FVector Extension

#pragma once

#include "CoreMinimal.h"

class YOURPROJECTNAME_API FVectorExt
{
public:
	static float AngleBetween(const FVector Vec1, const FVector Vec2);
	static float AngleBetween2D(const FVector Vec1, const FVector Vec2);
};

#include "Extension/FVectorExt.h"

float FVectorExt::AngleBetween(const FVector Vec1, const FVector Vec2)
{
	return (FMath::Acos(FVector::DotProduct(Vec1.GetSafeNormal(), Vec2.GetSafeNormal())) * 180) / PI;
}


float FVectorExt::AngleBetween2D(FVector Vec1, FVector Vec2)
{
	Vec1.Z = 0;
	Vec2.Z = 0;
	return (FMath::Acos(FVector::DotProduct(Vec1.GetSafeNormal(), Vec2.GetSafeNormal())) * 180) / PI;
}