mock:

Moved wind generation logic and state into the WindGenerator class.
MockRace initialises this, and calls it to update wind.

racevisionGame/src/main/java/shared/model/Race.java

@@ -255,6 +255,14 @@ public abstract class Race implements Runnable {
      */
     protected void setWind(Bearing windBearing, double windSpeedKnots) {
         Wind wind = new Wind(windBearing, windSpeedKnots);
+        setWind(wind);
+    }
+
+    /**
+     * Updates the race to have a specified wind (bearing and speed).
+     * @param wind New wind.
+     */
+    protected void setWind(Wind wind) {
         this.raceWind.setValue(wind);
     }