Do not bog down the socket with updates. Instead run actions in separate thread.

sig/App.java

@@ -5,6 +5,11 @@ import java.io.File;
 import java.io.IOException;
 import java.net.ServerSocket;
 import java.net.Socket;
+import java.util.ArrayList;
+import java.util.Collection;
+import java.util.Collections;
+import java.util.List;
+import java.util.Queue;
 import java.util.Timer;
 import java.util.TimerTask;
 import java.util.Map.Entry;
@@ -124,18 +129,6 @@ class Client {
             // takes input from terminal
             input = new DataInputStream(System.in);
  
- 
-            Timer updateTimer=new Timer();
-            updateTimer.schedule(new TimerTask(){
-                @Override
-                public void run() {
-                    try {
-                        out.writeUTF("UPDATE");
-                    } catch (IOException e) {
-                        e.printStackTrace();
-                    }
-                }
-            },100,100);
             // sends output to the socket
             out = new DataOutputStream(
                 socket.getOutputStream());
@@ -299,6 +292,36 @@ class Server
         }
     }
 
+    Collection<String>commandQueue=Collections.synchronizedCollection(new ArrayList<>());
+ 
+    // constructor with port
+    public Server(int port)
+    {
+        try {
+            r = new Robot();
+        } catch (AWTException e) {
+            e.printStackTrace();
+        }
+        // starts server and waits for a connection
+        try
+        {
+            server = new ServerSocket(port);
+            System.out.println("Server started");
+ 
+            System.out.println("Waiting for a client ...");
+ 
+            socket = server.accept();
+            System.out.println("Client accepted");
+ 
+            // takes input from the client socket
+            in = new DataInputStream(
+                new BufferedInputStream(socket.getInputStream()));
+ 
+            String line = "";
+
+            Thread t = new Thread(new Runnable(){
+
+
                 void run(Rotation rot){
                     switch (rot){
                         case SCHOLAR:{
@@ -368,39 +391,11 @@ class Server
                     }
                 }
 
-    // constructor with port
+                @Override
-    public Server(int port)
+                public void run() {
-    {
+                    while (true){
-        try {
+                        for (String command:commandQueue){
-            r = new Robot();
+                            switch (command){
-        } catch (AWTException e) {
-            e.printStackTrace();
-        }
-        // starts server and waits for a connection
-        try
-        {
-            server = new ServerSocket(port);
-            System.out.println("Server started");
- 
-            System.out.println("Waiting for a client ...");
- 
-            socket = server.accept();
-            System.out.println("Client accepted");
- 
-            // takes input from the client socket
-            in = new DataInputStream(
-                new BufferedInputStream(socket.getInputStream()));
- 
-            String line = "";
- 
-            // reads message from client until "Over" is sent
-            while (!line.equals("Over"))
-            {
-                try
-                {
-                    line = in.readUTF();
-                    System.out.println("Received: "+line);
-                    switch (line){
                                 case "FOLLOW":{
                                     PressKeyWithModifier(KeyEvent.VK_CONTROL,KeyEvent.VK_7);
                                 }break;
@@ -455,14 +450,10 @@ class Server
 
                                 }break;
                                 default:{
-                            System.out.println("Unknown command: "+line);
+                                    System.out.println("Unknown command: "+command);
                                 }
                             }
-                }
+                            throw new UnsupportedOperationException("Unimplemented method 'run'");
-                catch(IOException i)
-                {
-                    System.out.println(i);
-                    break;
                         }
 
                         if (queueUpSprint&&nextActionTimer==0){
@@ -484,6 +475,28 @@ class Server
                         whisperingDawnTimer=Math.max(0,whisperingDawnTimer-difference);
                         feyIlluminationTimer=Math.max(0,feyIlluminationTimer-difference);
                         lastFrame=System.currentTimeMillis();
+                        r.delay(100);
+                    }
+                }
+            });
+
+            t.start();
+ 
+            // reads message from client until "Over" is sent
+            while (!line.equals("Over"))
+            {
+                try
+                {
+                    line = in.readUTF();
+                    System.out.println("Received: "+line);
+                    commandQueue.add(line);
+                   
+                }
+                catch(IOException i)
+                {
+                    System.out.println(i);
+                    break;
+                }
             }
             System.out.println("Closing connection");