//
// You should have received a copy of the GNU General Public License
// along with this program; if not, write to the Free Software
-// Foundation, 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA
+// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
//
//
+#ifdef HAVE_CONFIG_H
+# include "config.h"
+#endif
+
#include <Main/fg_props.hxx>
#include <simgear/constants.h>
#include <simgear/scene/sky/cloudfield.hxx>
#include <simgear/scene/sky/newcloud.hxx>
#include <simgear/math/sg_random.h>
+#include <simgear/props/props_io.hxx>
+
#include <Main/globals.hxx>
#include <Airports/simple.hxx>
#include <Main/util.hxx>
FGClouds::FGClouds(FGEnvironmentCtrl * controller) :
- station_elevation_ft(0.0),
- _controller( controller ),
- snd_lightning(NULL),
- last_scenario( "none" ),
- last_env_config( new SGPropertyNode() ),
- last_env_clouds( new SGPropertyNode() )
+ snd_lightning(0),
+ _controller(controller),
+ station_elevation_ft(0.0),
+ clouds_3d_enabled(false),
+ last_scenario( "unset" ),
+ last_env_config( new SGPropertyNode ),
+ last_env_clouds( new SGPropertyNode )
{
update_event = 0;
- fgSetString("/environment/weather-scenario", last_scenario.c_str());
}
+
FGClouds::~FGClouds() {
}
int FGClouds::get_update_event(void) const {
return update_event;
}
+
void FGClouds::set_update_event(int count) {
update_event = count;
- build();
+ buildCloudLayers();
}
void FGClouds::init(void) {
if( snd_lightning == NULL ) {
- snd_lightning = new SGSoundSample(globals->get_fg_root().c_str(), "Sounds/thunder.wav", true);
+ snd_lightning = new SGSoundSample(globals->get_fg_root().c_str(), "Sounds/thunder.wav");
snd_lightning->set_max_dist(7000.0f);
snd_lightning->set_reference_dist(3000.0f);
SGSoundMgr *soundMgr = globals->get_soundmgr();
}
}
-SGNewCloud *FGClouds::buildCloud(SGPropertyNode *cloud_def_root, const string& name) {
- SGPropertyNode *cld_def=NULL;
+void FGClouds::buildCloud(SGPropertyNode *cloud_def_root, SGPropertyNode *box_def_root, const string& name, sgVec3 pos, SGCloudField *layer) {
+ SGPropertyNode *box_def=NULL;
+ SGPropertyNode *cld_def=NULL;
+
+ SGPath texture_root = globals->get_fg_root();
+ texture_root.append("Textures");
+ texture_root.append("Sky");
- cld_def = cloud_def_root->getChild(name.c_str());
+ box_def = box_def_root->getChild(name.c_str());
+
string base_name = name.substr(0,2);
- if( !cld_def ) {
+ if( !box_def ) {
if( name[2] == '-' ) {
- cld_def = cloud_def_root->getChild(base_name.c_str());
+ box_def = box_def_root->getChild(base_name.c_str());
}
- if( !cld_def )
- return NULL;
+ if( !box_def )
+ return;
}
- string familly = cld_def->getStringValue("familly", base_name.c_str());
- SGNewCloud *cld = new SGNewCloud(familly);
- for(int i = 0; i < cld_def->nChildren() ; i++) {
- SGPropertyNode *abox = cld_def->getChild(i);
+
+ for(int i = 0; i < box_def->nChildren() ; i++) {
+ SGPropertyNode *abox = box_def->getChild(i);
if( strcmp(abox->getName(), "box") == 0) {
- double x = abox->getDoubleValue("x");
- double y = abox->getDoubleValue("y");
- double z = abox->getDoubleValue("z");
- double size = abox->getDoubleValue("size");
- int type = abox->getIntValue("type", SGNewCloud::CLbox_standard);
- cld->addContainer(x, y, z, size, (SGNewCloud::CLbox_type) type);
+ double x = abox->getDoubleValue("x") + pos[0];
+ double y = abox->getDoubleValue("y") + pos[1];
+ double z = abox->getDoubleValue("z") + pos[2];
+ SGVec3f newpos = SGVec3f(x, z, y);
+
+ string type = abox->getStringValue("type", "cu-small");
+
+ cld_def = cloud_def_root->getChild(type.c_str());
+ if ( !cld_def ) return;
+
+ double min_width = cld_def->getDoubleValue("min-cloud-width-m", 500.0);
+ double max_width = cld_def->getDoubleValue("max-cloud-width-m", 1000.0);
+ double min_height = cld_def->getDoubleValue("min-cloud-height-m", min_width);
+ double max_height = cld_def->getDoubleValue("max-cloud-height-m", max_width);
+ double min_sprite_width = cld_def->getDoubleValue("min-sprite-width-m", 200.0);
+ double max_sprite_width = cld_def->getDoubleValue("max-sprite-width-m", min_sprite_width);
+ double min_sprite_height = cld_def->getDoubleValue("min-sprite-height-m", min_sprite_width);
+ double max_sprite_height = cld_def->getDoubleValue("max-sprite-height-m", max_sprite_width);
+ int num_sprites = cld_def->getIntValue("num-sprites", 20);
+ int num_textures_x = cld_def->getIntValue("num-textures-x", 1);
+ int num_textures_y = cld_def->getIntValue("num-textures-y", 1);
+ double bottom_shade = cld_def->getDoubleValue("bottom-shade", 1.0);
+ string texture = cld_def->getStringValue("texture", "cl_cumulus.rgb");
+
+ SGNewCloud *cld =
+ new SGNewCloud(type,
+ texture_root,
+ texture,
+ min_width,
+ max_width,
+ min_height,
+ max_height,
+ min_sprite_width,
+ max_sprite_width,
+ min_sprite_height,
+ max_sprite_height,
+ bottom_shade,
+ num_sprites,
+ num_textures_x,
+ num_textures_y);
+ layer->addCloud(newpos, cld);
}
}
- cld->genSprites();
- return cld;
}
-void FGClouds::buildLayer(SGCloudField *layer, const string& name, double alt, double coverage) {
+void FGClouds::buildLayer(int iLayer, const string& name, double alt, double coverage) {
struct {
string name;
double count;
} tCloudVariety[20];
int CloudVarietyCount = 0;
double totalCount = 0.0;
-
+
SGPropertyNode *cloud_def_root = fgGetNode("/environment/cloudlayers/clouds", false);
+ SGPropertyNode *box_def_root = fgGetNode("/environment/cloudlayers/boxes", false);
SGPropertyNode *layer_def_root = fgGetNode("/environment/cloudlayers/layers", false);
-
+ SGCloudField *layer = thesky->get_cloud_layer(iLayer)->get_layer3D();
layer->clear();
- // when we don't generate clouds the layer is rendered in 2D
- if( coverage == 0.0 )
- return;
- if( layer_def_root == NULL || cloud_def_root == NULL)
- return;
- if( name == "ci" || name == "sc" || name == "st")
+
+ // If we don't have the required properties, then render the cloud in 2D
+ if ((! clouds_3d_enabled) || coverage == 0.0 ||
+ layer_def_root == NULL || cloud_def_root == NULL || box_def_root == NULL)
+ {
+ thesky->get_cloud_layer(iLayer)->set_enable3dClouds(false);
return;
-
+ }
+
+ // If we can't find a definition for this cloud type, then render the cloud in 2D
SGPropertyNode *layer_def=NULL;
-
layer_def = layer_def_root->getChild(name.c_str());
if( !layer_def ) {
if( name[2] == '-' ) {
layer_def = layer_def_root->getChild(base_name.c_str());
}
if( !layer_def )
- return;
+ {
+ thesky->get_cloud_layer(iLayer)->set_enable3dClouds(false);
+ return;
+ }
}
+
+ // At this point, we know we've got some 3D clouds to generate.
+ thesky->get_cloud_layer(iLayer)->set_enable3dClouds(true);
double grid_x_size = layer_def->getDoubleValue("grid-x-size", 1000.0);
double grid_y_size = layer_def->getDoubleValue("grid-y-size", 1000.0);
do {
variety++;
snprintf(variety_name, sizeof(variety_name), cloud_name.c_str(), variety);
- } while( cloud_def_root->getChild(variety_name, 0, false) );
+ } while( box_def_root->getChild(variety_name, 0, false) );
totalCount += count;
if( CloudVarietyCount < 20 )
}
}
totalCount = 1.0 / totalCount;
- double currCoverage = 0.0;
-
+
for(double px = 0.0; px < SGCloudField::fieldSize; px += grid_x_size) {
for(double py = 0.0; py < SGCloudField::fieldSize; py += grid_y_size) {
- double x = px + grid_x_rand * (sg_random() - 0.5);
- double y = py + grid_y_rand * (sg_random() - 0.5);
- double z = alt + grid_z_rand * (sg_random() - 0.5);
- double choice = sg_random();
- currCoverage += coverage;
- if( currCoverage < 1.0 )
- continue;
- currCoverage -= 1.0;
-
- for(int i = 0; i < CloudVarietyCount ; i ++) {
- choice -= tCloudVariety[i].count * totalCount;
- if( choice <= 0.0 ) {
- SGNewCloud *cld = buildCloud(cloud_def_root, tCloudVariety[i].name);
- sgVec3 pos={x,z,y};
- if( cld )
- layer->addCloud(pos, cld);
-
- break;
- }
- }
+ double x = px + grid_x_rand * (sg_random() - 0.5) - (SGCloudField::fieldSize / 2.0);
+ double y = py + grid_y_rand * (sg_random() - 0.5) - (SGCloudField::fieldSize / 2.0);
+ double z = grid_z_rand * (sg_random() - 0.5);
+
+ if (sg_random() < coverage)
+ {
+ double choice = sg_random();
+
+ for(int i = 0; i < CloudVarietyCount ; i ++) {
+ choice -= tCloudVariety[i].count * totalCount;
+ if( choice <= 0.0 ) {
+ sgVec3 pos={x,z,y};
+
+ buildCloud(cloud_def_root,
+ box_def_root,
+ tCloudVariety[i].name,
+ pos,
+ layer);
+ break;
+ }
+ }
+ }
}
}
+ // Now we've built any clouds, enable them and set the density (coverage)
+ //layer->setCoverage(coverage);
+ //layer->applyCoverage();
+ thesky->get_cloud_layer(iLayer)->set_enable3dClouds(clouds_3d_enabled);
}
-// TODO:call this after real metar updates
-void FGClouds::buildMETAR(void) {
+void FGClouds::buildCloudLayers(void) {
SGPropertyNode *metar_root = fgGetNode("/environment", true);
- double wind_speed_kt = metar_root->getDoubleValue("wind-speed-kt");
+ //double wind_speed_kt = metar_root->getDoubleValue("wind-speed-kt");
double temperature_degc = metar_root->getDoubleValue("temperature-sea-level-degc");
double dewpoint_degc = metar_root->getDoubleValue("dewpoint-sea-level-degc");
double pressure_mb = metar_root->getDoubleValue("pressure-sea-level-inhg") * SG_INHG_TO_PA / 100.0;
double cumulus_base = 122.0 * (temperature_degc - dewpoint_degc);
double stratus_base = 100.0 * (100.0 - rel_humidity) * SG_FEET_TO_METER;
- bool cu_seen = false;
-
for(int iLayer = 0 ; iLayer < thesky->get_cloud_layer_count(); iLayer++) {
SGPropertyNode *cloud_root = fgGetNode("/environment/clouds/layer", iLayer, true);
double alt_ft = cloud_root->getDoubleValue("elevation-ft");
double alt_m = alt_ft * SG_FEET_TO_METER;
- string coverage = cloud_root->getStringValue("coverage");
+ string coverage = cloud_root->getStringValue("coverage");
+
+
double coverage_norm = 0.0;
if( coverage == "few" )
coverage_norm = 2.0/8.0; // <1-2
} else if( alt_ft > 6500 ) {
// layer_type = "as|ac|ns";
layer_type = "ac";
- if( pressure_mb < 1005.0 && coverage_norm >= 5.5 )
+ if( pressure_mb < 1005.0 && coverage_norm >= 0.5 )
layer_type = "ns";
} else {
// layer_type = "st|cu|cb|sc";
- // +/- 20% from stratus probable base
- if( stratus_base * 0.80 < alt_m && stratus_base * 1.40 > alt_m )
- layer_type = "st";
- // +/- 20% from cumulus probable base
- else if( cumulus_base * 0.80 < alt_m && cumulus_base * 1.20 > alt_m )
- layer_type = "cu";
- else {
+ if( cumulus_base * 0.80 < alt_m && cumulus_base * 1.20 > alt_m ) {
+ // +/- 20% from cumulus probable base
+ layer_type = "cu";
+ } else if( stratus_base * 0.80 < alt_m && stratus_base * 1.40 > alt_m ) {
+ // +/- 20% from stratus probable base
+ layer_type = "st";
+ } else {
// above formulae is far from perfect
- if ( alt_ft < 2000 )
+ if ( alt_ft < 2000 )
layer_type = "st";
else if( alt_ft < 4500 )
layer_type = "cu";
layer_type = "sc";
}
}
-
- SGCloudField *layer3D = thesky->get_cloud_layer(iLayer)->get_layer3D();
- buildLayer(layer3D, layer_type, alt_m, coverage_norm);
+
+ buildLayer(iLayer, layer_type, alt_m, coverage_norm);
}
}
// copy from FGMetarEnvironmentCtrl until better
void
-FGClouds::update_metar_properties( FGMetar *m )
+FGClouds::update_metar_properties( const FGMetar *m )
{
int i;
- double d;
- char s[128];
fgSetString("/environment/metar/station-id", m->getId());
fgSetDouble("/environment/metar/min-visibility-m",
fgSetDouble("/environment/metar/max-visibility-m",
m->getMaxVisibility().getVisibility_m() );
+ SGPropertyNode *metar = fgGetNode("/environment/metar", true);
const SGMetarVisibility *dirvis = m->getDirVisibility();
- for (i = 0; i < 8; i++, dirvis++) {
- const char *min = "/environment/metar/visibility[%d]/min-m";
- const char *max = "/environment/metar/visibility[%d]/max-m";
- d = dirvis->getVisibility_m();
+ for (i = 0; i < 8; i++, dirvis++) {
+ SGPropertyNode *vis = metar->getChild("visibility", i, true);
+ double v = dirvis->getVisibility_m();
- snprintf(s, 128, min, i);
- fgSetDouble(s, d);
- snprintf(s, 128, max, i);
- fgSetDouble(s, d);
+ vis->setDoubleValue("min-m", v);
+ vis->setDoubleValue("max-m", v);
}
fgSetInt("/environment/metar/base-wind-range-from",
m->getPressure_inHg() );
vector<SGMetarCloud> cv = m->getClouds();
- vector<SGMetarCloud>::const_iterator cloud;
-
- const char *cl = "/environment/clouds/layer[%i]";
- for (i = 0, cloud = cv.begin(); cloud != cv.end(); cloud++, i++) {
- const char *coverage_string[5] =
- { "clear", "few", "scattered", "broken", "overcast" };
- const double thickness[5] = { 0, 65, 600,750, 1000};
- int q;
-
- snprintf(s, 128, cl, i);
- strncat(s, "/coverage", 128);
- q = cloud->getCoverage();
- fgSetString(s, coverage_string[q] );
-
- snprintf(s, 128, cl, i);
- strncat(s, "/elevation-ft", 128);
- fgSetDouble(s, cloud->getAltitude_ft() + station_elevation_ft);
-
- snprintf(s, 128, cl, i);
- strncat(s, "/thickness-ft", 128);
- fgSetDouble(s, thickness[q]);
-
- snprintf(s, 128, cl, i);
- strncat(s, "/span-m", 128);
- fgSetDouble(s, 40000.0);
- }
-
- for (; i < FGEnvironmentMgr::MAX_CLOUD_LAYERS; i++) {
- snprintf(s, 128, cl, i);
- strncat(s, "/coverage", 128);
- fgSetString(s, "clear");
-
- snprintf(s, 128, cl, i);
- strncat(s, "/elevation-ft", 128);
- fgSetDouble(s, -9999);
-
- snprintf(s, 128, cl, i);
- strncat(s, "/thickness-ft", 128);
- fgSetDouble(s, 0);
-
- snprintf(s, 128, cl, i);
- strncat(s, "/span-m", 128);
- fgSetDouble(s, 40000.0);
+ vector<SGMetarCloud>::const_iterator cloud, cloud_end = cv.end();
+
+ // Load into both the METAR and environment properties to stop interpolation
+ SGPropertyNode *metar_clouds = fgGetNode("/environment/metar/clouds", true);
+ SGPropertyNode *clouds = fgGetNode("/environment/clouds", true);
+
+ for (i = 0, cloud = cv.begin(); i < FGEnvironmentMgr::MAX_CLOUD_LAYERS; i++) {
+ const char *coverage_string[5] = { "clear", "few", "scattered", "broken", "overcast" };
+ const double thickness_value[5] = { 0, 65, 600, 750, 1000 };
+
+ const char *coverage = "clear";
+ double elevation = -9999.0;
+ double thickness = 0.0;
+ const double span = 40000.0;
+
+ if (cloud != cloud_end) {
+ int c = cloud->getCoverage();
+ coverage = coverage_string[c];
+ elevation = cloud->getAltitude_ft() + station_elevation_ft;
+ thickness = thickness_value[c];
+ ++cloud;
+ }
+
+ SGPropertyNode *layer;
+ layer = metar_clouds->getChild("layer", i, true);
+ layer->setStringValue("coverage", coverage);
+ layer->setDoubleValue("elevation-ft", elevation);
+ layer->setDoubleValue("thickness-ft", thickness);
+ layer->setDoubleValue("span-m", span);
+
+ layer = clouds->getChild("layer", i, true);
+ layer->setStringValue("coverage", coverage);
+ layer->setDoubleValue("elevation-ft", elevation);
+ layer->setDoubleValue("thickness-ft", thickness);
+ layer->setDoubleValue("span-m", span);
}
fgSetDouble("/environment/metar/rain-norm", m->getRain());
fgGetDouble("/environment/metar/pressure-inhg") );
}
-
void FGClouds::setLayer( int iLayer, float alt_ft, const string& coverage, const string& layer_type ) {
double coverage_norm = 0.0;
if( coverage == "few" )
else if( coverage == "overcast" )
coverage_norm = 8.0/8.0; // 8
- SGCloudField *layer3D = thesky->get_cloud_layer(iLayer)->get_layer3D();
- buildLayer(layer3D, layer_type, station_elevation_ft + alt_ft * SG_FEET_TO_METER, coverage_norm);
+ buildLayer(iLayer, layer_type, station_elevation_ft + alt_ft * SG_FEET_TO_METER, coverage_norm);
}
void FGClouds::buildScenario( const string& scenario ) {
string fakeMetar="";
string station = fgGetString("/environment/metar/station-id", "XXXX");
-
+
// fetch station elevation if exists
- if( station == "XXXX" )
- station_elevation_ft = fgGetDouble("/position/ground-elev-m", 0.0);
- else {
- const FGAirport* a = globals->get_airports()->search( station );
- station_elevation_ft = (a ? a->getElevation() : 0.0);
- }
+ if( station == "XXXX" )
+ station_elevation_ft = fgGetDouble("/position/ground-elev-m", 0.0) * SG_METER_TO_FEET;
+ else {
+ const FGAirport* a = FGAirport::findByIdent(station);
+ station_elevation_ft = (a ? a->getElevation() : 0.0);
+ }
for(int iLayer = 0 ; iLayer < thesky->get_cloud_layer_count(); iLayer++) {
- thesky->get_cloud_layer(iLayer)->get_layer3D()->clear();
+ thesky->get_cloud_layer(iLayer)
+ ->setCoverage(SGCloudLayer::SG_CLOUD_CLEAR);
+ thesky->get_cloud_layer(iLayer)->get_layer3D()->clear();
}
station += " 011000Z ";
if( scenario == "Fair weather" ) {
- fakeMetar = "15003KT 12SM SCT033 FEW200 20/08 Q1015 NOSIG";
- setLayer(0, 3300.0, "scattered", "cu");
- } else if( scenario == "Thunderstorm" ) {
+ fakeMetar = "15003KT 12SM SCT041 FEW200 20/08 Q1015 NOSIG";
+ //setLayer(0, 3300.0, "scattered", "cu");
+ } else if( scenario == "Thunderstorm" ) {
fakeMetar = "15012KT 08SM TSRA SCT040 BKN070 20/12 Q0995";
setLayer(0, 4000.0, "scattered", "cb");
setLayer(1, 7000.0, "scattered", "ns");
update_metar_properties( m );
update_env_config();
// propagate aloft tables
- _controller->reinit();
+ //_controller->reinit();
fgSetString("/environment/metar/last-metar", m->getData());
- // TODO:desactivate real metar updates
+ // TODO:de-activate real metar updates
if( scenario == "Fair weather" ) {
fgSetString("/environment/clouds/layer[1]/coverage", "cirrus");
}
}
+void FGClouds::set_scenario(const char * sc) {
-void FGClouds::build(void) {
- string scenario = fgGetString("/environment/weather-scenario", "METAR");
-
- if( scenario == last_scenario)
- return;
- if( last_scenario == "none" ) {
+ scenario = string(sc);
+
+// if(!rebuild_required && (scenario == last_scenario))
+// return;
+
+ if( last_scenario == "none" ) {
// save clouds and weather conditions
- SGPropertyNode *param = fgGetNode("/environment/config", true);
- copyProperties( param, last_env_config );
- param = fgGetNode("/environment/clouds", true);
- copyProperties( param, last_env_clouds );
- }
- if( scenario == "METAR" ) {
- string realMetar = fgGetString("/environment/metar/real-metar", "");
- if( realMetar != "" ) {
- fgSetString("/environment/metar/last-metar", realMetar.c_str());
- FGMetar *m = new FGMetar( realMetar );
- update_metar_properties( m );
- update_env_config();
+ SGPropertyNode *param = fgGetNode("/environment/config", true);
+ copyProperties( param, last_env_config );
+ param = fgGetNode("/environment/clouds", true);
+ copyProperties( param, last_env_clouds );
+ }
+
+ if( scenario == "METAR" ) {
+ // needed here to compute station_elevation_ft
+ buildScenario( scenario );
+ string realMetar = fgGetString("/environment/metar/real-metar", "");
+
+ if( realMetar != "" ) {
+ fgSetString("/environment/metar/last-metar", realMetar.c_str());
+ FGMetar *m = new FGMetar( realMetar );
+ update_metar_properties( m );
+ update_env_config();
// propagate aloft tables
- _controller->reinit();
- }
- buildMETAR();
- }
- else if( scenario == "none" ) {
+ _controller->reinit();
+ buildCloudLayers();
+ }
+ }
+ else if( scenario == "none" ) {
// restore clouds and weather conditions
- SGPropertyNode *param = fgGetNode("/environment/config", true);
- copyProperties( last_env_config, param );
- param = fgGetNode("/environment/clouds", true);
- copyProperties( last_env_clouds, param );
- fgSetDouble("/environment/metar/rain-norm", 0.0);
- fgSetDouble("/environment/metar/snow-norm", 0.0);
+ SGPropertyNode *param = fgGetNode("/environment/config", true);
+ copyProperties( last_env_config, param );
+ param = fgGetNode("/environment/clouds", true);
+ copyProperties( last_env_clouds, param );
+ fgSetDouble("/environment/metar/rain-norm", 0.0);
+ fgSetDouble("/environment/metar/snow-norm", 0.0);
// update_env_config();
// propagate aloft tables
- _controller->reinit();
- buildMETAR();
+ _controller->reinit();
+ buildCloudLayers();
+ }
+ else {
+ buildScenario( scenario );
+ _controller->reinit();
+ buildCloudLayers();
+ }
+
+ last_scenario = scenario;
+
+ if( snd_lightning == NULL )
+ init();
+}
+
+const char * FGClouds::get_scenario(void) const
+{
+ return scenario.c_str();
+}
+
+void FGClouds::set_3dClouds(bool enable)
+{
+ if (enable != clouds_3d_enabled) {
+ clouds_3d_enabled = enable;
+ buildCloudLayers();
}
- else
- buildScenario( scenario );
- last_scenario = scenario;
+}
- // ...
- if( snd_lightning == NULL )
- init();
+bool FGClouds::get_3dClouds() const {
+ return clouds_3d_enabled;
}
+
projects / flightgear.git / blobdiff