adding editor

editor/include/view_layer.hpp

@@ -0,0 +1,28 @@
+#ifndef VIEW_LAYER_HPP
+#define VIEW_LAYER_HPP
+
+#include <open_engine.hpp>
+
+class ViewLayer : public OpenEngine::Layer
+{
+    public:
+        ViewLayer(const char* layer_name, float ratio, float zoom_level)
+            : OpenEngine::Layer(layer_name),
+            camera(ratio, zoom_level)
+        {
+        }
+
+        OpenEngine::Ref<OpenEngine::FrameBuffer>& GetFramebuffer() { return framebuffer; };
+        OpenEngine::OrthographicCameraController& GetCamera() { return camera; };
+
+        void SetCursorPos(const glm::vec2& pos) { cursor_position = pos; };
+        const glm::vec2& GetCursorPos() { return cursor_position; };
+
+    private:
+        OpenEngine::Ref<OpenEngine::FrameBuffer> framebuffer;
+        OpenEngine::OrthographicCameraController camera;
+
+        glm::vec2 cursor_position = { 0.0f, 0.0f };
+};
+
+#endif // VIEW_LAYER_HPP