Peter, If the polygons are Surfaces or can be turned into Surfaces, they can be turned into Masks to do pixel collision. Though, I may be misunderstanding what you are trying to do.
Nirav On Tue, Oct 7, 2008 at 11:21 AM, Peter Gebauer <[EMAIL PROTECTED]> wrote: > Hey Nirav! > > Yep, but as I said, I need to find colliding polygons, not pixels. > > /Peter > > On 2008-10-06 (Mon) 12:05, Nirav Patel wrote: >> Peter, >> >> There are some new functions in SVN in the mask module. New ones >> since 1.8.1 that could be useful for collision are: >> >> Mask.overlap_mask - Returns a mask of the overlapping pixels >> Mask.draw - Draws a mask onto another >> Mask.erase - Erases a mask from another >> Mask.count - Returns the number of set pixels >> Mask.centroid - Returns the centroid of the pixels in a Mask >> Mask.angle - Returns the orientation of the pixels >> Mask.connected_component - Returns a mask of a connected region of pixels. >> >> The mask module does pixel collisions pretty quickly. I think on >> modern systems it shouldn't be a significant difference (compared to >> say, blitting) between using pixel perfect detection and something >> like the seperating axis theorem. >> >> Nirav >> >> On Mon, Oct 6, 2008 at 11:27 AM, Peter Gebauer >> <[EMAIL PROTECTED]> wrote: >> > Hey guys! >> > >> > I've been looking around for various libraries that handle >> > intersection/colliding polygons/line segments, I'm just wondering if/when >> > there will be polygon shapes and additional collision testing functions >> > that can be used seemlessly with the old rect and mask libraries that >> > already exist in PyGame? >> > >> > /Peter >> > >> >