How do I count bullet collisions?

So I've got some bullets. They bounce off of solids. I want them to disappear after three of those bounces. How do I do that?

I thought it would be as simple as adding 1 to an instance variable with each bounce, then destroying the bullet when that variable reaches 3, but the problem is that there doesn't seem to be any kind of 'on-collision' event. There's 'on-collision-with-a-specific-object', but not 'on-collision-with-any-solid' by the looks of things. Surely I don't need a separate event for every solid object in the game?

So, um, what do I do?

Create a Family with the objects you want it to collide against and then test vs that.

Thanks a ton! Shame families are only in the full version.

Just a thought , what if you compared the bullets angle and then added to a variable , according to the manual............AngleOfMotion

Get the angle the bullet is currently moving at (which can be different to the object's angle), in degrees. This changes when the bullet bounces , might be worth a try ?