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.
38 #include <simgear/debug/logstream.hxx>
40 #include <Main/fg_props.hxx>
42 #include "scenery.hxx"
45 // Scenery Management system
46 FGScenery::FGScenery() {
47 SG_LOG( SG_TERRAIN, SG_INFO, "Initializing scenery subsystem" );
49 center = Point3D(0.0);
54 // Initialize the Scenery Management system
55 FGScenery::~FGScenery() {
59 void FGScenery::init() {
61 scene_graph = new ssgRoot;
62 scene_graph->setName( "Scene" );
64 lighting = new ssgRoot;
65 lighting->setName( "Lighting" );
68 terrain_branch = new ssgBranch;
69 terrain_branch->setName( "Terrain" );
70 scene_graph->addKid( terrain_branch );
72 models_branch = new ssgBranch;
73 models_branch->setName( "Models" );
74 scene_graph->addKid( models_branch );
76 aircraft_branch = new ssgBranch;
77 aircraft_branch->setName( "Aircraft" );
78 scene_graph->addKid( aircraft_branch );
81 gnd_lights_branch = new ssgBranch;
82 gnd_lights_branch->setName( "Ground Lighting" );
83 lighting->addKid( gnd_lights_branch );
85 rwy_lights_branch = new ssgBranch;
86 rwy_lights_branch->setName( "Runway Lighting" );
87 lighting->addKid( rwy_lights_branch );
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");