-                                locked: map_data.locked,
-                                icons: Some(&icons),
-                                data,
-                            })
-                            .await;
+                        self.send_client_packet(&CMapItemData {
+                            map_id: VarInt(map_id),
+                            scale: map_data.scale,
+                            locked: map_data.locked,
+                            icons: Some(&icons),
+                            data,
+                        })
+                        .await;
                         map_data.dirty = false;
                     }
                 }
@@ -4434,13 +4438,12 @@ impl Player {
         self.tick_experience().await;
 
         if self.has_client_loaded() {
-            self.client
-                .enqueue_packet(&CSetExperience::new(
-                    progress.clamp(0.0, 1.0),
-                    level.into(),
-                    points.into(),
-                ))
-                .await;
+            self.send_client_packet(&CSetExperience::new(
+                progress.clamp(0.0, 1.0),
+                level.into(),
+                points.into(),
+            ))
+            .await;
         }
     }
 
@@ -4510,27 +4513,25 @@ impl Player {
         }
 
         let effect_id = VarInt(i32::from(effect.effect_type.id));
-        self.client
-            .enqueue_packet(&CUpdateMobEffect::new(
-                self.entity_id().into(),
-                effect_id,
-                effect.amplifier.into(),
-                effect.duration.into(),
-                flag,
-            ))
-            .await;
+        self.send_client_packet(&CUpdateMobEffect::new(
+            self.entity_id().into(),
+            effect_id,
+            effect.amplifier.into(),
+            effect.duration.into(),
+            flag,
+        ))
+        .await;
     }
 
     pub async fn remove_effect(&self, effect_type: &'static StatusEffect) -> bool {
         let effect_id = VarInt(i32::from(effect_type.id));
-        self.client
-            .enqueue_packet(
-                &pumpkin_protocol::java::client::play::CRemoveMobEffect::new(
-                    self.entity_id().into(),
-                    effect_id,
-                ),
-            )
-            .await;
+        self.send_client_packet(
+            &pumpkin_protocol::java::client::play::CRemoveMobEffect::new(
+                self.entity_id().into(),
+                effect_id,
+            ),
+        )
+        .await;
 
         self.living_entity.remove_effect(effect_type).await
 
@@ -4543,14 +4544,13 @@ impl Player {
         for effect in self.living_entity.active_effects.lock().await.keys() {
             effect_list.push(*effect);
             let effect_id = VarInt(i32::from(effect.id));
-            self.client
-                .enqueue_packet(
-                    &pumpkin_protocol::java::client::play::CRemoveMobEffect::new(
-                        self.entity_id().into(),
-                        effect_id,
-                    ),
-                )
-                .await;
+            self.send_client_packet(
+                &pumpkin_protocol::java::client::play::CRemoveMobEffect::new(
+                    self.entity_id().into(),
+                    effect_id,
+                ),
+            )
+            .await;
             succeeded = true;
         }
 
@@ -6342,7 +6342,9 @@ impl InventoryPlayer for Player {
         Box::pin(async move {
             match self.client.as_ref() {
                 ClientPlatform::Java(java) => {
-                    java.enqueue_packet(packet).await;
+                    if let Ok(data) = java.serialize_packet(packet) {
+                        java.enqueue_packet(data).await;
+                    }
                 }
                 ClientPlatform::Bedrock(bedrock) => {
                     use pumpkin_protocol::bedrock::{
@@ -6375,7 +6377,9 @@ impl InventoryPlayer for Player {
                             },
                             storage_item: NetworkItemStackDescriptor::default(),
                         };
-                        bedrock.enqueue_packet(&bedrock_packet).await;
+                        if let Ok(data) = bedrock.serialize_packet(&bedrock_packet) {
+                            bedrock.enqueue_packet(data).await;
+                        }
                     } else if matches!(
                         window_type,
                         Some(
@@ -6408,7 +6412,9 @@ impl InventoryPlayer for Player {
                             },
                             storage_item: NetworkItemStackDescriptor::default(),
                         };
-                        bedrock.enqueue_packet(&bedrock_packet).await;
+                        if let Ok(data) = bedrock.serialize_packet(&bedrock_packet) {
+                            bedrock.enqueue_packet(data).await;
+                        }
                     }
                 }
             }
@@ -6424,7 +6430,9 @@ impl InventoryPlayer for Player {
         Box::pin(async move {
             match self.client.as_ref() {
                 ClientPlatform::Java(java) => {
-                    java.enqueue_packet(packet).await;
+                    if let Ok(data) = java.serialize_packet(packet) {
+                        java.enqueue_packet(data).await;
+                    }
                 }
                 ClientPlatform::Bedrock(bedrock) => {
                     use pumpkin_protocol::bedrock::{
@@ -6449,7 +6457,9 @@ impl InventoryPlayer for Player {
                                 storage: None,
                                 item: item_desc,
                             };
-                            bedrock.enqueue_packet(&bedrock_packet).await;
+                            if let Ok(data) = bedrock.serialize_packet(&bedrock_packet) {
+                                bedrock.enqueue_packet(data).await;
+                            }
                         }
                     } else {
                         let slot_idx = packet.slot as usize;
@@ -6493,7 +6503,9 @@ impl InventoryPlayer for Player {
                                 storage: None,
                                 item: item_desc,
                             };
-                            bedrock.enqueue_packet(&bedrock_packet).await;
+                            if let Ok(data) = bedrock.serialize_packet(&bedrock_packet) {
+                                bedrock.enqueue_packet(data).await;
+                            }
                         }
                     }
                 }
@@ -6505,7 +6517,9 @@ impl InventoryPlayer for Player {
         Box::pin(async move {
             match self.client.as_ref() {
                 ClientPlatform::Java(java) => {
-                    java.enqueue_packet(packet).await;
+                    if let Ok(data) = java.serialize_packet(packet) {
+                        java.enqueue_packet(data).await;
+                    }
                 }
                 ClientPlatform::Bedrock(bedrock) => {
                     use pumpkin_protocol::bedrock::{
@@ -6526,7 +6540,9 @@ impl InventoryPlayer for Player {
                         },
                         storage_item: NetworkItemStackDescriptor::default(),
                     };
-                    bedrock.enqueue_packet(&bedrock_packet).await;
+                    if let Ok(data) = bedrock.serialize_packet(&bedrock_packet) {
+                        bedrock.enqueue_packet(data).await;
+                    }
                 }
             }
         })
@@ -6537,7 +6553,7 @@ impl InventoryPlayer for Player {
         packet: &'a CSetContainerProperty,
     ) -> PlayerFuture<'a, ()> {
         Box::pin(async move {
-            self.client.enqueue_packet(packet).await;
+            self.send_client_packet(packet).await;
         })
     }
 
@@ -6548,7 +6564,9 @@ impl InventoryPlayer for Player {
         Box::pin(async move {
             match self.client.as_ref() {
                 ClientPlatform::Java(java) => {
-                    java.enqueue_packet(packet).await;
+                    if let Ok(data) = java.serialize_packet(packet) {
+                        java.enqueue_packet(data).await;
+                    }
                 }
                 ClientPlatform::Bedrock(bedrock) => {
                     use pumpkin_protocol::bedrock::{
@@ -6576,7 +6594,9 @@ impl InventoryPlayer for Player {
                         storage: None,
                         item: item_desc,
                     };
-                    bedrock.enqueue_packet(&bedrock_packet).await;
+                    if let Ok(data) = bedrock.serialize_packet(&bedrock_packet) {
+                        bedrock.enqueue_packet(data).await;
+                    }
                 }
             }
         })

crates/pumpkin/src/entity/player/advancement.rs

@@ -394,8 +394,7 @@ impl PlayerAdvancement {
                 let first_packet = self.is_first_packet;
                 tokio::spawn(async move {
                     player
-                        .client
-                        .send_packet_now(&CUpdateAdvancements::new(
+                        .send_client_packet(&CUpdateAdvancements::new(
                             first_packet,
                             added,
                             parsed_progress,
@@ -516,8 +515,7 @@ impl PlayerAdvancement {
             && let Some(player) = self.player.upgrade()
         {
             player
-                .client
-                .send_packet_now(&CSelectAdvancementsTab::new(
+                .send_client_packet(&CSelectAdvancementsTab::new(
                     self.last_selected_tab.map(|adv| adv.id.clone()),
                 ))
                 .await;

crates/pumpkin/src/item/items/writable_book.rs

@@ -26,8 +26,7 @@ impl ItemBehaviour for WritableBookItem {
         Box::pin(async move {
             if item.id == Item::WRITTEN_BOOK.id {
                 player
-                    .client
-                    .enqueue_packet(&COpenBook::new(VarInt(0))) // 0 = main hand
+                    .send_client_packet(&COpenBook::new(VarInt(0))) // 0 = main hand
                     .await;
                 player.world().play_sound(
                     Sound::ItemBookPageTurn,

crates/pumpkin/src/lib.rs

@@ -18,7 +18,7 @@ use crate::net::bedrock::{
 };
 use crate::net::java::JavaClient;
 use crate::net::java::pending::PendingConnection;
-use crate::net::{ClientPlatform, DisconnectReason, PacketHandlerResult};
+use crate::net::{ClientPlatform, DisconnectReason, PacketHandlerResult, PacketRateLimiter};
 use crate::net::{lan_broadcast::LANBroadcast, query, rcon::RCONServer};
 use crate::plugin::server::server_command::ServerCommandEvent;
 use crate::server::{Server, ticker::Ticker};
@@ -542,7 +542,15 @@ impl PumpkinServer {
                         let server_clone = self.server.clone();
 
                         tasks.spawn(async move {
-                            let mut pending = PendingConnection::new(connection, client_addr, client_id);
+                            let packet_limiter = PacketRateLimiter::from_config(
+                                &server_clone.advanced_config.networking.java.packet_limiter,
+                            );
+                            let mut pending = PendingConnection::new(
+                                connection,
+                                client_addr,
+                                client_id,
+                                packet_limiter,
+                            );
                             let login_result = pending.handle_login_sequence(&server_clone).await;
 
                             match login_result {
@@ -609,10 +617,14 @@ impl PumpkinServer {
                 if let Some((session, client_addr)) = nethernet_result {
                     *master_client_id_counter += 1;
                     let be_clients = bedrock_clients.clone();
+                    let packet_limiter = PacketRateLimiter::from_config(
+                        &self.server.advanced_config.networking.bedrock.packet_limiter,
+                    );
                     let client = Arc::new(BedrockClient::new(
                         session.clone(),
                         client_addr,
                         be_clients,
+                        packet_limiter,
                     ));
                     client.start_outgoing_packet_task();
                     bedrock_clients.lock().await.insert(client_addr, client.clone());

crates/pumpkin/src/net/bedrock/login/login.rs

@@ -80,8 +80,7 @@ impl BedrockClient {
             ));
         }
 
-        self.enqueue_packet_internal(&CPlayStatus::LoginSuccess)
-            .await;
+        self.enqueue_client_packet(&CPlayStatus::LoginSuccess).await;
         let br_config = &server.advanced_config.resource_pack.bedrock;
 
         let mut entries = Vec::new();
@@ -111,7 +110,7 @@ impl BedrockClient {
             world_template_version: String::new(),
             resource_packs: entries,
         };
-        self.enqueue_packet_internal(&packs_info).await;
+        self.enqueue_client_packet(&packs_info).await;
 
         let new_config = PlayerConfig {
             locale: client_data.language_code.clone(),

crates/pumpkin/src/net/bedrock/login/request_network_settings.rs

@@ -8,10 +8,10 @@ impl BedrockClient {
         server: &Server,
     ) {
         if packet.protocol_version < CURRENT_BEDROCK_MC_PROTOCOL as i32 {
-            self.send_game_packet(&CPlayStatus::OutdatedClient).await;
+            self.send_packet(&CPlayStatus::OutdatedClient).await;
             return;
         } else if packet.protocol_version > CURRENT_BEDROCK_MC_PROTOCOL as i32 {
-            self.send_game_packet(&CPlayStatus::OutdatedServer).await;
+            self.send_packet(&CPlayStatus::OutdatedServer).await;
             return;
         }
 
@@ -26,7 +26,7 @@ impl BedrockClient {
             .compression
             .info
             .clone();
-        self.send_game_packet(&CNetworkSettings::new(
+        self.send_packet(&CNetworkSettings::new(
             compression.threshold as u16,
             0,
             false,

crates/pumpkin/src/net/bedrock/login/resource_pack_response.rs

@@ -40,7 +40,7 @@ impl BedrockClient {
                     Vec::new()
                 };
 
-                self.enqueue_packet_internal(&CResourcePackStackPacket::new(
+                self.enqueue_client_packet(&CResourcePackStackPacket::new(
                     br_config.force,
                     resource_packs,
                     CURRENT_BEDROCK_MC_VERSION.to_string(),

crates/pumpkin/src/net/bedrock/mod.rs

@@ -58,7 +58,7 @@ pub mod login;
 use self::nethernet::NetherNetSession;
 use crate::{
     entity::player::Player,
-    net::{DisconnectReason, PacketHandlerResult},
+    net::{DisconnectReason, PacketHandlerResult, PacketRateLimiter},
     plugin::api::events::world::chunk_send::ChunkSend,
     server::Server,
 };
@@ -123,6 +123,8 @@ pub struct BedrockClient {
     last_seen: Arc<AtomicCell<std::time::Instant>>,
     incoming_game_packet_send: Sender<RawPacket>,
     incoming_game_packet_recv: Mutex<Option<Receiver<RawPacket>>>,
+    /// Packet rate limiter for incoming client packets.
+    pub packet_limiter: PacketRateLimiter,
 }
 
 impl BedrockClient {
@@ -131,6 +133,7 @@ impl BedrockClient {
         session: Arc<NetherNetSession>,
         address: SocketAddr,
         be_clients: Arc<Mutex<HashMap<SocketAddr, Arc<Self>>>>,
+        packet_limiter: PacketRateLimiter,
     ) -> Self {
         let (send, recv) = tokio::sync::mpsc::channel(4096);
         let (priority_send, priority_recv) = tokio::sync::mpsc::channel(4096);
@@ -159,6 +162,7 @@ impl BedrockClient {
             last_seen: Arc::new(AtomicCell::new(std::time::Instant::now())),
             incoming_game_packet_send: incoming_send,
             incoming_game_packet_recv: Mutex::new(Some(incoming_recv)),
+            packet_limiter,
         }
     }
 
@@ -266,7 +270,7 @@ impl BedrockClient {
     }
 
     pub async fn kick(&self, reason: DisconnectReason, message: String) {
-        self.send_game_packet(&CDisconnectPlayer::new(reason as i32, message))
+        self.send_packet(&CDisconnectPlayer::new(reason as i32, message))
             .await;
         self.close().await;
     }
@@ -280,7 +284,7 @@ impl BedrockClient {
         send_packet: bool,
     ) {
         if send_packet {
-            self.send_game_packet(&CDisconnectPlayer {
+            self.send_packet(&CDisconnectPlayer {
                 reason: pumpkin_protocol::codec::var_int::VarInt(reason as i32),
                 skip_message,
                 message,
@@ -383,62 +387,12 @@ impl BedrockClient {
         self.player.store(Arc::new(Some(player)));
     }
 
-    pub async fn enqueue_packet<P: BClientPacket>(&self, packet: &P) {
-        let mut packet_buf = Vec::new();
-        match self.write_game_packet(packet, &mut packet_buf).await {
-            Ok(()) => {
-                let payload = Bytes::from(packet_buf);
-                let player = self.player.load_full();
-                if let Some(player) = player.as_ref() {
-                    let event = player
-                        .fire_packet_sent_event_no_obj(P::PACKET_ID, payload)
-                        .await;
-                    if !event.cancelled {
-                        self.enqueue_packet_data(event.payload).await;
-                    }
-                } else {
-                    self.enqueue_packet_data(payload).await;
-                }
-            }
-            Err(err) => error!("Failed to write game packet: {err}"),
-        }
+    pub async fn enqueue_packet(&self, packet_data: Bytes) {
+        self.enqueue_packet_data(packet_data).await;
     }
 
-    pub async fn enqueue_packet_internal<P: BClientPacket>(&self, packet: &P) {
-        let mut packet_buf = Vec::new();
-        match self.write_game_packet(packet, &mut packet_buf).await {
-            Ok(()) => self.enqueue_packet_data(packet_buf.into()).await,
-            Err(err) => error!("Failed to write game packet: {err}"),
-        }
-    }
-
-    pub fn try_enqueue_packet<P: BClientPacket>(&self, packet: &P) {
-        let mut packet_buf = Vec::new();
-        let mut packet_payload = Vec::new();
-        if let Err(err) = packet.write_packet(&mut packet_payload) {
-            error!("Failed to write packet for try_enqueue_packet: {err}");
-            return;
-        }
-
-        {
-            let Ok(network_writer) = self.network_writer.try_read() else {
-                debug!("Failed to lock network writer for try_enqueue_packet");
-                return;
-            };
-
-            if let Err(err) = network_writer.write_game_packet(
-                P::PACKET_ID as u16,
-                SubClient::Main,
-                SubClient::Main,
-                &packet_payload,
-                &mut packet_buf,
-            ) {
-                error!("Failed to write game packet for try_enqueue_packet: {err}");
-                return;
-            }
-        }
-
-        self.try_enqueue_packet_data(packet_buf.into());
+    pub fn try_enqueue_packet(&self, packet_data: Bytes) {
+        self.try_enqueue_packet_data(packet_data);
     }
 
     /// Queues a clientbound packet to be sent to the connected client. Queued chunks are sent
@@ -446,7 +400,7 @@ impl BedrockClient {
     ///
     /// # Arguments
     ///
-    /// * `packet`: A reference to a packet object implementing the `ClientPacket` trait.
+    /// * `packet_data`: A `Bytes` payload representing the encoded packet.
     pub async fn enqueue_packet_data(&self, packet_data: Bytes) {
         if let Err(err) = self
             .outgoing_packet_queue_send
@@ -508,37 +462,38 @@ impl BedrockClient {
         )
     }
 
-    pub async fn send_game_packet<P: BClientPacket>(&self, packet: &P) {
-        let mut packet_buf = Vec::new();
-        match self.write_game_packet(packet, &mut packet_buf).await {
-            Ok(()) => {
-                let payload = Bytes::from(packet_buf);
-                let player = self.player.load_full();
-                let payload = if let Some(player) = player.as_ref() {
-                    let event = player
-                        .fire_packet_sent_event_no_obj(P::PACKET_ID, payload)
-                        .await;
-                    if event.cancelled {
-                        return;
-                    }
-                    event.payload
-                } else {
-                    payload
-                };
-                let (tx, rx) = oneshot::channel();
-                if let Err(err) = self
-                    .outgoing_packet_priority_send
-                    .send(OutgoingPacket::priority(payload, tx))
-                    .await
-                {
-                    if !self.is_closed() {
-                        error!("Failed to add priority packet to the outgoing packet queue: {err}");
-                    }
-                } else {
-                    let _ = rx.await;
-                }
+    pub fn serialize_packet<P: BClientPacket>(&self, packet: &P) -> Result<Bytes, Error> {
+        let encoder = self.network_writer.try_read();
+        encoder.map_or_else(
+            |_| pumpkin_protocol::bedrock::packet_encoder::serialize_packet(packet),
+            |encoder| encoder.serialize_packet(packet),
+        )
+    }
+
+    pub async fn send_packet<P: BClientPacket>(&self, packet: &P) {
+        if let Ok(data) = self.serialize_packet(packet) {
+            self.send_game_packet(data).await;
+        }
+    }
+
+    pub async fn enqueue_client_packet<P: BClientPacket>(&self, packet: &P) {
+        if let Ok(data) = self.serialize_packet(packet) {
+            self.enqueue_packet(data).await;
+        }
+    }
+
+    pub async fn send_game_packet(&self, packet_data: Bytes) {
+        let (tx, rx) = oneshot::channel();
+        if let Err(err) = self
+            .outgoing_packet_priority_send
+            .send(OutgoingPacket::priority(packet_data, tx))
+            .await
+        {
+            if !self.is_closed() {
+                error!("Failed to add priority packet to the outgoing packet queue: {err}");
             }
-            Err(err) => error!("Failed to write game packet: {err}"),
+        } else {
+            let _ = rx.await;
         }
     }
 
@@ -585,6 +540,27 @@ impl BedrockClient {
                 .await
                 .get_game_packet(&mut cursor)
                 .map_err(|e| Error::other(e.to_string()))?;
+
+            if !self.packet_limiter.check_packet() {
+                warn!(
+                    "Bedrock client {} exceeded packet rate limit (rate: {}/s)",
+                    self.address,
+                    self.packet_limiter.max_rate()
+                );
+                self.kick(
+                    DisconnectReason::Kicked,
+                    server
+                        .advanced_config
+                        .networking
+                        .bedrock
+                        .packet_limiter
+                        .kick_message
+                        .clone(),
+                )
+                .await;
+                return Err(Error::other("Packet rate limit exceeded"));
+            }
+
             self.handle_game_packet(server, game_packet).await?;
         }
 
@@ -811,7 +787,7 @@ impl BedrockClient {
             }
         }
         if !missing_blobs.is_empty() {
-            self.send_game_packet(&CClientCacheMissResponse {
+            self.send_packet(&CClientCacheMissResponse {
                 blobs: &missing_blobs,
             })
             .await;

crates/pumpkin/src/net/bedrock/play/block_pick_request.rs

@@ -90,7 +90,7 @@ impl BedrockClient {
         player.living_entity.send_equipment_changes(equipment);
 
         // Sync bedrock inventory updates
-        self.enqueue_packet(&CInventoryContent {
+        self.enqueue_client_packet(&CInventoryContent {
             container_id: VarUInt(0),
             slots: player
                 .inventory()

crates/pumpkin/src/net/bedrock/play/container_close.rs

@@ -8,7 +8,7 @@ impl BedrockClient {
         }
         player.on_handled_screen_closed().await;
 
-        self.enqueue_packet(&SContainerClose {
+        self.enqueue_client_packet(&SContainerClose {
             container_id: packet.container_id,
             container_type: packet.container_type,
             server_initiated: false,
@@ -16,7 +16,7 @@ impl BedrockClient {
         .await;
 
         // Sync the cursor (make it empty) to Bedrock client
-        self.enqueue_packet(&CInventoryContent {
+        self.enqueue_client_packet(&CInventoryContent {
             container_id: VarUInt(59), // Cursor container ID
             slots: vec![NetworkItemStackDescriptor::default()],
             full_container_name: FullContainerName {
@@ -28,7 +28,7 @@ impl BedrockClient {
         .await;
 
         // Sync the inventory content to Bedrock client
-        self.enqueue_packet(&CInventoryContent {
+        self.enqueue_client_packet(&CInventoryContent {
             container_id: VarUInt(0), // player inventory
             slots: player
                 .inventory()

crates/pumpkin/src/net/bedrock/play/interaction.rs

@@ -30,7 +30,7 @@ impl BedrockClient {
                     return;
                 }
                 self.inventory_opened.store(true, Ordering::Relaxed);
-                self.enqueue_packet(&CContainerOpen {
+                self.enqueue_client_packet(&CContainerOpen {
                     container_id: 0,
                     container_type: 0xff,
                     position: BlockPos::ZERO,

crates/pumpkin/src/net/bedrock/play/inventory_action.rs

@@ -119,7 +119,7 @@ impl BedrockClient {
         }
 
         if inventory_updated {
-            self.enqueue_packet(&CInventoryContent {
+            self.enqueue_client_packet(&CInventoryContent {
                 container_id: VarUInt(0),
                 slots: player
                     .inventory()
@@ -444,7 +444,7 @@ impl BedrockClient {
                 }
             }
 
-            self.enqueue_packet(&CItemStackResponse {
+            self.enqueue_client_packet(&CItemStackResponse {
                 responses: vec![ItemStackResponse {
                     result,
                     request_id: packet.legacy_request_id,

crates/pumpkin/src/net/bedrock/play/item_stack_request.rs

@@ -514,10 +514,11 @@ impl BedrockClient {
         }
 
         // Send Bedrock specific responses and updates
-        self.enqueue_packet(&CItemStackResponse { responses }).await;
+        self.enqueue_client_packet(&CItemStackResponse { responses })
+            .await;
 
         if inventory_updated {
-            self.enqueue_packet(&CInventoryContent {
+            self.enqueue_client_packet(&CInventoryContent {
                 container_id: VarUInt(0),
                 slots: player
                     .inventory()

crates/pumpkin/src/net/bedrock/play/mob_equipment.rs

@@ -23,7 +23,7 @@ impl BedrockClient {
                 event.cancelled()
             };
             if is_cancelled {
-                self.enqueue_packet(&CPlayerHotbar {
+                self.enqueue_client_packet(&CPlayerHotbar {
                     selected_slot: VarUInt(previous_slot as u32),
                     container_id: 0,
                     should_select_block: true,

crates/pumpkin/src/net/bedrock/play/player_action.rs

@@ -167,7 +167,7 @@ impl BedrockClient {
                         }
                     } else {
                         let runtime_id = pumpkin_data::BlockState::to_be_network_id(state.id);
-                        self.enqueue_packet(&CUpdateBlock::new(location, runtime_id as u32))
+                        self.enqueue_client_packet(&CUpdateBlock::new(location, runtime_id as u32))
                             .await;
                         if matches!(action, PlayerAction::StopBreak) {
                             player.stop_mining().await;

crates/pumpkin/src/net/bedrock/play/request_chunk_radius.rs

@@ -25,7 +25,7 @@ impl BedrockClient {
             NonZero::<i32>::from(server.advanced_config.networking.bedrock.view_distance).get(),
         );
 
-        self.enqueue_packet(&CChunkRadiusUpdate {
+        self.enqueue_client_packet(&CChunkRadiusUpdate {
             chunk_radius: VarInt(view_distance),
         })
         .await;

crates/pumpkin/src/net/bedrock/play/respawn.rs

@@ -12,7 +12,7 @@ impl BedrockClient {
 
         let entity = player.get_entity();
         let position = entity.pos.load();
-        self.enqueue_packet(&CRespawn::new(
+        self.enqueue_client_packet(&CRespawn::new(
             pumpkin_util::math::vector3::Vector3::new(
                 position.x as f32,
                 position.y as f32 + entity.entity_type.eye_height,

crates/pumpkin/src/net/java/config/keep_alive.rs

@@ -2,17 +2,24 @@
 use super::*;
 
 impl JavaClient {
-    pub async fn handle_config_keep_alive(&self, keep_alive: SKeepAlive) {
-        if self.wait_for_keep_alive.load(Ordering::Relaxed)
-            && keep_alive.keep_alive_id == self.keep_alive_id.load()
+    pub fn handle_config_keep_alive(&self, keep_alive: &SKeepAlive) {
+        let mut pending = self
+            .pending_keep_alives
+            .lock()
+            .unwrap_or_else(std::sync::PoisonError::into_inner);
+        if let Some(pos) = pending
+            .iter()
+            .position(|(id, _)| *id == keep_alive.keep_alive_id)
         {
+            pending.swap_remove(pos);
+            self.wait_for_keep_alive.store(false, Ordering::Relaxed);
+        } else if keep_alive.keep_alive_id == self.keep_alive_id.load() {
             self.wait_for_keep_alive.store(false, Ordering::Relaxed);
         } else {
-            self.kick(pumpkin_macros::translate_cross!(
-                translation::java::DISCONNECT_TIMEOUT,
-                translation::bedrock::DISCONNECT_TIMEOUT
-            ))
-            .await;
+            debug!(
+                "Ignored unexpected config keep alive id {}",
+                keep_alive.keep_alive_id
+            );
         }
     }
 }

crates/pumpkin/src/net/java/config/known_packs.rs

@@ -11,7 +11,7 @@ impl JavaClient {
         // let mut tags_to_send = Vec::new();
         let version = self.version.load();
         if version >= JavaMinecraftVersion::V_1_20_2 {
-            self.send_packet_now(&CFeatureFlags::new(&["minecraft:vanilla".to_string()]))
+            self.send_packet(&CFeatureFlags::new(&["minecraft:vanilla".to_string()]))
                 .await;
             let registry = Registry::get_synced(version);
             let mut sent_dimension_type = false;
@@ -19,7 +19,7 @@ impl JavaClient {
                 if reg.registry_id == "minecraft:dimension_type" {
                     sent_dimension_type = true;
                 }
-                self.send_packet_now(&CRegistryData::new(&reg.registry_id, &reg.registry_entries))
+                self.send_packet(&CRegistryData::new(&reg.registry_id, &reg.registry_entries))
                     .await;
             }
             if !sent_dimension_type {
@@ -36,7 +36,7 @@ impl JavaClient {
                         data: Some(build_dimension_nbt(dim).into_boxed_slice()),
                     })
                     .collect();
-                self.send_packet_now(&CRegistryData::new(
+                self.send_packet(&CRegistryData::new(
                     &"minecraft:dimension_type".to_string(),
                     &dim_entries,
                 ))
@@ -71,10 +71,10 @@ impl JavaClient {
                 tags.push(key);
             }
         }
-        self.send_packet_now(&CUpdateTags::new(&tags)).await;
+        self.send_packet(&CUpdateTags::new(&tags)).await;
 
         // We are done with configuring
-        self.send_packet_now(&CFinishConfig).await;
+        self.send_packet(&CFinishConfig).await;
 
         if version < JavaMinecraftVersion::V_1_20_2 {
             return Some(self.handle_config_acknowledged(server).await);

crates/pumpkin/src/net/java/config/mod.rs

@@ -9,7 +9,7 @@ use crate::{
     server::Server,
 };
 use core::str;
-use pumpkin_data::{registry::Registry, translation};
+use pumpkin_data::registry::Registry;
 use pumpkin_protocol::{
     ConnectionState, KnownPack,
     java::{

crates/pumpkin/src/net/java/config/resource_pack.rs

@@ -74,7 +74,7 @@ impl JavaClient {
 
     pub async fn send_known_packs(&self) {
         let version_str = self.version.load().to_string();
-        self.send_packet_now(&CKnownPacks::new(&[KnownPack {
+        self.send_packet(&CKnownPacks::new(&[KnownPack {
             namespace: "minecraft",
             id: "core",
             version: &version_str,

crates/pumpkin/src/net/java/mod.rs

@@ -63,7 +63,7 @@ use arc_swap::ArcSwap;
 use pending::PendingConnection;
 
 use crate::entity::player::Player;
-use crate::net::{GameProfile, PacketHandlerResult, PlayerConfig};
+use crate::net::{GameProfile, PacketHandlerResult, PacketRateLimiter, PlayerConfig};
 use crate::plugin::api::events::world::chunk_send::ChunkSend;
 use crate::plugin::player::player_custom_payload::PlayerCustomPayloadEvent;
 use crate::{error::PumpkinError, server::Server};
@@ -109,8 +109,14 @@ pub struct JavaClient {
     pub keep_alive_id: AtomicCell<i64>,
     /// The last time we sent a keep alive packet.
     pub last_keep_alive_time: AtomicCell<Instant>,
+    /// The last time any packet was received from the client.
+    pub last_packet_time: AtomicCell<Instant>,
+    /// Recent in-flight keep alive IDs with their sent timestamps.
+    pub pending_keep_alives: std::sync::Mutex<Vec<(i64, Instant)>>,
 
     pub packet_sequence: AtomicI32,
+    /// Packet rate limiter for incoming client packets.
+    pub packet_limiter: PacketRateLimiter,
 }
 
 pub enum OutgoingPacketType {
@@ -170,7 +176,10 @@ impl JavaClient {
             wait_for_keep_alive: AtomicBool::new(false),
             keep_alive_id: AtomicCell::new(0),
             last_keep_alive_time: AtomicCell::new(Instant::now()),
+            last_packet_time: AtomicCell::new(Instant::now()),
+            pending_keep_alives: std::sync::Mutex::new(Vec::new()),
             packet_sequence: AtomicI32::new(-1),
+            packet_limiter: pending.packet_limiter,
         }
     }
 
@@ -178,6 +187,7 @@ impl JavaClient {
         self.player.store(Arc::new(Some(player)));
     }
 
+    #[expect(clippy::too_many_lines)]
     pub async fn progress_player_packets(&self, player: &Arc<Player>, server: &Arc<Server>) {
         let Some(mut network_reader) = self
             .network_reader
@@ -188,7 +198,11 @@ impl JavaClient {
             return;
         };
 
-        let mut keep_alive_interval = tokio::time::interval(std::time::Duration::from_secs(15));
+        let keep_alive_time = server.advanced_config.networking.java.keep_alive_time;
+        let mut keep_alive_interval =
+            tokio::time::interval(std::time::Duration::from_secs(keep_alive_time.max(1)));
+        let timeout_duration =
+            std::time::Duration::from_secs(keep_alive_time.saturating_mul(2).max(1));
 
         // Skip the immediate first tick so we don't send a keep-alive the exact millisecond they join
         keep_alive_interval.tick().await;
@@ -197,8 +211,17 @@ impl JavaClient {
             tokio::select! {
                 // KEEP-ALIVE TIMER
                 _ = keep_alive_interval.tick() => {
-                    // If the client never responded to the LAST keep-alive, they timed out.
-                    if self.wait_for_keep_alive.load(Ordering::Relaxed) {
+                    // Check if the client has timed out on keep-alive responses or no packet activity
+                    let has_timed_out = {
+                        let pending = self
+                            .pending_keep_alives
+                            .lock()
+                            .unwrap_or_else(std::sync::PoisonError::into_inner);
+                        pending.iter().any(|(_, send_time)| send_time.elapsed() > timeout_duration)
+                    } || (self.wait_for_keep_alive.load(Ordering::Relaxed) && self.last_keep_alive_time.load().elapsed() > timeout_duration)
+                      || (self.last_packet_time.load().elapsed() > timeout_duration);
+
+                    if has_timed_out {
                         self.kick(pumpkin_macros::translate_cross!(translation::java::DISCONNECT_TIMEOUT, translation::bedrock::DISCONNECT_TIMEOUT)).await;
                         break;
                     }
@@ -212,8 +235,18 @@ impl JavaClient {
                     self.keep_alive_id.store(keep_alive_id);
                     self.wait_for_keep_alive.store(true, Ordering::Relaxed);
                     self.last_keep_alive_time.store(Instant::now());
+                    {
+                        let mut pending = self
+                            .pending_keep_alives
+                            .lock()
+                            .unwrap_or_else(std::sync::PoisonError::into_inner);
+                        pending.push((keep_alive_id, Instant::now()));
+                        if pending.len() > 16 {
+                            pending.remove(0);
+                        }
+                    }
                     let packet = pumpkin_protocol::java::client::play::CKeepAlive::new(keep_alive_id);
-                    self.enqueue_packet(&packet).await;
+                    self.enqueue_client_packet(&packet).await;
                 }
 
                 // INCOMING PACKETS
@@ -221,6 +254,27 @@ impl JavaClient {
                     let Some(packet) = packet_opt else {
                         break;
                     };
+                    self.last_packet_time.store(Instant::now());
+
+                    if !self.packet_limiter.check_packet() {
+                        warn!(
+                            "Client {} ({}) exceeded packet rate limit (rate: {}/s)",
+                            self.id,
+                            self.gameprofile.name,
+                            self.packet_limiter.max_rate()
+                        );
+                        self.kick(TextComponent::text(
+                            server
+                                .advanced_config
+                                .networking
+                                .java
+                                .packet_limiter
+                                .kick_message
+                                .clone(),
+                        ))
+                        .await;
+                        break;
+                    }
 
                     match self.handle_play_packet(player, server, &packet).await {
                         Ok(()) => {}
@@ -249,7 +303,7 @@ impl JavaClient {
                     // it interacted with and drops our updates for that position
                     let seq = self.packet_sequence.swap(-1, Ordering::Relaxed);
                     if seq != -1 {
-                        self.send_packet_now(&CAcknowledgeBlockChange::new(seq.into()))
+                        self.send_packet(&CAcknowledgeBlockChange::new(seq.into()))
                             .await;
                     }
                 }
@@ -282,10 +336,6 @@ impl JavaClient {
     pub async fn send_chunks(&self, chunks: &[SyncChunk]) {
         let player = self.player.load_full();
         let Some(player) = player.as_ref() else {
-            debug!(
-                "send_chunks: player not set yet, dropping {} chunks",
-                chunks.len()
-            );
             return;
         };
         let Some(server) = player.world().server.upgrade() else {
@@ -293,7 +343,7 @@ impl JavaClient {
         };
 
         if self.version.load() >= JavaMinecraftVersion::V_1_20_2 {
-            self.send_packet_now(&CChunkBatchStart).await;
+            self.send_packet(&CChunkBatchStart).await;
         }
         for chunk in chunks {
             let mut event = ChunkSend::new(player.world(), chunk.clone());
@@ -315,55 +365,15 @@ impl JavaClient {
             self.send_packet_now_data(buf.into()).await;
         }
         if self.version.load() >= JavaMinecraftVersion::V_1_20_2 {
-            self.send_packet_now(&CChunkBatchEnd::new(chunks.len() as u16))
+            self.send_packet(&CChunkBatchEnd::new(chunks.len() as u16))
                 .await;
         }
     }
 
-    pub async fn enqueue_packet<P: ClientPacket>(&self, packet: &P) {
-        let mut buf = Vec::new();
-        let writer = &mut buf;
-        if let Err(err) = self.write_packet(packet, writer) {
-            error!("Failed to write packet: {err:?}");
-            return;
-        }
-        if buf.is_empty() {
-            return;
-        }
-        let payload = Bytes::from(buf);
-
-        let player = self.player.load_full();
-        if let Some(player) = player.as_ref() {
-            let event = player
-                .fire_packet_sent_event_no_obj(P::to_id(self.version.load()), payload)
-                .await;
-            if !event.cancelled {
-                self.enqueue_packet_data(event.payload).await;
-            }
-        } else {
-            self.enqueue_packet_data(payload).await;
-        }
+    pub async fn enqueue_packet(&self, packet_data: Bytes) {
+        self.enqueue_packet_data(packet_data).await;
     }
 
-    pub fn try_enqueue_packet<P: ClientPacket>(&self, packet: &P) {
-        let mut buf = Vec::new();
-        let writer = &mut buf;
-        if let Err(err) = self.write_packet(packet, writer) {
-            error!("Failed to write packet: {err:?}");
-            return;
-        }
-        if buf.is_empty() {
-            return;
-        }
-        self.try_enqueue_packet_data(buf.into());
-    }
-
-    /// Queues a clientbound packet to be sent to the connected client. Queued chunks are sent
-    /// in-order to the client
-    ///
-    /// # Arguments
-    ///
-    /// * `packet`: A reference to a packet object implementing the `ClientPacket` trait.
     pub async fn enqueue_packet_data(&self, packet_data: Bytes) {
         if let Err(err) = self
             .outgoing_packet_queue_send
@@ -372,14 +382,21 @@ impl JavaClient {
         {
             // This is expected to fail if we are closed
             if !self.close_token.is_cancelled() {
-                error!(
+                warn!(
                     "Failed to add packet to the outgoing packet queue for client {}: {}",
                     self.id, err
                 );
+                // We now need to close the connection to the client since the stream is in an
+                // unknown state
+                self.close();
             }
         }
     }
 
+    pub fn try_enqueue_packet(&self, packet_data: Bytes) {
+        self.try_enqueue_packet_data(packet_data);
+    }
+
     pub fn try_enqueue_packet_data(&self, packet_data: Bytes) {
         if let Err(err) = self
             .outgoing_packet_queue_send
@@ -394,10 +411,11 @@ impl JavaClient {
                 }
                 tokio::sync::mpsc::error::TrySendError::Closed(_) => {
                     if !self.close_token.is_cancelled() {
-                        error!(
+                        warn!(
                             "Failed to add packet to the outgoing packet queue for client {}: channel closed",
                             self.id
                         );
+                        self.close();
                     }
                 }
             }
@@ -442,16 +460,16 @@ impl JavaClient {
             match self.connection_state.load() {
                 ConnectionState::Login => {
                     // TextComponent implements Serialize and writes in bytes instead of String, that's the reason we only use content
-                    self.send_packet_now(&CLoginDisconnect::new(
+                    self.send_packet(&CLoginDisconnect::new(
                         serde_json::to_string(&reason.0).unwrap_or_else(|_| String::new()),
                     ))
                     .await;
                 }
                 ConnectionState::Config => {
-                    self.send_packet_now(&CConfigDisconnect::new(&reason.clone().get_text()))
+                    self.send_packet(&CConfigDisconnect::new(&reason.clone().get_text()))
                         .await;
                 }
-                ConnectionState::Play => self.send_packet_now(&CPlayDisconnect::new(reason)).await,
+                ConnectionState::Play => self.send_packet(&CPlayDisconnect::new(reason)).await,
                 _ => {}
             }
         }
@@ -459,29 +477,8 @@ impl JavaClient {
         self.close();
     }
 
-    pub async fn send_packet_now<P: ClientPacket>(&self, packet: &P) {
-        let mut packet_buf = Vec::new();
-        let writer = &mut packet_buf;
-        if let Err(err) = self.write_packet(packet, writer) {
-            error!("Failed to write packet: {err:?}");
-            return;
-        }
-        if packet_buf.is_empty() {
-            return;
-        }
-        let payload = Bytes::from(packet_buf);
-
-        let player = self.player.load_full();
-        if let Some(player) = player.as_ref() {
-            let event = player
-                .fire_packet_sent_event_no_obj(P::to_id(self.version.load()), payload)
-                .await;
-            if !event.cancelled {
-                self.send_packet_now_data(event.payload).await;
-            }
-        } else {
-            self.send_packet_now_data(payload).await;
-        }
+    pub async fn send_packet_now(&self, packet: Bytes) {
+        self.send_packet_now_data(packet).await;
     }
 
     pub async fn send_packet_now_data(&self, packet: Bytes) {
@@ -514,24 +511,32 @@ impl JavaClient {
     pub fn write_packet_for_version<P: ClientPacket>(
         packet: &P,
         version: JavaMinecraftVersion,
-        mut write: impl Write,
+        write: impl Write,
     ) -> Result<(), WritingError> {
-        let version_number = P::to_id(version);
-        if version_number == -1 {
-            return Ok(());
-        }
-        write.write_var_int(&VarInt(version_number))?;
-        packet.write_packet_data(write, &version)
+        pumpkin_protocol::java::packet_encoder::write_packet(packet, &version, write)
     }
 
     pub fn serialize_packet_for_version<P: ClientPacket>(
         packet: &P,
         version: JavaMinecraftVersion,
     ) -> Result<Bytes, WritingError> {
-        let mut packet_buf = Vec::new();
+        pumpkin_protocol::java::packet_encoder::serialize_packet(packet, &version)
+    }
 
-        Self::write_packet_for_version(packet, version, &mut packet_buf)?;
-        Ok(packet_buf.into())
+    pub fn serialize_packet<P: ClientPacket>(&self, packet: &P) -> Result<Bytes, WritingError> {
+        Self::serialize_packet_for_version(packet, self.version.load())
+    }
+
+    pub async fn send_packet<P: ClientPacket>(&self, packet: &P) {
+        if let Ok(data) = self.serialize_packet(packet) {
+            self.send_packet_now(data).await;
+        }
+    }
+
+    pub async fn enqueue_client_packet<P: ClientPacket>(&self, packet: &P) {
+        if let Ok(data) = self.serialize_packet(packet) {
+            self.enqueue_packet(data).await;
+        }
     }
 
     pub fn write_packet<P: ClientPacket>(
@@ -761,9 +766,11 @@ impl JavaClient {
             id if id == pumpkin_protocol::java::server::play::SKeepAlive::to_id(version) => {
                 self.handle_keep_alive(
                     player,
-                    pumpkin_protocol::java::server::play::SKeepAlive::read(&mut payload, &version)?,
-                )
-                .await;
+                    &pumpkin_protocol::java::server::play::SKeepAlive::read(
+                        &mut payload,
+                        &version,
+                    )?,
+                );
             }
             id if id == SClientTickEnd::to_id(version) => {
                 // TODO

crates/pumpkin/src/net/java/pending.rs

@@ -33,7 +33,10 @@ use tracing::{debug, error, warn};
 
 use crate::{
     entity::player::ChatMode,
-    net::{EncryptionError, GameProfile, PacketHandlerResult, PlayerConfig, can_not_join},
+    net::{
+        EncryptionError, GameProfile, PacketHandlerResult, PacketRateLimiter, PlayerConfig,
+        can_not_join,
+    },
     server::Server,
 };
 
@@ -53,11 +56,17 @@ pub struct PendingConnection {
     pub gameprofile: Option<GameProfile>,
     pub config: Option<PlayerConfig>,
     pub brand: Option<String>,
+    pub packet_limiter: PacketRateLimiter,
 }
 
 impl PendingConnection {
     #[must_use]
-    pub fn new(tcp_stream: TcpStream, address: SocketAddr, id: u64) -> Self {
+    pub fn new(
+        tcp_stream: TcpStream,
+        address: SocketAddr,
+        id: u64,
+        packet_limiter: PacketRateLimiter,
+    ) -> Self {
         let (read, write) = tcp_stream.into_split();
         Self {
             id,
@@ -71,6 +80,7 @@ impl PendingConnection {
             gameprofile: None,
             config: None,
             brand: None,
+            packet_limiter,
         }
     }
 
@@ -172,6 +182,25 @@ impl PendingConnection {
 
     pub async fn handle_login_sequence(&mut self, server: &Arc<Server>) -> PacketHandlerResult {
         while let Some(packet) = self.get_packet().await {
+            if !self.packet_limiter.check_packet() {
+                warn!(
+                    "Pending client {} exceeded packet rate limit (rate: {}/s)",
+                    self.id,
+                    self.packet_limiter.max_rate()
+                );
+                self.kick(TextComponent::text(
+                    server
+                        .advanced_config
+                        .networking
+                        .java
+                        .packet_limiter
+                        .kick_message
+                        .clone(),
+                ))
+                .await;
+                return PacketHandlerResult::Stop;
+            }
+
             match self.handle_packet(server, &packet).await {
                 Ok(result) => {
                     if let Some(result) = result {

crates/pumpkin/src/net/java/play/command_suggestion.rs

@@ -31,6 +31,6 @@ impl JavaClient {
             suggestions.into(),
         );
 
-        self.enqueue_packet(&response).await;
+        self.enqueue_client_packet(&response).await;
     }
 }

crates/pumpkin/src/net/java/play/interact.rs

@@ -36,10 +36,7 @@ impl JavaClient {
         if let Some(target) = target {
             if player.gamemode.load() == GameMode::Spectator {
                 player.camera_target_id.store(Some(entity_id.0));
-                player
-                    .client
-                    .send_packet_now(&CSetCamera::new(entity_id))
-                    .await;
+                player.send_client_packet(&CSetCamera::new(entity_id)).await;
                 return;
             }
             send_cancellable! {{

crates/pumpkin/src/net/java/play/keep_alive.rs

@@ -2,23 +2,35 @@
 use super::*;
 
 impl JavaClient {
-    pub async fn handle_keep_alive(&self, player: &Player, keep_alive: SKeepAlive) {
-        if self.wait_for_keep_alive.load(Ordering::Relaxed)
-            && keep_alive.keep_alive_id == self.keep_alive_id.load()
+    pub fn handle_keep_alive(&self, player: &Player, keep_alive: &SKeepAlive) {
+        let mut pending = self
+            .pending_keep_alives
+            .lock()
+            .unwrap_or_else(std::sync::PoisonError::into_inner);
+        if let Some(pos) = pending
+            .iter()
+            .position(|(id, _)| *id == keep_alive.keep_alive_id)
         {
-            let ping = self.last_keep_alive_time.load().elapsed();
+            let (_, send_time) = pending.swap_remove(pos);
+            let ping = send_time.elapsed().as_millis() as u32;
             // Vanilla logic
             player.ping.store(
-                (player.ping.load(Ordering::Relaxed) * 3 + ping.as_millis() as u32) / 4,
+                (player.ping.load(Ordering::Relaxed) * 3 + ping) / 4,
+                Ordering::Relaxed,
+            );
+            self.wait_for_keep_alive.store(false, Ordering::Relaxed);
+        } else if keep_alive.keep_alive_id == self.keep_alive_id.load() {
+            let ping = self.last_keep_alive_time.load().elapsed().as_millis() as u32;
+            player.ping.store(
+                (player.ping.load(Ordering::Relaxed) * 3 + ping) / 4,
                 Ordering::Relaxed,
             );
             self.wait_for_keep_alive.store(false, Ordering::Relaxed);
         } else {
-            self.kick(pumpkin_macros::translate_cross!(
-                translation::java::DISCONNECT_TIMEOUT,
-                translation::bedrock::DISCONNECT_TIMEOUT
-            ))
-            .await;
+            debug!(
+                "Ignored unexpected or duplicate keep alive id {} from player {}",
+                keep_alive.keep_alive_id, player.gameprofile.name
+            );
         }
     }
 }

crates/pumpkin/src/net/java/play/pick_item.rs

@@ -40,8 +40,7 @@ impl JavaClient {
         }
 
         player
-            .client
-            .enqueue_packet(&CSetSelectedSlot::new(
+            .send_client_packet(&CSetSelectedSlot::new(
                 player.inventory.get_selected_slot() as i8
             ))
             .await;
@@ -104,8 +103,7 @@ impl JavaClient {
             }
 
             player
-                .client
-                .enqueue_packet(&CSetSelectedSlot::new(
+                .send_client_packet(&CSetSelectedSlot::new(
                     player.inventory.get_selected_slot() as i8
                 ))
                 .await;

crates/pumpkin/src/net/java/play/ping_request.rs

@@ -3,7 +3,7 @@ use super::*;
 
 impl JavaClient {
     pub async fn handle_play_ping_request(&self, request: SPlayPingRequest) {
-        self.enqueue_packet(&CPingResponse::new(request.payload))
+        self.enqueue_client_packet(&CPingResponse::new(request.payload))
             .await;
     }
 }

crates/pumpkin/src/net/java/play/player_action.rs

@@ -66,7 +66,7 @@ impl JavaClient {
                     let inventory = player.inventory();
                     let held = inventory.held_item().await;
                     if !server.item_registry.can_mine(held.item, player) {
-                        self.enqueue_packet(&CBlockUpdate::new(
+                        self.enqueue_client_packet(&CBlockUpdate::new(
                             position,
                             VarInt(i32::from(state.id.as_u16())),
                         ))
@@ -277,7 +277,7 @@ impl JavaClient {
 
     async fn sync_block_state_to_client(&self, world: &World, position: BlockPos) {
         let synced_state_id = world.get_block_state_id(&position);
-        self.send_packet_now(&CBlockUpdate::new(
+        self.send_packet(&CBlockUpdate::new(
             position,
             VarInt(i32::from(synced_state_id.as_u16())),
         ))

crates/pumpkin/src/net/java/play/player_input.rs

@@ -27,8 +27,7 @@ impl JavaClient {
         {
             player.camera_target_id.store(None);
             player
-                .client
-                .send_packet_now(&CSetCamera::new(player.entity_id().into()))
+                .send_client_packet(&CSetCamera::new(player.entity_id().into()))
                 .await;
         }
 

crates/pumpkin/src/net/java/play/player_position.rs

@@ -334,7 +334,7 @@ impl JavaClient {
     pub async fn force_tp(&self, player: &Arc<Player>, position: Vector3<f64>) {
         let teleport_id = player.teleport_id_count.fetch_add(1, Ordering::Relaxed) + 1;
         *player.awaiting_teleport.lock().await = Some((teleport_id.into(), position));
-        self.enqueue_packet(&CPlayerPosition::new(
+        self.enqueue_client_packet(&CPlayerPosition::new(
             teleport_id.into(),
             player.get_entity().pos.load(),
             Vector3::new(0.0, 0.0, 0.0),

crates/pumpkin/src/net/java/play/set_held_item.rs

@@ -24,8 +24,7 @@ impl JavaClient {
         server.plugin_manager.fire(server, &mut event).await;
         if event.cancelled {
             player
-                .client
-                .enqueue_packet(&CSetSelectedSlot::new(previous_slot as i8))
+                .send_client_packet(&CSetSelectedSlot::new(previous_slot as i8))
                 .await;
             return;
         }

crates/pumpkin/src/net/java/play/spectate_entity.rs

@@ -28,8 +28,7 @@ impl JavaClient {
 
             player.camera_target_id.store(Some(target_id));
             player
-                .client
-                .send_packet_now(&CSetCamera::new(target_id.into()))
+                .send_client_packet(&CSetCamera::new(target_id.into()))
                 .await;
 
             player
@@ -43,8 +42,7 @@ impl JavaClient {
 
             player.camera_target_id.store(Some(target_id));
             player
-                .client
-                .send_packet_now(&CSetCamera::new(target_id.into()))
+                .send_client_packet(&CSetCamera::new(target_id.into()))
                 .await;
 
             player

crates/pumpkin/src/net/java/play/tag_query.rs

@@ -17,7 +17,7 @@ impl JavaClient {
 
         // Empty NBT compound (TAG_End = 0)
         let empty_nbt = [0u8];
-        self.send_packet_now(&CTagQueryResponse::new(packet.transaction_id, &empty_nbt))
+        self.send_packet(&CTagQueryResponse::new(packet.transaction_id, &empty_nbt))
             .await;
     }
 
@@ -28,7 +28,7 @@ impl JavaClient {
 
         // Empty NBT compound (TAG_End = 0)
         let empty_nbt = [0u8];
-        self.send_packet_now(&CTagQueryResponse::new(packet.transaction_id, &empty_nbt))
+        self.send_packet(&CTagQueryResponse::new(packet.transaction_id, &empty_nbt))
             .await;
     }
 }

crates/pumpkin/src/net/java/play/teleport_to_entity.rs

@@ -25,8 +25,7 @@ impl JavaClient {
             let target_id = target_player.living_entity.entity.entity_id;
             player.camera_target_id.store(Some(target_id));
             player
-                .client
-                .send_packet_now(&CSetCamera::new(target_id.into()))
+                .send_client_packet(&CSetCamera::new(target_id.into()))
                 .await;
 
             player

crates/pumpkin/src/net/java/play/use_item_on.rs

@@ -66,7 +66,7 @@ impl JavaClient {
             event;
             'cancelled: {
                 let state_id = world.get_block_state_id(&position);
-                self.enqueue_packet(&CBlockUpdate::new(
+                self.enqueue_client_packet(&CBlockUpdate::new(
                     position,
                     VarInt(i32::from(state_id.as_u16())),
                 ))
@@ -237,7 +237,7 @@ impl JavaClient {
             .await
         {
             Ok(Some((final_block_pos, new_state))) => {
-                self.send_packet_now(&CBlockUpdate::new(
+                self.send_packet(&CBlockUpdate::new(
                     final_block_pos,
                     VarInt(i32::from(new_state.as_u16())),
                 ))
@@ -256,7 +256,7 @@ impl JavaClient {
 
     /// Checks if the block placed was a sign, then opens a dialog.
     pub async fn send_sign_packet(&self, block_position: BlockPos, is_front_text: bool) {
-        self.enqueue_packet(&COpenSignEditor::new(block_position, is_front_text))
+        self.enqueue_client_packet(&COpenSignEditor::new(block_position, is_front_text))
             .await;
     }
 }

crates/pumpkin/src/net/mod.rs

@@ -30,6 +30,8 @@ pub mod authentication;
 pub mod bedrock;
 pub mod java;
 pub mod lan_broadcast;
+pub mod packet_limiter;
+pub use packet_limiter::PacketRateLimiter;
 mod proxy;
 pub mod query;
 pub mod rcon;
@@ -202,8 +204,16 @@ impl ClientPlatform {
         be_packet: &B,
     ) {
         match self {
-            Self::Java(java) => java.enqueue_packet(je_packet).await,
-            Self::Bedrock(bedrock) => bedrock.enqueue_packet(be_packet).await,
+            Self::Java(java) => {
+                if let Ok(data) = java.serialize_packet(je_packet) {
+                    java.enqueue_packet(data).await;
+                }
+            }
+            Self::Bedrock(bedrock) => {
+                if let Ok(data) = bedrock.serialize_packet(be_packet) {
+                    bedrock.enqueue_packet(data).await;
+                }
+            }
         }
     }
 
@@ -213,38 +223,41 @@ impl ClientPlatform {
         be_packet: &B,
     ) {
         match self {
-            Self::Java(java) => java.try_enqueue_packet(je_packet),
-            Self::Bedrock(bedrock) => bedrock.try_enqueue_packet(be_packet),
+            Self::Java(java) => {
+                if let Ok(data) = java.serialize_packet(je_packet) {
+                    java.try_enqueue_packet(data);
+                }
+            }
+            Self::Bedrock(bedrock) => {
+                if let Ok(data) = bedrock.serialize_packet(be_packet) {
+                    bedrock.try_enqueue_packet(data);
+                }
+            }
         }
     }
 
-    pub async fn enqueue_packet<P: ClientPacket>(&self, packet: &P) {
-        if let Self::Java(java) = self {
-            java.enqueue_packet(packet).await;
+    pub async fn enqueue_packet(&self, packet_data: Bytes) {
+        match self {
+            Self::Java(java) => java.enqueue_packet(packet_data).await,
+            Self::Bedrock(bedrock) => bedrock.enqueue_packet(packet_data).await,
         }
     }
 
-    pub async fn enqueue_be_packet<P: BClientPacket>(&self, packet: &P) {
-        if let Self::Bedrock(bedrock) = self {
-            bedrock.enqueue_packet(packet).await;
-        }
-    }
-
-    pub fn try_enqueue_packet<P: ClientPacket>(&self, packet: &P) {
-        if let Self::Java(java) = self {
-            java.try_enqueue_packet(packet);
-        }
-    }
-
-    pub fn try_enqueue_be_packet<P: BClientPacket>(&self, packet: &P) {
-        if let Self::Bedrock(bedrock) = self {
-            bedrock.try_enqueue_packet(packet);
+    pub fn try_enqueue_packet(&self, packet_data: Bytes) {
+        match self {
+            Self::Java(java) => java.try_enqueue_packet(packet_data),
+            Self::Bedrock(bedrock) => bedrock.try_enqueue_packet(packet_data),
         }
     }
 
     pub fn try_enqueue_spawn_packet(&self, entity: &Arc<dyn crate::entity::EntityBase>) {
         match self {
-            Self::Java(java) => java.try_enqueue_packet(&entity.get_entity().create_spawn_packet()),
+            Self::Java(java) => {
+                let packet = entity.get_entity().create_spawn_packet();
+                if let Ok(data) = java.serialize_packet(&packet) {
+                    java.try_enqueue_packet(data);
+                }
+            }
             Self::Bedrock(bedrock) => bedrock.enqueue_spawn_packet(entity.clone()),
         }
     }
@@ -263,15 +276,10 @@ impl ClientPlatform {
         }
     }
 
-    pub async fn send_packet_now<P: ClientPacket>(&self, packet: &P) {
-        if let Self::Java(java) = self {
-            java.send_packet_now(packet).await;
-        }
-    }
-
-    pub async fn send_be_packet_now<P: BClientPacket>(&self, packet: &P) {
-        if let Self::Bedrock(bedrock) = self {
-            bedrock.send_game_packet(packet).await;
+    pub async fn send_packet_now(&self, packet_data: Bytes) {
+        match self {
+            Self::Java(java) => java.send_packet_now(packet_data).await,
+            Self::Bedrock(bedrock) => bedrock.send_game_packet(packet_data).await,
         }
     }
 
@@ -281,16 +289,21 @@ impl ClientPlatform {
         be_packet: &B,
     ) {
         match self {
-            Self::Java(java) => java.send_packet_now(je_packet).await,
-            Self::Bedrock(bedrock) => bedrock.send_game_packet(be_packet).await,
+            Self::Java(java) => {
+                if let Ok(data) = java.serialize_packet(je_packet) {
+                    java.send_packet_now(data).await;
+                }
+            }
+            Self::Bedrock(bedrock) => {
+                if let Ok(data) = bedrock.serialize_packet(be_packet) {
+                    bedrock.send_game_packet(data).await;
+                }
+            }
         }
     }
 
     pub async fn send_packet_now_data(&self, data: Bytes) {
-        match self {
-            Self::Java(java) => java.send_packet_now_data(data).await,
-            Self::Bedrock(bedrock) => bedrock.enqueue_packet_data(data).await,
-        }
+        self.send_packet_now(data).await;
     }
 
     pub async fn kick(&self, reason: DisconnectReason, message: TextComponent) {

crates/pumpkin/src/net/packet_limiter.rs

@@ -0,0 +1,111 @@
+use std::sync::Mutex;
+use std::time::Instant;
+
+use pumpkin_config::PacketLimiterConfig;
+
+#[derive(Debug)]
+struct LimiterState {
+    tokens: f64,
+    last_update: Instant,
+}
+
+/// Token bucket based rate limiter for incoming client packets.
+#[derive(Debug)]
+pub struct PacketRateLimiter {
+    enabled: bool,
+    max_rate: f64,
+    burst_capacity: f64,
+    state: Mutex<LimiterState>,
+}
+
+impl PacketRateLimiter {
+    #[must_use]
+    pub fn new(enabled: bool, max_rate: f64, burst_capacity: f64) -> Self {
+        Self {
+            enabled,
+            max_rate,
+            burst_capacity,
+            state: Mutex::new(LimiterState {
+                tokens: burst_capacity,
+                last_update: Instant::now(),
+            }),
+        }
+    }
+
+    #[must_use]
+    pub fn from_config(config: &PacketLimiterConfig) -> Self {
+        Self::new(
+            config.enabled,
+            config.max_packet_rate,
+            config.burst_capacity,
+        )
+    }
+
+    /// Checks whether an incoming packet is allowed under the rate limit.
+    ///
+    /// Returns `true` if the packet is within limits, or `false` if the rate limit is exceeded.
+    #[must_use]
+    pub fn check_packet(&self) -> bool {
+        if !self.enabled || self.max_rate <= 0.0 {
+            return true;
+        }
+
+        let now = Instant::now();
+        let mut state = self
+            .state
+            .lock()
+            .unwrap_or_else(std::sync::PoisonError::into_inner);
+        let elapsed = now.duration_since(state.last_update).as_secs_f64();
+        state.last_update = now;
+
+        state.tokens = (state.tokens + elapsed * self.max_rate).min(self.burst_capacity);
+
+        if state.tokens >= 1.0 {
+            state.tokens -= 1.0;
+            true
+        } else {
+            false
+        }
+    }
+
+    #[must_use]
+    pub const fn max_rate(&self) -> f64 {
+        self.max_rate
+    }
+
+    #[must_use]
+    pub const fn is_enabled(&self) -> bool {
+        self.enabled
+    }
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+
+    #[test]
+    fn limiter_allows_packets_within_capacity() {
+        let limiter = PacketRateLimiter::new(true, 10.0, 5.0);
+        for _ in 0..5 {
+            assert!(limiter.check_packet());
+        }
+        // Burst exhausted
+        assert!(!limiter.check_packet());
+    }
+
+    #[test]
+    fn limiter_disabled() {
+        let limiter = PacketRateLimiter::new(false, 10.0, 1.0);
+        for _ in 0..100 {
+            assert!(limiter.check_packet());
+        }
+    }
+
+    #[test]
+    fn limiter_zero_rate() {
+        let limiter = PacketRateLimiter::new(true, 0.0, 1.0);
+        for _ in 0..100 {
+            assert!(limiter.check_packet());
+        }
+    }
+}

crates/pumpkin/src/plugin/loader/wasm/wasm_host/wit/v0_1/player.rs

@@ -1113,7 +1113,7 @@ impl pumpkin::plugin::player::HostPlayer for PluginHostState {
         // Sync to client
         let stack_serializer = ItemStackSerializer::from(stack);
         let packet = CSetContainerSlot::new(0, 0, slot as i16, &stack_serializer);
-        player.client.enqueue_packet(&packet).await;
+        player.send_client_packet(&packet).await;
 
         Ok(())
     }
@@ -1139,7 +1139,7 @@ impl pumpkin::plugin::player::HostPlayer for PluginHostState {
         // Sync to client
         let stack_serializer = ItemStackSerializer::from(stack);
         let packet = CSetContainerSlot::new(0, 0, slot as i16, &stack_serializer);
-        player.client.enqueue_packet(&packet).await;
+        player.send_client_packet(&packet).await;
 
         Ok(())
     }
@@ -1204,7 +1204,7 @@ impl pumpkin::plugin::player::HostPlayer for PluginHostState {
             let sync_id = handler.sync_id();
             let stack_serializer = ItemStackSerializer::from(stack);
             let packet = CSetContainerSlot::new(sync_id as i8, 0, slot as i16, &stack_serializer);
-            player.client.enqueue_packet(&packet).await;
+            player.send_client_packet(&packet).await;
         }
 
         Ok(())
@@ -1229,7 +1229,7 @@ impl pumpkin::plugin::player::HostPlayer for PluginHostState {
             for slot in 0..27 {
                 let packet =
                     CSetContainerSlot::new(sync_id as i8, 0, slot as i16, &empty_serializer);
-                player.client.enqueue_packet(&packet).await;
+                player.send_client_packet(&packet).await;
             }
         }
 
@@ -2215,7 +2215,7 @@ impl pumpkin::plugin::player::HostPlayer for PluginHostState {
         let player = player_from_resource(self, &player)?;
         if let crate::net::ClientPlatform::Java(client) = player.client.as_ref() {
             client
-                .send_packet_now(&pumpkin_protocol::java::client::play::CTransfer::new(
+                .send_packet(&pumpkin_protocol::java::client::play::CTransfer::new(
                     &host,
                     pumpkin_protocol::codec::var_int::VarInt(i32::from(port)),
                 ))
@@ -2946,8 +2946,7 @@ impl pumpkin::plugin::player::HostJavaPlayer for PluginHostState {
 
         if let crate::net::ClientPlatform::Java(_) = player.client.as_ref() {
             player
-                .client
-                .send_packet_now(&pumpkin_protocol::java::client::play::CCustomPayload::new(
+                .send_client_packet(&pumpkin_protocol::java::client::play::CCustomPayload::new(
                     &channel, &data,
                 ))
                 .await;
@@ -3098,7 +3097,7 @@ impl pumpkin::plugin::player::HostJavaPlayer for PluginHostState {
             match client.connection_state.load() {
                 pumpkin_protocol::ConnectionState::Config => {
                     client
-                        .send_packet_now(
+                        .send_packet(
                             &pumpkin_protocol::java::client::config::CConfigShowDialog::new(
                                 pumpkin_protocol::IdOr::Value(DialogNBT::from_dialog(
                                     &protocol_dialog,
@@ -3109,13 +3108,9 @@ impl pumpkin::plugin::player::HostJavaPlayer for PluginHostState {
                 }
                 pumpkin_protocol::ConnectionState::Play => {
                     client
-                        .send_packet_now(
-                            &pumpkin_protocol::java::client::play::CPlayShowDialog::new(
-                                pumpkin_protocol::IdOr::Value(DialogNBT::from_dialog(
-                                    &protocol_dialog,
-                                )),
-                            ),
-                        )
+                        .send_packet(&pumpkin_protocol::java::client::play::CPlayShowDialog::new(
+                            pumpkin_protocol::IdOr::Value(DialogNBT::from_dialog(&protocol_dialog)),
+                        ))
                         .await;
                 }
                 _ => {}
@@ -3142,16 +3137,14 @@ impl pumpkin::plugin::player::HostJavaPlayer for PluginHostState {
             match client.connection_state.load() {
                 pumpkin_protocol::ConnectionState::Config => {
                     client
-                        .send_packet_now(
+                        .send_packet(
                             &pumpkin_protocol::java::client::config::CConfigClearDialog::new(),
                         )
                         .await;
                 }
                 pumpkin_protocol::ConnectionState::Play => {
                     client
-                        .send_packet_now(
-                            &pumpkin_protocol::java::client::play::CPlayClearDialog::new(),
-                        )
+                        .send_packet(&pumpkin_protocol::java::client::play::CPlayClearDialog::new())
                         .await;
                 }
                 _ => {}
@@ -3216,7 +3209,7 @@ impl pumpkin::plugin::player::HostJavaPlayer for PluginHostState {
 
         if let crate::net::ClientPlatform::Java(client) = player.client.as_ref() {
             client
-                .send_packet_now(
+                .send_packet(
                     &pumpkin_protocol::java::client::play::CAddResourcePack::new(
                         &uuid,
                         &pack.url,
@@ -3248,7 +3241,7 @@ impl pumpkin::plugin::player::HostJavaPlayer for PluginHostState {
 
         if let crate::net::ClientPlatform::Java(client) = player.client.as_ref() {
             client
-                .send_packet_now(
+                .send_packet(
                     &pumpkin_protocol::java::client::play::CRemoveResourcePack::new(Some(&uuid)),
                 )
                 .await;
@@ -3271,9 +3264,7 @@ impl pumpkin::plugin::player::HostJavaPlayer for PluginHostState {
 
         if let crate::net::ClientPlatform::Java(client) = player.client.as_ref() {
             client
-                .send_packet_now(
-                    &pumpkin_protocol::java::client::play::CRemoveResourcePack::new(None),
-                )
+                .send_packet(&pumpkin_protocol::java::client::play::CRemoveResourcePack::new(None))
                 .await;
         }
         Ok(())
@@ -3554,7 +3545,7 @@ impl pumpkin::plugin::player::HostBedrockPlayer for PluginHostState {
         };
 
         if let crate::net::ClientPlatform::Bedrock(client) = player.client.as_ref() {
-            client.send_game_packet(&packet).await;
+            client.send_packet(&packet).await;
         }
 
         Ok(())
@@ -3658,7 +3649,7 @@ impl pumpkin::plugin::player::HostBedrockPlayer for PluginHostState {
             };
 
             client
-                .send_game_packet(&CModalFormRequest {
+                .send_packet(&CModalFormRequest {
                     form_id: pumpkin_protocol::codec::var_uint::VarUInt(form_id),
                     form_data: form_json.to_string(),
                 })
@@ -3750,7 +3741,7 @@ impl pumpkin::plugin::player::HostBedrockPlayer for PluginHostState {
                     resource_packs: entries,
                 };
 
-            client.send_game_packet(&packs_info).await;
+            client.send_packet(&packs_info).await;
         }
         Ok(())
     }

crates/pumpkin/src/server/mod.rs

@@ -741,8 +741,8 @@ impl Server {
             for player in world.players.load().iter() {
                 *player.tab_list_header.lock().await = header.clone();
                 *player.tab_list_footer.lock().await = footer.clone();
-                player.client.enqueue_packet(&packet).await;
             }
+            world.broadcast_packet_all(&packet);
         }
     }
 
@@ -1063,13 +1063,15 @@ impl Server {
             pumpkin_protocol::codec::var_int::VarInt(0),
         );
         for world in self.worlds.load().iter() {
-            for player in world.players.load().iter() {
-                if player.subscribed_debug_sample.load(Ordering::Relaxed)
-                    && player.permission_lvl.load() >= pumpkin_util::PermissionLvl::Two
-                {
-                    player.client.try_enqueue_packet(&packet);
-                }
-            }
+            let players = world.players.load();
+            let recipients = players
+                .iter()
+                .filter(|player| {
+                    player.subscribed_debug_sample.load(Ordering::Relaxed)
+                        && player.permission_lvl.load() >= pumpkin_util::PermissionLvl::Two
+                })
+                .filter_map(|player| player.client.java());
+            World::broadcast_java_clients(&packet, recipients);
         }
     }
 

crates/pumpkin/src/server/tick_rate_manager.rs

@@ -211,12 +211,10 @@ impl ServerTickRateManager {
     pub async fn update_joining_player(&self, player: &Player) {
         if player.client.java_version() >= pumpkin_util::version::JavaMinecraftVersion::V_1_20_3 {
             player
-                .client
-                .send_packet_now(&CTickingState::new(self.tickrate(), self.is_frozen()))
+                .send_client_packet(&CTickingState::new(self.tickrate(), self.is_frozen()))
                 .await;
             player
-                .client
-                .send_packet_now(&CTickingStep::new(
+                .send_client_packet(&CTickingStep::new(
                     self.frozen_ticks_to_run.load(Ordering::Relaxed).into(),
                 ))
                 .await;

crates/pumpkin/src/server/ticker.rs

@@ -62,6 +62,9 @@ impl Ticker {
 
             next_tick += tick_interval;
 
+            // Explicitly yield to tokio to allow pending network packets / I/O tasks to be processed
+            tokio::task::yield_now().await;
+
             tokio::select! {
                 () = sleep_until(next_tick) => {},
                 () = STOP_INTERRUPT.cancelled() => {
@@ -69,9 +72,11 @@ impl Ticker {
                 }
             }
 
-            // Death Spiral Prevention
+            // Death Spiral Prevention / Catch-up Clamping
+            // If the server fell behind the scheduled tick, clamp next_tick to now
+            // so we don't run a burst of back-to-back ticks with zero sleep.
             let now = Instant::now();
-            if now.saturating_duration_since(next_tick) > Duration::from_secs(5) {
+            if now > next_tick {
                 next_tick = now;
             }
         }

crates/pumpkin/src/world/border.rs

@@ -46,7 +46,7 @@ impl Worldborder {
 
     pub async fn init_client(&self, client: &JavaClient) {
         client
-            .enqueue_packet(&CInitializeWorldBorder::new(
+            .enqueue_client_packet(&CInitializeWorldBorder::new(
                 self.center_x,
                 self.center_z,
                 self.old_diameter,

crates/pumpkin/src/world/bossbar.rs

@@ -105,7 +105,7 @@ impl Player {
                 };
 
                 let packet = CBossEvent::new(&bossbar.uuid, boss_action);
-                java.enqueue_packet(&packet).await;
+                java.enqueue_client_packet(&packet).await;
             }
             ClientPlatform::Bedrock(bedrock) => {
                 let packet = BBossEvent {
@@ -117,7 +117,7 @@ impl Player {
                         overlay: bossbar.division.to_bedrock(),
                     },
                 };
-                bedrock.send_game_packet(&packet).await;
+                bedrock.send_packet(&packet).await;
             }
         }
     }
@@ -128,14 +128,14 @@ impl Player {
                 let boss_action = BosseventAction::Remove;
 
                 let packet = CBossEvent::new(&uuid, boss_action);
-                java.enqueue_packet(&packet).await;
+                java.enqueue_client_packet(&packet).await;
             }
             ClientPlatform::Bedrock(bedrock) => {
                 let packet = BBossEvent {
                     boss_entity_id: VarLong(uuid.as_u128() as i64),
                     action: BossEventAction::Remove,
                 };
-                bedrock.send_game_packet(&packet).await;
+                bedrock.send_packet(&packet).await;
             }
         }
     }
@@ -146,14 +146,14 @@ impl Player {
                 let boss_action = BosseventAction::UpdateHealth(health);
 
                 let packet = CBossEvent::new(uuid, boss_action);
-                java.enqueue_packet(&packet).await;
+                java.enqueue_client_packet(&packet).await;
             }
             ClientPlatform::Bedrock(bedrock) => {
                 let packet = BBossEvent {
                     boss_entity_id: VarLong(uuid.as_u128() as i64),
                     action: BossEventAction::UpdateHealth(health),
                 };
-                bedrock.send_game_packet(&packet).await;
+                bedrock.send_packet(&packet).await;
             }
         }
     }
@@ -164,14 +164,14 @@ impl Player {
                 let boss_action = BosseventAction::UpdateTile(title);
 
                 let packet = CBossEvent::new(uuid, boss_action);
-                java.enqueue_packet(&packet).await;
+                java.enqueue_client_packet(&packet).await;
             }
             ClientPlatform::Bedrock(bedrock) => {
                 let packet = BBossEvent {
                     boss_entity_id: VarLong(uuid.as_u128() as i64),
                     action: BossEventAction::UpdateTitle(title.get_text()),
                 };
-                bedrock.send_game_packet(&packet).await;
+                bedrock.send_packet(&packet).await;
             }
         }
     }
@@ -191,7 +191,7 @@ impl Player {
                 };
 
                 let packet = CBossEvent::new(uuid, boss_action);
-                java.enqueue_packet(&packet).await;
+                java.enqueue_client_packet(&packet).await;
             }
             ClientPlatform::Bedrock(bedrock) => {
                 let packet = BBossEvent {
@@ -201,7 +201,7 @@ impl Player {
                         overlay: dividers.to_bedrock(),
                     },
                 };
-                bedrock.send_game_packet(&packet).await;
+                bedrock.send_packet(&packet).await;
             }
         }
     }
@@ -212,7 +212,7 @@ impl Player {
                 let boss_action = BosseventAction::UpdateFlags(flags.bits());
 
                 let packet = CBossEvent::new(uuid, boss_action);
-                java.enqueue_packet(&packet).await;
+                java.enqueue_client_packet(&packet).await;
             }
             ClientPlatform::Bedrock(bedrock) => {
                 // For Bedrock, flags are part of properties (screen darken)
@@ -227,7 +227,7 @@ impl Player {
                         overlay: VarInt(0),
                     },
                 };
-                bedrock.send_game_packet(&packet).await;
+                bedrock.send_packet(&packet).await;
             }
         }
     }

crates/pumpkin/src/world/chunker.rs

@@ -60,7 +60,7 @@ pub async fn update_position(player: &Arc<Player>) {
     match player.client.as_ref() {
         ClientPlatform::Java(java_client) => {
             java_client
-                .send_packet_now(&CCenterChunk {
+                .send_packet(&CCenterChunk {
                     chunk_x: new_chunk_center.x.into(),
                     chunk_z: new_chunk_center.y.into(),
                 })
@@ -68,7 +68,7 @@ pub async fn update_position(player: &Arc<Player>) {
         }
         ClientPlatform::Bedrock(bedrock_client) => {
             bedrock_client
-                .send_game_packet(&CNetworkChunkPublisherUpdate::new(
+                .send_packet(&CNetworkChunkPublisherUpdate::new(
                     player.get_entity().block_pos.load(),
                     u32::from(view_distance.get()) * 16,
                 ))
@@ -100,7 +100,7 @@ pub async fn update_position(player: &Arc<Player>) {
     if let ClientPlatform::Java(client) = player.client.as_ref() {
         for chunk in &unloading_chunks {
             client
-                .enqueue_packet(&CUnloadChunk::new(chunk.x, chunk.y))
+                .enqueue_client_packet(&CUnloadChunk::new(chunk.x, chunk.y))
                 .await;
         }
     }

crates/pumpkin/src/world/portal/mod.rs

@@ -137,7 +137,7 @@ impl PortalType {
                             match player.client.as_ref() {
                                 crate::net::ClientPlatform::Java(client) => {
                                     client
-                                        .enqueue_packet(&pumpkin_protocol::java::client::play::CGameEvent::new(
+                                        .enqueue_client_packet(&pumpkin_protocol::java::client::play::CGameEvent::new(
                                             pumpkin_protocol::java::client::play::GameEvent::WinGame,
                                             1.0,
                                         ))
@@ -145,7 +145,7 @@ impl PortalType {
                                 }
                                 crate::net::ClientPlatform::Bedrock(client) => {
                                     client
-                                        .send_game_packet(
+                                        .send_packet(
                                             &pumpkin_protocol::bedrock::client::CShowCredits::new(
                                                 pumpkin_protocol::codec::var_ulong::VarULong(
                                                     caller.get_entity().entity_id as u64,