[SOLVED] Is it possible to make invisible (alpha) part of an image untouchable?

caseyryan

Hi! I was just wondering if it's possible to make an alpha part of the starling Image untouchable. Just like it was with InteractivePNG in native flash. The reason Why I want to do so is that I have buttons of different forms which often overlap each other, and when I wanna touch one button, I often touch another one instead. I know it's impossible to get pixels from a texture to check for alpha channel, but how do I solve this problem anyway?
Thanks 🙂

Jeff

http://wiki.starling-framework.org/extensions/pixel_perfect_touch

And other pixel-perfect hittest/touch threads here

caseyryan

But this class demands BitmapData. How can I get it from AssetManager? The only way around I see is to load bitmaps with my own loader, which is not good since I was planning to load everything using starling AssetManager

Jeff

Daniel has sample code on how to extend AssetManager if you needed additional access to BitmapData as it was being loaded:

http://forum.starling-framework.org/topic/textureatlas-holding-bitmap-information#post-73008

I think there are other threads that discuss this too.

caseyryan

Thanks Jeff! And thanks to Daniel of course. It's just what the doctor prescribed 😃 This extension resolves my problem