Add light support (WIP)

include/Nazara/Graphics/PointLight.inl

@@ -0,0 +1,91 @@
+// Copyright (C) 2022 Jérôme "Lynix" Leclercq (lynix680@gmail.com)
+// This file is part of the "Nazara Engine - Graphics module"
+// For conditions of distribution and use, see copyright notice in Config.hpp
+
+#include <Nazara/Graphics/PointLight.hpp>
+#include <cassert>
+#include <Nazara/Graphics/Debug.hpp>
+
+namespace Nz
+{
+	inline PointLight::PointLight() :
+	m_color(Color::White),
+	m_position(Vector3f::Zero()),
+	m_ambientFactor(0.2f),
+	m_diffuseFactor(1.f)
+	{
+		UpdateRadius(5.f);
+	}
+
+	inline float PointLight::GetAmbientFactor() const
+	{
+		return m_ambientFactor;
+	}
+
+	inline Color PointLight::GetColor() const
+	{
+		return m_color;
+	}
+
+	inline const Vector3f& PointLight::GetPosition() const
+	{
+		return m_position;
+	}
+
+	inline float PointLight::GetDiffuseFactor() const
+	{
+		return m_diffuseFactor;
+	}
+
+	inline float PointLight::GetRadius() const
+	{
+		return m_radius;
+	}
+
+	inline void PointLight::UpdateAmbientFactor(float factor)
+	{
+		m_ambientFactor = factor;
+
+		OnLightDataInvalided(this);
+	}
+
+	inline void PointLight::UpdateColor(Color color)
+	{
+		m_color = color;
+
+		OnLightDataInvalided(this);
+	}
+
+	inline void PointLight::UpdateDiffuseFactor(float factor)
+	{
+		m_diffuseFactor = factor;
+
+		OnLightDataInvalided(this);
+	}
+
+	inline void PointLight::UpdatePosition(const Vector3f& position)
+	{
+		m_position = position;
+
+		UpdateBoundingVolume();
+	}
+
+	inline void PointLight::UpdateRadius(float radius)
+	{
+		m_radius = radius;
+		m_invRadius = 1.f / m_radius;
+
+		UpdateBoundingVolume();
+	}
+
+	inline void PointLight::UpdateBoundingVolume()
+	{
+		Vector3f extent = Vector3f(m_radius, m_radius, m_radius) * Sqrt3<float>;
+		BoundingVolumef boundingVolume(Boxf(-extent, extent));
+		boundingVolume.Update(m_position);
+
+		Light::UpdateBoundingVolume(boundingVolume); //< will trigger OnLightDataInvalided
+	}
+}
+
+#include <Nazara/Graphics/DebugOff.hpp>