--- a/src/vehicle_base.h	Sun Feb 03 01:34:21 2008 +0000
+++ b/src/vehicle_base.h	Sun Feb 03 20:34:26 2008 +0000
@@ -428,6 +428,11 @@
 	virtual void Tick() {};
 
 	/**
+	 * Calls the new day handler of the vehicle
+	 */
+	virtual void OnNewDay() {};
+
+	/**
 	 * Gets the running cost of a vehicle  that can be sent into SetDParam for string processing.
 	 * @return the vehicle's running cost
 	 */
@@ -458,6 +463,13 @@
 	 * @return the first vehicle of the chain.
 	 */
 	inline Vehicle *First() const { return this->first; }
+
+	/**
+	 * Check if we share our orders with another vehicle.
+	 * This is done by checking the previous and next pointers in the shared chain.
+	 * @return true if there are other vehicles sharing the same order
+	 */
+	inline bool IsOrderListShared() const { return this->next_shared != NULL || this->prev_shared != NULL; };
 };
 
 /**