Began work on ConnectionController for selecting active hosts on startup via GUI.

#story[782]

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

@@ -1,5 +1,6 @@
 package seng302.Mock;
 
+import javafx.animation.AnimationTimer;
 import javafx.collections.FXCollections;
 import org.geotools.referencing.GeodeticCalculator;
 import seng302.*;
@@ -12,6 +13,7 @@ import seng302.Networking.Utils.Enums.BoatStatus;
 import seng302.Networking.Utils.BoatLocationMessage;
 
 import java.awt.geom.Point2D;
+import java.time.Instant;
 import java.util.*;
 
 /**
@@ -99,4 +101,39 @@ public class StreamedRace extends Race {
         boat.setCurrentPosition(coordinate);
     }
 
+    @Override
+    protected void countdownTimer() {
+        new AnimationTimer() {
+            long minutes;
+            long currentTimeInSeconds;
+            long remainingSeconds;
+            long hours;
+            long timeLeft;
+
+            @Override
+            public void handle(long arg0) {
+                long currentTime = Instant.now().getEpochSecond();
+                long startTime = visualiserInput.getRaceStatus().getExpectedStartTime();
+                timeLeft = startTime - currentTime;
+                System.out.println(timeLeft);
+
+                if (timeLeft <= 0 && controller != null) {
+                    updateTime("Race is starting...");
+                    stop();
+                    simulateRace();
+                } else {
+                    currentTimeInSeconds = (timeLeft*scaleFactor) / 1000;
+                    minutes = currentTimeInSeconds / 60;
+                    remainingSeconds = currentTimeInSeconds % 60;
+                    hours = minutes / 60;
+                    minutes = minutes % 60;
+                    if (controller != null) {
+                        updateTime(String.format("Race clock: -%02d:%02d:%02d", hours, minutes, remainingSeconds));
+                    }
+                }
+                currentTime = System.currentTimeMillis();
+            }
+        }.start();
+    }
+
 }