# include <sys/time.h> // for get/setitimer, gettimeofday, struct timeval
#endif
+#ifdef WIN32
+# include <windows.h>
+# ifdef __CYGWIN32__
+# define NEAR /* */
+# define FAR /* */
+# endif
+# include <mmsystem.h>
+#endif
+
+#include <Astro/sky.hxx>
+#include <Astro/solarsystem.hxx>
#include <Debug/fg_debug.h>
-#include <Flight/flight.h>
+#include <Flight/flight.hxx>
#include <Include/fg_constants.h>
#include <Main/options.hxx>
+#include <Time/light.hxx>
#include "fg_time.hxx"
fgTIME cur_time_params;
-// Initialize the time dependent variables
+// Force an update of the sky and lighting parameters
+static void local_update_sky_and_lighting_params( void ) {
+ // fgSunInit();
+ SolarSystem::theSolarSystem->rebuild();
+ cur_light_params.Update();
+ fgSkyColorsInit();
+}
+
+// Initialize the time dependent variables
void fgTimeInit(fgTIME *t) {
fgPrintf( FG_EVENT, FG_INFO, "Initializing Time\n");
t->warp = current_options.get_time_offset();
t->warp_delta = 0;
+
+ t->pause = current_options.get_pause();
}
// Portability wrap to get current time.
void timestamp(fg_timestamp *timestamp) {
-#if defined( HAVE_GETTIMEOFDAY )
+#if defined( WIN32 )
+ unsigned int t;
+ t = timeGetTime();
+ timestamp->seconds = 0;
+ timestamp->millis = t;
+#elif defined( HAVE_GETTIMEOFDAY )
struct timeval current;
struct timezone tz;
// fg_timestamp currtime;
// Return duration in millis from first to last
long timediff(fg_timestamp *first, fg_timestamp *last) {
- return 1000 * (last->seconds - first->seconds) +
- (last->millis - first->millis);
+#if defined( WIN32 )
+ return (last->millis - first->millis);
+#else
+ return ( 1000 * (last->seconds - first->seconds) +
+ (last->millis - first->millis) );
+#endif
}
// Return new timestamp given a time stamp and an interval to add in
void timesum(fg_timestamp *res, fg_timestamp *start, long millis) {
+#ifdef WIN32
+ res->seconds = 0;
+ res->millis = ( start->millis + millis );
+#else
res->seconds = start->seconds +
( start->millis + millis ) / 1000;
res->millis = ( start->millis + millis ) % 1000;
+#endif
}
}
-// given an mjd, return greenwich mean siderial time, gst
+// given an mjd, return greenwich mean sidereal time, gst
double utc_gst (double mjd) {
double gst;
// return a courser but cheaper estimate of sidereal time
-double sidereal_course(struct tm *gmt, time_t now, double lng) {
- time_t start_gmt;
+double sidereal_course(fgTIME *t, double lng) {
+ struct tm *gmt;
+ time_t start_gmt, now;
double diff, part, days, hours, lst;
+ gmt = t->gmt;
+ now = t->cur_time;
start_gmt = get_start_gmt(gmt->tm_year);
fgPrintf(FG_EVENT, FG_DEBUG,
" Current Unix calendar time = %ld warp = %ld delta = %ld\n",
t->cur_time, t->warp, t->warp_delta);
+ if ( t->warp_delta ) {
+ // time is changing so force an update
+ local_update_sky_and_lighting_params();
+ }
+
// get GMT break down for current time
t->gmt = gmtime(&t->cur_time);
fgPrintf( FG_EVENT, FG_BULK,
// calculation to get the difference.
fgPrintf( FG_EVENT, FG_INFO, " 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);
+ gst_course = sidereal_course(t, 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;
+ t->lst = sidereal_course(t, -(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->gst_diff;
+ t->gst = sidereal_course(t, 0.00) + t->gst_diff;
+ t->lst = sidereal_course(t, -(FG_Longitude * RAD_TO_DEG)) + t->gst_diff;
}
fgPrintf( FG_EVENT, FG_DEBUG,
" Current lon=0.00 Sidereal Time = %.3f\n", t->gst);
// $Log$
+// Revision 1.19 1998/10/17 01:34:29 curt
+// C++ ifying ...
+//
+// Revision 1.18 1998/10/02 21:36:09 curt
+// Fixes to try to break through the win95/98 18.3 fps barrier.
+//
+// Revision 1.17 1998/09/15 04:27:49 curt
+// Changes for new astro code.
+//
+// Revision 1.16 1998/08/29 13:11:32 curt
+// Bernie Bright writes:
+// I've created some new classes to enable pointers-to-functions and
+// pointers-to-class-methods to be treated like objects. These objects
+// can be registered with fgEVENT_MGR.
+//
+// File "Include/fg_callback.hxx" contains the callback class defns.
+//
+// Modified fgEVENT and fgEVENT_MGR to use the callback classes. Also
+// some minor tweaks to STL usage.
+//
+// Added file "Include/fg_stl_config.h" to deal with STL portability
+// issues. I've added an initial config for egcs (and probably gcc-2.8.x).
+// I don't have access to Visual C++ so I've left that for someone else.
+// This file is influenced by the stl_config.h file delivered with egcs.
+//
+// Added "Include/auto_ptr.hxx" which contains an implementation of the
+// STL auto_ptr class which is not provided in all STL implementations
+// and is needed to use the callback classes.
+//
+// Deleted fgLightUpdate() which was just a wrapper to call
+// fgLIGHT::Update().
+//
+// Modified fg_init.cxx to register two method callbacks in place of the
+// old wrapper functions.
+//
+// Revision 1.15 1998/08/24 20:12:16 curt
+// Rewrote sidereal_course with simpler parameters.
+//
+// Revision 1.14 1998/08/05 00:20:07 curt
+// Added a local routine to update lighting params every frame when time is
+// accelerated.
+//
+// Revision 1.13 1998/07/30 23:48:55 curt
+// Sgi build tweaks.
+// Pause support.
+//
+// Revision 1.12 1998/07/27 18:42:22 curt
+// Added a pause option.
+//
// Revision 1.11 1998/07/22 21:45:37 curt
// fg_time.cxx: Removed call to ctime() in a printf() which should be harmless
// but seems to be triggering a bug.
projects / flightgear.git / blobdiff