Source data is now in toml format

The input text is now expected to be a toml file with a leading comment
section defining the battle map, according to the following rules:

1. Blank lines are ignored
2. Lines at the top of the file beginning with '#', optionally with
   leading spaces, is treated as map data
3. Map data continues until the first line not starting with a #.
4. Any subsequent lines are treated as metadata in toml format.
5. The metadata must contain the [map] section.
6. The [map] section must contain the "name" attribute.

The metadata is available as BattleMap.metadata; the map source is
available as BattleMap.map_string.

New convenience properties ahve been added to the BattleMap class for
accessing portions of the text-only output. This includes the header and
footer attributes.

src/examples/five_room_dungeon.toml

@@ -0,0 +1,41 @@
+# ..... 1
+# .....     ..... 2
+# ..........D....
+# .....     ..D..
+#             .
+#             .
+#        S.........
+#        .        .
+#        .        .
+#     ..... 3    .L.... 4
+#     .....      ......
+#     .....      ......
+#                ....v.
+# 
+#      .^.........
+#      ...,,,,,...
+#      ...,___,...
+#      ...,,,,,...
+#      ........... 5
+# 
+
+[map]
+name = "Five Room Dungeon"
+description = "An example dungeon"
+author = "evilchili <hello@evilchi.li>"
+license = "CC0"
+
+[1]
+description = "First Room"
+
+[2]
+description = "Second Room"
+
+[3]
+description = "Third Room"
+
+[4]
+description = "Forth Room"
+
+[5]
+description = "Fifth Room"

src/examples/five_room_dungeon.txt

@@ -1,20 +0,0 @@
-..... 1
-.....     ..... 2
-..........D....
-.....     ..D..
-            .
-            .
-       S.........
-       .        .
-       .        .
-    ..... 3    .L.... 4
-    .....      ......
-    .....      ......
-               ....v.
-
-     .^.........
-     ...,,,,,...
-     ...,___,...
-     ...,,,,,...
-     ........... 5
-

src/tilemapper/battlemap.py

@@ -5,6 +5,9 @@ from io import StringIO
 from pathlib import Path
 from textwrap import indent
 from typing import List, Union, get_type_hints
+from types import SimpleNamespace
+
+import tomllib
 
 from PIL import Image
 
@@ -28,14 +31,14 @@ class BattleMap(BattleMapType):
     Example Usage:
 
         >>> console = TileSetManager().load("colorized")
-        >>> bmap = BattleMap(name="Example Map", source="input.txt", tileset=console)
+        >>> bmap = BattleMap("input.txt", tileset=console)
         >>> print(bmap.as_string())
 
     """
 
-    name: str = ""
     source: Union[StringIO, Path] = None
-    source_data: str = ""
+    map_string: str = ""
+    metadata: SimpleNamespace = None
     tileset: TileSet = None
     width: int = 0
     height: int = 0
@@ -51,16 +54,37 @@ class BattleMap(BattleMapType):
         except AttributeError:
             data = self.source.read()
         data = data.strip("\n")
-        if not self.validate_source_data(data):
-            return
-        self.source_data = data
+
+        map_data = ""
+        metadata = ""
+        in_map = True
+        for line in data.splitlines():
+            line = line.lstrip(" ")
+            if in_map:
+                if line and line[0] == "#":
+                    map_data += line[1:] + "\n"
+                    continue
+                in_map = False
+            metadata += line + "\n"
+
+        self.validate_map_string(map_data)
+        self.map_string = map_data
+        self.metadata = SimpleNamespace(**tomllib.loads(metadata))
 
         # invalidate the cache
         if hasattr(self, "grid"):
             del self.grid
+        if hasattr(self, "header"):
+            del self.header
+        if hasattr(self, "footer"):
+            del self.footer
+        if hasattr(self, "legend"):
+            del self.legend
+        if hasattr(self, "coordinates"):
+            del self.coordinates
         return self.grid
 
-    def validate_source_data(self, data: str) -> bool:
+    def validate_map_string(self, data: str) -> bool:
         """
         Return True if every terrain type in the input data has a corresponding tile in the current tile set.
         """
@@ -81,7 +105,7 @@ class BattleMap(BattleMapType):
         Returns an Image instance.
         """
         if get_type_hints(self.tileset.render_grid)["return"] != Image:
-            raise NotImplementedError(f"Tile set does not support image rendering.")
+            raise NotImplementedError("Tile set does not support image rendering.")
         return self.tileset.render_grid(grid=self.grid, width=self.width, height=self.height)
 
     def as_string(self) -> str:
@@ -95,38 +119,87 @@ class BattleMap(BattleMapType):
         Return the current map's Grid instance.
         """
         matrix = []
-        for line in self.source_data.splitlines():
+        for line in self.map_string.splitlines():
             matrix.append([self.tileset.get(char) for char in line])
         self.width = max([len(line) for line in matrix])
         self.height = len(matrix)
         return Grid(data=matrix)
 
-    @property
-    def title(self) -> str:
-        return f"BattleMap: {self.name} ({self.width} x {self.height}, {self.width * self.height * 5}sq.ft.)"
+    @cached_property
+    def header(self) -> str:
+        lines = [f"BattleMap: {self.metadata.map['name']} ({self.width}x{self.height})"]
+        lines.append(('-' * len(lines[0])))
+        for key, value in self.metadata.map.items():
+            if key in ("name", "description"):
+                continue
+            lines.append(f"{key.title()}: {value}")
+        return "\n".join(lines)
 
-    @property
+    @cached_property
+    def footer(self) -> str:
+        lines = []
+        if 'description' in self.metadata.map:
+            lines.append(f"{self.metadata.map['description']}")
+            lines.append("")
+        lines.append("Legend:")
+        lines.append(self.legend)
+        return "\n".join(lines)
+
+    @cached_property
     def legend(self) -> str:
         output = ""
-        locations = 0
-        for char in sorted(set(list(self.source_data)), key=str.lower):
+        locations = False
+        for char in sorted(set(list(self.map_string)), key=str.lower):
             if char in self.tileset.config.legend:
-                if char in '0123456789':
-                    locations = max(locations, int(char))
+                if char in "0123456789":
+                    locations = True
+                    continue
                 output += f"{char} - {self.tileset.config.legend[char]}\n"
         if locations:
-            location_key = "1" if locations == 1 else f"1-{locations}"
-            output += f"{location_key} - location"
-            width = len(location_key)
+            output += "0-9 - locations"
             justified = ""
             for line in output.splitlines():
                 (key, sep, desc) = line.partition(" - ")
-                justified += f"{key.rjust(width, ' ')}{sep}{desc}\n"
+                justified += f"{key.rjust(3, ' ')}{sep}{desc}\n"
             output = "".join(justified)
         return output
 
+    @cached_property
+    def top_coordinates(self) -> str:
+        row = next(row for row in self.grid.data if len(row) == self.width)
+        max_len = max([len(cell.x_coordinate) for cell in row])
+        lines = list(("" for i in range(max_len)))
+        for pos in row:
+            for i in range(len(pos.x_coordinate)):
+                lines[max_len - i - 1] += pos.x_coordinate[i]
+        return "\n".join((line.rjust(len(row), " ") for line in lines))
+
+    @cached_property
+    def left_coordinates(self) -> List[str]:
+        return [row[0].y_coordinate if row else "" for row in self.grid.data]
+
     def __str__(self) -> str:
         return self.as_string()
 
     def __repr__(self) -> str:
-        return f"\n{self.title}\n\n{indent(str(self), '    ')}\n\nLegend:\n{indent(self.legend, '  ')}"
+        lines = ""
+        left_coords = self.left_coordinates
+        i = 0
+        for line in str(self).splitlines():
+            lines += f"{left_coords[i].rjust(2, ' ')} │ {line}".ljust(self.width, " ") + " │\n"
+            i = i + 1
+        top_break = "┌" + ("─" * (self.width + 2)) + "┐"
+        bot_break = "└" + ("─" * (self.width + 2)) + "┘"
+        return "\n".join(
+            [
+                "",
+                self.header,
+                "",
+                indent(self.top_coordinates, " " * 5),
+                indent(top_break, " " * 3),
+                lines.rstrip(),
+                indent(bot_break, " " * 3),
+                "",
+                indent(self.footer, "   ")
+            ]
+        )

src/tilemapper/cli.py

@@ -71,14 +71,14 @@ def render(
 def render_map(
     source: typer.FileText = INSTALL_DIR / "examples" / "five_room_dungeon.txt",
     outfile: Union[Path, None] = None,
-    tileset: str = 'colorized'
+    tileset: str = "colorized",
 ):
     manager = app_state["tileset_manager"]
     if tileset not in manager.available:
         raise RuntimeError(f"Could not locate the tile set {tileset} in {manager.config_dir}.")
 
     try:
-        bmap = battlemap.BattleMap(name=source.name, source=source, tileset=manager.load(tileset))
+        bmap = battlemap.BattleMap(source=source, tileset=manager.load(tileset))
         bmap.load()
     except battlemap.UnsupportedTileException as e:
         logging.error(e)

src/tilemapper/converter.py

@@ -1,22 +1,18 @@
-from types import SimpleNamespace
-from collections import defaultdict
 import json
+from types import SimpleNamespace
 
 terrain_map = {
-    "0": " ",           # nothing
-    "16": " ",          # perimeter
+    "0": " ",  # nothing
+    "16": " ",  # perimeter
     "4": ".",
-
     "4194308": "v",  # stair_down
     "8388612": "^",  # stair_up
-
     "13107": "d",  # door
     "26214": "L",  # door, locked
     "52429": "T",  # door, trapped
     "10485": "S",  # door, secret
     "65540": "A",  # arch
     "20971": "H",  # portcullis
-
     "82208": "1",
     "83886": "2",
     "8556": "3",
@@ -27,7 +23,6 @@ terrain_map = {
     "93952": "8",
     "95630": "9",
     "80530": "0",
-
 }
 
 
@@ -39,12 +34,12 @@ def convert_donjon(source: str) -> str:
     src = SimpleNamespace(**json.loads(source))
 
     textmap = ""
-    for y in range(len(src.cells)):
+    for y in range(1, len(src.cells) - 1):
         row = src.cells[y]
-        for x in range(len(row)):
+        for x in range(1, len(row) - 1):
             char = get_char(str(row[x]), default=".")
             if not char:
                 raise Exception(f"{textmap}\nMissing value {row[x]} at ({y}, {x})")
             textmap += char
         textmap += "\n"
-    return textmap
+    return textmap.rstrip()

src/tilemapper/grid.py

@@ -1,9 +1,9 @@
-from collections import namedtuple
+import string
 from dataclasses import dataclass
 from typing import Any, Union
 
-# a position inside a grid.
-Position = namedtuple("Position", ["y", "x", "value"])
+Y_COORDS = string.digits
+X_COORDS = list(string.ascii_uppercase + string.ascii_lowercase)
 
 
 @dataclass
@@ -12,6 +12,20 @@ class Position:
     x: int
     value: Any
 
+    @property
+    def coordinates(self) -> str:
+        return (self.y_coordinate, self.x_coordinate)
+
+    @property
+    def y_coordinate(self) -> str:
+        max_coord = len(Y_COORDS)
+        return str((int(self.y / max_coord) * max_coord) + (self.y % max_coord))
+
+    @property
+    def x_coordinate(self) -> str:
+        max_coord = len(X_COORDS)
+        return (int(self.x / max_coord) * X_COORDS[0]) + X_COORDS[(self.x % max_coord)]
+
     def __str__(self):
         return f"posiiton-{self.y}-{self.x}-{self.value}"
 

src/tilemapper/tileset.py

@@ -96,6 +96,8 @@ class TileSet:
                     continue
                 if pos and pos.value:
                     output += pos.value.render()
+                else:
+                    output += self.empty_space.render()
             output += "\n"
         return output.rstrip("\n")
 

src/tilesets/ascii/tileset.toml

@@ -8,10 +8,13 @@ class = "tilemapper.tileset.TileSet"
 "." = "ground"
 "," = "grass"
 "_" = "water"
+"A" = "archway"
+"H" = "portcullis"
 "d" = "door, open"
 "D" = "door, closed"
 "L" = "door, locked"
 "S" = "door, secret"
+"T" = "door, trapped"
 "v" = "stairs, down"
 "^" = "stairs, up"
 "0" = "location 0"
@@ -25,3 +28,4 @@ class = "tilemapper.tileset.TileSet"
 "8" = "location 8"
 "9" = "location 9"
 
+

test/test_mapper.py

@@ -4,6 +4,7 @@ from textwrap import dedent
 import pytest
 
 from tilemapper import battlemap, tileset
+from tilemapper.grid import X_COORDS
 
 
 @pytest.fixture
@@ -15,18 +16,33 @@ def manager():
 def sample_map():
     return dedent(
         """
-        ........ 1
-        ........   ........ 2
-        ........   ........
-        .......L...D...  D
-        ........   .... ...
-        ........   ...d ...
-                      .
-            .........S. 3
-        5   .         .
-        ....S...   ...d.... 4
-        ........   ........
-        ........   ........
+        #    ........ 1
+        #    ........   ........ 2
+        #    ........   ........
+        #    .......L...D...  D
+        #    ........   .... ...
+        #    ........   ...d ...
+        #                  .
+        #        .........S. 3
+        #    5   .         .
+        #    ....S...   ...d.... 4
+        #    ........   ........
+        #    ........   ........
+
+        [map]
+        name = "sample map"
+        description = "sample dungeon"
+
+        [1]
+        name = "room 1"
+        [2]
+        name = "room 2"
+        [3]
+        name = "room 3"
+        [4]
+        name = "room 4"
+        [5]
+        name = "room 5"
 
     """
     )
@@ -38,9 +54,27 @@ def test_tileset_loader(manager):
 
 
 def test_renderer(manager, sample_map):
-    test_map = battlemap.BattleMap("test map", source=StringIO(sample_map), tileset=manager.load("ascii"))
+    test_map = battlemap.BattleMap(source=StringIO(sample_map), tileset=manager.load("ascii"))
     test_map.load()
     assert test_map.width == 21
     assert test_map.height == 12
-    assert test_map.source_data == sample_map.strip("\n")
-    assert str(test_map) == sample_map.strip("\n")
+
+    srclines = sample_map.splitlines()[1:]
+    strlines = str(test_map).splitlines()
+    for i in range(len(strlines)):
+        assert strlines[i] == srclines[i].lstrip(' #').ljust(21, " ")
+
+
+def test_grid_coordiates(manager):
+    coord_length = len(X_COORDS)
+    map_size = 2 * coord_length + 1
+    bigmap = StringIO((' # ' + ("." * map_size) + "\n") * map_size)
+    test_map = battlemap.BattleMap(source=bigmap, tileset=manager.load("ascii"))
+    test_map.load()
+    assert test_map.grid.data[-1][-1].coordinates == (f"{map_size - 1}", X_COORDS[0] * 3)
+
+    lines = test_map.top_coordinates.splitlines()
+    assert len(lines) == 3
+    assert lines[0] == (" " * (map_size - 1)) + X_COORDS[0]
+    assert lines[1][: (coord_length + 1)] == (" " * coord_length) + X_COORDS[0]
+    assert lines[2] == "".join(X_COORDS) + ((coord_length + 1) * X_COORDS[0])