feat: add batch Blueprint-to-C++ commandlet#14
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ethanfischer wants to merge 2 commits intoprotospatial:mainfrom
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feat: add batch Blueprint-to-C++ commandlet#14ethanfischer wants to merge 2 commits intoprotospatial:mainfrom
ethanfischer wants to merge 2 commits intoprotospatial:mainfrom
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…support Add Translate Entire Blueprint toolbar command for batch translation Add full support for Blueprint-level variables, local variables, and component overrides Add ClassItSelf graph type for class structure generation Improve Map key type extraction from Blueprint pin types Enhance component parent-child relationship detection Expand CodeGen_CPP.md with detailed guidance Update README with new features and improvements Fix compilation error: remove incorrect return statement in SaveGraphFilesOriginal
Add UN2CBatchBlueprintCommandlet for batch-converting Blueprints to C++ without requiring the editor UI. Features: - Discover Blueprints via Asset Registry with path filtering - Include/exclude specific Blueprints by name - Optional filtering for Widget and Animation Blueprints - Dry run mode to preview what would be converted - Cross-platform curl subprocess for LLM API calls (workaround for commandlet SSL/HTTP issues) - Support for ANTHROPIC_API_KEY env var or NodeToCode secrets file Usage: UnrealEditor-Cmd.exe Project.uproject -run=N2CBatchBlueprint [options] Options: -DryRun List Blueprints without converting -Path=/Game/... Root path to search -Include=BP1,BP2 Only convert these Blueprints -Exclude=BP1,BP2 Skip these Blueprints -ExcludeWidgets Skip Widget Blueprints -ExcludeAnimBP Skip Animation Blueprints Additional changes: - Export core classes with NODETOCODE_API for external module usage (FN2CNodeTranslator, FN2CNodeCollector, FN2CSerializer) - Fix ProcessN2CJson to invoke OnComplete callback in all code paths - Add AssetRegistry module dependency Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
Contributor
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Hey there! Thanks for putting in the effort to make this. Although I've already had this feature in the dev-2.0 branch, so I'd recommend giving that a try 😀 I'll be trying to polish up v2 here soon and then merging. No timelines though at the moment since work and life has been taking up most of my time. |
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Summary
UN2CBatchBlueprintCommandletfor batch-converting Blueprints to C++ from the command lineFN2CNodeTranslator,FN2CNodeCollector,FN2CSerializer) withNODETOCODE_APIfor external module usageProcessN2CJsonto invokeOnCompletecallback in all code pathsAssetRegistrymodule dependencyBatch Commandlet Features
Enables automated Blueprint-to-C++ conversion without requiring the editor UI:
Options:
-DryRun- List Blueprints without converting-Path=/Game/...- Root path to search (default: /Game/)-Include=BP1,BP2- Only convert these Blueprints-Exclude=BP1,BP2- Skip these Blueprints-ExcludeWidgets- Skip Widget Blueprints (WBP_* or UserWidget parents)-ExcludeAnimBP- Skip Animation Blueprints (ABP_* or AnimInstance parents)Environment:
ANTHROPIC_API_KEYenv var or NodeToCode secrets fileOutput:
Saved/NodeToCode/Translations/<BlueprintName>/<GraphName>.txtTechnical Notes
Uses curl subprocess for LLM API calls as a workaround for SSL/HTTP issues in commandlet mode (Unreal's HTTP module has issues outside the main editor process).
Test plan
-DryRunto verify Blueprint discovery🤖 Generated with Claude Code