public void Run(string nodeName, string nodeId, string connectionIdToNextNode, Dictionary <string, List <Asset> > groupedSources, List <string> alreadyCached, Action <string, string, Dictionary <string, List <Asset> >, List <string> > Output) { var usedCache = new List <string>(); var invalids = new List <string>(); foreach (var sources in groupedSources.Values) { foreach (var source in sources) { if (string.IsNullOrEmpty(source.importFrom)) { invalids.Add(source.absoluteAssetPath); } } } if (invalids.Any()) { throw new NodeException(string.Join(", ", invalids.ToArray()) + " are not imported yet. These assets need to be imported before prefabricated.", nodeId); } var recommendedPrefabOutputDirectoryPath = FileUtility.PathCombine(AssetBundleGraphSettings.PREFABRICATOR_CACHE_PLACE, nodeId, SystemDataUtility.GetCurrentPlatformKey()); var outputDict = new Dictionary <string, List <Asset> >(); var cachedOrGenerated = new List <string>(); foreach (var groupKey in groupedSources.Keys) { var inputSources = groupedSources[groupKey]; var recommendedPrefabPath = FileUtility.PathCombine(recommendedPrefabOutputDirectoryPath, groupKey); if (!recommendedPrefabPath.EndsWith(AssetBundleGraphSettings.UNITY_FOLDER_SEPARATOR.ToString())) { recommendedPrefabPath = recommendedPrefabPath + AssetBundleGraphSettings.UNITY_FOLDER_SEPARATOR.ToString(); } /* * ready input resource info for execute. not contains cache in this node. */ var assets = new List <DepreacatedAssetInfo>(); foreach (var assetData in inputSources) { var assetName = assetData.fileNameAndExtension; var assetType = assetData.assetType; var assetPath = assetData.importFrom; var assetDatabaseId = assetData.assetDatabaseId; assets.Add(new DepreacatedAssetInfo(assetName, assetType, assetPath, assetDatabaseId)); } // collect generated prefab path. var generated = new List <string>(); var outputSources = new List <Asset>(); /* * Prefabricate(GameObject baseObject, string prefabName, bool forceGenerate) method. */ Func <GameObject, string, bool, string> Prefabricate = (GameObject baseObject, string prefabName, bool forceGenerate) => { var newPrefabOutputPath = Path.Combine(recommendedPrefabPath, prefabName); if (forceGenerate || !SystemDataUtility.IsAllAssetsCachedAndUpdated(inputSources, alreadyCached, newPrefabOutputPath)) { // not cached, create new. UnityEngine.Object prefabFile = PrefabUtility.CreateEmptyPrefab(newPrefabOutputPath); // export prefab data. PrefabUtility.ReplacePrefab(baseObject, prefabFile); // save prefab. AssetDatabase.Refresh(ImportAssetOptions.ImportRecursive); AssetDatabase.SaveAssets(); generated.Add(newPrefabOutputPath); cachedOrGenerated.Add(newPrefabOutputPath); Debug.Log(nodeName + " created new prefab: " + newPrefabOutputPath); } else { // cached. usedCache.Add(newPrefabOutputPath); cachedOrGenerated.Add(newPrefabOutputPath); Debug.Log(nodeName + " used cached prefab: " + newPrefabOutputPath); } isPrefabricateFunctionCalled = true; return(newPrefabOutputPath); }; if (!Directory.Exists(recommendedPrefabPath)) { // create recommended directory. Directory.CreateDirectory(recommendedPrefabPath); } /* * execute inheritee's input method. */ try { CreatePrefab(nodeName, nodeId, groupKey, assets, recommendedPrefabPath, Prefabricate); } catch (Exception e) { Debug.LogError(nodeName + " Error:" + e); throw new NodeException(nodeName + " Error:" + e, nodeId); } if (!isPrefabricateFunctionCalled) { Debug.LogWarning(nodeName + ": Prefabricate delegate was not called. Prefab might not be created properly."); } /* * ready assets-output-data from this node to next output. * it contains "cached" or "generated as prefab" or "else" assets. * output all assets. */ var currentAssetsInThisNode = FileUtility.FilePathsInFolder(recommendedPrefabPath); foreach (var generatedCandidateAssetPath in currentAssetsInThisNode) { /* * candidate is new, regenerated prefab. */ if (generated.Contains(generatedCandidateAssetPath)) { var newAsset = Asset.CreateNewAssetWithImportPathAndStatus( generatedCandidateAssetPath, true, false ); outputSources.Add(newAsset); continue; } /* * candidate is not new prefab. */ var cachedPrefabAsset = Asset.CreateNewAssetWithImportPathAndStatus( generatedCandidateAssetPath, false, false ); outputSources.Add(cachedPrefabAsset); } /* * add current resources to next node's resources. */ outputSources.AddRange(inputSources); outputDict[groupKey] = outputSources; } // delete unused cached prefabs. var unusedCachePaths = alreadyCached.Except(cachedOrGenerated).Where(path => !FileUtility.IsMetaFile(path)).ToList(); foreach (var unusedCachePath in unusedCachePaths) { // unbundlize unused prefabricated cached asset. var assetImporter = AssetImporter.GetAtPath(unusedCachePath); assetImporter.assetBundleName = string.Empty; FileUtility.DeleteFileThenDeleteFolderIfEmpty(unusedCachePath); } Output(nodeId, connectionIdToNextNode, outputDict, usedCache); }