mirror of
https://github.com/a2-4am/4cade.git
synced 2024-11-29 22:49:26 +00:00
46 lines
1.5 KiB
Python
46 lines
1.5 KiB
Python
|
#!/usr/bin/env python3
|
||
|
|
|
||
|
|
import PIL.Image # https://pillow.readthedocs.io/
|
||
|
|
import util
|
||
|
|
|
||
|
|
# snowflake.png is the source image. The source image MUST have a white background,
|
||
|
|
# but other colors and pixel depth are irrelevant. This one is black & white.
|
||
|
|
# Due to the Apple II pixel aspect ratio, we do a 1-time aspect-ratio-losing resize
|
||
|
|
# to squash the image to 92% height.
|
||
|
|
#
|
||
|
|
# $ gm convert snowflake.png -resize "100%x92%!" squash.png
|
||
|
|
# (Depending on your shell, you may need to escape the exclamation point. Grr.)
|
||
|
|
#
|
||
|
|
# Now we can create individual images for each "frame" of the animation, by
|
||
|
|
# resizing the (squashed) source image and putting it in a 280x192 frame.
|
||
|
|
#
|
||
|
|
# $ for w in `seq 1 500`; do \
|
||
|
|
# gm convert -size 160x100 squash.png \
|
||
|
|
# -resize "$w" \
|
||
|
|
# -background white \
|
||
|
|
# -compose Copy \
|
||
|
|
# -gravity center \
|
||
|
|
# -extent 160x100 thumb"$w".png; \
|
||
|
|
# done
|
||
|
|
#
|
||
|
|
# Depending on the source image, you may need more or fewer than 500 frames. This
|
||
|
|
# number is duplicated below in the |frames| variable. Sorry.
|
||
|
|
#
|
||
|
|
|
||
|
|
frames = 500 # number of "thumbN.png" files
|
||
|
|
|
||
|
|
coords = []
|
||
|
|
for i in range(1,frames):
|
||
|
|
p = PIL.Image.open("snowflake/thumb%s.png" % i)
|
||
|
|
for x in range(0, 160//2):
|
||
|
|
for y in range(0, 100//2):
|
||
|
|
if p.getpixel((x,99-y))[0] != 255:
|
||
|
|
coords.append((y*2,x))
|
||
|
|
|
||
|
|
unique_coords = util.unique(coords)
|
||
|
|
|
||
|
|
util.write("../../../src/fx/fx.shr.snowflake.data.a", unique_coords, header="""!cpu 6502
|
||
|
|
!to "build/FX/SHR.FLAKE.DATA",plain
|
||
|
|
*=$9F00
|
||
|
|
""")
|