Add function to get message sender's UUID (#56)

* Add uuid function for chat messages

* Does this please you, clippy?

azalea-client/Cargo.toml

@@ -26,5 +26,5 @@ parking_lot = {version = "^0.12.1", features = ["deadlock_detection"]}
 regex = "1.7.0"
 thiserror = "^1.0.34"
 tokio = {version = "^1.23.1", features = ["sync"]}
-typemap_rev = "0.2.0"
+typemap_rev = "0.3.0"
 uuid = "^1.1.2"

azalea-client/src/chat.rs

@@ -12,6 +12,7 @@ use std::{
     sync::Arc,
     time::{SystemTime, UNIX_EPOCH},
 };
+use uuid::Uuid;
 
 /// A chat packet, either a system message or a chat message.
 #[derive(Debug, Clone, PartialEq)]
@@ -72,6 +73,15 @@ impl ChatPacket {
         self.split_sender_and_content().0
     }
 
+    /// Get the UUID of the sender of the message. If it's not a
+    /// player-sent chat message, this will be None.
+    pub fn uuid(&self) -> Option<Uuid> {
+        match self {
+            ChatPacket::System(_) => return None,
+            ChatPacket::Player(m) => return Some(m.sender),
+        }
+    }
+
     /// Get the content part of the message as a string. This does not preserve
     /// formatting codes. If it's not a player-sent chat message or the sender
     /// couldn't be determined, this will contain the entire message.