Help with Overlapping actors

glessner.games

Lets say I have two square actors of the exact same size and whatnot, each one doing different things.

-Actor 1, when touch is pressed, changes attribute to attribute +1

-Actor 2, when touch is pressed, changes attribute to attribute -1

Now lets say that when actor 1 is on top of actor 2, how do I make it so it doesn't do both changes, only actor 1. or vice versa

Armelline

Here's a very old demo file, I don't remember who first made it. @RThurman perhaps? It shows a good way of achieving the result you want.

Layers.gameproj.zip