Describe the flow of a player's move: how do data pass from WebSocket to update the state for the second player?

When a player makes a move, the client sends data via WebSocket to the server. The server receives the message, validates the move (for example, checks game rules), updates the internal game state, and then sends the updated state or move event to the second player through their WebSocket connection. The second player receives the data, the client updates the UI, displaying the new move.

Approximate flow:

1. Player A sends a move via WebSocket: send(move).
2. The server receives the message and checks its correctness.
3. The server updates the game state in memory or in a database.
4. The server sends an update to Player B: connB.send(updatedState).
5. Player B's client receives the data and updates the interface.

// Example of handling a message on the server
func handleMove(playerID string, move Move) {
    if validateMove(move) {
        gameState.ApplyMove(move)
        broadcastToOpponent(playerID, gameState)
    }
}