Added confirmation when setting a monster card face-down.

Assets/SibylSystem/MonoHelpers/TcpHelper.cs

@@ -261,34 +261,45 @@ public static class TcpHelper
     {
         if (tcpClient != null && tcpClient.Connected)
         {
-            Thread t = new Thread(sender);
-            t.Start(message);
+            // 用线程池代替 Thread
+            System.Threading.ThreadPool.QueueUserWorkItem(sender, message);
         }
     }
 
     static object locker = new object();
 
-    static void sender(object o)
+    static void sender(object state)
     {
         try
         {
+            Package message = (Package)state;
+            byte[] data = message.Data.get();
+
+            // 预分配足够的 buffer，避免多余的内存流
+            int totalLen = 2 + 1 + data.Length;
+            byte[] s = new byte[totalLen];
+
+            // 写入长度（short，包含功能码长度）
+            short len = (short)(data.Length + 1);
+            s[0] = (byte)(len & 0xFF);
+            s[1] = (byte)((len >> 8) & 0xFF);
+
+            // 写入功能码
+            s[2] = (byte)message.Fuction;
+
+            // 写入数据
+            Buffer.BlockCopy(data, 0, s, 3, data.Length);
+
+            // 只锁发送
             lock (locker)
             {
-                Package message = (Package)o;
-                byte[] data = message.Data.get();
-                MemoryStream memstream = new MemoryStream();
-                BinaryWriter b = new BinaryWriter(memstream);
-                b.Write(BitConverter.GetBytes((Int16)data.Length + 1), 0, 2);
-                b.Write(BitConverter.GetBytes((byte)message.Fuction), 0, 1);
-                b.Write(data, 0, data.Length);
-                byte[] s = memstream.ToArray();
                 tcpClient.Client.Send(s);
             }
         }
         catch (Exception e)
         {
             onDisConnected = true;
-            Program.DEBUGLOG("onDisConnected 5");
+            Program.DEBUGLOG("onDisConnected 5: " + e.Message + "\n" + e.StackTrace);
         }
     }