Files
integration/Plugins/BlueprintMCP/Source/BlueprintMCP/Handlers/Blueprint_RefreshAllNodes.h

90 lines
2.6 KiB
C++

#pragma once
#include "CoreMinimal.h"
#include "MCPHandler.h"
#include "MCPAssetFinder.h"
#include "MCPUtils.h"
#include "Engine/Blueprint.h"
#include "EdGraph/EdGraph.h"
#include "EdGraph/EdGraphNode.h"
#include "EdGraph/EdGraphPin.h"
#include "Kismet2/BlueprintEditorUtils.h"
#include "Blueprint_RefreshAllNodes.generated.h"
// ---------------------------------------------------------------------------
// ---------------------------------------------------------------------------
// ---------------------------------------------------------------------------
UCLASS()
class UMCP_Blueprint_RefreshAllNodes : public UObject, public IMCPHandler
{
GENERATED_BODY()
public:
UPROPERTY(meta=(Description="Blueprint name or package path"))
FString Blueprint;
virtual FString GetDescription() const override
{
return TEXT("Refresh all nodes in a Blueprint, removing orphaned pins. "
"Reports compiler warnings and errors.");
}
virtual void Handle(const FJsonObject* Json, FStringBuilderBase& Result) override
{
// Load Blueprint
MCPAssets<UBlueprint> Assets;
if (!Assets.Exact(Blueprint).Errors(Result).ENone().ETwo().Load()) return;
UBlueprint* BP = Assets.Object();
int32 GraphCount = MCPUtils::AllGraphs(BP).Num();
int32 NodeCount = MCPUtils::AllNodes(BP).Num();
// Refresh all nodes
FBlueprintEditorUtils::RefreshAllNodes(BP);
// Remove orphaned pins from all nodes
int32 OrphanedPinsRemoved = 0;
for (UEdGraphNode* Node : MCPUtils::AllNodes(BP))
{
for (int32 i = Node->Pins.Num() - 1; i >= 0; --i)
{
UEdGraphPin* Pin = Node->Pins[i];
if (Pin && Pin->bOrphanedPin)
{
Pin->BreakAllPinLinks();
Node->Pins.RemoveAt(i);
OrphanedPinsRemoved++;
}
}
}
// Mark as modified and recompile after orphan removal
FBlueprintEditorUtils::MarkBlueprintAsStructurallyModified(BP);
// Summary
Result.Appendf(TEXT("Refreshed %s: %d graphs, %d nodes"), *MCPUtils::FormatName(BP), GraphCount, NodeCount);
if (OrphanedPinsRemoved > 0)
{
Result.Appendf(TEXT(", %d orphaned pins removed"), OrphanedPinsRemoved);
}
Result.Append(TEXT("\n"));
// Collect compiler warnings and errors
if (BP->Status == BS_Error)
{
Result.Append(TEXT("ERROR: Blueprint has compiler errors after refresh\n"));
}
for (UEdGraphNode* Node : MCPUtils::AllNodes(BP))
{
if (!Node->bHasCompilerMessage) continue;
const TCHAR* Prefix = (Node->ErrorType == EMessageSeverity::Error) ? TEXT("ERROR") : TEXT("WARNING");
Result.Appendf(TEXT("%s: [%s] %s: %s\n"),
Prefix, *MCPUtils::FormatName(Node->GetGraph()),
*MCPUtils::FormatName(Node), *Node->ErrorMsg);
}
}
};