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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
27 #include <simgear/debug/logstream.hxx>
28 #include <simgear/scene/sky/sky.hxx>
29 #include <simgear/environment/visual_enviro.hxx>
31 #include <Main/main.hxx>
32 #include <Main/fg_props.hxx>
33 #include <Aircraft/aircraft.hxx>
35 #include "environment.hxx"
36 #include "environment_ctrl.hxx"
37 #include "environment_mgr.hxx"
38 #include "fgclouds.hxx"
45 FGEnvironmentMgr::FGEnvironmentMgr ()
46 : _environment(new FGEnvironment)
49 if (fgGetBool("/environment/params/real-world-weather-fetch") == true)
50 _controller = new FGMetarEnvironmentCtrl;
52 _controller = new FGInterpolateEnvironmentCtrl;
54 _controller->setEnvironment(_environment);
55 set_subsystem("controller", _controller, 0.5);
56 fgClouds = new FGClouds( _controller );
59 FGEnvironmentMgr::~FGEnvironmentMgr ()
62 remove_subsystem("controller");
68 FGEnvironmentMgr::init ()
70 SG_LOG( SG_GENERAL, SG_INFO, "Initializing environment subsystem");
71 SGSubsystemGroup::init();
76 FGEnvironmentMgr::reinit ()
78 SG_LOG( SG_GENERAL, SG_INFO, "Reinitializing environment subsystem");
79 SGSubsystemGroup::reinit();
84 FGEnvironmentMgr::bind ()
86 fgTie("/environment/visibility-m", _environment,
87 &FGEnvironment::get_visibility_m, &FGEnvironment::set_visibility_m);
88 fgSetArchivable("/environment/visibility-m");
89 fgTie("/environment/temperature-sea-level-degc", _environment,
90 &FGEnvironment::get_temperature_sea_level_degc,
91 &FGEnvironment::set_temperature_sea_level_degc);
92 fgSetArchivable("/environment/temperature-sea-level-degc");
93 fgTie("/environment/temperature-degc", _environment,
94 &FGEnvironment::get_temperature_degc); // FIXME: read-only for now
95 fgTie("/environment/temperature-degf", _environment,
96 &FGEnvironment::get_temperature_degf); // FIXME: read-only for now
97 fgTie("/environment/dewpoint-sea-level-degc", _environment,
98 &FGEnvironment::get_dewpoint_sea_level_degc,
99 &FGEnvironment::set_dewpoint_sea_level_degc);
100 fgSetArchivable("/environment/dewpoint-sea-level-degc");
101 fgTie("/environment/dewpoint-degc", _environment,
102 &FGEnvironment::get_dewpoint_degc); // FIXME: read-only for now
103 fgTie("/environment/pressure-sea-level-inhg", _environment,
104 &FGEnvironment::get_pressure_sea_level_inhg,
105 &FGEnvironment::set_pressure_sea_level_inhg);
106 fgSetArchivable("/environment/pressure-sea-level-inhg");
107 fgTie("/environment/pressure-inhg", _environment,
108 &FGEnvironment::get_pressure_inhg); // FIXME: read-only for now
109 fgTie("/environment/density-slugft3", _environment,
110 &FGEnvironment::get_density_slugft3); // read-only
111 fgTie("/environment/wind-from-heading-deg", _environment,
112 &FGEnvironment::get_wind_from_heading_deg,
113 &FGEnvironment::set_wind_from_heading_deg);
114 fgTie("/environment/wind-speed-kt", _environment,
115 &FGEnvironment::get_wind_speed_kt, &FGEnvironment::set_wind_speed_kt);
116 fgTie("/environment/wind-from-north-fps", _environment,
117 &FGEnvironment::get_wind_from_north_fps,
118 &FGEnvironment::set_wind_from_north_fps);
119 fgSetArchivable("/environment/wind-from-north-fps");
120 fgTie("/environment/wind-from-east-fps", _environment,
121 &FGEnvironment::get_wind_from_east_fps,
122 &FGEnvironment::set_wind_from_east_fps);
123 fgSetArchivable("/environment/wind-from-east-fps");
124 fgTie("/environment/wind-from-down-fps", _environment,
125 &FGEnvironment::get_wind_from_down_fps,
126 &FGEnvironment::set_wind_from_down_fps);
127 fgSetArchivable("/environment/wind-from-down-fps");
128 fgTie("/environment/turbulence/magnitude-norm", _environment,
129 &FGEnvironment::get_turbulence_magnitude_norm,
130 &FGEnvironment::set_turbulence_magnitude_norm);
131 fgSetArchivable("/environment/turbulence/magnitude-norm");
132 fgTie("/environment/turbulence/rate-hz", _environment,
133 &FGEnvironment::get_turbulence_rate_hz,
134 &FGEnvironment::set_turbulence_rate_hz);
135 fgSetArchivable("/environment/turbulence/rate-hz");
137 for (int i = 0; i < MAX_CLOUD_LAYERS; i++) {
139 sprintf(buf, "/environment/clouds/layer[%d]/span-m", i);
141 &FGEnvironmentMgr::get_cloud_layer_span_m,
142 &FGEnvironmentMgr::set_cloud_layer_span_m);
143 fgSetArchivable(buf);
144 sprintf(buf, "/environment/clouds/layer[%d]/elevation-ft", i);
146 &FGEnvironmentMgr::get_cloud_layer_elevation_ft,
147 &FGEnvironmentMgr::set_cloud_layer_elevation_ft);
148 fgSetArchivable(buf);
149 sprintf(buf, "/environment/clouds/layer[%d]/thickness-ft", i);
151 &FGEnvironmentMgr::get_cloud_layer_thickness_ft,
152 &FGEnvironmentMgr::set_cloud_layer_thickness_ft);
153 fgSetArchivable(buf);
154 sprintf(buf, "/environment/clouds/layer[%d]/transition-ft", i);
156 &FGEnvironmentMgr::get_cloud_layer_transition_ft,
157 &FGEnvironmentMgr::set_cloud_layer_transition_ft);
158 fgSetArchivable(buf);
159 sprintf(buf, "/environment/clouds/layer[%d]/coverage", i);
161 &FGEnvironmentMgr::get_cloud_layer_coverage,
162 &FGEnvironmentMgr::set_cloud_layer_coverage);
163 fgSetArchivable(buf);
165 fgTie("/sim/rendering/clouds3d-enable", &sgEnviro,
166 &SGEnviro::get_clouds_enable_state,
167 &SGEnviro::set_clouds_enable_state);
168 fgTie("/sim/rendering/clouds3d-vis-range", &sgEnviro,
169 &SGEnviro::get_clouds_visibility,
170 &SGEnviro::set_clouds_visibility);
171 fgTie("/sim/rendering/clouds3d-density", &sgEnviro,
172 &SGEnviro::get_clouds_density,
173 &SGEnviro::set_clouds_density);
174 fgTie("/sim/rendering/clouds3d-cache-size", &sgEnviro,
175 &SGEnviro::get_clouds_CacheSize,
176 &SGEnviro::set_clouds_CacheSize);
177 fgTie("/sim/rendering/clouds3d-cache-resolution", &sgEnviro,
178 &SGEnviro::get_CacheResolution,
179 &SGEnviro::set_CacheResolution);
180 fgTie("/sim/rendering/precipitation-enable", &sgEnviro,
181 &SGEnviro::get_precipitation_enable_state,
182 &SGEnviro::set_precipitation_enable_state);
183 fgTie("/environment/rebuild_layers", fgClouds,
184 &FGClouds::get_update_event,
185 &FGClouds::set_update_event);
186 fgTie("/sim/rendering/lightning-enable", &sgEnviro,
187 &SGEnviro::get_lightning_enable_state,
188 &SGEnviro::set_lightning_enable_state);
189 fgTie("/environment/turbulence/use-cloud-turbulence", &sgEnviro,
190 &SGEnviro::get_turbulence_enable_state,
191 &SGEnviro::set_turbulence_enable_state);
192 sgEnviro.config(fgGetNode("/sim/rendering/precipitation"));
196 FGEnvironmentMgr::unbind ()
198 fgUntie("/environment/visibility-m");
199 fgUntie("/environment/temperature-sea-level-degc");
200 fgUntie("/environment/temperature-degc");
201 fgUntie("/environment/dewpoint-sea-level-degc");
202 fgUntie("/environment/dewpoint-degc");
203 fgUntie("/environment/pressure-sea-level-inhg");
204 fgUntie("/environment/pressure-inhg");
205 fgUntie("/environment/density-inhg");
206 fgUntie("/environment/wind-from-north-fps");
207 fgUntie("/environment/wind-from-east-fps");
208 fgUntie("/environment/wind-from-down-fps");
209 for (int i = 0; i < MAX_CLOUD_LAYERS; i++) {
211 sprintf(buf, "/environment/clouds/layer[%d]/span-m", i);
213 sprintf(buf, "/environment/clouds/layer[%d]/elevation-ft", i);
215 sprintf(buf, "/environment/clouds/layer[%d]/thickness-ft", i);
217 sprintf(buf, "/environment/clouds/layer[%d]/transition-ft", i);
219 sprintf(buf, "/environment/clouds/layer[%d]/type", i);
222 fgUntie("/sim/rendering/clouds3d-enable");
223 fgUntie("/sim/rendering/clouds3d-vis-range");
224 fgUntie("/sim/rendering/clouds3d-density");
225 fgUntie("/sim/rendering/clouds3d-cache-size");
226 fgUntie("/sim/rendering/clouds3d-cache-resolution");
227 fgUntie("/sim/rendering/precipitation-enable");
228 fgUntie("/environment/rebuild_layers");
229 fgUntie("/sim/rendering/lightning-enable");
230 fgUntie("/environment/turbulence/use-cloud-turbulence");
234 FGEnvironmentMgr::update (double dt)
236 SGSubsystemGroup::update(dt);
238 // FIXME: the FDMs should update themselves
239 current_aircraft.fdm_state
240 ->set_Velocities_Local_Airmass(_environment->get_wind_from_north_fps(),
241 _environment->get_wind_from_east_fps(),
242 _environment->get_wind_from_down_fps());
243 _environment->set_elevation_ft(fgGetDouble("/position/altitude-ft"));
249 FGEnvironmentMgr::getEnvironment () const
251 return *_environment;
255 FGEnvironmentMgr::getEnvironment (double lat, double lon, double alt) const
257 // Always returns the same environment
258 // for now; we'll make it interesting
260 FGEnvironment env = *_environment;
261 env.set_elevation_ft(alt);
266 FGEnvironmentMgr::_update_fdm () const
269 // Pass atmosphere on to FDM
270 // FIXME: have FDMs read properties directly.
272 if (fgGetBool("/environment/params/control-fdm-atmosphere")) {
273 // convert from Rankine to Celsius
275 ->set_Static_temperature((9.0/5.0)
276 * (_environment->get_temperature_degc() + 273.15));
277 // convert from inHG to PSF
279 ->set_Static_pressure(_environment->get_pressure_inhg() * 70.726566);
280 // keep in slugs/ft^3
282 ->set_Density(_environment->get_density_slugft3());
287 FGEnvironmentMgr::get_cloud_layer_span_m (int index) const
289 return thesky->get_cloud_layer(index)->getSpan_m();
293 FGEnvironmentMgr::set_cloud_layer_span_m (int index, double span_m)
295 thesky->get_cloud_layer(index)->setSpan_m(span_m);
299 FGEnvironmentMgr::get_cloud_layer_elevation_ft (int index) const
301 return thesky->get_cloud_layer(index)->getElevation_m() * SG_METER_TO_FEET;
305 FGEnvironmentMgr::set_cloud_layer_elevation_ft (int index, double elevation_ft)
307 FGEnvironment env = *_environment;
308 env.set_elevation_ft(elevation_ft);
310 thesky->get_cloud_layer(index)
311 ->setElevation_m(elevation_ft * SG_FEET_TO_METER);
313 thesky->get_cloud_layer(index)
314 ->setSpeed(env.get_wind_speed_kt() * 0.5151); // 1 kt = 0.5151 m/s
316 thesky->get_cloud_layer(index)
317 ->setDirection(env.get_wind_from_heading_deg());
321 FGEnvironmentMgr::get_cloud_layer_thickness_ft (int index) const
323 return thesky->get_cloud_layer(index)->getThickness_m() * SG_METER_TO_FEET;
327 FGEnvironmentMgr::set_cloud_layer_thickness_ft (int index, double thickness_ft)
329 thesky->get_cloud_layer(index)
330 ->setThickness_m(thickness_ft * SG_FEET_TO_METER);
334 FGEnvironmentMgr::get_cloud_layer_transition_ft (int index) const
336 return thesky->get_cloud_layer(index)->getTransition_m() * SG_METER_TO_FEET;
340 FGEnvironmentMgr::set_cloud_layer_transition_ft (int index,
341 double transition_ft)
343 thesky->get_cloud_layer(index)
344 ->setTransition_m(transition_ft * SG_FEET_TO_METER);
348 FGEnvironmentMgr::get_cloud_layer_coverage (int index) const
350 switch (thesky->get_cloud_layer(index)->getCoverage()) {
351 case SGCloudLayer::SG_CLOUD_OVERCAST:
353 case SGCloudLayer::SG_CLOUD_BROKEN:
355 case SGCloudLayer::SG_CLOUD_SCATTERED:
357 case SGCloudLayer::SG_CLOUD_FEW:
359 case SGCloudLayer::SG_CLOUD_CIRRUS:
361 case SGCloudLayer::SG_CLOUD_CLEAR:
369 FGEnvironmentMgr::set_cloud_layer_coverage (int index,
370 const char * coverage_name)
372 SGCloudLayer::Coverage coverage;
373 if (!strcmp(coverage_name, "overcast"))
374 coverage = SGCloudLayer::SG_CLOUD_OVERCAST;
375 else if (!strcmp(coverage_name, "broken"))
376 coverage = SGCloudLayer::SG_CLOUD_BROKEN;
377 else if (!strcmp(coverage_name, "scattered"))
378 coverage = SGCloudLayer::SG_CLOUD_SCATTERED;
379 else if (!strcmp(coverage_name, "few"))
380 coverage = SGCloudLayer::SG_CLOUD_FEW;
381 else if (!strcmp(coverage_name, "cirrus"))
382 coverage = SGCloudLayer::SG_CLOUD_CIRRUS;
383 else if (!strcmp(coverage_name, "clear"))
384 coverage = SGCloudLayer::SG_CLOUD_CLEAR;
386 SG_LOG(SG_INPUT, SG_WARN, "Unknown cloud type " << coverage_name);
387 coverage = SGCloudLayer::SG_CLOUD_CLEAR;
389 thesky->get_cloud_layer(index)->setCoverage(coverage);
394 // end of environment-mgr.cxx