Initial late commit

open_engine/include/open_engine/application.hpp

@@ -0,0 +1,49 @@
+#ifndef APPLICATION_HPP
+#define APPLICATION_HPP
+
+#include "core.hpp"
+
+#include "events/application_event.hpp"
+#include "imgui/imgui_layer.hpp"
+#include "layer.hpp"
+#include "layer_stack.hpp"
+#include "window/window.hpp"
+#include <memory>
+
+namespace OpenEngine {
+    class OE_API Application
+    {
+        public:
+            Application();
+            virtual ~Application() = default;
+
+            void Run();
+
+            virtual void OnEvent(Event& event);
+
+            void PushLayer(Layer* layer);
+            void PushOverlay(Layer* overlay);
+
+            inline static Application& Get() { return *instance; }
+
+            inline Window& GetWindow() { return *window; }
+            inline void StopRunning() { running = false; }
+
+        private:
+            bool OnWindowClose(WindowCloseEvent& event);
+            bool OnWindowResize(WindowResizeEvent& event);
+
+            inline static Application* instance;
+
+            bool running = true;
+            std::unique_ptr<Window> window;
+
+            ImGuiLayer* imgui_layer;
+            LayerStack layer_stack;
+    };
+
+    // Is defined by client
+    Application* CreateApplication();
+}
+
+#endif // APPLICATION_HPP