refactor(editor): isolate engine service boundaries

editor/app/Services/Engine/EngineGameViewportBridge.cpp

@@ -0,0 +1,66 @@
+#include "Engine/EngineGameViewportBridge.h"
+
+#include <XCEngine/Scene/Scene.h>
+#include <XCEngine/Scene/SceneManager.h>
+
+#include <algorithm>
+#include <vector>
+
+namespace XCEngine::UI::Editor::App {
+
+namespace {
+
+using ::XCEngine::Components::Scene;
+using ::XCEngine::Components::SceneManager;
+
+Scene* ResolvePrimaryScene(SceneManager& sceneManager) {
+    if (Scene* activeScene = sceneManager.GetActiveScene();
+        activeScene != nullptr) {
+        return activeScene;
+    }
+
+    const std::vector<Scene*> scenes = sceneManager.GetAllScenes();
+    if (!scenes.empty() && scenes.front() != nullptr) {
+        sceneManager.SetActiveScene(scenes.front());
+        return scenes.front();
+    }
+
+    return nullptr;
+}
+
+} // namespace
+
+GameViewportFramePlanBuildStatus EngineGameViewportBridge::BuildFramePlans(
+    const ::XCEngine::Rendering::RenderContext& renderContext,
+    const ::XCEngine::Rendering::RenderSurface& surface,
+    std::vector<::XCEngine::Rendering::CameraStackFramePlan>& outFramePlans) {
+    outFramePlans.clear();
+
+    Scene* scene = ResolvePrimaryScene(SceneManager::Get());
+    if (scene == nullptr) {
+        return GameViewportFramePlanBuildStatus::NoActiveScene;
+    }
+
+    outFramePlans = m_gameViewportRenderer.BuildStackFramePlans(
+        *scene,
+        nullptr,
+        renderContext,
+        surface);
+    outFramePlans.erase(
+        std::remove_if(
+            outFramePlans.begin(),
+            outFramePlans.end(),
+            [](const auto& plan) { return !plan.IsValid(); }),
+        outFramePlans.end());
+    return outFramePlans.empty()
+        ? GameViewportFramePlanBuildStatus::NoRenderableCamera
+        : GameViewportFramePlanBuildStatus::Success;
+}
+
+bool EngineGameViewportBridge::RenderFramePlans(
+    const std::vector<::XCEngine::Rendering::CameraStackFramePlan>& framePlans) {
+    return !framePlans.empty() &&
+        m_gameViewportRenderer.Render(framePlans);
+}
+
+} // namespace XCEngine::UI::Editor::App