To the player, a game round looks like a sequence of exciting animations—reels spinning, cards flipping, or a ball bouncing. However, the actual result is determined almost instantly. When you set your bet amount and press the start button, your device sends a request to the secure game server.
The server uses a mathematical algorithm to generate a result the millisecond the request is received. This result is final and immutable. The animation you see on your screen is simply a visual representation of that pre-determined outcome. It is important to understand that the reels or cards are not "calculating" as they move; they are merely showing you the result the server has already decided. Once the animation completes, the server updates your account balance based on the outcome, and the round is officially settled.