140 lines
3.9 KiB
C++
140 lines
3.9 KiB
C++
// scenery.hxx -- data structures and routines for managing scenery.
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//
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// Written by Curtis Olson, started May 1997.
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//
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// Copyright (C) 1997 Curtis L. Olson - curt@infoplane.com
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//
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// This program is free software; you can redistribute it and/or
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// modify it under the terms of the GNU General Public License as
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// published by the Free Software Foundation; either version 2 of the
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// License, or (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful, but
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// WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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// General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with this program; if not, write to the Free Software
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// Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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//
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// $Id$
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#ifndef _SCENERY_HXX
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#define _SCENERY_HXX
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#ifndef __cplusplus
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# error This library requires C++
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#endif
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#include <plib/sg.h>
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#include <plib/ssg.h>
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#include <simgear/math/point3d.hxx>
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#include <Main/fgfs.hxx>
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// Define a structure containing global scenery parameters
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class FGScenery : public FGSubsystem {
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// center of current scenery chunk
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Point3D center;
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// next center of current scenery chunk
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Point3D next_center;
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// angle of sun relative to current local horizontal
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double sun_angle;
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// elevation of terrain at our current lat/lon (based on the
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// actual drawn polygons)
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double cur_elev;
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// the distance (radius) from the center of the earth to the
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// current scenery elevation point
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double cur_radius;
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// unit normal at point used to determine current elevation
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sgdVec3 cur_normal;
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// SSG scene graph
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ssgRoot *scene_graph;
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ssgBranch *terrain_branch;
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ssgRoot *gnd_lights_root;
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ssgRoot *rwy_lights_root;
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ssgRoot *taxi_lights_root;
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ssgBranch *models_branch;
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ssgBranch *aircraft_branch;
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public:
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FGScenery();
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~FGScenery();
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// Implementation of FGSubsystem.
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void init ();
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void bind ();
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void unbind ();
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void update (double dt);
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inline double get_cur_elev() const { return cur_elev; }
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inline void set_cur_elev( double e ) { cur_elev = e; }
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inline Point3D get_center() const { return center; }
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inline void set_center( Point3D p ) { center = p; }
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inline Point3D get_next_center() const { return next_center; }
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inline void set_next_center( Point3D p ) { next_center = p; }
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inline void set_cur_radius( double r ) { cur_radius = r; }
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inline void set_cur_normal( sgdVec3 n ) { sgdCopyVec3( cur_normal, n ); }
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inline ssgRoot *get_scene_graph () const { return scene_graph; }
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inline void set_scene_graph (ssgRoot * s) { scene_graph = s; }
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inline ssgBranch *get_terrain_branch () const { return terrain_branch; }
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inline void set_terrain_branch (ssgBranch * t) { terrain_branch = t; }
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inline ssgRoot *get_gnd_lights_root () const {
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return gnd_lights_root;
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}
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inline void set_gnd_lights_root (ssgRoot *r) {
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gnd_lights_root = r;
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}
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inline ssgRoot *get_rwy_lights_root () const {
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return rwy_lights_root;
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}
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inline void set_rwy_lights_root (ssgRoot *r) {
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rwy_lights_root = r;
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}
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inline ssgRoot *get_taxi_lights_root () const {
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return taxi_lights_root;
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}
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inline void set_taxi_lights_root (ssgRoot *r) {
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taxi_lights_root = r;
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}
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inline ssgBranch *get_models_branch () const {
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return models_branch;
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}
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inline void set_models_branch (ssgBranch *t) {
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models_branch = t;
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}
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inline ssgBranch *get_aircraft_branch () const {
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return aircraft_branch;
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}
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inline void set_aircraft_branch (ssgBranch *t) {
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aircraft_branch = t;
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}
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};
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#endif // _SCENERY_HXX
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