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// -180 ~ 180 까지 각도를 받으려면 Yaw 값을 Rotation에서 빼와야한다.
FVector Temp = UKismetMathLibrary::NegateVector(OwnerCharacter->LastDamageCauser->GetActorForwardVector());
	float Direction = UKismetMathLibrary::MakeRotFromX(Temp).Yaw;
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// -180 ~ 180 까지 각도를 받으려면 Yaw 값을 Rotation에서 빼와야한다.
float Direction = UKismetMathLibrary::FindLookAtRotation(OwnerCharacter->GetActorLocation(), OwnerCharacter->LastDamageCauser->GetActorLocation()).Yaw;