#include <stdlib.h>
#include <time.h>
+#ifdef WIN32
+#include <sys/time.h> /* for gettimeofday() */
+#include <unistd.h> /* for gettimeofday() */
+#endif
+
#include "fg_time.h"
-#include "../constants.h"
+#include "../Include/constants.h"
#include "../Flight/flight.h"
#include "../Time/fg_time.h"
struct fgTIME cur_time_params;
+struct fgLIGHT cur_light_params;
/* Initialize the time dependent variables */
void fgTimeInit(struct fgTIME *t) {
- t->lst_diff = -9999.0;
+ t->gst_diff = -9999.0;
}
x /= 3600.0;
gst = (1.0/SIDRATE)*hr + x;
+ printf("gst => %.4f\n", gst);
+
return(gst);
}
gst = utc_gst (mjd);
lst = gst - RADHR (lng);
lst -= 24.0*floor(lst/24.0);
- printf ("%7.4f\n", lst);
+ /* printf ("%7.4f\n", lst); */
/* that's all */
return (lst);
long int offset;
double diff, part, days, hours, lst;
+#ifdef WIN32
+ int daylight;
+ long int timezone;
+
+ struct timeval tv;
+ struct timezone tz;
+#endif
+
printf("COURSE: GMT = %d/%d/%2d %d:%02d:%02d\n",
gmt->tm_mon, gmt->tm_mday, gmt->tm_year,
gmt->tm_hour, gmt->tm_min, gmt->tm_sec);
start = mktime(&mt);
+#ifdef WIN32
+ daylight = mt.tm_isdst;
+ gettimeofday(&tv, &tz);
+ timezone = tz.tz_minuteswest * 60;
+#endif
+
+ if ( daylight > 0 ) {
+ daylight = 1;
+ } else if ( daylight < 0 ) {
+ printf("OOOPS, big time problem in fg_time.c, no daylight savings info.\n");
+ }
+
offset = -(timezone / 3600 - daylight);
printf("Raw time zone offset = %ld\n", timezone);
/* Update the time dependent variables */
-void fgTimeUpdate(struct FLIGHT *f, struct fgTIME *t) {
- double lst_precise, lst_course;
+void fgTimeUpdate(struct fgFLIGHT *f, struct fgTIME *t) {
+ double gst_precise, gst_course;
static long int warp = 0;
/* get current Unix calendar time (in seconds) */
- /* warp += 120; */
- warp = 0;
- t->cur_time = time(NULL);
+ /* warp = 60; */
+ warp += 0;
+ t->cur_time = time(NULL) + (0) * 60 * 60;
t->cur_time += warp;
printf("Current Unix calendar time = %ld warp = %ld\n", t->cur_time, warp);
printf("Current Longitude = %.3f\n", FG_Longitude * RAD_TO_DEG);
/* Calculate local side real time */
- if ( t->lst_diff < -100.0 ) {
+ if ( t->gst_diff < -100.0 ) {
/* first time through do the expensive calculation & cheap
calculation to get the difference. */
- printf("First time, doing precise lst\n");
- t->lst = lst_precise =
- sidereal_precise(t->mjd, -(FG_Longitude * RAD_TO_DEG));
- lst_course =
- sidereal_course(t->gmt, t->cur_time, -(FG_Longitude * RAD_TO_DEG));
- t->lst_diff = lst_precise - lst_course;
+ printf("First time, doing precise gst\n");
+ t->gst = gst_precise = sidereal_precise(t->mjd, 0.00);
+ gst_course = sidereal_course(t->gmt, t->cur_time, 0.00);
+ t->gst_diff = gst_precise - gst_course;
+
+ t->lst =
+ sidereal_course(t->gmt, t->cur_time, -(FG_Longitude * RAD_TO_DEG))
+ + t->gst_diff;
} else {
/* course + difference should drift off very slowly */
+ t->gst =
+ sidereal_course(t->gmt, t->cur_time, 0.00) + t->gst_diff;
t->lst =
sidereal_course(t->gmt, t->cur_time, -(FG_Longitude * RAD_TO_DEG))
- + t->lst_diff;
+ + t->gst_diff;
}
- printf("Current Sidereal Time = %.3f (%.3f) (diff = %.3f)\n", t->lst,
- sidereal_precise(t->mjd, -(FG_Longitude * RAD_TO_DEG)),
- t->lst_diff);
+ /* printf("Current lon=0.00 Sidereal Time = %.3f\n", t->gst); */
+ /* printf("Current LOCAL Sidereal Time = %.3f (%.3f) (diff = %.3f)\n",
+ t->lst, sidereal_precise(t->mjd, -(FG_Longitude * RAD_TO_DEG)),
+ t->gst_diff); */
}
/* $Log$
-/* Revision 1.5 1997/09/16 22:14:52 curt
-/* Tweaked time of day lighting equations. Don't draw stars during the day.
+/* Revision 1.20 1997/12/15 23:55:06 curt
+/* Add xgl wrappers for debugging.
+/* Generate terrain normals on the fly.
/*
+ * Revision 1.19 1997/12/15 20:59:10 curt
+ * Misc. tweaks.
+ *
+ * Revision 1.18 1997/12/12 21:41:31 curt
+ * More light/material property tweaking ... still a ways off.
+ *
+ * Revision 1.17 1997/12/12 19:53:04 curt
+ * Working on lightling and material properties.
+ *
+ * Revision 1.16 1997/12/11 04:43:57 curt
+ * Fixed sun vector and lighting problems. I thing the moon is now lit
+ * correctly.
+ *
+ * Revision 1.15 1997/12/10 22:37:54 curt
+ * Prepended "fg" on the name of all global structures that didn't have it yet.
+ * i.e. "struct WEATHER {}" became "struct fgWEATHER {}"
+ *
+ * Revision 1.14 1997/12/10 01:19:52 curt
+ * Tweaks for verion 0.15 release.
+ *
+ * Revision 1.13 1997/12/09 05:11:56 curt
+ * Working on tweaking lighting.
+ *
+ * Revision 1.12 1997/12/09 04:25:37 curt
+ * Working on adding a global lighting params structure.
+ *
+ * Revision 1.11 1997/11/25 19:25:40 curt
+ * Changes to integrate Durk's moon/sun code updates + clean up.
+ *
+ * Revision 1.10 1997/11/15 18:16:42 curt
+ * minor tweaks.
+ *
+ * Revision 1.9 1997/11/14 00:26:50 curt
+ * Transform scenery coordinates earlier in pipeline when scenery is being
+ * created, not when it is being loaded. Precalculate normals for each node
+ * as average of the normals of each containing polygon so Garoude shading is
+ * now supportable.
+ *
+ * Revision 1.8 1997/10/25 03:30:08 curt
+ * Misc. tweaks.
+ *
+ * Revision 1.7 1997/09/23 00:29:50 curt
+ * Tweaks to get things to compile with gcc-win32.
+ *
+ * Revision 1.6 1997/09/20 03:34:34 curt
+ * Still trying to get those durned stars aligned properly.
+ *
+ * Revision 1.5 1997/09/16 22:14:52 curt
+ * Tweaked time of day lighting equations. Don't draw stars during the day.
+ *
* Revision 1.4 1997/09/16 15:50:31 curt
* Working on star alignment and time issues.
*
projects / flightgear.git / blobdiff