Add MDC for Mount & Blade II.

Author: Holt59

README.md

@@ -50,7 +50,8 @@ git clone https://github.com/Holt59/modorganizer-basic_games basic_games
 | [Dark Messiah of Might & Magic](https://store.steampowered.com/app/2100/Dark_Messiah_of_Might__Magic/) | Holt59 | [game_darkmessiah[...].py](games/game_darkmessiahofmightandmagic.py) | <ul><li>steam detection</li><li>save game preview</li></ul> |
 | [Darkest Dungeon](https://store.steampowered.com/app/262060/Darkest_Dungeon/) | [erri120](https://github.com/erri120) | [game_darkestdungeon.py](games/game_darkestdungeon.py) | <ul><li>steam detection</li></ul> |
 | [Dungeon Siege II](https://store.steampowered.com/app/39200/Dungeon_Siege_II/) | Holt59 | [game_dungeonsiege2.py](games/game_dungeonsiege2.py) | <ul><li>steam detection</li><li>mod data checker</li></ul> |
-| S.T.A.L.K.E.R. Anomaly| [Qudix](https://github.com/Qudix) | [game_stalkeranomaly.py](games/game_stalkeranomaly.py) | |
+| [Mount & Blade II: Bannerlord](https://store.steampowered.com/app/261550/Mount__Blade_II_Bannerlord/) | Holt59 | | <ul><li>steam detection</li><li>mod data checker</li></ul> |
+| [S.T.A.L.K.E.R. Anomaly](https://www.stalker-anomaly.com/) | [Qudix](https://github.com/Qudix) | [game_stalkeranomaly.py](games/game_stalkeranomaly.py) | |
 | [Stardew Valley](https://store.steampowered.com/app/413150/Stardew_Valley/) | [Syer10](https://github.com/Syer10), Holt59 | [game_stardewvalley.py](games/game_stardewvalley.py) | <ul><li>steam detection</li><li>mod data checker</li></ul> |
 | [The Witcher 3: Wild Hunt](https://store.steampowered.com/app/292030/The_Witcher_3_Wild_Hunt/) | Holt59 | [game_witcher3.py](games/game_witcher3.py) | <ul><li>steam detection</li><li>save game preview</li></ul> |
 

games/game_mountandblade2.py

@@ -2,11 +2,40 @@
 
 from PyQt5.QtCore import QFileInfo
 
+from typing import List
+
 import mobase
 
 from ..basic_game import BasicGame
 
 
+class MountAndBladeIIModDataChecker(mobase.ModDataChecker):
+
+    _valid_folders: List[str] = [
+        "native",
+        "sandbox",
+        "sandboxcore",
+        "storymode",
+        "custombattle",
+    ]
+
+    def __init__(self):
+        super().__init__()
+
+    def dataLooksValid(
+        self, tree: mobase.IFileTree
+    ) -> mobase.ModDataChecker.CheckReturn:
+
+        for e in tree:
+            if e.isDir():
+                if e.name().lower() in self._valid_folders:
+                    return mobase.ModDataChecker.VALID
+                if e.exists("SubModule.xml", mobase.IFileTree.FILE):  # type: ignore
+                    return mobase.ModDataChecker.VALID
+
+        return mobase.ModDataChecker.INVALID
+
+
 class MountAndBladeIIGame(BasicGame):
     Name = "Mount & Blade II: Bannerlord"
     Author = "Holt59"
@@ -26,6 +55,11 @@ class MountAndBladeIIGame(BasicGame):
     GameNexusId = 3174
     GameSteamId = 261550
 
+    def init(self, organizer: mobase.IOrganizer):
+        super().init(organizer)
+        self._featureMap[mobase.ModDataChecker] = MountAndBladeIIModDataChecker()
+        return True
+
     def executables(self):
         return [
             mobase.ExecutableInfo(
@@ -54,4 +88,4 @@ def executables(self):
                     self.gameDirectory(), "bin/Win64_Shipping_Client/Bannerlord_BE.exe",
                 ),
             ),
-        ]
+        ]