Add light support (WIP)

include/Nazara/Graphics/Components/LightComponent.hpp

@@ -0,0 +1,64 @@
+// 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
+
+#pragma once
+
+#ifndef NAZARA_GRAPHICS_COMPONENTS_LIGHTCOMPONENT_HPP
+#define NAZARA_GRAPHICS_COMPONENTS_LIGHTCOMPONENT_HPP
+
+#include <Nazara/Prerequisites.hpp>
+#include <Nazara/Core/ECS.hpp>
+#include <Nazara/Graphics/Light.hpp>
+#include <Nazara/Graphics/WorldInstance.hpp>
+#include <memory>
+#include <vector>
+
+namespace Nz
+{
+	class NAZARA_GRAPHICS_API LightComponent
+	{
+		public:
+			struct LightEntry;
+
+			inline LightComponent(bool initialyVisible = true);
+			LightComponent(const LightComponent&) = default;
+			LightComponent(LightComponent&&) = default;
+			~LightComponent() = default;
+
+			inline void AttachLight(std::shared_ptr<Light> renderable, UInt32 renderMask);
+
+			inline void Clear();
+
+			inline void DetachLight(const std::shared_ptr<Light>& renderable);
+
+			inline const std::vector<LightEntry>& GetLights() const;
+
+			inline void Hide();
+
+			inline bool IsVisible() const;
+
+			inline void Show(bool show = true);
+
+			LightComponent& operator=(const LightComponent&) = default;
+			LightComponent& operator=(LightComponent&&) = default;
+
+			NazaraSignal(OnLightAttached, LightComponent* /*graphicsComponent*/, const LightEntry& /*lightEntry*/);
+			NazaraSignal(OnLightDetach, LightComponent* /*graphicsComponent*/, const LightEntry& /*lightEntry*/);
+			NazaraSignal(OnVisibilityUpdate, LightComponent* /*graphicsComponent*/, bool /*newVisibilityState*/);
+
+			struct LightEntry
+			{
+				std::shared_ptr<Light> light;
+				UInt32 renderMask;
+			};
+
+		private:
+			std::vector<LightEntry> m_lightEntries;
+			bool m_isVisible;
+	};
+}
+
+#include <Nazara/Graphics/Components/LightComponent.inl>
+
+#endif // NAZARA_GRAPHICS_COMPONENTS_LIGHTCOMPONENT_HPP

include/Nazara/Graphics/Components/LightComponent.inl

@@ -0,0 +1,68 @@
+// 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/Components/LightComponent.hpp>
+#include <Nazara/Graphics/Debug.hpp>
+
+namespace Nz
+{
+	inline LightComponent::LightComponent(bool initialyVisible) :
+	m_isVisible(initialyVisible)
+	{
+	}
+
+	inline void LightComponent::AttachLight(std::shared_ptr<Light> light, UInt32 renderMask)
+	{
+		auto& entry = m_lightEntries.emplace_back();
+		entry.light = std::move(light);
+		entry.renderMask = renderMask;
+
+		OnLightAttached(this, m_lightEntries.back());
+	}
+
+	inline void LightComponent::Clear()
+	{
+		for (const auto& lightEntry : m_lightEntries)
+			OnLightDetach(this, lightEntry);
+
+		m_lightEntries.clear();
+	}
+
+	inline void LightComponent::DetachLight(const std::shared_ptr<Light>& light)
+	{
+		auto it = std::find_if(m_lightEntries.begin(), m_lightEntries.end(), [&](const auto& lightEntry) { return lightEntry.light == light; });
+		if (it != m_lightEntries.end())
+		{
+			OnLightDetach(this, *it);
+
+			m_lightEntries.erase(it);
+		}
+	}
+
+	inline auto LightComponent::GetLights() const -> const std::vector<LightEntry>&
+	{
+		return m_lightEntries;
+	}
+
+	inline void LightComponent::Hide()
+	{
+		return Show(false);
+	}
+
+	inline bool LightComponent::IsVisible() const
+	{
+		return m_isVisible;
+	}
+
+	inline void LightComponent::Show(bool show)
+	{
+		if (m_isVisible != show)
+		{
+			OnVisibilityUpdate(this, show);
+			m_isVisible = show;
+		}
+	}
+}
+
+#include <Nazara/Graphics/DebugOff.hpp>