OLS/Source/OLSAnimation/Private/Libraries/OLSLocomotionBPLibrary.cpp

// © 2024 Long Ly. All rights reserved. Any unauthorized use, reproduction, or distribution of this trademark is strictly prohibited and may result in legal action.


#include "Libraries/OLSLocomotionBPLibrary.h"

DEFINE_LOG_CATEGORY_STATIC(LogOLSLocomotionLibrary, Verbose, All);

EOLSCardinalDirection UOLSLocomotionBPLibrary::SelectCardinalDirectionFromAngle(float angle,
                                                                                float deadZone,
                                                                                EOLSCardinalDirection currentDirection,
                                                                                bool useCurrentDirection /* = false */)
{

	const float absAngle = FMath::Abs(angle);
	float fwdDeadZone = deadZone;
	float bwdDeadZone = deadZone;

	if (useCurrentDirection)
	{
		if (currentDirection == EOLSCardinalDirection::EForward)
		{
			fwdDeadZone *= 2.f;
		}
		else if (currentDirection == EOLSCardinalDirection::EBackward)
		{
			bwdDeadZone *= 2.f;
		}
	}

	if(absAngle <= (45 + fwdDeadZone))
	{
		return EOLSCardinalDirection::EForward;
	}
	else if (absAngle >= (135 - bwdDeadZone))
	{
		return EOLSCardinalDirection::EBackward;
	}
	else if (angle > 0)
	{
		return EOLSCardinalDirection::ERight;
	}

	return EOLSCardinalDirection::ELeft;
}

EOLSCardinalDirection UOLSLocomotionBPLibrary::GetOppositeCardinalDirectional(EOLSCardinalDirection currentDirection)
{
	switch (currentDirection)
	{
		case EOLSCardinalDirection::EForward: {return EOLSCardinalDirection::EBackward;}
		case EOLSCardinalDirection::EBackward: {return EOLSCardinalDirection::EForward;}
		case EOLSCardinalDirection::ELeft: {return EOLSCardinalDirection::ERight;}
		case EOLSCardinalDirection::ERight: {return EOLSCardinalDirection::ELeft;}
	}

	return EOLSCardinalDirection::EForward;
}

EOLSHipDirection UOLSLocomotionBPLibrary::GetOppositeHipDirection(EOLSHipDirection currentHipDirection)
{
	return (currentHipDirection == EOLSHipDirection::EForward ? EOLSHipDirection::EBackward : EOLSHipDirection::EForward);
}

void UOLSLocomotionBPLibrary::TryLinkAnimLayer(USkeletalMeshComponent* mesh,
                                               TSubclassOf<UAnimInstance> animClass,
                                               FName groupName,
                                               bool shouldUnlinkGroupIfInvalid)
{
	if (!animClass->IsValidLowLevelFast())
	{
		if (shouldUnlinkGroupIfInvalid)
		{
			if (const TObjectPtr<UAnimInstance> linkedAnimInstance = mesh->GetLinkedAnimLayerInstanceByGroup(groupName))
			{
				mesh->UnlinkAnimClassLayers(linkedAnimInstance.GetClass());
			}
		}
		
		return;
	}

	mesh->LinkAnimClassLayers(animClass);
}