Tested state changing

NothinFancy/src/include/IGamestate.h

@@ -1,13 +1,17 @@
 #pragma once
 
 namespace nf {
+	class Application;
+
 	class IGamestate {
 	public:
-		virtual void onEnter() = 0;
+		virtual void onEnter(Application* app) = 0;
 		virtual void onExit() = 0;
 
 		virtual void update() = 0;
 		virtual void render() = 0;
+
+		Application* m_app;
 	private:
 		//Resource identifier?
 	};

NothinFancy/src/include/IntroGamestate.h

@@ -1,15 +1,16 @@
+#pragma once
 #include "IGamestate.h"
 #include "Utility.h"
 
 namespace nf {
 	class IntroGamestate : public IGamestate {
 	public:
-		void onEnter() override;
+		void onEnter(Application* app) override;
 		void onExit() override;
 
 		void update() override;
 		void render() override;
 	private:
-
+		int counter;
 	};
 }

NothinFancy/src/include/NothinFancy.h

@@ -1,3 +1,5 @@
 //Master engine include (Is this even useful?)
 
-#include "Application.h"
+#include "Application.h"
+
+using namespace nf;