1 files changed, 39 insertions, 0 deletions
diff --git a/src/scene/scene.h b/src/scene/scene.h
new file mode 100644
index 0000000..27d1327
--- /dev/null
+++ b/src/scene/scene.h
@@ -0,0 +1,39 @@
+#pragma once
+
+#include "scene_types.h"
+#include "core/camera.h"
+
+#include <string>
+#include <vector>
+
+namespace Donut
+{
+    // The document: everything the app edits and renders, independent of any
+    // backend or UI. Workspaces (tabs) read and mutate this; the RenderPath reads
+    // it to draw. It owns the two viewpoints (cameras) as scene state, plus small
+    // camera-framing helpers, since a viewpoint is part of the document.
+    class Scene
+    {
+    public:
+        Scene();
+
+        // world-builder content
+        std::vector<SceneObject> objects{ SceneObject{} };
+        int selected_object = 0;
+
+        // black hole / accretion disk
+        BlackHoleParams black_hole;
+
+        // environment
+        std::string hdri_path = "assets/hdri/hdr_blue_nebulae_1.hdr";
+
+        // viewpoints
+        Camera sim_camera{ 60.0f, 16.0f / 9.0f, 0.1f, 100.0f };     // black-hole view
+        Camera scene_camera{ 45.0f, 16.0f / 9.0f, 0.1f, 1000.0f };  // world-builder view
+
+        // Camera framing helpers (the sim view supports orbital + free-fly).
+        auto reset_sim_camera() -> void;
+        auto set_free_fly(bool enabled) -> void;
+        auto is_free_fly() const -> bool { return sim_camera.get_camera_mode() == CameraMode::FPS; }
+    };
+}