Irregular Shape - Touch Ignore Transparency

lukejnr

Hi,

So I am making a touch based puzzle with draggable pieces. As the shapes are irregular in shape, they are transparent PNG files. I have developed it so I can drag the pieces around with my finger.

I want GS to ignore any touches in the transparent part of the image. So if I have a triangle, I only want to be able to drag the piece if I touch the actually triangle, not the square container of the Actor.

Thanks, Luke

lukejnr

Oh. I was hoping there would be an option, ignore transparent part of the image.

JDuaneJ

this is actually really lame that GS doesn't support ignoring transparent pixels. Looking forward to the future when these wasted pixels are ignored.

dmilinovichiii

What you are wanting is called polygonal collision or pixel collision. GameSalad is planing on adding this to its engine after the Lau-Free update.