SourceIdAllocator now allocates from the BoatDataSource and RaceDataSource exposed by MockRace, instead of having its own source IDs. Can only allocate ids during PRESTART period.

RaceLogic now calls MockRace.initialiseBoats() after the prestart period has finished.
MockRace create a VisualiserBoat when a source ID is allocated.
MockOutput now sends updated XML messages during the race, instead of only at the start.
#story[1188]

racevisionGame/src/main/java/mock/model/RaceLogic.java

@@ -48,6 +48,9 @@ public class RaceLogic implements RunnableWithFramePeriod, Observer {
      */
     @Override
     public void run() {
+
+        prestartCountdown();
+
         race.initialiseBoats();
 
         countdown();
@@ -60,6 +63,35 @@ public class RaceLogic implements RunnableWithFramePeriod, Observer {
     }
 
 
+    /**
+     * The countdown timer until the prestart period is finished. This timer will stop 3 minutes before the race starts, and players can no longer start participating.
+     */
+    private void prestartCountdown() {
+
+        long previousFrameTime = System.currentTimeMillis();
+
+        while (((race.getRaceStatusEnum() == RaceStatusEnum.PRESTART)
+                || (race.getRaceStatusEnum() == RaceStatusEnum.NOT_ACTIVE)) && loopBool) {
+
+            long currentTime = System.currentTimeMillis();
+
+            //Update race time.
+            race.updateRaceTime(currentTime);
+
+            //Update the race status based on the current time.
+            race.updateRaceStatusEnum();
+
+            //Provide boat's with an estimated time at next mark until the race starts.
+            race.setBoatsTimeNextMark(race.getRaceClock().getCurrentTime());
+
+            //Parse the race snapshot.
+            server.parseSnapshot();
+
+            waitForFramePeriod(previousFrameTime, currentTime, 50);
+            previousFrameTime = currentTime;
+        }
+    }
+
     /**
      * Countdown timer until race starts.
      */