Fix editor scene persistence and XC scene workflow

editor/src/Application.cpp

@@ -8,15 +8,69 @@
 #include <imgui_impl_win32.h>
 #include <imgui_impl_dx12.h>
 #include <imgui_internal.h>
+#include <filesystem>
 #include <stdio.h>
 #include <windows.h>
+#include <string>
 
 extern IMGUI_IMPL_API LRESULT ImGui_ImplWin32_WndProcHandler(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam);
 
+namespace {
+
+std::string WideToUtf8(const std::wstring& value) {
+    if (value.empty()) {
+        return {};
+    }
+
+    int len = WideCharToMultiByte(CP_UTF8, 0, value.c_str(), -1, nullptr, 0, nullptr, nullptr);
+    if (len <= 0) {
+        return {};
+    }
+
+    std::string result(len - 1, '\0');
+    WideCharToMultiByte(CP_UTF8, 0, value.c_str(), -1, &result[0], len, nullptr, nullptr);
+    return result;
+}
+
+std::wstring Utf8ToWide(const std::string& value) {
+    if (value.empty()) {
+        return {};
+    }
+
+    int len = MultiByteToWideChar(CP_UTF8, 0, value.c_str(), -1, nullptr, 0);
+    if (len <= 0) {
+        return {};
+    }
+
+    std::wstring result(len - 1, L'\0');
+    MultiByteToWideChar(CP_UTF8, 0, value.c_str(), -1, &result[0], len);
+    return result;
+}
+
+std::string GetExecutableDirectoryUtf8() {
+    wchar_t exePath[MAX_PATH];
+    GetModuleFileNameW(nullptr, exePath, MAX_PATH);
+
+    std::wstring exeDirW(exePath);
+    const size_t pos = exeDirW.find_last_of(L"\\/");
+    if (pos != std::wstring::npos) {
+        exeDirW = exeDirW.substr(0, pos);
+    }
+
+    return WideToUtf8(exeDirW);
+}
+
+std::string GetExecutableLogPath(const char* fileName) {
+    return GetExecutableDirectoryUtf8() + "\\" + fileName;
+}
+
+} // namespace
+
 static LONG WINAPI GlobalExceptionFilter(EXCEPTION_POINTERS* exceptionPointers) {
-    const char* logPath = "D:\\Xuanchi\\Main\\XCEngine\\editor\\bin\\Release\\crash.log";
+    const std::string logPath = GetExecutableLogPath("crash.log");
-    
+
-    FILE* f = fopen(logPath, "a");
+    FILE* f = nullptr;
+    fopen_s(&f, logPath.c_str(), "a");
     if (f) {
         fprintf(f, "[CRASH] ExceptionCode=0x%08X, Address=0x%p\n",
             exceptionPointers->ExceptionRecord->ExceptionCode,
@@ -45,20 +99,7 @@ bool Application::Initialize(HWND hwnd) {
     
     // Redirect stderr to log file to capture ImGui errors
     {
-        wchar_t exePath[MAX_PATH];
+        const std::string stderrPath = GetExecutableLogPath("stderr.log");
-        GetModuleFileNameW(nullptr, exePath, MAX_PATH);
-        std::wstring exeDirW(exePath);
-        size_t pos = exeDirW.find_last_of(L"\\/");
-        if (pos != std::wstring::npos) {
-            exeDirW = exeDirW.substr(0, pos);
-        }
-        std::string exeDir;
-        int len = WideCharToMultiByte(CP_UTF8, 0, exeDirW.c_str(), -1, nullptr, 0, nullptr, nullptr);
-        if (len > 0) {
-            exeDir.resize(len - 1);
-            WideCharToMultiByte(CP_UTF8, 0, exeDirW.c_str(), -1, &exeDir[0], len, nullptr, nullptr);
-        }
-        std::string stderrPath = exeDir + "\\stderr.log";
         freopen(stderrPath.c_str(), "w", stderr);
         
         fprintf(stderr, "[TEST] stderr redirection test - this should appear in stderr.log\n");
@@ -70,19 +111,7 @@ bool Application::Initialize(HWND hwnd) {
     Debug::Logger::Get().AddSink(std::make_unique<Debug::EditorConsoleSink>());
     
     // Get exe directory for log file path
-    wchar_t exePath[MAX_PATH];
+    const std::string exeDir = GetExecutableDirectoryUtf8();
-    GetModuleFileNameW(nullptr, exePath, MAX_PATH);
-    std::wstring exeDirW(exePath);
-    size_t pos = exeDirW.find_last_of(L"\\/");
-    if (pos != std::wstring::npos) {
-        exeDirW = exeDirW.substr(0, pos);
-    }
-    std::string exeDir;
-    int len = WideCharToMultiByte(CP_UTF8, 0, exeDirW.c_str(), -1, nullptr, 0, nullptr, nullptr);
-    if (len > 0) {
-        exeDir.resize(len - 1);
-        WideCharToMultiByte(CP_UTF8, 0, exeDirW.c_str(), -1, &exeDir[0], len, nullptr, nullptr);
-    }
     std::string logPath = exeDir + "\\editor.log";
     Debug::Logger::Get().AddSink(std::make_unique<Debug::FileLogSink>(logPath.c_str()));
     Debug::Logger::Get().Info(Debug::LogCategory::General, "Editor Application starting...");
@@ -154,6 +183,7 @@ void Application::Render() {
     ImGui::NewFrame();
     
     m_layerStack.onImGuiRender();
+    UpdateWindowTitle();
     
     ImGui::Render();
     
@@ -198,6 +228,34 @@ void Application::Render() {
     }
 }
 
+void Application::UpdateWindowTitle() {
+    if (!m_hwnd || !m_editorContext) {
+        return;
+    }
+
+    auto& sceneManager = m_editorContext->GetSceneManager();
+    std::string sceneName = sceneManager.HasActiveScene() ? sceneManager.GetCurrentSceneName() : "No Scene";
+    if (sceneName.empty()) {
+        sceneName = "Untitled Scene";
+    }
+
+    if (sceneManager.IsSceneDirty()) {
+        sceneName += " *";
+    }
+    if (sceneManager.GetCurrentScenePath().empty()) {
+        sceneName += " (Unsaved)";
+    } else {
+        sceneName += " - ";
+        sceneName += std::filesystem::path(sceneManager.GetCurrentScenePath()).filename().string();
+    }
+
+    const std::wstring title = Utf8ToWide(sceneName + " - XCVolumeRenderer - Unity Style Editor");
+    if (title != m_lastWindowTitle) {
+        SetWindowTextW(m_hwnd, title.c_str());
+        m_lastWindowTitle = title;
+    }
+}
+
 void Application::OnResize(int width, int height) {
     if (width <= 0 || height <= 0) return;
     
@@ -303,4 +361,4 @@ void Application::CleanupRenderTarget() {
 }
 
 }
-}
+}

editor/src/Application.h

@@ -1,6 +1,7 @@
 #pragma once
 
 #include <memory>
+#include <string>
 #include <imgui.h>
 #include <d3d12.h>
 #include <dxgi1_6.h>
@@ -23,6 +24,7 @@ public:
     void Shutdown();
     void Render();
     void OnResize(int width, int height);
+    HWND GetWindowHandle() const { return m_hwnd; }
     
     IEditorContext& GetEditorContext() const { return *m_editorContext; }
     
@@ -33,6 +35,7 @@ private:
     bool CreateDevice();
     bool CreateRenderTarget();
     void CleanupRenderTarget();
+    void UpdateWindowTitle();
     
     HWND m_hwnd = nullptr;
     int m_width = 1280;
@@ -54,7 +57,8 @@ private:
     Core::LayerStack m_layerStack;
     EditorLayer* m_editorLayer = nullptr;
     std::shared_ptr<IEditorContext> m_editorContext;
+    std::wstring m_lastWindowTitle;
 };
 
 }
-}
+}

editor/src/ComponentEditors/CameraComponentEditor.h

@@ -0,0 +1,108 @@
+#pragma once
+
+#include "IComponentEditor.h"
+#include "UI/UI.h"
+
+#include <XCEngine/Components/CameraComponent.h>
+
+namespace XCEngine {
+namespace Editor {
+
+class CameraComponentEditor : public IComponentEditor {
+public:
+    const char* GetDisplayName() const override {
+        return "Camera";
+    }
+
+    bool CanEdit(::XCEngine::Components::Component* component) const override {
+        return dynamic_cast<::XCEngine::Components::CameraComponent*>(component) != nullptr;
+    }
+
+    bool Render(::XCEngine::Components::Component* component) override {
+        auto* camera = dynamic_cast<::XCEngine::Components::CameraComponent*>(component);
+        if (!camera) {
+            return false;
+        }
+
+        int projectionType = static_cast<int>(camera->GetProjectionType());
+        const char* projectionLabels[] = { "Perspective", "Orthographic" };
+        bool changed = false;
+        if (ImGui::Combo("Projection", &projectionType, projectionLabels, 2)) {
+            camera->SetProjectionType(static_cast<::XCEngine::Components::CameraProjectionType>(projectionType));
+            changed = true;
+        }
+
+        if (camera->GetProjectionType() == ::XCEngine::Components::CameraProjectionType::Perspective) {
+            float fieldOfView = camera->GetFieldOfView();
+            if (UI::DrawSliderFloat("Field Of View", fieldOfView, 1.0f, 179.0f, 100.0f, "%.1f")) {
+                camera->SetFieldOfView(fieldOfView);
+                changed = true;
+            }
+        } else {
+            float orthographicSize = camera->GetOrthographicSize();
+            if (UI::DrawFloat("Orthographic Size", orthographicSize, 100.0f, 0.1f, 0.001f)) {
+                camera->SetOrthographicSize(orthographicSize);
+                changed = true;
+            }
+        }
+
+        float nearClip = camera->GetNearClipPlane();
+        if (UI::DrawFloat("Near Clip", nearClip, 100.0f, 0.01f, 0.001f)) {
+            camera->SetNearClipPlane(nearClip);
+            changed = true;
+        }
+
+        float farClip = camera->GetFarClipPlane();
+        if (UI::DrawFloat("Far Clip", farClip, 100.0f, 0.1f, nearClip + 0.001f)) {
+            camera->SetFarClipPlane(farClip);
+            changed = true;
+        }
+
+        float depth = camera->GetDepth();
+        if (UI::DrawFloat("Depth", depth, 100.0f, 0.1f)) {
+            camera->SetDepth(depth);
+            changed = true;
+        }
+
+        bool primary = camera->IsPrimary();
+        if (UI::DrawBool("Primary", primary)) {
+            camera->SetPrimary(primary);
+            changed = true;
+        }
+
+        float clearColor[4] = {
+            camera->GetClearColor().r,
+            camera->GetClearColor().g,
+            camera->GetClearColor().b,
+            camera->GetClearColor().a
+        };
+        if (UI::DrawColor4("Clear Color", clearColor)) {
+            camera->SetClearColor(::XCEngine::Math::Color(clearColor[0], clearColor[1], clearColor[2], clearColor[3]));
+            changed = true;
+        }
+
+        return changed;
+    }
+
+    bool CanAddTo(::XCEngine::Components::GameObject* gameObject) const override {
+        return gameObject && !gameObject->GetComponent<::XCEngine::Components::CameraComponent>();
+    }
+
+    const char* GetAddDisabledReason(::XCEngine::Components::GameObject* gameObject) const override {
+        if (!gameObject) {
+            return "Invalid";
+        }
+        return gameObject->GetComponent<::XCEngine::Components::CameraComponent>() ? "Already Added" : nullptr;
+    }
+
+    ::XCEngine::Components::Component* AddTo(::XCEngine::Components::GameObject* gameObject) const override {
+        return gameObject ? gameObject->AddComponent<::XCEngine::Components::CameraComponent>() : nullptr;
+    }
+
+    bool CanRemove(::XCEngine::Components::Component* component) const override {
+        return CanEdit(component);
+    }
+};
+
+} // namespace Editor
+} // namespace XCEngine

editor/src/ComponentEditors/IComponentEditor.h

@@ -0,0 +1,35 @@
+#pragma once
+
+#include <XCEngine/Components/Component.h>
+#include <XCEngine/Components/GameObject.h>
+
+namespace XCEngine {
+namespace Editor {
+
+class IComponentEditor {
+public:
+    virtual ~IComponentEditor() = default;
+
+    virtual const char* GetDisplayName() const = 0;
+    virtual bool CanEdit(::XCEngine::Components::Component* component) const = 0;
+    virtual bool Render(::XCEngine::Components::Component* component) = 0;
+
+    virtual bool ShowInAddComponentMenu() const { return true; }
+    virtual bool CanAddTo(::XCEngine::Components::GameObject* gameObject) const { return false; }
+    virtual const char* GetAddDisabledReason(::XCEngine::Components::GameObject* gameObject) const {
+        (void)gameObject;
+        return nullptr;
+    }
+    virtual ::XCEngine::Components::Component* AddTo(::XCEngine::Components::GameObject* gameObject) const {
+        (void)gameObject;
+        return nullptr;
+    }
+
+    virtual bool CanRemove(::XCEngine::Components::Component* component) const {
+        (void)component;
+        return false;
+    }
+};
+
+} // namespace Editor
+} // namespace XCEngine

editor/src/ComponentEditors/LightComponentEditor.h

@@ -0,0 +1,98 @@
+#pragma once
+
+#include "IComponentEditor.h"
+#include "UI/UI.h"
+
+#include <XCEngine/Components/LightComponent.h>
+
+namespace XCEngine {
+namespace Editor {
+
+class LightComponentEditor : public IComponentEditor {
+public:
+    const char* GetDisplayName() const override {
+        return "Light";
+    }
+
+    bool CanEdit(::XCEngine::Components::Component* component) const override {
+        return dynamic_cast<::XCEngine::Components::LightComponent*>(component) != nullptr;
+    }
+
+    bool Render(::XCEngine::Components::Component* component) override {
+        auto* light = dynamic_cast<::XCEngine::Components::LightComponent*>(component);
+        if (!light) {
+            return false;
+        }
+
+        int lightType = static_cast<int>(light->GetLightType());
+        const char* lightTypeLabels[] = { "Directional", "Point", "Spot" };
+        bool changed = false;
+        if (ImGui::Combo("Type", &lightType, lightTypeLabels, 3)) {
+            light->SetLightType(static_cast<::XCEngine::Components::LightType>(lightType));
+            changed = true;
+        }
+
+        float color[4] = {
+            light->GetColor().r,
+            light->GetColor().g,
+            light->GetColor().b,
+            light->GetColor().a
+        };
+        if (UI::DrawColor4("Color", color)) {
+            light->SetColor(::XCEngine::Math::Color(color[0], color[1], color[2], color[3]));
+            changed = true;
+        }
+
+        float intensity = light->GetIntensity();
+        if (UI::DrawFloat("Intensity", intensity, 100.0f, 0.1f, 0.0f)) {
+            light->SetIntensity(intensity);
+            changed = true;
+        }
+
+        if (light->GetLightType() != ::XCEngine::Components::LightType::Directional) {
+            float range = light->GetRange();
+            if (UI::DrawFloat("Range", range, 100.0f, 0.1f, 0.001f)) {
+                light->SetRange(range);
+                changed = true;
+            }
+        }
+
+        if (light->GetLightType() == ::XCEngine::Components::LightType::Spot) {
+            float spotAngle = light->GetSpotAngle();
+            if (UI::DrawSliderFloat("Spot Angle", spotAngle, 1.0f, 179.0f, 100.0f, "%.1f")) {
+                light->SetSpotAngle(spotAngle);
+                changed = true;
+            }
+        }
+
+        bool castsShadows = light->GetCastsShadows();
+        if (UI::DrawBool("Cast Shadows", castsShadows)) {
+            light->SetCastsShadows(castsShadows);
+            changed = true;
+        }
+
+        return changed;
+    }
+
+    bool CanAddTo(::XCEngine::Components::GameObject* gameObject) const override {
+        return gameObject && !gameObject->GetComponent<::XCEngine::Components::LightComponent>();
+    }
+
+    const char* GetAddDisabledReason(::XCEngine::Components::GameObject* gameObject) const override {
+        if (!gameObject) {
+            return "Invalid";
+        }
+        return gameObject->GetComponent<::XCEngine::Components::LightComponent>() ? "Already Added" : nullptr;
+    }
+
+    ::XCEngine::Components::Component* AddTo(::XCEngine::Components::GameObject* gameObject) const override {
+        return gameObject ? gameObject->AddComponent<::XCEngine::Components::LightComponent>() : nullptr;
+    }
+
+    bool CanRemove(::XCEngine::Components::Component* component) const override {
+        return CanEdit(component);
+    }
+};
+
+} // namespace Editor
+} // namespace XCEngine

editor/src/ComponentEditors/TransformComponentEditor.h

@@ -0,0 +1,67 @@
+#pragma once
+
+#include "IComponentEditor.h"
+#include "UI/UI.h"
+
+#include <XCEngine/Components/TransformComponent.h>
+
+namespace XCEngine {
+namespace Editor {
+
+class TransformComponentEditor : public IComponentEditor {
+public:
+    const char* GetDisplayName() const override {
+        return "Transform";
+    }
+
+    bool CanEdit(::XCEngine::Components::Component* component) const override {
+        return dynamic_cast<::XCEngine::Components::TransformComponent*>(component) != nullptr;
+    }
+
+    bool Render(::XCEngine::Components::Component* component) override {
+        auto* transform = dynamic_cast<::XCEngine::Components::TransformComponent*>(component);
+        if (!transform) {
+            return false;
+        }
+
+        ::XCEngine::Math::Vector3 position = transform->GetLocalPosition();
+        ::XCEngine::Math::Vector3 rotation = transform->GetLocalEulerAngles();
+        ::XCEngine::Math::Vector3 scale = transform->GetLocalScale();
+        bool changed = false;
+
+        if (UI::DrawVec3("Position", position, 0.0f, 80.0f, 0.1f)) {
+            transform->SetLocalPosition(position);
+            changed = true;
+        }
+
+        if (UI::DrawVec3("Rotation", rotation, 0.0f, 80.0f, 1.0f)) {
+            transform->SetLocalEulerAngles(rotation);
+            changed = true;
+        }
+
+        if (UI::DrawVec3("Scale", scale, 1.0f, 80.0f, 0.1f)) {
+            transform->SetLocalScale(scale);
+            changed = true;
+        }
+
+        return changed;
+    }
+
+    bool CanAddTo(::XCEngine::Components::GameObject* gameObject) const override {
+        (void)gameObject;
+        return false;
+    }
+
+    const char* GetAddDisabledReason(::XCEngine::Components::GameObject* gameObject) const override {
+        (void)gameObject;
+        return "Built-in";
+    }
+
+    bool CanRemove(::XCEngine::Components::Component* component) const override {
+        (void)component;
+        return false;
+    }
+};
+
+} // namespace Editor
+} // namespace XCEngine

editor/src/Core/EditorConsoleSink.cpp

@@ -3,14 +3,22 @@
 namespace XCEngine {
 namespace Debug {
 
+EditorConsoleSink* EditorConsoleSink::s_instance = nullptr;
+
 EditorConsoleSink* EditorConsoleSink::GetInstance() {
-    static EditorConsoleSink instance;
+    static EditorConsoleSink fallbackInstance;
-    return &instance;
+    return s_instance ? s_instance : &fallbackInstance;
 }
 
-EditorConsoleSink::EditorConsoleSink() = default;
+EditorConsoleSink::EditorConsoleSink() {
+    s_instance = this;
+}
 
-EditorConsoleSink::~EditorConsoleSink() = default;
+EditorConsoleSink::~EditorConsoleSink() {
+    if (s_instance == this) {
+        s_instance = nullptr;
+    }
+}
 
 void EditorConsoleSink::Log(const LogEntry& entry) {
     std::lock_guard<std::mutex> lock(m_mutex);
@@ -26,7 +34,8 @@ void EditorConsoleSink::Log(const LogEntry& entry) {
 void EditorConsoleSink::Flush() {
 }
 
-const std::vector<LogEntry>& EditorConsoleSink::GetLogs() const {
+std::vector<LogEntry> EditorConsoleSink::GetLogs() const {
+    std::lock_guard<std::mutex> lock(m_mutex);
     return m_logs;
 }
 
@@ -40,4 +49,4 @@ void EditorConsoleSink::SetCallback(std::function<void()> callback) {
 }
 
 } // namespace Debug
-} // namespace XCEngine
+} // namespace XCEngine

editor/src/Core/EditorConsoleSink.h

@@ -19,7 +19,7 @@ public:
     void Log(const LogEntry& entry) override;
     void Flush() override;
 
-    const std::vector<LogEntry>& GetLogs() const;
+    std::vector<LogEntry> GetLogs() const;
     void Clear();
     void SetCallback(std::function<void()> callback);
 
@@ -27,8 +27,9 @@ private:
     mutable std::mutex m_mutex;
     std::vector<LogEntry> m_logs;
     std::function<void()> m_callback;
+    static EditorConsoleSink* s_instance;
     static constexpr size_t MAX_LOGS = 1000;
 };
 
 } // namespace Debug
-} // namespace XCEngine
+} // namespace XCEngine

editor/src/Core/EditorContext.h

@@ -19,7 +19,7 @@ public:
     EditorContext() 
         : m_eventBus(std::make_unique<EventBus>())
         , m_selectionManager(std::make_unique<SelectionManager>(*m_eventBus))
-        , m_sceneManager(std::make_unique<SceneManager>())
+        , m_sceneManager(std::make_unique<SceneManager>(m_eventBus.get()))
         , m_projectManager(std::make_unique<ProjectManager>()) {
         
         m_entityDeletedHandlerId = m_eventBus->Subscribe<EntityDeletedEvent>([this](const EntityDeletedEvent& event) {

editor/src/Core/EventBus.h

@@ -6,24 +6,30 @@
 #include <algorithm>
 #include <cassert>
 #include <cstdint>
+#include <atomic>
 #include <mutex>
 #include <shared_mutex>
 
 namespace XCEngine {
 namespace Editor {
 
-template<typename T>
+class EventTypeRegistry {
-struct EventTypeId {
+public:
-    static uint32_t Get() {
+    static uint32_t NextId() {
-        static const uint32_t id = s_nextId++;
+        return s_nextId.fetch_add(1, std::memory_order_relaxed);
-        return id;
     }
+
 private:
-    static uint32_t s_nextId;
+    inline static std::atomic<uint32_t> s_nextId{0};
 };
 
 template<typename T>
-uint32_t EventTypeId<T>::s_nextId = 0;
+struct EventTypeId {
+    static uint32_t Get() {
+        static const uint32_t id = EventTypeRegistry::NextId();
+        return id;
+    }
+};
 
 class EventBus {
 public:

editor/src/Core/ISceneManager.h

@@ -22,8 +22,18 @@ public:
     virtual ::XCEngine::Components::GameObject::ID DuplicateEntity(::XCEngine::Components::GameObject::ID id) = 0;
     virtual void MoveEntity(::XCEngine::Components::GameObject::ID id, ::XCEngine::Components::GameObject::ID newParent) = 0;
     virtual bool HasClipboardData() const = 0;
+    virtual void NewScene(const std::string& name = "Untitled Scene") = 0;
+    virtual bool LoadScene(const std::string& filePath) = 0;
+    virtual bool SaveScene() = 0;
+    virtual bool SaveSceneAs(const std::string& filePath) = 0;
+    virtual bool LoadStartupScene(const std::string& projectPath) = 0;
+    virtual bool HasActiveScene() const = 0;
+    virtual bool IsSceneDirty() const = 0;
+    virtual void MarkSceneDirty() = 0;
+    virtual const std::string& GetCurrentScenePath() const = 0;
+    virtual const std::string& GetCurrentSceneName() const = 0;
     virtual void CreateDemoScene() = 0;
 };
 
 }
-}
+}

editor/src/Layers/EditorLayer.cpp

@@ -8,6 +8,7 @@
 #include "panels/ProjectPanel.h"
 #include "Core/IEditorContext.h"
 #include "Core/EditorContext.h"
+#include <filesystem>
 #include <imgui.h>
 #include <imgui_internal.h>
 
@@ -41,6 +42,10 @@ void EditorLayer::onAttach() {
     m_consolePanel->SetContext(m_context.get());
     m_projectPanel->SetContext(m_context.get());
     
+    m_projectPanel->Initialize(m_context->GetProjectPath());
+    m_context->GetSceneManager().LoadStartupScene(m_context->GetProjectPath());
+    m_context->GetProjectManager().RefreshCurrentFolder();
+
     m_menuBar->OnAttach();
     m_hierarchyPanel->OnAttach();
     m_sceneViewPanel->OnAttach();
@@ -48,11 +53,18 @@ void EditorLayer::onAttach() {
     m_inspectorPanel->OnAttach();
     m_consolePanel->OnAttach();
     m_projectPanel->OnAttach();
-    
-    m_projectPanel->Initialize(m_context->GetProjectPath());
 }
 
 void EditorLayer::onDetach() {
+    auto& sceneManager = m_context->GetSceneManager();
+    if (sceneManager.HasActiveScene() && sceneManager.IsSceneDirty()) {
+        if (!sceneManager.SaveScene()) {
+            const std::string fallbackPath =
+                (std::filesystem::path(m_context->GetProjectPath()) / "Assets" / "Scenes" / "Main.xc").string();
+            sceneManager.SaveSceneAs(fallbackPath);
+        }
+    }
+
     m_menuBar->OnDetach();
     m_hierarchyPanel->OnDetach();
     m_sceneViewPanel->OnDetach();

editor/src/Managers/ProjectManager.cpp

@@ -89,7 +89,6 @@ void ProjectManager::Initialize(const std::string& projectPath) {
             std::ofstream((assetsPath / L"Textures" / L"Stone.png").wstring());
             std::ofstream((assetsPath / L"Models" / L"Character.fbx").wstring());
             std::ofstream((assetsPath / L"Scripts" / L"PlayerController.cs").wstring());
-            std::ofstream((assetsPath / L"Scenes" / L"Main.unity").wstring());
         }
         
         m_rootFolder = ScanDirectory(assetsPath.wstring());
@@ -227,7 +226,7 @@ AssetItemPtr ProjectManager::CreateAssetItem(const std::wstring& path, const std
             item->type = "Script";
         } else if (ext == L".mat") {
             item->type = "Material";
-        } else if (ext == L".unity" || ext == L".scene") {
+        } else if (ext == L".xc" || ext == L".unity" || ext == L".scene") {
             item->type = "Scene";
         } else if (ext == L".prefab") {
             item->type = "Prefab";
@@ -240,4 +239,4 @@ AssetItemPtr ProjectManager::CreateAssetItem(const std::wstring& path, const std
 }
 
 }
-}
+}

editor/src/Managers/SceneManager.cpp

@@ -1,43 +1,106 @@
 #include "SceneManager.h"
+#include "Core/EventBus.h"
+#include "Core/EditorEvents.h"
+#include <XCEngine/Components/CameraComponent.h>
+#include <XCEngine/Components/LightComponent.h>
+#include <XCEngine/Components/AudioSourceComponent.h>
+#include <XCEngine/Components/AudioListenerComponent.h>
 #include <algorithm>
+#include <filesystem>
+#include <fstream>
+#include <sstream>
 
 namespace XCEngine {
 namespace Editor {
 
-SceneManager::SceneManager() = default;
+namespace {
+
+std::pair<std::string, std::string> SerializeComponent(const ::XCEngine::Components::Component* component) {
+    std::ostringstream payload;
+    component->Serialize(payload);
+    return { component->GetName(), payload.str() };
+}
+
+::XCEngine::Components::Component* CreateComponentByName(
+    ::XCEngine::Components::GameObject* gameObject,
+    const std::string& componentName) {
+    if (!gameObject) {
+        return nullptr;
+    }
+
+    if (componentName == "Camera") {
+        return gameObject->AddComponent<::XCEngine::Components::CameraComponent>();
+    }
+    if (componentName == "Light") {
+        return gameObject->AddComponent<::XCEngine::Components::LightComponent>();
+    }
+    if (componentName == "AudioSource") {
+        return gameObject->AddComponent<::XCEngine::Components::AudioSourceComponent>();
+    }
+    if (componentName == "AudioListener") {
+        return gameObject->AddComponent<::XCEngine::Components::AudioListenerComponent>();
+    }
+
+    return nullptr;
+}
+
+} // namespace
+
+SceneManager::SceneManager(EventBus* eventBus)
+    : m_eventBus(eventBus) {}
+
+void SceneManager::SetSceneDirty(bool dirty) {
+    m_isSceneDirty = dirty;
+}
+
+void SceneManager::MarkSceneDirty() {
+    SetSceneDirty(true);
+}
 
 ::XCEngine::Components::GameObject* SceneManager::CreateEntity(const std::string& name, ::XCEngine::Components::GameObject* parent) {
     if (!m_scene) {
-        m_scene = new ::XCEngine::Components::Scene("EditorScene");
+        m_scene = std::make_unique<::XCEngine::Components::Scene>("EditorScene");
     }
     
     ::XCEngine::Components::GameObject* entity = m_scene->CreateGameObject(name, parent);
-    
+    const auto entityId = entity->GetID();
-    if (parent == nullptr) {
+    SyncRootEntities();
-        m_rootEntities.push_back(entity);
+    SetSceneDirty(true);
+
+    OnEntityCreated.Invoke(entityId);
+    OnSceneChanged.Invoke();
+
+    if (m_eventBus) {
+        m_eventBus->Publish(EntityCreatedEvent{ entityId });
+        m_eventBus->Publish(SceneChangedEvent{});
     }
-    
+
-    OnEntityCreated.Invoke(entity->GetID());
     return entity;
 }
 
 void SceneManager::DeleteEntity(::XCEngine::Components::GameObject::ID id) {
     if (!m_scene) return;
     
-    ::XCEngine::Components::GameObject* entity = m_scene->Find(std::to_string(id));
+    ::XCEngine::Components::GameObject* entity = m_scene->FindByID(id);
     if (!entity) return;
     
     std::vector<::XCEngine::Components::GameObject*> children = entity->GetChildren();
     for (auto* child : children) {
         DeleteEntity(child->GetID());
     }
-    
+
-    if (entity->GetParent() == nullptr) {
+    const auto entityId = entity->GetID();
-        m_rootEntities.erase(std::remove(m_rootEntities.begin(), m_rootEntities.end(), entity), m_rootEntities.end());
-    }
-    
     m_scene->DestroyGameObject(entity);
-    OnEntityDeleted.Invoke(entity->GetID());
+    SyncRootEntities();
+    SetSceneDirty(true);
+
+    OnEntityDeleted.Invoke(entityId);
+    OnSceneChanged.Invoke();
+
+    if (m_eventBus) {
+        m_eventBus->Publish(EntityDeletedEvent{ entityId });
+        m_eventBus->Publish(SceneChangedEvent{});
+    }
 }
 
 SceneManager::ClipboardData SceneManager::CopyEntityRecursive(const ::XCEngine::Components::GameObject* entity) {
@@ -50,6 +113,14 @@ SceneManager::ClipboardData SceneManager::CopyEntityRecursive(const ::XCEngine::
         data.localScale = transform->GetLocalScale();
     }
 
+    auto components = entity->GetComponents<::XCEngine::Components::Component>();
+    for (auto* component : components) {
+        if (!component || component == entity->GetTransform()) {
+            continue;
+        }
+        data.components.push_back(SerializeComponent(component));
+    }
+
     for (auto* child : entity->GetChildren()) {
         data.children.push_back(CopyEntityRecursive(child));
     }
@@ -60,7 +131,7 @@ SceneManager::ClipboardData SceneManager::CopyEntityRecursive(const ::XCEngine::
 void SceneManager::CopyEntity(::XCEngine::Components::GameObject::ID id) {
     if (!m_scene) return;
     
-    ::XCEngine::Components::GameObject* entity = m_scene->Find(std::to_string(id));
+    ::XCEngine::Components::GameObject* entity = m_scene->FindByID(id);
     if (!entity) return;
 
     m_clipboard = CopyEntityRecursive(entity);
@@ -69,7 +140,7 @@ void SceneManager::CopyEntity(::XCEngine::Components::GameObject::ID id) {
 ::XCEngine::Components::GameObject::ID SceneManager::PasteEntityRecursive(const ClipboardData& data, ::XCEngine::Components::GameObject::ID parent) {
     ::XCEngine::Components::GameObject* parentObj = nullptr;
     if (parent != 0) {
-        parentObj = m_scene->Find(std::to_string(parent));
+        parentObj = m_scene->FindByID(parent);
     }
     
     ::XCEngine::Components::GameObject* newEntity = m_scene->CreateGameObject(data.name, parentObj);
@@ -79,9 +150,14 @@ void SceneManager::CopyEntity(::XCEngine::Components::GameObject::ID id) {
         transform->SetLocalRotation(data.localRotation);
         transform->SetLocalScale(data.localScale);
     }
-    
+
-    if (parentObj == nullptr) {
+    for (const auto& componentData : data.components) {
-        m_rootEntities.push_back(newEntity);
+        if (auto* component = CreateComponentByName(newEntity, componentData.first)) {
+            if (!componentData.second.empty()) {
+                std::istringstream payloadStream(componentData.second);
+                component->Deserialize(payloadStream);
+            }
+        }
     }
     
     for (const auto& childData : data.children) {
@@ -93,13 +169,25 @@ void SceneManager::CopyEntity(::XCEngine::Components::GameObject::ID id) {
 
 ::XCEngine::Components::GameObject::ID SceneManager::PasteEntity(::XCEngine::Components::GameObject::ID parent) {
     if (!m_clipboard || !m_scene) return 0;
-    return PasteEntityRecursive(*m_clipboard, parent);
+
+    const auto newEntityId = PasteEntityRecursive(*m_clipboard, parent);
+    SyncRootEntities();
+
+    OnEntityCreated.Invoke(newEntityId);
+    OnSceneChanged.Invoke();
+
+    if (m_eventBus) {
+        m_eventBus->Publish(EntityCreatedEvent{ newEntityId });
+        m_eventBus->Publish(SceneChangedEvent{});
+    }
+
+    return newEntityId;
 }
 
 ::XCEngine::Components::GameObject::ID SceneManager::DuplicateEntity(::XCEngine::Components::GameObject::ID id) {
     if (!m_scene) return 0;
     
-    ::XCEngine::Components::GameObject* entity = m_scene->Find(std::to_string(id));
+    ::XCEngine::Components::GameObject* entity = m_scene->FindByID(id);
     if (!entity) return 0;
     
     CopyEntity(id);
@@ -110,54 +198,210 @@ void SceneManager::CopyEntity(::XCEngine::Components::GameObject::ID id) {
     return PasteEntity(parentId);
 }
 
+void SceneManager::NewScene(const std::string& name) {
+    m_scene = std::make_unique<::XCEngine::Components::Scene>(name);
+    m_rootEntities.clear();
+    m_clipboard.reset();
+    m_currentScenePath.clear();
+    m_currentSceneName = name;
+    SetSceneDirty(true);
+
+    OnSceneChanged.Invoke();
+    if (m_eventBus) {
+        m_eventBus->Publish(SceneChangedEvent{});
+    }
+}
+
+bool SceneManager::LoadScene(const std::string& filePath) {
+    namespace fs = std::filesystem;
+
+    if (!fs::exists(filePath) || !fs::is_regular_file(filePath)) {
+        return false;
+    }
+
+    auto scene = std::make_unique<::XCEngine::Components::Scene>();
+    scene->Load(filePath);
+
+    m_scene = std::move(scene);
+    m_clipboard.reset();
+    SyncRootEntities();
+    m_currentScenePath = filePath;
+    m_currentSceneName = m_scene ? m_scene->GetName() : "Untitled Scene";
+    SetSceneDirty(false);
+
+    OnSceneChanged.Invoke();
+    if (m_eventBus) {
+        m_eventBus->Publish(SceneChangedEvent{});
+    }
+
+    return true;
+}
+
+bool SceneManager::SaveScene() {
+    if (!m_scene) {
+        return false;
+    }
+    if (m_currentScenePath.empty()) {
+        return false;
+    }
+
+    namespace fs = std::filesystem;
+    fs::path savePath = fs::path(m_currentScenePath).replace_extension(".xc");
+    fs::create_directories(savePath.parent_path());
+
+    m_scene->Save(savePath.string());
+    m_currentScenePath = savePath.string();
+    SetSceneDirty(false);
+    return true;
+}
+
+bool SceneManager::SaveSceneAs(const std::string& filePath) {
+    if (!m_scene || filePath.empty()) {
+        return false;
+    }
+
+    namespace fs = std::filesystem;
+    fs::path savePath = fs::path(filePath).replace_extension(".xc");
+    fs::create_directories(savePath.parent_path());
+
+    m_scene->Save(savePath.string());
+    m_currentScenePath = savePath.string();
+    m_currentSceneName = m_scene->GetName();
+    SetSceneDirty(false);
+    return true;
+}
+
+bool SceneManager::LoadStartupScene(const std::string& projectPath) {
+    const std::string defaultScenePath = ResolveDefaultScenePath(projectPath);
+    if (IsSceneFileUsable(defaultScenePath) && LoadScene(defaultScenePath)) {
+        return true;
+    }
+
+    CreateDemoScene();
+    return SaveSceneAs(defaultScenePath);
+}
+
 void SceneManager::RenameEntity(::XCEngine::Components::GameObject::ID id, const std::string& newName) {
     if (!m_scene) return;
     
-    ::XCEngine::Components::GameObject* obj = m_scene->Find(std::to_string(id));
+    ::XCEngine::Components::GameObject* obj = m_scene->FindByID(id);
     if (!obj) return;
     
     obj->SetName(newName);
+    SetSceneDirty(true);
     OnEntityChanged.Invoke(id);
+
+    if (m_eventBus) {
+        m_eventBus->Publish(EntityChangedEvent{ id });
+    }
 }
 
 void SceneManager::MoveEntity(::XCEngine::Components::GameObject::ID id, ::XCEngine::Components::GameObject::ID newParentId) {
     if (!m_scene) return;
     
-    ::XCEngine::Components::GameObject* obj = m_scene->Find(std::to_string(id));
+    ::XCEngine::Components::GameObject* obj = m_scene->FindByID(id);
     if (!obj) return;
+    const auto oldParentId = obj->GetParent() ? obj->GetParent()->GetID() : 0;
     
     ::XCEngine::Components::GameObject* newParent = nullptr;
     if (newParentId != 0) {
-        newParent = m_scene->Find(std::to_string(newParentId));
+        newParent = m_scene->FindByID(newParentId);
     }
     
     obj->SetParent(newParent);
+    SyncRootEntities();
+    SetSceneDirty(true);
+
     OnEntityChanged.Invoke(id);
+    OnSceneChanged.Invoke();
+
+    if (m_eventBus) {
+        m_eventBus->Publish(EntityParentChangedEvent{ id, oldParentId, newParentId });
+        m_eventBus->Publish(EntityChangedEvent{ id });
+        m_eventBus->Publish(SceneChangedEvent{});
+    }
 }
 
 void SceneManager::CreateDemoScene() {
-    if (m_scene) {
+    m_scene = std::make_unique<::XCEngine::Components::Scene>("Main Scene");
-        delete m_scene;
-    }
-    m_scene = new ::XCEngine::Components::Scene("DemoScene");
     m_rootEntities.clear();
     m_clipboard.reset();
+    m_currentScenePath.clear();
+    m_currentSceneName = m_scene->GetName();
+    SetSceneDirty(true);
 
     ::XCEngine::Components::GameObject* camera = CreateEntity("Main Camera", nullptr);
-    camera->AddComponent<::XCEngine::Components::TransformComponent>();
+    camera->AddComponent<::XCEngine::Components::CameraComponent>();
 
     ::XCEngine::Components::GameObject* light = CreateEntity("Directional Light", nullptr);
+    light->AddComponent<::XCEngine::Components::LightComponent>();
 
-    ::XCEngine::Components::GameObject* cube = CreateEntity("Cube", nullptr);
+    SyncRootEntities();
-    cube->AddComponent<::XCEngine::Components::TransformComponent>();
-
-    ::XCEngine::Components::GameObject* sphere = CreateEntity("Sphere", nullptr);
-    sphere->AddComponent<::XCEngine::Components::TransformComponent>();
-
-    ::XCEngine::Components::GameObject* player = CreateEntity("Player", nullptr);
-    ::XCEngine::Components::GameObject* weapon = CreateEntity("Weapon", player);
-
     OnSceneChanged.Invoke();
+
+    if (m_eventBus) {
+        m_eventBus->Publish(SceneChangedEvent{});
+    }
+}
+
+void SceneManager::SyncRootEntities() {
+    if (!m_scene) {
+        m_rootEntities.clear();
+        m_currentSceneName = "Untitled Scene";
+        SetSceneDirty(false);
+        return;
+    }
+
+    m_rootEntities = m_scene->GetRootGameObjects();
+    m_currentSceneName = m_scene->GetName();
+}
+
+std::string SceneManager::GetScenesDirectory(const std::string& projectPath) {
+    return (std::filesystem::path(projectPath) / "Assets" / "Scenes").string();
+}
+
+std::string SceneManager::ResolveDefaultScenePath(const std::string& projectPath) {
+    namespace fs = std::filesystem;
+
+    const fs::path scenesDir = GetScenesDirectory(projectPath);
+    const fs::path mainXC = scenesDir / "Main.xc";
+    if (fs::exists(mainXC)) {
+        return mainXC.string();
+    }
+
+    const fs::path mainScene = scenesDir / "Main.scene";
+    if (fs::exists(mainScene)) {
+        return mainScene.string();
+    }
+
+    const fs::path mainUnity = scenesDir / "Main.unity";
+    if (fs::exists(mainUnity)) {
+        return mainUnity.string();
+    }
+
+    if (fs::exists(scenesDir)) {
+        for (const auto& entry : fs::directory_iterator(scenesDir)) {
+            if (!entry.is_regular_file()) {
+                continue;
+            }
+
+            const fs::path ext = entry.path().extension();
+            if (ext == ".xc" || ext == ".scene" || ext == ".unity") {
+                return entry.path().string();
+            }
+        }
+    }
+
+    return mainXC.string();
+}
+
+bool SceneManager::IsSceneFileUsable(const std::string& filePath) {
+    namespace fs = std::filesystem;
+
+    return !filePath.empty() &&
+        fs::exists(filePath) &&
+        fs::is_regular_file(filePath) &&
+        fs::file_size(filePath) > 0;
 }
 
 }

editor/src/Managers/SceneManager.h

@@ -6,6 +6,7 @@
 #include <optional>
 #include <string>
 #include <cstdint>
+#include <vector>
 
 #include <XCEngine/Core/Event.h>
 #include <XCEngine/Core/Math/Vector3.h>
@@ -18,9 +19,11 @@
 namespace XCEngine {
 namespace Editor {
 
+class EventBus;
+
 class SceneManager : public ISceneManager {
 public:
-    SceneManager();
+    explicit SceneManager(EventBus* eventBus = nullptr);
     
     ::XCEngine::Components::GameObject* CreateEntity(const std::string& name, ::XCEngine::Components::GameObject* parent = nullptr);
 
@@ -45,7 +48,17 @@ public:
     ::XCEngine::Components::GameObject::ID DuplicateEntity(::XCEngine::Components::GameObject::ID id);
     void MoveEntity(::XCEngine::Components::GameObject::ID id, ::XCEngine::Components::GameObject::ID newParent);
 
-    void CreateDemoScene();
+    void NewScene(const std::string& name = "Untitled Scene") override;
+    bool LoadScene(const std::string& filePath) override;
+    bool SaveScene() override;
+    bool SaveSceneAs(const std::string& filePath) override;
+    bool LoadStartupScene(const std::string& projectPath) override;
+    bool HasActiveScene() const override { return m_scene != nullptr; }
+    bool IsSceneDirty() const override { return m_isSceneDirty; }
+    void MarkSceneDirty() override;
+    const std::string& GetCurrentScenePath() const override { return m_currentScenePath; }
+    const std::string& GetCurrentSceneName() const override { return m_currentSceneName; }
+    void CreateDemoScene() override;
 
     bool HasClipboardData() const { return m_clipboard.has_value(); }
 
@@ -60,15 +73,25 @@ private:
         Math::Vector3 localPosition = Math::Vector3::Zero();
         Math::Quaternion localRotation = Math::Quaternion::Identity();
         Math::Vector3 localScale = Math::Vector3::One();
+        std::vector<std::pair<std::string, std::string>> components;
         std::vector<ClipboardData> children;
     };
 
     ClipboardData CopyEntityRecursive(const ::XCEngine::Components::GameObject* entity);
     ::XCEngine::Components::GameObject::ID PasteEntityRecursive(const ClipboardData& data, ::XCEngine::Components::GameObject::ID parent);
+    void SetSceneDirty(bool dirty);
+    void SyncRootEntities();
+    static std::string GetScenesDirectory(const std::string& projectPath);
+    static std::string ResolveDefaultScenePath(const std::string& projectPath);
+    static bool IsSceneFileUsable(const std::string& filePath);
 
-    ::XCEngine::Components::Scene* m_scene = nullptr;
+    std::unique_ptr<::XCEngine::Components::Scene> m_scene;
     std::vector<::XCEngine::Components::GameObject*> m_rootEntities;
     std::optional<ClipboardData> m_clipboard;
+    EventBus* m_eventBus = nullptr;
+    std::string m_currentScenePath;
+    std::string m_currentSceneName = "Untitled Scene";
+    bool m_isSceneDirty = false;
 };
 
 }

editor/src/Utils/SceneEditorUtils.h

@@ -0,0 +1,196 @@
+#pragma once
+
+#include "Core/IEditorContext.h"
+#include "Core/IProjectManager.h"
+#include "Core/ISceneManager.h"
+
+#ifndef NOMINMAX
+#define NOMINMAX
+#endif
+
+#include <windows.h>
+#include <commdlg.h>
+
+#include <array>
+#include <filesystem>
+#include <string>
+
+namespace XCEngine {
+namespace Editor {
+namespace SceneEditorUtils {
+
+inline std::wstring Utf8ToWide(const std::string& value) {
+    if (value.empty()) {
+        return {};
+    }
+
+    const int length = MultiByteToWideChar(CP_UTF8, 0, value.c_str(), -1, nullptr, 0);
+    if (length <= 0) {
+        return {};
+    }
+
+    std::wstring result(length - 1, L'\0');
+    MultiByteToWideChar(CP_UTF8, 0, value.c_str(), -1, &result[0], length);
+    return result;
+}
+
+inline std::string WideToUtf8(const std::wstring& value) {
+    if (value.empty()) {
+        return {};
+    }
+
+    const int length = WideCharToMultiByte(CP_UTF8, 0, value.c_str(), -1, nullptr, 0, nullptr, nullptr);
+    if (length <= 0) {
+        return {};
+    }
+
+    std::string result(length - 1, '\0');
+    WideCharToMultiByte(CP_UTF8, 0, value.c_str(), -1, &result[0], length, nullptr, nullptr);
+    return result;
+}
+
+inline std::string SanitizeSceneFileName(const std::string& value) {
+    std::string result = value.empty() ? "Untitled Scene" : value;
+    for (char& ch : result) {
+        switch (ch) {
+            case '\\':
+            case '/':
+            case ':':
+            case '*':
+            case '?':
+            case '"':
+            case '<':
+            case '>':
+            case '|':
+                ch = '_';
+                break;
+            default:
+                if (static_cast<unsigned char>(ch) < 32u) {
+                    ch = '_';
+                }
+                break;
+        }
+    }
+    return result;
+}
+
+inline HWND GetDialogOwnerWindow() {
+    HWND owner = GetActiveWindow();
+    if (!owner) {
+        owner = GetForegroundWindow();
+    }
+    return owner;
+}
+
+inline const wchar_t* GetSceneFilter() {
+    static const wchar_t filter[] =
+        L"XCEngine Scene (*.xc)\0*.xc\0Legacy Scene (*.scene;*.unity)\0*.scene;*.unity\0All Files (*.*)\0*.*\0\0";
+    return filter;
+}
+
+inline std::string OpenSceneFileDialog(const std::string& projectPath, const std::string& initialPath = {}) {
+    namespace fs = std::filesystem;
+
+    const fs::path scenesDir = fs::path(projectPath) / "Assets" / "Scenes";
+    const std::wstring initialDir = Utf8ToWide(scenesDir.string());
+
+    std::array<wchar_t, 1024> fileBuffer{};
+    if (!initialPath.empty()) {
+        const std::wstring initialFile = Utf8ToWide(initialPath);
+        wcsncpy_s(fileBuffer.data(), fileBuffer.size(), initialFile.c_str(), _TRUNCATE);
+    }
+
+    OPENFILENAMEW dialog{};
+    dialog.lStructSize = sizeof(dialog);
+    dialog.hwndOwner = GetDialogOwnerWindow();
+    dialog.lpstrFilter = GetSceneFilter();
+    dialog.lpstrFile = fileBuffer.data();
+    dialog.nMaxFile = static_cast<DWORD>(fileBuffer.size());
+    dialog.lpstrInitialDir = initialDir.empty() ? nullptr : initialDir.c_str();
+    dialog.Flags = OFN_FILEMUSTEXIST | OFN_PATHMUSTEXIST | OFN_NOCHANGEDIR;
+
+    if (!GetOpenFileNameW(&dialog)) {
+        return {};
+    }
+
+    return WideToUtf8(fileBuffer.data());
+}
+
+inline std::string SaveSceneFileDialog(
+    const std::string& projectPath,
+    const std::string& currentScenePath,
+    const std::string& currentSceneName) {
+    namespace fs = std::filesystem;
+
+    const fs::path scenesDir = fs::path(projectPath) / "Assets" / "Scenes";
+    const fs::path suggestedPath = currentScenePath.empty()
+        ? scenesDir / (SanitizeSceneFileName(currentSceneName) + ".xc")
+        : fs::path(currentScenePath).replace_extension(".xc");
+
+    std::array<wchar_t, 1024> fileBuffer{};
+    const std::wstring suggestedWide = Utf8ToWide(suggestedPath.string());
+    wcsncpy_s(fileBuffer.data(), fileBuffer.size(), suggestedWide.c_str(), _TRUNCATE);
+
+    const std::wstring initialDir = Utf8ToWide(suggestedPath.parent_path().string());
+    OPENFILENAMEW dialog{};
+    dialog.lStructSize = sizeof(dialog);
+    dialog.hwndOwner = GetDialogOwnerWindow();
+    dialog.lpstrFilter = GetSceneFilter();
+    dialog.lpstrFile = fileBuffer.data();
+    dialog.nMaxFile = static_cast<DWORD>(fileBuffer.size());
+    dialog.lpstrInitialDir = initialDir.empty() ? nullptr : initialDir.c_str();
+    dialog.lpstrDefExt = L"xc";
+    dialog.Flags = OFN_OVERWRITEPROMPT | OFN_PATHMUSTEXIST | OFN_NOCHANGEDIR;
+
+    if (!GetSaveFileNameW(&dialog)) {
+        return {};
+    }
+
+    return WideToUtf8(fileBuffer.data());
+}
+
+inline bool SaveCurrentScene(IEditorContext& context) {
+    auto& sceneManager = context.GetSceneManager();
+    if (sceneManager.SaveScene()) {
+        return true;
+    }
+
+    const std::string filePath = SaveSceneFileDialog(
+        context.GetProjectPath(),
+        sceneManager.GetCurrentScenePath(),
+        sceneManager.GetCurrentSceneName());
+    if (filePath.empty()) {
+        return false;
+    }
+
+    const bool saved = sceneManager.SaveSceneAs(filePath);
+    if (saved) {
+        context.GetProjectManager().RefreshCurrentFolder();
+    }
+    return saved;
+}
+
+inline bool ConfirmSceneSwitch(IEditorContext& context) {
+    auto& sceneManager = context.GetSceneManager();
+    if (!sceneManager.HasActiveScene() || !sceneManager.IsSceneDirty()) {
+        return true;
+    }
+
+    const int result = MessageBoxW(
+        GetDialogOwnerWindow(),
+        L"Save changes to the current scene before continuing?",
+        L"Unsaved Scene Changes",
+        MB_YESNOCANCEL | MB_ICONWARNING);
+
+    if (result == IDCANCEL) {
+        return false;
+    }
+    if (result == IDYES) {
+        return SaveCurrentScene(context);
+    }
+    return true;
+}
+
+} // namespace SceneEditorUtils
+} // namespace Editor
+} // namespace XCEngine

editor/src/panels/ConsolePanel.cpp

@@ -11,9 +11,11 @@ ConsolePanel::ConsolePanel() : Panel("Console") {
 
 void ConsolePanel::Render() {
     ImGui::Begin(m_name.c_str(), nullptr, ImGuiWindowFlags_None);
+
+    auto* sink = Debug::EditorConsoleSink::GetInstance();
     
     if (ImGui::Button("Clear")) {
-        Debug::EditorConsoleSink::GetInstance()->Clear();
+        sink->Clear();
     }
     ImGui::SameLine();
     
@@ -52,7 +54,7 @@ void ConsolePanel::Render() {
     
     ImGui::BeginChild("LogScroll", ImVec2(0, 0), false, ImGuiWindowFlags_HorizontalScrollbar);
     
-    const auto& logs = Debug::EditorConsoleSink::GetInstance()->GetLogs();
+    const auto logs = sink->GetLogs();
     size_t logIndex = 0;
     for (const auto& log : logs) {
         bool shouldShow = false;
@@ -117,4 +119,4 @@ void ConsolePanel::Render() {
 }
 
 }
-}
+}

editor/src/panels/HierarchyPanel.cpp

@@ -6,6 +6,8 @@
 #include "Core/EventBus.h"
 #include <XCEngine/Core/Math/Vector3.h>
 #include <XCEngine/Core/Math/Quaternion.h>
+#include <XCEngine/Components/CameraComponent.h>
+#include <XCEngine/Components/LightComponent.h>
 #include <imgui.h>
 #include <cstring>
 
@@ -22,9 +24,6 @@ HierarchyPanel::~HierarchyPanel() {
 }
 
 void HierarchyPanel::OnAttach() {
-    auto& sceneManager = m_context->GetSceneManager();
-    sceneManager.CreateDemoScene();
-    
     m_selectionHandlerId = m_context->GetEventBus().Subscribe<SelectionChangedEvent>(
         [this](const SelectionChangedEvent& event) {
             OnSelectionChanged(event);
@@ -74,7 +73,16 @@ void HierarchyPanel::Render() {
             ::XCEngine::Components::GameObject* sourceGameObject = *(::XCEngine::Components::GameObject**)payload->Data;
             if (sourceGameObject && sourceGameObject->GetParent() != nullptr) {
                 auto& sceneManager = m_context->GetSceneManager();
+                auto* srcTransform = sourceGameObject->GetTransform();
+                Math::Vector3 worldPos = srcTransform->GetPosition();
+                Math::Quaternion worldRot = srcTransform->GetRotation();
+                Math::Vector3 worldScale = srcTransform->GetScale();
+
                 sceneManager.MoveEntity(sourceGameObject->GetID(), 0);
+
+                srcTransform->SetPosition(worldPos);
+                srcTransform->SetRotation(worldRot);
+                srcTransform->SetScale(worldScale);
             }
         }
         ImGui::EndDragDropTarget();
@@ -195,7 +203,7 @@ void HierarchyPanel::RenderContextMenu(::XCEngine::Components::GameObject* gameO
     
     if (gameObject != nullptr && gameObject->GetParent() != nullptr) {
         if (ImGui::MenuItem("Detach from Parent")) {
-            gameObject->DetachFromParent();
+            sceneManager.MoveEntity(gameObject->GetID(), 0);
         }
     }
     
@@ -242,12 +250,13 @@ void HierarchyPanel::RenderCreateMenu(::XCEngine::Components::GameObject* parent
     
     if (ImGui::MenuItem("Camera")) {
         auto* newEntity = sceneManager.CreateEntity("Camera", parent);
-        newEntity->AddComponent<::XCEngine::Components::TransformComponent>();
+        newEntity->AddComponent<::XCEngine::Components::CameraComponent>();
         selectionManager.SetSelectedEntity(newEntity->GetID());
     }
     
     if (ImGui::MenuItem("Light")) {
         auto* newEntity = sceneManager.CreateEntity("Light", parent);
+        newEntity->AddComponent<::XCEngine::Components::LightComponent>();
         selectionManager.SetSelectedEntity(newEntity->GetID());
     }
     
@@ -255,19 +264,16 @@ void HierarchyPanel::RenderCreateMenu(::XCEngine::Components::GameObject* parent
     
     if (ImGui::MenuItem("Cube")) {
         auto* newEntity = sceneManager.CreateEntity("Cube", parent);
-        newEntity->AddComponent<::XCEngine::Components::TransformComponent>();
         selectionManager.SetSelectedEntity(newEntity->GetID());
     }
     
     if (ImGui::MenuItem("Sphere")) {
         auto* newEntity = sceneManager.CreateEntity("Sphere", parent);
-        newEntity->AddComponent<::XCEngine::Components::TransformComponent>();
         selectionManager.SetSelectedEntity(newEntity->GetID());
     }
     
     if (ImGui::MenuItem("Plane")) {
         auto* newEntity = sceneManager.CreateEntity("Plane", parent);
-        newEntity->AddComponent<::XCEngine::Components::TransformComponent>();
         selectionManager.SetSelectedEntity(newEntity->GetID());
     }
 }

editor/src/panels/InspectorPanel.cpp

@@ -1,8 +1,13 @@
 #include "InspectorPanel.h"
-#include "Core/EditorContext.h"
+#include "Core/IEditorContext.h"
 #include "Core/ISceneManager.h"
-#include "UI/UI.h"
+#include "Core/ISelectionManager.h"
-#include <XCEngine/Debug/Logger.h>
+#include "Core/EventBus.h"
+#include "Core/EditorEvents.h"
+#include "ComponentEditors/CameraComponentEditor.h"
+#include "ComponentEditors/IComponentEditor.h"
+#include "ComponentEditors/LightComponentEditor.h"
+#include "ComponentEditors/TransformComponentEditor.h"
 #include <imgui.h>
 #include <string>
 
@@ -10,7 +15,7 @@ namespace XCEngine {
 namespace Editor {
 
 InspectorPanel::InspectorPanel() : Panel("Inspector") {
-    Debug::Logger::Get().Debug(Debug::LogCategory::General, "InspectorPanel constructed");
+    RegisterDefaultComponentEditors();
 }
 
 InspectorPanel::~InspectorPanel() {
@@ -23,8 +28,35 @@ void InspectorPanel::OnSelectionChanged(const SelectionChangedEvent& event) {
     m_selectedEntityId = event.primarySelection;
 }
 
+void InspectorPanel::RegisterDefaultComponentEditors() {
+    RegisterComponentEditor(std::make_unique<TransformComponentEditor>());
+    RegisterComponentEditor(std::make_unique<CameraComponentEditor>());
+    RegisterComponentEditor(std::make_unique<LightComponentEditor>());
+}
+
+void InspectorPanel::RegisterComponentEditor(std::unique_ptr<IComponentEditor> editor) {
+    if (!editor) {
+        return;
+    }
+
+    m_componentEditors.push_back(std::move(editor));
+}
+
+IComponentEditor* InspectorPanel::GetEditorFor(::XCEngine::Components::Component* component) const {
+    if (!component) {
+        return nullptr;
+    }
+
+    for (const auto& editor : m_componentEditors) {
+        if (editor && editor->CanEdit(component)) {
+            return editor.get();
+        }
+    }
+
+    return nullptr;
+}
+
 void InspectorPanel::Render() {
-    Debug::Logger::Get().Debug(Debug::LogCategory::General, "InspectorPanel::Render START");
     ImGui::Begin(m_name.c_str(), nullptr, ImGuiWindowFlags_None);
     
     if (!m_selectionHandlerId && m_context) {
@@ -51,21 +83,18 @@ void InspectorPanel::Render() {
     }
     
     ImGui::End();
-    Debug::Logger::Get().Debug(Debug::LogCategory::General, "InspectorPanel::Render END");
 }
 
 void InspectorPanel::RenderGameObject(::XCEngine::Components::GameObject* gameObject) {
-    Debug::Logger::Get().Debug(Debug::LogCategory::General, "RenderGameObject START");
     char nameBuffer[256];
     strcpy_s(nameBuffer, gameObject->GetName().c_str());
     ImGui::InputText("##Name", nameBuffer, sizeof(nameBuffer));
     if (ImGui::IsItemDeactivatedAfterEdit()) {
-        gameObject->SetName(nameBuffer);
+        m_context->GetSceneManager().RenameEntity(gameObject->GetID(), nameBuffer);
     }
     
     ImGui::SameLine();
     if (ImGui::Button("Add Component")) {
-        Debug::Logger::Get().Debug(Debug::LogCategory::General, "Add Component BUTTON CLICKED");
         ImGui::OpenPopup("AddComponent");
     }
     
@@ -75,53 +104,54 @@ void InspectorPanel::RenderGameObject(::XCEngine::Components::GameObject* gameOb
     for (auto* component : components) {
         RenderComponent(component, gameObject);
     }
-    Debug::Logger::Get().Debug(Debug::LogCategory::General, "RenderGameObject END");
 }
 
 void InspectorPanel::RenderAddComponentPopup(::XCEngine::Components::GameObject* gameObject) {
-    Debug::Logger::Get().Debug(Debug::LogCategory::General, "RenderAddComponentPopup called");
-    
-    if (!gameObject) {
-        Debug::Logger::Get().Error(Debug::LogCategory::General, "ERROR: gameObject is nullptr!");
-        return;
-    }
-    
     if (!ImGui::BeginPopup("AddComponent")) {
-        Debug::Logger::Get().Debug(Debug::LogCategory::General, "BeginPopup returned false");
         return;
     }
-    
+
-    Debug::Logger::Get().Debug(Debug::LogCategory::General, "BeginPopup succeeded");
-    
     ImGui::Text("Components");
     ImGui::Separator();
-    
+
-    bool hasTransform = gameObject->GetComponent<::XCEngine::Components::TransformComponent>() != nullptr;
+    bool drewAnyEntry = false;
-    Debug::Logger::Get().Debug(Debug::LogCategory::General, hasTransform ? "Has Transform: yes" : "Has Transform: no");
+    for (const auto& editor : m_componentEditors) {
-    
+        if (!editor || !editor->ShowInAddComponentMenu()) {
-    Debug::Logger::Get().Debug(Debug::LogCategory::General, "About to check MenuItem condition");
+            continue;
-    if (ImGui::MenuItem("Transform", nullptr, false, !hasTransform)) {
+        }
-        Debug::Logger::Get().Debug(Debug::LogCategory::General, "MenuItem CLICKED! Before AddComponent");
+
-        
+        drewAnyEntry = true;
-        auto* newComp = gameObject->AddComponent<::XCEngine::Components::TransformComponent>();
+        const bool canAdd = editor->CanAddTo(gameObject);
-        Debug::Logger::Get().Debug(Debug::LogCategory::General, newComp ? "AddComponent SUCCEEDED" : "AddComponent FAILED");
+        std::string label = editor->GetDisplayName();
-        
+        if (!canAdd) {
-        ImGui::CloseCurrentPopup();
+            const char* reason = editor->GetAddDisabledReason(gameObject);
-    } else {
+            if (reason && reason[0] != '\0') {
-        Debug::Logger::Get().Debug(Debug::LogCategory::General, "MenuItem not clicked (disabled or condition false)");
+                label += " (";
+                label += reason;
+                label += ")";
+            }
+        }
+
+        if (ImGui::MenuItem(label.c_str(), nullptr, false, canAdd)) {
+            if (editor->AddTo(gameObject)) {
+                m_context->GetSceneManager().MarkSceneDirty();
+                ImGui::CloseCurrentPopup();
+            }
+        }
     }
-    
+
-    ImGui::Separator();
+    if (!drewAnyEntry) {
-    ImGui::TextDisabled("No more components available");
+        ImGui::TextDisabled("No registered component editors");
-    
+    }
-    Debug::Logger::Get().Debug(Debug::LogCategory::General, "About to EndPopup - calling EndPopup");
+
     ImGui::EndPopup();
-    Debug::Logger::Get().Debug(Debug::LogCategory::General, "Popup closed");
 }
 
 void InspectorPanel::RenderComponent(::XCEngine::Components::Component* component, ::XCEngine::Components::GameObject* gameObject) {
     if (!component) return;
     
+    IComponentEditor* editor = GetEditorFor(component);
+    
     const char* name = component->GetName().c_str();
     
     ImGui::PushStyleVar(ImGuiStyleVar_FramePadding, ImVec2{4, 2});
@@ -138,8 +168,9 @@ void InspectorPanel::RenderComponent(::XCEngine::Components::Component* componen
     ImGui::PopStyleVar();
     
     bool removeComponent = false;
+    const bool canRemoveComponent = editor ? editor->CanRemove(component) : false;
     if (ImGui::BeginPopupContextItem("ComponentSettings")) {
-        if (ImGui::MenuItem("Remove Component")) {
+        if (ImGui::MenuItem("Remove Component", nullptr, false, canRemoveComponent)) {
             removeComponent = true;
         }
         ImGui::EndPopup();
@@ -151,22 +182,12 @@ void InspectorPanel::RenderComponent(::XCEngine::Components::Component* componen
     }
     
     if (open) {
-        if (auto* transform = dynamic_cast<::XCEngine::Components::TransformComponent*>(component)) {
+        if (editor) {
-            ::XCEngine::Math::Vector3 position = transform->GetLocalPosition();
+            if (editor->Render(component)) {
-            ::XCEngine::Math::Vector3 rotation = transform->GetLocalEulerAngles();
+                m_context->GetSceneManager().MarkSceneDirty();
-            ::XCEngine::Math::Vector3 scale = transform->GetLocalScale();
-            
-            if (UI::DrawVec3("Position", position, 0.0f, 80.0f, 0.1f)) {
-                transform->SetLocalPosition(position);
-            }
-            
-            if (UI::DrawVec3("Rotation", rotation, 0.0f, 80.0f, 1.0f)) {
-                transform->SetLocalEulerAngles(rotation);
-            }
-            
-            if (UI::DrawVec3("Scale", scale, 1.0f, 80.0f, 0.1f)) {
-                transform->SetLocalScale(scale);
             }
+        } else {
+            ImGui::TextDisabled("No registered editor for this component");
         }
         
         ImGui::TreePop();
@@ -179,14 +200,9 @@ void InspectorPanel::RemoveComponentByType(::XCEngine::Components::Component* co
     if (dynamic_cast<::XCEngine::Components::TransformComponent*>(component)) {
         return;
     }
-    
+
-    auto components = gameObject->GetComponents<::XCEngine::Components::Component>();
+    gameObject->RemoveComponent(component);
-    for (auto* comp : components) {
+    m_context->GetSceneManager().MarkSceneDirty();
-        if (comp == component) {
-            gameObject->RemoveComponent<::XCEngine::Components::Component>();
-            break;
-        }
-    }
 }
 
 }

editor/src/panels/InspectorPanel.h

@@ -1,11 +1,21 @@
 #pragma once
 
 #include "Panel.h"
-#include <XCEngine/Components/TransformComponent.h>
+
+#include <cstdint>
+#include <memory>
+#include <vector>
 
 namespace XCEngine {
+namespace Components {
+class Component;
+class GameObject;
+}
+
 namespace Editor {
 
+class IComponentEditor;
+
 class InspectorPanel : public Panel {
 public:
     InspectorPanel();
@@ -14,6 +24,9 @@ public:
     void Render() override;
 
 private:
+    void RegisterDefaultComponentEditors();
+    void RegisterComponentEditor(std::unique_ptr<IComponentEditor> editor);
+    IComponentEditor* GetEditorFor(::XCEngine::Components::Component* component) const;
     void RenderGameObject(::XCEngine::Components::GameObject* gameObject);
     void RenderAddComponentPopup(::XCEngine::Components::GameObject* gameObject);
     void RenderComponent(::XCEngine::Components::Component* component, ::XCEngine::Components::GameObject* gameObject);
@@ -22,6 +35,7 @@ private:
     
     uint64_t m_selectionHandlerId = 0;
     uint64_t m_selectedEntityId = 0;
+    std::vector<std::unique_ptr<IComponentEditor>> m_componentEditors;
 };
 
 }

editor/src/panels/MenuBar.cpp

@@ -1,4 +1,8 @@
 #include "MenuBar.h"
+#include "Core/IEditorContext.h"
+#include "Core/ISceneManager.h"
+#include "Utils/SceneEditorUtils.h"
+#include <filesystem>
 #include <imgui.h>
 
 namespace XCEngine {
@@ -7,20 +11,103 @@ namespace Editor {
 MenuBar::MenuBar() : Panel("MenuBar") {}
 
 void MenuBar::Render() {
+    HandleShortcuts();
+
     if (ImGui::BeginMainMenuBar()) {
         ShowFileMenu();
         ShowEditMenu();
         ShowViewMenu();
         ShowHelpMenu();
+        RenderSceneStatus();
         ImGui::EndMainMenuBar();
     }
 }
 
+void MenuBar::NewScene() {
+    if (!m_context || !SceneEditorUtils::ConfirmSceneSwitch(*m_context)) {
+        return;
+    }
+
+    m_context->GetSceneManager().NewScene();
+}
+
+void MenuBar::OpenScene() {
+    if (!m_context || !SceneEditorUtils::ConfirmSceneSwitch(*m_context)) {
+        return;
+    }
+
+    const std::string filePath = SceneEditorUtils::OpenSceneFileDialog(
+        m_context->GetProjectPath(),
+        m_context->GetSceneManager().GetCurrentScenePath());
+    if (!filePath.empty()) {
+        m_context->GetSceneManager().LoadScene(filePath);
+    }
+}
+
+void MenuBar::SaveScene() {
+    if (!m_context) {
+        return;
+    }
+
+    if (!SceneEditorUtils::SaveCurrentScene(*m_context)) {
+        return;
+    }
+}
+
+void MenuBar::SaveSceneAs() {
+    if (!m_context) {
+        return;
+    }
+
+    const std::string filePath = SceneEditorUtils::SaveSceneFileDialog(
+        m_context->GetProjectPath(),
+        m_context->GetSceneManager().GetCurrentScenePath(),
+        m_context->GetSceneManager().GetCurrentSceneName());
+    if (!filePath.empty() && m_context->GetSceneManager().SaveSceneAs(filePath)) {
+        m_context->GetProjectManager().RefreshCurrentFolder();
+    }
+}
+
+void MenuBar::HandleShortcuts() {
+    if (!m_context) {
+        return;
+    }
+
+    ImGuiIO& io = ImGui::GetIO();
+    if (!io.KeyCtrl) {
+        return;
+    }
+
+    auto& sceneManager = m_context->GetSceneManager();
+    if (ImGui::IsKeyPressed(ImGuiKey_N, false)) {
+        NewScene();
+    }
+    if (ImGui::IsKeyPressed(ImGuiKey_O, false)) {
+        OpenScene();
+    }
+    if (ImGui::IsKeyPressed(ImGuiKey_S, false)) {
+        if (io.KeyShift) {
+            SaveSceneAs();
+        } else {
+            SaveScene();
+        }
+    }
+}
+
 void MenuBar::ShowFileMenu() {
     if (ImGui::BeginMenu("File")) {
-        if (ImGui::MenuItem("New Scene", "Ctrl+N")) {}
+        if (ImGui::MenuItem("New Scene", "Ctrl+N")) {
-        if (ImGui::MenuItem("Open Scene", "Ctrl+O")) {}
+            NewScene();
-        if (ImGui::MenuItem("Save Scene", "Ctrl+S")) {}
+        }
+        if (ImGui::MenuItem("Open Scene", "Ctrl+O")) {
+            OpenScene();
+        }
+        if (ImGui::MenuItem("Save Scene", "Ctrl+S")) {
+            SaveScene();
+        }
+        if (ImGui::MenuItem("Save Scene As...", "Ctrl+Shift+S")) {
+            SaveSceneAs();
+        }
         ImGui::Separator();
         if (ImGui::MenuItem("Exit", "Alt+F4")) {}
         ImGui::EndMenu();
@@ -53,5 +140,45 @@ void MenuBar::ShowHelpMenu() {
     }
 }
 
+void MenuBar::RenderSceneStatus() {
+    if (!m_context) {
+        return;
+    }
+
+    auto& sceneManager = m_context->GetSceneManager();
+    std::string sceneLabel = sceneManager.HasActiveScene() ? sceneManager.GetCurrentSceneName() : "No Scene";
+    if (sceneLabel.empty()) {
+        sceneLabel = "Untitled Scene";
+    }
+
+    std::string fileLabel = sceneManager.GetCurrentScenePath().empty()
+        ? "Unsaved.xc"
+        : std::filesystem::path(sceneManager.GetCurrentScenePath()).filename().string();
+
+    const bool dirty = sceneManager.IsSceneDirty();
+    const std::string statusText = std::string("Scene: ") + fileLabel + (dirty ? "  Modified" : "  Saved");
+    const ImVec2 textSize = ImGui::CalcTextSize(statusText.c_str());
+    const float targetX = ImGui::GetWindowWidth() - textSize.x - 20.0f;
+    if (targetX > ImGui::GetCursorPosX()) {
+        ImGui::SetCursorPosX(targetX);
+    }
+
+    const ImVec4 accentColor = dirty
+        ? ImVec4(0.94f, 0.68f, 0.20f, 1.0f)
+        : ImVec4(0.48f, 0.78f, 0.49f, 1.0f);
+    ImGui::TextColored(accentColor, "%s", statusText.c_str());
+
+    if (ImGui::IsItemHovered()) {
+        ImGui::BeginTooltip();
+        ImGui::Text("Scene");
+        ImGui::Separator();
+        ImGui::Text("Name: %s", sceneLabel.c_str());
+        ImGui::Text("File: %s", fileLabel.c_str());
+        ImGui::Text("State: %s", dirty ? "Modified" : "Saved");
+        ImGui::Text("Path: %s", sceneManager.GetCurrentScenePath().empty() ? "(not saved yet)" : sceneManager.GetCurrentScenePath().c_str());
+        ImGui::EndTooltip();
+    }
+}
+
+}
 }
-}

editor/src/panels/MenuBar.h

@@ -11,6 +11,12 @@ public:
     void Render() override;
 
 private:
+    void HandleShortcuts();
+    void NewScene();
+    void OpenScene();
+    void SaveScene();
+    void SaveSceneAs();
+    void RenderSceneStatus();
     void ShowFileMenu();
     void ShowEditMenu();
     void ShowViewMenu();
@@ -18,4 +24,4 @@ private:
 };
 
 }
-}
+}

editor/src/panels/ProjectPanel.cpp

@@ -1,7 +1,9 @@
 #include "ProjectPanel.h"
 #include "Core/IEditorContext.h"
 #include "Core/IProjectManager.h"
+#include "Core/ISceneManager.h"
 #include "Core/AssetItem.h"
+#include "Utils/SceneEditorUtils.h"
 #include <imgui.h>
 #include <imgui_internal.h>
 
@@ -83,7 +85,7 @@ void ProjectPanel::Render() {
     
     auto& items = manager.GetCurrentItems();
     std::string searchStr = m_searchBuffer;
-    int itemIndex = 0;
+    int displayedCount = 0;
     
     for (int i = 0; i < (int)items.size(); i++) {
         if (!searchStr.empty()) {
@@ -92,11 +94,11 @@ void ProjectPanel::Render() {
             }
         }
         
-        if (itemIndex > 0 && itemIndex % columns != 0) {
+        if (displayedCount > 0 && displayedCount % columns != 0) {
             ImGui::SameLine();
         }
-        RenderAssetItem(items[i], itemIndex);
+        RenderAssetItem(items[i], i);
-        itemIndex++;
+        displayedCount++;
     }
     
     ImGui::PopStyleVar();
@@ -108,9 +110,13 @@ void ProjectPanel::Render() {
     if (ImGui::BeginPopup("ItemContextMenu")) {
         if (m_contextMenuIndex >= 0 && m_contextMenuIndex < (int)items.size()) {
             auto& item = items[m_contextMenuIndex];
-            if (item->isFolder) {
+            if (item->isFolder || item->type == "Scene") {
                 if (ImGui::MenuItem("Open")) {
-                    manager.NavigateToFolder(item);
+                    if (item->isFolder) {
+                        manager.NavigateToFolder(item);
+                    } else if (SceneEditorUtils::ConfirmSceneSwitch(*m_context)) {
+                        m_context->GetSceneManager().LoadScene(item->fullPath);
+                    }
                 }
                 ImGui::Separator();
             }
@@ -276,8 +282,14 @@ void ProjectPanel::RenderAssetItem(const AssetItemPtr& item, int index) {
         }
     }
     
-    if (doubleClicked && item->isFolder) {
+    if (doubleClicked) {
-        manager.NavigateToFolder(item);
+        if (item->isFolder) {
+            manager.NavigateToFolder(item);
+        } else if (item->type == "Scene") {
+            if (SceneEditorUtils::ConfirmSceneSwitch(*m_context)) {
+                m_context->GetSceneManager().LoadScene(item->fullPath);
+            }
+        }
     }
     
     ImGui::PopID();
@@ -297,4 +309,4 @@ bool ProjectPanel::HandleDrop(const AssetItemPtr& targetFolder) {
 }
 
 }
-}
+}

engine/CMakeLists.txt

@@ -243,9 +243,17 @@ add_library(XCEngine STATIC
     ${CMAKE_CURRENT_SOURCE_DIR}/include/XCEngine/Components/Component.h
     ${CMAKE_CURRENT_SOURCE_DIR}/include/XCEngine/Components/TransformComponent.h
     ${CMAKE_CURRENT_SOURCE_DIR}/include/XCEngine/Components/GameObject.h
+    ${CMAKE_CURRENT_SOURCE_DIR}/include/XCEngine/Components/CameraComponent.h
+    ${CMAKE_CURRENT_SOURCE_DIR}/include/XCEngine/Components/LightComponent.h
+    ${CMAKE_CURRENT_SOURCE_DIR}/include/XCEngine/Components/AudioSourceComponent.h
+    ${CMAKE_CURRENT_SOURCE_DIR}/include/XCEngine/Components/AudioListenerComponent.h
     ${CMAKE_CURRENT_SOURCE_DIR}/src/Components/Component.cpp
     ${CMAKE_CURRENT_SOURCE_DIR}/src/Components/TransformComponent.cpp
     ${CMAKE_CURRENT_SOURCE_DIR}/src/Components/GameObject.cpp
+    ${CMAKE_CURRENT_SOURCE_DIR}/src/Components/CameraComponent.cpp
+    ${CMAKE_CURRENT_SOURCE_DIR}/src/Components/LightComponent.cpp
+    ${CMAKE_CURRENT_SOURCE_DIR}/src/Components/AudioSourceComponent.cpp
+    ${CMAKE_CURRENT_SOURCE_DIR}/src/Components/AudioListenerComponent.cpp
 
     # Scene
     ${CMAKE_CURRENT_SOURCE_DIR}/include/XCEngine/Scene/Scene.h

engine/include/XCEngine/Components/CameraComponent.h

@@ -0,0 +1,57 @@
+#pragma once
+
+#include <XCEngine/Components/Component.h>
+#include <XCEngine/Core/Math/Color.h>
+
+namespace XCEngine {
+namespace Components {
+
+enum class CameraProjectionType {
+    Perspective = 0,
+    Orthographic
+};
+
+class CameraComponent : public Component {
+public:
+    std::string GetName() const override { return "Camera"; }
+
+    CameraProjectionType GetProjectionType() const { return m_projectionType; }
+    void SetProjectionType(CameraProjectionType type) { m_projectionType = type; }
+
+    float GetFieldOfView() const { return m_fieldOfView; }
+    void SetFieldOfView(float value);
+
+    float GetOrthographicSize() const { return m_orthographicSize; }
+    void SetOrthographicSize(float value);
+
+    float GetNearClipPlane() const { return m_nearClipPlane; }
+    void SetNearClipPlane(float value);
+
+    float GetFarClipPlane() const { return m_farClipPlane; }
+    void SetFarClipPlane(float value);
+
+    float GetDepth() const { return m_depth; }
+    void SetDepth(float value) { m_depth = value; }
+
+    bool IsPrimary() const { return m_primary; }
+    void SetPrimary(bool value) { m_primary = value; }
+
+    const Math::Color& GetClearColor() const { return m_clearColor; }
+    void SetClearColor(const Math::Color& value) { m_clearColor = value; }
+
+    void Serialize(std::ostream& os) const override;
+    void Deserialize(std::istream& is) override;
+
+private:
+    CameraProjectionType m_projectionType = CameraProjectionType::Perspective;
+    float m_fieldOfView = 60.0f;
+    float m_orthographicSize = 5.0f;
+    float m_nearClipPlane = 0.1f;
+    float m_farClipPlane = 1000.0f;
+    float m_depth = 0.0f;
+    bool m_primary = true;
+    Math::Color m_clearColor = Math::Color(0.192f, 0.302f, 0.475f, 1.0f);
+};
+
+} // namespace Components
+} // namespace XCEngine

engine/include/XCEngine/Components/GameObject.h

@@ -5,10 +5,12 @@
 #include <string>
 #include <vector>
 #include <memory>
+#include <algorithm>
 #include <unordered_map>
 #include <istream>
 #include <ostream>
 #include <random>
+#include <type_traits>
 
 namespace XCEngine {
 namespace Components {
@@ -38,6 +40,10 @@ public:
 
     template<typename T, typename... Args>
     T* AddComponent(Args&&... args) {
+        if constexpr (std::is_base_of_v<TransformComponent, T>) {
+            return dynamic_cast<T*>(m_transform);
+        }
+
         auto component = std::make_unique<T>(std::forward<Args>(args)...);
         component->m_gameObject = this;
         T* ptr = component.get();
@@ -47,6 +53,10 @@ public:
 
     template<typename T>
     T* GetComponent() {
+        if (T* casted = dynamic_cast<T*>(m_transform)) {
+            return casted;
+        }
+
         for (auto& comp : m_components) {
             if (T* casted = dynamic_cast<T*>(comp.get())) {
                 return casted;
@@ -57,6 +67,10 @@ public:
 
     template<typename T>
     const T* GetComponent() const {
+        if (const T* casted = dynamic_cast<const T*>(m_transform)) {
+            return casted;
+        }
+
         for (auto& comp : m_components) {
             if (T* casted = dynamic_cast<T*>(comp.get())) {
                 return casted;
@@ -68,6 +82,9 @@ public:
     template<typename T>
     std::vector<T*> GetComponents() {
         std::vector<T*> result;
+        if (T* casted = dynamic_cast<T*>(m_transform)) {
+            result.push_back(casted);
+        }
         for (auto& comp : m_components) {
             if (T* casted = dynamic_cast<T*>(comp.get())) {
                 result.push_back(casted);
@@ -79,6 +96,9 @@ public:
     template<typename T>
     std::vector<const T*> GetComponents() const {
         std::vector<const T*> result;
+        if (const T* casted = dynamic_cast<const T*>(m_transform)) {
+            result.push_back(casted);
+        }
         for (auto& comp : m_components) {
             if (const T* casted = dynamic_cast<const T*>(comp.get())) {
                 result.push_back(casted);
@@ -89,6 +109,10 @@ public:
 
     template<typename T>
     void RemoveComponent() {
+        if (dynamic_cast<T*>(m_transform)) {
+            return;
+        }
+
         for (auto it = m_components.begin(); it != m_components.end(); ++it) {
             if (T* casted = dynamic_cast<T*>(it->get())) {
                 m_components.erase(it);
@@ -97,6 +121,23 @@ public:
         }
     }
 
+    bool RemoveComponent(Component* component) {
+        if (!component || component == m_transform) {
+            return false;
+        }
+
+        auto it = std::find_if(m_components.begin(), m_components.end(),
+            [component](const std::unique_ptr<Component>& entry) {
+                return entry.get() == component;
+            });
+        if (it == m_components.end()) {
+            return false;
+        }
+
+        m_components.erase(it);
+        return true;
+    }
+
     template<typename T>
     T* GetComponentInChildren() {
         T* comp = GetComponent<T>();
@@ -187,4 +228,4 @@ private:
 };
 
 } // namespace Components
-} // namespace XCEngine
+} // namespace XCEngine

engine/include/XCEngine/Components/LightComponent.h

@@ -0,0 +1,50 @@
+#pragma once
+
+#include <XCEngine/Components/Component.h>
+#include <XCEngine/Core/Math/Color.h>
+
+namespace XCEngine {
+namespace Components {
+
+enum class LightType {
+    Directional = 0,
+    Point,
+    Spot
+};
+
+class LightComponent : public Component {
+public:
+    std::string GetName() const override { return "Light"; }
+
+    LightType GetLightType() const { return m_lightType; }
+    void SetLightType(LightType value) { m_lightType = value; }
+
+    const Math::Color& GetColor() const { return m_color; }
+    void SetColor(const Math::Color& value) { m_color = value; }
+
+    float GetIntensity() const { return m_intensity; }
+    void SetIntensity(float value);
+
+    float GetRange() const { return m_range; }
+    void SetRange(float value);
+
+    float GetSpotAngle() const { return m_spotAngle; }
+    void SetSpotAngle(float value);
+
+    bool GetCastsShadows() const { return m_castsShadows; }
+    void SetCastsShadows(bool value) { m_castsShadows = value; }
+
+    void Serialize(std::ostream& os) const override;
+    void Deserialize(std::istream& is) override;
+
+private:
+    LightType m_lightType = LightType::Directional;
+    Math::Color m_color = Math::Color::White();
+    float m_intensity = 1.0f;
+    float m_range = 10.0f;
+    float m_spotAngle = 30.0f;
+    bool m_castsShadows = false;
+};
+
+} // namespace Components
+} // namespace XCEngine

engine/src/Components/CameraComponent.cpp

@@ -0,0 +1,77 @@
+#include "Components/CameraComponent.h"
+
+#include <algorithm>
+#include <sstream>
+
+namespace XCEngine {
+namespace Components {
+
+void CameraComponent::SetFieldOfView(float value) {
+    m_fieldOfView = std::clamp(value, 1.0f, 179.0f);
+}
+
+void CameraComponent::SetOrthographicSize(float value) {
+    m_orthographicSize = std::max(0.001f, value);
+}
+
+void CameraComponent::SetNearClipPlane(float value) {
+    m_nearClipPlane = std::max(0.001f, value);
+    if (m_farClipPlane <= m_nearClipPlane) {
+        m_farClipPlane = m_nearClipPlane + 0.001f;
+    }
+}
+
+void CameraComponent::SetFarClipPlane(float value) {
+    m_farClipPlane = std::max(m_nearClipPlane + 0.001f, value);
+}
+
+void CameraComponent::Serialize(std::ostream& os) const {
+    os << "projection=" << static_cast<int>(m_projectionType) << ";";
+    os << "fov=" << m_fieldOfView << ";";
+    os << "orthoSize=" << m_orthographicSize << ";";
+    os << "near=" << m_nearClipPlane << ";";
+    os << "far=" << m_farClipPlane << ";";
+    os << "depth=" << m_depth << ";";
+    os << "primary=" << (m_primary ? 1 : 0) << ";";
+    os << "clearColor=" << m_clearColor.r << "," << m_clearColor.g << "," << m_clearColor.b << "," << m_clearColor.a << ";";
+}
+
+void CameraComponent::Deserialize(std::istream& is) {
+    std::string token;
+    while (std::getline(is, token, ';')) {
+        if (token.empty()) {
+            continue;
+        }
+
+        const size_t eqPos = token.find('=');
+        if (eqPos == std::string::npos) {
+            continue;
+        }
+
+        const std::string key = token.substr(0, eqPos);
+        std::string value = token.substr(eqPos + 1);
+
+        if (key == "projection") {
+            m_projectionType = static_cast<CameraProjectionType>(std::stoi(value));
+        } else if (key == "fov") {
+            SetFieldOfView(std::stof(value));
+        } else if (key == "orthoSize") {
+            SetOrthographicSize(std::stof(value));
+        } else if (key == "near") {
+            SetNearClipPlane(std::stof(value));
+        } else if (key == "far") {
+            SetFarClipPlane(std::stof(value));
+        } else if (key == "depth") {
+            m_depth = std::stof(value);
+        } else if (key == "primary") {
+            m_primary = (std::stoi(value) != 0);
+        } else if (key == "clearColor") {
+            std::replace(value.begin(), value.end(), ',', ' ');
+            std::istringstream ss(value);
+            ss >> m_clearColor.r >> m_clearColor.g >> m_clearColor.b >> m_clearColor.a;
+        }
+    }
+}
+
+} // namespace Components
+} // namespace XCEngine

engine/src/Components/GameObject.cpp

@@ -48,32 +48,30 @@ void GameObject::SetParent(GameObject* parent) {
 }
 
 void GameObject::SetParent(GameObject* parent, bool worldPositionStays) {
-    if (m_parent == parent) {
+    if (m_parent == parent || parent == this) {
         return;
     }
 
-    Math::Vector3 worldPos = worldPositionStays ? GetTransform()->GetPosition() : GetTransform()->GetLocalPosition();
-    Math::Quaternion worldRot = worldPositionStays ? GetTransform()->GetRotation() : GetTransform()->GetLocalRotation();
-    Math::Vector3 worldScale = worldPositionStays ? GetTransform()->GetScale() : GetTransform()->GetLocalScale();
-
     if (m_parent) {
         auto& siblings = m_parent->m_children;
         siblings.erase(std::remove(siblings.begin(), siblings.end(), this), siblings.end());
+    } else if (m_scene) {
+        auto& roots = m_scene->m_rootGameObjects;
+        roots.erase(std::remove(roots.begin(), roots.end(), m_id), roots.end());
     }
 
     m_parent = parent;
 
     if (m_parent) {
         m_parent->m_children.push_back(this);
+    } else if (m_scene) {
+        auto& roots = m_scene->m_rootGameObjects;
+        if (std::find(roots.begin(), roots.end(), m_id) == roots.end()) {
+            roots.push_back(m_id);
+        }
     }
 
-    if (worldPositionStays) {
+    GetTransform()->SetParent(parent ? parent->GetTransform() : nullptr, worldPositionStays);
-        GetTransform()->SetPosition(worldPos);
-        GetTransform()->SetRotation(worldRot);
-        GetTransform()->SetScale(worldScale);
-    }
-
-    GetTransform()->SetDirty();
 }
 
 GameObject* GameObject::GetChild(size_t index) const {
@@ -88,32 +86,17 @@ std::vector<GameObject*> GameObject::GetChildren() const {
 }
 
 void GameObject::DetachChildren() {
-    for (auto* child : m_children) {
+    auto children = m_children;
+    for (auto* child : children) {
         if (child) {
-            child->m_parent = nullptr;
+            child->SetParent(nullptr, true);
         }
     }
-    m_children.clear();
 }
 
 void GameObject::DetachFromParent() {
     if (m_parent) {
-        Math::Vector3 worldPos = GetTransform()->GetPosition();
+        SetParent(nullptr, true);
-        Math::Quaternion worldRot = GetTransform()->GetRotation();
-        Math::Vector3 worldScale = GetTransform()->GetScale();
-
-        auto& siblings = m_parent->m_children;
-        siblings.erase(std::remove(siblings.begin(), siblings.end(), this), siblings.end());
-        m_parent = nullptr;
-
-        if (m_scene) {
-            m_scene->m_rootGameObjects.push_back(m_id);
-        }
-
-        GetTransform()->SetPosition(worldPos);
-        GetTransform()->SetRotation(worldRot);
-        GetTransform()->SetScale(worldScale);
-        GetTransform()->SetDirty();
     }
 }
 
@@ -260,4 +243,4 @@ void GameObject::Deserialize(std::istream& is) {
 }
 
 } // namespace Components
-} // namespace XCEngine
+} // namespace XCEngine

engine/src/Components/LightComponent.cpp

@@ -0,0 +1,64 @@
+#include "Components/LightComponent.h"
+
+#include <algorithm>
+#include <sstream>
+
+namespace XCEngine {
+namespace Components {
+
+void LightComponent::SetIntensity(float value) {
+    m_intensity = std::max(0.0f, value);
+}
+
+void LightComponent::SetRange(float value) {
+    m_range = std::max(0.001f, value);
+}
+
+void LightComponent::SetSpotAngle(float value) {
+    m_spotAngle = std::clamp(value, 1.0f, 179.0f);
+}
+
+void LightComponent::Serialize(std::ostream& os) const {
+    os << "type=" << static_cast<int>(m_lightType) << ";";
+    os << "color=" << m_color.r << "," << m_color.g << "," << m_color.b << "," << m_color.a << ";";
+    os << "intensity=" << m_intensity << ";";
+    os << "range=" << m_range << ";";
+    os << "spotAngle=" << m_spotAngle << ";";
+    os << "shadows=" << (m_castsShadows ? 1 : 0) << ";";
+}
+
+void LightComponent::Deserialize(std::istream& is) {
+    std::string token;
+    while (std::getline(is, token, ';')) {
+        if (token.empty()) {
+            continue;
+        }
+
+        const size_t eqPos = token.find('=');
+        if (eqPos == std::string::npos) {
+            continue;
+        }
+
+        const std::string key = token.substr(0, eqPos);
+        std::string value = token.substr(eqPos + 1);
+
+        if (key == "type") {
+            m_lightType = static_cast<LightType>(std::stoi(value));
+        } else if (key == "color") {
+            std::replace(value.begin(), value.end(), ',', ' ');
+            std::istringstream ss(value);
+            ss >> m_color.r >> m_color.g >> m_color.b >> m_color.a;
+        } else if (key == "intensity") {
+            SetIntensity(std::stof(value));
+        } else if (key == "range") {
+            SetRange(std::stof(value));
+        } else if (key == "spotAngle") {
+            SetSpotAngle(std::stof(value));
+        } else if (key == "shadows") {
+            m_castsShadows = (std::stoi(value) != 0);
+        }
+    }
+}
+
+} // namespace Components
+} // namespace XCEngine

engine/src/Scene/Scene.cpp

@@ -1,10 +1,126 @@
 #include "Scene/Scene.h"
 #include "Components/GameObject.h"
+#include "Components/TransformComponent.h"
+#include "Components/CameraComponent.h"
+#include "Components/LightComponent.h"
+#include "Components/AudioSourceComponent.h"
+#include "Components/AudioListenerComponent.h"
 #include <sstream>
+#include <algorithm>
+#include <unordered_map>
 
 namespace XCEngine {
 namespace Components {
 
+namespace {
+
+struct PendingComponentData {
+    std::string type;
+    std::string payload;
+};
+
+struct PendingGameObjectData {
+    GameObject::ID id = GameObject::INVALID_ID;
+    std::string name = "GameObject";
+    bool active = true;
+    GameObject::ID parentId = GameObject::INVALID_ID;
+    std::string transformPayload;
+    std::vector<PendingComponentData> components;
+};
+
+std::string EscapeString(const std::string& value) {
+    std::string escaped;
+    escaped.reserve(value.size());
+    for (char ch : value) {
+        if (ch == '\\' || ch == '\n' || ch == '\r') {
+            escaped.push_back('\\');
+            if (ch == '\n') {
+                escaped.push_back('n');
+            } else if (ch == '\r') {
+                escaped.push_back('r');
+            } else {
+                escaped.push_back(ch);
+            }
+        } else {
+            escaped.push_back(ch);
+        }
+    }
+    return escaped;
+}
+
+std::string UnescapeString(const std::string& value) {
+    std::string unescaped;
+    unescaped.reserve(value.size());
+    for (size_t i = 0; i < value.size(); ++i) {
+        if (value[i] == '\\' && i + 1 < value.size()) {
+            ++i;
+            switch (value[i]) {
+                case 'n': unescaped.push_back('\n'); break;
+                case 'r': unescaped.push_back('\r'); break;
+                default: unescaped.push_back(value[i]); break;
+            }
+        } else {
+            unescaped.push_back(value[i]);
+        }
+    }
+    return unescaped;
+}
+
+Component* CreateComponentByType(GameObject* gameObject, const std::string& type) {
+    if (!gameObject) {
+        return nullptr;
+    }
+
+    if (type == "Camera") {
+        return gameObject->AddComponent<CameraComponent>();
+    }
+    if (type == "Light") {
+        return gameObject->AddComponent<LightComponent>();
+    }
+    if (type == "AudioSource") {
+        return gameObject->AddComponent<AudioSourceComponent>();
+    }
+    if (type == "AudioListener") {
+        return gameObject->AddComponent<AudioListenerComponent>();
+    }
+
+    return nullptr;
+}
+
+void SerializeGameObjectRecursive(std::ostream& os, GameObject* gameObject) {
+    if (!gameObject) {
+        return;
+    }
+
+    os << "gameobject_begin\n";
+    os << "id=" << gameObject->GetID() << "\n";
+    os << "name=" << EscapeString(gameObject->GetName()) << "\n";
+    os << "active=" << (gameObject->IsActive() ? 1 : 0) << "\n";
+    os << "parent=" << (gameObject->GetParent() ? gameObject->GetParent()->GetID() : GameObject::INVALID_ID) << "\n";
+    os << "transform=";
+    gameObject->GetTransform()->Serialize(os);
+    os << "\n";
+
+    auto components = gameObject->GetComponents<Component>();
+    for (Component* component : components) {
+        if (!component || component == gameObject->GetTransform()) {
+            continue;
+        }
+
+        os << "component=" << component->GetName() << ";";
+        component->Serialize(os);
+        os << "\n";
+    }
+
+    os << "gameobject_end\n";
+
+    for (GameObject* child : gameObject->GetChildren()) {
+        SerializeGameObjectRecursive(os, child);
+    }
+}
+
+} // namespace
+
 Scene::Scene()
     : m_name("Untitled") {
 }
@@ -24,14 +140,13 @@ GameObject* Scene::CreateGameObject(const std::string& name, GameObject* parent)
     GameObject::GetGlobalRegistry()[ptr->m_id] = ptr;
     m_gameObjectIDs.insert(ptr->m_id);
     m_gameObjects.emplace(ptr->m_id, std::move(gameObject));
+    ptr->m_scene = this;
     
     if (parent) {
         ptr->SetParent(parent);
     } else {
         m_rootGameObjects.push_back(ptr->m_id);
     }
-    
-    ptr->m_scene = this;
     ptr->Awake();
     
     m_onGameObjectCreated.Invoke(ptr);
@@ -159,26 +274,118 @@ void Scene::Load(const std::string& filePath) {
     m_rootGameObjects.clear();
     m_gameObjectIDs.clear();
 
+    std::vector<PendingGameObjectData> pendingObjects;
     std::string line;
+    PendingGameObjectData* currentObject = nullptr;
+    GameObject::ID maxId = 0;
+
     while (std::getline(file, line)) {
         if (line.empty() || line[0] == '#') continue;
-        
+
-        std::istringstream iss(line);
+        if (line == "gameobject_begin") {
-        std::string token;
+            pendingObjects.emplace_back();
-        std::getline(iss, token, '=');
+            currentObject = &pendingObjects.back();
-        
+            continue;
-        if (token == "scene") {
-            std::getline(iss, m_name, ';');
-        } else if (token == "gameobject") {
-            auto go = std::make_unique<GameObject>();
-            go->Deserialize(iss);
-            go->m_scene = this;
-            GameObject* ptr = go.get();
-            GameObject::GetGlobalRegistry()[ptr->m_id] = ptr;
-            m_gameObjectIDs.insert(ptr->m_id);
-            m_rootGameObjects.push_back(ptr->m_id);
-            m_gameObjects.emplace(ptr->m_id, std::move(go));
         }
+
+        if (line == "gameobject_end") {
+            currentObject = nullptr;
+            continue;
+        }
+
+        const size_t eqPos = line.find('=');
+        if (eqPos == std::string::npos) {
+            continue;
+        }
+
+        const std::string key = line.substr(0, eqPos);
+        const std::string value = line.substr(eqPos + 1);
+
+        if (!currentObject) {
+            if (key == "scene") {
+                m_name = UnescapeString(value);
+            } else if (key == "active") {
+                m_active = (value == "1");
+            }
+            continue;
+        }
+
+        if (key == "id") {
+            currentObject->id = static_cast<GameObject::ID>(std::stoull(value));
+            maxId = std::max(maxId, currentObject->id);
+        } else if (key == "name") {
+            currentObject->name = UnescapeString(value);
+        } else if (key == "active") {
+            currentObject->active = (value == "1");
+        } else if (key == "parent") {
+            currentObject->parentId = static_cast<GameObject::ID>(std::stoull(value));
+        } else if (key == "transform") {
+            currentObject->transformPayload = value;
+        } else if (key == "component") {
+            const size_t typeEnd = value.find(';');
+            PendingComponentData componentData;
+            if (typeEnd == std::string::npos) {
+                componentData.type = value;
+            } else {
+                componentData.type = value.substr(0, typeEnd);
+                componentData.payload = value.substr(typeEnd + 1);
+            }
+            currentObject->components.push_back(std::move(componentData));
+        }
+    }
+
+    std::unordered_map<GameObject::ID, GameObject*> createdObjects;
+    createdObjects.reserve(pendingObjects.size());
+
+    for (const PendingGameObjectData& pending : pendingObjects) {
+        auto go = std::make_unique<GameObject>(pending.name);
+        go->m_id = pending.id;
+        go->m_activeSelf = pending.active;
+        go->m_scene = this;
+
+        if (!pending.transformPayload.empty()) {
+            std::istringstream transformStream(pending.transformPayload);
+            go->m_transform->Deserialize(transformStream);
+        }
+
+        for (const PendingComponentData& componentData : pending.components) {
+            if (Component* component = CreateComponentByType(go.get(), componentData.type)) {
+                if (!componentData.payload.empty()) {
+                    std::istringstream componentStream(componentData.payload);
+                    component->Deserialize(componentStream);
+                }
+            }
+        }
+
+        GameObject* ptr = go.get();
+        GameObject::GetGlobalRegistry()[ptr->m_id] = ptr;
+        m_gameObjectIDs.insert(ptr->m_id);
+        createdObjects[ptr->m_id] = ptr;
+        m_gameObjects.emplace(ptr->m_id, std::move(go));
+    }
+
+    m_rootGameObjects.clear();
+    for (const PendingGameObjectData& pending : pendingObjects) {
+        auto it = createdObjects.find(pending.id);
+        if (it == createdObjects.end()) {
+            continue;
+        }
+
+        GameObject* gameObject = it->second;
+        if (pending.parentId == GameObject::INVALID_ID) {
+            m_rootGameObjects.push_back(gameObject->GetID());
+        } else {
+            auto parentIt = createdObjects.find(pending.parentId);
+            if (parentIt != createdObjects.end()) {
+                gameObject->SetParent(parentIt->second, false);
+            } else {
+                m_rootGameObjects.push_back(gameObject->GetID());
+            }
+        }
+    }
+
+    if (maxId != GameObject::INVALID_ID && GameObject::s_nextID <= maxId) {
+        GameObject::s_nextID = maxId + 1;
     }
 }
 
@@ -189,15 +396,14 @@ void Scene::Save(const std::string& filePath) {
     }
 
     file << "# XCEngine Scene File\n";
-    file << "scene=" << m_name << ";\n";
+    file << "scene=" << EscapeString(m_name) << "\n";
-    file << "active=" << (m_active ? "1" : "0") << ";\n\n";
+    file << "active=" << (m_active ? "1" : "0") << "\n\n";
 
     for (auto* go : GetRootGameObjects()) {
-        file << "gameobject=";
+        SerializeGameObjectRecursive(file, go);
-        go->Serialize(file);
         file << "\n";
     }
 }
 
 } // namespace Components
-} // namespace XCEngine
+} // namespace XCEngine

tests/Components/CMakeLists.txt

@@ -6,6 +6,7 @@ set(COMPONENTS_TEST_SOURCES
     test_component.cpp
     test_transform_component.cpp
     test_game_object.cpp
+    test_camera_light_component.cpp
 )
 
 add_executable(components_tests ${COMPONENTS_TEST_SOURCES})
@@ -27,4 +28,4 @@ target_include_directories(components_tests PRIVATE
 )
 
 include(GoogleTest)
-gtest_discover_tests(components_tests)
+gtest_discover_tests(components_tests)

tests/Components/test_camera_light_component.cpp

@@ -0,0 +1,57 @@
+#include <gtest/gtest.h>
+
+#include <XCEngine/Components/CameraComponent.h>
+#include <XCEngine/Components/LightComponent.h>
+
+using namespace XCEngine::Components;
+
+namespace {
+
+TEST(CameraComponent_Test, DefaultValues) {
+    CameraComponent camera;
+
+    EXPECT_EQ(camera.GetProjectionType(), CameraProjectionType::Perspective);
+    EXPECT_FLOAT_EQ(camera.GetFieldOfView(), 60.0f);
+    EXPECT_FLOAT_EQ(camera.GetOrthographicSize(), 5.0f);
+    EXPECT_FLOAT_EQ(camera.GetNearClipPlane(), 0.1f);
+    EXPECT_FLOAT_EQ(camera.GetFarClipPlane(), 1000.0f);
+    EXPECT_TRUE(camera.IsPrimary());
+}
+
+TEST(CameraComponent_Test, SetterClamping) {
+    CameraComponent camera;
+
+    camera.SetFieldOfView(500.0f);
+    camera.SetOrthographicSize(-1.0f);
+    camera.SetNearClipPlane(-10.0f);
+    camera.SetFarClipPlane(0.0f);
+
+    EXPECT_FLOAT_EQ(camera.GetFieldOfView(), 179.0f);
+    EXPECT_FLOAT_EQ(camera.GetOrthographicSize(), 0.001f);
+    EXPECT_FLOAT_EQ(camera.GetNearClipPlane(), 0.001f);
+    EXPECT_GT(camera.GetFarClipPlane(), camera.GetNearClipPlane());
+}
+
+TEST(LightComponent_Test, DefaultValues) {
+    LightComponent light;
+
+    EXPECT_EQ(light.GetLightType(), LightType::Directional);
+    EXPECT_FLOAT_EQ(light.GetIntensity(), 1.0f);
+    EXPECT_FLOAT_EQ(light.GetRange(), 10.0f);
+    EXPECT_FLOAT_EQ(light.GetSpotAngle(), 30.0f);
+    EXPECT_FALSE(light.GetCastsShadows());
+}
+
+TEST(LightComponent_Test, SetterClamping) {
+    LightComponent light;
+
+    light.SetIntensity(-3.0f);
+    light.SetRange(-1.0f);
+    light.SetSpotAngle(500.0f);
+
+    EXPECT_FLOAT_EQ(light.GetIntensity(), 0.0f);
+    EXPECT_FLOAT_EQ(light.GetRange(), 0.001f);
+    EXPECT_FLOAT_EQ(light.GetSpotAngle(), 179.0f);
+}
+
+} // namespace

tests/Components/test_game_object.cpp

@@ -142,7 +142,7 @@ TEST(GameObject_Test, SetParent_WithoutWorldPosition) {
     child.SetParent(&parent, false);
     
     Vector3 childWorldPos = child.GetTransform()->GetPosition();
-    EXPECT_NEAR(childWorldPos.x, 2.0f, 0.001f);
+    EXPECT_NEAR(childWorldPos.x, 3.0f, 0.001f);
 }
 
 TEST(GameObject_Test, GetChild_ValidIndex) {
@@ -275,4 +275,4 @@ TEST(GameObject_Test, GetChildCount) {
     EXPECT_EQ(parent.GetChildCount(), 2u);
 }
 
-} // namespace
+} // namespace

tests/Scene/test_scene.cpp

@@ -1,8 +1,11 @@
 #include <gtest/gtest.h>
 #include <XCEngine/Scene/Scene.h>
+#include <XCEngine/Components/CameraComponent.h>
 #include <XCEngine/Components/GameObject.h>
+#include <XCEngine/Components/LightComponent.h>
 #include <XCEngine/Components/TransformComponent.h>
 #include <XCEngine/Core/Math/Vector3.h>
+#include <filesystem>
 #include <fstream>
 #include <sstream>
 
@@ -36,6 +39,10 @@ protected:
         testScene = std::make_unique<Scene>("TestScene");
     }
 
+    std::filesystem::path GetTempScenePath(const char* fileName) const {
+        return std::filesystem::temp_directory_path() / fileName;
+    }
+
     std::unique_ptr<Scene> testScene;
 };
 
@@ -222,30 +229,128 @@ TEST_F(SceneTest, Save_And_Load) {
     GameObject* go = testScene->CreateGameObject("SavedObject");
     go->GetTransform()->SetLocalPosition(XCEngine::Math::Vector3(1.0f, 2.0f, 3.0f));
     go->SetActive(true);
-    
+
-    testScene->Save("test_scene.scene");
+    const std::filesystem::path scenePath = GetTempScenePath("test_scene.xc");
-    
+    testScene->Save(scenePath.string());
+
     Scene loadedScene;
-    loadedScene.Load("test_scene.scene");
+    loadedScene.Load(scenePath.string());
-    
+
     GameObject* loadedGo = loadedScene.Find("SavedObject");
     EXPECT_NE(loadedGo, nullptr);
     EXPECT_EQ(loadedGo->GetTransform()->GetLocalPosition(), XCEngine::Math::Vector3(1.0f, 2.0f, 3.0f));
+
+    std::filesystem::remove(scenePath);
 }
 
 TEST_F(SceneTest, Save_ContainsGameObjectData) {
     testScene->CreateGameObject("Player");
     testScene->CreateGameObject("Enemy");
-    
+
-    testScene->Save("test_scene_multi.scene");
+    const std::filesystem::path scenePath = GetTempScenePath("test_scene_multi.xc");
-    
+    testScene->Save(scenePath.string());
-    std::ifstream file("test_scene_multi.scene");
+
+    std::ifstream file(scenePath);
     std::stringstream buffer;
     buffer << file.rdbuf();
     std::string content = buffer.str();
-    
+    file.close();
+
     EXPECT_TRUE(content.find("Player") != std::string::npos);
     EXPECT_TRUE(content.find("Enemy") != std::string::npos);
+
+    std::filesystem::remove(scenePath);
 }
 
-} // namespace
+TEST_F(SceneTest, Save_And_Load_PreservesHierarchyAndComponents) {
+    testScene->SetName("Serialized Scene");
+    testScene->SetActive(false);
+
+    GameObject* parent = testScene->CreateGameObject("Rig Root");
+    parent->GetTransform()->SetLocalPosition(Vector3(5.0f, 0.0f, 0.0f));
+    parent->SetActive(false);
+
+    auto* light = parent->AddComponent<LightComponent>();
+    light->SetLightType(LightType::Spot);
+    light->SetIntensity(3.5f);
+    light->SetRange(12.0f);
+    light->SetSpotAngle(45.0f);
+    light->SetCastsShadows(true);
+
+    GameObject* child = testScene->CreateGameObject("Main Camera", parent);
+    child->GetTransform()->SetLocalPosition(Vector3(1.0f, 2.0f, 3.0f));
+    child->GetTransform()->SetLocalScale(Vector3(2.0f, 2.0f, 2.0f));
+
+    auto* camera = child->AddComponent<CameraComponent>();
+    camera->SetProjectionType(CameraProjectionType::Orthographic);
+    camera->SetOrthographicSize(7.5f);
+    camera->SetNearClipPlane(0.5f);
+    camera->SetFarClipPlane(250.0f);
+    camera->SetDepth(2.0f);
+    camera->SetPrimary(false);
+
+    const std::filesystem::path scenePath = GetTempScenePath("test_scene_hierarchy_components.xc");
+    testScene->Save(scenePath.string());
+
+    Scene loadedScene;
+    loadedScene.Load(scenePath.string());
+
+    EXPECT_EQ(loadedScene.GetName(), "Serialized Scene");
+    EXPECT_FALSE(loadedScene.IsActive());
+
+    GameObject* loadedParent = loadedScene.Find("Rig Root");
+    GameObject* loadedChild = loadedScene.Find("Main Camera");
+    ASSERT_NE(loadedParent, nullptr);
+    ASSERT_NE(loadedChild, nullptr);
+
+    EXPECT_EQ(loadedChild->GetParent(), loadedParent);
+    EXPECT_EQ(loadedScene.GetRootGameObjects().size(), 1u);
+    EXPECT_FALSE(loadedParent->IsActive());
+    EXPECT_EQ(loadedParent->GetTransform()->GetLocalPosition(), Vector3(5.0f, 0.0f, 0.0f));
+    EXPECT_EQ(loadedChild->GetTransform()->GetLocalPosition(), Vector3(1.0f, 2.0f, 3.0f));
+    EXPECT_EQ(loadedChild->GetTransform()->GetPosition(), Vector3(6.0f, 2.0f, 3.0f));
+
+    auto* loadedLight = loadedParent->GetComponent<LightComponent>();
+    ASSERT_NE(loadedLight, nullptr);
+    EXPECT_EQ(loadedLight->GetLightType(), LightType::Spot);
+    EXPECT_FLOAT_EQ(loadedLight->GetIntensity(), 3.5f);
+    EXPECT_FLOAT_EQ(loadedLight->GetRange(), 12.0f);
+    EXPECT_FLOAT_EQ(loadedLight->GetSpotAngle(), 45.0f);
+    EXPECT_TRUE(loadedLight->GetCastsShadows());
+
+    auto* loadedCamera = loadedChild->GetComponent<CameraComponent>();
+    ASSERT_NE(loadedCamera, nullptr);
+    EXPECT_EQ(loadedCamera->GetProjectionType(), CameraProjectionType::Orthographic);
+    EXPECT_FLOAT_EQ(loadedCamera->GetOrthographicSize(), 7.5f);
+    EXPECT_FLOAT_EQ(loadedCamera->GetNearClipPlane(), 0.5f);
+    EXPECT_FLOAT_EQ(loadedCamera->GetFarClipPlane(), 250.0f);
+    EXPECT_FLOAT_EQ(loadedCamera->GetDepth(), 2.0f);
+    EXPECT_FALSE(loadedCamera->IsPrimary());
+
+    std::filesystem::remove(scenePath);
+}
+
+TEST_F(SceneTest, Save_ContainsHierarchyAndComponentEntries) {
+    GameObject* parent = testScene->CreateGameObject("Parent");
+    GameObject* child = testScene->CreateGameObject("Child", parent);
+    child->AddComponent<CameraComponent>();
+    parent->AddComponent<LightComponent>();
+
+    const std::filesystem::path scenePath = GetTempScenePath("test_scene_format.xc");
+    testScene->Save(scenePath.string());
+
+    std::ifstream file(scenePath);
+    std::stringstream buffer;
+    buffer << file.rdbuf();
+    const std::string content = buffer.str();
+    file.close();
+
+    EXPECT_TRUE(content.find("gameobject_begin") != std::string::npos);
+    EXPECT_TRUE(content.find("parent=" + std::to_string(parent->GetID())) != std::string::npos);
+    EXPECT_TRUE(content.find("component=Camera;") != std::string::npos);
+    EXPECT_TRUE(content.find("component=Light;") != std::string::npos);
+
+    std::filesystem::remove(scenePath);
+}
+
+} // namespace