How can I differentiate collision between 2 same objects?

Hello!

I have one hitbox object that has the variable "player", which is either 1 or 2, based on the player.

When I now have an event like:

On "hitbox" collision with "hitbox", how can I tell construct 2 which hitbox is the first and which one the second?

I thought about having an event before like:

If hitbox.player == 1 -> collision event.

But then, how can I tell construct 2 which hitbox is meant in following events?

Thanks in advance!

If you only have two instances of hitbox, then any collision will always involve player 1 and player 2. So inside this event you can simply pick hitbox by comparing player=1 or player=2 and do what you need to do with them.

Another option is to add hitbox into a family. Then you can use "Hitbox on collision with HitboxFamily", inside this event hitbox object will be your player #1 and HitboxFamily will be player #2. (assuming you created them in this order)