WorldAltitude for seafloor set

src/engine/gameManager/ZoneManager.java

@@ -474,6 +474,11 @@ public enum ZoneManager {
 
         worldAlttitude += zone.yOffset;
 
+        // Player cities have platform
+
+        if (zone.guild_zone)
+            worldAlttitude += 5;
+
         return worldAlttitude;
     }