tiled2riscos

#!/usr/bin/env python3
#
# © Reuben Thomas <rrt@sc3d.org> 2024
# Released under the GPL version 3, or (at your option) any later version.

# /// script
# requires-python = ">=3.9"
# dependencies = ["pytmx"]
# ///

import argparse

import pytmx


# Command-line arguments
parser = argparse.ArgumentParser(
    description="Convert Tiled WinColl levels to RISC OS plain text format.",
)
parser.add_argument(
    "-V",
    "--version",
    action="version",
    version="%(prog)s 0.34 (27 Dec 2024) by Reuben Thomas <rrt@sc3d.org>",
)
parser.add_argument("tiled_file", metavar="TILED-MAP", help="Tiled map output file")
parser.add_argument(
    "wincoll_file", metavar="WINCOLL-LEVEL", help="plain text WinColl level file"
)
args = parser.parse_args()


# Read the input and convert tile GIDs to text
tiled_map = pytmx.TiledMap(args.tiled_file)

gid_to_char = {
    "wincoll/levels/Gap.png": " ",
    "wincoll/levels/Brick.png": "#",
    "wincoll/levels/Safe.png": "$",
    "wincoll/levels/Diamond.png": "*",
    "wincoll/levels/Blob.png": "+",
    "wincoll/levels/Earth.png": ".",
    "wincoll/levels/Rock.png": "@",
    "wincoll/levels/Key.png": "K",
    "wincoll/levels/Hero.png": "W",
}
lines = []
text = ""
for tile in tiled_map.layers[0].tiles():
    text += gid_to_char[tile[2][0]]

# Convert tile string to lines and save it
output = (
    "\n".join(
        [text[i : i + tiled_map.width] for i in range(0, len(text), tiled_map.width)],
    )
    + "\n"
)
with open(args.wincoll_file, "w", encoding="utf-8") as fh:
    fh.write(output)