Start terrain refactor

src/engine/objects/Building.java

@@ -11,8 +11,8 @@ package engine.objects;
 
 import engine.Enum;
 import engine.Enum.*;
-import engine.InterestManagement.HeightMap;
 import engine.InterestManagement.RealmMap;
+import engine.InterestManagement.Terrain;
 import engine.InterestManagement.WorldGrid;
 import engine.db.archive.CityRecord;
 import engine.db.archive.DataWarehouse;
@@ -206,7 +206,7 @@ public class Building extends AbstractWorldObject {
                     // Altitude of this building is derived from the heightmap engine.
 
                     Vector3fImmutable tempLoc = new Vector3fImmutable(this.statLat + this.parentZone.absX, 0, this.statLon + this.parentZone.absZ);
-                    tempLoc = new Vector3fImmutable(tempLoc.x, HeightMap.getWorldHeight(tempLoc), tempLoc.z);
+                    tempLoc = new Vector3fImmutable(tempLoc.x, Terrain.getWorldHeight(tempLoc), tempLoc.z);
                     this.setLoc(tempLoc);
                 }
             }