Single Event Upon an Object Collision?

davesfarm

Hi, I have two objects, a ground and a ball.

I want when the ball hits the ground to spawn some particles, and shake the camera.

I havent even looked into shaking the camera yet heh, but I cant get the particles to only spawn when the initial collision of the two objects happens.

the particles keep spitting out because the objects, i guess after the ball has landed, continue to collide...

I set up a rule that said, when the objects collide to spawn the particles... is this not the right way?

is there a rule that changes something like this to only happen once, or during the initial collision that I am not aware of?

I have a feeling this is something I am totally just noticing because it seems like one would want this behavior quite often...

thanks!

tenrdrmer

you should setup an attribute probably a boolean self attribute firstimpact

then
When overlap or collide
and when self.firstimpact is false
--Do particals
--Change attribute self.firstimpact to true

davesfarm

Hey I'm sorry, but I'm pretty green with GS and I actualy had a question about doing exactly what you suggest before!

So hopefully you can enlighten me on how do I?:

--Change attribute self.firstimpact to true

Thanks for the additional help!

tenrdrmer

Change attribute is a behavior in the list of behaviors. you just drag it over and the expression editor to select your attributes.

I would recommend watch through tutorials as well as reading through the wiki. there is tons of info and have learned a lot watch tshirtbooths videos

http://gamesalad.com/forums/topic.php?id=11552

http://gamesalad.com/wiki/

davesfarm

Thanks!