Notes

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;
using System.Net.Sockets;

namespace WindowsFormsApp3
{
public partial class Form2 : Form
{
private char playerChar;
private char opponentChar;
private Socket sck;
private BackgroundWorker msgReceiver = new BackgroundWorker();
private TcpListener server = null;
private TcpClient client;



public Form2(bool isHost, string ip=null)
{
InitializeComponent();
msgReceiver.DoWork += MsgReceiver_DoWork;

if (isHost)
{
playerChar = 'X';
opponentChar = 'O';

server = new TcpListener(System.Net.IPAddress.Any, 5732);
server.Start();

sck = server.AcceptSocket();
}
else
{
playerChar = 'O';
opponentChar = 'X';
try
{
client = new TcpClient(ip,5732);
sck = client.Client;
msgReceiver.RunWorkerAsync();
}
catch(Exception ex)
{
MessageBox.Show(ex.Message);
Close();
}
}

}

private void MsgReceiver_DoWork(object sender, DoWorkEventArgs e)
{
if (WinState())
return;
StopAll();
label1.Text = "Opponent's Turn";
RecieveCmd();
label1.Text = " Your Turn";
if (!WinState())
EnableAll();
}


private bool WinState()
{
//hundlun 1
if(button1.Text == button2.Text && button2.Text == button3.Text
&& button3.Text != "")
{
if (button1.Text[0] == playerChar)
{
label1.Text = "You Won!";
MessageBox.Show("You Won!");
RestartGame();
}
else
{
label1.Text = "You lose!";
MessageBox.Show("You lost!");
RestartGame();
}
return true;

}
//hundlun 2
else if (button4.Text == button5.Text && button5.Text == button6.Text
&& button6.Text != "")
{
if (button4.Text[0] == playerChar)
{
label1.Text = "You Won!";
MessageBox.Show("You Won!");
RestartGame();
}
else
{
label1.Text = "You lose!";
MessageBox.Show("You lost!");
RestartGame();
}
return true;

}
//hundlun 3
else if (button7.Text == button8.Text && button8.Text == button9.Text
&& button9.Text != "")
{
if (button7.Text[0] == playerChar)
{
label1.Text = "You Won!";
MessageBox.Show("You Won!");
RestartGame();
}
else
{
label1.Text = "You lose!";
MessageBox.Show("You lost!");
RestartGame();
}
return true;

}
//bosoo 1
else if (button1.Text == button4.Text && button4.Text == button7.Text
&& button7.Text != "")
{
if (button1.Text[0] == playerChar)
{
label1.Text = "You Won!";
MessageBox.Show("You Won!");
RestartGame();
}
else
{
label1.Text = "You lose!";
MessageBox.Show("You lost!");
RestartGame();
}
return true;

}

//bosoo 2
else if (button2.Text == button5.Text && button5.Text == button8.Text
&& button8.Text != "")
{
if (button2.Text[0] == playerChar)
{
label1.Text = "You Won!";
MessageBox.Show("You Won!");
RestartGame();
}
else
{
label1.Text = "You lose!";
MessageBox.Show("You lost!");
RestartGame();
}
return true;

}

//bosoo3
else if (button3.Text == button6.Text && button6.Text == button9.Text
&& button9.Text != "")
{
if (button3.Text[0] == playerChar)
{
label1.Text = "You Won!";
MessageBox.Show("You Won!");
RestartGame();
}
else
{
label1.Text = "You lose!";
MessageBox.Show("You lost!");
RestartGame();
}
return true;

}

//tashuu 1
else if (button1.Text == button5.Text && button5.Text == button9.Text
&& button9.Text != "")
{
if (button9.Text[0] == playerChar)
{
label1.Text = "You Won!";
MessageBox.Show("You Won!");
RestartGame();
}
else
{
label1.Text = "You lose!";
MessageBox.Show("You lost!");
RestartGame();
}
return true;

}
//tashuu2
else if (button3.Text == button5.Text && button5.Text == button7.Text
&& button7.Text != "")
{
if (button3.Text[0] == playerChar)
{
label1.Text = "You Won!";
MessageBox.Show("You Won!");
RestartGame();
}
else
{
label1.Text = "You lose!";
MessageBox.Show("You lost!");
RestartGame();
}
return true;

}else if(button1.Text!="" && button1.Text != "" && button2.Text != "" && button3.Text != "" &&
button4.Text != "" && button5.Text != "" && button6.Text != "" && button7.Text != "" &&
button8.Text != "" && button9.Text != "")
{
label1.Text = "It's a Draw";
MessageBox.Show("It's a Draw");
RestartGame();
return true;
}
return false;
}
private void RestartGame()
{
this.Close();
}

private void StopAll()
{
button1.Enabled = false;
button2.Enabled = false;
button3.Enabled = false;
button4.Enabled = false;
button5.Enabled = false;
button6.Enabled = false;
button7.Enabled = false;
button8.Enabled = false;
button9.Enabled = false;

}

private void EnableAll()
{
if (button1.Text == "")
button1.Enabled = true;
if (button2.Text == "")
button2.Enabled = true;
if (button3.Text == "")
button3.Enabled = true;
if (button4.Text == "")
button4.Enabled = true;
if (button5.Text == "")
button5.Enabled = true;
if (button6.Text == "")
button6.Enabled = true;
if (button7.Text == "")
button7.Enabled = true;
if (button8.Text == "")
button8.Enabled = true;
if (button9.Text == "")
button9.Enabled = true;
}

private void RecieveCmd()
{
byte[] buffer = new byte[1];
sck.Receive(buffer);

if (buffer[0] == 1)
button1.Text = opponentChar.ToString();
if (buffer[0] == 2)
button2.Text = opponentChar.ToString();
if (buffer[0] == 3)
button3.Text = opponentChar.ToString();
if (buffer[0] == 4)
button4.Text = opponentChar.ToString();
if (buffer[0] == 5)
button5.Text = opponentChar.ToString();
if (buffer[0] == 6)
button6.Text = opponentChar.ToString();
if (buffer[0] == 7)
button7.Text = opponentChar.ToString();
if (buffer[0] == 8)
button8.Text = opponentChar.ToString();
if (buffer[0] == 9)
button9.Text = opponentChar.ToString();

}

private void button1_Click(object sender, EventArgs e)
{

}

private void button2_Click(object sender, EventArgs e)
{

}

private void button3_Click(object sender, EventArgs e)
{

}

private void button4_Click(object sender, EventArgs e)
{

}

private void button5_Click(object sender, EventArgs e)
{

}

private void button6_Click(object sender, EventArgs e)
{

}

private void button7_Click(object sender, EventArgs e)
{

}

private void button8_Click(object sender, EventArgs e)
{

}

private void button9_Click(object sender, EventArgs e)
{

}
}
}