each game has now a different rng

backend/bang/deck.py

@@ -24,24 +24,24 @@ class Deck:
         self.event_cards: List[ce.CardEvent] = []
         endgame_cards: List[ce.CardEvent] = []
         if 'fistful_of_cards' in game.expansions:
-            self.event_cards.extend(ce.get_all_events())
+            self.event_cards.extend(ce.get_all_events(game.rng))
             endgame_cards.append(ce.get_endgame_card())
         if 'high_noon' in game.expansions:
-            self.event_cards.extend(ceh.get_all_events())
+            self.event_cards.extend(ceh.get_all_events(game.rng))
             endgame_cards.append(ceh.get_endgame_card())
         if len(self.event_cards) > 0:
-            random.shuffle(self.event_cards)
+            game.rng.shuffle(self.event_cards)
             self.event_cards = self.event_cards[:12]
             self.event_cards.insert(0, None)
             self.event_cards.insert(0, None) # 2 perchè iniziale, e primo flip dallo sceriffo
-            self.event_cards.append(random.choice(endgame_cards))
-        random.shuffle(self.cards)
+            self.event_cards.append(game.rng.choice(endgame_cards))
+        game.rng.shuffle(self.cards)
         self.shop_deck: List[grc.ShopCard] = []
         self.shop_cards: List[grc.ShopCard] = []
         if 'gold_rush' in game.expansions:
             self.shop_cards = [None, None, None]
             self.shop_deck = grc.get_cards()
-            random.shuffle(self.shop_deck)
+            game.rng.shuffle(self.shop_deck)
             self.fill_gold_rush_shop()
         self.scrap_pile: List[cs.Card] = []
         print(f'Deck initialized with {len(self.cards)} cards')
@@ -91,7 +91,7 @@ class Deck:
 
     def reshuffle(self):
         self.cards = self.scrap_pile[:-1].copy()
-        random.shuffle(self.cards)
+        self.game.rng.shuffle(self.cards)
         self.scrap_pile = self.scrap_pile[-1:]
 
     def draw_from_scrap_pile(self) -> cs.Card:

backend/bang/expansions/fistful_of_cards/card_events.py

@@ -101,7 +101,7 @@ def get_endgame_card():
     end_game.expansion = 'fistful-of-cards'
     return end_game
 
-def get_all_events():
+def get_all_events(rng=random):
     cards = [
         Agguato(),
         Cecchino(),
@@ -118,7 +118,7 @@ def get_all_events():
         RouletteRussa(),
         Vendetta(),
     ]
-    random.shuffle(cards)
+    rng.shuffle(cards)
     for c in cards:
         c.expansion = 'fistful-of-cards'
     return cards

backend/bang/expansions/high_noon/card_events.py

@@ -96,7 +96,7 @@ def get_endgame_card():
     end_game.expansion = 'high-noon'
     return end_game
 
-def get_all_events():
+def get_all_events(rng=random):
     cards = [
        Benedizione(),
        Maledizione(),
@@ -113,7 +113,7 @@ def get_all_events():
        Manette(),
        NuovaIdentita(),
     ]
-    random.shuffle(cards)
+    rng.shuffle(cards)
     for c in cards:
         c.expansion = 'high-noon'
     return cards

backend/bang/game.py

@@ -167,7 +167,7 @@ class Game:
                     self.players[i].hand.append(self.deck.draw())
                 self.players[i].notify_self()
             current_roles = [x.role.name for x in self.players]
-            random.shuffle(current_roles)
+            self.rng.shuffle(current_roles)
             cr = ''
             for x in current_roles:
                 if (x not in cr):
@@ -177,7 +177,7 @@ class Game:
 
     def choose_characters(self):
         n = self.characters_to_distribute
-        char_cards = random.sample(characters.all_characters(self.expansions), len(self.players)*n)
+        char_cards = self.rng.sample(characters.all_characters(self.expansions), len(self.players)*n)
         for i in range(len(self.players)):
             self.players[i].set_available_character(char_cards[i * n : i * n + n])
 
@@ -188,10 +188,10 @@ class Game:
         if SEED == None:
             import time
             SEED = int(time.time())
-            random.seed(SEED)
         print(f'{self.name}: SEED IS {SEED}')
-        else:
-            random.seed(SEED)
+        self.SEED = SEED
+        self.rng = random.Random(SEED)
+
         self.players_map = {c.name: i for i, c in enumerate(self.players)}
         self.sio.emit('chat_message', room=self.name, data=f'_starting')
         self.sio.emit('start', room=self.name)
@@ -218,7 +218,7 @@ class Game:
             available_roles = available_roles[:len(self.players)]
         else:
             available_roles = [roles.Renegade(), roles.Renegade()]
-        random.shuffle(available_roles)
+        self.rng.shuffle(available_roles)
         for i in range(len(self.players)):
             self.players[i].set_role(available_roles[i])
             if isinstance(available_roles[i], roles.Sheriff) or (len(available_roles) == 3 and isinstance(available_roles[i], roles.Vice)):