1 // submodel.cxx - models a releasable submodel.
2 // Written by Dave Culp, started Aug 2004
4 // This file is in the Public Domain and comes with no warranty.
6 #include "submodel.hxx"
8 #include <simgear/structure/exception.hxx>
9 #include <simgear/misc/sg_path.hxx>
11 #include <Main/fg_props.hxx>
12 #include <Main/util.hxx>
13 #include <AIModel/AIManager.hxx>
16 SubmodelSystem::SubmodelSystem ()
18 x_offset = y_offset = 0.0;
24 SubmodelSystem::~SubmodelSystem ()
29 SubmodelSystem::init ()
32 _serviceable_node = fgGetNode("/sim/systems/submodels/serviceable", true);
34 _user_lat_node = fgGetNode("/position/latitude-deg", true);
35 _user_lon_node = fgGetNode("/position/longitude-deg", true);
36 _user_alt_node = fgGetNode("/position/altitude-ft", true);
38 _user_heading_node = fgGetNode("/orientation/heading-deg", true);
39 _user_pitch_node = fgGetNode("/orientation/pitch-deg", true);
40 _user_roll_node = fgGetNode("/orientation/roll-deg", true);
41 _user_yaw_node = fgGetNode("/orientation/yaw-deg", true);
43 _user_speed_node = fgGetNode("/velocities/uBody-fps", true);
45 _user_wind_from_east_node = fgGetNode("/environment/wind-from-east-fps",true);
46 _user_wind_from_north_node = fgGetNode("/environment/wind-from-north-fps",true);
48 ai = (FGAIManager*)globals->get_subsystem("ai_model");
52 SubmodelSystem::bind ()
57 SubmodelSystem::unbind ()
59 submodel_iterator = submodels.begin();
60 while(submodel_iterator != submodels.end()) {
61 (*submodel_iterator)->prop->untie("count");
67 SubmodelSystem::update (double dt)
69 if (!(_serviceable_node->getBoolValue())) return;
71 submodel_iterator = submodels.begin();
72 while(submodel_iterator != submodels.end()) {
74 if ((*submodel_iterator)->trigger->getBoolValue()) {
75 if ((*submodel_iterator)->count != 0) {
76 release( (*submodel_iterator), dt);
85 SubmodelSystem::release (submodel* sm, double dt)
88 if (sm->timer < sm->delay) return false;
91 // calculate submodel's initial conditions in world-coordinates
94 //cout << "Creating a submodel." << endl;
95 int rval = ai->createBallistic( sm->model, IC.lat, IC.lon, IC.alt, IC.azimuth,
96 IC.elevation, IC.speed,
97 sm->drag_area, sm->life,
99 IC.wind_from_east, IC.wind_from_north, sm->wind);
100 //cout << "Submodel created." << endl;
101 if (sm->count > 0) (sm->count)--;
107 SubmodelSystem::load ()
110 SGPropertyNode *path = fgGetNode("/sim/systems/submodels/path");
114 SGPath config( globals->get_fg_root() );
115 config.append( path->getStringValue() );
118 readProperties(config.str(), &root);
119 } catch (const sg_exception &e) {
120 SG_LOG(SG_GENERAL, SG_ALERT,
121 "Unable to read submodels file: ");
122 cout << config.str() << endl;
127 int count = root.nChildren();
128 for (i = 0; i < count; i++) {
129 // cout << "Reading submodel " << i << endl;
130 SGPropertyNode *prop;
131 submodel* sm = new submodel;
132 SGPropertyNode * entry_node = root.getChild(i);
133 sm->trigger = fgGetNode(entry_node->getStringValue("trigger", "none"), true);
134 sm->name = entry_node->getStringValue("name", "none_defined");
135 sm->model = entry_node->getStringValue("model", "Models/Geometry/rocket.ac");
136 sm->speed = entry_node->getDoubleValue("speed", 0.0);
137 sm->repeat = entry_node->getBoolValue ("repeat", false);
138 sm->delay = entry_node->getDoubleValue("delay", 0.25);
139 sm->count = entry_node->getIntValue ("count", 1);
140 sm->slaved = entry_node->getBoolValue ("slaved", false);
141 sm->x_offset = entry_node->getDoubleValue("x-offset", 0.0);
142 sm->y_offset = entry_node->getDoubleValue("y_offset", 0.0);
143 sm->z_offset = entry_node->getDoubleValue("z-offset", 0.0);
144 sm->yaw_offset = entry_node->getDoubleValue("yaw-offset", 0.0);
145 sm->pitch_offset = entry_node->getDoubleValue("pitch-offset", 0.0);
146 sm->drag_area = entry_node->getDoubleValue("eda", 0.007);
147 sm->life = entry_node->getDoubleValue("life", 900.0);
148 sm->buoyancy = entry_node->getDoubleValue("buoyancy", 0);
149 sm->wind = entry_node->getBoolValue ("wind", false);
151 sm->trigger->setBoolValue(false);
152 sm->timer = sm->delay;
154 sm->prop = fgGetNode("/systems/submodels/submodel", i, true);
155 sm->prop->tie("count", SGRawValuePointer<int>(&(sm->count)));
157 submodels.push_back( sm );
160 submodel_iterator = submodels.begin();
161 // cout << submodels.size() << " submodels read." << endl;
166 SubmodelSystem::transform( submodel* sm)
168 IC.lat = _user_lat_node->getDoubleValue();
169 IC.lon = _user_lon_node->getDoubleValue();
170 IC.alt = _user_alt_node->getDoubleValue();
171 IC.azimuth = _user_heading_node->getDoubleValue() + sm->yaw_offset;
172 IC.elevation = _user_pitch_node->getDoubleValue() + sm->pitch_offset;
173 IC.speed = _user_speed_node->getDoubleValue() + sm->speed;
174 IC.wind_from_east = _user_wind_from_east_node->getDoubleValue();
175 IC.wind_from_north = _user_wind_from_north_node->getDoubleValue();
176 // IC.wind_from_east = 4;
177 // IC.wind_from_north = 5;
181 // end of submodel.cxx