make sc2_version accepted by old join and host methods

sc2/main.py

@@ -415,8 +415,9 @@ async def _join_game(
     portconfig,
     save_replay_as=None,
     game_time_limit=None,
+    sc2_version=None,
 ):
-    async with SC2Process(fullscreen=players[1].fullscreen) as server:
+    async with SC2Process(fullscreen=players[1].fullscreen, sc2_version=sc2_version) as server:
         await server.ping()
 
         client = Client(server._ws)
@@ -466,7 +467,7 @@ def run_game(map_settings, players, **kwargs) -> Result | list[Result | None]:
     Returns a list of two Result enums if the game was "Human vs Bot" or "Bot vs Bot".
     """
     if sum(isinstance(p, (Human, Bot)) for p in players) > 1:
-        host_only_args = ["save_replay_as", "rgb_render_config", "random_seed", "sc2_version", "disable_fog"]
+        host_only_args = ["save_replay_as", "rgb_render_config", "random_seed", "disable_fog"]
         join_kwargs = {k: v for k, v in kwargs.items() if k not in host_only_args}
 
         portconfig = Portconfig()

sc2/sc2process.py

@@ -141,11 +141,23 @@ def find_data_hash(self, target_sc2_version: str) -> str | None:
                 return version["data-hash"]
         return None
 
+    def find_base_dir(self, target_sc2_version: str) -> str | None:
+        """ Returns the base directory from the matching version string. """
+        version: dict
+        for version in self.versions:
+            if version["label"] == target_sc2_version:
+                return "Base"+str(version["base-version"])
+        return None
+
     def _launch(self):
+        if self._sc2_version and not self._base_build:
+            self._base_build = self.find_base_dir(self._sc2_version)
+
         if self._base_build:
             executable = str(paths.latest_executeble(Paths.BASE / "Versions", self._base_build))
         else:
             executable = str(Paths.EXECUTABLE)
+
         if self._port is None:
             self._port = portpicker.pick_unused_port()
             self._used_portpicker = True