1 // fg_commands.cxx - internal FGFS commands.
7 #include <string.h> // strcmp()
9 #include <simgear/compiler.h>
14 #include <simgear/sg_inlines.h>
15 #include <simgear/debug/logstream.hxx>
16 #include <simgear/math/sg_random.h>
17 #include <simgear/scene/material/mat.hxx>
18 #include <simgear/scene/material/matlib.hxx>
19 #include <simgear/structure/exception.hxx>
20 #include <simgear/structure/commands.hxx>
21 #include <simgear/props/props.hxx>
22 #include <simgear/props/props_io.hxx>
23 #include <simgear/structure/event_mgr.hxx>
24 #include <simgear/sound/soundmgr_openal.hxx>
25 #include <simgear/timing/sg_time.hxx>
26 #include <simgear/io/HTTPMemoryRequest.hxx>
28 #include <FDM/flight.hxx>
30 #include <GUI/new_gui.hxx>
31 #include <GUI/dialog.hxx>
32 #include <Aircraft/replay.hxx>
33 #include <Scenery/scenery.hxx>
34 #include <Scenery/tilemgr.hxx>
35 #include <Scripting/NasalSys.hxx>
36 #include <Sound/sample_queue.hxx>
37 #include <Airports/xmlloader.hxx>
38 #include <Network/HTTPClient.hxx>
39 #include <Viewer/viewmgr.hxx>
40 #include <Viewer/viewer.hxx>
41 #include <Environment/presets.hxx>
43 #include "fg_init.hxx"
46 #include "fg_commands.hxx"
47 #include "fg_props.hxx"
48 #include "globals.hxx"
52 #include "positioninit.hxx"
54 #include <boost/scoped_array.hpp>
56 #if FG_HAVE_GPERFTOOLS
57 # include <google/profiler.h>
65 ////////////////////////////////////////////////////////////////////////
66 // Static helper functions.
67 ////////////////////////////////////////////////////////////////////////
70 static inline SGPropertyNode *
71 get_prop (const SGPropertyNode * arg)
73 return fgGetNode(arg->getStringValue("property[0]", "/null"), true);
76 static inline SGPropertyNode *
77 get_prop2 (const SGPropertyNode * arg)
79 return fgGetNode(arg->getStringValue("property[1]", "/null"), true);
84 * Get a double value and split it as required.
87 split_value (double full_value, const char * mask,
88 double * unmodifiable, double * modifiable)
90 if (!strcmp("integer", mask)) {
91 *modifiable = (full_value < 0 ? ceil(full_value) : floor (full_value));
92 *unmodifiable = full_value - *modifiable;
93 } else if (!strcmp("decimal", mask)) {
94 *unmodifiable = (full_value < 0 ? ceil(full_value) : floor(full_value));
95 *modifiable = full_value - *unmodifiable;
97 if (strcmp("all", mask))
98 SG_LOG(SG_GENERAL, SG_ALERT, "Bad value " << mask << " for mask;"
99 << " assuming 'all'");
101 *modifiable = full_value;
107 * Clamp or wrap a value as specified.
110 limit_value (double * value, const SGPropertyNode * arg)
112 const SGPropertyNode * min_node = arg->getChild("min");
113 const SGPropertyNode * max_node = arg->getChild("max");
115 bool wrap = arg->getBoolValue("wrap");
117 if (min_node == 0 || max_node == 0)
120 if (wrap) { // wrap such that min <= x < max
121 double min_val = min_node->getDoubleValue();
122 double max_val = max_node->getDoubleValue();
123 double resolution = arg->getDoubleValue("resolution");
124 if (resolution > 0.0) {
125 // snap to (min + N*resolution), taking special care to handle imprecision
126 int n = (int)floor((*value - min_val) / resolution + 0.5);
127 int steps = (int)floor((max_val - min_val) / resolution + 0.5);
128 SG_NORMALIZE_RANGE(n, 0, steps);
129 *value = min_val + resolution * n;
131 // plain circular wrapping
132 SG_NORMALIZE_RANGE(*value, min_val, max_val);
134 } else { // clamp such that min <= x <= max
135 if ((min_node != 0) && (*value < min_node->getDoubleValue()))
136 *value = min_node->getDoubleValue();
137 else if ((max_node != 0) && (*value > max_node->getDoubleValue()))
138 *value = max_node->getDoubleValue();
143 compare_values (SGPropertyNode * value1, SGPropertyNode * value2)
145 switch (value1->getType()) {
146 case simgear::props::BOOL:
147 return (value1->getBoolValue() == value2->getBoolValue());
148 case simgear::props::INT:
149 return (value1->getIntValue() == value2->getIntValue());
150 case simgear::props::LONG:
151 return (value1->getLongValue() == value2->getLongValue());
152 case simgear::props::FLOAT:
153 return (value1->getFloatValue() == value2->getFloatValue());
154 case simgear::props::DOUBLE:
155 return (value1->getDoubleValue() == value2->getDoubleValue());
157 return !strcmp(value1->getStringValue(), value2->getStringValue());
163 ////////////////////////////////////////////////////////////////////////
164 // Command implementations.
165 ////////////////////////////////////////////////////////////////////////
169 * Built-in command: do nothing.
172 do_null (const SGPropertyNode * arg)
178 * Built-in command: run a Nasal script.
181 do_nasal (const SGPropertyNode * arg)
183 return ((FGNasalSys*)globals->get_subsystem("nasal"))->handleCommand(arg);
187 * Built-in command: exit FlightGear.
189 * status: the exit status to return to the operating system (defaults to 0)
192 do_exit (const SGPropertyNode * arg)
194 SG_LOG(SG_INPUT, SG_INFO, "Program exit requested.");
195 fgSetBool("/sim/signals/exit", true);
196 globals->saveUserSettings();
197 fgOSExit(arg->getIntValue("status", 0));
203 * Reset FlightGear (Shift-Escape or Menu->File->Reset)
206 do_reset (const SGPropertyNode * arg)
208 fgReInitSubsystems();
213 * Built-in command: replay the FDR buffer
216 do_replay (const SGPropertyNode * arg)
218 FGReplay *r = (FGReplay *)(globals->get_subsystem( "replay" ));
223 * Built-in command: pause/unpause the sim
226 do_pause (const SGPropertyNode * arg)
228 bool paused = fgGetBool("/sim/freeze/master",true) || fgGetBool("/sim/freeze/clock",true);
229 if (paused && (fgGetInt("/sim/freeze/replay-state",0)>0))
235 fgSetBool("/sim/freeze/master",!paused);
236 fgSetBool("/sim/freeze/clock",!paused);
239 SGPropertyNode_ptr args(new SGPropertyNode);
240 args->setStringValue("id", "sim-pause");
241 if (!paused && fgGetBool("/sim/view-name-popup")) {
242 args->setStringValue("label", "Simulation is paused");
243 globals->get_commands()->execute("show-message", args);
245 globals->get_commands()->execute("clear-message", args);
252 * Built-in command: load flight.
254 * file (optional): the name of the file to load (relative to current
255 * directory). Defaults to "fgfs.sav"
258 do_load (const SGPropertyNode * arg)
260 string file = arg->getStringValue("file", "fgfs.sav");
261 if (file.size() < 4 || file.substr(file.size() - 4) != ".sav")
264 if (!fgValidatePath(file.c_str(), false)) {
265 SG_LOG(SG_IO, SG_ALERT, "load: reading '" << file << "' denied "
266 "(unauthorized access)");
270 ifstream input(file.c_str());
271 if (input.good() && fgLoadFlight(input)) {
273 SG_LOG(SG_INPUT, SG_INFO, "Restored flight from " << file);
276 SG_LOG(SG_INPUT, SG_WARN, "Cannot load flight from " << file);
283 * Built-in command: save flight.
285 * file (optional): the name of the file to save (relative to the
286 * current directory). Defaults to "fgfs.sav".
289 do_save (const SGPropertyNode * arg)
291 string file = arg->getStringValue("file", "fgfs.sav");
292 if (file.size() < 4 || file.substr(file.size() - 4) != ".sav")
295 if (!fgValidatePath(file.c_str(), false)) {
296 SG_LOG(SG_IO, SG_ALERT, "save: writing '" << file << "' denied "
297 "(unauthorized access)");
301 bool write_all = arg->getBoolValue("write-all", false);
302 SG_LOG(SG_INPUT, SG_INFO, "Saving flight");
303 ofstream output(file.c_str());
304 if (output.good() && fgSaveFlight(output, write_all)) {
306 SG_LOG(SG_INPUT, SG_INFO, "Saved flight to " << file);
309 SG_LOG(SG_INPUT, SG_ALERT, "Cannot save flight to " << file);
315 * Built-in command: save flight recorder tape.
319 do_save_tape (const SGPropertyNode * arg)
321 FGReplay* replay = (FGReplay*) globals->get_subsystem("replay");
322 replay->saveTape(arg);
327 * Built-in command: load flight recorder tape.
331 do_load_tape (const SGPropertyNode * arg)
333 FGReplay* replay = (FGReplay*) globals->get_subsystem("replay");
334 replay->loadTape(arg);
340 * Built-in command: (re)load the panel.
342 * path (optional): the file name to load the panel from
343 * (relative to FG_ROOT). Defaults to the value of /sim/panel/path,
344 * and if that's unspecified, to "Panels/Default/default.xml".
347 do_panel_load (const SGPropertyNode * arg)
349 string panel_path = arg->getStringValue("path");
350 if (!panel_path.empty()) {
351 // write to the standard property, which will force a load
352 fgSetString("/sim/panel/path", panel_path.c_str());
359 * Built-in command: (re)load preferences.
361 * path (optional): the file name to load the panel from (relative
362 * to FG_ROOT). Defaults to "preferences.xml".
365 do_preferences_load (const SGPropertyNode * arg)
368 fgLoadProps(arg->getStringValue("path", "preferences.xml"),
369 globals->get_props());
370 } catch (const sg_exception &e) {
371 guiErrorMessage("Error reading global preferences: ", e);
374 SG_LOG(SG_INPUT, SG_INFO, "Successfully read global preferences.");
379 do_view_next(bool do_it)
381 // Only switch view if really requested to do so (and not for example while
382 // reset/reposition where /command/view/next is set to false)
385 globals->get_current_view()->setHeadingOffset_deg(0.0);
386 globals->get_viewmgr()->next_view();
391 do_view_prev(bool do_it)
395 globals->get_current_view()->setHeadingOffset_deg(0.0);
396 globals->get_viewmgr()->prev_view();
401 * An fgcommand to toggle fullscreen mode.
405 do_toggle_fullscreen(const SGPropertyNode *arg)
412 * Built-in command: cycle view.
415 do_view_cycle (const SGPropertyNode * arg)
417 globals->get_current_view()->setHeadingOffset_deg(0.0);
418 globals->get_viewmgr()->next_view();
423 * Built-in command: capture screen.
426 do_screen_capture (const SGPropertyNode * arg)
428 return fgDumpSnapShot();
432 do_reload_shaders (const SGPropertyNode*)
434 simgear::reload_shaders();
439 do_dump_scene_graph (const SGPropertyNode*)
446 do_dump_terrain_branch (const SGPropertyNode*)
448 fgDumpTerrainBranch();
450 double lon_deg = fgGetDouble("/position/longitude-deg");
451 double lat_deg = fgGetDouble("/position/latitude-deg");
452 SGGeod geodPos = SGGeod::fromDegFt(lon_deg, lat_deg, 0.0);
453 SGVec3d zero = SGVec3d::fromGeod(geodPos);
455 SG_LOG(SG_INPUT, SG_INFO, "Model parameters:");
456 SG_LOG(SG_INPUT, SG_INFO, "Center: " << zero.x() << ", " << zero.y() << ", " << zero.z() );
457 SG_LOG(SG_INPUT, SG_INFO, "Rotation: " << lat_deg << ", " << lon_deg );
463 do_print_visible_scene_info(const SGPropertyNode*)
465 fgPrintVisibleSceneInfoCommand();
470 * Built-in command: hires capture screen.
473 do_hires_screen_capture (const SGPropertyNode * arg)
481 * Reload the tile cache.
484 do_tile_cache_reload (const SGPropertyNode * arg)
486 SGPropertyNode *master_freeze = fgGetNode("/sim/freeze/master");
487 bool freeze = master_freeze->getBoolValue();
488 SG_LOG(SG_INPUT, SG_INFO, "ReIniting TileCache");
490 master_freeze->setBoolValue(true);
493 globals->get_subsystem("tile-manager")->reinit();
496 master_freeze->setBoolValue(false);
502 * Reload the materials definition
505 do_materials_reload (const SGPropertyNode * arg)
507 SG_LOG(SG_INPUT, SG_INFO, "Reloading Materials");
508 SGMaterialLib* new_matlib = new SGMaterialLib;
509 SGPath mpath( globals->get_fg_root() );
510 mpath.append( fgGetString("/sim/rendering/materials-file") );
511 bool loaded = new_matlib->load(globals->get_fg_root(),
513 globals->get_props());
516 SG_LOG( SG_GENERAL, SG_ALERT,
517 "Error loading materials file " << mpath.str() );
521 globals->set_matlib(new_matlib);
522 FGTileMgr* tileManager = static_cast<FGTileMgr*>(globals->get_subsystem("tile-manager"));
523 tileManager->materialLibChanged();
530 These do_set_(some-environment-parameters) are deprecated and no longer
531 useful/functional - Torsten Dreyer, January 2011
533 * Set the sea level outside air temperature and assigning that to all
534 * boundary and aloft environment layers.
537 do_set_sea_level_degc ( double temp_sea_level_degc)
539 SGPropertyNode *node, *child;
542 node = fgGetNode( "/environment/config/boundary" );
543 if ( node != NULL ) {
545 while ( ( child = node->getNode( "entry", i ) ) != NULL ) {
546 child->setDoubleValue( "temperature-sea-level-degc",
547 temp_sea_level_degc );
553 node = fgGetNode( "/environment/config/aloft" );
554 if ( node != NULL ) {
556 while ( ( child = node->getNode( "entry", i ) ) != NULL ) {
557 child->setDoubleValue( "temperature-sea-level-degc",
558 temp_sea_level_degc );
567 do_set_sea_level_degc (const SGPropertyNode * arg)
569 return do_set_sea_level_degc( arg->getDoubleValue("temp-degc", 15.0) );
574 * Set the outside air temperature at the "current" altitude by first
575 * calculating the corresponding sea level temp, and assigning that to
576 * all boundary and aloft environment layers.
579 do_set_oat_degc (const SGPropertyNode * arg)
581 double oat_degc = arg->getDoubleValue("temp-degc", 15.0);
582 // check for an altitude specified in the arguments, otherwise use
583 // current aircraft altitude.
584 const SGPropertyNode *altitude_ft = arg->getChild("altitude-ft");
585 if ( altitude_ft == NULL ) {
586 altitude_ft = fgGetNode("/position/altitude-ft");
589 FGEnvironment dummy; // instantiate a dummy so we can leech a method
590 dummy.set_elevation_ft( altitude_ft->getDoubleValue() );
591 dummy.set_temperature_degc( oat_degc );
592 return do_set_sea_level_degc( dummy.get_temperature_sea_level_degc());
596 * Set the sea level outside air dewpoint and assigning that to all
597 * boundary and aloft environment layers.
600 do_set_dewpoint_sea_level_degc (double dewpoint_sea_level_degc)
603 SGPropertyNode *node, *child;
606 node = fgGetNode( "/environment/config/boundary" );
607 if ( node != NULL ) {
609 while ( ( child = node->getNode( "entry", i ) ) != NULL ) {
610 child->setDoubleValue( "dewpoint-sea-level-degc",
611 dewpoint_sea_level_degc );
617 node = fgGetNode( "/environment/config/aloft" );
618 if ( node != NULL ) {
620 while ( ( child = node->getNode( "entry", i ) ) != NULL ) {
621 child->setDoubleValue( "dewpoint-sea-level-degc",
622 dewpoint_sea_level_degc );
631 do_set_dewpoint_sea_level_degc (const SGPropertyNode * arg)
633 return do_set_dewpoint_sea_level_degc(arg->getDoubleValue("dewpoint-degc", 5.0));
637 * Set the outside air dewpoint at the "current" altitude by first
638 * calculating the corresponding sea level dewpoint, and assigning
639 * that to all boundary and aloft environment layers.
642 do_set_dewpoint_degc (const SGPropertyNode * arg)
644 double dewpoint_degc = arg->getDoubleValue("dewpoint-degc", 5.0);
646 // check for an altitude specified in the arguments, otherwise use
647 // current aircraft altitude.
648 const SGPropertyNode *altitude_ft = arg->getChild("altitude-ft");
649 if ( altitude_ft == NULL ) {
650 altitude_ft = fgGetNode("/position/altitude-ft");
653 FGEnvironment dummy; // instantiate a dummy so we can leech a method
654 dummy.set_elevation_ft( altitude_ft->getDoubleValue() );
655 dummy.set_dewpoint_degc( dewpoint_degc );
656 return do_set_dewpoint_sea_level_degc(dummy.get_dewpoint_sea_level_degc());
661 * Built-in command: toggle a bool property value.
663 * property: The name of the property to toggle.
666 do_property_toggle (const SGPropertyNode * arg)
668 SGPropertyNode * prop = get_prop(arg);
669 return prop->setBoolValue(!prop->getBoolValue());
674 * Built-in command: assign a value to a property.
676 * property: the name of the property to assign.
677 * value: the value to assign; or
678 * property[1]: the property to copy from.
681 do_property_assign (const SGPropertyNode * arg)
683 SGPropertyNode * prop = get_prop(arg);
684 const SGPropertyNode * value = arg->getNode("value");
687 return prop->setUnspecifiedValue(value->getStringValue());
690 const SGPropertyNode * prop2 = get_prop2(arg);
692 return prop->setUnspecifiedValue(prop2->getStringValue());
700 * Built-in command: increment or decrement a property value.
702 * If the 'step' argument is present, it will be used; otherwise,
703 * the command uses 'offset' and 'factor', usually from the mouse.
705 * property: the name of the property to increment or decrement.
706 * step: the amount of the increment or decrement (default: 0).
707 * offset: offset from the current setting (used for the mouse; multiplied
709 * factor: scaling amount for the offset (defaults to 1).
710 * min: the minimum allowed value (default: no minimum).
711 * max: the maximum allowed value (default: no maximum).
712 * mask: 'integer' to apply only to the left of the decimal point,
713 * 'decimal' to apply only to the right of the decimal point,
714 * or 'all' to apply to the whole number (the default).
715 * wrap: true if the value should be wrapped when it passes min or max;
716 * both min and max must be present for this to work (default:
720 do_property_adjust (const SGPropertyNode * arg)
722 SGPropertyNode * prop = get_prop(arg);
725 if (arg->hasValue("step"))
726 amount = arg->getDoubleValue("step");
728 amount = (arg->getDoubleValue("factor", 1)
729 * arg->getDoubleValue("offset"));
731 double unmodifiable, modifiable;
732 split_value(prop->getDoubleValue(), arg->getStringValue("mask", "all"),
733 &unmodifiable, &modifiable);
734 modifiable += amount;
735 limit_value(&modifiable, arg);
737 prop->setDoubleValue(unmodifiable + modifiable);
744 * Built-in command: multiply a property value.
746 * property: the name of the property to multiply.
747 * factor: the amount by which to multiply.
748 * min: the minimum allowed value (default: no minimum).
749 * max: the maximum allowed value (default: no maximum).
750 * mask: 'integer' to apply only to the left of the decimal point,
751 * 'decimal' to apply only to the right of the decimal point,
752 * or 'all' to apply to the whole number (the default).
753 * wrap: true if the value should be wrapped when it passes min or max;
754 * both min and max must be present for this to work (default:
758 do_property_multiply (const SGPropertyNode * arg)
760 SGPropertyNode * prop = get_prop(arg);
761 double factor = arg->getDoubleValue("factor", 1);
763 double unmodifiable, modifiable;
764 split_value(prop->getDoubleValue(), arg->getStringValue("mask", "all"),
765 &unmodifiable, &modifiable);
766 modifiable *= factor;
767 limit_value(&modifiable, arg);
769 prop->setDoubleValue(unmodifiable + modifiable);
776 * Built-in command: swap two property values.
778 * property[0]: the name of the first property.
779 * property[1]: the name of the second property.
782 do_property_swap (const SGPropertyNode * arg)
784 SGPropertyNode * prop1 = get_prop(arg);
785 SGPropertyNode * prop2 = get_prop2(arg);
787 // FIXME: inefficient
788 const string & tmp = prop1->getStringValue();
789 return (prop1->setUnspecifiedValue(prop2->getStringValue()) &&
790 prop2->setUnspecifiedValue(tmp.c_str()));
795 * Built-in command: Set a property to an axis or other moving input.
797 * property: the name of the property to set.
798 * setting: the current input setting, usually between -1.0 and 1.0.
799 * offset: the offset to shift by, before applying the factor.
800 * factor: the factor to multiply by (use negative to reverse).
803 do_property_scale (const SGPropertyNode * arg)
805 SGPropertyNode * prop = get_prop(arg);
806 double setting = arg->getDoubleValue("setting");
807 double offset = arg->getDoubleValue("offset", 0.0);
808 double factor = arg->getDoubleValue("factor", 1.0);
809 bool squared = arg->getBoolValue("squared", false);
810 int power = arg->getIntValue("power", (squared ? 2 : 1));
812 int sign = (setting < 0 ? -1 : 1);
818 setting = setting * setting * sign;
821 setting = setting * setting * setting;
824 setting = setting * setting * setting * setting * sign;
827 setting = pow(setting, power);
828 if ((power % 2) == 0)
833 return prop->setDoubleValue((setting + offset) * factor);
838 * Built-in command: cycle a property through a set of values.
840 * If the current value isn't in the list, the cycle will
841 * (re)start from the beginning.
843 * property: the name of the property to cycle.
844 * value[*]: the list of values to cycle through.
847 do_property_cycle (const SGPropertyNode * arg)
849 SGPropertyNode * prop = get_prop(arg);
850 std::vector<SGPropertyNode_ptr> values = arg->getChildren("value");
852 bool wrap = arg->getBoolValue("wrap", true);
853 // compatible with knob/pick animations
854 int offset = arg->getIntValue("offset", 1);
857 int nSelections = values.size();
859 if (nSelections < 1) {
860 SG_LOG(SG_GENERAL, SG_ALERT, "No values for property-cycle");
864 // Try to find the current selection
865 for (int i = 0; i < nSelections; i++) {
866 if (compare_values(prop, values[i])) {
872 if (selection < 0) { // default to first selection
877 selection = (selection + nSelections) % nSelections;
879 SG_CLAMP_RANGE(selection, 0, nSelections - 1);
883 prop->setUnspecifiedValue(values[selection]->getStringValue());
889 * Built-in command: randomize a numeric property value.
891 * property: the name of the property value to randomize.
892 * min: the minimum allowed value.
893 * max: the maximum allowed value.
896 do_property_randomize (const SGPropertyNode * arg)
898 SGPropertyNode * prop = get_prop(arg);
899 double min = arg->getDoubleValue("min", DBL_MIN);
900 double max = arg->getDoubleValue("max", DBL_MAX);
901 prop->setDoubleValue(sg_random() * (max - min) + min);
906 * Built-in command: interpolate a property value over time
908 * property: the name of the property value to interpolate.
909 * type: the interpolation type ("numeric", "color", etc.)
910 * easing: name of easing function (see http://easings.net/)
911 * value[0..n] any number of constant values to interpolate
912 * time/rate[0..n] time between each value, number of time elements must
913 * match those of value elements. Instead of time also rate can
914 * be used which automatically calculates the time to change
915 * the property value at the given speed.
917 * property[1..n+1] any number of target values taken from named properties
918 * time/rate[0..n] time between each value, number of time elements must
919 * match those of value elements. Instead of time also rate can
920 * be used which automatically calculates the time to change
921 * the property value at the given speed.
924 do_property_interpolate (const SGPropertyNode * arg)
926 SGPropertyNode * prop = get_prop(arg);
930 simgear::PropertyList time_nodes = arg->getChildren("time");
931 simgear::PropertyList rate_nodes = arg->getChildren("rate");
933 if( !time_nodes.empty() && !rate_nodes.empty() )
934 // mustn't specify time and rate
937 simgear::PropertyList::size_type num_times = time_nodes.empty()
941 simgear::PropertyList value_nodes = arg->getChildren("value");
942 if( value_nodes.empty() )
944 simgear::PropertyList prop_nodes = arg->getChildren("property");
946 // must have one more property node
947 if( prop_nodes.size() != num_times + 1 )
950 value_nodes.reserve(num_times);
951 for( size_t i = 1; i < prop_nodes.size(); ++i )
952 value_nodes.push_back( fgGetNode(prop_nodes[i]->getStringValue()) );
956 if( value_nodes.size() != num_times )
960 deltas.reserve(num_times);
962 if( !time_nodes.empty() )
964 for( size_t i = 0; i < num_times; ++i )
965 deltas.push_back( time_nodes[i]->getDoubleValue() );
969 for( size_t i = 0; i < num_times; ++i )
971 // TODO calculate delta based on property type
972 double delta = value_nodes[i]->getDoubleValue()
974 ? value_nodes[i - 1]->getDoubleValue()
975 : prop->getDoubleValue()
977 deltas.push_back( fabs(delta / rate_nodes[i]->getDoubleValue()) );
981 return prop->interpolate
983 arg->getStringValue("type", "numeric"),
986 arg->getStringValue("easing", "linear")
991 * Built-in command: reinit the data logging system based on the
992 * current contents of the /logger tree.
995 do_data_logging_commit (const SGPropertyNode * arg)
997 FGLogger *log = (FGLogger *)globals->get_subsystem("logger");
1003 * Built-in command: Add a dialog to the GUI system. Does *not*
1004 * display the dialog. The property node should have the same format
1005 * as a dialog XML configuration. It must include:
1007 * name: the name of the GUI dialog for future reference.
1010 do_dialog_new (const SGPropertyNode * arg)
1012 NewGUI * gui = (NewGUI *)globals->get_subsystem("gui");
1017 // Note the casting away of const: this is *real*. Doing a
1018 // "dialog-apply" command later on will mutate this property node.
1019 // I'm not convinced that this isn't the Right Thing though; it
1020 // allows client to create a node, pass it to dialog-new, and get
1021 // the values back from the dialog by reading the same node.
1022 // Perhaps command arguments are not as "const" as they would
1024 gui->newDialog((SGPropertyNode*)arg);
1029 * Built-in command: Show an XML-configured dialog.
1031 * dialog-name: the name of the GUI dialog to display.
1034 do_dialog_show (const SGPropertyNode * arg)
1036 NewGUI * gui = (NewGUI *)globals->get_subsystem("gui");
1037 gui->showDialog(arg->getStringValue("dialog-name"));
1043 * Built-in Command: Hide the active XML-configured dialog.
1046 do_dialog_close (const SGPropertyNode * arg)
1048 NewGUI * gui = (NewGUI *)globals->get_subsystem("gui");
1049 if(arg->hasValue("dialog-name"))
1050 return gui->closeDialog(arg->getStringValue("dialog-name"));
1051 return gui->closeActiveDialog();
1056 * Update a value in the active XML-configured dialog.
1058 * object-name: The name of the GUI object(s) (all GUI objects if omitted).
1061 do_dialog_update (const SGPropertyNode * arg)
1063 NewGUI * gui = (NewGUI *)globals->get_subsystem("gui");
1065 if (arg->hasValue("dialog-name"))
1066 dialog = gui->getDialog(arg->getStringValue("dialog-name"));
1068 dialog = gui->getActiveDialog();
1071 dialog->updateValues(arg->getStringValue("object-name"));
1079 do_open_browser (const SGPropertyNode * arg)
1082 if (arg->hasValue("path"))
1083 path = arg->getStringValue("path");
1085 if (arg->hasValue("url"))
1086 path = arg->getStringValue("url");
1090 return openBrowser(path);
1094 * Apply a value in the active XML-configured dialog.
1096 * object-name: The name of the GUI object(s) (all GUI objects if omitted).
1099 do_dialog_apply (const SGPropertyNode * arg)
1101 NewGUI * gui = (NewGUI *)globals->get_subsystem("gui");
1103 if (arg->hasValue("dialog-name"))
1104 dialog = gui->getDialog(arg->getStringValue("dialog-name"));
1106 dialog = gui->getActiveDialog();
1109 dialog->applyValues(arg->getStringValue("object-name"));
1118 * Redraw GUI (applying new widget colors). Doesn't reload the dialogs,
1122 do_gui_redraw (const SGPropertyNode * arg)
1124 NewGUI * gui = (NewGUI *)globals->get_subsystem("gui");
1131 * Adds model to the scenery. The path to the added branch (/models/model[*])
1132 * is returned in property "property".
1135 do_add_model (const SGPropertyNode * arg)
1137 SGPropertyNode * model = fgGetNode("models", true);
1139 for (i = 0; model->hasChild("model",i); i++);
1140 model = model->getChild("model", i, true);
1141 copyProperties(arg, model);
1142 if (model->hasValue("elevation-m"))
1143 model->setDoubleValue("elevation-ft", model->getDoubleValue("elevation-m")
1144 * SG_METER_TO_FEET);
1145 model->getNode("load", true);
1146 model->removeChildren("load");
1147 const_cast<SGPropertyNode *>(arg)->setStringValue("property", model->getPath());
1152 * Built-in command: play an audio message (i.e. a wav file) This is
1153 * fire and forget. Call this once per message and it will get dumped
1154 * into a queue. Messages are played sequentially so they do not
1158 do_play_audio_sample (const SGPropertyNode * arg)
1160 SGSoundMgr *smgr = globals->get_soundmgr();
1162 SG_LOG(SG_GENERAL, SG_WARN, "play-audio-sample: sound-manager not running");
1166 string path = arg->getStringValue("path");
1167 string file = arg->getStringValue("file");
1168 float volume = arg->getFloatValue("volume");
1169 // cout << "playing " << path << " / " << file << endl;
1171 FGSampleQueue *queue = globals->get_chatter_queue();
1173 queue = new FGSampleQueue(smgr, "chatter");
1174 queue->tie_to_listener();
1175 globals->set_chatter_queue(queue);
1178 SGSoundSample *msg = new SGSoundSample(file.c_str(), path);
1179 msg->set_volume( volume );
1184 } catch (const sg_io_exception&) {
1185 SG_LOG(SG_GENERAL, SG_ALERT, "play-audio-sample: "
1186 "failed to load" << path << '/' << file);
1192 * Built-in command: commit presets (read from in /sim/presets/)
1195 do_presets_commit (const SGPropertyNode * arg)
1197 if (fgGetBool("/sim/initialized", false)) {
1198 fgReInitSubsystems();
1200 // Nasal can trigger this during initial init, which confuses
1201 // the logic in ReInitSubsystems, since initial state has not been
1202 // saved at that time. Short-circuit everything here.
1203 flightgear::initPosition();
1210 * Built-in command: set log level (0 ... 7)
1213 do_log_level (const SGPropertyNode * arg)
1215 sglog().setLogLevels( SG_ALL, (sgDebugPriority)arg->getIntValue() );
1222 do_decrease_visibility (const SGPropertyNode * arg)
1224 Environment::Presets::VisibilitySingleton::instance()->adjust( 0.9 );
1229 do_increase_visibility (const SGPropertyNode * arg)
1231 Environment::Presets::VisibilitySingleton::instance()->adjust( 1.1 );
1236 * An fgcommand to allow loading of xml files via nasal,
1237 * the xml file's structure will be made available within
1238 * a property tree node defined under argument "targetnode",
1239 * or in the given argument tree under "data" otherwise.
1241 * @param filename a string to hold the complete path & filename of an XML file
1242 * @param targetnode a string pointing to a location within the property tree
1243 * where to store the parsed XML file. If <targetnode> is undefined, then the
1244 * file contents are stored under a node <data> in the argument tree.
1248 do_load_xml_to_proptree(const SGPropertyNode * arg)
1250 SGPath file(arg->getStringValue("filename"));
1251 if (file.str().empty())
1254 if (file.extension() != "xml")
1255 file.concat(".xml");
1257 std::string icao = arg->getStringValue("icao");
1259 if (file.isRelative()) {
1260 SGPath absPath = globals->resolve_maybe_aircraft_path(file.str());
1261 if (!absPath.isNull())
1265 SG_LOG(SG_IO, SG_ALERT, "loadxml: Cannot find XML property file '"
1266 << file.str() << "'.");
1271 if (!XMLLoader::findAirportData(icao, file.str(), file)) {
1272 SG_LOG(SG_IO, SG_INFO, "loadxml: failed to find airport data for "
1273 << file.str() << " at ICAO:" << icao);
1278 if (!fgValidatePath(file.c_str(), false)) {
1279 SG_LOG(SG_IO, SG_ALERT, "loadxml: reading '" << file.str() << "' denied "
1280 "(unauthorized access)");
1284 SGPropertyNode *targetnode;
1285 if (arg->hasValue("targetnode"))
1286 targetnode = fgGetNode(arg->getStringValue("targetnode"), true);
1288 targetnode = const_cast<SGPropertyNode *>(arg)->getNode("data", true);
1291 readProperties(file.c_str(), targetnode, true);
1292 } catch (const sg_exception &e) {
1293 SG_LOG(SG_IO, SG_WARN, "loadxml: " << e.getFormattedMessage());
1300 class RemoteXMLRequest:
1301 public simgear::HTTP::MemoryRequest
1304 SGPropertyNode_ptr _complete;
1305 SGPropertyNode_ptr _status;
1306 SGPropertyNode_ptr _failed;
1307 SGPropertyNode_ptr _target;
1309 RemoteXMLRequest(const std::string& url, SGPropertyNode* targetNode) :
1310 simgear::HTTP::MemoryRequest(url),
1315 void setCompletionProp(SGPropertyNode_ptr p)
1320 void setStatusProp(SGPropertyNode_ptr p)
1325 void setFailedProp(SGPropertyNode_ptr p)
1332 virtual void onFail()
1334 SG_LOG(SG_IO, SG_INFO, "network level failure in RemoteXMLRequest");
1336 _failed->setBoolValue(true);
1340 virtual void onDone()
1342 int response = responseCode();
1343 bool failed = false;
1344 if (response == 200) {
1346 const char* buffer = responseBody().c_str();
1347 readProperties(buffer, responseBody().size(), _target, true);
1348 } catch (const sg_exception &e) {
1349 SG_LOG(SG_IO, SG_WARN, "parsing XML from remote, failed: " << e.getFormattedMessage());
1351 response = 406; // 'not acceptable', anything better?
1356 // now the response data is output, signal Nasal / listeners
1357 if (_complete) _complete->setBoolValue(true);
1358 if (_status) _status->setIntValue(response);
1359 if (_failed && failed) _failed->setBoolValue(true);
1365 do_load_xml_from_url(const SGPropertyNode * arg)
1367 FGHTTPClient* http = static_cast<FGHTTPClient*>(globals->get_subsystem("http"));
1369 SG_LOG(SG_IO, SG_ALERT, "xmlhttprequest: HTTP client not running");
1373 std::string url(arg->getStringValue("url"));
1377 SGPropertyNode *targetnode;
1378 if (arg->hasValue("targetnode"))
1379 targetnode = fgGetNode(arg->getStringValue("targetnode"), true);
1381 targetnode = const_cast<SGPropertyNode *>(arg)->getNode("data", true);
1383 RemoteXMLRequest* req = new RemoteXMLRequest(url, targetnode);
1385 if (arg->hasChild("body"))
1386 req->setBodyData(arg->getChild("body"));
1388 // connect up optional reporting properties
1389 if (arg->hasValue("complete"))
1390 req->setCompletionProp(fgGetNode(arg->getStringValue("complete"), true));
1391 if (arg->hasValue("failure"))
1392 req->setFailedProp(fgGetNode(arg->getStringValue("failure"), true));
1393 if (arg->hasValue("status"))
1394 req->setStatusProp(fgGetNode(arg->getStringValue("status"), true));
1396 http->makeRequest(req);
1402 * An fgcommand to allow saving of xml files via nasal,
1403 * the file's structure will be determined based on what's
1404 * encountered in the passed (source) property tree node
1406 * @param filename a string to hold the complete path & filename of the (new)
1408 * @param sourcenode a string pointing to a location within the property tree
1409 * where to find the nodes that should be written recursively into an XML file
1410 * @param data if no sourcenode is given, then the file contents are taken from
1411 * the argument tree's "data" node.
1415 do_save_xml_from_proptree(const SGPropertyNode * arg)
1417 SGPath file(arg->getStringValue("filename"));
1418 if (file.str().empty())
1421 if (file.extension() != "xml")
1422 file.concat(".xml");
1424 if (!fgValidatePath(file.c_str(), true)) {
1425 SG_LOG(SG_IO, SG_ALERT, "savexml: writing to '" << file.str() << "' denied "
1426 "(unauthorized access)");
1430 SGPropertyNode *sourcenode;
1431 if (arg->hasValue("sourcenode"))
1432 sourcenode = fgGetNode(arg->getStringValue("sourcenode"), true);
1433 else if (arg->getNode("data", false))
1434 sourcenode = const_cast<SGPropertyNode *>(arg)->getNode("data");
1439 writeProperties (file.c_str(), sourcenode, true);
1440 } catch (const sg_exception &e) {
1441 SG_LOG(SG_IO, SG_WARN, "savexml: " << e.getFormattedMessage());
1449 do_press_cockpit_button (const SGPropertyNode *arg)
1451 const char *prefix = arg->getStringValue("prefix");
1453 if (arg->getBoolValue("guarded") && fgGetDouble((string(prefix) + "-guard").c_str()) < 1)
1456 string prop = string(prefix) + "-button";
1459 if (arg->getBoolValue("latching"))
1460 value = fgGetDouble(prop.c_str()) > 0 ? 0 : 1;
1464 fgSetDouble(prop.c_str(), value);
1465 fgSetBool(arg->getStringValue("discrete"), value > 0);
1471 do_release_cockpit_button (const SGPropertyNode *arg)
1473 const char *prefix = arg->getStringValue("prefix");
1475 if (arg->getBoolValue("guarded")) {
1476 string prop = string(prefix) + "-guard";
1477 if (fgGetDouble(prop.c_str()) < 1) {
1478 fgSetDouble(prop.c_str(), 1);
1483 if (! arg->getBoolValue("latching")) {
1484 fgSetDouble((string(prefix) + "-button").c_str(), 0);
1485 fgSetBool(arg->getStringValue("discrete"), false);
1491 // Optional profiling commands using gperftools:
1492 // http://code.google.com/p/gperftools/
1494 #if !FG_HAVE_GPERFTOOLS
1496 no_profiling_support()
1502 "No profiling support! Install gperftools and reconfigure/rebuild fgfs."
1508 do_profiler_start(const SGPropertyNode *arg)
1510 #if FG_HAVE_GPERFTOOLS
1511 const char *filename = arg->getStringValue("filename", "fgfs.profile");
1512 ProfilerStart(filename);
1515 no_profiling_support();
1521 do_profiler_stop(const SGPropertyNode *arg)
1523 #if FG_HAVE_GPERFTOOLS
1527 no_profiling_support();
1533 ////////////////////////////////////////////////////////////////////////
1535 ////////////////////////////////////////////////////////////////////////
1539 * Table of built-in commands.
1541 * New commands do not have to be added here; any module in the application
1542 * can add a new command using globals->get_commands()->addCommand(...).
1546 SGCommandMgr::command_t command;
1548 { "null", do_null },
1549 { "nasal", do_nasal },
1550 { "exit", do_exit },
1551 { "reset", do_reset },
1552 { "pause", do_pause },
1553 { "load", do_load },
1554 { "save", do_save },
1555 { "save-tape", do_save_tape },
1556 { "load-tape", do_load_tape },
1557 { "panel-load", do_panel_load },
1558 { "preferences-load", do_preferences_load },
1559 { "toggle-fullscreen", do_toggle_fullscreen },
1560 { "view-cycle", do_view_cycle },
1561 { "screen-capture", do_screen_capture },
1562 { "hires-screen-capture", do_hires_screen_capture },
1563 { "tile-cache-reload", do_tile_cache_reload },
1565 { "set-sea-level-air-temp-degc", do_set_sea_level_degc },
1566 { "set-outside-air-temp-degc", do_set_oat_degc },
1567 { "set-dewpoint-sea-level-air-temp-degc", do_set_dewpoint_sea_level_degc },
1568 { "set-dewpoint-temp-degc", do_set_dewpoint_degc },
1570 { "property-toggle", do_property_toggle },
1571 { "property-assign", do_property_assign },
1572 { "property-adjust", do_property_adjust },
1573 { "property-multiply", do_property_multiply },
1574 { "property-swap", do_property_swap },
1575 { "property-scale", do_property_scale },
1576 { "property-cycle", do_property_cycle },
1577 { "property-randomize", do_property_randomize },
1578 { "property-interpolate", do_property_interpolate },
1579 { "data-logging-commit", do_data_logging_commit },
1580 { "dialog-new", do_dialog_new },
1581 { "dialog-show", do_dialog_show },
1582 { "dialog-close", do_dialog_close },
1583 { "dialog-update", do_dialog_update },
1584 { "dialog-apply", do_dialog_apply },
1585 { "open-browser", do_open_browser },
1586 { "gui-redraw", do_gui_redraw },
1587 { "add-model", do_add_model },
1588 { "play-audio-sample", do_play_audio_sample },
1589 { "presets-commit", do_presets_commit },
1590 { "log-level", do_log_level },
1591 { "replay", do_replay },
1593 { "decrease-visibility", do_decrease_visibility },
1594 { "increase-visibility", do_increase_visibility },
1596 { "loadxml", do_load_xml_to_proptree},
1597 { "savexml", do_save_xml_from_proptree },
1598 { "xmlhttprequest", do_load_xml_from_url },
1599 { "press-cockpit-button", do_press_cockpit_button },
1600 { "release-cockpit-button", do_release_cockpit_button },
1601 { "dump-scenegraph", do_dump_scene_graph },
1602 { "dump-terrainbranch", do_dump_terrain_branch },
1603 { "print-visible-scene", do_print_visible_scene_info },
1604 { "reload-shaders", do_reload_shaders },
1605 { "reload-materials", do_materials_reload },
1607 { "profiler-start", do_profiler_start },
1608 { "profiler-stop", do_profiler_stop },
1610 { 0, 0 } // zero-terminated
1615 * Initialize the default built-in commands.
1617 * Other commands may be added by other parts of the application.
1622 SG_LOG(SG_GENERAL, SG_BULK, "Initializing basic built-in commands:");
1623 for (int i = 0; built_ins[i].name != 0; i++) {
1624 SG_LOG(SG_GENERAL, SG_BULK, " " << built_ins[i].name);
1625 globals->get_commands()->addCommand(built_ins[i].name,
1626 built_ins[i].command);
1629 typedef bool (*dummy)();
1630 fgTie( "/command/view/next", dummy(0), do_view_next );
1631 fgTie( "/command/view/prev", dummy(0), do_view_prev );
1633 globals->get_props()->setValueReadOnly( "/sim/debug/profiler-available",
1634 bool(FG_HAVE_GPERFTOOLS) );
1637 // end of fg_commands.cxx