consolidate all repos to one for archive

semester_4/razvoj_programskih_sistemov/tetris/TetrisRPS/GameNetwork.cs

@@ -0,0 +1,79 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using System.Net;
+using System.Net.Sockets;
+
+namespace TetrisRPS
+{
+    class GameNetwork
+    {
+        TcpListener? tcpListener;
+        TcpClient? tcpClient;
+        NetworkStream? networkStream;
+
+        public GameNetwork() { }
+
+        public void StartListener()
+        {
+            tcpListener = new TcpListener(IPAddress.Any, 8000);
+            tcpListener.Start();
+            tcpClient = tcpListener.AcceptTcpClient();
+            networkStream = tcpClient.GetStream();
+        }
+
+        public void StopListener()
+        {
+            networkStream?.Close();
+            tcpClient?.Close();
+            tcpListener?.Stop();
+        }
+
+        public void StartClient(string ip)
+        {
+            tcpClient = new TcpClient(ip, 8000);
+            networkStream = tcpClient.GetStream();
+        }
+
+        public void StopClient()
+        {
+            networkStream?.Close();
+            tcpClient?.Close();  
+        }
+
+        public delegate void EventReceived(int e);
+        public event EventReceived? OnEventReceived;
+        byte[] data = new byte[4];
+
+        public void BeginRead()
+        {
+            if (networkStream == null) return;
+            networkStream?.BeginRead(data, 0, data.Length, OnReadComplete, null);
+        }
+
+        private void OnReadComplete (IAsyncResult ar)
+        {
+            try
+            {
+                int bytesRead = networkStream.EndRead(ar);
+                if (bytesRead > 0)
+                {
+                    int ret = BitConverter.ToInt32(data);
+                    OnEventReceived?.Invoke(ret);
+                }
+            }
+            catch (Exception ex) { }
+        }
+
+        public void SendData(int key)
+        {
+            try
+            {
+                byte[] bytes = BitConverter.GetBytes(key);
+                networkStream?.Write(bytes, 0, bytes.Length);
+            }catch(Exception e) { }
+        }  
+    }
+}