private void Awake()
{
//singleton initialization
if (instance == null)
{
instance = this;
}
else if (instance != this)
{
Destroy(instance);
}
DontDestroyOnLoad(instance);
//set null current player on game awaked
AppController.instance.currentPlayer = null;
AppController.instance.allPlayerProgressData = null;
//save file path
Debug.Log(Application.persistentDataPath);
//holding camera values
cameraHeight = Camera.main.orthographicSize;
cameraWidth = cameraHeight * Camera.main.aspect;
//sets active screen to welcome
SetState(ApplicationStates.StartMenu);
//load game data from JSON
AppController.instance.dataController = new DataController();
AppController.instance.dataController.LoadGameData();
//tries to load saved game data if any exists from previous session(s)
ProgressController.LoadLastSession();
}