Update boat position according to boat location messages in StreamedRace

- Added StreamedRace constructor accepting VisualiserInput
- Modified VisualiserInput constructor to accept Socket
- Refactored controller setup of Race

#story[782]

visualiser/src/main/java/seng302/Mock/StreamedRace.java

@@ -6,7 +6,10 @@ import seng302.Constants;
 import seng302.Controllers.RaceController;
 import seng302.GPSCoordinate;
 import seng302.Model.*;
+import seng302.Networking.MessageDecoders.BoatLocationDecoder;
+import seng302.Networking.Utils.BoatLocationMessage;
 import seng302.RaceDataSource;
+import seng302.VisualiserInput;
 
 import java.awt.geom.Point2D;
 import java.util.*;
@@ -15,12 +18,12 @@ import java.util.*;
  * Created by jjg64 on 21/04/17.
  */
 public class StreamedRace extends Race {
-    private RaceDataSource raceData;
+    private VisualiserInput visualiserInput;
+    private double MMPS_TO_KN = 0.001944;
 
-    public StreamedRace(RaceDataSource raceData, RaceController controller, int scaleFactor) {
-        super(raceData.getBoats(), raceData.getLegs(), controller, scaleFactor);
-        this.raceData = raceData;
-        this.scaleFactor = 1;   // There will be no scaling in a live streamed race
+    public StreamedRace(VisualiserInput visualiserInput, RaceController controller) {
+        super(visualiserInput.getCourse(), controller, 1);
+        this.visualiserInput = visualiserInput;
     }
 
     public void initialiseBoats() {
@@ -72,8 +75,16 @@ public class StreamedRace extends Race {
      * @param millisecondsElapsed time since last update
      */
     protected void updatePosition(Boat boat, int millisecondsElapsed) {
-        //TODO Grab info from network
-        // setPosition(boat, coordinate);
+        int sourceID = boat.getSourceID();
+        BoatLocationMessage boatLocationMessage = visualiserInput.getBoatLocationMessage(sourceID);
+        if(boatLocationMessage != null) {
+            System.out.println(sourceID);
+            double lat = boatLocationMessage.getLatitudeDouble();
+            double lon = boatLocationMessage.getLongitudeDouble();
+            boat.setCurrentPosition(new GPSCoordinate(lat, lon));
+            boat.setHeading(boatLocationMessage.getHeadingDegrees());
+            boat.setVelocity(boatLocationMessage.getBoatSpeed() * MMPS_TO_KN);
+        }
     }
 
     protected void setPosition(Boat boat, GPSCoordinate coordinate) {