Adding Level to handle entt world

include/NazaraEditor/Core.hpp

@@ -3,7 +3,7 @@
 #include <NazaraEditor/Core/Core.hpp>
 #include <NazaraEditor/Core/Application/Action.hpp>
 #include <NazaraEditor/Core/Application/BaseApplication.hpp>
-#include <NazaraEditor/Core/Application/World.hpp>
+#include <NazaraEditor/Core/Application/Level.hpp>
 #include <NazaraEditor/Core/UI/Window.hpp>
 #include <NazaraEditor/Core/Reflection/Math.hpp>
 #include <NazaraEditor/Core/Reflection/Core.hpp>

include/NazaraEditor/Core/Application/BaseApplication.hpp

@@ -8,6 +8,7 @@
 
 #include <NazaraEditor/Core/Core.hpp>
 #include <NazaraEditor/Core/Application/Action.hpp>
+#include <NazaraEditor/Core/Application/Level.hpp>
 #include <NazaraEditor/Core/UI/Window.hpp>
 #include <NazaraImgui/NazaraImgui.hpp>
 
@@ -17,7 +18,7 @@ namespace Nz
 		: public Nz::Application<Nz::Graphics, Nz::Imgui, Nz::EditorCore>
 	{
 	public:
-		NazaraSignal(OnWorldChanged, Nz::EnttWorld*);
+		NazaraSignal(OnWorldChanged, Nz::Level&);
 
 		// Entity lifetime events
 		NazaraSignal(OnEntityCreated, entt::handle);
@@ -30,8 +31,10 @@ namespace Nz
 
 		EditorBaseApplication();
 
-		void NewWorld();
-		Nz::EnttWorld* GetCurrentWorld();
+		Nz::Level& GetLevel();
+		bool NewLevel();
+		bool CloseLevel();
+		bool OpenLevel(const std::filesystem::path& path);
 
 		entt::handle CreateEntity();
 
@@ -44,12 +47,10 @@ namespace Nz
 
 	private:
 		std::unique_ptr<Nz::WindowSwapchain> m_windowSwapchain;
-		Nz::EnttWorld* m_world;
-
 		std::vector<std::unique_ptr<Nz::EditorWindow>> m_windows;
-
 		std::vector<std::unique_ptr<EditorAction>> m_actions;
 
 		static EditorBaseApplication* s_instance;
+		Nz::Level m_level;
 	};
 }

include/NazaraEditor/Core/Application/Level.hpp

@@ -0,0 +1,32 @@
+#pragma once
+
+#include <NazaraEditor/Core/Config.hpp>
+
+#include <Nazara/Core/EnttWorld.hpp>
+
+namespace Nz
+{
+	class EditorBaseApplication;
+
+	class NAZARAEDITOR_CORE_API Level final
+	{
+	public:
+		Level(EditorBaseApplication* app);
+
+		inline bool IsValid() const { return m_world != nullptr; }
+
+		inline Nz::EnttWorld* GetEnttWorld() { return m_world; }
+		inline const Nz::EnttWorld* GetEnttWorld() const { return m_world; }
+
+		entt::handle CreateEntity();
+		bool CreateNewLevel();
+
+	protected:
+		EditorBaseApplication* m_application;
+
+		Nz::EnttWorld* m_world;
+
+		std::filesystem::path m_path;
+		std::string m_name;
+	};
+}