Terrain size set by zone radius

src/engine/InterestManagement/Terrain.java

@@ -40,8 +40,8 @@ public class Terrain {
         if (this.zone.terrain_type.equals("PLANAR"))
             this.heightmap = 1006300;
 
-        this.terrain_size.x = this.zone.major_radius;
+        this.terrain_size.x = this.zone.major_radius * 2;
-        this.terrain_size.y = this.zone.minor_radius;
+        this.terrain_size.y = this.zone.minor_radius * 2;
 
         this.terrain_pixel_data = Terrain._heightmap_pixel_cache.get(heightmap);