1 files changed, 11 insertions, 0 deletions
diff --git a/src/vehicle.h b/src/vehicle.h
index dd9ca71ba..1b2be2eb1 100644
--- a/src/vehicle.h
+++ b/src/vehicle.h
@@ -365,6 +365,17 @@ struct Vehicle {
 	 * @param direction the direction the vehicle is facing
 	 */
 	virtual void UpdateDeltaXY(Direction direction) {}
+
+	/**
+	 * Sets the expense type associated to this vehicle type
+	 * @param income whether this is income or (running) expenses of the vehicle
+	 */
+	virtual ExpensesType GetExpenseType(bool income) { return EXPENSES_OTHER; }
+
+	/**
+	 * Invalidates the vehicle list window of this type of vehicle
+	 */
+	virtual WindowClass GetVehicleListWindowClass() { return WC_NONE; }
 };
 
 /**