Class VS ref Struct

Question

I am programming a game using C#, thus, I am very concerned about performance.

I would like to know what are the main differences, and if possible, performance considera

Answer 1

Your delegate receives a reference type - a List, so you're passing the entire list by reference anyway.

Passing a large structure by value is definitely most expensive than passing just the reference. When you have a large structure, it usually doesn't make sense to use it as a structure, just turn it into a class.

Anyway, are you sure you'll have a performance issue here? Seems like a very premature optimization.