(svn r4153) -Codechange. Changed NPF_TILE_LENGTH into an enum and moved it out of variables.h. Just a drop in the bucket, but it is a start

npf.h

@@ -8,7 +8,6 @@
 #include "station.h"
 #include "vehicle.h"
 #include "tile.h"
-#include "variables.h"
 
 //mowing grass
 enum {
@@ -19,6 +18,12 @@ enum {
 	NPF_HASH_HALFMASK = (1 << NPF_HASH_HALFBITS) - 1
 };
 
+/* For new pathfinding. Define here so it is globally available without having
+ * to include npf.h */
+enum {
+	NPF_TILE_LENGTH = 100
+};
+
 enum {
 	/** This penalty is the equivalent of "inifite", which means that paths that
 	 * get this penalty will be chosen, but only if there is no other route