riscos2tiled

#!/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 = ["tmxlib"]
# ///

import argparse
import math

import tmxlib as tmx


# Command-line arguments
parser = argparse.ArgumentParser(
    description="Convert plain text WinColl levels to Tiled .tmx format.",
)
parser.add_argument("-V", "--version", action="version",
                    version="%(prog)s 0.2 (07 Dec 2024) by Reuben Thomas <rrt@sc3d.org>")
parser.add_argument("wincoll_file", metavar="WINCOLL-LEVEL", help="plain text WinColl level file")
parser.add_argument("tiled_file", metavar="TILED-MAP", help="Tiled map output file")
args = parser.parse_args()

# Read the input and convert tile encoding
def convert(row: list[str]) -> list[int]:
    char_to_num = {
        " ": 10,
        "#": 11,
        "$": 12,
        "*": 13,
        "+": 14,
        ".": 15,
        "@": 16,
        "K": 17,
        "W": 18,
    }
    return list(map(lambda c: char_to_num[c], row))

wincoll_data = []
with open(args.wincoll_file, encoding="utf-8") as fh:
    for line in fh.readlines():
        wincoll_data += convert(list(line.strip("\n")))


# Construct the output map and save it
tilesize = 16
mapsize = int(math.sqrt(len(wincoll_data)))
tilemap = tmx.Map((mapsize, mapsize), (tilesize, tilesize))
tilemap.tilesets = [
    tmx.ImageTileset("WinColl", (tilesize, tilesize), 1, source="WinColl.tsx")]
tilemap.layers = [
    tmx.layer.TileLayer(tilemap, "Tile Layer 1", data=wincoll_data),
    ]
tilemap.save(args.tiled_file)