Update status schema to string for >=1.20.4

thx lahvuun -- https://github.com/timvisee/lazymc/issues/57#issuecomment-1858879744

protocol/src/data/server_status.rs

@@ -7,7 +7,8 @@ use uuid::Uuid;
 pub struct ServerStatus {
     pub version: ServerVersion,
     pub players: OnlinePlayers,
-    pub description: Message,
+    pub description: String,
+    pub favicon: Option<String>,
 }
 
 #[derive(Clone, Serialize, Deserialize, Debug)]

protocol/src/decoder.rs

@@ -222,6 +222,41 @@ impl Decoder for Vec<CompoundTag> {
     }
 }
 
+// TODO(timvisee): identifier decoder, we might want a custom type
+impl Decoder for Vec<String> {
+    type Output = Self;
+
+    fn decode<R: Read>(reader: &mut R) -> Result<Self::Output, DecodeError> {
+        let length = reader.read_var_i32()? as usize;
+        let mut vec = Vec::with_capacity(length);
+
+        for _ in 0..length {
+            let identifier = reader.read_string(32767)?;
+            vec.push(identifier);
+        }
+
+        Ok(vec)
+    }
+}
+
+// TODO(timvisee): forge mod channel decoder, we might want a custom type
+impl Decoder for Vec<(String, String)> {
+    type Output = Self;
+
+    fn decode<R: Read>(reader: &mut R) -> Result<Self::Output, DecodeError> {
+        let length = reader.read_var_i32()? as usize;
+        let mut vec = Vec::with_capacity(length);
+
+        for _ in 0..length {
+            let a = reader.read_string(32767)?;
+            let b = reader.read_string(32767)?;
+            vec.push((a, b));
+        }
+
+        Ok(vec)
+    }
+}
+
 pub mod var_int {
     use crate::decoder::DecoderReadExt;
     use crate::error::DecodeError;
@@ -261,8 +296,17 @@ pub mod uuid_hyp_str {
     use uuid::Uuid;
 
     pub fn decode<R: Read>(reader: &mut R) -> Result<Uuid, DecodeError> {
-        let uuid_hyphenated_string = reader.read_string(36)?;
-        let uuid = Uuid::parse_str(&uuid_hyphenated_string)?;
+        // TODO(timvisee): use custom encoder for this, rather than putting this in uuid_hyp_str
+
+        let data = [reader.read_var_i64()?, reader.read_var_i64()?];
+
+        // TODO(timvisee): remove unsafe
+        let raw = unsafe { std::mem::transmute(data) };
+
+        let uuid = Uuid::from_bytes(raw);
+
+        // let uuid_hyphenated_string = reader.read_string(36)?;
+        // let uuid = Uuid::parse_str(&uuid_hyphenated_string)?;
 
         Ok(uuid)
     }

protocol/src/encoder.rs

@@ -183,6 +183,33 @@ impl Encoder for Vec<CompoundTag> {
     }
 }
 
+// TODO(timvisee): identifier encoder, we might want a custom type
+impl Encoder for Vec<String> {
+    fn encode<W: Write>(&self, writer: &mut W) -> Result<(), EncodeError> {
+        writer.write_var_i32(self.len() as i32)?;
+
+        for s in self {
+            writer.write_string(&s, 32767)?;
+        }
+
+        Ok(())
+    }
+}
+
+// TODO(timvisee): forge mod channel encoder, we might want a custom type
+impl Encoder for Vec<(String, String)> {
+    fn encode<W: Write>(&self, writer: &mut W) -> Result<(), EncodeError> {
+        writer.write_var_i32(self.len() as i32)?;
+
+        for (a, b) in self {
+            writer.write_string(&a, 32767)?;
+            writer.write_string(&b, 32767)?;
+        }
+
+        Ok(())
+    }
+}
+
 pub mod var_int {
     use crate::encoder::EncoderWriteExt;
     use crate::error::EncodeError;
@@ -222,11 +249,19 @@ pub mod uuid_hyp_str {
     use crate::encoder::EncoderWriteExt;
     use crate::error::EncodeError;
     use std::io::Write;
-    use uuid::Uuid;
+    use uuid::{Uuid, Version};
 
     pub fn encode<W: Write>(value: &Uuid, writer: &mut W) -> Result<(), EncodeError> {
-        let uuid_hyphenated_string = value.to_hyphenated().to_string();
-        writer.write_string(&uuid_hyphenated_string, 36)?;
+        // TODO(timvisee): use custom encoder for this, rather than putting this in uuid_hyp_str
+        match value.get_version() {
+            Some(Version::Md5) => {
+                writer.write_all(value.as_bytes())?;
+            }
+            _ => {
+                let uuid_hyphenated_string = value.to_hyphenated().to_string();
+                writer.write_string(&uuid_hyphenated_string, 36)?;
+            }
+        }
 
         Ok(())
     }

protocol/src/version/forge_v1_13/login.rs

@@ -0,0 +1,62 @@
+use crate::{set_packet_id, version::PacketId};
+use minecraft_protocol_derive::Decoder;
+use minecraft_protocol_derive::Encoder;
+
+set_packet_id!(ModList, 1);
+set_packet_id!(ModListReply, 2);
+set_packet_id!(ServerRegistry, 3);
+set_packet_id!(ConfigurationData, 4);
+set_packet_id!(Acknowledgement, 99);
+
+#[derive(Encoder, Decoder, Debug)]
+pub struct LoginWrapper {
+    pub channel: String,
+    pub packet: Vec<u8>,
+}
+
+#[derive(Encoder, Decoder, Debug)]
+pub struct ModList {
+    pub mod_names: Vec<String>,
+    pub channels: Vec<(String, String)>,
+    pub registries: Vec<String>,
+}
+
+impl ModList {
+    /// Transform this into a `ModListReply` with empty registry markers.
+    pub fn into_reply(self) -> ModListReply {
+        ModListReply {
+            mod_names: self.mod_names,
+            channels: self.channels,
+            registries: self
+                .registries
+                .into_iter()
+                .map(|r| (r, "".into()))
+                .collect(),
+        }
+    }
+}
+
+#[derive(Encoder, Decoder, Debug)]
+pub struct ModListReply {
+    pub mod_names: Vec<String>,
+    pub channels: Vec<(String, String)>,
+    pub registries: Vec<(String, String)>,
+}
+
+#[derive(Encoder, Decoder, Debug)]
+pub struct ServerRegistry {
+    pub registry_name: String,
+    pub snapshot_present: bool,
+    // TODO: implement this snapshot type!
+    // TODO: add dummy data here, 5x 0 ?
+    pub snapshot: Vec<u8>,
+}
+
+#[derive(Encoder, Decoder, Debug)]
+pub struct ConfigurationData {
+    pub file_name: String,
+    pub data: Vec<u8>,
+}
+
+#[derive(Encoder, Decoder, Debug)]
+pub struct Acknowledgement {}

protocol/src/version/forge_v1_13/mod.rs

@@ -0,0 +1 @@
+pub mod login;

protocol/src/version/mod.rs

@@ -1 +1,27 @@
+pub mod forge_v1_13;
 pub mod v1_14_4;
+pub mod v1_16_3;
+pub mod v1_16_4;
+pub mod v1_17;
+pub mod v1_17_1;
+
+/// Trait to obtain packet ID from packet data.
+pub trait PacketId {
+    /// Get protcol packet ID.
+    fn packet_id(&self) -> u8;
+}
+
+#[macro_export]
+macro_rules! set_packet_id (
+    ($type: ident, $id: expr) => (
+        impl $type {
+            pub const PACKET_ID: u8 = $id;
+        }
+
+        impl PacketId for $type {
+            fn packet_id(&self) -> u8 {
+                Self::PACKET_ID
+            }
+        }
+    )
+);

protocol/src/version/v1_14_4/game.rs

@@ -3,12 +3,25 @@ use crate::decoder::Decoder;
 use crate::decoder::DecoderReadExt;
 use crate::encoder::EncoderWriteExt;
 use crate::error::DecodeError;
+use crate::{set_packet_id, version::PacketId};
 use byteorder::{ReadBytesExt, WriteBytesExt};
 use minecraft_protocol_derive::{Decoder, Encoder};
 use nbt::CompoundTag;
 use std::io::Read;
 use uuid::Uuid;
 
+set_packet_id!(ServerBoundChatMessage, 0x03);
+set_packet_id!(ServerBoundKeepAlive, 0x0F);
+set_packet_id!(ServerBoundAbilities, 0x19);
+
+set_packet_id!(ClientBoundChatMessage, 0x0F);
+set_packet_id!(GameDisconnect, 0x1A);
+set_packet_id!(ClientBoundKeepAlive, 0x21);
+set_packet_id!(ChunkData, 0x21);
+set_packet_id!(JoinGame, 0x25);
+set_packet_id!(BossBar, 0x0D);
+set_packet_id!(EntityAction, 0x1B);
+
 pub enum GameServerBoundPacket {
     ServerBoundChatMessage(ServerBoundChatMessage),
     ServerBoundKeepAlive(ServerBoundKeepAlive),
@@ -54,11 +67,11 @@ impl GameServerBoundPacket {
 impl GameClientBoundPacket {
     pub fn get_type_id(&self) -> u8 {
         match self {
-            GameClientBoundPacket::ClientBoundChatMessage(_) => 0x0E,
+            GameClientBoundPacket::ClientBoundChatMessage(_) => 0x0F,
             GameClientBoundPacket::GameDisconnect(_) => 0x1A,
             GameClientBoundPacket::ClientBoundKeepAlive(_) => 0x20,
             GameClientBoundPacket::ChunkData(_) => 0x21,
-            GameClientBoundPacket::JoinGame(_) => 0x25,
+            GameClientBoundPacket::JoinGame(_) => 0x26,
             GameClientBoundPacket::BossBar(_) => 0x0D,
             GameClientBoundPacket::EntityAction(_) => 0x1B,
         }
@@ -190,7 +203,7 @@ impl ServerBoundKeepAlive {
     }
 }
 
-#[derive(Encoder, Decoder)]
+#[derive(Encoder, Decoder, Debug)]
 pub struct ClientBoundKeepAlive {
     pub id: u64,
 }

protocol/src/version/v1_14_4/handshake.rs

@@ -1,8 +1,11 @@
 use crate::decoder::Decoder;
 use crate::error::DecodeError;
+use crate::{set_packet_id, version::PacketId};
 use minecraft_protocol_derive::{Decoder, Encoder};
 use std::io::Read;
 
+set_packet_id!(Handshake, 0x00);
+
 pub enum HandshakeServerBoundPacket {
     Handshake(Handshake),
 }
@@ -25,7 +28,7 @@ impl HandshakeServerBoundPacket {
     }
 }
 
-#[derive(Encoder, Decoder, Debug)]
+#[derive(Clone, Encoder, Decoder, Debug)]
 pub struct Handshake {
     #[data_type(with = "var_int")]
     pub protocol_version: i32,

protocol/src/version/v1_14_4/login.rs

@@ -4,8 +4,19 @@ use uuid::Uuid;
 use crate::data::chat::Message;
 use crate::decoder::Decoder;
 use crate::error::DecodeError;
+use crate::{set_packet_id, version::PacketId};
 use minecraft_protocol_derive::{Decoder, Encoder};
 
+set_packet_id!(LoginStart, 0x00);
+set_packet_id!(EncryptionResponse, 0x01);
+set_packet_id!(LoginPluginResponse, 0x02);
+
+set_packet_id!(LoginDisconnect, 0x00);
+set_packet_id!(EncryptionRequest, 0x01);
+set_packet_id!(LoginSuccess, 0x02);
+set_packet_id!(SetCompression, 0x03);
+set_packet_id!(LoginPluginRequest, 0x04);
+
 pub enum LoginServerBoundPacket {
     LoginStart(LoginStart),
     EncryptionResponse(EncryptionResponse),

protocol/src/version/v1_14_4/mod.rs

@@ -1,4 +1,9 @@
+// Spec: https://wiki.vg/index.php?title=Protocol&oldid=15346
+
 pub mod game;
 pub mod handshake;
 pub mod login;
 pub mod status;
+
+/// Minecraft protocol version.
+pub const PROTOCOL: u32 = 498;

protocol/src/version/v1_14_4/status.rs

@@ -1,11 +1,18 @@
 use crate::data::server_status::*;
 use crate::decoder::Decoder;
 use crate::error::DecodeError;
+use crate::{set_packet_id, version::PacketId};
 use minecraft_protocol_derive::{Decoder, Encoder};
 use std::io::Read;
 
+set_packet_id!(StatusRequest, 0x00);
+set_packet_id!(PingRequest, 0x01);
+
+set_packet_id!(StatusResponse, 0x00);
+set_packet_id!(PingResponse, 0x01);
+
 pub enum StatusServerBoundPacket {
-    StatusRequest,
+    StatusRequest(StatusRequest),
     PingRequest(PingRequest),
 }
 
@@ -17,14 +24,14 @@ pub enum StatusClientBoundPacket {
 impl StatusServerBoundPacket {
     pub fn get_type_id(&self) -> u8 {
         match self {
-            StatusServerBoundPacket::StatusRequest => 0x00,
+            StatusServerBoundPacket::StatusRequest(_) => 0x00,
             StatusServerBoundPacket::PingRequest(_) => 0x01,
         }
     }
 
     pub fn decode<R: Read>(type_id: u8, reader: &mut R) -> Result<Self, DecodeError> {
         match type_id {
-            0x00 => Ok(StatusServerBoundPacket::StatusRequest),
+            0x00 => Ok(StatusServerBoundPacket::StatusRequest(StatusRequest {})),
             0x01 => {
                 let ping_request = PingRequest::decode(reader)?;
 
@@ -70,6 +77,15 @@ impl PingResponse {
     }
 }
 
+#[derive(Encoder, Decoder, Debug)]
+pub struct StatusRequest {}
+
+impl StatusRequest {
+    pub fn new() -> StatusServerBoundPacket {
+        StatusServerBoundPacket::StatusRequest(StatusRequest {})
+    }
+}
+
 #[derive(Encoder, Decoder, Debug)]
 pub struct StatusResponse {
     pub server_status: ServerStatus,

protocol/src/version/v1_16_3/game.rs

@@ -0,0 +1,139 @@
+use crate::data::chat::Message;
+use crate::error::DecodeError;
+use crate::{set_packet_id, version::PacketId};
+use byteorder::{ReadBytesExt, WriteBytesExt};
+use minecraft_protocol_derive::{Decoder, Encoder};
+use nbt::CompoundTag;
+
+set_packet_id!(ServerBoundPluginMessage, 0x0B);
+set_packet_id!(ServerBoundKeepAlive, 0x10);
+
+set_packet_id!(ClientBoundPluginMessage, 0x17);
+set_packet_id!(NamedSoundEffect, 0x18);
+set_packet_id!(JoinGame, 0x24);
+set_packet_id!(PlayerPositionAndLook, 0x34);
+set_packet_id!(Respawn, 0x39);
+set_packet_id!(TimeUpdate, 0x4E);
+set_packet_id!(Title, 0x4F);
+set_packet_id!(ClientBoundKeepAlive, 0x1F);
+
+#[derive(Encoder, Decoder, Debug)]
+pub struct ServerBoundPluginMessage {
+    #[data_type(max_length = 32767)]
+    pub channel: String,
+    pub data: Vec<u8>,
+}
+
+#[derive(Encoder, Decoder)]
+pub struct ServerBoundKeepAlive {
+    pub id: u64,
+}
+
+#[derive(Encoder, Decoder, Debug)]
+pub struct ClientBoundPluginMessage {
+    #[data_type(max_length = 32767)]
+    pub channel: String,
+    pub data: Vec<u8>,
+}
+
+// TODO(timvisee): remove clone?
+#[derive(Clone, Encoder, Decoder, Debug)]
+pub struct NamedSoundEffect {
+    #[data_type(max_length = 32767)]
+    pub sound_name: String,
+    #[data_type(with = "var_int")]
+    pub sound_category: i32,
+    // Mulitplied by 8
+    pub effect_pos_x: i32,
+    // Mulitplied by 8
+    pub effect_pos_y: i32,
+    // Mulitplied by 8
+    pub effect_pos_z: i32,
+    pub volume: f32,
+    pub pitch: f32,
+}
+
+// TODO(timvisee): remove clone?
+#[derive(Clone, Encoder, Decoder, Debug)]
+pub struct JoinGame {
+    pub entity_id: u32,
+    pub hardcore: bool,
+    pub game_mode: u8,
+    pub previous_game_mode: u8,
+    // TODO: max string length: 32767
+    pub world_names: Vec<String>,
+    pub dimension_codec: CompoundTag,
+    pub dimension: CompoundTag,
+    #[data_type(max_length = 32767)]
+    pub world_name: String,
+    pub hashed_seed: i64,
+    #[data_type(with = "var_int")]
+    pub max_players: i32,
+    #[data_type(with = "var_int")]
+    pub view_distance: i32,
+    pub reduced_debug_info: bool,
+    pub enable_respawn_screen: bool,
+    pub is_debug: bool,
+    pub is_flat: bool,
+}
+
+#[derive(Encoder, Decoder, Debug)]
+pub struct PlayerPositionAndLook {
+    pub x: f64,
+    pub y: f64,
+    pub z: f64,
+    pub yaw: f32,
+    pub pitch: f32,
+    pub flags: u8,
+    #[data_type(with = "var_int")]
+    pub teleport_id: i32,
+}
+
+#[derive(Encoder, Decoder, Debug)]
+pub struct Respawn {
+    pub dimension: CompoundTag,
+    #[data_type(max_length = 32767)]
+    pub world_name: String,
+    pub hashed_seed: i64,
+    pub game_mode: u8,
+    pub previous_game_mode: u8,
+    pub is_debug: bool,
+    pub is_flat: bool,
+    pub copy_metadata: bool,
+}
+
+#[derive(Encoder, Decoder, Debug)]
+pub struct TimeUpdate {
+    pub world_age: i64,
+    pub time_of_day: i64,
+}
+
+#[derive(Encoder, Decoder, Debug)]
+pub struct Title {
+    pub action: TitleAction,
+}
+
+#[derive(Encoder, Decoder, Debug)]
+pub enum TitleAction {
+    SetTitle {
+        text: Message,
+    },
+    SetSubtitle {
+        text: Message,
+    },
+    SetActionBar {
+        text: Message,
+    },
+    SetTimesAndDisplay {
+        fade_in: i32,
+        stay: i32,
+        fade_out: i32,
+    },
+    Hide,
+    Reset,
+}
+
+#[derive(Encoder, Decoder, Debug)]
+pub struct ClientBoundKeepAlive {
+    pub id: u64,
+}

protocol/src/version/v1_16_3/mod.rs

@@ -0,0 +1,6 @@
+// Spec: https://wiki.vg/index.php?title=Protocol&oldid=16091
+
+pub mod game;
+
+/// Minecraft protocol version.
+pub const PROTOCOL: u32 = 753;

protocol/src/version/v1_16_4/game.rs

@@ -0,0 +1,6 @@
+// Re-export
+pub use crate::version::v1_16_3::game::{
+    ClientBoundKeepAlive, ClientBoundPluginMessage, JoinGame, NamedSoundEffect,
+    PlayerPositionAndLook, Respawn, ServerBoundKeepAlive, ServerBoundPluginMessage, TimeUpdate,
+    Title,
+};

protocol/src/version/v1_16_4/mod.rs

@@ -0,0 +1,6 @@
+// Spec: https://wiki.vg/index.php?title=Protocol&oldid=16317
+
+pub mod game;
+
+/// Minecraft protocol version.
+pub const PROTOCOL: u32 = 754;

protocol/src/version/v1_17/game.rs

@@ -0,0 +1,132 @@
+use crate::data::chat::Message;
+use crate::{set_packet_id, version::PacketId};
+use minecraft_protocol_derive::{Decoder, Encoder};
+use nbt::CompoundTag;
+
+set_packet_id!(ServerBoundPluginMessage, 0x0A);
+set_packet_id!(ServerBoundKeepAlive, 0x0F);
+
+set_packet_id!(ClientBoundPluginMessage, 0x18);
+set_packet_id!(NamedSoundEffect, 0x19);
+set_packet_id!(JoinGame, 0x26);
+set_packet_id!(PlayerPositionAndLook, 0x38);
+set_packet_id!(Respawn, 0x3D);
+set_packet_id!(SetTitleSubtitle, 0x57);
+set_packet_id!(TimeUpdate, 0x58);
+set_packet_id!(SetTitleText, 0x59);
+set_packet_id!(SetTitleTimes, 0x5A);
+set_packet_id!(ClientBoundKeepAlive, 0x21);
+
+#[derive(Encoder, Decoder, Debug)]
+pub struct ServerBoundPluginMessage {
+    #[data_type(max_length = 32767)]
+    pub channel: String,
+    pub data: Vec<u8>,
+}
+
+#[derive(Encoder, Decoder)]
+pub struct ServerBoundKeepAlive {
+    pub id: u64,
+}
+
+#[derive(Encoder, Decoder, Debug)]
+pub struct ClientBoundPluginMessage {
+    #[data_type(max_length = 32767)]
+    pub channel: String,
+    pub data: Vec<u8>,
+}
+
+// TODO(timvisee): remove clone?
+#[derive(Clone, Encoder, Decoder, Debug)]
+pub struct NamedSoundEffect {
+    #[data_type(max_length = 32767)]
+    pub sound_name: String,
+    #[data_type(with = "var_int")]
+    pub sound_category: i32,
+    // Mulitplied by 8
+    pub effect_pos_x: i32,
+    // Mulitplied by 8
+    pub effect_pos_y: i32,
+    // Mulitplied by 8
+    pub effect_pos_z: i32,
+    pub volume: f32,
+    pub pitch: f32,
+}
+
+// TODO(timvisee): remove clone?
+#[derive(Clone, Encoder, Decoder, Debug)]
+pub struct JoinGame {
+    pub entity_id: u32,
+    pub hardcore: bool,
+    pub game_mode: u8,
+    pub previous_game_mode: u8,
+    // TODO: max string length: 32767
+    pub world_names: Vec<String>,
+    pub dimension_codec: CompoundTag,
+    pub dimension: CompoundTag,
+    #[data_type(max_length = 32767)]
+    pub world_name: String,
+    pub hashed_seed: i64,
+    #[data_type(with = "var_int")]
+    pub max_players: i32,
+    #[data_type(with = "var_int")]
+    pub view_distance: i32,
+    pub reduced_debug_info: bool,
+    pub enable_respawn_screen: bool,
+    pub is_debug: bool,
+    pub is_flat: bool,
+}
+
+#[derive(Encoder, Decoder, Debug)]
+pub struct Respawn {
+    pub dimension: CompoundTag,
+    #[data_type(max_length = 32767)]
+    pub world_name: String,
+    pub hashed_seed: i64,
+    pub game_mode: u8,
+    pub previous_game_mode: u8,
+    pub is_debug: bool,
+    pub is_flat: bool,
+    pub copy_metadata: bool,
+}
+
+#[derive(Encoder, Decoder, Debug)]
+pub struct PlayerPositionAndLook {
+    pub x: f64,
+    pub y: f64,
+    pub z: f64,
+    pub yaw: f32,
+    pub pitch: f32,
+    pub flags: u8,
+    #[data_type(with = "var_int")]
+    pub teleport_id: i32,
+    pub dismount_vehicle: bool,
+}
+
+#[derive(Encoder, Decoder, Debug)]
+pub struct TimeUpdate {
+    pub world_age: i64,
+    pub time_of_day: i64,
+}
+
+#[derive(Encoder, Decoder, Debug)]
+pub struct SetTitleText {
+    pub text: Message,
+}
+
+#[derive(Encoder, Decoder, Debug)]
+pub struct SetTitleSubtitle {
+    pub text: Message,
+}
+
+#[derive(Encoder, Decoder, Debug)]
+pub struct SetTitleTimes {
+    pub fade_in: i32,
+    pub stay: i32,
+    pub fade_out: i32,
+}
+
+#[derive(Encoder, Decoder, Debug)]
+pub struct ClientBoundKeepAlive {
+    pub id: u64,
+}

protocol/src/version/v1_17/mod.rs

@@ -0,0 +1,6 @@
+// Spec: https://wiki.vg/index.php?title=Protocol&oldid=16866
+
+pub mod game;
+
+/// Minecraft protocol version.
+pub const PROTOCOL: u32 = 755;

protocol/src/version/v1_17_1/game.rs

@@ -0,0 +1,6 @@
+// Re-export
+pub use crate::version::v1_17::game::{
+    ClientBoundKeepAlive, ClientBoundPluginMessage, JoinGame, NamedSoundEffect,
+    PlayerPositionAndLook, Respawn, ServerBoundKeepAlive, ServerBoundPluginMessage,
+    SetTitleSubtitle, SetTitleText, SetTitleTimes, TimeUpdate,
+};

protocol/src/version/v1_17_1/mod.rs

@@ -0,0 +1,6 @@
+// Spec: https://wiki.vg/index.php?title=Protocol&oldid=16918
+
+pub mod game;
+
+/// Minecraft protocol version.
+pub const PROTOCOL: u32 = 756;