Yacht now extends observable and can notify server to client thread to broadcast message.

#story[1124]

src/main/java/seng302/gameServer/ServerToClientThread.java

@@ -1,16 +1,12 @@
 package seng302.gameServer;
 
 
-import seng302.gameServer.server.messages.*;
+import java.io.BufferedReader;
-import seng302.model.Player;
+import java.io.ByteArrayOutputStream;
-import seng302.model.Yacht;
+import java.io.IOException;
-import seng302.model.stream.packets.PacketType;
+import java.io.InputStream;
-import seng302.model.stream.packets.StreamPacket;
+import java.io.InputStreamReader;
-import seng302.model.stream.xml.generator.Race;
+import java.io.OutputStream;
-import seng302.model.stream.xml.generator.Regatta;
-import seng302.utilities.XMLGenerator;
-
-import java.io.*;
 import java.net.Socket;
 import java.net.SocketException;
 import java.time.LocalDateTime;
@@ -22,6 +18,26 @@ import java.util.concurrent.ThreadLocalRandom;
 import java.util.stream.Collectors;
 import java.util.zip.CRC32;
 import java.util.zip.Checksum;
+import seng302.gameServer.server.messages.BoatActionType;
+import seng302.gameServer.server.messages.BoatLocationMessage;
+import seng302.gameServer.server.messages.BoatStatus;
+import seng302.gameServer.server.messages.BoatSubMessage;
+import seng302.gameServer.server.messages.ClientType;
+import seng302.gameServer.server.messages.Message;
+import seng302.gameServer.server.messages.RaceStatus;
+import seng302.gameServer.server.messages.RaceStatusMessage;
+import seng302.gameServer.server.messages.RaceType;
+import seng302.gameServer.server.messages.RegistrationResponseMessage;
+import seng302.gameServer.server.messages.RegistrationResponseStatus;
+import seng302.gameServer.server.messages.XMLMessage;
+import seng302.gameServer.server.messages.XMLMessageSubType;
+import seng302.model.Player;
+import seng302.model.Yacht;
+import seng302.model.stream.packets.PacketType;
+import seng302.model.stream.packets.StreamPacket;
+import seng302.model.stream.xml.generator.Race;
+import seng302.model.stream.xml.generator.Regatta;
+import seng302.utilities.XMLGenerator;
 
 /**
  * A class describing a single connection to a Client for the purposes of sending and receiving on
@@ -99,6 +115,7 @@ public class ServerToClientThread implements Runnable, Observer {
                 "Yacht", sourceId, sourceId.toString(), fName, fName + " " + lName, "NZ"
         );
 
+        yacht.addObserver(this); // TODO: yacht can notify mark rounding message hyi25 13/8/17
         GameState.addYacht(sourceId, yacht);
         GameState.addPlayer(new Player(socket, yacht));
     }
@@ -112,8 +129,12 @@ public class ServerToClientThread implements Runnable, Observer {
 
     @Override
     public void update(Observable o, Object arg) {
+        if (arg != null) {
+            sendMessage((Message) arg);
+        } else {
             sendSetupMessages();
         }
+    }
 
     private void completeRegistration(ClientType clientType) throws IOException {
         // Fail if not a player

src/main/java/seng302/model/Yacht.java

@@ -5,6 +5,8 @@ import java.text.SimpleDateFormat;
 import java.util.ArrayList;
 import java.util.HashMap;
 import java.util.List;
+import java.util.Observable;
+import java.util.Observer;
 import javafx.beans.property.ReadOnlyDoubleProperty;
 import javafx.beans.property.ReadOnlyDoubleWrapper;
 import javafx.beans.property.ReadOnlyLongProperty;
@@ -13,20 +15,24 @@ import javafx.scene.paint.Color;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 import seng302.gameServer.GameState;
+import seng302.gameServer.server.messages.MarkRoundingMessage;
+import seng302.gameServer.server.messages.Message;
+import seng302.gameServer.server.messages.RoundingBoatStatus;
+import seng302.gameServer.server.messages.RoundingSide;
 import seng302.model.mark.CompoundMark;
 import seng302.model.mark.Mark;
 import seng302.utilities.GeoUtility;
 
 /**
- * Yacht class for the racing boat.
+ * Yacht class for the racing boat. <p> Class created to store more variables (eg. boat statuses)
- *
+ * compared to the XMLParser boat class, also done outside Boat class because some old variables are
- * Class created to store more variables (eg. boat statuses) compared to the XMLParser boat class,
+ * not used anymore.
- * also done outside Boat class because some old variables are not used anymore.
  */
-public class Yacht {
+public class Yacht extends Observable {
 
     @FunctionalInterface
     public interface YachtLocationListener {
+
         void notifyLocation(Yacht yacht, double lat, double lon, double heading, double velocity);
     }
 
@@ -145,10 +151,29 @@ public class Yacht {
         // TODO: 3/08/17 wmu16 - Implement line cross check here
     }
 
+    /**
+     * Add ServerToClientThread as the observer, this observer pattern mainly server for the boat
+     * rounding package.
+     */
+    @Override
+    public void addObserver(Observer o) {
+        super.addObserver(o);
+    }
+
+    private void sendMarkRoundingMessage(Integer passedMarkSeqID) {
+        // TODO: 13/8/17 figure out the rounding side, rounded mark source ID and boat status.
+        Message markRoundingMessage = new MarkRoundingMessage(0, 0,
+            getSourceId(), RoundingBoatStatus.RACING, RoundingSide.UNKNOWN,
+            GameState.getMarkOrder().getCurrentMark(passedMarkSeqID).getSubMark(1).getSourceID());
+        logger.debug("Sending mark rounding message...");
+        setChanged();
+        notifyObservers(markRoundingMessage);
+    }
 
     /**
-     * Calculates the distance to the next mark (closest of the two if a gate mark). For purposes
+     * Calculates the distance to the next mark (closest of the two if a gate mark). For purposes of
-     * of mark rounding
+     * mark rounding
+     *
      * @return A distance in metres. Returns -1 if there is no next mark
      * @throws IndexOutOfBoundsException If the next mark is null (ie the last mark in the race)
      * Check first using {@link seng302.model.mark.MarkOrder#isLastMark(Integer)}
@@ -169,11 +194,8 @@ public class Yacht {
 
 
     /**
-     * 4 Different cases of progression in the race
+     * 4 Different cases of progression in the race 1 - Passing the start line 2 - Passing any
-     * 1 - Passing the start line
+     * in-race Gate 3 - Passing any in-race Mark 4 - Passing the finish line
-     * 2 - Passing any in-race Gate
-     * 3 - Passing any in-race Mark
-     * 4 - Passing the finish line
      */
     private void checkForLegProgression() {
         CompoundMark currentMark = GameState.getMarkOrder().getCurrentMark(currentMarkSeqID);
@@ -202,6 +224,7 @@ public class Yacht {
         if (crossedLine > 0) {
             Boolean isClockwiseCross = GeoUtility.isClockwise(mark1, mark2, nextMark.getMidPoint());
             if (crossedLine == 2 && isClockwiseCross || crossedLine == 1 && !isClockwiseCross) {
+                sendMarkRoundingMessage(currentMarkSeqID);
                 currentMarkSeqID++;
                 logMarkRounding(currentMark);
             }
@@ -211,8 +234,7 @@ public class Yacht {
 
     /**
      * This algorithm checks for mark rounding. And increments the currentMarSeqID number attribute
-     * of the yacht if so.
+     * of the yacht if so. A visual representation of this algorithm can be seen on the Wiki under
-     * A visual representation of this algorithm can be seen on the Wiki under
      * 'mark passing algorithm'
      */
     private void checkMarkRounding(CompoundMark currentMark) {
@@ -275,6 +297,7 @@ public class Yacht {
             if (prevMarkSide == nextMarkSide) {
                 checkMarkRounding(currentMark);
             } else {
+                sendMarkRoundingMessage(currentMarkSeqID);
                 currentMarkSeqID++;
                 logMarkRounding(currentMark);
             }
@@ -295,6 +318,7 @@ public class Yacht {
         if (crossedLine > 0) {
             Boolean isClockwiseCross = GeoUtility.isClockwise(mark1, mark2, prevMark.getMidPoint());
             if (crossedLine == 1 && isClockwiseCross || crossedLine == 2 && !isClockwiseCross) {
+                sendMarkRoundingMessage(currentMarkSeqID);
                 currentMarkSeqID++;
                 finishedRace = true;
                 logMarkRounding(currentMark);
@@ -306,8 +330,7 @@ public class Yacht {
 
 
     /**
-     * Adjusts the heading of the boat by a given amount, while recording the boats
+     * Adjusts the heading of the boat by a given amount, while recording the boats last heading.
-     * last heading.
      *
      * @param amount the amount by which to adjust the boat heading.
      */
@@ -333,6 +356,7 @@ public class Yacht {
 
     /**
      * Enables the boats auto pilot feature, which will move the boat towards a given heading.
+     *
      * @param thisHeading The heading to move the boat towards.
      */
     private void setAutoPilot(Double thisHeading) {
@@ -441,9 +465,8 @@ public class Yacht {
     }
 
     /**
-     * Takes a given heading and rotates the boat towards that heading.
+     * Takes a given heading and rotates the boat towards that heading. This does not care about
-     * This does not care about being upwind or downwind, just which direction will reach a given
+     * being upwind or downwind, just which direction will reach a given heading faster.
-     * heading faster.
      *
      * @param newHeading The heading to turn the yacht towards.
      */
@@ -474,12 +497,16 @@ public class Yacht {
 
     public Integer getSourceId() {
         //@TODO Remove and merge with Creating Game Loop
-        if (sourceId == null) return 0;
+        if (sourceId == null) {
+            return 0;
+        }
         return sourceId;
     }
 
     public String getHullID() {
-        if (hullID == null) return "";
+        if (hullID == null) {
+            return "";
+        }
         return hullID;
     }
 
@@ -492,7 +519,9 @@ public class Yacht {
     }
 
     public String getCountry() {
-        if (country == null) return "";
+        if (country == null) {
+            return "";
+        }
         return country;
     }