X-Git-Url: https://git.mxchange.org/?a=blobdiff_plain;f=src%2FScenery%2Fscenery.hxx;h=593707d145b02495bca4c686c695b87308d5f135;hb=43add4f820300833024366cb58cfedb90bfbe5a0;hp=f2e77ec972c37f8a1c7e795b34e2d139642ef0ba;hpb=3b3600fd2141e599910dcdf3d76778a94274df72;p=flightgear.git diff --git a/src/Scenery/scenery.hxx b/src/Scenery/scenery.hxx index f2e77ec97..593707d14 100644 --- a/src/Scenery/scenery.hxx +++ b/src/Scenery/scenery.hxx @@ -2,7 +2,7 @@ // // Written by Curtis Olson, started May 1997. // -// Copyright (C) 1997 Curtis L. Olson - curt@infoplane.com +// Copyright (C) 1997 Curtis L. Olson - http://www.flightgear.org/~curt // // This program is free software; you can redistribute it and/or // modify it under the terms of the GNU General Public License as @@ -16,7 +16,7 @@ // // You should have received a copy of the GNU General Public License // along with this program; if not, write to the Free Software -// Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. +// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. // // $Id$ @@ -29,47 +29,37 @@ # error This library requires C++ #endif -#include +#include +#include +#include +#include +#include #include -#include +#include "SceneryPager.hxx" -class ssgRoot; -class ssgBranch; +namespace simgear { +class BVHMaterial; +} // Define a structure containing global scenery parameters -class FGScenery : public SGSubsystem { - // center of current scenery chunk - Point3D center; - - // next center of current scenery chunk - Point3D next_center; - - // angle of sun relative to current local horizontal - double sun_angle; - - // elevation of terrain at our current lat/lon (based on the - // actual drawn polygons) - double cur_elev; - - // the distance (radius) from the center of the earth to the - // current scenery elevation point - double cur_radius; - - // unit normal at point used to determine current elevation - sgdVec3 cur_normal; - - // SSG scene graph - ssgRoot *scene_graph; - ssgBranch *terrain_branch; - ssgRoot *gnd_lights_root; - ssgRoot *vasi_lights_root; - ssgRoot *rwy_lights_root; - ssgRoot *taxi_lights_root; - ssgBranch *models_branch; - ssgBranch *aircraft_branch; - +class FGScenery : public SGSubsystem +{ + class ScenerySwitchListener; + friend class ScenerySwitchListener; + + + // scene graph + osg::ref_ptr scene_graph; + osg::ref_ptr terrain_branch; + osg::ref_ptr models_branch; + osg::ref_ptr aircraft_branch; + osg::ref_ptr interior_branch; + osg::ref_ptr particles_branch; + + osg::ref_ptr _pager; + ScenerySwitchListener* _listener; public: FGScenery(); @@ -77,69 +67,70 @@ public: // Implementation of SGSubsystem. void init (); + void shutdown (); void bind (); void unbind (); void update (double dt); - inline double get_cur_elev() const { return cur_elev; } - inline void set_cur_elev( double e ) { cur_elev = e; } - - inline Point3D get_center() const { return center; } - inline void set_center( Point3D p ) { center = p; } - - inline Point3D get_next_center() const { return next_center; } - inline void set_next_center( Point3D p ) { next_center = p; } - - inline void set_cur_radius( double r ) { cur_radius = r; } - inline void set_cur_normal( sgdVec3 n ) { sgdCopyVec3( cur_normal, n ); } - - inline ssgRoot *get_scene_graph () const { return scene_graph; } - inline void set_scene_graph (ssgRoot * s) { scene_graph = s; } - - inline ssgBranch *get_terrain_branch () const { return terrain_branch; } - inline void set_terrain_branch (ssgBranch * t) { terrain_branch = t; } - - inline ssgRoot *get_gnd_lights_root () const { - return gnd_lights_root; - } - inline void set_gnd_lights_root (ssgRoot *r) { - gnd_lights_root = r; - } - - inline ssgRoot *get_vasi_lights_root () const { - return vasi_lights_root; - } - inline void set_vasi_lights_root (ssgRoot *r) { - vasi_lights_root = r; - } - - inline ssgRoot *get_rwy_lights_root () const { - return rwy_lights_root; - } - inline void set_rwy_lights_root (ssgRoot *r) { - rwy_lights_root = r; - } - - inline ssgRoot *get_taxi_lights_root () const { - return taxi_lights_root; - } - inline void set_taxi_lights_root (ssgRoot *r) { - taxi_lights_root = r; - } - - inline ssgBranch *get_models_branch () const { - return models_branch; - } - inline void set_models_branch (ssgBranch *t) { - models_branch = t; - } - - inline ssgBranch *get_aircraft_branch () const { - return aircraft_branch; - } - inline void set_aircraft_branch (ssgBranch *t) { - aircraft_branch = t; - } + /// Compute the elevation of the scenery at geodetic latitude lat, + /// geodetic longitude lon and not higher than max_alt. + /// If the exact flag is set to true, the scenery center is moved to + /// gain a higher accuracy of that query. The center is restored past + /// that to the original value. + /// The altitude hit is returned in the alt argument. + /// The method returns true if the scenery is available for the given + /// lat/lon pair. If there is no scenery for that point, the altitude + /// value is undefined. + /// All values are meant to be in meters or degrees. + bool get_elevation_m(const SGGeod& geod, double& alt, + const simgear::BVHMaterial** material, + const osg::Node* butNotFrom = 0); + + /// Compute the elevation of the scenery below the cartesian point pos. + /// you the returned scenery altitude is not higher than the position + /// pos plus an offset given with max_altoff. + /// If the exact flag is set to true, the scenery center is moved to + /// gain a higher accuracy of that query. The center is restored past + /// that to the original value. + /// The altitude hit is returned in the alt argument. + /// The method returns true if the scenery is available for the given + /// lat/lon pair. If there is no scenery for that point, the altitude + /// value is undefined. + /// All values are meant to be in meters. + bool get_cart_elevation_m(const SGVec3d& pos, double max_altoff, + double& elevation, + const simgear::BVHMaterial** material, + const osg::Node* butNotFrom = 0); + + /// Compute the nearest intersection point of the line starting from + /// start going in direction dir with the terrain. + /// The input and output values should be in cartesian coordinates in the + /// usual earth centered wgs84 coordinate system. Units are meters. + /// On success, true is returned. + bool get_cart_ground_intersection(const SGVec3d& start, const SGVec3d& dir, + SGVec3d& nearestHit, + const osg::Node* butNotFrom = 0); + + osg::Group *get_scene_graph () const { return scene_graph.get(); } + osg::Group *get_terrain_branch () const { return terrain_branch.get(); } + osg::Group *get_models_branch () const { return models_branch.get(); } + osg::Group *get_aircraft_branch () const { return aircraft_branch.get(); } + osg::Group *get_interior_branch () const { return interior_branch.get(); } + osg::Group *get_particles_branch () const { return particles_branch.get(); } + + /// Returns true if scenery is available for the given lat, lon position + /// within a range of range_m. + /// lat and lon are expected to be in degrees. + bool scenery_available(const SGGeod& position, double range_m); + + // Static because access to the pager is needed before the rest of + // the scenery is initialized. + static flightgear::SceneryPager* getPagerSingleton(); + static void resetPagerSingleton(); + + flightgear::SceneryPager* getPager() { return _pager.get(); } + + static const char* subsystemName() { return "scenery"; } };