Consultation on programming in C#, Unity?

Question

Unity

I need a full explanation of how the life system works in Unity games. All sorts of health bars and the like do not count, there are plenty of them on YouTube. I'm talking about a real system that is used in real 3d online games on Unity.
In my case, the difficulty is caused by a bunch of code from different scripts. Namely:
1. To whom is the health script attached? Is it just a script on an empty object in the scene that is inherited or instantiated through a given constructor by other objects that require health to be created for themselves? And everything like that.
The explanation should be along with the full code. Code without any crutches, of course. Literacy of your code is immediately visible.
After your consultation, I should understand how and create a ready-made health system for the game.

I often need answers to such questions, I am ready to pay for every 500 rubles.

Answer 1

AT

real 3d online games on Unity

apply what is in principle capable of solving the problem. If a simple example from YouTube suits - it's ok. If you don't like it, you need to rewrite it.