feat: state manager

1 files changed, 18 insertions, 0 deletions

diff --git a/src/core/state.h b/src/core/state.h
new file mode 100644
index 0000000..f5d808a
--- /dev/null
+++ b/src/core/state.h
@@ -0,0 +1,18 @@
+#pragma once
+
+#include "event.h"
+
+namespace Donut
+{
+    class State
+    {
+    public:
+        virtual ~State() = default;
+        
+        virtual void on_enter()                 = 0;
+        virtual void on_exit()                  = 0;
+        virtual void on_update(float delta_time) = 0;
+        virtual void on_render()                = 0;
+        virtual void on_event(Event& event)     = 0;
+    };
+};