I feel like what you are doing is certainly 100% reasonable, so there must be some key step missing or setup missing, and I don’t see it from the code above. I’m sure that adding multiple listeners to an event did not magically stop working, so I have to conclude your code flow isn’t quite what you think it is.
To help gain more insight into your problem, I recommend liberally sprinkling (EVEN MORE!) Debug.Log() statements through your code to display information in realtime.
Doing this should help you answer these types of questions:
- is this code even running? which parts are running? how often does it run?
- what are the values of the variables involved? Are they initialized?
Knowing this information will help you reason about the behavior you are seeing.
You could also just display various important quantities in UI Text elements to watch them change as you playtest.
If you are running a mobile device you can also view the console output. Google for how on your particular mobile target.
Here’s an example of putting in a laser-focused Debug.Log() and how that can save you a TON of time wallowing around speculating what might be going wrong: