From 528a2b59e1b5519ddf0bebff6e92300705656952 Mon Sep 17 00:00:00 2001
From: chai <215380520@qq.com>
Date: Fri, 13 Oct 2023 20:28:43 +0800
Subject: + MultiplayerToolkit

---
 Tools/Hazel-Networking/Hazel/MessageWriter.cs | 22 +++++++++++++++-------
 1 file changed, 15 insertions(+), 7 deletions(-)

(limited to 'Tools/Hazel-Networking/Hazel/MessageWriter.cs')

diff --git a/Tools/Hazel-Networking/Hazel/MessageWriter.cs b/Tools/Hazel-Networking/Hazel/MessageWriter.cs
index cbae11c..68280cd 100644
--- a/Tools/Hazel-Networking/Hazel/MessageWriter.cs
+++ b/Tools/Hazel-Networking/Hazel/MessageWriter.cs
@@ -6,12 +6,15 @@ using System.Text;
 namespace Hazel
 {
     /// <summary>
-    /// 嵌套结构的Message
+    /// 单向写入的Message，嵌套结构的Message，如果有嵌套，也只有一个header，子协议没有header
+    /// 整个结构都会被socket发送，参见UdpConnection.cs
     /// 结构：
-    /// ------------------------------------
-    /// 2bytes (ushort) 包长度
-    /// 1bytes (tag)    协议ID，在AmongUS里是tags.cs里定义的tag和subtag
-    /// ------------------------------------
+    /// -------------header-----------------
+    /// 1bytes          SendOption 是否是可靠传输
+    /// (2bytes)        (可靠传输用到的） 
+    /// --------------数据------------------
+    /// 2bytes          包长度（不含这2bytes和下面的tag 1byte)
+    /// 1bytes          协议ID，在AmongUS里是tags.cs里定义的tag和subtag
     /// 数据 包括嵌套的子协议
     /// ------------------------------------
     /// </summary>
@@ -20,8 +23,8 @@ namespace Hazel
         public static int BufferSize = 64000;
         public static readonly ObjectPool<MessageWriter> WriterPool = new ObjectPool<MessageWriter>(() => new MessageWriter(BufferSize));
 
-        public byte[] Buffer;
-        public int Length; // 总长度
+        public byte[] Buffer; // 缓冲区，保存了整个包体，包括头部和内容
+        public int Length;  // 有效数据在buffer中的长度，可能包含多个嵌套子协议。Length>=Position
         public int Position; // 写入游标
 
         public SendOption SendOption { get; private set; }
@@ -86,6 +89,11 @@ namespace Hazel
             return output;
         }
 
+        /// <summary>
+        /// expected没有header
+        /// </summary>
+        /// <param name="expected"></param>
+        /// <returns></returns>
         public bool HasBytes(int expected)
         {
             if (this.SendOption == SendOption.None)
-- 
cgit v1.1-26-g67d0