#include "Render/DescentLamps.h"
#include "Core/Tuning/DescentTune_Look.h"
#include "DescentUnits.h"

#include "Components/SpotLightComponent.h"

namespace LTune = Descent::Tune::Look;

namespace Descent::Look
{
	void ConfigureSpot(USpotLightComponent* L, ELamp Kind, double IntensityScale)
	{
		if (!L) { return; }
		double Radius, Inner, Outer, Intensity, Scatter;
		FLinearColor Color;
		if (Kind == ELamp::TenderHeadlamp)
		{
			Radius = LTune::TenderLampRadiusM; Inner = LTune::TenderLampInnerDeg; Outer = LTune::TenderLampOuterDeg;
			Intensity = LTune::TenderLampIntensity; Scatter = LTune::TenderLampScatter;
			Color = FLinearColor::FromSRGBColor(FColor::FromHex(TEXT("e6f6ff")));
		}
		else
		{
			Radius = LTune::FlashlightRadiusM; Inner = LTune::FlashlightInnerDeg; Outer = LTune::FlashlightOuterDeg;
			Intensity = LTune::FlashlightIntensity; Scatter = LTune::FlashlightScatter;
			Color = FLinearColor::FromSRGBColor(FColor::FromHex(TEXT("fff2dc")));
		}
		L->SetMobility(EComponentMobility::Movable);
		L->bUseInverseSquaredFalloff = false;
		L->SetLightFalloffExponent(LTune::LightFalloffExponent);
		L->SetAttenuationRadius(static_cast<float>(Descent::MetresToUU(Radius)));
		L->SetInnerConeAngle(static_cast<float>(Inner));
		L->SetOuterConeAngle(static_cast<float>(Outer));
		L->SetLightColor(Color);
		L->SetIntensity(static_cast<float>(Intensity * IntensityScale));
		L->SetVolumetricScatteringIntensity(static_cast<float>(Scatter));
		L->SetCastShadows(true);
		L->SetSourceRadius(0.f);
		L->SetSoftSourceRadius(0.f);
		L->SetSourceLength(0.f);
	}
}