Prefab editing and window hiding

src/features/editScene/systems/EditorUISystem.cpp

@@ -299,6 +299,15 @@ void EditorUISystem::renderHierarchyWindow()
 				ImGui::EndMenu();
 			}
 
+			// Prefabs menu
+			if (ImGui::BeginMenu("Prefabs")) {
+				if (ImGui::MenuItem("Show Prefab Browser")) {
+					m_showPrefabBrowser = true;
+					m_refreshPrefabList = true;
+				}
+				ImGui::EndMenu();
+			}
+
 			// Entity menu
 			if (ImGui::BeginMenu("Entity")) {
 				if (ImGui::MenuItem("New Entity", "Ctrl+N")) {
@@ -1580,7 +1589,24 @@ void EditorUISystem::renderPrefabBrowser()
 		for (const auto &file : m_prefabFiles) {
 			std::string path = PrefabSystem::getPrefabsDirectory() +
 					   "/" + file;
-			if (ImGui::Selectable(file.c_str())) {
+			ImGui::Text("%s", file.c_str());
+			ImGui::SameLine();
+
+			std::string editId = "Edit##" + file;
+			if (ImGui::Button(editId.c_str())) {
+				SceneSerializer serializer(m_world,
+							   m_sceneMgr);
+				flecs::entity prefabRoot =
+					serializer.loadPrefabForEdit(
+						path, this);
+				if (prefabRoot.is_alive()) {
+					setSelectedEntity(prefabRoot);
+				}
+			}
+			ImGui::SameLine();
+
+			std::string instId = "Inst##" + file;
+			if (ImGui::Button(instId.c_str())) {
 				Ogre::Vector3 pos(0, 0, 0);
 				if (m_selectedEntity.is_alive() &&
 				    m_selectedEntity.has<TransformComponent>()) {
@@ -1597,7 +1623,8 @@ void EditorUISystem::renderPrefabBrowser()
 						: flecs::entity::null();
 				auto instance = prefabSys.createInstance(
 					path, parent, pos,
-					file.substr(0, file.find_last_of('.')),
+					file.substr(0, file.find_last_of('.'))
+						.c_str(),
 					this);
 				if (instance.is_alive()) {
 					setSelectedEntity(instance);

src/features/editScene/systems/EditorUISystem.hpp

@@ -252,7 +252,7 @@ private:
 	bool m_showCreatePrefabDialog = false;
 	flecs::entity m_prefabSourceEntity = flecs::entity::null();
 	char m_prefabNameBuffer[256] = { 0 };
-	bool m_showPrefabBrowser = true;
+	bool m_showPrefabBrowser = false;
 	std::vector<std::string> m_prefabFiles;
 	bool m_refreshPrefabList = true;
 

src/features/editScene/systems/SceneSerializer.cpp

@@ -852,6 +852,43 @@ bool SceneSerializer::savePrefab(flecs::entity rootEntity,
 	}
 }
 
+flecs::entity SceneSerializer::loadPrefabForEdit(
+	const std::string &filepath, EditorUISystem *uiSystem)
+{
+	try {
+		std::ifstream file(filepath);
+		if (!file.is_open()) {
+			m_lastError = "Failed to open prefab: " + filepath;
+			return flecs::entity::null();
+		}
+
+		nlohmann::json prefabJson;
+		file >> prefabJson;
+		file.close();
+
+		flecs::entity entity = m_world.entity();
+		entity.add<EditorMarkerComponent>();
+		if (prefabJson.contains("id")) {
+			m_entityMap[prefabJson["id"]] = entity;
+		}
+
+		if (!prefabJson.contains("name")) {
+			entity.set<EntityNameComponent>(
+				EntityNameComponent("Prefab"));
+		}
+
+		deserializeEntityComponents(entity, prefabJson,
+					    flecs::entity::null(),
+					    uiSystem, true, true,
+					    true);
+
+		return entity;
+	} catch (const std::exception &e) {
+		m_lastError = std::string("Prefab load error: ") + e.what();
+		return flecs::entity::null();
+	}
+}
+
 bool SceneSerializer::instantiatePrefab(flecs::entity instanceEntity,
 					const std::string &filepath,
 					EditorUISystem *uiSystem)

src/features/editScene/systems/SceneSerializer.hpp

@@ -60,6 +60,20 @@ public:
 			       const std::string &filepath,
 			       EditorUISystem *uiSystem = nullptr);
 
+	/**
+	 * Load a prefab file into the scene as editable entities.
+	 *
+	 * Unlike instantiatePrefab(), this creates a brand-new root
+	 * entity WITH EditorMarkerComponent so it can be edited and
+	 * saved back with savePrefab().
+	 *
+	 * @param filepath Path to prefab JSON file.
+	 * @param uiSystem Optional UI system for registering new entities.
+	 * @return The created root entity, or null on failure.
+	 */
+	flecs::entity loadPrefabForEdit(const std::string &filepath,
+					EditorUISystem *uiSystem = nullptr);
+
 private:
 	// Serialization helpers
 	nlohmann::json serializeEntity(flecs::entity entity);