1 // Copyright (C) 2009 - 2012  Mathias Froehlich - Mathias.Froehlich@web.de
2 //
3 // This library is free software; you can redistribute it and/or
4 // modify it under the terms of the GNU Library General Public
5 // License as published by the Free Software Foundation; either
6 // version 2 of the License, or (at your option) any later version.
7 //
8 // This library is distributed in the hope that it will be useful,
9 // but WITHOUT ANY WARRANTY; without even the implied warranty of
10 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
11 // Library General Public License for more details.
12 //
13 // You should have received a copy of the GNU General Public License
14 // along with this program; if not, write to the Free Software
15 // Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
16 //
17 
18 #ifndef _AIBVHPAGER_HXX
19 #define _AIBVHPAGER_HXX
20 
21 #include <string>
22 #include <simgear/bvh/BVHNode.hxx>
23 #include <simgear/bvh/BVHPager.hxx>
24 
25 namespace fgai {
26 
27 class AIBVHPager : public simgear::BVHPager {
28 public:
29     AIBVHPager();
30     ~AIBVHPager();
31 
32     /// Load the flightgear scenery into the pager
33     void setScenery(const std::string& fg_root, const std::string& fg_scenery);
34 
35     /// Get a bounding volume subtree contained in sphere.
36     /// This is similar to the not so well known ground cache.
37     SGSharedPtr<simgear::BVHNode> getBoundingVolumes(const SGSphered& sphere);
38 
39 private:
40     class ReadFileCallback;
41     class SubTreeCollector;
42 
43     /// The possibly paged root node
44     SGSharedPtr<simgear::BVHNode> _node;
45 };
46 
47 } // namespace fgai
48 
49 #endif
50