Unified, portable Unreal Engine MCP system plugin
Merge of the two project copies into one self-contained plugin (the superset: variable_op + variables.py, full pcg_op runtime/declarative/preset ops, the CreateWidgetFloatAnimation widget tool, and full Voxel graph authoring). Made fully project- and machine-agnostic — no hardcoded paths: - New src/projectPaths.js auto-detects the host .uproject (walk-up), project name, Editor build target, log file, and engine install (EngineAssociation via launcher manifest/registry, else installed-engine scan). All overridable via UE_* env vars. - Rewired buildOrchestrator/insights/launcher/insightsExporter/server.js and the Python workers (cpp_scaffold, live_coding, apply_graph, console) off the old C:/Github/ihy, IHY*, E:/UE_Versions and UE_5.7 literals onto the resolver. - Voxel made optional: Build.cs auto-detects the Voxel plugin (env UE_MCP_WITH_VOXEL override) and the C++ compiles to stubs under WITH_MCP_VOXEL, so the module builds in projects without Voxel; .uplugin marks Voxel optional. - De-branded the agent-gateway and docs; scrubbed a leaked API key; excluded node_modules/Binaries/Intermediate/__pycache__/secrets from the repo. Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
This commit is contained in:
Bonchellon
79
Source/UEBlueprintMCPEditor/Public/MCPCaptureLibrary.h
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79
Source/UEBlueprintMCPEditor/Public/MCPCaptureLibrary.h
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@ -0,0 +1,79 @@
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// Headless capture helpers for the UEBlueprintMCP plugin.
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//
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// Lets external agents SEE editor content WITHOUT opening any editor tab/window:
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// * RenderAssetThumbnailToPNG — renders ANY asset (StaticMesh, SkeletalMesh,
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// Material, Texture, Blueprint, Niagara, AnimSequence, Sound, ...) using the
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// editor's per-class thumbnail renderer. No asset editor needs to be open.
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// * CaptureEditorSceneToPNG — renders the current editor world from an
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// arbitrary camera via an offscreen SceneCaptureComponent2D. No level
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// viewport / PIE required.
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//
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// Both write a PNG to disk and return its absolute path. Called from Python via
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// unreal.MCPCaptureLibrary.
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#pragma once
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#include "CoreMinimal.h"
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#include "Kismet/BlueprintFunctionLibrary.h"
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#include "MCPCaptureLibrary.generated.h"
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UCLASS()
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class UEBLUEPRINTMCPEDITOR_API UMCPCaptureLibrary : public UBlueprintFunctionLibrary
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{
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GENERATED_BODY()
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public:
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/**
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* Render an asset's thumbnail to a PNG file, headlessly.
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* Works for every asset type that has a registered thumbnail renderer, which
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* is effectively all of them (meshes, materials, textures, blueprints,
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* niagara systems, anim sequences, sounds, data assets, ...). The asset
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* editor does NOT need to be open.
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*
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* @param AssetPath Object path, e.g. "/Game/Meshes/SM_Rock" (no class prefix needed).
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* @param OutputAbsPath Absolute directory to write into (created if missing).
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* @param FileNameNoExt File name WITHOUT extension. ".png" is appended.
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* @param Width Pixels, clamped [16, 2048].
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* @param Height Pixels, clamped [16, 2048].
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* @param OutFullPath On success, absolute path of the written PNG.
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* @param OutError On failure, a short description.
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*/
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UFUNCTION(BlueprintCallable, Category = "MCP|Capture",
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meta = (DisplayName = "Render Asset Thumbnail To PNG"))
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static bool RenderAssetThumbnailToPNG(
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const FString& AssetPath,
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const FString& OutputAbsPath,
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const FString& FileNameNoExt,
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int32 Width,
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int32 Height,
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FString& OutFullPath,
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FString& OutError
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);
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/**
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* Render the active editor world from an arbitrary camera to a PNG, headlessly,
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* using an offscreen SceneCaptureComponent2D. No level viewport is needed.
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*
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* @param Location World-space camera location.
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* @param Rotation World-space camera rotation (pitch/yaw/roll).
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* @param FOV Horizontal field of view in degrees (clamped [5, 170]).
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* @param OutputAbsPath Absolute directory to write into (created if missing).
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* @param FileNameNoExt File name WITHOUT extension. ".png" is appended.
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* @param Width Pixels, clamped [16, 4096].
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* @param Height Pixels, clamped [16, 4096].
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* @param OutFullPath On success, absolute path of the written PNG.
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* @param OutError On failure, a short description.
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*/
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UFUNCTION(BlueprintCallable, Category = "MCP|Capture",
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meta = (DisplayName = "Capture Editor Scene To PNG"))
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static bool CaptureEditorSceneToPNG(
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FVector Location,
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FRotator Rotation,
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float FOV,
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const FString& OutputAbsPath,
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const FString& FileNameNoExt,
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int32 Width,
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int32 Height,
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FString& OutFullPath,
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FString& OutError
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);
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};
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430
Source/UEBlueprintMCPEditor/Public/MCPGraphLibrary.h
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430
Source/UEBlueprintMCPEditor/Public/MCPGraphLibrary.h
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@ -0,0 +1,430 @@
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// Exposes K2 graph mutation to Python.
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//
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// In Python these are reachable as:
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// unreal.MCPGraphLibrary.spawn_call_function_node(bp, graph, owner_class, fn_name, pos)
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// unreal.MCPGraphLibrary.connect_pins(graph, from_id, "Then", to_id, "Exec")
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// etc.
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//
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// Every spawn returns the node's NodeGuid as a string. Python keeps a local
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// id -> NodeGuid map and passes the guid into connect_pins / set_pin_default.
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#pragma once
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#include "CoreMinimal.h"
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#include "Kismet/BlueprintFunctionLibrary.h"
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#include "MCPGraphLibrary.generated.h"
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class UBlueprint;
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class UWidgetBlueprint;
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class UWidget;
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class UEdGraph;
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class UEdGraphNode;
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class UEdGraphPin;
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class UScriptStruct;
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class UEnum;
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UCLASS()
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class UEBLUEPRINTMCPEDITOR_API UMCPGraphLibrary : public UBlueprintFunctionLibrary
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{
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GENERATED_BODY()
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public:
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// ====================================================================
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// Graph lookup
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// ====================================================================
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UFUNCTION(BlueprintCallable, Category = "MCP|Graph")
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static UEdGraph* FindEventGraph(UBlueprint* Blueprint);
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UFUNCTION(BlueprintCallable, Category = "MCP|Graph")
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static UEdGraph* FindFunctionGraph(UBlueprint* Blueprint, FName FunctionName);
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UFUNCTION(BlueprintCallable, Category = "MCP|Graph")
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static TArray<FString> ListNodeIds(UEdGraph* Graph);
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UFUNCTION(BlueprintCallable, Category = "MCP|Graph")
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static TArray<FString> ListPinsOnNode(UEdGraph* Graph, const FString& NodeId);
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UFUNCTION(BlueprintCallable, Category = "MCP|Graph")
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static int32 ClearGraph(UEdGraph* Graph);
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UFUNCTION(BlueprintCallable, Category = "MCP|Graph")
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static bool DeleteNode(UEdGraph* Graph, const FString& NodeId);
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// ====================================================================
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// Spawners — basic
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// ====================================================================
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UFUNCTION(BlueprintCallable, Category = "MCP|Spawn")
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static FString SpawnCallFunctionNode(UBlueprint* Blueprint, UEdGraph* Graph, UClass* FunctionOwnerClass, FName FunctionName, FVector2D Position);
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UFUNCTION(BlueprintCallable, Category = "MCP|Spawn")
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static FString SpawnEventNode(UBlueprint* Blueprint, UEdGraph* Graph, UClass* OwnerClass, FName EventName, FVector2D Position);
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UFUNCTION(BlueprintCallable, Category = "MCP|Spawn")
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static FString SpawnCustomEventNode(UBlueprint* Blueprint, UEdGraph* Graph, FName EventName, FVector2D Position);
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UFUNCTION(BlueprintCallable, Category = "MCP|Network")
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static bool SetCustomEventNetworkFlags(UBlueprint* Blueprint, UEdGraph* Graph, const FString& NodeIdOrEventName, FName Mode, bool bReliable);
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UFUNCTION(BlueprintCallable, Category = "MCP|Spawn")
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static FString SpawnComponentBoundEvent(UBlueprint* Blueprint, UEdGraph* Graph, FName ComponentName, FName DelegateName, FVector2D Position);
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UFUNCTION(BlueprintCallable, Category = "MCP|Spawn")
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static FString SpawnBranchNode(UBlueprint* Blueprint, UEdGraph* Graph, FVector2D Position);
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UFUNCTION(BlueprintCallable, Category = "MCP|Spawn")
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static FString SpawnSequenceNode(UBlueprint* Blueprint, UEdGraph* Graph, FVector2D Position, int32 OutputCount);
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UFUNCTION(BlueprintCallable, Category = "MCP|Spawn")
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static FString SpawnVariableGetNode(UBlueprint* Blueprint, UEdGraph* Graph, FName VariableName, FVector2D Position);
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UFUNCTION(BlueprintCallable, Category = "MCP|Spawn")
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static FString SpawnVariableSetNode(UBlueprint* Blueprint, UEdGraph* Graph, FName VariableName, FVector2D Position);
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UFUNCTION(BlueprintCallable, Category = "MCP|Spawn")
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static FString SpawnSelfNode(UBlueprint* Blueprint, UEdGraph* Graph, FVector2D Position);
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UFUNCTION(BlueprintCallable, Category = "MCP|Spawn")
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static FString SpawnCastNode(UBlueprint* Blueprint, UEdGraph* Graph, UClass* TargetClass, FVector2D Position);
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// ====================================================================
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// Spawners — flow / collections
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// ====================================================================
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UFUNCTION(BlueprintCallable, Category = "MCP|Spawn")
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static FString SpawnSwitchOnIntNode(UBlueprint* Blueprint, UEdGraph* Graph, FVector2D Position);
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UFUNCTION(BlueprintCallable, Category = "MCP|Spawn")
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static FString SpawnSwitchOnStringNode(UBlueprint* Blueprint, UEdGraph* Graph, FVector2D Position);
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UFUNCTION(BlueprintCallable, Category = "MCP|Spawn")
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static FString SpawnSwitchOnEnumNode(UBlueprint* Blueprint, UEdGraph* Graph, UEnum* EnumType, FVector2D Position);
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UFUNCTION(BlueprintCallable, Category = "MCP|Spawn")
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static FString SpawnMakeArrayNode(UBlueprint* Blueprint, UEdGraph* Graph, FVector2D Position);
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UFUNCTION(BlueprintCallable, Category = "MCP|Spawn")
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static FString SpawnMakeStructNode(UBlueprint* Blueprint, UEdGraph* Graph, UScriptStruct* StructType, FVector2D Position);
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UFUNCTION(BlueprintCallable, Category = "MCP|Spawn")
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static FString SpawnBreakStructNode(UBlueprint* Blueprint, UEdGraph* Graph, UScriptStruct* StructType, FVector2D Position);
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UFUNCTION(BlueprintCallable, Category = "MCP|Spawn")
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static FString SpawnSetFieldsInStructNode(UBlueprint* Blueprint, UEdGraph* Graph, UScriptStruct* StructType, FVector2D Position);
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/** Spawn a UK2Node_MacroInstance bound to one of the StandardMacros (ForLoop,
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* ForEachLoop, WhileLoop, DoOnce, Gate, FlipFlop, MultiGate, IsValid, DoN). */
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UFUNCTION(BlueprintCallable, Category = "MCP|Spawn")
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static FString SpawnStandardMacroNode(UBlueprint* Blueprint, UEdGraph* Graph, FName MacroName, FVector2D Position);
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UFUNCTION(BlueprintCallable, Category = "MCP|Spawn")
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static FString SpawnSpawnActorFromClassNode(UBlueprint* Blueprint, UEdGraph* Graph, FVector2D Position);
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UFUNCTION(BlueprintCallable, Category = "MCP|Spawn")
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static FString SpawnFormatTextNode(UBlueprint* Blueprint, UEdGraph* Graph, FVector2D Position);
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UFUNCTION(BlueprintCallable, Category = "MCP|Spawn")
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static FString SpawnGetSubsystemNode(UBlueprint* Blueprint, UEdGraph* Graph, UClass* SubsystemClass, FVector2D Position);
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UFUNCTION(BlueprintCallable, Category = "MCP|Spawn")
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static FString SpawnLoadAssetNode(UBlueprint* Blueprint, UEdGraph* Graph, FVector2D Position);
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// ====================================================================
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// Spawners — Tier 2 (knot/comment/enum literal/class defaults/return/arrays)
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// ====================================================================
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UFUNCTION(BlueprintCallable, Category = "MCP|Spawn")
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static FString SpawnKnotNode(UBlueprint* Blueprint, UEdGraph* Graph, FVector2D Position);
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UFUNCTION(BlueprintCallable, Category = "MCP|Spawn")
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static FString SpawnCommentNode(UBlueprint* Blueprint, UEdGraph* Graph, FVector2D Position, FVector2D Size, const FString& Comment);
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UFUNCTION(BlueprintCallable, Category = "MCP|Spawn")
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static FString SpawnEnumLiteralNode(UBlueprint* Blueprint, UEdGraph* Graph, UEnum* EnumType, FVector2D Position);
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UFUNCTION(BlueprintCallable, Category = "MCP|Spawn")
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static FString SpawnGetClassDefaultsNode(UBlueprint* Blueprint, UEdGraph* Graph, UClass* TargetClass, FVector2D Position);
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UFUNCTION(BlueprintCallable, Category = "MCP|Spawn")
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static FString SpawnFunctionResultNode(UBlueprint* Blueprint, UEdGraph* Graph, FVector2D Position);
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UFUNCTION(BlueprintCallable, Category = "MCP|Spawn")
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static FString SpawnGetArrayItemNode(UBlueprint* Blueprint, UEdGraph* Graph, FVector2D Position);
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UFUNCTION(BlueprintCallable, Category = "MCP|Spawn")
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static FString SpawnPromotableOperatorNode(UBlueprint* Blueprint, UEdGraph* Graph, FName OperatorName, FVector2D Position);
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/** Add a new case pin to a SwitchInt/SwitchString/SwitchEnum node. */
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UFUNCTION(BlueprintCallable, Category = "MCP|Edit")
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static bool AddCasePinToSwitch(UEdGraph* Graph, const FString& NodeId);
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/** Set FormatText template AND reconstruct so {arg} pins appear. */
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UFUNCTION(BlueprintCallable, Category = "MCP|Edit")
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static bool FormatTextSetFormat(UEdGraph* Graph, const FString& NodeId, const FString& Format);
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/** Force a node to ReconstructNode() (e.g. after toggling pure/latent). */
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UFUNCTION(BlueprintCallable, Category = "MCP|Edit")
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static bool ReconstructNode(UEdGraph* Graph, const FString& NodeId);
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// ====================================================================
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// Delegates
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// ====================================================================
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/** Bind an existing event to a component's multicast delegate.
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* target = "ComponentName.DelegateName". */
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UFUNCTION(BlueprintCallable, Category = "MCP|Delegate")
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static FString SpawnBindDelegateNode(UBlueprint* Blueprint, UEdGraph* Graph, FName ComponentName, FName DelegateName, FVector2D Position);
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UFUNCTION(BlueprintCallable, Category = "MCP|Delegate")
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static FString SpawnUnbindDelegateNode(UBlueprint* Blueprint, UEdGraph* Graph, FName ComponentName, FName DelegateName, FVector2D Position);
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UFUNCTION(BlueprintCallable, Category = "MCP|Delegate")
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static FString SpawnCallDelegateNode(UBlueprint* Blueprint, UEdGraph* Graph, FName DispatcherName, FVector2D Position);
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/** AssignDelegate = AddDelegate + CustomEvent — a sugar combo node. */
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UFUNCTION(BlueprintCallable, Category = "MCP|Delegate")
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||||
static FString SpawnAssignDelegateNode(UBlueprint* Blueprint, UEdGraph* Graph, FName ComponentName, FName DelegateName, FVector2D Position);
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||||
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||||
/** Add an Event Dispatcher (multicast delegate variable) with no params. */
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||||
UFUNCTION(BlueprintCallable, Category = "MCP|Authoring")
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||||
static bool AddEventDispatcher(UBlueprint* Blueprint, FName DispatcherName);
|
||||
|
||||
// ====================================================================
|
||||
// Edges & defaults
|
||||
// ====================================================================
|
||||
UFUNCTION(BlueprintCallable, Category = "MCP|Edges")
|
||||
static bool ConnectPins(UEdGraph* Graph, const FString& FromNodeId, FName FromPin, const FString& ToNodeId, FName ToPin);
|
||||
|
||||
UFUNCTION(BlueprintCallable, Category = "MCP|Edges")
|
||||
static bool BreakLink(UEdGraph* Graph, const FString& FromNodeId, FName FromPin, const FString& ToNodeId, FName ToPin);
|
||||
|
||||
UFUNCTION(BlueprintCallable, Category = "MCP|Edges")
|
||||
static bool BreakAllNodeLinks(UEdGraph* Graph, const FString& NodeId);
|
||||
|
||||
UFUNCTION(BlueprintCallable, Category = "MCP|Edges")
|
||||
static bool SetPinDefault(UEdGraph* Graph, const FString& NodeId, FName PinName, const FString& Value);
|
||||
|
||||
// ====================================================================
|
||||
// BP-level authoring
|
||||
// ====================================================================
|
||||
UFUNCTION(BlueprintCallable, Category = "MCP|Authoring")
|
||||
static UEdGraph* AddFunctionGraph(UBlueprint* Blueprint, FName FunctionName);
|
||||
|
||||
UFUNCTION(BlueprintCallable, Category = "MCP|Authoring")
|
||||
static UEdGraph* AddMacroGraph(UBlueprint* Blueprint, FName MacroName);
|
||||
|
||||
UFUNCTION(BlueprintCallable, Category = "MCP|Authoring")
|
||||
static bool AddInterface(UBlueprint* Blueprint, const FString& InterfacePath);
|
||||
|
||||
UFUNCTION(BlueprintCallable, Category = "MCP|Authoring")
|
||||
static bool SetVariableDefaultValue(UBlueprint* Blueprint, FName VariableName, const FString& Value);
|
||||
|
||||
UFUNCTION(BlueprintCallable, Category = "MCP|Authoring")
|
||||
static bool SetVariableMetadata(UBlueprint* Blueprint, FName VariableName, bool bInstanceEditable, bool bExposeOnSpawn, const FString& Category, const FString& Tooltip);
|
||||
|
||||
UFUNCTION(BlueprintCallable, Category = "MCP|Authoring")
|
||||
static bool AddLocalVariable(UBlueprint* Blueprint, FName FunctionName, FName VariableName, const FString& TypeSpec, const FString& DefaultValue);
|
||||
|
||||
UFUNCTION(BlueprintCallable, Category = "MCP|Authoring")
|
||||
static FString AddComponentToBlueprint(UBlueprint* Blueprint, UClass* ComponentClass, FName ComponentName);
|
||||
|
||||
UFUNCTION(BlueprintCallable, Category = "MCP|Authoring")
|
||||
static bool AddMemberVariable(UBlueprint* Blueprint, FName VariableName, const FString& TypeSpec);
|
||||
|
||||
UFUNCTION(BlueprintCallable, Category = "MCP|Authoring")
|
||||
static bool RemoveComponent(UBlueprint* Blueprint, FName ComponentName);
|
||||
|
||||
UFUNCTION(BlueprintCallable, Category = "MCP|Authoring")
|
||||
static bool AttachComponent(UBlueprint* Blueprint, FName ChildName, FName ParentName, FName SocketName);
|
||||
|
||||
UFUNCTION(BlueprintCallable, Category = "MCP|Authoring")
|
||||
static bool SetRootComponent(UBlueprint* Blueprint, FName ComponentName);
|
||||
|
||||
UFUNCTION(BlueprintCallable, Category = "MCP|Authoring")
|
||||
static bool SetComponentProperty(UBlueprint* Blueprint, FName ComponentName, FName PropertyName, const FString& Value);
|
||||
|
||||
UFUNCTION(BlueprintCallable, Category = "MCP|Authoring")
|
||||
static bool SetComponentTransform(UBlueprint* Blueprint, FName ComponentName, FVector Location, FRotator Rotation, FVector Scale);
|
||||
|
||||
UFUNCTION(BlueprintCallable, Category = "MCP|Authoring")
|
||||
static bool ConfigureBoxComponent(UBlueprint* Blueprint, FName ComponentName, FVector Extent, FName CollisionProfile);
|
||||
|
||||
UFUNCTION(BlueprintCallable, Category = "MCP|Authoring")
|
||||
static bool RenameVariable(UBlueprint* Blueprint, FName OldName, FName NewName);
|
||||
|
||||
UFUNCTION(BlueprintCallable, Category = "MCP|Authoring")
|
||||
static bool DeleteVariable(UBlueprint* Blueprint, FName VariableName);
|
||||
|
||||
UFUNCTION(BlueprintCallable, Category = "MCP|Authoring")
|
||||
static bool RenameFunction(UBlueprint* Blueprint, FName OldName, FName NewName);
|
||||
|
||||
UFUNCTION(BlueprintCallable, Category = "MCP|Authoring")
|
||||
static bool RemoveFunctionGraph(UBlueprint* Blueprint, FName FunctionName);
|
||||
|
||||
UFUNCTION(BlueprintCallable, Category = "MCP|Authoring")
|
||||
static bool RemoveMacroGraph(UBlueprint* Blueprint, FName MacroName);
|
||||
|
||||
/** Add an input/output parameter to a user function. Direction: "input"/"output". */
|
||||
UFUNCTION(BlueprintCallable, Category = "MCP|Authoring")
|
||||
static bool AddFunctionParameter(UBlueprint* Blueprint, FName FunctionName, FName ParamName, const FString& TypeSpec, const FString& Direction);
|
||||
|
||||
UFUNCTION(BlueprintCallable, Category = "MCP|Authoring")
|
||||
static bool RemoveFunctionParameter(UBlueprint* Blueprint, FName FunctionName, FName ParamName);
|
||||
|
||||
// ====================================================================
|
||||
// UMG Designer / WidgetTree
|
||||
// ====================================================================
|
||||
UFUNCTION(BlueprintCallable, Category = "MCP|WidgetTree")
|
||||
static FString DescribeWidgetTreeJson(UWidgetBlueprint* Blueprint);
|
||||
|
||||
UFUNCTION(BlueprintCallable, Category = "MCP|WidgetTree")
|
||||
static FString GetWidgetPropertiesJson(UWidgetBlueprint* Blueprint, FName WidgetName);
|
||||
|
||||
UFUNCTION(BlueprintCallable, Category = "MCP|WidgetTree")
|
||||
static FString GetWidgetSlotPropertiesJson(UWidgetBlueprint* Blueprint, FName WidgetName);
|
||||
|
||||
UFUNCTION(BlueprintCallable, Category = "MCP|WidgetTree")
|
||||
static FString AddWidgetToTree(UWidgetBlueprint* Blueprint, UClass* WidgetClass, FName WidgetName, FName ParentName, int32 Index, bool bIsVariable);
|
||||
|
||||
UFUNCTION(BlueprintCallable, Category = "MCP|WidgetTree")
|
||||
static bool RemoveWidgetFromTree(UWidgetBlueprint* Blueprint, FName WidgetName);
|
||||
|
||||
UFUNCTION(BlueprintCallable, Category = "MCP|WidgetTree")
|
||||
static bool RenameWidgetInTree(UWidgetBlueprint* Blueprint, FName OldName, FName NewName);
|
||||
|
||||
UFUNCTION(BlueprintCallable, Category = "MCP|WidgetTree")
|
||||
static bool MoveWidgetInTree(UWidgetBlueprint* Blueprint, FName WidgetName, FName NewParentName, int32 Index);
|
||||
|
||||
UFUNCTION(BlueprintCallable, Category = "MCP|WidgetTree")
|
||||
static bool SetRootWidget(UWidgetBlueprint* Blueprint, FName WidgetName);
|
||||
|
||||
UFUNCTION(BlueprintCallable, Category = "MCP|WidgetTree")
|
||||
static bool SetWidgetIsVariable(UWidgetBlueprint* Blueprint, FName WidgetName, bool bIsVariable);
|
||||
|
||||
UFUNCTION(BlueprintCallable, Category = "MCP|WidgetTree")
|
||||
static bool SetWidgetProperty(UWidgetBlueprint* Blueprint, FName WidgetName, FName PropertyName, const FString& Value);
|
||||
|
||||
UFUNCTION(BlueprintCallable, Category = "MCP|WidgetTree")
|
||||
static bool SetWidgetSlotProperty(UWidgetBlueprint* Blueprint, FName WidgetName, FName PropertyName, const FString& Value);
|
||||
|
||||
UFUNCTION(BlueprintCallable, Category = "MCP|WidgetTree")
|
||||
static bool SetCanvasSlotLayout(UWidgetBlueprint* Blueprint, FName WidgetName, FVector2D Position, FVector2D Size, FVector2D AnchorsMinimum, FVector2D AnchorsMaximum, FVector2D Alignment, bool bAutoSize, int32 ZOrder);
|
||||
|
||||
UFUNCTION(BlueprintCallable, Category = "MCP|WidgetTree")
|
||||
static bool SetNamedSlotContent(UWidgetBlueprint* Blueprint, FName HostWidgetName, FName SlotName, FName ContentWidgetName);
|
||||
|
||||
UFUNCTION(BlueprintCallable, Category = "MCP|WidgetTree")
|
||||
static bool ClearNamedSlotContent(UWidgetBlueprint* Blueprint, FName HostWidgetName, FName SlotName);
|
||||
|
||||
UFUNCTION(BlueprintCallable, Category = "MCP|WidgetTree")
|
||||
static bool SetDesiredFocusWidget(UWidgetBlueprint* Blueprint, FName WidgetName);
|
||||
|
||||
/** Create a UMG WidgetAnimation that keys a single float property (e.g. RenderOpacity)
|
||||
* on WidgetName. Times (seconds) and Values are parallel arrays — each pair is one
|
||||
* linear key. The animation is added to the WidgetBlueprint's Animations array; loop
|
||||
* is controlled at PlayAnimation time (NumLoopsToPlay=0). Returns false on bad input
|
||||
* or if an animation with AnimName already exists. */
|
||||
UFUNCTION(BlueprintCallable, Category = "MCP|WidgetTree")
|
||||
static bool CreateWidgetFloatAnimation(UWidgetBlueprint* Blueprint, FName AnimName, FName WidgetName, FName PropertyName, const TArray<float>& Times, const TArray<float>& Values);
|
||||
|
||||
// ====================================================================
|
||||
// Compile / introspect
|
||||
// ====================================================================
|
||||
UFUNCTION(BlueprintCallable, Category = "MCP|Asset")
|
||||
static bool CompileAndSaveBlueprint(UBlueprint* Blueprint);
|
||||
|
||||
UFUNCTION(BlueprintCallable, Category = "MCP|Asset")
|
||||
static TArray<FString> GetCompileErrors(UBlueprint* Blueprint);
|
||||
|
||||
/** Compile + capture FCompilerResultsLog. Returns "SEV|NodeName|Message" per entry. */
|
||||
UFUNCTION(BlueprintCallable, Category = "MCP|Asset")
|
||||
static TArray<FString> CompileWithMessages(UBlueprint* Blueprint);
|
||||
|
||||
/** Dump entire graph as JSON string round-trippable into apply_graph NodeSpec. */
|
||||
UFUNCTION(BlueprintCallable, Category = "MCP|Asset")
|
||||
static FString DumpGraphToJson(UEdGraph* Graph);
|
||||
|
||||
// ====================================================================
|
||||
// Discovery — Pipeline v0.3
|
||||
// ====================================================================
|
||||
/** List all graphs on a Blueprint. Returns JSON: {event:[], functions:[], macros:[], delegates:[]}. */
|
||||
UFUNCTION(BlueprintCallable, Category = "MCP|Discover")
|
||||
static FString ListGraphsJson(UBlueprint* Blueprint);
|
||||
|
||||
/** Full BP overview: parent, interfaces, vars, components (SCS tree), functions, dispatchers. JSON. */
|
||||
UFUNCTION(BlueprintCallable, Category = "MCP|Discover")
|
||||
static FString DescribeBlueprintJson(UBlueprint* Blueprint);
|
||||
|
||||
/** Currently selected nodes in the open BP editor for `Blueprint`. JSON list of NodeGuid strings + per-node info. */
|
||||
UFUNCTION(BlueprintCallable, Category = "MCP|Discover")
|
||||
static FString GetSelectedNodesJson(UBlueprint* Blueprint);
|
||||
|
||||
/** All currently-open Blueprint editors (paths). */
|
||||
UFUNCTION(BlueprintCallable, Category = "MCP|Discover")
|
||||
static TArray<FString> ListOpenBlueprints();
|
||||
|
||||
/** For a UK2Node_CallFunction by guid, return {owner_class, function, source_bp_path?, native?} JSON. */
|
||||
UFUNCTION(BlueprintCallable, Category = "MCP|Discover")
|
||||
static FString ResolveFunctionSourceJson(UEdGraph* Graph, const FString& NodeId);
|
||||
|
||||
/** All node guids in this BP that reference variable `Name`. JSON list grouped by graph. */
|
||||
UFUNCTION(BlueprintCallable, Category = "MCP|Discover")
|
||||
static FString FindVariableReferencesJson(UBlueprint* Blueprint, FName VariableName);
|
||||
|
||||
/** All call sites of `FunctionName` (defined on Blueprint or external) within this BP. JSON. */
|
||||
UFUNCTION(BlueprintCallable, Category = "MCP|Discover")
|
||||
static FString FindFunctionReferencesJson(UBlueprint* Blueprint, FName FunctionName);
|
||||
|
||||
/** AssetRegistry-driven BP search by parent class path. Returns list of BP paths. */
|
||||
UFUNCTION(BlueprintCallable, Category = "MCP|Discover")
|
||||
static TArray<FString> FindBlueprintsByParent(const FString& ParentClassPath);
|
||||
|
||||
/** Hard-referenced assets of this BP (asset registry). */
|
||||
UFUNCTION(BlueprintCallable, Category = "MCP|Discover")
|
||||
static TArray<FString> GetReferencedAssets(const FString& AssetPath);
|
||||
|
||||
/** Reverse: assets that reference this BP. */
|
||||
UFUNCTION(BlueprintCallable, Category = "MCP|Discover")
|
||||
static TArray<FString> GetReferencersOfAsset(const FString& AssetPath);
|
||||
|
||||
// ====================================================================
|
||||
// Editing — single-node operations
|
||||
// ====================================================================
|
||||
/** Move nodes by guid to new positions. positions: array of {guid,x,y} encoded as parallel arrays. */
|
||||
UFUNCTION(BlueprintCallable, Category = "MCP|Edit")
|
||||
static int32 MoveNodes(UEdGraph* Graph, const TArray<FString>& NodeIds, const TArray<FVector2D>& Positions);
|
||||
|
||||
UFUNCTION(BlueprintCallable, Category = "MCP|Edit")
|
||||
static bool ResizeCommentNode(UEdGraph* Graph, const FString& NodeId, FVector2D Size);
|
||||
|
||||
UFUNCTION(BlueprintCallable, Category = "MCP|Edit")
|
||||
static bool SetNodeComment(UEdGraph* Graph, const FString& NodeId, const FString& Comment, bool bCommentBubbleVisible);
|
||||
|
||||
// ====================================================================
|
||||
// Navigation — open editors, focus nodes
|
||||
// ====================================================================
|
||||
UFUNCTION(BlueprintCallable, Category = "MCP|Navigate")
|
||||
static bool OpenBlueprintEditor(UBlueprint* Blueprint);
|
||||
|
||||
UFUNCTION(BlueprintCallable, Category = "MCP|Navigate")
|
||||
static bool OpenGraphInEditor(UBlueprint* Blueprint, UEdGraph* Graph);
|
||||
|
||||
UFUNCTION(BlueprintCallable, Category = "MCP|Navigate")
|
||||
static bool JumpToNodeInEditor(UBlueprint* Blueprint, UEdGraph* Graph, const FString& NodeId);
|
||||
|
||||
UFUNCTION(BlueprintCallable, Category = "MCP|Introspect")
|
||||
static TArray<FString> ListFunctionsOnClass(UClass* Class);
|
||||
|
||||
UFUNCTION(BlueprintCallable, Category = "MCP|Introspect")
|
||||
static TArray<FString> ListPropertiesOnClass(UClass* Class);
|
||||
|
||||
UFUNCTION(BlueprintCallable, Category = "MCP|Introspect")
|
||||
static TArray<FString> ListDelegatesOnClass(UClass* Class);
|
||||
|
||||
UFUNCTION(BlueprintCallable, Category = "MCP|Introspect")
|
||||
static FString GetPinType(UClass* OwnerClass, FName FunctionName, FName PinName);
|
||||
|
||||
private:
|
||||
static UEdGraphNode* FindNodeByGuid(UEdGraph* Graph, const FString& NodeId);
|
||||
static UEdGraphPin* FindPinByName(UEdGraphNode* Node, const FName& PinName);
|
||||
static class USCS_Node* FindSCSNode(UBlueprint* Blueprint, FName ComponentName);
|
||||
|
||||
template <typename TNode>
|
||||
static TNode* PlaceNode(UEdGraph* Graph, FVector2D Position);
|
||||
};
|
||||
28
Source/UEBlueprintMCPEditor/Public/MCPMaterialLibrary.h
Normal file
28
Source/UEBlueprintMCPEditor/Public/MCPMaterialLibrary.h
Normal file
@ -0,0 +1,28 @@
|
||||
#pragma once
|
||||
|
||||
#include "CoreMinimal.h"
|
||||
#include "Kismet/BlueprintFunctionLibrary.h"
|
||||
#include "MCPMaterialLibrary.generated.h"
|
||||
|
||||
class UMaterialExpression;
|
||||
class UMaterial;
|
||||
class UMaterialFunction;
|
||||
|
||||
UCLASS()
|
||||
class UEBLUEPRINTMCPEDITOR_API UMCPMaterialLibrary : public UBlueprintFunctionLibrary
|
||||
{
|
||||
GENERATED_BODY()
|
||||
|
||||
public:
|
||||
UFUNCTION(BlueprintCallable, Category = "MCP|Material")
|
||||
static TArray<UMaterialExpression*> GetMaterialExpressions(UObject* MaterialOrFunction);
|
||||
|
||||
UFUNCTION(BlueprintCallable, Category = "MCP|Material")
|
||||
static UMaterialExpression* FindMaterialExpression(UObject* MaterialOrFunction, const FString& NodeId);
|
||||
|
||||
UFUNCTION(BlueprintCallable, Category = "MCP|Material")
|
||||
static FString DumpMaterialGraphToJson(UObject* MaterialOrFunction);
|
||||
|
||||
UFUNCTION(BlueprintCallable, Category = "MCP|Material")
|
||||
static FString ConnectMaterialExpressionsRaw(UObject* MaterialOrFunction, UMaterialExpression* FromExpression, const FString& FromOutput, UMaterialExpression* ToExpression, const FString& ToInput);
|
||||
};
|
||||
69
Source/UEBlueprintMCPEditor/Public/MCPNiagaraLibrary.h
Normal file
69
Source/UEBlueprintMCPEditor/Public/MCPNiagaraLibrary.h
Normal file
@ -0,0 +1,69 @@
|
||||
#pragma once
|
||||
|
||||
#include "CoreMinimal.h"
|
||||
#include "Kismet/BlueprintFunctionLibrary.h"
|
||||
#include "MCPNiagaraLibrary.generated.h"
|
||||
|
||||
class UNiagaraSystem;
|
||||
class UNiagaraEmitter;
|
||||
class UNiagaraScript;
|
||||
class UNiagaraRendererProperties;
|
||||
|
||||
/**
|
||||
* Editor-only helpers wrapping Niagara authoring APIs for the MCP server.
|
||||
* All methods are no-ops/return defaults outside the editor.
|
||||
*/
|
||||
UCLASS()
|
||||
class UMCPNiagaraLibrary : public UBlueprintFunctionLibrary
|
||||
{
|
||||
GENERATED_BODY()
|
||||
|
||||
public:
|
||||
/** Create an empty UNiagaraSystem asset at the given /Game/... path. */
|
||||
UFUNCTION(BlueprintCallable, Category = "MCP|Niagara")
|
||||
static bool CreateNiagaraSystem(const FString& PackagePath);
|
||||
|
||||
/** List emitter handle names on the system. */
|
||||
UFUNCTION(BlueprintCallable, Category = "MCP|Niagara")
|
||||
static TArray<FString> GetEmitterHandleNames(UNiagaraSystem* System);
|
||||
|
||||
/** Add an emitter (asset) to the system. Returns the new handle name or empty on failure. */
|
||||
UFUNCTION(BlueprintCallable, Category = "MCP|Niagara")
|
||||
static FString AddEmitterToSystem(UNiagaraSystem* System, UNiagaraEmitter* SourceEmitter, const FString& EmitterName);
|
||||
|
||||
/** Remove an emitter handle (by handle name) from the system. */
|
||||
UFUNCTION(BlueprintCallable, Category = "MCP|Niagara")
|
||||
static bool RemoveEmitterFromSystem(UNiagaraSystem* System, const FString& EmitterName);
|
||||
|
||||
/**
|
||||
* List module nodes (function-call nodes) in a stack group.
|
||||
* GroupName: EmitterSpawn | EmitterUpdate | ParticleSpawn | ParticleUpdate | SystemSpawn | SystemUpdate
|
||||
* EmitterName ignored for SystemSpawn/SystemUpdate.
|
||||
* Returns module names in evaluation order.
|
||||
*/
|
||||
UFUNCTION(BlueprintCallable, Category = "MCP|Niagara")
|
||||
static TArray<FString> ListModules(UNiagaraSystem* System, const FString& EmitterName, const FString& GroupName);
|
||||
|
||||
/**
|
||||
* Insert a module script into the stack group. Index = -1 appends.
|
||||
* Returns the spawned module's function name (used as ModuleName for subsequent ops), or empty on failure.
|
||||
*/
|
||||
UFUNCTION(BlueprintCallable, Category = "MCP|Niagara")
|
||||
static FString AddModuleToStack(UNiagaraSystem* System, const FString& EmitterName, const FString& GroupName, UNiagaraScript* ModuleScript, int32 Index);
|
||||
|
||||
/** Remove a module node from the stack group by name. */
|
||||
UFUNCTION(BlueprintCallable, Category = "MCP|Niagara")
|
||||
static bool RemoveModuleFromStack(UNiagaraSystem* System, const FString& EmitterName, const FString& GroupName, const FString& ModuleName);
|
||||
|
||||
/** Add a renderer (UNiagaraRendererProperties subclass) to an emitter. Returns the renderer class name or empty. */
|
||||
UFUNCTION(BlueprintCallable, Category = "MCP|Niagara")
|
||||
static FString AddRendererToEmitter(UNiagaraSystem* System, const FString& EmitterName, UClass* RendererClass);
|
||||
|
||||
/** Remove all renderers of a given class from an emitter. Returns count removed. */
|
||||
UFUNCTION(BlueprintCallable, Category = "MCP|Niagara")
|
||||
static int32 RemoveRenderersFromEmitter(UNiagaraSystem* System, const FString& EmitterName, UClass* RendererClass);
|
||||
|
||||
/** Recompile the Niagara system (and its emitters). */
|
||||
UFUNCTION(BlueprintCallable, Category = "MCP|Niagara")
|
||||
static bool RequestCompile(UNiagaraSystem* System);
|
||||
};
|
||||
69
Source/UEBlueprintMCPEditor/Public/MCPVoxelGraphLibrary.h
Normal file
69
Source/UEBlueprintMCPEditor/Public/MCPVoxelGraphLibrary.h
Normal file
@ -0,0 +1,69 @@
|
||||
#pragma once
|
||||
|
||||
#include "CoreMinimal.h"
|
||||
#include "Kismet/BlueprintFunctionLibrary.h"
|
||||
#include "MCPVoxelGraphLibrary.generated.h"
|
||||
|
||||
class UEdGraph;
|
||||
|
||||
UCLASS()
|
||||
class UEBLUEPRINTMCPEDITOR_API UMCPVoxelGraphLibrary : public UBlueprintFunctionLibrary
|
||||
{
|
||||
GENERATED_BODY()
|
||||
|
||||
public:
|
||||
UFUNCTION(BlueprintCallable, Category = "MCP|VoxelGraph")
|
||||
static bool IsVoxelGraphAsset(UObject* Asset);
|
||||
|
||||
UFUNCTION(BlueprintCallable, Category = "MCP|VoxelGraph")
|
||||
static FString ListTerminalGraphsJson(UObject* Asset);
|
||||
|
||||
UFUNCTION(BlueprintCallable, Category = "MCP|VoxelGraph")
|
||||
static UEdGraph* FindTerminalEdGraph(UObject* Asset, const FString& Terminal);
|
||||
|
||||
UFUNCTION(BlueprintCallable, Category = "MCP|VoxelGraph")
|
||||
static FString DumpTerminalGraphJson(UObject* Asset, const FString& Terminal);
|
||||
|
||||
UFUNCTION(BlueprintCallable, Category = "MCP|VoxelGraph")
|
||||
static FString GetSelectedNodesJson(UObject* Asset, const FString& Terminal);
|
||||
|
||||
UFUNCTION(BlueprintCallable, Category = "MCP|VoxelGraph")
|
||||
static FString SpawnCommentNode(UEdGraph* Graph, FVector2D Position, FVector2D Size, const FString& Comment, FLinearColor Color);
|
||||
|
||||
// Returns a JSON catalogue of every spawnable Voxel node (struct nodes + function-library nodes).
|
||||
// Filter is an optional case-insensitive substring matched against id / display name / category.
|
||||
UFUNCTION(BlueprintCallable, Category = "MCP|VoxelGraph")
|
||||
static FString ListNodeTypesJson(const FString& Filter, int32 Limit);
|
||||
|
||||
// Spawns a functional Voxel node (UVoxelGraphNode_Struct) identified by NodeId
|
||||
// (struct name, struct path, display name, or "Library.Function" for function nodes).
|
||||
// Returns the new node GUID as string, or empty on failure.
|
||||
UFUNCTION(BlueprintCallable, Category = "MCP|VoxelGraph")
|
||||
static FString SpawnStructNode(UEdGraph* Graph, const FString& NodeId, FVector2D Position);
|
||||
|
||||
// Registers a graph property and returns its new GUID as JSON {ok, guid, name, type}.
|
||||
// Kind: "parameter" (graph parameter), "input"/"output" (function in/out), "local" (local variable).
|
||||
// TypeStr: float|double|int|bool|vector2d|vector|color|name (defaults to float).
|
||||
UFUNCTION(BlueprintCallable, Category = "MCP|VoxelGraph")
|
||||
static FString AddGraphPropertyJson(UObject* Asset, const FString& Terminal, const FString& Kind, const FString& Name, const FString& TypeStr, const FString& Category);
|
||||
|
||||
// Lists graph properties of the given Kind as JSON {ok, properties:[{guid,name,type,category}]}.
|
||||
UFUNCTION(BlueprintCallable, Category = "MCP|VoxelGraph")
|
||||
static FString ListGraphPropertiesJson(UObject* Asset, const FString& Terminal, const FString& Kind);
|
||||
|
||||
// Spawns a usage node for an existing property (Ref = guid or name). bDeclaration only matters
|
||||
// for Kind "local" (declaration vs usage). Returns the new node GUID, or empty on failure.
|
||||
UFUNCTION(BlueprintCallable, Category = "MCP|VoxelGraph")
|
||||
static FString SpawnPropertyNode(UEdGraph* Graph, const FString& Kind, const FString& Ref, FVector2D Position, bool bDeclaration);
|
||||
|
||||
// Spawns a "Call Function" node for a function terminal graph (FunctionRef = terminal guid or name).
|
||||
// Returns the new node GUID, or empty on failure.
|
||||
UFUNCTION(BlueprintCallable, Category = "MCP|VoxelGraph")
|
||||
static FString SpawnCallFunctionNode(UEdGraph* Graph, const FString& FunctionRef, FVector2D Position);
|
||||
|
||||
UFUNCTION(BlueprintCallable, Category = "MCP|VoxelGraph")
|
||||
static bool NotifyGraphChanged(UEdGraph* Graph, bool bCompile);
|
||||
|
||||
UFUNCTION(BlueprintCallable, Category = "MCP|VoxelGraph")
|
||||
static bool OpenVoxelGraphAsset(UObject* Asset);
|
||||
};
|
||||
42
Source/UEBlueprintMCPEditor/Public/MCPWidgetRenderLibrary.h
Normal file
42
Source/UEBlueprintMCPEditor/Public/MCPWidgetRenderLibrary.h
Normal file
@ -0,0 +1,42 @@
|
||||
// Vision-loop helper for the UEBlueprintMCP plugin.
|
||||
// Renders a UMG WidgetBlueprint to a PNG file so external agents can SEE
|
||||
// what they just authored. Called from Python via unreal.MCPWidgetRenderLibrary.
|
||||
#pragma once
|
||||
|
||||
#include "CoreMinimal.h"
|
||||
#include "Kismet/BlueprintFunctionLibrary.h"
|
||||
#include "MCPWidgetRenderLibrary.generated.h"
|
||||
|
||||
class UUserWidget;
|
||||
|
||||
UCLASS()
|
||||
class UEBLUEPRINTMCPEDITOR_API UMCPWidgetRenderLibrary : public UBlueprintFunctionLibrary
|
||||
{
|
||||
GENERATED_BODY()
|
||||
|
||||
public:
|
||||
/**
|
||||
* Render a UserWidget class to a PNG file on disk.
|
||||
* Returns true on success and fills OutFullPath with the absolute file path.
|
||||
*
|
||||
* @param WidgetClass A UUserWidget subclass (e.g. GeneratedClass of a WidgetBlueprint).
|
||||
* @param OutputAbsPath Absolute directory path where the PNG should be written.
|
||||
* The folder is created if missing.
|
||||
* @param FileNameNoExt File name WITHOUT extension. ".png" is appended automatically.
|
||||
* @param Width Texture width in pixels (clamped to [16, 8192]).
|
||||
* @param Height Texture height in pixels (clamped to [16, 8192]).
|
||||
* @param OutFullPath On success, the absolute path of the written PNG.
|
||||
* @param OutError On failure, a short description of what went wrong.
|
||||
*/
|
||||
UFUNCTION(BlueprintCallable, Category = "MCP|UI",
|
||||
meta = (DisplayName = "Render Widget To PNG"))
|
||||
static bool RenderWidgetToPNG(
|
||||
TSubclassOf<UUserWidget> WidgetClass,
|
||||
const FString& OutputAbsPath,
|
||||
const FString& FileNameNoExt,
|
||||
int32 Width,
|
||||
int32 Height,
|
||||
FString& OutFullPath,
|
||||
FString& OutError
|
||||
);
|
||||
};
|
||||
31
Source/UEBlueprintMCPEditor/Public/UEBlueprintMCPEditor.h
Normal file
31
Source/UEBlueprintMCPEditor/Public/UEBlueprintMCPEditor.h
Normal file
@ -0,0 +1,31 @@
|
||||
#pragma once
|
||||
|
||||
#include "CoreMinimal.h"
|
||||
#include "Modules/ModuleManager.h"
|
||||
|
||||
class FBlueprintEditor;
|
||||
class IInputProcessor;
|
||||
class UBlueprint;
|
||||
class UEdGraph;
|
||||
|
||||
class FUEBlueprintMCPEditorModule : public IModuleInterface
|
||||
{
|
||||
public:
|
||||
virtual void StartupModule() override;
|
||||
virtual void ShutdownModule() override;
|
||||
|
||||
private:
|
||||
friend class FMCPZoneInputProcessor;
|
||||
|
||||
void RegisterMenus();
|
||||
void NotifyBridgeStatus();
|
||||
void ToggleMCPZoneMode(TWeakPtr<FBlueprintEditor> BlueprintEditor);
|
||||
bool IsMCPZoneModeActive(TWeakPtr<FBlueprintEditor> BlueprintEditor) const;
|
||||
bool TryCreateMCPZoneFromScreenDrag(const FVector2f& StartScreenPosition, const FVector2f& EndScreenPosition);
|
||||
void CreateMCPZone(UEdGraph* Graph, UBlueprint* Blueprint, const FVector2f& GraphStart, const FVector2f& GraphEnd) const;
|
||||
void RemoveMCPZones(UBlueprint* Blueprint) const;
|
||||
|
||||
bool bMCPZoneModeActive = false;
|
||||
TWeakPtr<FBlueprintEditor> ActiveMCPZoneEditor;
|
||||
TSharedPtr<IInputProcessor> MCPZoneInputProcessor;
|
||||
};
|
||||
Reference in New Issue
Block a user