# dynmapconkitty.py
# "This script creates a dynmap like rendered top view from
# flat dynmap data. It ignores all files starting with z (zoomed files)
# and saves the final result as "full.jpg". The script works with relative
# paths, so minor adjustments may be required, depending on your needs.
# Feel free to do whatever you want with it." - Teddy
#
# P.S. and TL;DR
# Run this script from your flat/ directory
# Written for Python 3.7.1

import os, operator
from PIL import Image, ImageOps

# List of tuples of image data, like (path, x, y)
images = []

# Preprocess image data
for dir in os.listdir("."):
    # Skip files
    if not os.path.isdir(dir):
        continue
    # Get image data by its name
    for image_name in os.listdir(dir):
        # Skip zoomed tiles
        if image_name.startswith("z"):
            continue
        # Get X and Y from basename
        basename = os.path.splitext(image_name)[0]
        x, y = tuple(int(i) for i in basename.split("_"))
        path = os.path.join(dir, image_name)
        images.append((path, x, y))

# Sort by X, ascending. Get min and max values
images.sort(key=operator.itemgetter(1))
min_x, max_x = images[0][1], images[-1][1]
diff_x = max_x - min_x
offset_x = abs(min_x) * 128

# Sort by Y, ascending. Get min and max values
images.sort(key=operator.itemgetter(2))
min_y, max_y = images[0][2], images[-1][2]
diff_y = max_y - min_y
offset_y = abs(min_y) * 128

# Create, concat and save image
output_image = Image.new("RGB", (diff_x * 128, diff_y * 128))
for (path, x, y) in images:
    image = ImageOps.flip(Image.open(path))
    output_image.paste(image, (offset_x + x*128, offset_y + y*128))
output_image.save("full.jpg")