Comments on: Pixel-Perfect Collision Detection in ActionScript3

By: Wilson Silva

Wilson Silva — Wed, 04 Jan 2012 18:05:00 +0000

This article helped me finding the intersection point between two lines using getCollisionPoint()

Thanks a lot!

By: Heylon96

Heylon96 — Mon, 19 Dec 2011 14:10:00 +0000

Uses the bounding box. Not pixel perfect at all.

By: Royal Wedding live interactive map | www.davidkinross.co.uk

Royal Wedding live interactive map | www.davidkinross.co.uk — Sun, 18 Dec 2011 22:46:11 +0000

[...] scaled words sizes are based on the frequency of said words within the tweets. I used Troy Gilbert’s code for collision [...]

By: Michael_j_w

Michael_j_w — Wed, 05 Oct 2011 13:58:00 +0000

I’m having the same problem. Did you ever find an answer?

By: Poreddy Ramesh

Poreddy Ramesh — Fri, 16 Sep 2011 14:02:00 +0000

this code is not working with the objects with zero alpha. can nay body help in this case…..
thanq…

By: Anonymous

Anonymous — Mon, 05 Sep 2011 08:33:00 +0000

You shouldn’t have to import it if you have the class file in your Classes folder.

By: Anonymous

Anonymous — Mon, 05 Sep 2011 08:32:00 +0000

Looks like you need to put in

import flash.display.MovieClip;

in the class.

By: Danee987

Danee987 — Mon, 16 May 2011 22:41:00 +0000

this worked perfectly. u just saved me hourssss. thanks so much

By: Rogerup

Rogerup — Mon, 18 Apr 2011 03:45:00 +0000

“The drawback of this method is that if you use Bitmaps it sees just the bounding-box of the Bitmap, i.e. it ignores alpha. This is pretty frustrating when it comes to a sprite-based game.”

This is not true. You can use hitTest to make a perfect-collision-detection between 2 bitmaps with alpha. You just have to set the BitmapData with “true” in transparent parameter.

By: AlColella

AlColella — Wed, 02 Feb 2011 01:21:00 +0000

Great! Very usefull! Thanks!