// util.hxx - general-purpose utility functions.
-// Copyright (C) 2002 Curtis L. Olson - curt@me.umn.edu
+// Copyright (C) 2002 Curtis L. Olson - http://www.flightgear.org/~curt
//
// This program is free software; you can redistribute it and/or
// modify it under the terms of the GNU General Public License as
#endif
+/**
+ * Initialize a single value through all existing weather levels.
+ *
+ * This function is useful mainly from the command-line.
+ *
+ * @param propname The name of the subproperty to initialized.
+ * @param value The initial value.
+ */
+extern void fgDefaultWeatherValue (const char * propname, double value);
+
+
+/**
+ * Set up a plausible wind layout, boundary and aloft,
+ * based on just a few parameters.
+ *
+ * @param min_hdg Minimal wind heading
+ * @param max_hdg Maximal wind heading
+ * @param speed Windspeed in knots
+ * @param gust Wind gust variation in knots
+ */
+extern void fgSetupWind (double min_hdg, double max_hdg,
+ double speed, double gust);
+
+/**
+ * Clean up and exit FlightGear.
+ *
+ * This function makes sure that network connections and I/O streams
+ * are cleaned up.
+ *
+ * @param status The exit status to pass to the operating system.
+ */
+extern void fgExit (int status = 0);
+
+
/**
* Move a value towards a target.
*