From ee99f7c63a88e1f8dfeebcd9256f086a671ea905 Mon Sep 17 00:00:00 2001
From: MeexReay <meexreay@gmail.com>
Date: Mon, 13 May 2024 13:42:53 +0300
Subject: [PATCH] wow

---
 README.md | 112 +++++++++++++++++++++++++++++++++++++++++++++++++++++-
 1 file changed, 110 insertions(+), 2 deletions(-)

diff --git a/README.md b/README.md
index e532780..b7a5711 100644
--- a/README.md
+++ b/README.md
@@ -13,10 +13,17 @@ pub type MCConn<T> = MinecraftConnection<T>;
 pub type MCConnTcp = MinecraftConnection<TcpStream>;
 ```
 
-example how to get motd
+example of receiving motd: (`cargo run --example recv_motd`)
 ```rust
 use rust_mc_proto::{Packet, ProtocolError, MCConnTcp, DataBufferReader, DataBufferWriter};
 
+/*
+
+    Example of receiving motd from the server
+    Sends handshake, status request and receiving one
+
+*/
+
 fn send_handshake(conn: &mut MCConnTcp,
                 protocol_version: u16,
                 server_address: &str,
@@ -25,7 +32,7 @@ fn send_handshake(conn: &mut MCConnTcp,
     let mut packet = Packet::empty(0x00);
 
     packet.write_u16_varint(protocol_version)?;
-    packet.write_string(server_address.to_string())?;
+    packet.write_string(server_address)?;
     packet.write_unsigned_short(server_port)?;
     packet.write_u8_varint(next_state)?;
 
@@ -59,6 +66,107 @@ fn main() {
 }
 ```
 
+example of simple server that only send motd and ping (`cargo run --example status_server`)
+```rust
+use std::{net::TcpListener, sync::{Arc, Mutex}, thread};
+
+use rust_mc_proto::{DataBufferReader, DataBufferWriter, MCConn, MCConnTcp, MinecraftConnection, Packet, ProtocolError};
+
+/*
+
+    Example of simple server that sends motd 
+    to client like an vanilla minecraft server
+
+*/
+
+struct MinecraftServer {
+    server_ip: String,
+    server_port: u16,
+    protocol_version: u16,
+    motd: String
+}
+
+impl MinecraftServer {
+    fn new(server_ip: &str,
+            server_port: u16,
+            protocol_version: u16,
+            motd: &str) -> Self {
+        MinecraftServer {
+            server_ip: server_ip.to_string(),
+            server_port,
+            protocol_version,
+            motd: motd.to_string()
+        }
+    }
+}
+
+fn accept_client(mut conn: MCConnTcp, server: Arc<Mutex<MinecraftServer>>) -> Result<(), ProtocolError> {
+    let mut handshake = false;
+    
+    loop {
+        let mut packet = match conn.read_packet() {
+            Ok(i) => i,
+            Err(_) => { break; },
+        };
+
+        if handshake {
+            if packet.id == 0x00 {
+                let mut status = Packet::empty(0x00);
+                status.write_string(&server.lock().unwrap().motd)?;
+                conn.write_packet(&status)?;
+            } else if packet.id == 0x01 {
+                let mut status = Packet::empty(0x01);
+                status.write_long(packet.read_long()?)?;
+                conn.write_packet(&status)?;
+            }
+        } else if packet.id == 0x00 {
+            let protocol_version = packet.read_u16_varint()?;
+            let server_address = packet.read_string()?;
+            let server_port = packet.read_unsigned_short()?;
+            let next_state = packet.read_u8_varint()?;
+
+            if next_state != 1 { break; }
+
+            println!("Client handshake info:");
+            println!("  IP: {}", conn.stream.peer_addr().unwrap());
+            println!("  Protocol version: {}", protocol_version);
+            println!("  Server address: {}", server_address);
+            println!("  Server port: {}", server_port);
+
+            handshake = true;
+        } else {
+            break;
+        }
+    }
+
+    conn.close();
+
+    Ok(())
+}
+
+fn main() {
+    let server = MinecraftServer::new(
+        "localhost", 
+        25565, 
+        765,
+        "{}" // TODO: write real motd
+    );
+
+    let addr = server.server_ip.clone() + ":" + &server.server_port.to_string();
+    let listener = TcpListener::bind(addr).unwrap();
+    let server = Arc::new(Mutex::new(server));
+
+    for stream in listener.incoming() {
+        let stream = stream.unwrap();
+        let local_server = server.clone();
+
+        thread::spawn(move || {
+            accept_client(MinecraftConnection::new(stream), local_server).unwrap();
+        });
+    }
+}
+```
+
 also you can get minecraft connection from any stream: `MinecraftConnection::from_stream`
 
 I think this crate can be used for a server on rust idk -_-
\ No newline at end of file