parse protocol version

one thing less to care about when porting

assets/packets.json

@@ -1,4 +1,5 @@
 {
+  "version": 770,
   "serverbound": {
     "handshake": [
       "intention"

pumpkin-data/build/packet.rs

@@ -6,6 +6,7 @@ use serde::Deserialize;
 
 #[derive(Deserialize)]
 pub struct Packets {
+    version: u32,
     serverbound: HashMap<String, Vec<String>>,
     clientbound: HashMap<String, Vec<String>>,
 }
@@ -15,10 +16,14 @@ pub(crate) fn build() -> TokenStream {
 
     let packets: Packets = serde_json::from_str(include_str!("../../assets/packets.json"))
         .expect("Failed to parse packets.json");
+    let version = packets.version;
     let serverbound_consts = parse_packets(packets.serverbound);
     let clientbound_consts = parse_packets(packets.clientbound);
 
     quote!(
+        /// The current Minecraft protocol version. This changes only when the protocol itself is modified.
+        pub const CURRENT_MC_PROTOCOL: u32 = #version;
+
         pub mod serverbound {
             #serverbound_consts
         }

pumpkin-protocol/src/lib.rs

@@ -1,7 +1,6 @@
 use std::{
     io::{Read, Write},
     marker::PhantomData,
-    num::NonZeroU16,
 };
 
 use aes::cipher::{BlockDecryptMut, BlockEncryptMut, BlockSizeUser, generic_array::GenericArray};
@@ -27,10 +26,6 @@ pub mod ser;
 #[cfg(feature = "serverbound")]
 pub mod server;
 
-/// The current Minecraft protocol number.
-/// Don't forget to change this when porting.
-pub const CURRENT_MC_PROTOCOL: NonZeroU16 = unsafe { NonZeroU16::new_unchecked(770) };
-
 pub const MAX_PACKET_SIZE: u64 = 2097152;
 pub const MAX_PACKET_DATA_SIZE: usize = 8388608;
 

pumpkin/src/command/commands/pumpkin.rs

@@ -1,16 +1,16 @@
 use async_trait::async_trait;
-use pumpkin_protocol::CURRENT_MC_PROTOCOL;
+use pumpkin_data::packet::CURRENT_MC_PROTOCOL;
 use pumpkin_util::text::click::ClickEvent;
 use pumpkin_util::text::hover::HoverEvent;
 use pumpkin_util::text::{TextComponent, color::NamedColor};
 use std::borrow::Cow;
 
+use crate::server::CURRENT_MC_VERSION;
 use crate::{
     GIT_VERSION,
     command::{
         CommandError, CommandExecutor, CommandSender, args::ConsumedArgs, tree::CommandTree,
     },
-    server::CURRENT_MC_VERSION,
 };
 
 const NAMES: [&str; 2] = ["pumpkin", "version"];

pumpkin/src/main.rs

@@ -37,6 +37,7 @@
 compile_error!("Compiling for WASI targets is not supported!");
 
 use plugin::PluginManager;
+use pumpkin_data::packet::CURRENT_MC_PROTOCOL;
 use std::{
     io::{self},
     sync::LazyLock,
@@ -49,7 +50,6 @@ use tokio::sync::Mutex;
 
 use crate::server::CURRENT_MC_VERSION;
 use pumpkin::{PumpkinServer, SHOULD_STOP, STOP_INTERRUPT, init_log, stop_server};
-use pumpkin_protocol::CURRENT_MC_PROTOCOL;
 use pumpkin_util::text::{TextComponent, color::NamedColor};
 use std::time::Instant;
 // Setup some tokens to allow us to identify which event is for which socket.
@@ -92,7 +92,6 @@ async fn main() {
         .thread_name(|_| "rayon-worker".to_string())
         .build_global()
         .expect("Rayon thread pool can only be initialized once");
-
     log::info!(
         "Starting Pumpkin {CARGO_PKG_VERSION} ({GIT_VERSION}) for Minecraft {CURRENT_MC_VERSION} (Protocol {CURRENT_MC_PROTOCOL})",
     );

pumpkin/src/net/packet/handshake.rs

@@ -1,6 +1,5 @@
-use std::num::NonZeroI32;
+use pumpkin_data::packet::CURRENT_MC_PROTOCOL;
-
+use pumpkin_protocol::{ConnectionState, server::handshake::SHandShake};
-use pumpkin_protocol::{CURRENT_MC_PROTOCOL, ConnectionState, server::handshake::SHandShake};
 use pumpkin_util::text::TextComponent;
 
 use crate::{net::Client, server::CURRENT_MC_VERSION};
@@ -16,7 +15,7 @@ impl Client {
         self.connection_state.store(handshake.next_state);
         if self.connection_state.load() != ConnectionState::Status {
             let protocol = version;
-            match protocol.cmp(&NonZeroI32::from(CURRENT_MC_PROTOCOL).get()) {
+            match protocol.cmp(&(CURRENT_MC_PROTOCOL as i32)) {
                 std::cmp::Ordering::Less => {
                     self.kick(TextComponent::translate(
                         "multiplayer.disconnect.outdated_client",

pumpkin/src/server/connection_cache.rs

@@ -2,14 +2,14 @@ use core::error;
 use std::{
     fs::File,
     io::{Cursor, Read},
-    num::NonZeroU32,
     path::Path,
 };
 
 use base64::{Engine as _, engine::general_purpose};
 use pumpkin_config::{BASIC_CONFIG, BasicConfiguration};
+use pumpkin_data::packet::CURRENT_MC_PROTOCOL;
 use pumpkin_protocol::{
-    CURRENT_MC_PROTOCOL, Players, StatusResponse, Version,
+    Players, StatusResponse, Version,
     client::{config::CPluginMessage, status::CStatusResponse},
     codec::{Codec, var_int::VarInt},
 };
@@ -144,7 +144,7 @@ impl CachedStatus {
         StatusResponse {
             version: Some(Version {
                 name: CURRENT_MC_VERSION.into(),
-                protocol: NonZeroU32::from(CURRENT_MC_PROTOCOL).get(),
+                protocol: CURRENT_MC_PROTOCOL,
             }),
             players: Some(Players {
                 max: config.max_players,

pumpkin/src/server/seasonal_events.rs

@@ -12,7 +12,7 @@ pub fn is_april() -> bool {
 
 #[must_use]
 pub fn modify_chat_message(message: &str) -> Option<String> {
-    if !advanced_config().fun.april_fools && is_april() {
+    if !advanced_config().fun.april_fools || !is_april() {
         return None;
     }
     let mut words: Vec<&str> = message.split_whitespace().collect();