1 // scenery.cxx -- data structures and routines for managing scenery.
3 // Written by Curtis Olson, started May 1997.
5 // Copyright (C) 1997 Curtis L. Olson - http://www.flightgear.org/~curt
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.
31 #include <simgear/debug/logstream.hxx>
32 #include <simgear/scene/tgdb/userdata.hxx>
33 #include <simgear/scene/model/placementtrans.hxx>
35 #include <Main/fg_props.hxx>
37 #include "scenery.hxx"
40 // Scenery Management system
41 FGScenery::FGScenery() {
42 SG_LOG( SG_TERRAIN, SG_INFO, "Initializing scenery subsystem" );
44 center = Point3D(0.0);
49 // Initialize the Scenery Management system
50 FGScenery::~FGScenery() {
54 void FGScenery::init() {
56 scene_graph = new ssgRoot;
57 scene_graph->setName( "Scene" );
60 terrain_branch = new ssgBranch;
61 terrain_branch->setName( "Terrain" );
62 scene_graph->addKid( terrain_branch );
64 models_branch = new ssgBranch;
65 models_branch->setName( "Models" );
66 scene_graph->addKid( models_branch );
68 aircraft_branch = new ssgBranch;
69 aircraft_branch->setName( "Aircraft" );
70 scene_graph->addKid( aircraft_branch );
73 gnd_lights_root = new ssgRoot;
74 gnd_lights_root->setName( "Ground Lighting Root" );
76 vasi_lights_root = new ssgRoot;
77 vasi_lights_root->setName( "VASI/PAPI Lighting Root" );
79 rwy_lights_root = new ssgRoot;
80 rwy_lights_root->setName( "Runway Lighting Root" );
82 taxi_lights_root = new ssgRoot;
83 taxi_lights_root->setName( "Taxi Lighting Root" );
85 // Initials values needed by the draw-time object loader
86 sgUserDataInit( globals->get_model_lib(), globals->get_fg_root(),
87 globals->get_props(), globals->get_sim_time_sec() );
91 void FGScenery::update(double dt) {
95 void FGScenery::bind() {
96 fgTie("/environment/ground-elevation-m", this,
97 &FGScenery::get_cur_elev, &FGScenery::set_cur_elev);
101 void FGScenery::unbind() {
102 fgUntie("/environment/ground-elevation-m");
105 void FGScenery::set_center( Point3D p ) {
108 sgdSetVec3(c, p.x(), p.y(), p.z());
109 placement_list_type::iterator it = _placement_list.begin();
110 while (it != _placement_list.end()) {
111 (*it)->setSceneryCenter(c);
116 void FGScenery::register_placement_transform(ssgPlacementTransform *trans) {
118 _placement_list.push_back(trans);
120 sgdSetVec3(c, center.x(), center.y(), center.z());
121 trans->setSceneryCenter(c);
124 void FGScenery::unregister_placement_transform(ssgPlacementTransform *trans) {
125 placement_list_type::iterator it = _placement_list.begin();
126 while (it != _placement_list.end()) {
127 if ((*it) == trans) {
129 it = _placement_list.erase(it);