During the lecture there was a mini challenge with some hints how to make music player. I came up with this idea:
https://pastebin.com/kygZXUz2
It works, but I’m not sure if Ben’s code is better in some way. I would be happy if anyone can explain benefits of doing it in the way presented during the lecture.
It does work, although, if you’re going to do it that way, you should use a bool. You’re essentially using count as a bool and setting it to either 1 or 0. It’d be more clear what you’re doing if you had a bool called isCreated or something along those lines and set it to true or false.
In general though, keeping track of a MusicPlayer instance would be the standard way to go. Especially if you needed to call methods on it or access its properties. In this game, we just call GameObject.DontDestroyOnLoad(gameObject);, and we don’t actually use the MusicPlayer for anything, so your example works fine…but imagine if we wanted to change the volume of the MusicPlayer's AudioSource at run-time for some reason…then we’d need to keep track of the instance.