Fix issue : ue5 crashed when using kawaiiPhysics and ControlRig in levelSsquence

When used with LevelSequence, GetSkeletalMeshComponent is null and it occurs crash(ensure)
#94

Author: [email protected]

Plugins/KawaiiPhysics/Source/KawaiiPhysics/Private/AnimNode_KawaiiPhysics.cpp

@@ -36,15 +36,6 @@ void FAnimNode_KawaiiPhysics::Initialize_AnyThread(const FAnimationInitializeCon
 	DeltaTimeOld = 1.0f / TargetFramerate;
 
 	bResetDynamics = false;
-
-#if WITH_EDITOR
-	const UWorld* World = Context.AnimInstanceProxy->GetSkelMeshComponent()->GetWorld();
-	if (World->WorldType == EWorldType::Editor ||
-		World->WorldType == EWorldType::EditorPreview)
-	{
-		bEditing = true;
-	}
-#endif
 }
 
 void FAnimNode_KawaiiPhysics::CacheBones_AnyThread(const FAnimationCacheBonesContext& Context)
@@ -170,6 +161,30 @@ bool FAnimNode_KawaiiPhysics::IsValidToEvaluate(const USkeleton* Skeleton, const
 	return RootBone.BoneName.IsValid();
 }
 
+bool FAnimNode_KawaiiPhysics::HasPreUpdate() const
+{
+#if WITH_EDITOR
+	return true;
+#endif
+
+	return false;
+}
+
+void FAnimNode_KawaiiPhysics::PreUpdate(const UAnimInstance* InAnimInstance)
+{
+#if WITH_EDITOR
+	if(const UWorld* World =  InAnimInstance->GetWorld())
+	{
+		if (World->WorldType == EWorldType::Editor ||
+			World->WorldType == EWorldType::EditorPreview)
+		{
+			bEditing = true;
+		}
+	}
+#endif
+}
+
+
 void FAnimNode_KawaiiPhysics::InitializeBoneReferences(const FBoneContainer& RequiredBones)
 {
 	RootBone.Initialize(RequiredBones);

Plugins/KawaiiPhysics/Source/KawaiiPhysics/Public/AnimNode_KawaiiPhysics.h

@@ -402,6 +402,8 @@ struct KAWAIIPHYSICS_API FAnimNode_KawaiiPhysics : public FAnimNode_SkeletalCont
 	// FAnimNode_SkeletalControlBase interface
 	virtual void EvaluateSkeletalControl_AnyThread(FComponentSpacePoseContext& Output, TArray<FBoneTransform>& OutBoneTransforms) override;
 	virtual bool IsValidToEvaluate(const USkeleton* Skeleton, const FBoneContainer& RequiredBones) override;
+	virtual bool HasPreUpdate() const override;
+	virtual void PreUpdate(const UAnimInstance* InAnimInstance) override;
 	virtual void UpdateInternal(const FAnimationUpdateContext& Context) override;
 	// End of FAnimNode_SkeletalControlBase interface