Renamed fg_random -> sg_random.

simgear/math/Makefile.am

@@ -10,24 +10,24 @@ lib_LIBRARIES = libsgmath.a
 
 include_HEADERS = \
 	fg_memory.h \
-	fg_random.h \
 	interpolater.hxx \
 	leastsqs.hxx \
 	localconsts.hxx \
 	point3d.hxx \
 	polar3d.hxx \
 	sg_geodesy.hxx \
+	sg_random.h \
 	sg_types.hxx \
 	vector.hxx
 
 EXTRA_DIST = linintp2.h linintp2.inl sphrintp.h sphrintp.inl
 
 libsgmath_a_SOURCES = \
-	fg_random.c \
 	interpolater.cxx \
 	leastsqs.cxx \
 	polar3d.cxx \
 	sg_geodesy.cxx \
+	sg_random.c \
 	vector.cxx
 
 INCLUDES += -I$(top_srcdir) $(ZLIB_INCL)

simgear/math/sg_random.c

@@ -1,4 +1,4 @@
-// fg_random.c -- routines to handle random number generation
+// sg_random.c -- routines to handle random number generation
 //
 // Written by Curtis Olson, started July 1997.
 //
@@ -30,7 +30,7 @@
 #include <stdlib.h>         // for random(), srandom()
 #include <time.h>           // for time() to seed srandom()        
 
-#include "fg_random.h"
+#include "sg_random.h"
 
 #ifndef HAVE_RAND
 #  ifdef sgi
@@ -49,7 +49,7 @@
 
 // Seed the random number generater with time() so we don't see the
 // same sequence every time
-void fg_srandom(void) {
+void sg_srandom(void) {
     // fgPrintf( FG_MATH, FG_INFO, "Seeding random number generater\n");
 
 #ifdef HAVE_RAND
@@ -61,7 +61,7 @@ void fg_srandom(void) {
 
 
 // return a random number between [0.0, 1.0)
-double fg_random(void) {
+double sg_random(void) {
 #ifdef HAVE_RAND
     return(rand() / (double)RAND_MAX);
 #else

simgear/math/sg_random.h

@@ -1,4 +1,4 @@
-// fg_random.h -- routines to handle random number generation
+// sg_random.h -- routines to handle random number generation
 //
 // Written by Curtis Olson, started July 1997.
 //
@@ -22,8 +22,8 @@
 // $Id$
 
 
-#ifndef _FG_RANDOM_H
+#ifndef _SG_RANDOM_H
-#define _FG_RANDOM_H
+#define _SG_RANDOM_H
 
 
 #ifdef __cplusplus                                                          
@@ -33,10 +33,10 @@ extern "C" {
 
 // Seed the random number generater with time() so we don't see the
 // same sequence every time
-void fg_srandom(void);
+void sg_srandom(void);
 
 // return a random number between [0.0, 1.0)
-double fg_random(void);
+double sg_random(void);
 
 
 #ifdef __cplusplus
@@ -44,6 +44,6 @@ double fg_random(void);
 #endif
 
 
-#endif // _FG_RANDOM_H
+#endif // _SG_RANDOM_H
 
 

simgear/sky/cloud.cxx

@@ -26,9 +26,9 @@
 #include <plib/sg.h>
 #include <plib/ssg.h>
 
-#include <simgear/math/fg_random.h>
 #include <simgear/math/point3d.hxx>
 #include <simgear/math/polar3d.hxx>
+#include <simgear/math/sg_random.h>
 
 #include "cloud.hxx"
 
@@ -70,7 +70,7 @@ void SGCloudLayer::build( double s, double asl, double thickness,
 
     sgSetVec3( vertex, -size, -size, 0.0f );
     sgVec2 base;
-    sgSetVec2( base, fg_random(), fg_random() );
+    sgSetVec2( base, sg_random(), sg_random() );
     sgSetVec2( tc, base[0], base[1] );
     cl->add( color );
     vl->add( vertex );

simgear/sky/dome.cxx

@@ -39,7 +39,6 @@
 #include <plib/sg.h>
 
 #include <simgear/debug/logstream.hxx>
-#include <simgear/math/fg_random.h>
 
 #include "dome.hxx"
 

simgear/sky/sky.cxx

@@ -30,7 +30,7 @@
 #include <plib/sg.h>
 #include <plib/ssg.h>
 
-#include <simgear/math/fg_random.h>
+#include <simgear/math/sg_random.h>
 
 #include "sky.hxx"
 
@@ -328,11 +328,11 @@ void SGSky::modify_vis( float alt, float time_factor ) {
 	if ( ratio < 1.0 ) {
 	    if ( ! in_puff ) {
 		// calc chance of entering cloud puff
-		double rnd = fg_random();
+		double rnd = sg_random();
 		double chance = rnd * rnd * rnd;
 		if ( chance > 0.95 /* * (diff - 25) / 50.0 */ ) {
 		    in_puff = true;
-		    puff_length = fg_random() * 2.0; // up to 2 seconds
+		    puff_length = sg_random() * 2.0; // up to 2 seconds
 		    puff_progression = 0.0;
 		}
 	    }