kengine/components/data/LightComponent.hpp at master · raptoravis/kengine · GitHub

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#pragma once

#include "reflection.hpp"
#include "Point.hpp"
#include "Color.hpp"

#ifndef KENGINE_CSM_COUNT
# define KENGINE_CSM_COUNT 3
#endif

namespace kengine {
	struct LightComponent {
		putils::NormalizedColor color;
		float diffuseStrength = 1.f;
		float specularStrength = .1f;
		bool castShadows = true;
		int shadowPCFSamples = 1;
		int shadowMapSize = 1024;
		float shadowMapBias = .00001f;

		putils_reflection_attributes(
			putils_reflection_attribute(&LightComponent::color),
			putils_reflection_attribute(&LightComponent::diffuseStrength),
			putils_reflection_attribute(&LightComponent::specularStrength),
			putils_reflection_attribute(&LightComponent::castShadows),
			putils_reflection_attribute(&LightComponent::shadowPCFSamples),
			putils_reflection_attribute(&LightComponent::shadowMapSize),
			putils_reflection_attribute(&LightComponent::shadowMapBias)
		);
	};

	struct DirLightComponent : LightComponent {
		putils::Vector3f direction = { 0.f, -1.f, 0.f };
		float ambientStrength = .1f;
		float cascadeEnds[KENGINE_CSM_COUNT] = { 50.f };
		float shadowCasterMaxDistance = 100.f;

		putils_reflection_class_name(DirLightComponent);
		putils_reflection_attributes(
			putils_reflection_attribute(&DirLightComponent::shadowCasterMaxDistance),
			putils_reflection_attribute(&DirLightComponent::direction),
			putils_reflection_attribute(&DirLightComponent::ambientStrength),
			putils_reflection_attribute(&DirLightComponent::cascadeEnds)
		);
		putils_reflection_parents(
			putils_reflection_parent(LightComponent)
		);
	};

	struct PointLightComponent : LightComponent {
		float range = 1000.f;
		float constant = 1.f;
		float linear = .09f;
		float quadratic = .032f;

		putils_reflection_class_name(PointLightComponent);
		putils_reflection_attributes(
			putils_reflection_attribute(&PointLightComponent::range),
			putils_reflection_attribute(&PointLightComponent::constant),
			putils_reflection_attribute(&PointLightComponent::linear),
			putils_reflection_attribute(&PointLightComponent::quadratic)
		);
		putils_reflection_parents(
			putils_reflection_parent(LightComponent)
		);
	};

	struct SpotLightComponent : PointLightComponent {
		putils::Vector3f direction = { 0.f, -1.f, 0.f };
		float cutOff = 1.f;
		float outerCutOff = 1.2f;

		putils_reflection_class_name(SpotLightComponent);
		putils_reflection_attributes(
			putils_reflection_attribute(&SpotLightComponent::direction),
			putils_reflection_attribute(&SpotLightComponent::cutOff),
			putils_reflection_attribute(&SpotLightComponent::outerCutOff)
		);
		putils_reflection_parents(
			putils_reflection_parent(PointLightComponent)
		);
	};
}