fixing put pixel, adding scene change checker

runtime/Includes/Utils/CallOnExit.h

@@ -0,0 +1,33 @@
+#ifndef __MLX_CALL_ON_EXIT__
+#define __MLX_CALL_ON_EXIT__
+
+namespace mlx
+{
+	template <typename F>
+	class CallOnExit
+	{
+		public:
+			CallOnExit() = default;
+			CallOnExit(F&& functor);
+			CallOnExit(const CallOnExit&) = delete;
+			CallOnExit(CallOnExit&&) = delete;
+
+			void CallAndReset();
+			void Reset();
+
+			CallOnExit& operator=(const CallOnExit&) = delete;
+			CallOnExit& operator=(CallOnExit&&) = default;
+
+			~CallOnExit();
+
+		private:
+			std::optional<F> m_functor;
+	};
+
+	template<typename F>
+	CallOnExit(F) -> CallOnExit<F>;
+}
+
+#include <Utils/CallOnExit.inl>
+
+#endif