borbular/format.py at main · okforth/borbular · GitHub

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from PIL import Image
from pathlib import Path

INPUT_DIR = Path("tiles")
OUTPUT_DIR = Path("raw")
# SPRITE_SIZE = (16, 16)

OUTPUT_DIR.mkdir(exist_ok=True)

VGA_PALETTE = [ 0, 0, 0, 0, 0, 170, 0, 170, 0, 0, 170, 170, 170, 0, 0, 170, 0, 170, 170, 85, 0, 170, 170, 170, 85, 85, 85, 85, 85, 255, 85, 255, 85, 85, 255, 255, 255, 85, 85, 255, 85, 255, 255, 255, 85, 255, 255, 255, 0, 0, 0, 16, 16, 16, 32, 32, 32, 53, 53, 53, 69, 69, 69, 85, 85, 85, 101, 101, 101, 117, 117, 117, 138, 138, 138, 154, 154, 154, 170, 170, 170, 186, 186, 186, 202, 202, 202, 223, 223, 223, 239, 239, 239, 255, 255, 255, 0, 0, 255, 65, 0, 255, 130, 0, 255, 190, 0, 255, 255, 0, 255, 255, 0, 190, 255, 0, 130, 255, 0, 65, 255, 0, 0, 255, 65, 0, 255, 130, 0, 255, 190, 0, 255, 255, 0, 190, 255, 0, 130, 255, 0, 65, 255, 0, 0, 255, 0, 0, 255, 65, 0, 255, 130, 0, 255, 190, 0, 255, 255, 0, 190, 255, 0, 130, 255, 0, 65, 255, 130, 130, 255, 158, 130, 255, 190, 130, 255, 223, 130, 255, 255, 130, 255, 255, 130, 223, 255, 130, 190, 255, 130, 158, 255, 130, 130, 255, 158, 130, 255, 190, 130, 255, 223, 130, 255, 255, 130, 223, 255, 130, 190, 255, 130, 158, 255, 130, 130, 255, 130, 130, 255, 158, 130, 255, 190, 130, 255, 223, 130, 255, 255, 130, 223, 255, 130, 190, 255, 130, 158, 255, 186, 186, 255, 202, 186, 255, 223, 186, 255, 239, 186, 255, 255, 186, 255, 255, 186, 239, 255, 186, 223, 255, 186, 202, 255, 186, 186, 255, 202, 186, 255, 223, 186, 255, 239, 186, 255, 255, 186, 239, 255, 186, 223, 255, 186, 202, 255, 186, 186, 255, 186, 186, 255, 202, 186, 255, 223, 186, 255, 239, 186, 255, 255, 186, 239, 255, 186, 223, 255, 186, 202, 255, 0, 0, 113, 28, 0, 113, 57, 0, 113, 85, 0, 113, 113, 0, 113, 113, 0, 85, 113, 0, 57, 113, 0, 28, 113, 0, 0, 113, 28, 0, 113, 57, 0, 113, 85, 0, 113, 113, 0, 85, 113, 0, 57, 113, 0, 28, 113, 0, 0, 113, 0, 0, 113, 28, 0, 113, 57, 0, 113, 85, 0, 113, 113, 0, 85, 113, 0, 57, 113, 0, 28, 113, 57, 57, 113, 69, 57, 113, 85, 57, 113, 97, 57, 113, 113, 57, 113, 113, 57, 97, 113, 57, 85, 113, 57, 69, 113, 57, 57, 113, 69, 57, 113, 85, 57, 113, 97, 57, 113, 113, 57, 97, 113, 57, 85, 113, 57, 69, 113, 57, 57, 113, 57, 57, 113, 69, 57, 113, 85, 57, 113, 97, 57, 113, 113, 57, 97, 113, 57, 85, 113, 57, 69, 113, 81, 81, 113, 89, 81, 113, 97, 81, 113, 105, 81, 113, 113, 81, 113, 113, 81, 105, 113, 81, 97, 113, 81, 89, 113, 81, 81, 113, 89, 81, 113, 97, 81, 113, 105, 81, 113, 113, 81, 105, 113, 81, 97, 113, 81, 89, 113, 81, 81, 113, 81, 81, 113, 89, 81, 113, 97, 81, 113, 105, 81, 113, 113, 81, 105, 113, 81, 97, 113, 81, 89, 113, 0, 0, 65, 16, 0, 65, 32, 0, 65, 49, 0, 65, 65, 0, 65, 65, 0, 49, 65, 0, 32, 65, 0, 16, 65, 0, 0, 65, 16, 0, 65, 32, 0, 65, 49, 0, 65, 65, 0, 49, 65, 0, 32, 65, 0, 16, 65, 0, 0, 65, 0, 0, 65, 16, 0, 65, 32, 0, 65, 49, 0, 65, 65, 0, 49, 65, 0, 32, 65, 0, 16, 65, 32, 32, 65, 40, 32, 65, 49, 32, 65, 57, 32, 65, 65, 32, 65, 65, 32, 57, 65, 32, 49, 65, 32, 40, 65, 32, 32, 65, 40, 32, 65, 49, 32, 65, 57, 32, 65, 65, 32, 57, 65, 32, 49, 65, 32, 40, 65, 32, 32, 65, 32, 32, 65, 40, 32, 65, 49, 32, 65, 57, 32, 65, 65, 32, 57, 65, 32, 49, 65, 32, 40, 65, 45, 45, 65, 49, 45, 65, 53, 45, 65, 61, 45, 65, 65, 45, 65, 65, 45, 61, 65, 45, 53, 65, 45, 49, 65, 45, 45, 65, 49, 45, 65, 53, 45, 65, 61, 45, 65, 65, 45, 61, 65, 45, 53, 65, 45, 49, 65, 45, 45, 65, 45, 45, 65, 49, 45, 65, 53, 45, 65, 61, 45, 65, 65, 45, 61, 65, 45, 53, 65, 45, 49, 65, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 ]

while len(VGA_PALETTE) < 256 * 3:
	VGA_PALETTE += [0, 0, 0]

# create paletted image with VGA palette
pal_img = Image.new("P", (1, 1))
pal_img.putpalette(VGA_PALETTE)

for png_path in INPUT_DIR.glob("*.png"):
	print(f"Processing {png_path.name}...")

	img = Image.open(png_path).convert("RGB")
#	if img.size != SPRITE_SIZE:
#		raise ValueError(
#			f"{png_path.name} must be {SPRITE_SIZE[0]}x{SPRITE_SIZE[1]} pixels"
#		)

	# quantize to VGA palette
	img = img.quantize(palette=pal_img, dither=Image.NONE)

	# extract palette indices
	pixels = img.tobytes()

	# output .raw file with same name
	raw_path = OUTPUT_DIR / (png_path.stem + ".raw")
	with open(raw_path, "wb") as f:
		f.write(pixels)

	print(f"Saved {raw_path}")

print ("All PNG files converted.")