[add]: 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..2d368d7
--- /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 OnEnter()                 = 0;
+        virtual void OnExit()                  = 0;
+        virtual void OnUpdate(float deltaTime) = 0;
+        virtual void OnRender()                = 0;
+        virtual void OnEvent(Event& event)     = 0;
+    };
+};
\ No newline at end of file