Created Boat bumper logic. Refactored logic for powering up / dpwn

YachtEventType: Added some new events, a generic power down event and a bumper_crash event for an affected boat
GameState: Implemented boat bumper logic
MessageFactory: Made new messages for powerdown and status effect
ClientYacht: Had to create another powerDown functional interface to inform the race view controller when to turn off the icon
RaceViewController/GameClient: Now waits for a message about powering down before turning off rather than waiting time client side

#story[1293]

src/main/java/seng302/gameServer/MessageFactory.java

@@ -137,6 +137,14 @@ public class MessageFactory {
         return new YachtEventCodeMessage(serverYacht.getSourceId(), YachtEventType.COLLISION);
     }
 
+
+    /**
+     * Constructs a message to be sent out whenever a yacht picks up a boost
+     *
+     * @param serverYacht The yacht that has picked up a power up
+     * @param token The token which they picked up
+     * @return The corresponding YachtEventCodeMessage
+     */
     public static YachtEventCodeMessage makePickupMessage(ServerYacht serverYacht, Token token) {
         YachtEventType yachtEventType = null;
         switch (token.getTokenType()) {
@@ -159,6 +167,37 @@ public class MessageFactory {
         return new YachtEventCodeMessage(serverYacht.getSourceId(), yachtEventType);
     }
 
+    /**
+     * Constructs a message representing a certain buff / debuff for a given yacht. For now this is
+     * just for the bumper debuff so the affected boat is aware that it has been crashed. This could
+     * however be extended to render affects for all boats given a certain debuff.
+     *
+     * @param yacht The yacht affected by some status
+     * @param token The token indicating what status they have
+     * @return A YachtEventCodeMessage
+     */
+    public static YachtEventCodeMessage makeStatusEffectMessage(ServerYacht yacht,
+        TokenType token) {
+        YachtEventType yachtEventType = null;
+        switch (token) {
+            case BUMPER:
+                yachtEventType = YachtEventType.BUMPER_CRASH;
+                break;
+        }
+        return new YachtEventCodeMessage(yacht.getSourceId(), yachtEventType);
+    }
+
+
+    /**
+     * Constructs a message to be sent out when a given yacht powers down (From a boost of any type)
+     *
+     * @param yacht The yacht that is powering down
+     * @return A YachtEventCodeMessage representing this action
+     */
+    public static YachtEventCodeMessage makePowerDownMessage(ServerYacht yacht) {
+        return new YachtEventCodeMessage(yacht.getSourceId(), YachtEventType.POWER_DOWN);
+    }
+
     public static ChatterMessage makeChatterMessage(Integer messageType, String message) {
         return new ChatterMessage(messageType, "SERVER: " + message);
     }