public static void HandlePostInstall()
{
// Remove from the Editor update loop; we only need this to run once.
EditorApplication.update -= HandlePostInstall;
// Check if user just installed or upgraded Poly Toolkit.
string basePath = PtUtils.GetPtBaseLocalPath();
string upgradeFilePath = PtUtils.ToAbsolutePath(basePath + "/upgrade.dat");
string currentVersion = "";
bool isUpgrade = false;
try {
currentVersion = File.ReadAllText(upgradeFilePath).Trim();
} catch (Exception) {}
if (currentVersion == PtSettings.Version.ToString())
{
return;
}
isUpgrade = !string.IsNullOrEmpty(currentVersion);
// Show the welcome window.
WelcomeWindow.ShowWelcomeWindow();
AssetBrowserWindow.BrowsePolyAssets();
File.WriteAllText(upgradeFilePath, PtSettings.Version.ToString());
// In the future, if we need to do any post-upgrade maintenance, we can add it here.
PtAnalytics.SendEvent(isUpgrade ? PtAnalytics.Action.INSTALL_UPGRADE
: PtAnalytics.Action.INSTALL_NEW_2, PtSettings.Version.ToString());
}
/// <summary>
/// Scans the project for PtAsset assets marked as third-party and generates an attributions
/// file in the user's Resources directory containing a list of those resources, the names
/// of the authors and links to the original creations.
/// </summary>
public static void Generate(bool showUi)
{
string fileFullPath = Path.Combine(PtUtils.ToAbsolutePath(PtSettings.Instance.resourcesPath),
AttributionGeneration.ATTRIB_FILE_NAME);
string[] assetGuids = AssetDatabase.FindAssets(PtAsset.FilterString);
// List of assets that are licensed under Creative Commons (require attribution).
List <PtAsset> ccByAssets = new List <PtAsset>();
foreach (string assetGuid in assetGuids)
{
string localPath = AssetDatabase.GUIDToAssetPath(assetGuid);
PtAsset ptAsset = AssetDatabase.LoadAssetAtPath <PtAsset>(localPath);
if (ptAsset != null && ptAsset.license == PolyAssetLicense.CREATIVE_COMMONS_BY)
{
ccByAssets.Add(ptAsset);
}
}
if (ccByAssets.Count == 0)
{
// No need for an attribution file.
if (File.Exists(fileFullPath))
{
File.Delete(fileFullPath);
}
if (showUi)
{
EditorUtility.DisplayDialog("No Assets Require Attribution",
"No Poly assets were found in the project that require attribution. " +
"No attribution file was generated.", "OK");
}
return;
}
Directory.CreateDirectory(Path.GetDirectoryName(fileFullPath));
StringBuilder sb = new StringBuilder();
sb.AppendLine(AttributionGeneration.FILE_HEADER);
ccByAssets.Sort((PtAsset a, PtAsset b) => { return(a.title.CompareTo(b.title)); });
foreach (PtAsset ptAsset in ccByAssets)
{
sb.AppendLine();
sb.Append(AttributionGeneration.GenerateAttributionString(ptAsset.title, ptAsset.author,
ptAsset.url, AttributionGeneration.CC_BY_LICENSE)).AppendLine();
}
File.WriteAllText(fileFullPath, sb.ToString());
if (showUi)
{
EditorUtility.DisplayDialog("File Generated",
"Attributions file generated at:\n" + fileFullPath + ".\n\nYou can load this file at runtime " +
"and display it with Resources.Load().", "OK");
}
}
private bool PrepareDownload(PolyAsset asset, out string baseName, out string downloadLocalPath)
{
assetsBeingDownloaded.Remove(asset);
PtDebug.LogFormat("ABM: Preparing to download {0}", asset);
// basePath is something like Assets/Poly/Sources.
string baseLocalPath = PtUtils.NormalizeLocalPath(PtSettings.Instance.assetSourcesPath);
if (!baseLocalPath.StartsWith("Assets/"))
{
Debug.LogErrorFormat("Invalid asset sources folder {0}. Must be under Assets folder.");
baseName = downloadLocalPath = null;
return(false);
}
// basePathAbs is something like C:\Users\foo\bar\MyUnityProject\Assets\Poly\Sources
string baseFullPath = PtUtils.ToAbsolutePath(baseLocalPath);
if (!Directory.Exists(baseFullPath))
{
Directory.CreateDirectory(baseFullPath);
}
baseName = PtUtils.GetPtAssetBaseName(asset);
PtDebug.LogFormat("Import name: {0}", baseName);
// downloadLocalPath is something like Assets/Poly/Sources/assetTitle_assetId
downloadLocalPath = baseLocalPath + "/" + baseName;
string downloadFullPath = PtUtils.ToAbsolutePath(downloadLocalPath);
if (Directory.Exists(downloadFullPath))
{
if (PtSettings.Instance.warnOnSourceOverwrite &&
!EditorUtility.DisplayDialog("Warning: Overwriting asset source folder",
string.Format("The asset source folder '{0}' will be deleted and created again. " +
"This should be safe *unless* you have manually made changes to its contents, " +
"in which case you will lose those changes.\n\n" +
"(You can silence this warning in Poly Toolkit settings)",
asset.displayName, downloadLocalPath), "OK", "Cancel"))
{
return(false);
}
Directory.Delete(downloadFullPath, /* recursive */ true);
}
// Create the download folder.
// Something like C:\Users\foo\bar\MyUnityProject\Assets\Poly\Sources\assetTitle_assetId
Directory.CreateDirectory(downloadFullPath);
return(true);
}
private void OnFetchFinished(PolyStatus status, PolyAsset asset, bool isGltf2,
string ptAssetLocalPath, EditTimeImportOptions options)
{
if (!status.ok)
{
Debug.LogErrorFormat("Error fetching asset {0} ({1}): {2}", asset.name, asset.displayName, status);
EditorUtility.DisplayDialog("Download Error",
string.Format("*** Error downloading asset '{0}'. Try again later.", asset.displayName), "OK");
PtAnalytics.SendEvent(PtAnalytics.Action.IMPORT_FAILED, "Asset fetch failed");
return;
}
string baseName, downloadLocalPath;
if (!PrepareDownload(asset, out baseName, out downloadLocalPath))
{
return;
}
string absPath = PtUtils.ToAbsolutePath(downloadLocalPath);
string extension = isGltf2 ? ".gltf2" : ".gltf";
string fileName = baseName + extension;
// We have to place an import request so that PolyImporter does the right thing when it sees the new file.
PolyImporter.AddImportRequest(new PolyImporter.ImportRequest(
downloadLocalPath + "/" + fileName, ptAssetLocalPath, options, asset));
// Now unpackage it. GltfProcessor will pick it up automatically.
UnpackPackageToFolder(isGltf2 ? asset.GetFormatIfExists(PolyFormatType.GLTF_2) :
asset.GetFormatIfExists(PolyFormatType.GLTF), absPath, fileName);
PtDebug.LogFormat("ABM: Successfully downloaded {0} to {1}", asset, absPath);
AssetDatabase.Refresh();
if (null != refreshCallback)
{
refreshCallback();
}
}
/// <summary>
/// Executes the given import request, producing a PtAsset and a prefab.
/// </summary>
/// <param name="request">The request to perform.</param>
private static void ExecuteImportRequest(ImportRequest request)
{
PtDebug.LogFormat("Executing import request: {0}", request);
string gltfFullPath = PtUtils.ToAbsolutePath(request.gltfLocalPath);
string assetLocalPath = request.ptAssetLocalPath;
string assetFullPath = PtUtils.ToAbsolutePath(assetLocalPath);
PtAsset assetToReplace = AssetDatabase.LoadAssetAtPath <PtAsset>(assetLocalPath);
GameObject prefabToReplace = null;
if (assetToReplace != null)
{
if (assetToReplace.assetPrefab == null)
{
Debug.LogErrorFormat("Couldn't find prefab for asset {0}.", assetToReplace);
PtAnalytics.SendEvent(PtAnalytics.Action.IMPORT_FAILED, "Prefab not found");
return;
}
prefabToReplace = assetToReplace.assetPrefab;
}
// Determine if file is glTF2 or glTF1.
bool isGltf2 = Path.GetExtension(request.gltfLocalPath) == ".gltf2";
// First, import the GLTF and build a GameObject from it.
EditorUtility.DisplayProgressBar(PROGRESS_BAR_TITLE, PROGRESS_BAR_TEXT, 0.5f);
// Use a SanitizedPath stream loader because any format file we have downloaded and saved to disk we
// have replaced the original relative path string with the MD5 string hash. This custom stream loader
// will always convert uris passed to it to this hash value, and read them from there.
IUriLoader binLoader = new HashedPathBufferedStreamLoader(Path.GetDirectoryName(gltfFullPath));
ImportGltf.GltfImportResult result = null;
using (TextReader reader = new StreamReader(gltfFullPath)) {
result = ImportGltf.Import(isGltf2 ? GltfSchemaVersion.GLTF2 : GltfSchemaVersion.GLTF1,
reader, binLoader, request.options.baseOptions);
}
EditorUtility.ClearProgressBar();
string baseName = PtUtils.GetPtAssetBaseName(request.polyAsset);
result.root.name = baseName;
// Create the asset (delete it first if it exists).
if (File.Exists(assetFullPath))
{
AssetDatabase.DeleteAsset(assetLocalPath);
// If we are replacing an existing asset, we should rename the replacement to the new name,
// since the name reflects the identity of the asset. So if the user is importing the asset
// dog_a381b3g to replace what was previously cat_v81938.asset, the replacement file should
// be named dog_a381b3g.asset, not cat_v81938.asset.
assetLocalPath = PtUtils.GetDefaultPtAssetPath(request.polyAsset);
assetFullPath = PtUtils.ToAbsolutePath(assetLocalPath);
}
Directory.CreateDirectory(Path.GetDirectoryName(assetFullPath));
// Create the new PtAsset and fill it in.
AssetDatabase.CreateAsset(ScriptableObject.CreateInstance <PtAsset>(), assetLocalPath);
PtAsset newAsset = AssetDatabase.LoadAssetAtPath <PtAsset>(assetLocalPath);
newAsset.name = baseName;
newAsset.title = request.polyAsset.displayName ?? "";
newAsset.author = request.polyAsset.authorName ?? "";
newAsset.license = request.polyAsset.license;
newAsset.url = request.polyAsset.Url;
// Ensure the imported object has a PtAssetObject component which references the PtAsset.
result.root.AddComponent <PtAssetObject>().asset = newAsset;
// Add all the meshes to the PtAsset.
SaveMeshes(result.meshes, newAsset);
// If the asset has materials, save those to the PtAsset.
if (result.materials != null)
{
SaveMaterials(result.materials, newAsset);
}
// If the asset has textures, save those to the PtAsset.
if (result.textures != null)
{
SaveTextures(result.textures, newAsset);
}
// Reimport is required to ensure custom asset displays correctly.
AssetDatabase.ImportAsset(assetLocalPath);
GameObject newPrefab;
if (prefabToReplace)
{
// Replace the existing prefab with our new object, without breaking prefab connections.
newPrefab = PrefabUtility.ReplacePrefab(result.root, prefabToReplace, ReplacePrefabOptions.ReplaceNameBased);
AssetDatabase.RenameAsset(AssetDatabase.GetAssetPath(newPrefab), baseName);
}
else
{
// Create a new prefab.
// Prefab path is the same as the asset path but with the extension changed to '.prefab'.
string prefabLocalPath = Regex.Replace(assetLocalPath, "\\.asset$", ".prefab");
if (!prefabLocalPath.EndsWith(".prefab"))
{
Debug.LogErrorFormat("Error: failed to compute prefab path for {0}", assetLocalPath);
PtAnalytics.SendEvent(PtAnalytics.Action.IMPORT_FAILED, "Prefab path error");
return;
}
newPrefab = PrefabUtility.CreatePrefab(prefabLocalPath, result.root);
}
// Now ensure the asset points to the prefab.
newAsset.assetPrefab = newPrefab;
if (newAsset.assetPrefab == null)
{
Debug.LogErrorFormat("Could not get asset prefab reference for asset {0}", newAsset);
PtAnalytics.SendEvent(PtAnalytics.Action.IMPORT_FAILED, "Prefab ref error");
}
GameObject.DestroyImmediate(result.root);
AssetDatabase.Refresh();
if (request.options.alsoInstantiate)
{
PrefabUtility.InstantiatePrefab(newPrefab);
}
PtDebug.LogFormat("GLTF import complete: {0}", request);
PtAnalytics.SendEvent(PtAnalytics.Action.IMPORT_SUCCESSFUL, isGltf2 ? "GLTF2" : "GLTF1");
// If this is a third-party asset, we need to update the attributions file.
AttributionFileGenerator.Generate(/* showUi */ false);
EditorWindow.GetWindow <AssetBrowserWindow>().HandleAssetImported(request.polyAsset.name);
// Select the prefab in the editor so the user knows where it is.
AssetDatabase.Refresh();
Selection.activeObject = newPrefab;
EditorGUIUtility.PingObject(newPrefab);
}