Re: [pygame] using surfarrays without losing alpha?

[Jack Nutting <jn_list@rebisoft.com>]

On May 26, 2004, at 4:34 PM, Pete Shinners wrote:

> Yeah, this is a pain. There are separate surfarray functions to deal 
> with the alpha. Your softenRGBArray function looks like it would work 
> directly on a single alpha array without any changes.
Here's what seems to work right now:

def softenImage(img):
    rgbarray = pygame.surfarray.array3d(img)
    transformedArray = softenRgbArray(rgbarray)
    newImg = 
pygame.surfarray.make_surface(transformedArray).convert_alpha(img)
    newImgAlphaArray = pygame.surfarray.pixels_alpha(newImg)
    newImgAlphaArray[:,:] = pygame.surfarray.pixels_alpha(img)[:,:]
    return newImg

I do the softening just as before, make the surface the same way as 
before, but now I copy the alpha values from the old surface to the new 
one.  Seems like a roundabout way to do it, but I can't see any more 
straightforward way to do it at this point.

//jack