Pick all FamilyA that belong to FamilyB? *Solved*

C2 doesn't do sub-families (yet), so I'm using an approach where I assign the effective parent family to every effective child family.

If I'm working with an instance of the ChildFamily, how can I pick it as the ParentFamily? For example, I'd like to do the equivalent of this:

ChildFamily collides with Bouncer:
+ Pick ChildFamily as ParentFamily:
     -> Set ParentFamily.VelocityX to -50

ChildFamily collides with Bouncer:
+ For each ChildFamily
  + ParentFamily: Pick Instance with UID ChildFamily.UID
    -> Set ParentFamily.VelocityX to -50

You could also call a function with the ChildFamily.UID that collided, and in this function pick the parent by UID using the UID you put in param.

In this case, it's the same (as you would need a for each anyway to call the function on all children that collided) but in general it could be better, for example if you have multiple sources of velocity lost in your game. You would then just have to call the same function.

Ah, good idea. I will probably use a function in my case because I'm going to have a lot going on. Thanks!