fix superpre cards download

Assets/ArtSystem/YGOPro1/YGO1superShower.cs

 using UnityEngine;
 using System.Collections;
 
-public class YGO1superShower : MonoBehaviour {
+public class YGO1superShower : MonoBehaviour
+{
     public UITexture card;
     public UITexture closeup;
     // Use this for initialization
-    void Start () {
-	
-	}
-	
-	// Update is called once per frame
-	void Update () {
-	
-	}
+    void Start()
+    {
+
+    }
+
+    // Update is called once per frame
+    void Update()
+    {
+
+    }
 }

Assets/SibylSystem/Menu/Menu.cs

@@ -193,7 +193,7 @@ public class Menu : WindowServantSP
 
         // 2. 使用 DownloadFileWithHeadCheck 下载文件
         bool downloadCompleted = false;
-        bool fileExistedBefore = File.Exists(ypkFilePath);
+        bool newVersionDownloaded = false;
 
         int lastReportedProgress = 0; // 用于控制进度报告的频率
         yield return Program.I().StartCoroutine(UnityFileDownloader.DownloadFileWithHeadCheck(
@@ -205,6 +205,11 @@ public class Menu : WindowServantSP
             },
             (progress) =>
             {
+                if (!newVersionDownloaded)
+                {
+                    newVersionDownloaded = true;
+                    Program.PrintToChat("发现新版本，开始下载...");
+                }
                 int currentProgress = Mathf.FloorToInt(progress * 100);
                 if (currentProgress >= lastReportedProgress + 10)
                 {
@@ -218,14 +223,13 @@ public class Menu : WindowServantSP
         if (!downloadCompleted)
         {
             Program.PrintToChat("超先行卡更新失败，请检查网络连接或稍后再试。");
+            isDownloadingSuperPre = false;
             yield break; // 提前退出协程
         }
 
-        bool fileExistsAfter = File.Exists(ypkFilePath);
-
-        if (!fileExistedBefore && fileExistsAfter)
+        if (newVersionDownloaded)
         {
-            Program.PrintToChat("发现新版本，下载完成，开始解压。");
+            Program.PrintToChat("下载完成，开始解压。");
             yield return null;
             try
             {