halflife25-sdk/devtools/image_to_background.py
2024-08-20 19:58:27 -07:00

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2.6 KiB
Python

from PIL import Image
import sys
import os
def convert_to_tiles(input_file, output_folder, tile_size=(256, 256)):
# Open the image
img = Image.open(input_file)
width, height = img.size
# Create the output folder if it doesn't exist
if not os.path.exists(output_folder):
os.makedirs(output_folder)
output_img_folder = os.path.join(output_folder, "background")
if not os.path.exists(output_img_folder):
os.makedirs(output_img_folder)
row = 0
col = 0
prefix = "21_9"
# background txt file should look like:
#
# resolution 800 600
#
# resource/background/800_1_a_loading.tga fit 0 0
# resource/background/800_1_b_loading.tga fit 256 0
# etc
layout_file = f"resolution\t{width}\t{height}\n\n"
# Loop through the image and extract tiles
for j in range(0, height, tile_size[1]):
row = row + 1
col = 0
for i in range(0, width, tile_size[0]):
# Calculate the boundaries for the tile, making sure it doesn't exceed the image dimensions
right_bound = min(i + tile_size[0], width)
bottom_bound = min(j + tile_size[1], height)
box = (i, j, right_bound, bottom_bound)
tile = img.crop(box)
tile_char = chr(ord('a')+col)
target_file = f"{prefix}_{row}_{tile_char}_loading.tga"
tile_filename = os.path.join(output_img_folder, target_file)
tile.save(tile_filename)
print(f"Saved {tile_filename}")
line = f"resource/background/{target_file}\tfit\t{i}\t{j}\n"
layout_file += line
col = col + 1
print("------------------------------------------")
print(layout_file)
print("------------------------------------------")
out_txt = os.path.join(output_folder, "BackgroundLayout.txt")
with open(out_txt, 'w') as f:
f.write(layout_file)
out_txt = os.path.join(output_folder, "BackgroundLoadingLayout.txt")
with open(out_txt, 'w') as f:
f.write(layout_file)
if __name__ == "__main__":
if len(sys.argv) != 2:
print("Usage: python image_to_background.py path_to_image (psd/png/tga)")
sys.exit(1)
img_path = sys.argv[1]
img_dir = os.path.dirname(img_path)
img_dir = os.path.join(img_dir, "Background")
print(f"out dir: {img_dir}")
convert_to_tiles(img_path, img_dir)
#width, height, palette, data = read_spr(spr_path)
#save_as_png(spr_path + "__.png", width, height, palette, data)
print(f"Converted {img_path}")