(svn r1964) - Add: [NPF] Added a penalty

variables.h

@@ -196,6 +196,7 @@ typedef struct Patches {
 	uint32 npf_rail_lastred_penalty; /* The penalty for when the last signal is red */
 	uint32 npf_rail_station_penalty; /* The penalty for station tiles */
 	uint32 npf_rail_slope_penalty; /* The penalty for sloping upwards */
+	uint32 npf_rail_curve_penalty; /* The penalty for curves */
 
 	bool population_in_label; // Show the population of a town in his label?
 } Patches;