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fix(cpp): UE 5.6 compatibility for UAnimStateNode result-node lookup #62

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Merged
zenoengine merged 1 commit into from
Jul 7, 2026
Merged

fix(cpp): UE 5.6 compatibility for UAnimStateNode result-node lookup #62

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17 changes: 16 additions & 1 deletion Plugins/UnrealMCPython/Source/UnrealMCPython/Private/MCPythonHelper_AnimGraph.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -264,7 +264,22 @@ static FString BuildStateMachineFromSpec(UAnimBlueprint* AnimBP, const TSharedPt
FBlueprintEditorUtils::RenameGraph(Bound, SD.Name);
if (SD.Seq)
{
if (UAnimGraphNode_StateResult* SR = State->GetResultNodeInsideState())
#if ENGINE_MAJOR_VERSION > 5 || (ENGINE_MAJOR_VERSION == 5 && ENGINE_MINOR_VERSION >= 7)
// UAnimStateNode::GetResultNodeInsideState() was added in UE 5.7.
UAnimGraphNode_StateResult* SR = State->GetResultNodeInsideState();
#else
// UE 5.6 and earlier: find the state result by scanning the bound graph.
UAnimGraphNode_StateResult* SR = nullptr;
if (UEdGraph* Bound = State->GetBoundGraph())
{
for (UEdGraphNode* N : Bound->Nodes)
{
if ((SR = Cast<UAnimGraphNode_StateResult>(N)) != nullptr)
break;
}
}
#endif
if (SR)
{
UEdGraphPin* SRIn = FindPinByName(SR, TEXT("Result"), EGPD_Input);
SpawnSequencePlayer(State->GetBoundGraph(), SD.Seq, -400, 0, SRIn);
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