private static IPClient client;
private static AutoResetEvent autoEvent = new AutoResetEvent(false);
static void Main(string[] _)
{
    try
    {
        client = new IPClient(); // We create a new Terraria Client
        client.ServerJoined += Ai; // Function that will be called once the bot is connected
        client.ConnectWithIP("localhost", PlayerInformation.GetRandomPlayer("MyName", PlayerDifficulty.Easy));
    }
    catch (SocketException se)
    { } // The bot wasn't able to connect to the server
    autoEvent.WaitOne(); // We just wait indefinitly
}

private static void Ai(PlayerSelf me)
{
    // Just do what you want here, you probably want to interract with your PlayerSelf to do stuffs
}