Add y offset to zone altitude.

src/engine/gameManager/ZoneManager.java

@@ -459,16 +459,14 @@ public enum ZoneManager {
 
         float worldAlttitude = MBServerStatics.SEA_FLOOR_ALTITUDE;
 
-
         // Seafloor
 
-        if (zone.getParent() == null) {
+        if (zone.getParent() == null)
             return worldAlttitude;
-        }
 
         Zone parentZone = zone.getParent();
 
-        // Child of seafloor
+        // Children of seafloor
 
         if (parentZone.getParent() == null)
             return worldAlttitude + zone.getYCoord();