Comments on: Managing multiple balls collisions with Flash: AS3 version

By: Han Erim

Han Erim — Wed, 08 Feb 2012 15:24:21 +0000

Wonderful tutorial lady.

Thanks

Han

By: Portfolio of Nikolaj Stausbøl – Designer and Artist Creative coding of logotype - Portfolio of Nikolaj Stausbøl

Mon, 06 Feb 2012 08:18:08 +0000

[...] looked realistic or worked flawlessly. From searching the web I found this guy Andrew Cook’s script which was just what I [...]

By: Camille

Camille — Mon, 09 Jan 2012 03:18:01 +0000

I’m not a flash developer but I can understand a few actionscript but can someone please elaborate this? How come when I change the stage size it no longer has the same effect? Balls appears disappears, flicker from here to there… Please help. Thank you!

By: anant

anant — Tue, 13 Dec 2011 13:15:16 +0000

what if the balls have different sizes will it work.
I mean will collisions be detected at edges or it will overlap till it detects hittest and then move apart

By: anant

anant — Tue, 13 Dec 2011 13:13:42 +0000

what if the balls have different size will it work

By: Christian

Christian — Tue, 06 Dec 2011 05:29:32 +0000

Whenever I use this, the balls stick together, until another ball knocks them apart

By: Andrea

Andrea — Wed, 19 Oct 2011 15:51:03 +0000

Sorry, how can the listener be removed?
Thank you!
Bye

By: Kreis-Kreis Collision Detecion mit Prediciton - Flashforum

Kreis-Kreis Collision Detecion mit Prediciton - Flashforum — Thu, 20 May 2010 15:43:58 +0000

[...] Ahnung ob das einfacher ist (hatte das von hgseib nicht angeschaut)… Managing multiple balls collisions with Flash: AS3 version – Emanuele Feronato Managing ball vs ball collision with Flash – Emanuele Feronato __________________ . [...]

By: carograph

carograph — Mon, 15 Feb 2010 15:07:11 +0000

beautiful solution. i had been tampering with this for a while, as i am learning to switch from AS2 to AS3. Thanks for the inspiration.

Now for a question:
would it be possible to load this swf into another fla, and using a movie clip as holder, that would increase and decrease in size, thus letting the balls react to the surrounding space it is being loaded into? volume vs. pressure sort of thing? i hope i am explaining myself clearly. any suggestions would be very helpful. I am a gamer newby, so help very much appreciated.

Cheerio
carograph

By: Pete

Pete — Tue, 12 Jan 2010 16:09:36 +0000

very elegant solution – I was working on the same thing, but mine seemed more complicated since I was rotating the velocity vectors to calculate the normals.
One issue with this: you determine if the balls are closer than the radius and move them back to the point at which they are just touching…you should figure how far back you moved, and then move a corresponding amount AFTER the collision. right now if they are very fast and the overlap is quite large, the bounce off effect is slightly distorted since they are simply moving back to the point of collision at the start of the next frame. minor point depending upon the frame rate of the movie and the radius of the balls, but something to consider…