Minor structural changes. GameState now has a thread which updates itself so its update

rate can be independent of sending packets to the client in the MainServerThread

#story[986] #pair[wmu16, ptg19]

src/main/java/seng302/gameServer/MainServerThread.java

@@ -17,22 +17,17 @@ import java.util.concurrent.PriorityBlockingQueue;
  * A class describing the overall server, which creates and collects server threads for each client
  * Created by wmu16 on 13/07/17.
  */
-public class MainServerThread extends Observable implements Runnable, PacketBufferDelegate, ClientConnectionDelegate{
+public class MainServerThread extends Observable implements Runnable, ClientConnectionDelegate{
 
     private static final int PORT = 4942;
-    private static final Integer MAX_NUM_PLAYERS = 3;
-    private static final Integer UPDATES_PER_SECOND = 2;
+    private static final Integer CLIENT_UPDATES_PER_SECOND = 5;
     private static final int LOG_LEVEL = 1;
 
     private Thread thread;
 
     private ServerSocket serverSocket = null;
-    private Socket socket;
     private ArrayList<ServerToClientThread> serverToClientThreads = new ArrayList<>();
 
-    private PriorityBlockingQueue<StreamPacket> packetBuffer;
-
-
     public MainServerThread() {
         try {
             serverSocket = new ServerSocket(PORT);
@@ -40,8 +35,6 @@ public class MainServerThread extends Observable implements Runnable, PacketBuff
             serverLog("IO error in server thread handler upon trying to make new server socket", 0);
         }
 
-        packetBuffer = new PriorityBlockingQueue<>();
-
         thread = new Thread(this);
         thread.start();
     }
@@ -57,22 +50,20 @@ public class MainServerThread extends Observable implements Runnable, PacketBuff
         heartbeatThread.start();
         serverListenThread.start();
 
-
         //You should handle interrupts in some way, so that the thread won't keep on forever if you exit the app.
         while (!thread.isInterrupted()) {
             try {
-                Thread.sleep(1000 / UPDATES_PER_SECOND);
+                Thread.sleep(1000 / CLIENT_UPDATES_PER_SECOND);
             } catch (InterruptedException e) {
                 e.printStackTrace();
             }
 
             if (GameState.getCurrentStage() == GameStages.PRE_RACE) {
-                GameState.update();
+                updateClients();
             }
 
             //RACING
             if (GameState.getCurrentStage() == GameStages.RACING) {
-                GameState.update();
                 updateClients();
             }
 
@@ -81,14 +72,6 @@ public class MainServerThread extends Observable implements Runnable, PacketBuff
 
             }
 
-            while (!packetBuffer.isEmpty()){
-                try {
-                    StreamPacket packet = packetBuffer.take();
-                    ClientPacketParser.parsePacket(packet);
-                } catch (InterruptedException e) {
-                    continue;
-                }
-            }
         }
 
         // TODO: 14/07/17 wmu16 - Send out disconnect packet to clients
@@ -113,11 +96,6 @@ public class MainServerThread extends Observable implements Runnable, PacketBuff
         }
     }
 
-    @Override
-    public boolean addToBuffer(StreamPacket streamPacket) {
-        return packetBuffer.add(streamPacket);
-    }
-
     /**
      * A client has tried to connect to the server
      * @param serverToClientThread The player that connected