public void Login()
{
TS2Packet packet = new TS2Packet();
packet.Create(TS2.CONNECTION, TS2.LOGIN, 0x00000000, 0x00000000, SequenceNumber++);
packet.Login(txtNickname.Text, txtUsername.Text, (string.IsNullOrEmpty(txtPassword.Text) ? txtServerPassword.Text : txtPassword.Text), txtPlatform.Text, txtOS.Text);
net.Send(packet.toByteArray(), Target);
}