I have created a state manager and 4 empty states already setup to work with the state manager. These 4 states are the loading, menu, gameplay, and pause states, and I have set the manger up with a template state class so it's easy to create more states. There is a new Util class that I will add to as the need for it increases, as of now I have a random number generator set up and a random prime number generator still in development. I have updated the resource manager even more and while the actual manager hasn't changed much, I have implemented a new loading function where you can specify all of your sprites, textures, and other resources all in one file and the manager loads everything at startup. You simply include the resource holder header file in all your other cpp files to use the resources. At this point the main game class is also nearly complete, I still need to play around with it a bit more to finish it but as of now the game engine is far enough in development to start being used for making games. 

Good Luck Creating 👍