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This commit is contained in:
jyelon
2026-03-10 20:15:59 -04:00
parent d5fb9cd224
commit 0e79b02307
23 changed files with 617 additions and 307 deletions
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23
Plugins/BlueprintMCP/Source/BlueprintMCP/Private/MCPFetcher.cpp
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@@ -8,6 +8,8 @@
#include "Engine/SimpleConstructionScript.h"
#include "Engine/SCS_Node.h"
#include "Engine/World.h"
#include "Materials/Material.h"
#include "MaterialGraph/MaterialGraph.h"
#include "Engine/LevelScriptBlueprint.h"
MCPFetcher& MCPFetcher::SetError(const FString& Msg)
@@ -55,7 +57,8 @@ MCPFetcher& MCPFetcher::Walk(const FString& Path)
for (int32 i = Start; i < Segments.Num(); i++)
{
FString Key, Value;
Segments[i].Split(TEXT(":"), &Key, &Value);
if (!Segments[i].Split(TEXT(":"), &Key, &Value))
Key = Segments[i];
if (StrEq(Key, TEXT("graph"))) Graph(Value);
else if (StrEq(Key, TEXT("node"))) Node(Value);
@@ -80,15 +83,31 @@ void MCPFetcher::LoadUAsset(const FString& PackagePath)
SetObj(LoadObject<UObject>(nullptr, *PackagePath));
if (!Obj)
SetError(FString::Printf(TEXT("Could not load asset '%s'"), *PackagePath));
// If this is a material open in the editor, use the editor's transient copy.
if (UMaterial* Mat = ::Cast<UMaterial>(Obj))
SetObj(MCPUtils::ReplaceMaterialWithTransientCopy(Mat));
}
MCPFetcher& MCPFetcher::Graph(const FString& Value)
{
if (bError) return *this;
// Material with blank graph name → navigate to the material graph.
if (UMaterial* Mat = ::Cast<UMaterial>(Obj))
{
if (!Value.IsEmpty())
return SetError(FString::Printf(TEXT("Materials do not have named graphs (got '%s')"), *Value));
MCPUtils::EnsureMaterialGraph(Mat);
if (!Mat->MaterialGraph)
return SetError(FString::Printf(TEXT("Material '%s' has no material graph"), *Mat->GetName()));
SetObj(Mat->MaterialGraph);
return *this;
}
UBlueprint* BP = ::Cast<UBlueprint>(Obj);
if (!BP)
return TypeMismatch(TEXT("graph"), TEXT("Blueprint"));
return TypeMismatch(TEXT("graph"), TEXT("Blueprint or Material"));
TArray<UEdGraph*> Matches = MCPUtils::AllGraphsNamed(BP, Value);
if (Matches.Num() == 0)