added option to support version stripped files, close #766

AssetStudio/AssetsManager.cs

@@ -9,6 +9,7 @@ namespace AssetStudio
 {
     public class AssetsManager
     {
+        public string SpecifyUnityVersion;
         public List<SerializedFile> assetsFileList = new List<SerializedFile>();
         internal Dictionary<string, int> assetsFileIndexCache = new Dictionary<string, int>(StringComparer.OrdinalIgnoreCase);
         internal Dictionary<string, BinaryReader> resourceFileReaders = new Dictionary<string, BinaryReader>(StringComparer.OrdinalIgnoreCase);
@@ -82,6 +83,7 @@ namespace AssetStudio
                 try
                 {
                     var assetsFile = new SerializedFile(this, fullName, reader);
+                    CheckStrippedVersion(assetsFile);
                     assetsFileList.Add(assetsFile);
                     assetsFileListHash.Add(assetsFile.fileName);
 
@@ -130,10 +132,11 @@ namespace AssetStudio
                 {
                     var assetsFile = new SerializedFile(this, fullName, reader);
                     assetsFile.originalPath = originalPath;
-                    if (assetsFile.header.m_Version < SerializedFileFormatVersion.kUnknown_7)
+                    if (!string.IsNullOrEmpty(unityVersion) && assetsFile.header.m_Version < SerializedFileFormatVersion.kUnknown_7)
                     {
                         assetsFile.SetVersion(unityVersion);
                     }
+                    CheckStrippedVersion(assetsFile);
                     assetsFileList.Add(assetsFile);
                     assetsFileListHash.Add(assetsFile.fileName);
                 }
@@ -218,6 +221,18 @@ namespace AssetStudio
             }
         }
 
+        public void CheckStrippedVersion(SerializedFile assetsFile)
+        {
+            if (assetsFile.IsVersionStripped && string.IsNullOrEmpty(SpecifyUnityVersion))
+            {
+                throw new Exception("The Unity version has been stripped, please set the version in the options");
+            }
+            if (!string.IsNullOrEmpty(SpecifyUnityVersion))
+            {
+                assetsFile.SetVersion(SpecifyUnityVersion);
+            }
+        }
+
         public void Clear()
         {
             foreach (var assetsFile in assetsFileList)

AssetStudio/SerializedFile.cs

@@ -219,11 +219,14 @@ namespace AssetStudio
 
         public void SetVersion(string stringVersion)
         {
-            unityVersion = stringVersion;
+            if (stringVersion != strippedVersion)
-            var buildSplit = Regex.Replace(stringVersion, @"\d", "").Split(new[] { "." }, StringSplitOptions.RemoveEmptyEntries);
+            {
-            buildType = new BuildType(buildSplit[0]);
+                unityVersion = stringVersion;
-            var versionSplit = Regex.Replace(stringVersion, @"\D", ".").Split(new[] { "." }, StringSplitOptions.RemoveEmptyEntries);
+                var buildSplit = Regex.Replace(stringVersion, @"\d", "").Split(new[] { "." }, StringSplitOptions.RemoveEmptyEntries);
-            version = versionSplit.Select(int.Parse).ToArray();
+                buildType = new BuildType(buildSplit[0]);
+                var versionSplit = Regex.Replace(stringVersion, @"\D", ".").Split(new[] { "." }, StringSplitOptions.RemoveEmptyEntries);
+                version = versionSplit.Select(int.Parse).ToArray();
+            }
         }
 
         private SerializedType ReadSerializedType(bool isRefType)
@@ -371,6 +374,10 @@ namespace AssetStudio
             ObjectsDic.Add(obj.m_PathID, obj);
         }
 
+        public bool IsVersionStripped => unityVersion == strippedVersion;
+
+        private const string strippedVersion = "0.0.0";
+
         public static bool IsSerializedFile(EndianBinaryReader reader)
         {
             var fileSize = reader.BaseStream.Length;

AssetStudioGUI/AssetStudioGUIForm.Designer.cs

@@ -41,6 +41,8 @@
             this.displayAll = new System.Windows.Forms.ToolStripMenuItem();
             this.enablePreview = new System.Windows.Forms.ToolStripMenuItem();
             this.displayInfo = new System.Windows.Forms.ToolStripMenuItem();
+            this.toolStripMenuItem14 = new System.Windows.Forms.ToolStripMenuItem();
+            this.specifyUnityVersion = new System.Windows.Forms.ToolStripTextBox();
             this.showExpOpt = new System.Windows.Forms.ToolStripMenuItem();
             this.modelToolStripMenuItem = new System.Windows.Forms.ToolStripMenuItem();
             this.exportAllObjectssplitToolStripMenuItem1 = new System.Windows.Forms.ToolStripMenuItem();
@@ -210,6 +212,7 @@
             this.displayAll,
             this.enablePreview,
             this.displayInfo,
+            this.toolStripMenuItem14,
             this.showExpOpt});
             this.optionsToolStripMenuItem.Name = "optionsToolStripMenuItem";
             this.optionsToolStripMenuItem.Size = new System.Drawing.Size(66, 21);
@@ -249,6 +252,20 @@
     "t, audio bitrate, etc.";
             this.displayInfo.CheckedChanged += new System.EventHandler(this.displayAssetInfo_Check);
             // 
+            // toolStripMenuItem14
+            // 
+            this.toolStripMenuItem14.DropDownItems.AddRange(new System.Windows.Forms.ToolStripItem[] {
+            this.specifyUnityVersion});
+            this.toolStripMenuItem14.Name = "toolStripMenuItem14";
+            this.toolStripMenuItem14.Size = new System.Drawing.Size(223, 22);
+            this.toolStripMenuItem14.Text = "Specify Unity version";
+            // 
+            // specifyUnityVersion
+            // 
+            this.specifyUnityVersion.Font = new System.Drawing.Font("Microsoft YaHei UI", 9F);
+            this.specifyUnityVersion.Name = "specifyUnityVersion";
+            this.specifyUnityVersion.Size = new System.Drawing.Size(100, 23);
+            // 
             // showExpOpt
             // 
             this.showExpOpt.Name = "showExpOpt";
@@ -429,7 +446,7 @@
             // toolStripSeparator2
             // 
             this.toolStripSeparator2.Name = "toolStripSeparator2";
-            this.toolStripSeparator2.Size = new System.Drawing.Size(396, 6);
+            this.toolStripSeparator2.Size = new System.Drawing.Size(281, 6);
             // 
             // toolStripMenuItem10
             // 
@@ -438,27 +455,27 @@
             this.toolStripMenuItem12,
             this.toolStripMenuItem13});
             this.toolStripMenuItem10.Name = "toolStripMenuItem10";
-            this.toolStripMenuItem10.Size = new System.Drawing.Size(399, 34);
+            this.toolStripMenuItem10.Size = new System.Drawing.Size(284, 22);
             this.toolStripMenuItem10.Text = "Asset list to XML";
             // 
             // toolStripMenuItem11
             // 
             this.toolStripMenuItem11.Name = "toolStripMenuItem11";
-            this.toolStripMenuItem11.Size = new System.Drawing.Size(270, 34);
+            this.toolStripMenuItem11.Size = new System.Drawing.Size(165, 22);
             this.toolStripMenuItem11.Text = "All assets";
             this.toolStripMenuItem11.Click += new System.EventHandler(this.toolStripMenuItem11_Click);
             // 
             // toolStripMenuItem12
             // 
             this.toolStripMenuItem12.Name = "toolStripMenuItem12";
-            this.toolStripMenuItem12.Size = new System.Drawing.Size(270, 34);
+            this.toolStripMenuItem12.Size = new System.Drawing.Size(165, 22);
             this.toolStripMenuItem12.Text = "Selected assets";
             this.toolStripMenuItem12.Click += new System.EventHandler(this.toolStripMenuItem12_Click);
             // 
             // toolStripMenuItem13
             // 
             this.toolStripMenuItem13.Name = "toolStripMenuItem13";
-            this.toolStripMenuItem13.Size = new System.Drawing.Size(270, 34);
+            this.toolStripMenuItem13.Size = new System.Drawing.Size(165, 22);
             this.toolStripMenuItem13.Text = "Filtered assets";
             this.toolStripMenuItem13.Click += new System.EventHandler(this.toolStripMenuItem13_Click);
             // 
@@ -1178,6 +1195,8 @@
         private System.Windows.Forms.ToolStripMenuItem toolStripMenuItem11;
         private System.Windows.Forms.ToolStripMenuItem toolStripMenuItem12;
         private System.Windows.Forms.ToolStripMenuItem toolStripMenuItem13;
+        private System.Windows.Forms.ToolStripMenuItem toolStripMenuItem14;
+        private System.Windows.Forms.ToolStripTextBox specifyUnityVersion;
     }
 }
 

AssetStudioGUI/AssetStudioGUIForm.cs

@@ -116,7 +116,7 @@ namespace AssetStudioGUI
             if (paths.Length > 0)
             {
                 ResetForm();
-
+                assetsManager.SpecifyUnityVersion = specifyUnityVersion.Text;
                 if (paths.Length == 1 && Directory.Exists(paths[0]))
                 {
                     await Task.Run(() => assetsManager.LoadFolder(paths[0]));
@@ -125,7 +125,6 @@ namespace AssetStudioGUI
                 {
                     await Task.Run(() => assetsManager.LoadFiles(paths));
                 }
-
                 BuildAssetStructures();
             }
         }
@@ -135,6 +134,7 @@ namespace AssetStudioGUI
             if (openFileDialog1.ShowDialog() == DialogResult.OK)
             {
                 ResetForm();
+                assetsManager.SpecifyUnityVersion = specifyUnityVersion.Text;
                 await Task.Run(() => assetsManager.LoadFiles(openFileDialog1.FileNames));
                 BuildAssetStructures();
             }
@@ -146,6 +146,7 @@ namespace AssetStudioGUI
             if (openFolderDialog.ShowDialog(this) == DialogResult.OK)
             {
                 ResetForm();
+                assetsManager.SpecifyUnityVersion = specifyUnityVersion.Text;
                 await Task.Run(() => assetsManager.LoadFolder(openFolderDialog.Folder));
                 BuildAssetStructures();
             }