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Fixing bug #172 - warp handling during pause.

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This commit is contained in:
James Turner 2010-11-21 23:43:41 +00:00
parent af5623879f
commit e0aef846e3
6 changed files with 110 additions and 88 deletions
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12
src/Main/fg_commands.cxx
View file

@ -697,8 +697,6 @@ do_timeofday (const SGPropertyNode * arg)
= fgGetNode("/position/longitude-deg");
static const SGPropertyNode *latitude
= fgGetNode("/position/latitude-deg");
static const SGPropertyNode *cur_time_override
= fgGetNode("/sim/time/cur-time-override", true);
int orig_warp = globals->get_warp();
SGTime *t = globals->get_time_params();
@ -759,14 +757,10 @@ do_timeofday (const SGPropertyNode * arg)
* SGD_DEGREES_TO_RADIANS,
180.0, false );
}
// cout << "warp = " << warp << endl;
globals->set_warp( orig_warp + warp );
t->update( longitude->getDoubleValue() * SGD_DEGREES_TO_RADIANS,
latitude->getDoubleValue() * SGD_DEGREES_TO_RADIANS,
cur_time_override->getLongValue(),
globals->get_warp() );
fgSetInt("/sim/time/warp", orig_warp + warp);
return true;
}

57
src/Main/fg_props.cxx
View file

@ -256,7 +256,14 @@ static const char *
getDateString ()
{
static char buf[64]; // FIXME
struct tm * t = globals->get_time_params()->getGmt();
SGTime * st = globals->get_time_params();
if (!st) {
buf[0] = 0;
return buf;
}
struct tm * t = st->getGmt();
sprintf(buf, "%.4d-%.2d-%.2dT%.2d:%.2d:%.2d",
t->tm_year + 1900, t->tm_mon + 1, t->tm_mday,
t->tm_hour, t->tm_min, t->tm_sec);
@ -270,9 +277,6 @@ getDateString ()
static void
setDateString (const char * date_string)
{
static const SGPropertyNode *cur_time_override
= fgGetNode("/sim/time/cur-time-override", true);
SGTime * st = globals->get_time_params();
struct tm * current_time = st->getGmt();
struct tm new_time;
@ -298,16 +302,13 @@ setDateString (const char * date_string)
// values, one way or another.
new_time.tm_year -= 1900;
new_time.tm_mon -= 1;
// Now, tell flight gear to use
// the new time. This was far
// too difficult, by the way.
long int warp =
mktime(&new_time) - mktime(current_time) + globals->get_warp();
double lon = fgGetDouble("/position/longitude-deg") * SG_DEGREES_TO_RADIANS;
double lat = fgGetDouble("/position/latitude-deg") * SG_DEGREES_TO_RADIANS;
globals->set_warp(warp);
st->update(lon, lat, cur_time_override->getLongValue(), warp);
fgSetInt("/sim/time/warp", warp);
}
/**
@ -317,7 +318,13 @@ static const char *
getGMTString ()
{
static char buf[16];
struct tm *t = globals->get_time_params()->getGmt();
SGTime * st = globals->get_time_params();
if (!st) {
buf[0] = 0;
return buf;
}
struct tm *t = st->getGmt();
snprintf(buf, 16, "%.2d:%.2d:%.2d",
t->tm_hour, t->tm_min, t->tm_sec);
return buf;
@ -367,30 +374,6 @@ getTrackMag ()
return magtrack;
}
static long
getWarp ()
{
return globals->get_warp();
}
static void
setWarp (long warp)
{
globals->set_warp(warp);
}
static long
getWarpDelta ()
{
return globals->get_warp_delta();
}
static void
setWarpDelta (long delta)
{
globals->set_warp_delta(delta);
}
static bool
getWindingCCW ()
{
@ -515,9 +498,6 @@ FGProperties::bind ()
fgTie("/environment/magnetic-variation-deg", getMagVar);
fgTie("/environment/magnetic-dip-deg", getMagDip);
fgTie("/sim/time/warp", getWarp, setWarp, false);
fgTie("/sim/time/warp-delta", getWarpDelta, setWarpDelta);
// Misc. Temporary junk.
fgTie("/sim/temp/winding-ccw", getWindingCCW, setWindingCCW, false);
}
@ -545,9 +525,6 @@ FGProperties::unbind ()
fgUntie("/environment/magnetic-variation-deg");
fgUntie("/environment/magnetic-dip-deg");
fgUntie("/sim/time/warp");
fgUntie("/sim/time/warp-delta");
// Misc. Temporary junk.
fgUntie("/sim/temp/winding-ccw");
fgUntie("/sim/temp/full-screen");

22
src/Main/globals.cxx
View file

@ -122,8 +122,6 @@ FGGlobals::FGGlobals() :
soundmgr( new SGSoundMgr ),
sim_time_sec( 0.0 ),
fg_root( "" ),
warp( 0 ),
warp_delta( 0 ),
time_params( NULL ),
ephem( NULL ),
mag( NULL ),
@ -401,4 +399,24 @@ FGGlobals::get_current_view () const
return viewmgr->get_current_view();
}
long int FGGlobals::get_warp() const
{
return fgGetInt("/sim/time/warp");
}
void FGGlobals::set_warp( long int w )
{
fgSetInt("/sim/time/warp", w);
}
long int FGGlobals::get_warp_delta() const
{
return fgGetInt("/sim/time/warp-delta");
}
void FGGlobals::set_warp_delta( long int d )
{
fgSetInt("/sim/time/warp-delta", d);
}
// end of globals.cxx

18
src/Main/globals.hxx
View file

@ -104,14 +104,6 @@ private:
std::string browser;
// An offset in seconds from the true time. Allows us to adjust
// the effective time of day.
long int warp;
// How much to change the value of warp each iteration. Allows us
// to make time progress faster than normal (or even run in reverse.)
long int warp_delta;
// Time structure
SGTime *time_params;
@ -227,13 +219,11 @@ public:
inline const std::string &get_browser () const { return browser; }
void set_browser (const std::string &b) { browser = b; }
inline long int get_warp() const { return warp; }
inline void set_warp( long int w ) { warp = w; }
inline void inc_warp( long int w ) { warp += w; }
long int get_warp() const;
void set_warp( long int w );
inline long int get_warp_delta() const { return warp_delta; }
inline void set_warp_delta( long int d ) { warp_delta = d; }
inline void inc_warp_delta( long int d ) { warp_delta += d; }
long int get_warp_delta() const;
void set_warp_delta( long int d );
inline SGTime *get_time_params() const { return time_params; }
inline void set_time_params( SGTime *t ) { time_params = t; }

77
src/Time/TimeManager.cxx
View file

@ -58,10 +58,15 @@ void TimeManager::init()
_firstUpdate = true;
_inited = true;
_dtRemainder = 0.0;
_adjustWarpOnUnfreeze = false;
_maxDtPerFrame = fgGetNode("/sim/max-simtime-per-frame", true);
_clockFreeze = fgGetNode("/sim/freeze/clock", true);
_timeOverride = fgGetNode("/sim/time/cur-time-override", true);
_warp = fgGetNode("/sim/time/warp", true);
_warp->addChangeListener(this);
_warpDelta = fgGetNode("/sim/time/warp-delta", true);
_longitudeDeg = fgGetNode("/position/longitude-deg", true);
_latitudeDeg = fgGetNode("/position/latitude-deg", true);
@ -70,16 +75,17 @@ void TimeManager::init()
zone.append("Timezone");
double lon = _longitudeDeg->getDoubleValue() * SG_DEGREES_TO_RADIANS;
double lat = _latitudeDeg->getDoubleValue() * SG_DEGREES_TO_RADIANS;
_impl = new SGTime(lon, lat, zone.str(), _timeOverride->getLongValue());
globals->set_warp_delta(0);
_warpDelta->setIntValue(0);
globals->get_event_mgr()->addTask("updateLocalTime", this,
&TimeManager::updateLocalTime, 30*60 );
updateLocalTime();
_impl->update(lon, lat, _timeOverride->getLongValue(),
globals->get_warp());
_warp->getIntValue());
globals->set_time_params(_impl);
// frame/update-rate counters
@ -95,14 +101,38 @@ void TimeManager::postinit()
void TimeManager::reinit()
{
shutdown();
init();
postinit();
}
void TimeManager::shutdown()
{
_warp->removeChangeListener(this);
globals->set_time_params(NULL);
delete _impl;
_impl = NULL;
_inited = false;
globals->get_event_mgr()->removeTask("updateLocalTime");
init();
postinit();
}
void TimeManager::valueChanged(SGPropertyNode* aProp)
{
if (aProp == _warp) {
if (_clockFreeze->getBoolValue()) {
// if the warp is changed manually while frozen, don't modify it when
// un-freezing - the user wants to unfreeze with exactly the warp
// they specified.
_adjustWarpOnUnfreeze = false;
}
double lon = _longitudeDeg->getDoubleValue() * SG_DEGREES_TO_RADIANS;
double lat = _latitudeDeg->getDoubleValue() * SG_DEGREES_TO_RADIANS;
_impl->update(lon, lat,
_timeOverride->getLongValue(),
_warp->getIntValue());
}
}
void TimeManager::computeTimeDeltas(double& simDt, double& realDt)
@ -177,25 +207,32 @@ void TimeManager::computeTimeDeltas(double& simDt, double& realDt)
void TimeManager::update(double dt)
{
bool freeze = _clockFreeze->getBoolValue();
time_t now = time(NULL);
if (freeze) {
// clock freeze requested
if (_timeOverride->getLongValue() == 0) {
fgSetLong( "/sim/time/cur-time-override", _impl->get_cur_time());
globals->set_warp(0);
_timeOverride->setLongValue(now);
_adjustWarpOnUnfreeze = true;
}
} else {
// no clock freeze requested
if (_lastClockFreeze) {
// clock just unfroze, let's set warp as the difference
// between frozen time and current time so we don't get a
// time jump (and corresponding sky object and lighting
// jump.)
globals->set_warp(_timeOverride->getLongValue() - time(NULL));
fgSetLong( "/sim/time/cur-time-override", 0 );
if (_adjustWarpOnUnfreeze) {
// clock just unfroze, let's set warp as the difference
// between frozen time and current time so we don't get a
// time jump (and corresponding sky object and lighting
// jump.)
int adjust = _timeOverride->getLongValue() - now;
SG_LOG(SG_GENERAL, SG_INFO, "adjusting on un-freeze:" << adjust);
_warp->setIntValue(_warp->getIntValue() + adjust);
}
_timeOverride->setLongValue(0);
}
if ( globals->get_warp_delta() != 0 ) {
globals->inc_warp( globals->get_warp_delta() );
int warpDelta = _warpDelta->getIntValue();
if (warpDelta != 0) {
_warp->setIntValue(_warp->getIntValue() + warpDelta);
}
}
@ -204,7 +241,7 @@ void TimeManager::update(double dt)
double lat = _latitudeDeg->getDoubleValue() * SG_DEGREES_TO_RADIANS;
_impl->update(lon, lat,
_timeOverride->getLongValue(),
globals->get_warp());
_warp->getIntValue());
computeFrameRate();
}
@ -304,7 +341,7 @@ void TimeManager::updateLocalTime()
void TimeManager::initTimeOffset()
{
// Handle potential user specified time offsets
int orig_warp = globals->get_warp();
int orig_warp = _warp->getIntValue();
time_t cur_time = _impl->get_cur_time();
time_t currGMT = sgTimeGetGMT( gmtime(&cur_time) );
time_t systemLocalTime = sgTimeGetGMT( localtime(&cur_time) );
@ -355,10 +392,8 @@ void TimeManager::initTimeOffset()
warp = 0;
}
globals->set_warp( orig_warp + warp );
_impl->update(lon, lat, _timeOverride->getLongValue(),
globals->get_warp() );
_warp->setIntValue( orig_warp + warp );
SG_LOG( SG_GENERAL, SG_INFO, "After fgInitTimeOffset(): warp = "
<< globals->get_warp() );
<< _warp->getIntValue() );
}

12
src/Time/TimeManager.hxx
View file

@ -26,7 +26,7 @@
// forward decls
class SGTime;
class TimeManager : public SGSubsystem
class TimeManager : public SGSubsystem, public SGPropertyChangeListener
{
public:
TimeManager();
@ -36,10 +36,14 @@ public:
virtual void init();
virtual void reinit();
virtual void postinit();
virtual void shutdown();
void update(double dt);
// SGPropertyChangeListener overrides
virtual void valueChanged(SGPropertyNode *);
private:
/**
* Ensure a consistent update-rate using a combination of
* sleep()-ing and busy-waiting.
@ -64,8 +68,12 @@ private:
SGPropertyNode_ptr _maxDtPerFrame;
SGPropertyNode_ptr _clockFreeze;
SGPropertyNode_ptr _timeOverride;
SGPropertyNode_ptr _warp;
SGPropertyNode_ptr _warpDelta;
bool _lastClockFreeze;
bool _adjustWarpOnUnfreeze;
SGPropertyNode_ptr _longitudeDeg;
SGPropertyNode_ptr _latitudeDeg;