Stuart Axon wrote:
Hello,
I'm wondering the best way to apply alpha from one surface onto another -
I can get the alpha with
pygame.surfarray.array_alpha
But can't see a corresponding way to apply that to a surface without
affecting the rgb values.
Basically I have two images, one paletted, I manipulate the palette
then blit it onto a 32 bit surface.
The second image has the alpha, I want to apply this to the surface,
keeping the rgb values - basically a very quick way of colourising
things.
Array slicing comes to the rescue.
pygame.surfarray.pixels_alpha(surf32)[...] = array_of_alpha
pixels_alpha() returns an array view of a surfaces alpha plane. The
square brackets indicate assignment to the contents of the array. The
ellipses represents the entire array.
--
Lenard Lindstrom
<[EMAIL PROTECTED]>