(svn r1554) -Fix: [ 1103187 ] Order Check messages are now validated before

displayed, so that there are no stray error messages any more.
-Feature/Fix: Order Checking is only execute for ONE vehicle in an
order-share system

order.h

@@ -33,6 +33,12 @@ enum {
 	CO_UNSHARE = 2
 };
 
+/* Modes for the order checker */
+enum {
+	OC_INIT     = 0, //the order checker can initialize a news message
+	OC_VALIDATE = 1, //the order checker validates a news message
+};
+
 /* If you change this, keep in mind that it is saved on 3 places:
     - Load_ORDR, all the global orders
     - Vehicle -> current_order
@@ -112,7 +118,7 @@ void RestoreVehicleOrders(Vehicle *v, BackuppedOrders *order);
 void DeleteDestinationFromVehicleOrder(Order dest);
 void InvalidateVehicleOrder(const Vehicle *v);
 bool VehicleHasDepotOrders(const Vehicle *v);
-bool CheckOrders(const Vehicle *v);
+bool CheckOrders(uint data_a, uint data_b);
 void DeleteVehicleOrders(Vehicle *v);
 bool IsOrderListShared(const Vehicle *v);
 void AssignOrder(Order *order, Order data);