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#!/usr/bin/env python3
import argparse
import cv2
import pathlib
import numpy
import os
from typing import MutableMapping
import yaml
MAP_ROOT = pathlib.Path(os.getcwd())
TILES_DIR = MAP_ROOT / '../assets/tiles'
SHOW_MAP = False
def get_tile_path(tile: str) -> pathlib.Path:
"""Return the corresponding image file name for a tile"""
return TILES_DIR / f'{tile.lower().replace(" ", "_")}.png'
def generate_img(map_path: pathlib.Path):
"""Generate a image from a map file"""
with open(map_path, 'r') as map_file:
map_definition = yaml.full_load(map_file)
# remove the trailing new line
map_string = map_definition['map'][:-1]
# ensure that all keys are actually strings
symbols = {str(k): v for k, v in map_definition['symbols'].items()}
# build up tiles
tiles = []
for line in map_string.splitlines():
row = []
for symbol in line:
tile = "neutral"
if symbol != ' ':
if symbol not in symbols:
print(f'WARNING unknown symbol "{symbol}"')
else:
tile = symbols[symbol]
row.append(tile)
tiles.append(row)
rows_imgs = []
for i, row in enumerate(tiles):
tile_imgs = []
for j, tile in enumerate(row):
# find the right street and rotation
if tile == 'street':
# check continuations
left = j > 1 and row[j - 1] == 'street'
right = j < len(row) - 1 and row[j + 1] == 'street'
above = i > 1 and tiles[i - 1][j] == 'street'
below = i < len(tiles) - 1 and tiles[i + 1][j] == 'street'
connections = len(
[b for b in [left, right, above, below] if b == True])
# straight lines
if connections == 1 or (connections == 2 and
((left and right) or
(above and below))):
tile_img = cv2.imread(str(get_tile_path('street')))
if above or below:
tile_img = numpy.rot90(tile_img)
# elbow
elif connections == 2:
# normal orientation above and right
tile_img = cv2.imread(str(get_tile_path('street_2')))
if right and below:
tile_img = numpy.rot90(tile_img, 3)
elif left and below:
tile_img = numpy.rot90(tile_img, 2)
elif above and left:
tile_img = numpy.rot90(tile_img)
elif connections == 3:
# normal orientation left above right
tile_img = cv2.imread(str(get_tile_path('street_3')))
if above and right and below:
tile_img = numpy.rot90(tile_img, 3)
elif left and below and right:
tile_img = numpy.rot90(tile_img, 2)
elif below and left and above:
tile_img = numpy.rot90(tile_img)
elif connections == 4:
tile_img = cv2.imread(str(get_tile_path('street_4')))
else:
tile_img = cv2.imread(str(get_tile_path(tile)))
tile_imgs.append(tile_img)
row_img = cv2.hconcat(tile_imgs)
rows_imgs.append(row_img)
map_img = cv2.vconcat(rows_imgs)
if SHOW_MAP:
cv2.imshow(f'{map_path.stem}.png', map_img)
cv2.waitKey(0)
cv2.imwrite(f'{map_path.stem}.png', map_img)
def main():
"""Generate map images from map files"""
parser = argparse.ArgumentParser(
description='generate latex standalone cards')
parser.add_argument('map_input',
help='map file or directory containing map files')
parser.add_argument('--map-root', help='path to the map root directory')
parser.add_argument('--show-map',
help='show the generated map',
action='store_true')
args = parser.parse_args()
if args.map_root:
global MAP_ROOT
MAP_ROOT = pathlib.Path(args.latex_root)
global TILES_DIR
TILES_DIR = MAP_ROOT / '../assets/tiles'
if args.show_map:
global SHOW_MAP
SHOW_MAP = True
map_path = pathlib.Path(args.map_input)
map_files = [map_path]
if map_path.is_dir():
map_files = map_path.glob('*.yml')
for m in map_files:
generate_img(m)
if __name__ == '__main__':
main()
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