diff --git a/include/protocol/Protocol.h b/include/protocol/Protocol.h
index 11af889..d372412 100644
--- a/include/protocol/Protocol.h
+++ b/include/protocol/Protocol.h
@@ -10,28 +10,32 @@ namespace protocol {
 class PacketHandler;
 
 enum class PacketType : std::uint8_t {
+    // client --> server
     PlayerLogin = 0,
+    SelectTeam,
+    SpawnMob,
+    SendMobs,
+    PlaceTower,
+
+    // client <-- server
     PlayerJoin,
     PlayerLeave,
     WorldBeginData,
     WorldData,
-    ChunkData,
-    KeepAlive,
     UpdateMoney,
     UpdateEXP,
     UpdateLobbyTime,
     UpdateGameState,
-    Disconnect,
     PlayerList,
     ConnectionInfo,
-    SelectTeam,
     UpdatePlayerTeam,
     ServerTps,
-    SpawnMob,
-    SendMobs,
-    PlaceTower,
     WorldAddTower,
     WorldRemoveTower,
+
+    // client <--> server
+    KeepAlive,
+    Disconnect,
 };
 
 struct WorldHeader {
@@ -486,5 +490,7 @@ public:
     virtual PacketType getType() const { return PacketType::WorldRemoveTower; }
 };
 
+class 
+
 }
 }
\ No newline at end of file