Simplify CLI

samples/dungeon_test.txt

@@ -1,19 +0,0 @@
-             
-         ....
-         .__.
-         ....
-          .  
- .....  .....
- .,,,........
- .,_,.  .....
- .,,,.  .....
- .....  ..... ... 
-          .   ... 
-    ............. 
-    .     .   ... 
-    .  .....
-    _  .___.
-       .___.
-       .___.
-       .....
-         

samples/edge_test.txt

@@ -1,10 +0,0 @@
-  ,,,,,,,,
- m,__,,,_,
- m____,,,,
- m.__,,,,,
-mm...,,,,
-m,___.,,,,
- m,,,,,,,
-
-
-

samples/edge_test_small.txt

@@ -1,5 +0,0 @@
-,,,,,,,
-,,___,,
-,,___,,
-,,___,,
-,,,,,,,

samples/outdoor_test.txt

@@ -1,10 +0,0 @@
-     ,,,,TTTTT     
-   ,,,.....TTT     
-  ,,,.....TTTTT    
-  ,,.......TTT     
-  ,,........TT     
-MM._________..M    
-MM.________..MM    
-MM._____o_____..M  
-M__o___________.M  
-

samples/test.txt

@@ -1,7 +0,0 @@
-,,,,,,,,,,,,,,
-,,,........,,,
-,,,.______.,,,
-,,,._o____.,,,
-,,,.______.,,,
-,,,........,,,
-,,,,,,,,,,,,,,

src/examples/five_room_dungeon.txt

@@ -13,8 +13,8 @@
                ....v.
 
      .^.........
-     ...........
-     ...........       
-     ...........       
+     ...,,,,,...
+     ...,___,...
+     ...,,,,,...
      ........... 5
 

src/tilemapper/cli.py

@@ -2,6 +2,7 @@ import logging
 import os
 import sys
 from pathlib import Path
+from typing import Union
 
 import typer
 from rich.console import Console
@@ -13,13 +14,13 @@ from tilemapper import tileset as _tileset
 app = typer.Typer()
 app_state = {}
 
+INSTALL_DIR = Path(__file__).parent.parent
+
 
 @app.callback(invoke_without_command=True)
 def main(
     ctx: typer.Context,
-    config_dir: Path = typer.Option(
-        default=Path(__file__).parent.parent / "tilesets", help="The path containing tile sets to load."
-    ),
+    config_dir: Path = typer.Option(default=INSTALL_DIR / "tilesets", help="The path containing tile sets to load."),
     verbose: bool = typer.Option(default=False, help="If True, increase verbosity of status messages."),
 ):
     app_state["tileset_manager"] = _tileset.TileSetManager(config_dir)
@@ -31,6 +32,8 @@ def main(
         level=logging.DEBUG if debug else logging.INFO,
         handlers=[RichHandler(rich_tracebacks=True, tracebacks_suppress=[typer])],
     )
+    if ctx.invoked_subcommand is None:
+        render_map()
 
 
 @app.command()
@@ -44,7 +47,9 @@ def list():
 
 @app.command()
 def render(
-    source: Path = typer.Argument(help="The battle map text file to load."),
+    source: Path = typer.Option(
+        help="The battle map text file to load.", default=INSTALL_DIR / "examples" / "five_room_dungeon.txt"
+    ),
     outfile: Path = typer.Option(help="The file to create. If not specified, print to STDOUT", default=None),
     tileset: str = typer.Option(
         help="The name of the tile set to use (run mapper list to see what's available).", default="colorized"
@@ -54,6 +59,14 @@ def render(
     Create a rendered battle map using a tile set. Will generate a PNG file if the tile set supports it,
     otherwise text output.
     """
+    render_map(source, outfile, tileset)
+
+
+def render_map(
+    source: Path = INSTALL_DIR / "examples" / "five_room_dungeon.txt",
+    outfile: Union[Path, None] = None,
+    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}.")