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 - curt@infoplane.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.
31 #include <simgear/debug/logstream.hxx>
32 #include <simgear/scene/tgdb/userdata.hxx>
34 #include <Main/fg_props.hxx>
36 #include "scenery.hxx"
39 // Scenery Management system
40 FGScenery::FGScenery() {
41 SG_LOG( SG_TERRAIN, SG_INFO, "Initializing scenery subsystem" );
43 center = Point3D(0.0);
48 // Initialize the Scenery Management system
49 FGScenery::~FGScenery() {
53 void FGScenery::init() {
55 scene_graph = new ssgRoot;
56 scene_graph->setName( "Scene" );
59 terrain_branch = new ssgBranch;
60 terrain_branch->setName( "Terrain" );
61 scene_graph->addKid( terrain_branch );
63 models_branch = new ssgBranch;
64 models_branch->setName( "Models" );
65 scene_graph->addKid( models_branch );
67 aircraft_branch = new ssgBranch;
68 aircraft_branch->setName( "Aircraft" );
69 scene_graph->addKid( aircraft_branch );
72 gnd_lights_root = new ssgRoot;
73 gnd_lights_root->setName( "Ground Lighting Root" );
75 rwy_lights_root = new ssgRoot;
76 rwy_lights_root->setName( "Runway Lighting Root" );
78 taxi_lights_root = new ssgRoot;
79 taxi_lights_root->setName( "Taxi Lighting Root" );
81 // Initials values needed by the draw-time object loader
82 sgUserDataInit( globals->get_model_lib(), globals->get_fg_root(),
83 globals->get_props(), globals->get_sim_time_sec() );
87 void FGScenery::update(double dt) {
91 void FGScenery::bind() {
92 fgTie("/environment/ground-elevation-m", this,
93 &FGScenery::get_cur_elev, &FGScenery::set_cur_elev);
97 void FGScenery::unbind() {
98 fgUntie("/environment/ground-elevation-m");