Terrain zone set in constructor

src/engine/InterestManagement/Terrain.java

@@ -31,15 +31,17 @@ public class Terrain {
 
     public Terrain(Zone zone) {
 
-        this.heightmap = zone.terrain_image;
+        this.zone = zone;
+
+        this.heightmap = this.zone.terrain_image;
 
         // Configure PLANAR
 
-        if (zone.terrain_type.equals("PLANAR"))
+        if (this.zone.terrain_type.equals("PLANAR"))
             this.heightmap = 1006300;
 
-        this.terrain_size.x = zone.major_radius;
+        this.terrain_size.x = this.zone.major_radius;
-        this.terrain_size.y = zone.minor_radius;
+        this.terrain_size.y = this.zone.minor_radius;
 
         this.terrain_pixel_data = Terrain._heightmap_pixel_cache.get(heightmap);
 
@@ -52,7 +54,7 @@ public class Terrain {
         this.cell_size.x = terrain_size.x / this.cell_count.x;
         this.cell_size.y = terrain_size.y / this.cell_count.y;
 
-        this.terrain_scale = zone.terrain_max_y / 255f;
+        this.terrain_scale = this.zone.terrain_max_y / 255f;
 
     }