1 // aircraft.cxx -- various aircraft routines
3 // Written by Curtis Olson, started May 1997.
5 // Copyright (C) 1997 Curtis L. Olson - curt@infoplane.com
7 // This program is free software; you can redistribute it and/or
8 // modify it under the terms of the GNU General Public License as
9 // published by the Free Software Foundation; either version 2 of the
10 // License, or (at your option) any later version.
12 // This program is distributed in the hope that it will be useful, but
13 // WITHOUT ANY WARRANTY; without even the implied warranty of
14 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 // General Public License for more details.
17 // You should have received a copy of the GNU General Public License
18 // along with this program; if not, write to the Free Software
19 // Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
25 #include <string.h> // strdup
30 #include <simgear/constants.h>
31 #include <simgear/debug/logstream.hxx>
32 #include <simgear/misc/sg_path.hxx>
33 #include <simgear/misc/commands.hxx>
34 #include <simgear/misc/exception.hxx>
36 #include <Main/globals.hxx>
37 #include <Main/fg_props.hxx>
38 #include <Main/viewmgr.hxx>
39 #include <Sound/fg_fx.hxx>
40 #include <Sound/soundmgr.hxx>
41 #include <Cockpit/panel.hxx>
42 #include <Cockpit/hud.hxx>
43 #include <Cockpit/panel_io.hxx>
44 #include <Model/acmodel.hxx>
45 #include <Autopilot/newauto.hxx>
46 #include <Main/fgfs.hxx>
48 #include "aircraft.hxx"
51 // This is a record containing all the info for the aircraft currently
53 fgAIRCRAFT current_aircraft;
56 // Initialize an Aircraft structure
57 void fgAircraftInit( void ) {
58 SG_LOG( SG_AIRCRAFT, SG_INFO, "Initializing Aircraft structure" );
60 current_aircraft.fdm_state = cur_fdm_state;
61 current_aircraft.controls = globals->get_controls();
65 // Display various parameters to stdout
66 void fgAircraftOutputCurrent(fgAIRCRAFT *a) {
71 SG_LOG( SG_FLIGHT, SG_DEBUG,
73 << (f->get_Longitude() * 3600.0 * SGD_RADIANS_TO_DEGREES) << ","
74 << (f->get_Latitude() * 3600.0 * SGD_RADIANS_TO_DEGREES) << ","
76 << ") (Phi,Theta,Psi)=("
77 << f->get_Phi() << ","
78 << f->get_Theta() << ","
79 << f->get_Psi() << ")" );
81 SG_LOG( SG_FLIGHT, SG_DEBUG,
82 "Kts = " << f->get_V_equiv_kts()
83 << " Elev = " << globals->get_controls()->get_elevator()
84 << " Aileron = " << globals->get_controls()->get_aileron()
85 << " Rudder = " << globals->get_controls()->get_rudder()
86 << " Power = " << globals->get_controls()->get_throttle( 0 ) );
90 // Show available aircraft types
91 void fgReadAircraft(void) {
93 SGPropertyNode *aircraft_types = fgGetNode("/sim/aircraft-types", true);
95 SGPath path( globals->get_fg_root() );
96 path.append("Aircraft");
101 dirp = ulOpenDir(path.c_str());
103 SG_LOG( SG_AIRCRAFT, SG_ALERT, "Unable to open aircraft directory." );
108 while ((dire = ulReadDir(dirp)) != NULL) {
111 if ((ptr = strstr(dire->d_name, "-set.xml")) && strlen(ptr) == 8) {
116 afile.append(dire->d_name);
120 readProperties(afile.str(), &root);
125 SGPropertyNode *node = root.getNode("sim");
127 SGPropertyNode *desc = node->getNode("description");
131 SGPropertyNode *aircraft =
132 aircraft_types->getChild(dire->d_name, 0, true);
135 aircraft->setStringValue(strdup(desc->getStringValue()));
144 globals->get_commands()->addCommand("load-aircraft", fgLoadAircraft);
148 fgLoadAircraft (const SGPropertyNode * arg)
150 static const SGPropertyNode *master_freeze
151 = fgGetNode("/sim/freeze/master");
153 bool freeze = master_freeze->getBoolValue();
155 fgSetBool("/sim/freeze/master", true);
159 // remove electrical system
160 cur_fdm_state->unbind();
162 // Save the selected aircraft model since restoreInitialState
163 // will obverwrite it.
165 string aircraft = fgGetString("/sim/aircraft", "");
166 globals->restoreInitialState();
168 fgSetString("/sim/aircraft", aircraft.c_str());
169 fgSetString("/sim/panel/path", "Aircraft/c172/Panels/c172-vfr-panel.xml");
171 if ( aircraft.size() > 0 ) {
172 SGPath aircraft_path(globals->get_fg_root());
173 aircraft_path.append("Aircraft");
174 aircraft_path.append(aircraft);
175 aircraft_path.concat("-set.xml");
176 SG_LOG(SG_INPUT, SG_INFO, "Reading default aircraft: " << aircraft
177 << " from " << aircraft_path.str());
179 readProperties(aircraft_path.str(), globals->get_props());
180 } catch (const sg_exception &e) {
181 string message = "Error reading default aircraft: ";
182 message += e.getFormattedMessage();
183 SG_LOG(SG_INPUT, SG_ALERT, message);
187 SG_LOG(SG_INPUT, SG_ALERT, "No default aircraft specified");
190 // Initialize the (new) 2D panel.
192 string panel_path = fgGetString("/sim/panel/path",
193 "Aircraft/c172/Panels/c172-vfr-panel.xml");
195 FGPanel *panel = fgReadPanel(panel_path);
197 SG_LOG( SG_INPUT, SG_ALERT,
198 "Error reading new panel from " << panel_path );
200 SG_LOG( SG_INPUT, SG_INFO, "Loaded new panel from " << panel_path );
201 globals->get_current_panel()->unbind();
202 delete globals->get_current_panel();
203 globals->set_current_panel( panel );
204 globals->get_current_panel()->init();
205 globals->get_current_panel()->bind();
206 globals->get_current_panel()->update(0);
209 // Load the new 3D model
211 globals->get_aircraft_model()->unbind();
212 delete globals->get_aircraft_model();
213 globals->set_aircraft_model(new FGAircraftModel);
214 globals->get_aircraft_model()->init();
215 globals->get_aircraft_model()->bind();
218 // load new electrical system
221 // update our position based on current presets
225 fgHUDInit(¤t_aircraft);
227 SGTime *t = globals->get_time_params();
230 globals->set_time_params( t );
232 // Reinitialize some subsystems
234 globals->get_viewmgr()->reinit();
235 globals->get_controls()->reset_all();
236 globals->get_autopilot()->reset();
237 globals->get_aircraft_model()->reinit();
238 globals->get_subsystem("fx")->reinit();
240 fgReInitSubsystems();
243 fgSetBool("/sim/freeze/master", false);