// fg_commands.cxx - internal FGFS commands.
#ifdef HAVE_CONFIG_H
# include "config.h"
#endif
#include <string.h> // strcmp()
#include <simgear/compiler.h>
#include STL_STRING
#include STL_FSTREAM
#include <simgear/sg_inlines.h>
#include <simgear/debug/logstream.hxx>
#include <simgear/math/sg_random.h>
#include <simgear/structure/exception.hxx>
#include <simgear/structure/commands.hxx>
#include <simgear/props/props.hxx>
#include <Cockpit/panel.hxx>
#include <Cockpit/panel_io.hxx>
#include <Cockpit/hud.hxx>
#include <Environment/environment.hxx>
#include <FDM/flight.hxx>
#include <GUI/gui.h>
#include <GUI/new_gui.hxx>
#include <GUI/dialog.hxx>
#include <Aircraft/replay.hxx>
#include <Scenery/tilemgr.hxx>
#include <Scenery/scenery.hxx>
#if defined(HAVE_PLIB_PSL)
# include <Scripting/scriptmgr.hxx>
#endif
#include <Scripting/NasalSys.hxx>
#include <Sound/fg_fx.hxx>
#include <Time/sunsolver.hxx>
#include <Time/tmp.hxx>
#include "fg_init.hxx"
#include "fg_io.hxx"
#include "fg_commands.hxx"
#include "fg_props.hxx"
#include "globals.hxx"
#include "logger.hxx"
#include "util.hxx"
#include "viewmgr.hxx"
#include "main.hxx"
SG_USING_STD(string);
SG_USING_STD(ifstream);
SG_USING_STD(ofstream);
////////////////////////////////////////////////////////////////////////
// Static helper functions.
////////////////////////////////////////////////////////////////////////
static inline SGPropertyNode *
get_prop (const SGPropertyNode * arg)
{
return fgGetNode(arg->getStringValue("property[0]", "/null"), true);
}
static inline SGPropertyNode *
get_prop2 (const SGPropertyNode * arg)
{
return fgGetNode(arg->getStringValue("property[1]", "/null"), true);
}
/**
* Get a double value and split it as required.
*/
static void
split_value (double full_value, const char * mask,
double * unmodifiable, double * modifiable)
{
if (!strcmp("integer", mask)) {
*modifiable = (full_value < 0 ? ceil(full_value) : floor (full_value));
*unmodifiable = full_value - *modifiable;
} else if (!strcmp("decimal", mask)) {
*unmodifiable = (full_value < 0 ? ceil(full_value) : floor(full_value));
*modifiable = full_value - *unmodifiable;
} else {
if (strcmp("all", mask))
SG_LOG(SG_GENERAL, SG_ALERT, "Bad value " << mask << " for mask;"
<< " assuming 'all'");
*unmodifiable = 0;
*modifiable = full_value;
}
}
/**
* Clamp or wrap a value as specified.
*/
static void
limit_value (double * value, const SGPropertyNode * arg)
{
const SGPropertyNode * min_node = arg->getChild("min");
const SGPropertyNode * max_node = arg->getChild("max");
bool wrap = arg->getBoolValue("wrap");
if (min_node == 0 || max_node == 0)
wrap = false;
if (wrap) { // wrap such that min <= x < max
double min_val = min_node->getDoubleValue();
double max_val = max_node->getDoubleValue();
double resolution = arg->getDoubleValue("resolution");
if (resolution > 0.0) {
// snap to (min + N*resolution), taking special care to handle imprecision
int n = (int)floor((*value - min_val) / resolution + 0.5);
int steps = (int)floor((max_val - min_val) / resolution + 0.5);
SG_NORMALIZE_RANGE(n, 0, steps);
*value = min_val + resolution * n;
} else {
// plain circular wrapping
SG_NORMALIZE_RANGE(*value, min_val, max_val);
}
} else { // clamp such that min <= x <= max
if ((min_node != 0) && (*value < min_node->getDoubleValue()))
*value = min_node->getDoubleValue();
else if ((max_node != 0) && (*value > max_node->getDoubleValue()))
*value = max_node->getDoubleValue();
}
}
static bool
compare_values (SGPropertyNode * value1, SGPropertyNode * value2)
{
switch (value1->getType()) {
case SGPropertyNode::BOOL:
return (value1->getBoolValue() == value2->getBoolValue());
case SGPropertyNode::INT:
return (value1->getIntValue() == value2->getIntValue());
case SGPropertyNode::LONG:
return (value1->getLongValue() == value2->getLongValue());
case SGPropertyNode::FLOAT:
return (value1->getFloatValue() == value2->getFloatValue());
case SGPropertyNode::DOUBLE:
return (value1->getDoubleValue() == value2->getDoubleValue());
default:
return !strcmp(value1->getStringValue(), value2->getStringValue());
}
}
////////////////////////////////////////////////////////////////////////
// Command implementations.
////////////////////////////////////////////////////////////////////////
/**
* Built-in command: do nothing.
*/
static bool
do_null (const SGPropertyNode * arg)
{
return true;
}
#if defined(HAVE_PLIB_PSL)
/**
* Built-in command: run a PSL script.
*
* script: the PSL script to execute
*/
static bool
do_script (const SGPropertyNode * arg)
{
FGScriptMgr * mgr = (FGScriptMgr *)globals->get_subsystem("scripting");
return mgr->run(arg->getStringValue("script"));
}
#endif // HAVE_PLIB_PSL
/**
* Built-in command: run a Nasal script.
*/
static bool
do_nasal (const SGPropertyNode * arg)
{
return ((FGNasalSys*)globals->get_subsystem("nasal"))->handleCommand(arg);
}
/**
* Built-in command: exit FlightGear.
*
* status: the exit status to return to the operating system (defaults to 0)
*/
static bool
do_exit (const SGPropertyNode * arg)
{
SG_LOG(SG_INPUT, SG_INFO, "Program exit requested.");
fgSetBool("/sim/signals/exit", true);
if (fgGetBool("/sim/startup/save-on-exit")) {
#ifdef _MSC_VER
char* envp = ::getenv( "APPDATA" );
if ( envp != NULL ) {
SGPath config( envp );
config.append( "flightgear.org" );
#else
if ( homedir != NULL ) {
SGPath config( homedir );
config.append( ".fgfs" );
#endif
config.append( "autosave.xml" );
config.create_dir( 0700 );
SG_LOG(SG_IO, SG_INFO, "Saving user settings to " << config.str());
try {
writeProperties(config.str(), globals->get_props(), false, SGPropertyNode::USERARCHIVE);
} catch (const sg_exception &e) {
guiErrorMessage("Error writing autosave.xml: ", e);
}
SG_LOG(SG_INPUT, SG_DEBUG, "Finished Saving user settings");
}
}
fgExit(arg->getIntValue("status", 0));
return true;
}
/**
* Built-in command: reinitialize one or more subsystems.
*
* subsystem[*]: the name(s) of the subsystem(s) to reinitialize; if
* none is specified, reinitialize all of them.
*/
static bool
do_reinit (const SGPropertyNode * arg)
{
bool result = true;
vector<SGPropertyNode_ptr> subsystems = arg->getChildren("subsystem");
if (subsystems.size() == 0) {
globals->get_subsystem_mgr()->reinit();
} else {
for ( unsigned int i = 0; i < subsystems.size(); i++ ) {
const char * name = subsystems[i]->getStringValue();
SGSubsystem * subsystem = globals->get_subsystem(name);
if (subsystem == 0) {
result = false;
SG_LOG( SG_GENERAL, SG_ALERT,
"Subsystem " << name << "not found" );
} else {
subsystem->reinit();
}
}
}
globals->get_event_mgr()->reinit();
return result;
}
#if 0
//
// these routines look useful ??? but are never used in the code ???
//
/**
* Built-in command: suspend one or more subsystems.
*
* subsystem[*] - the name(s) of the subsystem(s) to suspend.
*/
static bool
do_suspend (const SGPropertyNode * arg)
{
bool result = true;
vector<SGPropertyNode_ptr> subsystems = arg->getChildren("subsystem");
for ( unsigned int i = 0; i < subsystems.size(); i++ ) {
const char * name = subsystems[i]->getStringValue();
SGSubsystem * subsystem = globals->get_subsystem(name);
if (subsystem == 0) {
result = false;
SG_LOG(SG_GENERAL, SG_ALERT, "Subsystem " << name << "not found");
} else {
subsystem->suspend();
}
}
return result;
}
/**
* Built-in command: suspend one or more subsystems.
*
* subsystem[*] - the name(s) of the subsystem(s) to suspend.
*/
static bool
do_resume (const SGPropertyNode * arg)
{
bool result = true;
vector<SGPropertyNode_ptr> subsystems = arg->getChildren("subsystem");
for ( unsigned int i = 0; i < subsystems.size(); i++ ) {
const char * name = subsystems[i]->getStringValue();
SGSubsystem * subsystem = globals->get_subsystem(name);
if (subsystem == 0) {
result = false;
SG_LOG(SG_GENERAL, SG_ALERT, "Subsystem " << name << "not found");
} else {
subsystem->resume();
}
}
return result;
}
#endif
/**
* Built-in command: load flight.
*
* file (optional): the name of the file to load (relative to current
* directory). Defaults to "fgfs.sav"
*/
static bool
do_load (const SGPropertyNode * arg)
{
const string &file = arg->getStringValue("file", "fgfs.sav");
ifstream input(file.c_str());
if (input.good() && fgLoadFlight(input)) {
input.close();
SG_LOG(SG_INPUT, SG_INFO, "Restored flight from " << file);
return true;
} else {
SG_LOG(SG_INPUT, SG_WARN, "Cannot load flight from " << file);
return false;
}
}
/**
* Built-in command: save flight.
*
* file (optional): the name of the file to save (relative to the
* current directory). Defaults to "fgfs.sav".
*/
static bool
do_save (const SGPropertyNode * arg)
{
const string &file = arg->getStringValue("file", "fgfs.sav");
bool write_all = arg->getBoolValue("write-all", false);
SG_LOG(SG_INPUT, SG_INFO, "Saving flight");
ofstream output(file.c_str());
if (output.good() && fgSaveFlight(output, write_all)) {
output.close();
SG_LOG(SG_INPUT, SG_INFO, "Saved flight to " << file);
return true;
} else {
SG_LOG(SG_INPUT, SG_ALERT, "Cannot save flight to " << file);
return false;
}
}
/**
* Built-in command: (re)load the panel.
*
* path (optional): the file name to load the panel from
* (relative to FG_ROOT). Defaults to the value of /sim/panel/path,
* and if that's unspecified, to "Panels/Default/default.xml".
*/
static bool
do_panel_load (const SGPropertyNode * arg)
{
string panel_path =
arg->getStringValue("path",
fgGetString("/sim/panel/path",
"Panels/Default/default.xml"));
FGPanel * new_panel = fgReadPanel(panel_path);
if (new_panel == 0) {
SG_LOG(SG_INPUT, SG_ALERT,
"Error reading new panel from " << panel_path);
return false;
}
SG_LOG(SG_INPUT, SG_INFO, "Loaded new panel from " << panel_path);
globals->get_current_panel()->unbind();
delete globals->get_current_panel();
globals->set_current_panel( new_panel );
globals->get_current_panel()->bind();
return true;
}
/**
* Built-in command: pass a mouse click to the panel.
*
* button: the mouse button number, zero-based.
* is-down: true if the button is down, false if it is up.
* x-pos: the x position of the mouse click.
* y-pos: the y position of the mouse click.
*/
static bool
do_panel_mouse_click (const SGPropertyNode * arg)
{
if (globals->get_current_panel() != 0)
return globals->get_current_panel()
->doMouseAction(arg->getIntValue("button"),
arg->getBoolValue("is-down") ? PU_DOWN : PU_UP,
arg->getIntValue("x-pos"),
arg->getIntValue("y-pos"));
else
return false;
}
/**
* Built-in command: (re)load preferences.
*
* path (optional): the file name to load the panel from (relative
* to FG_ROOT). Defaults to "preferences.xml".
*/
static bool
do_preferences_load (const SGPropertyNode * arg)
{
try {
fgLoadProps(arg->getStringValue("path", "preferences.xml"),
globals->get_props());
} catch (const sg_exception &e) {
guiErrorMessage("Error reading global preferences: ", e);
return false;
}
SG_LOG(SG_INPUT, SG_INFO, "Successfully read global preferences.");
return true;
}
static void
fix_hud_visibility()
{
if ( !strcmp(fgGetString("/sim/flight-model"), "ada") ) {
globals->get_props()->setBoolValue( "/sim/hud/visibility", true );
if ( globals->get_viewmgr()->get_current() == 1 ) {
globals->get_props()->setBoolValue( "/sim/hud/visibility", false );
}
}
}
static void
do_view_next( bool )
{
globals->get_current_view()->setHeadingOffset_deg(0.0);
globals->get_viewmgr()->next_view();
fix_hud_visibility();
globals->get_tile_mgr()->refresh_view_timestamps();
}
static void
do_view_prev( bool )
{
globals->get_current_view()->setHeadingOffset_deg(0.0);
globals->get_viewmgr()->prev_view();
fix_hud_visibility();
globals->get_tile_mgr()->refresh_view_timestamps();
}
/**
* Built-in command: cycle view.
*/
static bool
do_view_cycle (const SGPropertyNode * arg)
{
globals->get_current_view()->setHeadingOffset_deg(0.0);
globals->get_viewmgr()->next_view();
fix_hud_visibility();
globals->get_tile_mgr()->refresh_view_timestamps();
return true;
}
/**
* Built-in command: capture screen.
*/
static bool
do_screen_capture (const SGPropertyNode * arg)
{
fgDumpSnapShot();
return true;
}
/**
* Built-in command: hires capture screen.
*/
static bool
do_hires_screen_capture (const SGPropertyNode * arg)
{
fgHiResDump();
return true;
}
/**
* Reload the tile cache.
*/
static bool
do_tile_cache_reload (const SGPropertyNode * arg)
{
static const SGPropertyNode *master_freeze
= fgGetNode("/sim/freeze/master");
bool freeze = master_freeze->getBoolValue();
SG_LOG(SG_INPUT, SG_INFO, "ReIniting TileCache");
if ( !freeze ) {
fgSetBool("/sim/freeze/master", true);
}
if ( globals->get_tile_mgr()->init() ) {
// Load the local scenery data
double visibility_meters = fgGetDouble("/environment/visibility-m");
globals->get_tile_mgr()->update( visibility_meters );
} else {
SG_LOG( SG_GENERAL, SG_ALERT,
"Error in Tile Manager initialization!" );
exit(-1);
}
if ( !freeze ) {
fgSetBool("/sim/freeze/master", false);
}
return true;
}
/**
* Set the sea level outside air temperature and assigning that to all
* boundary and aloft environment layers.
*/
static bool
do_set_sea_level_degc (const SGPropertyNode * arg)
{
double temp_sea_level_degc = arg->getDoubleValue("temp-degc", 15.0);
SGPropertyNode *node, *child;
// boundary layers
node = fgGetNode( "/environment/config/boundary" );
if ( node != NULL ) {
int i = 0;
while ( ( child = node->getNode( "entry", i ) ) != NULL ) {
child->setDoubleValue( "temperature-sea-level-degc",
temp_sea_level_degc );
++i;
}
}
// aloft layers
node = fgGetNode( "/environment/config/aloft" );
if ( node != NULL ) {
int i = 0;
while ( ( child = node->getNode( "entry", i ) ) != NULL ) {
child->setDoubleValue( "temperature-sea-level-degc",
temp_sea_level_degc );
++i;
}
}
return true;
}
/**
* Set the outside air temperature at the "current" altitude by first
* calculating the corresponding sea level temp, and assigning that to
* all boundary and aloft environment layers.
*/
static bool
do_set_oat_degc (const SGPropertyNode * arg)
{
const string &temp_str = arg->getStringValue("temp-degc", "15.0");
// check for an altitude specified in the arguments, otherwise use
// current aircraft altitude.
const SGPropertyNode *altitude_ft = arg->getChild("altitude-ft");
if ( altitude_ft == NULL ) {
altitude_ft = fgGetNode("/position/altitude-ft");
}
FGEnvironment dummy; // instantiate a dummy so we can leech a method
dummy.set_elevation_ft( altitude_ft->getDoubleValue() );
dummy.set_temperature_degc( atof( temp_str.c_str() ) );
double temp_sea_level_degc = dummy.get_temperature_sea_level_degc();
//cout << "Altitude = " << altitude_ft->getDoubleValue() << endl;
//cout << "Temp at alt (C) = " << atof( temp_str.c_str() ) << endl;
//cout << "Temp sea level (C) = " << temp_sea_level_degc << endl;
SGPropertyNode *node, *child;
// boundary layers
node = fgGetNode( "/environment/config/boundary" );
if ( node != NULL ) {
int i = 0;
while ( ( child = node->getNode( "entry", i ) ) != NULL ) {
child->setDoubleValue( "temperature-sea-level-degc",
temp_sea_level_degc );
++i;
}
}
// aloft layers
node = fgGetNode( "/environment/config/aloft" );
if ( node != NULL ) {
int i = 0;
while ( ( child = node->getNode( "entry", i ) ) != NULL ) {
child->setDoubleValue( "temperature-sea-level-degc",
temp_sea_level_degc );
++i;
}
}
return true;
}
/**
* Set the sea level outside air dewpoint and assigning that to all
* boundary and aloft environment layers.
*/
static bool
do_set_dewpoint_sea_level_degc (const SGPropertyNode * arg)
{
double dewpoint_sea_level_degc = arg->getDoubleValue("dewpoint-degc", 5.0);
SGPropertyNode *node, *child;
// boundary layers
node = fgGetNode( "/environment/config/boundary" );
if ( node != NULL ) {
int i = 0;
while ( ( child = node->getNode( "entry", i ) ) != NULL ) {
child->setDoubleValue( "dewpoint-sea-level-degc",
dewpoint_sea_level_degc );
++i;
}
}
// aloft layers
node = fgGetNode( "/environment/config/aloft" );
if ( node != NULL ) {
int i = 0;
while ( ( child = node->getNode( "entry", i ) ) != NULL ) {
child->setDoubleValue( "dewpoint-sea-level-degc",
dewpoint_sea_level_degc );
++i;
}
}
return true;
}
/**
* Set the outside air dewpoint at the "current" altitude by first
* calculating the corresponding sea level dewpoint, and assigning
* that to all boundary and aloft environment layers.
*/
static bool
do_set_dewpoint_degc (const SGPropertyNode * arg)
{
const string &dewpoint_str = arg->getStringValue("dewpoint-degc", "5.0");
// check for an altitude specified in the arguments, otherwise use
// current aircraft altitude.
const SGPropertyNode *altitude_ft = arg->getChild("altitude-ft");
if ( altitude_ft == NULL ) {
altitude_ft = fgGetNode("/position/altitude-ft");
}
FGEnvironment dummy; // instantiate a dummy so we can leech a method
dummy.set_elevation_ft( altitude_ft->getDoubleValue() );
dummy.set_dewpoint_degc( atof( dewpoint_str.c_str() ) );
double dewpoint_sea_level_degc = dummy.get_dewpoint_sea_level_degc();
//cout << "Altitude = " << altitude_ft->getDoubleValue() << endl;
//cout << "Dewpoint at alt (C) = " << atof( dewpoint_str.c_str() ) << endl;
//cout << "Dewpoint at sea level (C) = " << dewpoint_sea_level_degc << endl;
SGPropertyNode *node, *child;
// boundary layers
node = fgGetNode( "/environment/config/boundary" );
if ( node != NULL ) {
int i = 0;
while ( ( child = node->getNode( "entry", i ) ) != NULL ) {
child->setDoubleValue( "dewpoint-sea-level-degc",
dewpoint_sea_level_degc );
++i;
}
}
// aloft layers
node = fgGetNode( "/environment/config/aloft" );
if ( node != NULL ) {
int i = 0;
while ( ( child = node->getNode( "entry", i ) ) != NULL ) {
child->setDoubleValue( "dewpoint-sea-level-degc",
dewpoint_sea_level_degc );
++i;
}
}
return true;
}
/**
* Update the lighting manually.
*/
static bool
do_timeofday (const SGPropertyNode * arg)
{
const string &offset_type = arg->getStringValue("timeofday", "noon");
static const SGPropertyNode *longitude
= 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();
time_t cur_time = t->get_cur_time();
// cout << "cur_time = " << cur_time << endl;
// cout << "orig_warp = " << orig_warp << endl;
int warp = 0;
if ( offset_type == "real" ) {
warp = -orig_warp;
} else if ( offset_type == "dawn" ) {
warp = fgTimeSecondsUntilSunAngle( cur_time,
longitude->getDoubleValue()
* SGD_DEGREES_TO_RADIANS,
latitude->getDoubleValue()
* SGD_DEGREES_TO_RADIANS,
90.0, true );
} else if ( offset_type == "morning" ) {
warp = fgTimeSecondsUntilSunAngle( cur_time,
longitude->getDoubleValue()
* SGD_DEGREES_TO_RADIANS,
latitude->getDoubleValue()
* SGD_DEGREES_TO_RADIANS,
75.0, true );
} else if ( offset_type == "noon" ) {
warp = fgTimeSecondsUntilSunAngle( cur_time,
longitude->getDoubleValue()
* SGD_DEGREES_TO_RADIANS,
latitude->getDoubleValue()
* SGD_DEGREES_TO_RADIANS,
0.0, true );
} else if ( offset_type == "afternoon" ) {
warp = fgTimeSecondsUntilSunAngle( cur_time,
longitude->getDoubleValue()
* SGD_DEGREES_TO_RADIANS,
latitude->getDoubleValue()
* SGD_DEGREES_TO_RADIANS,
60.0, false );
} else if ( offset_type == "dusk" ) {
warp = fgTimeSecondsUntilSunAngle( cur_time,
longitude->getDoubleValue()
* SGD_DEGREES_TO_RADIANS,
latitude->getDoubleValue()
* SGD_DEGREES_TO_RADIANS,
90.0, false );
} else if ( offset_type == "evening" ) {
warp = fgTimeSecondsUntilSunAngle( cur_time,
longitude->getDoubleValue()
* SGD_DEGREES_TO_RADIANS,
latitude->getDoubleValue()
* SGD_DEGREES_TO_RADIANS,
100.0, false );
} else if ( offset_type == "midnight" ) {
warp = fgTimeSecondsUntilSunAngle( cur_time,
longitude->getDoubleValue()
* SGD_DEGREES_TO_RADIANS,
latitude->getDoubleValue()
* 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() );
return true;
}
/**
* Built-in command: toggle a bool property value.
*
* property: The name of the property to toggle.
*/
static bool
do_property_toggle (const SGPropertyNode * arg)
{
SGPropertyNode * prop = get_prop(arg);
return prop->setBoolValue(!prop->getBoolValue());
}
/**
* Built-in command: assign a value to a property.
*
* property: the name of the property to assign.
* value: the value to assign; or
* property[1]: the property to copy from.
*/
static bool
do_property_assign (const SGPropertyNode * arg)
{
SGPropertyNode * prop = get_prop(arg);
const SGPropertyNode * prop2 = get_prop2(arg);
const SGPropertyNode * value = arg->getNode("value");
if (value != 0)
return prop->setUnspecifiedValue(value->getStringValue());
else if (prop2)
return prop->setUnspecifiedValue(prop2->getStringValue());
else
return false;
}
/**
* Built-in command: increment or decrement a property value.
*
* If the 'step' argument is present, it will be used; otherwise,
* the command uses 'offset' and 'factor', usually from the mouse.
*
* property: the name of the property to increment or decrement.
* step: the amount of the increment or decrement (default: 0).
* offset: offset from the current setting (used for the mouse; multiplied
* by factor)
* factor: scaling amount for the offset (defaults to 1).
* min: the minimum allowed value (default: no minimum).
* max: the maximum allowed value (default: no maximum).
* mask: 'integer' to apply only to the left of the decimal point,
* 'decimal' to apply only to the right of the decimal point,
* or 'all' to apply to the whole number (the default).
* wrap: true if the value should be wrapped when it passes min or max;
* both min and max must be present for this to work (default:
* false).
*/
static bool
do_property_adjust (const SGPropertyNode * arg)
{
SGPropertyNode * prop = get_prop(arg);
double amount = 0;
if (arg->hasValue("step"))
amount = arg->getDoubleValue("step");
else
amount = (arg->getDoubleValue("factor", 1)
* arg->getDoubleValue("offset"));
double unmodifiable, modifiable;
split_value(prop->getDoubleValue(), arg->getStringValue("mask", "all"),
&unmodifiable, &modifiable);
modifiable += amount;
limit_value(&modifiable, arg);
prop->setDoubleValue(unmodifiable + modifiable);
return true;
}
/**
* Built-in command: multiply a property value.
*
* property: the name of the property to multiply.
* factor: the amount by which to multiply.
* min: the minimum allowed value (default: no minimum).
* max: the maximum allowed value (default: no maximum).
* mask: 'integer' to apply only to the left of the decimal point,
* 'decimal' to apply only to the right of the decimal point,
* or 'all' to apply to the whole number (the default).
* wrap: true if the value should be wrapped when it passes min or max;
* both min and max must be present for this to work (default:
* false).
*/
static bool
do_property_multiply (const SGPropertyNode * arg)
{
SGPropertyNode * prop = get_prop(arg);
double factor = arg->getDoubleValue("factor", 1);
double unmodifiable, modifiable;
split_value(prop->getDoubleValue(), arg->getStringValue("mask", "all"),
&unmodifiable, &modifiable);
modifiable *= factor;
limit_value(&modifiable, arg);
prop->setDoubleValue(unmodifiable + modifiable);
return true;
}
/**
* Built-in command: swap two property values.
*
* property[0]: the name of the first property.
* property[1]: the name of the second property.
*/
static bool
do_property_swap (const SGPropertyNode * arg)
{
SGPropertyNode * prop1 = get_prop(arg);
SGPropertyNode * prop2 = get_prop2(arg);
// FIXME: inefficient
const string & tmp = prop1->getStringValue();
return (prop1->setUnspecifiedValue(prop2->getStringValue()) &&
prop2->setUnspecifiedValue(tmp.c_str()));
}
/**
* Built-in command: Set a property to an axis or other moving input.
*
* property: the name of the property to set.
* setting: the current input setting, usually between -1.0 and 1.0.
* offset: the offset to shift by, before applying the factor.
* factor: the factor to multiply by (use negative to reverse).
*/
static bool
do_property_scale (const SGPropertyNode * arg)
{
SGPropertyNode * prop = get_prop(arg);
double setting = arg->getDoubleValue("setting");
double offset = arg->getDoubleValue("offset", 0.0);
double factor = arg->getDoubleValue("factor", 1.0);
bool squared = arg->getBoolValue("squared", false);
int power = arg->getIntValue("power", (squared ? 2 : 1));
int sign = (setting < 0 ? -1 : 1);
switch (power) {
case 1:
break;
case 2:
setting = setting * setting * sign;
break;
case 3:
setting = setting * setting * setting;
break;
case 4:
setting = setting * setting * setting * setting * sign;
break;
default:
setting = pow(setting, power);
if ((power % 2) == 0)
setting *= sign;
break;
}
return prop->setDoubleValue((setting + offset) * factor);
}
/**
* Built-in command: cycle a property through a set of values.
*
* If the current value isn't in the list, the cycle will
* (re)start from the beginning.
*
* property: the name of the property to cycle.
* value[*]: the list of values to cycle through.
*/
static bool
do_property_cycle (const SGPropertyNode * arg)
{
SGPropertyNode * prop = get_prop(arg);
vector<SGPropertyNode_ptr> values = arg->getChildren("value");
int selection = -1;
int nSelections = values.size();
if (nSelections < 1) {
SG_LOG(SG_GENERAL, SG_ALERT, "No values for property-cycle");
return false;
}
// Try to find the current selection
for (int i = 0; i < nSelections; i++) {
if (compare_values(prop, values[i])) {
selection = i + 1;
break;
}
}
// Default or wrap to the first selection
if (selection < 0 || selection >= nSelections)
selection = 0;
prop->setUnspecifiedValue(values[selection]->getStringValue());
return true;
}
/**
* Built-in command: randomize a numeric property value.
*
* property: the name of the property value to randomize.
* min: the minimum allowed value.
* max: the maximum allowed value.
*/
static bool
do_property_randomize (const SGPropertyNode * arg)
{
SGPropertyNode * prop = get_prop(arg);
double min = arg->getDoubleValue("min", DBL_MIN);
double max = arg->getDoubleValue("max", DBL_MAX);
prop->setDoubleValue(sg_random() * (max - min) + min);
return true;
}
/**
* Built-in command: reinit the data logging system based on the
* current contents of the /logger tree.
*/
static bool
do_data_logging_commit (const SGPropertyNode * arg)
{
FGLogger *log = (FGLogger *)globals->get_subsystem("logger");
log->reinit();
return true;
}
/**
* Built-in command: Add a dialog to the GUI system. Does *not*
* display the dialog. The property node should have the same format
* as a dialog XML configuration. It must include:
*
* name: the name of the GUI dialog for future reference.
*/
static bool
do_dialog_new (const SGPropertyNode * arg)
{
NewGUI * gui = (NewGUI *)globals->get_subsystem("gui");
// Note the casting away of const: this is *real*. Doing a
// "dialog-apply" command later on will mutate this property node.
// I'm not convinced that this isn't the Right Thing though; it
// allows client to create a node, pass it to dialog-new, and get
// the values back from the dialog by reading the same node.
// Perhaps command arguments are not as "const" as they would
// seem?
gui->newDialog((SGPropertyNode*)arg);
return true;
}
/**
* Built-in command: Show an XML-configured dialog.
*
* dialog-name: the name of the GUI dialog to display.
*/
static bool
do_dialog_show (const SGPropertyNode * arg)
{
NewGUI * gui = (NewGUI *)globals->get_subsystem("gui");
gui->showDialog(arg->getStringValue("dialog-name"));
return true;
}
/**
* Built-in Command: Hide the active XML-configured dialog.
*/
static bool
do_dialog_close (const SGPropertyNode * arg)
{
NewGUI * gui = (NewGUI *)globals->get_subsystem("gui");
if(arg->hasValue("dialog-name"))
return gui->closeDialog(arg->getStringValue("dialog-name"));
return gui->closeActiveDialog();
}
/**
* Update a value in the active XML-configured dialog.
*
* object-name: The name of the GUI object(s) (all GUI objects if omitted).
*/
static bool
do_dialog_update (const SGPropertyNode * arg)
{
NewGUI * gui = (NewGUI *)globals->get_subsystem("gui");
FGDialog * dialog;
if (arg->hasValue("dialog-name"))
dialog = gui->getDialog(arg->getStringValue("dialog-name"));
else
dialog = gui->getActiveDialog();
if (dialog != 0) {
dialog->updateValues(arg->getStringValue("object-name"));
return true;
} else {
return false;
}
}
/**
* Apply a value in the active XML-configured dialog.
*
* object-name: The name of the GUI object(s) (all GUI objects if omitted).
*/
static bool
do_dialog_apply (const SGPropertyNode * arg)
{
NewGUI * gui = (NewGUI *)globals->get_subsystem("gui");
FGDialog * dialog;
if (arg->hasValue("dialog-name"))
dialog = gui->getDialog(arg->getStringValue("dialog-name"));
else
dialog = gui->getActiveDialog();
if (dialog != 0) {
dialog->applyValues(arg->getStringValue("object-name"));
return true;
} else {
return false;
}
}
/**
* Redraw GUI (applying new widget colors). Doesn't reload the dialogs,
* unlike reinit().
*/
static bool
do_gui_redraw (const SGPropertyNode * arg)
{
NewGUI * gui = (NewGUI *)globals->get_subsystem("gui");
gui->redraw();
return true;
}
/**
* Built-in command: play an audio message (i.e. a wav file) This is
* fire and forget. Call this once per message and it will get dumped
* into a queue. Messages are played sequentially so they do not
* overlap.
*/
static bool
do_play_audio_message (const SGPropertyNode * arg)
{
FGFX *fx = (FGFX *)globals->get_subsystem("fx");
string path = arg->getStringValue("path");
string file = arg->getStringValue("file");
double volume = arg->getDoubleValue("volume");
// cout << "playing " << path << " / " << file << endl;
fx->play_message( path, file, volume );
return true;
}
/**
* Built-in command: commit presets (read from in /sim/presets/)
*/
static bool
do_presets_commit (const SGPropertyNode * arg)
{
// unbind the current fdm state so property changes
// don't get lost when we subsequently delete this fdm
// and create a new one.
cur_fdm_state->unbind();
// set position from presets
fgInitPosition();
fgReInitSubsystems();
globals->get_tile_mgr()->update( fgGetDouble("/environment/visibility-m") );
#if 0
if ( ! fgGetBool("/sim/presets/onground") ) {
fgSetBool( "/sim/freeze/master", true );
fgSetBool( "/sim/freeze/clock", true );
}
#endif
return true;
}
/**
* Built-in command: set log level (0 ... 7)
*/
static bool
do_log_level (const SGPropertyNode * arg)
{
sglog().setLogLevels( SG_ALL, (sgDebugPriority)arg->getIntValue() );
return true;
}
/**
* Built-in command: replay the FDR buffer
*/
static bool
do_replay (const SGPropertyNode * arg)
{
// freeze the master fdm
fgSetInt( "/sim/freeze/replay-state", 1 );
FGReplay *r = (FGReplay *)(globals->get_subsystem( "replay" ));
fgSetDouble( "/sim/replay/start-time", r->get_start_time() );
fgSetDouble( "/sim/replay/end-time", r->get_end_time() );
double duration = fgGetDouble( "/sim/replay/duration" );
if( duration && duration < (r->get_end_time() - r->get_start_time()) ) {
fgSetDouble( "/sim/replay/time", r->get_end_time() - duration );
} else {
fgSetDouble( "/sim/replay/time", r->get_start_time() );
}
// cout << "start = " << r->get_start_time()
// << " end = " << r->get_end_time() << endl;
return true;
}
/**
* Return terrain elevation for given longitude/latitude pair.
*/
static bool
do_terrain_elevation (const SGPropertyNode * arg)
{
double lon = arg->getDoubleValue("longitude-deg", 0.0);
double lat = arg->getDoubleValue("latitude-deg", 0.0);
double elev;
bool ret = globals->get_scenery()->get_elevation_m(lat, lon, 10000.0, elev, 0);
const_cast<SGPropertyNode *>(arg)->setDoubleValue("elevation-m", elev);
return ret;
}
static bool
do_decrease_visibility (const SGPropertyNode * arg)
{
double new_value = fgGetDouble("/environment/visibility-m") * 0.9;
fgSetDouble("/environment/visibility-m", new_value);
fgDefaultWeatherValue("visibility-m", new_value);
globals->get_subsystem("environment")->reinit();
return true;
}
static bool
do_increase_visibility (const SGPropertyNode * arg)
{
double new_value = fgGetDouble("/environment/visibility-m") * 1.1;
fgSetDouble("/environment/visibility-m", new_value);
fgDefaultWeatherValue("visibility-m", new_value);
globals->get_subsystem("environment")->reinit();
return true;
}
static bool
do_hud_init(const SGPropertyNode *)
{
fgHUDInit(0); // minimal HUD
return true;
}
static bool
do_hud_init2(const SGPropertyNode *)
{
fgHUDInit2(0); // normal HUD
return true;
}
/**
* An fgcommand to allow loading of xml files via nasal,
* the xml file's structure will be made available within
* a (definable) property tree node
*
* @param filename a string to hold the complete path & filename of a XML file
* @param targetnode a string pointing to a location within the property tree
* where to store the parsed XML file
*/
static bool
do_load_xml_to_proptree(const SGPropertyNode * node)
{
// SG_LOG(SG_GENERAL, SG_ALERT, "fgcommand loadxml executed");
SGPropertyNode * targetnode;
targetnode = fgGetNode(node->getNode("targetnode")->getStringValue(),true);
const char *filename = node->getNode("filename")->getStringValue();
try {
fgLoadProps(filename, targetnode);
} catch (const sg_exception &e) {
string errmsg = "Error reading file " + string(filename) + ":\n";
guiErrorMessage(errmsg.c_str(), e);
return false;
}
return true;
}
/**
* an fgcommand to allow saving of xml files via nasal,
* the file's structure will be determined based on what's
* encountered in the passed (source) property tree node
*
* @param filename a string to hold the complete path & filename of the (new)
* XML file
* @param sourcenode a string pointing to a location within the property tree
* where to find the nodes that should be written recursively into an XML file
*
* TODO:
* deal with already existing filenames, optionally return error/success
* values in a separate node to provide status information
*
* note: it's directly using writeProperties, which is not necessarily
* preferable, but for now it should work ...
*/
static bool
do_save_xml_from_proptree(const SGPropertyNode * node)
{
//TODO: do Parameter validation !
SGPropertyNode * sourcenode;
sourcenode = fgGetNode(node->getNode("sourcenode")->getStringValue(),true);
const char *filename = node->getNode("filename")->getStringValue();
try {
writeProperties (filename, sourcenode, true);
} catch (const sg_exception &e) {
string errmsg = "Error writing file " + string(filename) + ":\n";
guiErrorMessage(errmsg.c_str(), e);
return false;
}
return true;
}
static bool
do_press_cockpit_button (const SGPropertyNode *arg)
{
const char *prefix = arg->getStringValue("prefix");
if (arg->getBoolValue("guarded") && fgGetDouble((string(prefix) + "-guard").c_str()) < 1)
return true;
string prop = string(prefix) + "-button";
double value;
if (arg->getBoolValue("latching"))
value = fgGetDouble(prop.c_str()) > 0 ? 0 : 1;
else
value = 1;
fgSetDouble(prop.c_str(), value);
fgSetBool(arg->getStringValue("discrete"), value > 0);
return true;
}
static bool
do_release_cockpit_button (const SGPropertyNode *arg)
{
const char *prefix = arg->getStringValue("prefix");
if (arg->getBoolValue("guarded")) {
string prop = string(prefix) + "-guard";
if (fgGetDouble(prop.c_str()) < 1) {
fgSetDouble(prop.c_str(), 1);
return true;
}
}
if (! arg->getBoolValue("latching")) {
fgSetDouble((string(prefix) + "-button").c_str(), 0);
fgSetBool(arg->getStringValue("discrete"), false);
}
return true;
}
////////////////////////////////////////////////////////////////////////
// Command setup.
////////////////////////////////////////////////////////////////////////
/**
* Table of built-in commands.
*
* New commands do not have to be added here; any module in the application
* can add a new command using globals->get_commands()->addCommand(...).
*/
static struct {
const char * name;
SGCommandMgr::command_t command;
} built_ins [] = {
{ "null", do_null },
#if defined(HAVE_PLIB_PSL)
{ "script", do_script },
#endif // HAVE_PLIB_PSL
{ "nasal", do_nasal },
{ "exit", do_exit },
{ "reinit", do_reinit },
{ "suspend", do_reinit },
{ "resume", do_reinit },
{ "load", do_load },
{ "save", do_save },
{ "panel-load", do_panel_load },
{ "panel-mouse-click", do_panel_mouse_click },
{ "preferences-load", do_preferences_load },
{ "view-cycle", do_view_cycle },
{ "screen-capture", do_screen_capture },
{ "hires-screen-capture", do_hires_screen_capture },
{ "tile-cache-reload", do_tile_cache_reload },
{ "set-sea-level-air-temp-degc", do_set_sea_level_degc },
{ "set-outside-air-temp-degc", do_set_oat_degc },
{ "set-dewpoint-sea-level-air-temp-degc", do_set_dewpoint_sea_level_degc },
{ "set-dewpoint-temp-degc", do_set_dewpoint_degc },
{ "timeofday", do_timeofday },
{ "property-toggle", do_property_toggle },
{ "property-assign", do_property_assign },
{ "property-adjust", do_property_adjust },
{ "property-multiply", do_property_multiply },
{ "property-swap", do_property_swap },
{ "property-scale", do_property_scale },
{ "property-cycle", do_property_cycle },
{ "property-randomize", do_property_randomize },
{ "data-logging-commit", do_data_logging_commit },
{ "dialog-new", do_dialog_new },
{ "dialog-show", do_dialog_show },
{ "dialog-close", do_dialog_close },
{ "dialog-update", do_dialog_update },
{ "dialog-apply", do_dialog_apply },
{ "gui-redraw", do_gui_redraw },
{ "play-audio-message", do_play_audio_message },
{ "presets-commit", do_presets_commit },
{ "log-level", do_log_level },
{ "replay", do_replay },
{ "terrain-elevation", do_terrain_elevation },
{ "decrease-visibility", do_decrease_visibility },
{ "increase-visibility", do_increase_visibility },
{ "hud-init", do_hud_init },
{ "hud-init2", do_hud_init2 },
{ "loadxml", do_load_xml_to_proptree},
{ "savexml", do_save_xml_from_proptree },
{ "press-cockpit-button", do_press_cockpit_button },
{ "release-cockpit-button", do_release_cockpit_button },
{ 0, 0 } // zero-terminated
};
/**
* Initialize the default built-in commands.
*
* Other commands may be added by other parts of the application.
*/
void
fgInitCommands ()
{
SG_LOG(SG_GENERAL, SG_INFO, "Initializing basic built-in commands:");
for (int i = 0; built_ins[i].name != 0; i++) {
SG_LOG(SG_GENERAL, SG_INFO, " " << built_ins[i].name);
globals->get_commands()->addCommand(built_ins[i].name,
built_ins[i].command);
}
typedef bool (*dummy)();
fgTie( "/command/view/next", dummy(0), do_view_next );
fgTie( "/command/view/prev", dummy(0), do_view_prev );
}
// end of fg_commands.cxx