Ignore generated binaries.

[simgear.git] / simgear / math / sg_random.h

diff --git a/simgear/math/sg_random.h b/simgear/math/sg_random.h
index 3c41071e71babe6a33b2692f67e6a8334b5e53e2..6d993296106706da6653101aa1e7357c33ad732b 100644 (file)
--- a/simgear/math/sg_random.h
+++ b/simgear/math/sg_random.h
@@ -1,8 +1,11 @@
-// sg_random.h -- routines to handle random number generation
-//
+/**
+ * \file sg_random.h
+ * Routines to handle random number generation and hide platform differences.
+ */
+
 // Written by Curtis Olson, started July 1997.
 //
-// Copyright (C) 1997  Curtis L. Olson  - curt@infoplane.com
+// Copyright (C) 1997  Curtis L. Olson  - http://www.flightgear.org/~curt
 //
 // This library is free software; you can redistribute it and/or
 // modify it under the terms of the GNU Library General Public
@@ -31,12 +34,31 @@ extern "C" {
 #endif                                   
 
 
-// Seed the random number generater with time() so we don't see the
-// same sequence every time
-void sg_srandom(void);
+/**
+ * Seed the random number generater with time() so we don't see the
+ * same sequence every time.
+ */
+void sg_srandom_time();
+
+/**
+ * Seed the random number generater with time() in 10 minute intervals
+ * so we get the same sequence within 10 minutes interval.
+ * This is useful for synchronizing two display systems.
+ */
+void sg_srandom_time_10();
+
+/**
+ * Seed the random number generater with your own seed so can set up
+ * repeatable randomization.
+ * @param seed random number generator seed
+ */
+void sg_srandom( unsigned int seed );
 
-// return a random number between [0.0, 1.0)
-double sg_random(void);
+/**
+ * Return a random number between [0.0, 1.0)
+ * @return next "random" number in the "random" sequence
+ */
+double sg_random();
 
 
 #ifdef __cplusplus