Method RefreshFeetOnGameThread

Source/ALS/Private/AlsAnimationInstance.cpp:1246–1296

}

void UAlsAnimationInstance::RefreshFeetOnGameThread()
{
	check(IsInGameThread())

	const auto* Mesh{GetSkelMeshComponent()};
	const auto PelvisTransform{Mesh->GetSocketTransform(UAlsConstants::PelvisBoneName(), RTS_Component)};

	if (bPendingUpdate)
	{
		FeetState.bValid = false;
		FeetState.bBecameValid = false;
	}
	else if (!FeetState.bValid)
	{
		// USkinnedMeshComponent::GetSocketTransform() can return an invalid transform in some cases, so we need to check this.
		// Ideally, we should use USkinnedMeshComponent.::bHasValidBoneTransform here instead, but it can't be accessed.
		// TODO Wait for https://github.com/EpicGames/UnrealEngine/pull/14322 to be merged into the engine.

		if (PelvisTransform.EqualsNoScale(FTransform::Identity))
		{
			return;
		}

		FeetState.bValid = true;
		FeetState.bBecameValid = true;
	}
	else
	{
		FeetState.bBecameValid = false;
	}

	FeetState.PelvisRotation = FQuat4f{PelvisTransform.GetRotation()};

	const auto FootLeftTargetTransform{
		Mesh->GetSocketTransform(Settings->General.bUseFootIkBones
			                         ? UAlsConstants::FootLeftIkBoneName()
			                         : UAlsConstants::FootLeftVirtualBoneName())
	};

	FeetState.Left.TargetLocationWorldSpace = FootLeftTargetTransform.GetLocation();
	FeetState.Left.TargetRotationWorldSpace = FootLeftTargetTransform.GetRotation();

	const auto FootRightTargetTransform{
		Mesh->GetSocketTransform(Settings->General.bUseFootIkBones
			                         ? UAlsConstants::FootRightIkBoneName()
			                         : UAlsConstants::FootRightVirtualBoneName())
	};

	FeetState.Right.TargetLocationWorldSpace = FootRightTargetTransform.GetLocation();
	FeetState.Right.TargetRotationWorldSpace = FootRightTargetTransform.GetRotation();
}

void UAlsAnimationInstance::RefreshFeet(const float DeltaTime)
{