abs is up the chain a step

src/engine/InterestManagement/Terrain.java

@@ -178,8 +178,8 @@ public class Terrain {
 
         // Normalize terrain offset
 
-        Vector2f normalizedLoc = new Vector2f(zone_offset.x / this.terrain_size.x,
-                zone_offset.y / terrain_size.y);
+        Vector2f normalizedLoc = new Vector2f(Math.abs(zone_offset.x) / this.terrain_size.x,
+                Math.abs(zone_offset.y) / terrain_size.y);
 
         float xval;