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Add AFK Journey support #80

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18fc609
Add AFK Journey support for loose assets and stripped bundle loading
Koko-boya Apr 22, 2026
400c189
Isolate AFK Journey support and harden extraction
Koko-boya Apr 29, 2026
3425252
Merge upstream master into AFK Journey support
Koko-boya Apr 29, 2026
b8e0b2b
Add native AFK Journey .lpak UnityFS chunk loading
Koko-boya May 22, 2026
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18 changes: 18 additions & 0 deletions AnimeStudio.GUI/Components/AssetItem.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -15,6 +15,9 @@ public class AssetItem : ListViewItem
public string InfoText;
public string UniqueID;
public GameObjectTreeNode TreeNode;
public bool IsVirtual;
public string ExternalPath;
public string VirtualContent;

public AssetItem(Object asset)
{
Expand All @@ -28,6 +31,21 @@ public AssetItem(Object asset)
Hash = asset.GetHash();
}

public AssetItem(string name, ClassIDType type, string externalPath, long fullSize, string container = "")
{
Asset = null;
SourceFile = null;
Text = name;
Type = type;
TypeString = type.ToString();
m_PathID = 0;
FullSize = fullSize;
Hash = string.Empty;
Container = container;
IsVirtual = true;
ExternalPath = externalPath;
}

public void SetSubItems()
{
SubItems.AddRange(new[]
Expand Down
61 changes: 61 additions & 0 deletions AnimeStudio.GUI/Exporter.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -11,6 +11,67 @@ namespace AnimeStudio.GUI
{
internal static class Exporter
{
public static bool ExportVirtualAsset(AssetItem item, string exportPath, ExportType exportType)
{
return exportType switch
{
ExportType.Convert => ExportVirtualConvertFile(item, exportPath),
ExportType.Raw => ExportVirtualRawFile(item, exportPath),
ExportType.Dump => ExportVirtualDumpFile(item, exportPath),
ExportType.JSON => ExportVirtualJsonFile(item, exportPath),
_ => false,
};
}

private static bool ExportVirtualConvertFile(AssetItem item, string exportPath)
{
switch (item.Type)
{
case ClassIDType.Texture2D:
return AFKJourneyUtils.DecodeDxtFile(item.ExternalPath, Path.Combine(exportPath, item.Text)) != null;
case ClassIDType.TextAsset:
if (!TryExportFile(exportPath, item, ".json", out var textPath))
return false;
var text = item.VirtualContent ?? AFKJourneyUtils.DecryptJsoneToText(File.ReadAllBytes(item.ExternalPath));
File.WriteAllText(textPath, text);
return true;
default:
return false;
}
}

private static bool ExportVirtualRawFile(AssetItem item, string exportPath)
{
var extension = Path.GetExtension(item.ExternalPath);
if (!TryExportFile(exportPath, item, string.IsNullOrEmpty(extension) ? ".dat" : extension, out var rawPath))
return false;
File.Copy(item.ExternalPath, rawPath, overwrite: false);
return true;
}

private static bool ExportVirtualDumpFile(AssetItem item, string exportPath)
{
if (!TryExportFile(exportPath, item, ".txt", out var dumpPath))
return false;
var text = item.VirtualContent ?? item.InfoText ?? item.ExternalPath;
File.WriteAllText(dumpPath, text);
return true;
}

private static bool ExportVirtualJsonFile(AssetItem item, string exportPath)
{
if (item.Type != ClassIDType.TextAsset)
{
return ExportVirtualDumpFile(item, exportPath);
}

if (!TryExportFile(exportPath, item, ".json", out var jsonPath))
return false;
var text = item.VirtualContent ?? AFKJourneyUtils.DecryptJsoneToText(File.ReadAllBytes(item.ExternalPath));
File.WriteAllText(jsonPath, text);
return true;
}

public static bool ExportTexture2D(AssetItem item, string exportPath)
{
var m_Texture2D = (Texture2D)item.Asset;
Expand Down
155 changes: 140 additions & 15 deletions AnimeStudio.GUI/MainForm.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -387,7 +387,7 @@ public async void LoadPaths(List<AssetFilterDataItem> filterData, params string[
{
await Task.Run(() => assetsManager.LoadFiles(paths));
}
BuildAssetStructures();
BuildAssetStructures(paths);
}

private async void loadFile_Click(object sender, EventArgs e)
Expand All @@ -405,7 +405,7 @@ private async void loadFile_Click(object sender, EventArgs e)
paths = File.ReadAllLines(paths[0]);
}
await Task.Run(() => assetsManager.LoadFiles(paths));
BuildAssetStructures();
BuildAssetStructures(paths);
}
}

Expand All @@ -424,7 +424,7 @@ private async void loadFolder_Click(object sender, EventArgs e)
assetsManager.SpecifyUnityVersion = specifyUnityVersion.Text;
assetsManager.Game = Studio.Game;
await Task.Run(() => assetsManager.LoadFolder(openFolderDialog.Folder));
BuildAssetStructures();
BuildAssetStructures(openFolderDialog.Folder);
}
}

Expand Down Expand Up @@ -461,10 +461,20 @@ private async void extractFolderToolStripMenuItem_Click(object sender, EventArgs
}
}

private async void BuildAssetStructures()
private async void BuildAssetStructures(params string[] sourcePaths)
{
if (assetsManager.assetsFileList.Count == 0)
{
if (Studio.Game?.Type == GameType.AFKJourney && AddAFKJourneySpecialAssets(sourcePaths) > 0)
{
visibleAssets = exportableAssets;
assetListView.VirtualListSize = visibleAssets.Count;
PopulateTypeFilters();
Text = $"AnimeStudio v{System.Windows.Forms.Application.ProductVersion} - AFK Journey loose assets";
StatusStripUpdate($"Loaded {visibleAssets.Count} AFK Journey loose files for preview.");
return;
}

StatusStripUpdate("No Unity file can be loaded.");
return;
}
Expand Down Expand Up @@ -493,6 +503,12 @@ private async void BuildAssetStructures()

Text = $"AnimeStudio v{System.Windows.Forms.Application.ProductVersion} - {productName} - {assetsManager.assetsFileList[0].unityVersion} - {assetsManager.assetsFileList[0].m_TargetPlatform}";

if (Studio.Game?.Type == GameType.AFKJourney)
{
AddAFKJourneySpecialAssets(sourcePaths);
visibleAssets = exportableAssets;
}

assetListView.VirtualListSize = visibleAssets.Count;

sceneTreeView.BeginUpdate();
Expand All @@ -515,6 +531,69 @@ private async void BuildAssetStructures()
typeMap.Clear();
classesListView.EndUpdate();

PopulateTypeFilters();
var log = $"Finished loading {assetsManager.assetsFileList.Count} files with {visibleAssets.Count} exportable assets";
var m_ObjectsCount = assetsManager.assetsFileList.Sum(x => x.m_Objects.Count);
var objectsCount = assetsManager.assetsFileList.Sum(x => x.Objects.Count);
if (m_ObjectsCount != objectsCount)
{
log += $" and {m_ObjectsCount - objectsCount} assets failed to read";
}
StatusStripUpdate(log);
}

private int AddAFKJourneySpecialAssets(IEnumerable<string> sourcePaths)
{
var added = 0;
var existing = new HashSet<string>(
exportableAssets.Where(asset => asset.IsVirtual && !string.IsNullOrEmpty(asset.ExternalPath)).Select(asset => asset.ExternalPath),
StringComparer.OrdinalIgnoreCase);
foreach (var (file, container) in EnumerateAFKJourneySpecialFiles(sourcePaths))
{
var type = Path.GetExtension(file).Equals(".jsone", StringComparison.OrdinalIgnoreCase)
? ClassIDType.TextAsset
: ClassIDType.Texture2D;
if (!existing.Add(file))
{
continue;
}

var item = new AssetItem(Path.GetFileName(file), type, file, new FileInfo(file).Length, container);
item.InfoText = $"Path: {file}";
item.SetSubItems();
exportableAssets.Add(item);
added++;
}

return added;
}

private static IEnumerable<(string File, string Container)> EnumerateAFKJourneySpecialFiles(IEnumerable<string> sourcePaths)
{
foreach (var sourcePath in sourcePaths.Where(path => !string.IsNullOrEmpty(path)).Distinct(StringComparer.OrdinalIgnoreCase))
{
if (Directory.Exists(sourcePath))
{
var root = Path.GetFullPath(sourcePath);
foreach (var file in Directory.GetFiles(sourcePath, "*.*", SearchOption.AllDirectories))
{
if (AFKJourneyUtils.IsPreviewableSpecialFile(file))
{
var directory = Path.GetDirectoryName(Path.GetFullPath(file)) ?? root;
var container = Path.GetRelativePath(root, directory);
yield return (file, container == "." ? string.Empty : container);
}
}
}
else if (File.Exists(sourcePath) && AFKJourneyUtils.IsPreviewableSpecialFile(sourcePath))
{
yield return (sourcePath, string.Empty);
}
}
}

private void PopulateTypeFilters()
{
var types = exportableAssets.Select(x => x.Type).Distinct().OrderBy(x => x.ToString()).ToArray();
foreach (var type in types)
{
Expand All @@ -529,14 +608,6 @@ private async void BuildAssetStructures()
filterTypeToolStripMenuItem.DropDownItems.Add(typeItem);
}
allToolStripMenuItem.Checked = true;
var log = $"Finished loading {assetsManager.assetsFileList.Count} files with {assetListView.Items.Count} exportable assets";
var m_ObjectsCount = assetsManager.assetsFileList.Sum(x => x.m_Objects.Count);
var objectsCount = assetsManager.assetsFileList.Sum(x => x.Objects.Count);
if (m_ObjectsCount != objectsCount)
{
log += $" and {m_ObjectsCount - objectsCount} assets failed to read";
}
StatusStripUpdate(log);
}

private void typeToolStripMenuItem_Click(object sender, EventArgs e)
Expand Down Expand Up @@ -972,7 +1043,9 @@ private void selectAsset(object sender, ListViewItemSelectionChangedEventArgs e)
{
if (tabControl2.SelectedIndex == 1)
{
dumpTextBox.Text = DumpAsset(lastSelectedItem.Asset);
dumpTextBox.Text = lastSelectedItem.IsVirtual
? lastSelectedItem.VirtualContent ?? lastSelectedItem.InfoText ?? lastSelectedItem.ExternalPath
: DumpAsset(lastSelectedItem.Asset);
}
if (enablePreview.Checked)
{
Expand Down Expand Up @@ -1017,6 +1090,12 @@ private void PreviewAsset(AssetItem assetItem)
return;
try
{
if (assetItem.IsVirtual)
{
PreviewVirtualAsset(assetItem);
return;
}

switch (assetItem.Asset)
{
case GameObject m_GameObject when Properties.Settings.Default.enableModelPreview:
Expand Down Expand Up @@ -1080,6 +1159,43 @@ private void PreviewAsset(AssetItem assetItem)
}
}

private void PreviewVirtualAsset(AssetItem assetItem)
{
switch (assetItem.Type)
{
case ClassIDType.Texture2D:
var decoded = AFKJourneyUtils.DecodeDxtToBitmapData(assetItem.ExternalPath);
FlipPixelsVertically(decoded.Pixels, decoded.Width, decoded.Height);
assetItem.InfoText = $"Width: {decoded.Width}\nHeight: {decoded.Height}\nFormat: {decoded.Format}\nPath: {assetItem.ExternalPath}";
PreviewTexture(new DirectBitmap(decoded.Pixels, decoded.Width, decoded.Height));
StatusStripUpdate("AFK Journey loose DXT texture preview");
break;
case ClassIDType.TextAsset:
assetItem.VirtualContent ??= AFKJourneyUtils.DecryptJsoneToText(File.ReadAllBytes(assetItem.ExternalPath));
assetItem.InfoText = $"Path: {assetItem.ExternalPath}";
PreviewText(assetItem.VirtualContent);
StatusStripUpdate("AFK Journey loose JSOne preview");
break;
default:
StatusStripUpdate("Unsupported AFK Journey loose asset preview.");
break;
}
}

private static void FlipPixelsVertically(byte[] pixels, int width, int height)
{
var stride = width * 4;
var row = new byte[stride];
for (var y = 0; y < height / 2; y++)
{
var top = y * stride;
var bottom = (height - y - 1) * stride;
System.Buffer.BlockCopy(pixels, top, row, 0, stride);
System.Buffer.BlockCopy(pixels, bottom, pixels, top, stride);
System.Buffer.BlockCopy(row, 0, pixels, bottom, stride);
}
}

private void PreviewTexture2D(AssetItem assetItem, Texture2D m_Texture2D)
{
var image = m_Texture2D.ConvertToImage(true);
Expand Down Expand Up @@ -1722,8 +1838,12 @@ private void assetListView_MouseClick(object sender, MouseEventArgs e)

if (assetListView.SelectedIndices.Count == 1)
{
goToSceneHierarchyToolStripMenuItem.Visible = true;
showOriginalFileToolStripMenuItem.Visible = true;
var selectedAsset = (AssetItem)assetListView.Items[assetListView.SelectedIndices[0]];
if (!selectedAsset.IsVirtual)
{
goToSceneHierarchyToolStripMenuItem.Visible = true;
showOriginalFileToolStripMenuItem.Visible = true;
}
}
if (assetListView.SelectedIndices.Count >= 1)
{
Expand Down Expand Up @@ -1767,6 +1887,11 @@ private void exportSelectedAssetsToolStripMenuItem_Click(object sender, EventArg
private void showOriginalFileToolStripMenuItem_Click(object sender, EventArgs e)
{
var selectasset = (AssetItem)assetListView.Items[assetListView.SelectedIndices[0]];
if (selectasset.IsVirtual || selectasset.SourceFile == null)
{
return;
}

var args = $"/select, \"{selectasset.SourceFile.originalPath ?? selectasset.SourceFile.fullName}\"";
var pfi = new ProcessStartInfo("explorer.exe", args);
Process.Start(pfi);
Expand Down
21 changes: 20 additions & 1 deletion AnimeStudio.GUI/Studio.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -71,6 +71,11 @@ public static int ExtractFile(string[] fileNames, string savePath)

public static int ExtractFile(string fileName, string savePath)
{
if (Game?.Type == GameType.AFKJourney && AFKJourneyUtils.IsSupportedSpecialFile(fileName))
{
return AFKJourneyUtils.TryExtractSpecialFile(fileName, savePath);
}

int extractedCount = 0;
var reader = new FileReader(fileName);
reader = reader.PreProcessing(Game);
Expand Down Expand Up @@ -688,7 +693,11 @@ public static Task ExportAssets(string savePath, List<AssetItem> toExportAssets,
}
break;
case AssetGroupOption.BySource: //source file
if (string.IsNullOrEmpty(asset.SourceFile.originalPath))
if (asset.IsVirtual)
{
exportPath = Path.Combine(savePath, Path.GetFileName(asset.ExternalPath) + "_export");
}
else if (string.IsNullOrEmpty(asset.SourceFile.originalPath))
{
exportPath = Path.Combine(savePath, asset.SourceFile.fileName + "_export");
}
Expand All @@ -705,6 +714,16 @@ public static Task ExportAssets(string savePath, List<AssetItem> toExportAssets,
StatusStripUpdate($"[{exportedCount}/{toExportCount}] Exporting {asset.TypeString}: {asset.Text}");
try
{
if (asset.IsVirtual)
{
if (ExportVirtualAsset(asset, exportPath, exportType))
{
exportedCount++;
}
Progress.Report(++i, toExportCount);
continue;
}

switch (exportType)
{
case ExportType.Raw:
Expand Down
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