Update app.py

app.py

@@ -52,4 +52,4 @@ def update(deltaTime):
     global head, tail, food_positions, food_manager
     while deltaTime > 0:
         current_state = check_collision()
-        if food_manager.amount and all(not c[-1] for c in food_)
+        if food_manager.amount and all(not c[-1] for c in food_):