added automatic conversion of Map::Vertex into xyz_location

zone/map.h

@@ -22,6 +22,7 @@
 #ifndef ZONE_MAP_H
 #define ZONE_MAP_H
 
+#include "position.h"
 #include <stdio.h>
 #include <string>
 
@@ -40,6 +41,10 @@ public:
 		{
 			return((v.x == x) && (v.y == y) && (v.z == z));
 		}
+        operator xyz_location() const
+        {
+            return xyz_location(x,y,z);
+        }
 
 		float x;
 		float y;