-// set initial aircraft speed
-bool fgVelocityInit( void ) {
- switch(globals->get_options()->get_speedset()) {
- case FGOptions::FG_VC:
- current_aircraft.fdm_state->set_V_calibrated_kts(
- globals->get_options()->get_vc() );
- break;
- case FGOptions::FG_MACH:
- current_aircraft.fdm_state->set_Mach_number(
- globals->get_options()->get_mach() );
- break;
- case FGOptions::FG_VTUVW:
- current_aircraft.fdm_state->set_Velocities_Wind_Body(
- globals->get_options()->get_uBody(),
- globals->get_options()->get_vBody(),
- globals->get_options()->get_wBody() );
- break;
- case FGOptions::FG_VTNED:
- current_aircraft.fdm_state->set_Velocities_Local(
- globals->get_options()->get_vNorth(),
- globals->get_options()->get_vEast(),
- globals->get_options()->get_vDown() );
- break;
- default:
- current_aircraft.fdm_state->set_V_calibrated_kts( 0.0 );
+// Initialize the flight model subsystem. This just creates the
+// object. The actual fdm initialization is delayed until we get a
+// proper scenery elevation hit. This is checked for in main.cxx
+
+void fgInitFDM() {
+
+ if ( cur_fdm_state ) {
+ delete cur_fdm_state;
+ cur_fdm_state = 0;
+ }
+
+ double dt = 1.0 / fgGetInt("/sim/model-hz");
+ aircraft_dir = fgGetString("/sim/aircraft-dir");
+ const string &model = fgGetString("/sim/flight-model");
+
+ try {
+ if ( model == "larcsim" ) {
+ cur_fdm_state = new FGLaRCsim( dt );
+ } else if ( model == "jsb" ) {
+ cur_fdm_state = new FGJSBsim( dt );
+ } else if ( model == "ada" ) {
+ cur_fdm_state = new FGADA( dt );
+ } else if ( model == "balloon" ) {
+ cur_fdm_state = new FGBalloonSim( dt );
+ } else if ( model == "magic" ) {
+ cur_fdm_state = new FGMagicCarpet( dt );
+ } else if ( model == "ufo" ) {
+ cur_fdm_state = new FGUFO( dt );
+ } else if ( model == "external" ) {
+ cur_fdm_state = new FGExternal( dt );
+ } else if ( model.find("network") == 0 ) {
+ string host = "localhost";
+ int port1 = 5501;
+ int port2 = 5502;
+ int port3 = 5503;
+ string net_options = model.substr(8);
+ string::size_type begin, end;
+ begin = 0;
+ // host
+ end = net_options.find( ",", begin );
+ if ( end != string::npos ) {
+ host = net_options.substr(begin, end - begin);
+ begin = end + 1;
+ }
+ // port1
+ end = net_options.find( ",", begin );
+ if ( end != string::npos ) {
+ port1 = atoi( net_options.substr(begin, end - begin).c_str() );
+ begin = end + 1;
+ }
+ // port2
+ end = net_options.find( ",", begin );
+ if ( end != string::npos ) {
+ port2 = atoi( net_options.substr(begin, end - begin).c_str() );
+ begin = end + 1;
+ }
+ // port3
+ end = net_options.find( ",", begin );
+ if ( end != string::npos ) {
+ port3 = atoi( net_options.substr(begin, end - begin).c_str() );
+ begin = end + 1;
+ }
+ cur_fdm_state = new FGExternalNet( dt, host, port1, port2, port3 );
+ } else if ( model == "null" ) {
+ cur_fdm_state = new FGNullFDM( dt );
+ } else if ( model == "yasim" ) {
+ cur_fdm_state = new YASim( dt );
+ } else {
+ SG_LOG(SG_GENERAL, SG_ALERT,
+ "Unrecognized flight model '" << model
+ << "', cannot init flight dynamics model.");
+ exit(-1);
+ }
+ } catch ( ... ) {
+ SG_LOG(SG_GENERAL, SG_ALERT, "FlightGear aborting\n\n");
+ exit(-1);