def _generate_sprite(images, sprite_path):
sprite_width = max(i.width for i in images)
sprite_height = 0
# put all the max-width and stretch-x images together at the top
small_images = []
for image in images:
if image.width == sprite_width or image.stretch:
if image.stretch:
image.stretch_to_width(sprite_width)
image.sprite_location = (0, sprite_height)
sprite_height += image.height + SPRITE_PADDING
else:
small_images.append(image)
# lay out the remaining images -- done with a greedy algorithm
small_images.sort(key=lambda i: i.height, reverse=True)
bins = []
for image in small_images:
# find a bin to fit in
for bin in bins:
if bin.has_space_for(image):
break
else:
# or give up and create a new bin
bin = SpriteBin(
(0, sprite_height, sprite_width, sprite_height + image.height))
sprite_height += image.height + SPRITE_PADDING
bins.append(bin)
bin.add_image(image)
# generate the image
sprite_dimensions = (sprite_width, sprite_height)
background_color = (255, 69, 0, 0) # transparent orangered
sprite = Image.new('RGBA', sprite_dimensions, background_color)
for image in images:
sprite.paste(image.image, image.sprite_location)
sprite.save(sprite_path, optimize=True)
optimize_png(sprite_path)
# give back the mangled name
sprite_base, sprite_name = os.path.split(sprite_path)
return generate_static_name(sprite_name, base=sprite_base)
def _generate_sprite(images, sprite_path):
sprite_width = max(i.width for i in images)
sprite_height = 0
# put all the max-width and stretch-x images together at the top
small_images = []
for image in images:
if image.width == sprite_width or image.stretch:
if image.stretch:
image.stretch_to_width(sprite_width)
image.sprite_location = (0, sprite_height)
sprite_height += image.height + SPRITE_PADDING
else:
small_images.append(image)
# lay out the remaining images -- done with a greedy algorithm
small_images.sort(key=lambda i: i.height, reverse=True)
bins = []
for image in small_images:
# find a bin to fit in
for bin in bins:
if bin.has_space_for(image):
break
else:
# or give up and create a new bin
bin = SpriteBin((0, sprite_height, sprite_width, sprite_height + image.height))
sprite_height += image.height + SPRITE_PADDING
bins.append(bin)
bin.add_image(image)
# generate the image
sprite_dimensions = (sprite_width, sprite_height)
background_color = (255, 69, 0, 0) # transparent orangered
sprite = Image.new('RGBA', sprite_dimensions, background_color)
for image in images:
sprite.paste(image.image, image.sprite_location)
sprite.save(sprite_path, optimize=True)
optimize_png(sprite_path)
# give back the mangled name
sprite_base, sprite_name = os.path.split(sprite_path)
return generate_static_name(sprite_name, base=sprite_base)
