1 // environment-mgr.cxx -- manager for natural environment information.
3 // Written by David Megginson, started February 2002.
5 // Copyright (C) 2002 David Megginson - david@megginson.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.
23 #include <simgear/debug/logstream.hxx>
24 #include <simgear/sky/sky.hxx>
26 #include <Main/fg_props.hxx>
27 #include <Aircraft/aircraft.hxx>
29 #include "environment.hxx"
30 #include "environment_ctrl.hxx"
31 #include "environment_mgr.hxx"
33 extern SGSky *thesky; // FIXME: from main.cxx
36 FGEnvironmentMgr::FGEnvironmentMgr ()
37 : _environment(new FGEnvironment),
38 _controller(new FGUserDefEnvironmentCtrl)
42 FGEnvironmentMgr::~FGEnvironmentMgr ()
49 FGEnvironmentMgr::init ()
51 SG_LOG( SG_GENERAL, SG_INFO, "Initializing environment subsystem");
52 _controller->setEnvironment(_environment);
58 FGEnvironmentMgr::bind ()
60 fgTie("/environment/visibility-m", _environment,
61 &FGEnvironment::get_visibility_m, &FGEnvironment::set_visibility_m);
62 fgSetArchivable("/environment/visibility-m");
63 fgTie("/environment/temperature-sea-level-degc", _environment,
64 &FGEnvironment::get_temperature_sea_level_degc,
65 &FGEnvironment::set_temperature_sea_level_degc);
66 fgSetArchivable("/environment/temperature-sea-level-degc");
67 fgTie("/environment/temperature-degc", _environment,
68 &FGEnvironment::get_temperature_degc,
69 &FGEnvironment::set_temperature_degc);
70 fgSetArchivable("/environment/temperature-degc");
71 fgTie("/environment/dewpoint-sea-level-degc", _environment,
72 &FGEnvironment::get_dewpoint_sea_level_degc,
73 &FGEnvironment::set_dewpoint_sea_level_degc);
74 fgSetArchivable("/environment/dewpoint-sea-level-degc");
75 fgTie("/environment/dewpoint-degc", _environment,
76 &FGEnvironment::get_dewpoint_degc,
77 &FGEnvironment::set_dewpoint_degc);
78 fgSetArchivable("/environment/dewpoint-degc");
79 fgTie("/environment/pressure-sea-level-inhg", _environment,
80 &FGEnvironment::get_pressure_sea_level_inhg,
81 &FGEnvironment::set_pressure_sea_level_inhg);
82 fgSetArchivable("/environment/pressure-sea-level-inhg");
83 fgTie("/environment/pressure-inhg", _environment,
84 &FGEnvironment::get_pressure_inhg,
85 &FGEnvironment::set_pressure_inhg);
86 fgSetArchivable("/environment/pressure-inhg");
87 fgTie("/environment/density-slugft3", _environment,
88 &FGEnvironment::get_density_slugft3); // read-only
89 fgSetArchivable("/environment/density-inhg");
90 fgTie("/environment/wind-from-heading-deg", _environment,
91 &FGEnvironment::get_wind_from_heading_deg,
92 &FGEnvironment::set_wind_from_heading_deg);
93 fgTie("/environment/wind-speed-kt", _environment,
94 &FGEnvironment::get_wind_speed_kt, &FGEnvironment::set_wind_speed_kt);
95 fgTie("/environment/wind-from-north-fps", _environment,
96 &FGEnvironment::get_wind_from_north_fps,
97 &FGEnvironment::set_wind_from_north_fps);
98 fgSetArchivable("/environment/wind-from-north-fps");
99 fgTie("/environment/wind-from-east-fps", _environment,
100 &FGEnvironment::get_wind_from_east_fps,
101 &FGEnvironment::set_wind_from_east_fps);
102 fgSetArchivable("/environment/wind-from-east-fps");
103 fgTie("/environment/wind-from-down-fps", _environment,
104 &FGEnvironment::get_wind_from_down_fps,
105 &FGEnvironment::set_wind_from_down_fps);
106 fgSetArchivable("/environment/wind-from-down-fps");
108 for (int i = 0; i < MAX_CLOUD_LAYERS; i++) {
110 sprintf(buf, "/environment/clouds/layer[%d]/span-m", i);
112 &FGEnvironmentMgr::get_cloud_layer_span_m,
113 &FGEnvironmentMgr::set_cloud_layer_span_m);
114 fgSetArchivable(buf);
115 sprintf(buf, "/environment/clouds/layer[%d]/elevation-ft", i);
117 &FGEnvironmentMgr::get_cloud_layer_elevation_ft,
118 &FGEnvironmentMgr::set_cloud_layer_elevation_ft);
119 fgSetArchivable(buf);
120 sprintf(buf, "/environment/clouds/layer[%d]/thickness-ft", i);
122 &FGEnvironmentMgr::get_cloud_layer_thickness_ft,
123 &FGEnvironmentMgr::set_cloud_layer_thickness_ft);
124 fgSetArchivable(buf);
125 sprintf(buf, "/environment/clouds/layer[%d]/transition-ft", i);
127 &FGEnvironmentMgr::get_cloud_layer_transition_ft,
128 &FGEnvironmentMgr::set_cloud_layer_transition_ft);
129 fgSetArchivable(buf);
130 sprintf(buf, "/environment/clouds/layer[%d]/type", i);
132 &FGEnvironmentMgr::get_cloud_layer_type,
133 &FGEnvironmentMgr::set_cloud_layer_type);
134 fgSetArchivable(buf);
139 FGEnvironmentMgr::unbind ()
141 fgUntie("/environment/visibility-m");
142 fgUntie("/environment/temperature-sea-level-degc");
143 fgUntie("/environment/temperature-degc");
144 fgUntie("/environment/dewpoint-sea-level-degc");
145 fgUntie("/environment/dewpoint-degc");
146 fgUntie("/environment/pressure-sea-level-inhg");
147 fgUntie("/environment/pressure-inhg");
148 fgUntie("/environment/density-inhg");
149 fgUntie("/environment/wind-from-north-fps");
150 fgUntie("/environment/wind-from-east-fps");
151 fgUntie("/environment/wind-from-down-fps");
152 for (int i = 0; i < MAX_CLOUD_LAYERS; i++) {
154 sprintf(buf, "/environment/clouds/layer[%d]/span-m", i);
156 sprintf(buf, "/environment/clouds/layer[%d]/elevation-ft", i);
158 sprintf(buf, "/environment/clouds/layer[%d]/thickness-ft", i);
160 sprintf(buf, "/environment/clouds/layer[%d]/transition-ft", i);
162 sprintf(buf, "/environment/clouds/layer[%d]/type", i);
168 FGEnvironmentMgr::update (double dt)
170 _controller->update(dt);
171 // FIXME: the FDMs should update themselves
172 current_aircraft.fdm_state
173 ->set_Velocities_Local_Airmass(_environment->get_wind_from_north_fps(),
174 _environment->get_wind_from_east_fps(),
175 _environment->get_wind_from_down_fps());
176 _environment->set_elevation_ft(fgGetDouble("/position/altitude-ft"));
182 FGEnvironmentMgr::getEnvironment () const
184 return *_environment;
188 FGEnvironmentMgr::getEnvironment (double lat, double lon, double alt) const
190 // Always returns the same environment
191 // for now; we'll make it interesting
193 FGEnvironment env = *_environment;
194 env.set_elevation_ft(alt);
199 FGEnvironmentMgr::_update_fdm () const
202 // Pass atmosphere on to FDM
203 // FIXME: have FDMs read properties directly.
205 if (fgGetBool("/environment/params/control-fdm-atmosphere")) {
206 // convert from Rankine to Celsius
208 ->set_Static_temperature((9.0/5.0)
209 * (_environment->get_temperature_degc() + 273.15));
210 // convert from inHG to PSF
212 ->set_Static_pressure(_environment->get_pressure_inhg() * 70.726566);
213 // keep in slugs/ft^3
215 ->set_Density(_environment->get_density_slugft3());
220 FGEnvironmentMgr::get_cloud_layer_span_m (int index) const
222 return thesky->get_cloud_layer(index)->getSpan_m();
226 FGEnvironmentMgr::set_cloud_layer_span_m (int index, double span_m)
228 thesky->get_cloud_layer(index)->setSpan_m(span_m);
232 FGEnvironmentMgr::get_cloud_layer_elevation_ft (int index) const
234 return thesky->get_cloud_layer(index)->getElevation_m() * SG_METER_TO_FEET;
238 FGEnvironmentMgr::set_cloud_layer_elevation_ft (int index, double elevation_ft)
240 thesky->get_cloud_layer(index)
241 ->setElevation_m(elevation_ft * SG_FEET_TO_METER);
245 FGEnvironmentMgr::get_cloud_layer_thickness_ft (int index) const
247 return thesky->get_cloud_layer(index)->getThickness_m() * SG_METER_TO_FEET;
251 FGEnvironmentMgr::set_cloud_layer_thickness_ft (int index, double thickness_ft)
253 thesky->get_cloud_layer(index)
254 ->setThickness_m(thickness_ft * SG_FEET_TO_METER);
258 FGEnvironmentMgr::get_cloud_layer_transition_ft (int index) const
260 return thesky->get_cloud_layer(index)->getTransition_m() * SG_METER_TO_FEET;
264 FGEnvironmentMgr::set_cloud_layer_transition_ft (int index,
265 double transition_ft)
267 thesky->get_cloud_layer(index)
268 ->setTransition_m(transition_ft * SG_FEET_TO_METER);
272 FGEnvironmentMgr::get_cloud_layer_type (int index) const
274 switch (thesky->get_cloud_layer(index)->getType()) {
275 case SGCloudLayer::SG_CLOUD_OVERCAST:
277 case SGCloudLayer::SG_CLOUD_MOSTLY_CLOUDY:
278 return "mostly-cloudy";
279 case SGCloudLayer::SG_CLOUD_MOSTLY_SUNNY:
280 return "mostly-sunny";
281 case SGCloudLayer::SG_CLOUD_CIRRUS:
283 case SGCloudLayer::SG_CLOUD_CLEAR:
291 FGEnvironmentMgr::set_cloud_layer_type (int index, const char * type_name)
293 SGCloudLayer::Type type;
294 if (!strcmp(type_name, "overcast"))
295 type = SGCloudLayer::SG_CLOUD_OVERCAST;
296 else if (!strcmp(type_name, "mostly-cloudy"))
297 type = SGCloudLayer::SG_CLOUD_MOSTLY_CLOUDY;
298 else if (!strcmp(type_name, "mostly-sunny"))
299 type = SGCloudLayer::SG_CLOUD_MOSTLY_SUNNY;
300 else if (!strcmp(type_name, "cirrus"))
301 type = SGCloudLayer::SG_CLOUD_CIRRUS;
302 else if (!strcmp(type_name, "clear"))
303 type = SGCloudLayer::SG_CLOUD_CLEAR;
305 SG_LOG(SG_INPUT, SG_WARN, "Unknown cloud type " << type_name);
306 type = SGCloudLayer::SG_CLOUD_CLEAR;
308 thesky->get_cloud_layer(index)->setType(type);
313 // end of environment-mgr.cxx