def getHitmask(image):
    """returns a hitmask using an image's alpha."""
    mask = []
    for x in range(image.get_width()):
        mask.append([])
        for y in range(image.get_height()):
            mask[x].append(bool(image.get_at((x,y))[3]))
    return mask
returns a hitmask using an image's alpha.
game/flappy_bird_utils.py