Include font assets in hagadias

Assets can be accessed by hagadias users by using importlib.resources.

- Move assets into subfolder
- Use pathlib instead of os.path for access
- Update license information

README.md

@@ -120,6 +120,14 @@ print(gamecodes["class_tiles"]["Horticulturist"])
 ('creatures/caste_1.bmp', 'g')
 ```
 
+## License
+
+hagadias is licensed under the terms of the GNU Affero General Public License Version 3.
+
+The included font Source Code Pro is used under the terms of the SIL Open Font License 1.1.
+
+The included file `IBMGRAPH.TXT` is provided by the Unicode Consortium under the terms of the license contained therein.
+
 ## Contributing
 
 See `CONTRIBUTING.md`.

hagadias/helpers.py

@@ -1,10 +1,10 @@
 """Helper functions for hagadias."""
 
 import itertools
-import os
 import random
 import re
 from math import gcd
+from pathlib import Path
 from typing import Iterator, List, Tuple, Optional
 
 import pefile
@@ -17,9 +17,9 @@
 PALETTE.remove("O")  # extradimensional color
 
 # load and store the Code Page 437 to Unicode translation
-CP437_MAP_FILE = os.path.join(os.path.dirname(__file__), "IBMGRAPH.TXT")
+ASSETS = Path(__file__).parent / "assets"
 cp437_conv = {}
-with open(CP437_MAP_FILE) as f:
+with open(ASSETS / "IBMGRAPH.TXT") as f:
     for line in f.readlines():
         if not line.startswith("#"):
             unicode, cp437, *_ = line.split()

hagadias/qudtile.py

@@ -282,7 +282,9 @@ class StandInTiles:
     transparent pixels, suitable to be colored by QudTile, or can return a pre-colored image.
     """
 
-    FONT_SOURCECODEPRO = ImageFont.truetype("helpers/SourceCodePro-Semibold.ttf", 260)
+    ASSETS = Path(__file__).parent / "assets"
+    SOURCECODEPRO_FILE = ASSETS / "SourceCodePro-Semibold.ttf"
+    FONT_SOURCECODEPRO = ImageFont.truetype(str(SOURCECODEPRO_FILE), 260)
 
     _hologram_material_glyph1: Image = None
     _hologram_material_glyph2: Image = None