public void Restart()
    {
        // Call and pass in data from text entry
        int numberofballs = Convert.ToInt32(inpfield.text);

        Resume(); // Resume Application

        // Pass to class
        ECS_Runner.numOfEntities = numberofballs;
        ECS_Runner.shouldRestart = true;                 // Toggle Restart operation
        inpfield.text            = "";                   // Clear inputfield
        ECS_Runner.CleanUp();                            // Run Cleanup operation
        SceneManager.LoadScene((int)SceneList.ECS_ONLY); // Reload current scene
    }
 public void ReturnToMainMenu()
 {
     ECS_Runner.CleanUp();                              // Run Cleanup operation
     SceneManager.LoadScene((int)SceneList.START_MENU); // Load Start Menu
 }