fixed input with keyboard and controller at the same time

main.cpp

@@ -72,6 +72,6 @@ SDL_AppResult SDL_AppIterate(void *appstate)
 /* This function runs once at shutdown. */
 void SDL_AppQuit(void *appstate, SDL_AppResult result)
 {
-    delete appstate;
+    delete (Game*)appstate;
     /* SDL will clean up the window/renderer for us. */
 }