Add optional doom_flags.txt so you can add flags for all games. This is experimental and may be removed.

Toby Doom Launcher.py

@@ -1678,6 +1678,38 @@ class DoomLauncher(QMainWindow):
         process.wait()  # Wait for the game to finish
         QApplication.instance().quit()  # Quit the application
 
+    def get_flags_from_file(self) -> List[str]:
+        """Read additional launch flags from doom_flags.txt"""
+        flags = []
+    
+        # Check multiple possible locations for the flags file
+        flag_file_locations = [
+            Path.cwd() / "doom_flags.txt",  # Current directory
+            self.gamePath / "doom_flags.txt",  # Game path
+            Path.home() / "doom_flags.txt",  # User's home directory
+            Path.home() / ".local/doom/doom_flags.txt",  # ~/.local/doom directory
+            Path.home() / ".local/share/doom/doom_flags.txt"  # ~/.local/share/doom directory
+        ]
+    
+        for flag_file in flag_file_locations:
+            if flag_file.exists():
+                try:
+                    with open(flag_file, 'r') as f:
+                        # Read all lines, strip whitespace, and filter out empty lines
+                        lines = [line.strip() for line in f.readlines()]
+                        lines = [line for line in lines if line and not line.startswith('#')]
+
+                        # Split each line by whitespace to get individual flags
+                        for line in lines:
+                            flags.extend(line.split())
+                    
+                        print(f"Loaded {len(flags)} flags from {flag_file}")
+                        break  # Use the first file found
+                except Exception as e:
+                    print(f"Error reading flags file {flag_file}: {e}", file=sys.stderr)
+    
+        return flags
+
     def launch_game(self, gameFiles: List[str], gameFlags: List[str] = None):
         """Launch game with speech processing"""
         if not gameFiles:
@@ -1696,6 +1728,15 @@ class DoomLauncher(QMainWindow):
         
         iwadPath = self.iwadCombo.itemData(iwadIndex)
 
+        # Initialize gameFlags if None
+        if gameFlags is None:
+            gameFlags = []
+        
+        # Get additional flags from doom_flags.txt
+        additionalFlags = self.get_flags_from_file()
+        if additionalFlags:
+            gameFlags.extend(additionalFlags)
+
         try:
             if platform.system() == "Windows":
                 configFile = Path.cwd() / 'TobyConfig.ini'