Add packet logging for debugging

Author: iceiix

src/protocol/mod.rs

@@ -923,7 +923,10 @@ impl Conn {
             Direction::Serverbound => Direction::Clientbound,
         };
 
+        println!("about to parse id={:x}, dir={:?} state={:?}", id, dir, self.state);
+        std::fs::File::create("/tmp/p")?.write_all(buf.get_ref())?;
         let packet = packet::packet_by_id(self.protocol_version, self.state, dir, id, &mut buf)?;
+        println!("packet = {:?}", packet);
 
         match packet {
             Some(val) => {