-// fg_props.cxx -- support for
+// fg_props.cxx -- support for FlightGear properties.
//
-// Written by David Megginson, started November 1999.
+// Written by David Megginson, started 2000.
//
-// Copyright (C) 1999, 2000 David Megginson - david@megginson.com
+// Copyright (C) 2000, 2001 David Megginson - david@megginson.com
//
// This program is free software; you can redistribute it and/or
// modify it under the terms of the GNU General Public License as
//
// You should have received a copy of the GNU General Public License
// along with this program; if not, write to the Free Software
-// Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
//
// $Id$
-#include <iostream>
+#ifdef HAVE_CONFIG_H
+# include "config.h"
+#endif
-#include <Main/fgfs.hxx>
+#include <simgear/compiler.h>
+#include <simgear/structure/exception.hxx>
+#include <simgear/props/props_io.hxx>
+
+#include <simgear/magvar/magvar.hxx>
+#include <simgear/timing/sg_time.hxx>
+#include <simgear/misc/sg_path.hxx>
+#include <simgear/sound/soundmgr_openal.hxx>
+
+#include <Aircraft/aircraft.hxx>
+#include <FDM/flight.hxx>
+#include <GUI/gui.h>
+
+#include "globals.hxx"
#include "fg_props.hxx"
-using std::istream;
-using std::ostream;
+
+static bool winding_ccw = true; // FIXME: temporary
+
+static bool fdm_data_logging = false; // FIXME: temporary
+
+static bool frozen = false; // FIXME: temporary
+
+using std::string;
+\f
+////////////////////////////////////////////////////////////////////////
+// Default property bindings (not yet handled by any module).
+////////////////////////////////////////////////////////////////////////
+
+struct LogClassMapping {
+ sgDebugClass c;
+ string name;
+ LogClassMapping(sgDebugClass cc, string nname) { c = cc; name = nname; }
+};
+
+LogClassMapping log_class_mappings [] = {
+ LogClassMapping(SG_NONE, "none"),
+ LogClassMapping(SG_TERRAIN, "terrain"),
+ LogClassMapping(SG_ASTRO, "astro"),
+ LogClassMapping(SG_FLIGHT, "flight"),
+ LogClassMapping(SG_INPUT, "input"),
+ LogClassMapping(SG_GL, "gl"),
+ LogClassMapping(SG_VIEW, "view"),
+ LogClassMapping(SG_COCKPIT, "cockpit"),
+ LogClassMapping(SG_GENERAL, "general"),
+ LogClassMapping(SG_MATH, "math"),
+ LogClassMapping(SG_EVENT, "event"),
+ LogClassMapping(SG_AIRCRAFT, "aircraft"),
+ LogClassMapping(SG_AUTOPILOT, "autopilot"),
+ LogClassMapping(SG_IO, "io"),
+ LogClassMapping(SG_CLIPPER, "clipper"),
+ LogClassMapping(SG_NETWORK, "network"),
+ LogClassMapping(SG_INSTR, "instrumentation"),
+ LogClassMapping(SG_SYSTEMS, "systems"),
+ LogClassMapping(SG_UNDEFD, "")
+};
+
+
+/**
+ * Get the logging classes.
+ */
+static const char *
+getLoggingClasses ()
+{
+ sgDebugClass classes = logbuf::get_log_classes();
+ static string result;
+ result = "";
+ for (int i = 0; log_class_mappings[i].c != SG_UNDEFD; i++) {
+ if ((classes&log_class_mappings[i].c) > 0) {
+ if (!result.empty())
+ result += '|';
+ result += log_class_mappings[i].name;
+ }
+ }
+ return result.c_str();
+}
+
+
+static void
+addLoggingClass (const string &name)
+{
+ sgDebugClass classes = logbuf::get_log_classes();
+ for (int i = 0; log_class_mappings[i].c != SG_UNDEFD; i++) {
+ if (name == log_class_mappings[i].name) {
+ logbuf::set_log_classes(sgDebugClass(classes|log_class_mappings[i].c));
+ return;
+ }
+ }
+ SG_LOG(SG_GENERAL, SG_WARN, "Unknown logging class: " << name);
+}
+
+
+/**
+ * Set the logging classes.
+ */
+static void
+setLoggingClasses (const char * c)
+{
+ string classes = c;
+ logbuf::set_log_classes(SG_NONE);
+
+ if (classes == "none") {
+ SG_LOG(SG_GENERAL, SG_INFO, "Disabled all logging classes");
+ return;
+ }
+
+ if (classes.empty() || classes == "all") { // default
+ logbuf::set_log_classes(SG_ALL);
+ SG_LOG(SG_GENERAL, SG_INFO, "Enabled all logging classes: "
+ << getLoggingClasses());
+ return;
+ }
+
+ string rest = classes;
+ string name = "";
+ int sep = rest.find('|');
+ while (sep > 0) {
+ name = rest.substr(0, sep);
+ rest = rest.substr(sep+1);
+ addLoggingClass(name);
+ sep = rest.find('|');
+ }
+ addLoggingClass(rest);
+ SG_LOG(SG_GENERAL, SG_INFO, "Set logging classes to "
+ << getLoggingClasses());
+}
+
+
+/**
+ * Get the logging priority.
+ */
+static const char *
+getLoggingPriority ()
+{
+ switch (logbuf::get_log_priority()) {
+ case SG_BULK:
+ return "bulk";
+ case SG_DEBUG:
+ return "debug";
+ case SG_INFO:
+ return "info";
+ case SG_WARN:
+ return "warn";
+ case SG_ALERT:
+ return "alert";
+ default:
+ SG_LOG(SG_GENERAL, SG_WARN, "Internal: Unknown logging priority number: "
+ << logbuf::get_log_priority());
+ return "unknown";
+ }
+}
+
+
+/**
+ * Set the logging priority.
+ */
+static void
+setLoggingPriority (const char * p)
+{
+ if (p == 0)
+ return;
+ string priority = p;
+ if (priority == "bulk") {
+ logbuf::set_log_priority(SG_BULK);
+ } else if (priority == "debug") {
+ logbuf::set_log_priority(SG_DEBUG);
+ } else if (priority.empty() || priority == "info") { // default
+ logbuf::set_log_priority(SG_INFO);
+ } else if (priority == "warn") {
+ logbuf::set_log_priority(SG_WARN);
+ } else if (priority == "alert") {
+ logbuf::set_log_priority(SG_ALERT);
+ } else {
+ SG_LOG(SG_GENERAL, SG_WARN, "Unknown logging priority " << priority);
+ }
+ SG_LOG(SG_GENERAL, SG_DEBUG, "Logging priority is " << getLoggingPriority());
+}
+
+
+/**
+ * Return the current frozen state.
+ */
+static bool
+getFreeze ()
+{
+ return frozen;
+}
+
+
+/**
+ * Set the current frozen state.
+ */
+static void
+setFreeze (bool f)
+{
+ frozen = f;
+
+ // Stop sound on a pause
+ SGSoundMgr *smgr = (SGSoundMgr *)globals->get_subsystem("soundmgr");
+ if ( smgr != NULL ) {
+ if ( f ) {
+ smgr->suspend();
+ } else if (!fgGetBool("/sim/sound/pause")) {
+ smgr->resume();
+ }
+ }
+}
+
+
+/**
+ * Return the number of milliseconds elapsed since simulation started.
+ */
+static double
+getElapsedTime_sec ()
+{
+ return globals->get_sim_time_sec();
+}
+
+
+/**
+ * Return the current Zulu time.
+ */
+static const char *
+getDateString ()
+{
+ static char buf[64]; // FIXME
+ struct tm * t = globals->get_time_params()->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);
+ return buf;
+}
+
+
+/**
+ * Set the current Zulu time.
+ */
+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;
+
+ // Scan for basic ISO format
+ // YYYY-MM-DDTHH:MM:SS
+ int ret = sscanf(date_string, "%d-%d-%dT%d:%d:%d",
+ &(new_time.tm_year), &(new_time.tm_mon),
+ &(new_time.tm_mday), &(new_time.tm_hour),
+ &(new_time.tm_min), &(new_time.tm_sec));
+
+ // Be pretty picky about this, so
+ // that strange things don't happen
+ // if the save file has been edited
+ // by hand.
+ if (ret != 6) {
+ SG_LOG(SG_INPUT, SG_WARN, "Date/time string " << date_string
+ << " not in YYYY-MM-DDTHH:MM:SS format; skipped");
+ return;
+ }
+
+ // OK, it looks like we got six
+ // 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 = current_aircraft.fdm_state->get_Longitude();
+ double lat = current_aircraft.fdm_state->get_Latitude();
+ globals->set_warp(warp);
+ st->update(lon, lat, cur_time_override->getLongValue(), warp);
+}
+
+/**
+ * Return the GMT as a string.
+ */
+static const char *
+getGMTString ()
+{
+ static char buf[16];
+ struct tm *t = globals->get_time_params()->getGmt();
+ snprintf(buf, 16, "%.2d:%.2d:%.2d",
+ t->tm_hour, t->tm_min, t->tm_sec);
+ return buf;
+}
+
+/**
+ * Return the magnetic variation
+ */
+static double
+getMagVar ()
+{
+ return globals->get_mag()->get_magvar() * SGD_RADIANS_TO_DEGREES;
+}
+
+
+/**
+ * Return the magnetic dip
+ */
+static double
+getMagDip ()
+{
+ return globals->get_mag()->get_magdip() * SGD_RADIANS_TO_DEGREES;
+}
+
+
+/**
+ * Return the current heading in degrees.
+ */
+static double
+getHeadingMag ()
+{
+ double magheading;
+ magheading = current_aircraft.fdm_state->get_Psi() * SGD_RADIANS_TO_DEGREES - getMagVar();
+ if (magheading < 0) magheading += 360;
+ return magheading;
+}
+
+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 ()
+{
+ return winding_ccw;
+}
+
+static void
+setWindingCCW (bool state)
+{
+ winding_ccw = state;
+ if ( winding_ccw )
+ glFrontFace ( GL_CCW );
+ else
+ glFrontFace ( GL_CW );
+}
+
+static bool
+getFDMDataLogging ()
+{
+ return fdm_data_logging;
+}
+
+static void
+setFDMDataLogging (bool state)
+{
+ // kludge; no getter or setter available
+ if (state != fdm_data_logging) {
+ fgToggleFDMdataLogging();
+ fdm_data_logging = state;
+ }
+}
+
+static const char *
+getLongitudeString ()
+{
+ static SGConstPropertyNode_ptr n = fgGetNode("/position/longitude-deg", true);
+ static SGConstPropertyNode_ptr f = fgGetNode("/sim/lon-lat-format", true);
+ static char buf[32];
+ double d = n->getDoubleValue();
+ int format = f->getIntValue();
+ char c = d < 0.0 ? 'W' : 'E';
+
+ if (format == 0) {
+ snprintf(buf, 32, "%3.6f%c", d, c);
+
+ } else if (format == 1) {
+ // dd mm.mmm' (DMM-Format) -- uses a round-off factor tailored to the
+ // required precision of the minutes field (three decimal places),
+ // preventing minute values of 60.
+ double deg = fabs(d) + 5.0E-4 / 60.0;
+ double min = fabs(deg - int(deg)) * 60.0 - 4.999E-4;
+ snprintf(buf, 32, "%d*%06.3f%c", int(d < 0.0 ? -deg : deg), min, c);
+
+ } else {
+ // mm'ss.s'' (DMS-Format) -- uses a round-off factor tailored to the
+ // required precision of the seconds field (one decimal place),
+ // preventing second values of 60.
+ double deg = fabs(d) + 0.05 / 3600.0;
+ double min = (deg - int(deg)) * 60.0;
+ double sec = (min - int(min)) * 60.0 - 0.049;
+ snprintf(buf, 32, "%d*%02d %04.1f%c", int(d < 0.0 ? -deg : deg),
+ int(min), fabs(sec), c);
+ }
+ buf[31] = '\0';
+ return buf;
+}
+
+static const char *
+getLatitudeString ()
+{
+ static SGConstPropertyNode_ptr n = fgGetNode("/position/latitude-deg", true);
+ static SGConstPropertyNode_ptr f = fgGetNode("/sim/lon-lat-format", true);
+ static char buf[32];
+ double d = n->getDoubleValue();
+ int format = f->getIntValue();
+ char c = d < 0.0 ? 'S' : 'N';
+
+ if (format == 0) {
+ snprintf(buf, 32, "%3.6f%c", d, c);
+
+ } else if (format == 1) {
+ double deg = fabs(d) + 5.0E-4 / 60.0;
+ double min = fabs(deg - int(deg)) * 60.0 - 4.999E-4;
+ snprintf(buf, 32, "%d*%06.3f%c", int(d < 0.0 ? -deg : deg), min, c);
+
+ } else {
+ double deg = fabs(d) + 0.05 / 3600.0;
+ double min = (deg - int(deg)) * 60.0;
+ double sec = (min - int(min)) * 60.0 - 0.049;
+ snprintf(buf, 32, "%d*%02d %04.1f%c", int(d < 0.0 ? -deg : deg),
+ int(min), fabs(sec), c);
+ }
+ buf[31] = '\0';
+ return buf;
+}
+
+
+
+\f
+////////////////////////////////////////////////////////////////////////
+// Tie the properties.
+////////////////////////////////////////////////////////////////////////
+
+FGProperties::FGProperties ()
+{
+}
+
+FGProperties::~FGProperties ()
+{
+}
+
+void
+FGProperties::init ()
+{
+}
+
+void
+FGProperties::bind ()
+{
+ // Simulation
+ fgTie("/sim/logging/priority", getLoggingPriority, setLoggingPriority);
+ fgTie("/sim/logging/classes", getLoggingClasses, setLoggingClasses);
+ fgTie("/sim/freeze/master", getFreeze, setFreeze);
+
+ fgTie("/sim/time/elapsed-sec", getElapsedTime_sec);
+ fgTie("/sim/time/gmt", getDateString, setDateString);
+ fgSetArchivable("/sim/time/gmt");
+ fgTie("/sim/time/gmt-string", getGMTString);
+
+ // Position
+ fgTie("/position/latitude-string", getLatitudeString);
+ fgTie("/position/longitude-string", getLongitudeString);
+
+ // Orientation
+ fgTie("/orientation/heading-magnetic-deg", getHeadingMag);
+
+ 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);
+ fgTie("/sim/temp/fdm-data-logging", getFDMDataLogging, setFDMDataLogging);
+}
+
+void
+FGProperties::unbind ()
+{
+ // Simulation
+ fgUntie("/sim/logging/priority");
+ fgUntie("/sim/logging/classes");
+ fgUntie("/sim/freeze/master");
+
+ fgUntie("/sim/time/elapsed-sec");
+ fgUntie("/sim/time/gmt");
+ fgUntie("/sim/time/gmt-string");
+ // Position
+ fgUntie("/position/latitude-string");
+ fgUntie("/position/longitude-string");
+
+ // Orientation
+ fgUntie("/orientation/heading-magnetic-deg");
+
+ // Environment
+ 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");
+ fgUntie("/sim/temp/fdm-data-logging");
+}
+
+void
+FGProperties::update (double dt)
+{
+ static SGPropertyNode_ptr offset = fgGetNode("/sim/time/local-offset", true);
+ offset->setIntValue(globals->get_time_params()->get_local_offset());
+
+
+ // utc date/time
+ static SGPropertyNode_ptr uyear = fgGetNode("/sim/time/utc/year", true);
+ static SGPropertyNode_ptr umonth = fgGetNode("/sim/time/utc/month", true);
+ static SGPropertyNode_ptr uday = fgGetNode("/sim/time/utc/day", true);
+ static SGPropertyNode_ptr uhour = fgGetNode("/sim/time/utc/hour", true);
+ static SGPropertyNode_ptr umin = fgGetNode("/sim/time/utc/minute", true);
+ static SGPropertyNode_ptr usec = fgGetNode("/sim/time/utc/second", true);
+ static SGPropertyNode_ptr uwday = fgGetNode("/sim/time/utc/weekday", true);
+ static SGPropertyNode_ptr udsec = fgGetNode("/sim/time/utc/day-seconds", true);
+
+ struct tm *u = globals->get_time_params()->getGmt();
+ uyear->setIntValue(u->tm_year + 1900);
+ umonth->setIntValue(u->tm_mon + 1);
+ uday->setIntValue(u->tm_mday);
+ uhour->setIntValue(u->tm_hour);
+ umin->setIntValue(u->tm_min);
+ usec->setIntValue(u->tm_sec);
+ uwday->setIntValue(u->tm_wday);
+
+ udsec->setIntValue(u->tm_hour * 3600 + u->tm_min * 60 + u->tm_sec);
+
+
+ // real local date/time
+ static SGPropertyNode_ptr ryear = fgGetNode("/sim/time/real/year", true);
+ static SGPropertyNode_ptr rmonth = fgGetNode("/sim/time/real/month", true);
+ static SGPropertyNode_ptr rday = fgGetNode("/sim/time/real/day", true);
+ static SGPropertyNode_ptr rhour = fgGetNode("/sim/time/real/hour", true);
+ static SGPropertyNode_ptr rmin = fgGetNode("/sim/time/real/minute", true);
+ static SGPropertyNode_ptr rsec = fgGetNode("/sim/time/real/second", true);
+ static SGPropertyNode_ptr rwday = fgGetNode("/sim/time/real/weekday", true);
+
+ time_t real = time(0);
+ struct tm *r = localtime(&real);
+ ryear->setIntValue(r->tm_year + 1900);
+ rmonth->setIntValue(r->tm_mon + 1);
+ rday->setIntValue(r->tm_mday);
+ rhour->setIntValue(r->tm_hour);
+ rmin->setIntValue(r->tm_min);
+ rsec->setIntValue(r->tm_sec);
+ rwday->setIntValue(r->tm_wday);
+}
+
+
+\f
+////////////////////////////////////////////////////////////////////////
+// Save and restore.
+////////////////////////////////////////////////////////////////////////
/**
* Save the current state of the simulator to a stream.
*/
bool
-fgSaveFlight (ostream &output)
+fgSaveFlight (std::ostream &output, bool write_all)
{
- return writeProperties(output, globals->get_props());
+
+ fgSetBool("/sim/presets/onground", false);
+ fgSetArchivable("/sim/presets/onground");
+ fgSetBool("/sim/presets/trim", false);
+ fgSetArchivable("/sim/presets/trim");
+ fgSetString("/sim/presets/speed-set", "UVW");
+ fgSetArchivable("/sim/presets/speed-set");
+
+ try {
+ writeProperties(output, globals->get_props(), write_all);
+ } catch (const sg_exception &e) {
+ guiErrorMessage("Error saving flight: ", e);
+ return false;
+ }
+ return true;
}
* Restore the current state of the simulator from a stream.
*/
bool
-fgLoadFlight (istream &input)
+fgLoadFlight (std::istream &input)
{
SGPropertyNode props;
- if (readProperties(input, &props)) {
- copyProperties(&props, globals->get_props());
- // When loading a flight, make it the
- // new initial state.
- globals->saveInitialState();
- } else {
- FG_LOG(FG_INPUT, FG_ALERT, "Error restoring flight; aborted");
+ try {
+ readProperties(input, &props);
+ } catch (const sg_exception &e) {
+ guiErrorMessage("Error reading saved flight: ", e);
return false;
}
+
+ fgSetBool("/sim/presets/onground", false);
+ fgSetBool("/sim/presets/trim", false);
+ fgSetString("/sim/presets/speed-set", "UVW");
+
+ copyProperties(&props, globals->get_props());
+ // When loading a flight, make it the
+ // new initial state.
+ globals->saveInitialState();
+ return true;
}
-// end of fg_props.cxx
+bool
+fgLoadProps (const char * path, SGPropertyNode * props, bool in_fg_root, int default_mode)
+{
+ string fullpath;
+ if (in_fg_root) {
+ SGPath loadpath(globals->get_fg_root());
+ loadpath.append(path);
+ fullpath = loadpath.str();
+ } else {
+ fullpath = path;
+ }
+
+ try {
+ readProperties(fullpath, props, default_mode);
+ } catch (const sg_exception &e) {
+ guiErrorMessage("Error reading properties: ", e);
+ return false;
+ }
+ return true;
+}
+
+
+\f
+////////////////////////////////////////////////////////////////////////
+// Property convenience functions.
+////////////////////////////////////////////////////////////////////////
+
+SGPropertyNode *
+fgGetNode (const char * path, bool create)
+{
+ return globals->get_props()->getNode(path, create);
+}
+
+SGPropertyNode *
+fgGetNode (const char * path, int index, bool create)
+{
+ return globals->get_props()->getNode(path, index, create);
+}
+
+bool
+fgHasNode (const char * path)
+{
+ return (fgGetNode(path, false) != 0);
+}
+
+void
+fgAddChangeListener (SGPropertyChangeListener * listener, const char * path)
+{
+ fgGetNode(path, true)->addChangeListener(listener);
+}
+
+void
+fgAddChangeListener (SGPropertyChangeListener * listener,
+ const char * path, int index)
+{
+ fgGetNode(path, index, true)->addChangeListener(listener);
+}
+
+bool
+fgGetBool (const char * name, bool defaultValue)
+{
+ return globals->get_props()->getBoolValue(name, defaultValue);
+}
+
+int
+fgGetInt (const char * name, int defaultValue)
+{
+ return globals->get_props()->getIntValue(name, defaultValue);
+}
+
+int
+fgGetLong (const char * name, long defaultValue)
+{
+ return globals->get_props()->getLongValue(name, defaultValue);
+}
+
+float
+fgGetFloat (const char * name, float defaultValue)
+{
+ return globals->get_props()->getFloatValue(name, defaultValue);
+}
+
+double
+fgGetDouble (const char * name, double defaultValue)
+{
+ return globals->get_props()->getDoubleValue(name, defaultValue);
+}
+
+const char *
+fgGetString (const char * name, const char * defaultValue)
+{
+ return globals->get_props()->getStringValue(name, defaultValue);
+}
+
+bool
+fgSetBool (const char * name, bool val)
+{
+ return globals->get_props()->setBoolValue(name, val);
+}
+
+bool
+fgSetInt (const char * name, int val)
+{
+ return globals->get_props()->setIntValue(name, val);
+}
+
+bool
+fgSetLong (const char * name, long val)
+{
+ return globals->get_props()->setLongValue(name, val);
+}
+
+bool
+fgSetFloat (const char * name, float val)
+{
+ return globals->get_props()->setFloatValue(name, val);
+}
+
+bool
+fgSetDouble (const char * name, double val)
+{
+ return globals->get_props()->setDoubleValue(name, val);
+}
+
+bool
+fgSetString (const char * name, const char * val)
+{
+ return globals->get_props()->setStringValue(name, val);
+}
+
+void
+fgSetArchivable (const char * name, bool state)
+{
+ SGPropertyNode * node = globals->get_props()->getNode(name);
+ if (node == 0)
+ SG_LOG(SG_GENERAL, SG_DEBUG,
+ "Attempt to set archive flag for non-existant property "
+ << name);
+ else
+ node->setAttribute(SGPropertyNode::ARCHIVE, state);
+}
+
+void
+fgSetReadable (const char * name, bool state)
+{
+ SGPropertyNode * node = globals->get_props()->getNode(name);
+ if (node == 0)
+ SG_LOG(SG_GENERAL, SG_DEBUG,
+ "Attempt to set read flag for non-existant property "
+ << name);
+ else
+ node->setAttribute(SGPropertyNode::READ, state);
+}
+
+void
+fgSetWritable (const char * name, bool state)
+{
+ SGPropertyNode * node = globals->get_props()->getNode(name);
+ if (node == 0)
+ SG_LOG(SG_GENERAL, SG_DEBUG,
+ "Attempt to set write flag for non-existant property "
+ << name);
+ else
+ node->setAttribute(SGPropertyNode::WRITE, state);
+}
+
+void
+fgUntie (const char * name)
+{
+ if (!globals->get_props()->untie(name))
+ SG_LOG(SG_GENERAL, SG_WARN, "Failed to untie property " << name);
+}
+
+
+// end of fg_props.cxx
projects / flightgear.git / blobdiff