How does Unity handle same-script calculations that occur sumultaneously?

Unity Engine
1

Ex: An enemy is hit with two projectiles within the same frame, and both will have to calculate and apply damage.

Does it (kind of) multi-thread or queue the two calculations?
Does it ignore one of them?
I obviously want both calculations to occur, so do I have to write a bit of extra code that will allow for this at all?

Suggestions for how to do this (or work-arounds) would be helpful, thanks. [^_^]-b

2

OnCollisionEnter / OnTriggerEnter would be called twice. No special actions would be required by you.

3

There’s not really any such thing as “occur simultaneously”; they are run sequentially. Unity uses a single thread for scripts.

–Eric

4

Thanks for answering, both of you.

So the script would simply be ‘played’ twice, but in what way? Would one script finish doing its business before the other one starts?

5

Have a look at Unity - Manual: Order of execution for event functions. It show exactly what happens when.

6

I was looking for something like that! Thanks! :slight_smile: