tournament: use tournamentGameModel instead gameModel

tournament/models.py

@@ -1,4 +1,5 @@
 from __future__ import annotations
+from typing import Any
 
 from games.models import GameModel
 
@@ -96,10 +97,20 @@ class TournamentGameModel(GameModel):
     round = models.IntegerField()
     pos = models.IntegerField()
 
+    def __init__(self, *args: Any, **kwargs: Any) -> None:
+        super().__init__(*args, **kwargs)
+
+        from .consumers import tournament_manager
+        self.room = tournament_manager.get(self.tournament)
+
+
+    def start(self):
+        super().start()
+
+        self.room.set_game_as_started(self)
+        
+
     def finish(self, winner_id):
         super().finish(winner_id)
 
-        from .consumers import tournament_manager
-
-        room = tournament_manager.get(self.tournament)
-        room.set_game_as_finished(self)
+        self.room.set_game_as_finished(self)