diff -r db4007baa0ab -r f106b4538f41 engine.h
--- a/engine.h	Fri Feb 10 06:33:56 2006 +0000
+++ b/engine.h	Sat Feb 11 07:34:05 2006 +0000
@@ -40,6 +40,7 @@
 	byte running_cost;
 	byte sfx;
 	byte refittable;
+	byte callbackmask;
 } ShipVehicleInfo;
 
 typedef struct AircraftVehicleInfo {
@@ -52,6 +53,7 @@
 	byte max_speed;
 	byte mail_capacity;
 	uint16 passenger_capacity;
+	byte callbackmask;
 } AircraftVehicleInfo;
 
 typedef struct RoadVehicleInfo {
@@ -62,6 +64,7 @@
 	byte max_speed;
 	byte capacity;
 	byte cargo_type;
+	byte callbackmask;
 } RoadVehicleInfo;
 
 /** Information about a vehicle