Giving objects unique ids onStart

Question

I have a bunch of gameObjects that I am assigning unique ids to in the Start function.

void Start() {
    UniqueID = String.Format("{0:X}", DateTime.Now.Ticks);
}

I thought this would work but every now and then I get duplicate ids. How can I make sure that they are always unique?

Answer 1

I would use a guid.

UniqueID = Guid.NewGuid.ToString();

Using your suggestion, 2 instances running at same time, may apply the same "unique" UniqueID to 2 different objects.

Guid should be unique even across instances.