X-Git-Url: https://git.mxchange.org/?a=blobdiff_plain;f=src%2FFDM%2Fgroundcache.hxx;h=145561a9c571589b47f1075e8d7be5735de6de2b;hb=7e91e7e98b9ba6a3b74883527602ad8886e352b8;hp=1db7fb0b628fefca1230fdef5c93dceff07b78f2;hpb=8f660b97ad95664c9eed11bf9a2afb247bba9fd9;p=flightgear.git

diff --git a/src/FDM/groundcache.hxx b/src/FDM/groundcache.hxx
index 1db7fb0b6..145561a9c 100644
--- a/src/FDM/groundcache.hxx
+++ b/src/FDM/groundcache.hxx
@@ -23,9 +23,6 @@
 #ifndef _GROUNDCACHE_HXX
 #define _GROUNDCACHE_HXX
 
-#include <osg/Group>
-#include <osg/ref_ptr>
-
 #include <simgear/compiler.h>
 #include <simgear/constants.h>
 #include <simgear/math/SGMath.hxx>
@@ -33,6 +30,13 @@
 #include <simgear/scene/bvh/BVHNode.hxx>
 #include <simgear/structure/SGSharedPtr.hxx>
 
+// #define GROUNDCACHE_DEBUG
+#ifdef GROUNDCACHE_DEBUG
+#include <osg/Group>
+#include <osg/ref_ptr>
+#include <simgear/timing/timestamp.hxx>
+#endif
+
 class SGMaterial;
 namespace simgear {
 class BVHLineGeometry;
@@ -62,6 +66,8 @@ public:
     const SGVec3d& get_down() const
     { return down; }
 
+    // The time offset that originates from a simtime different than zero
+    // at initialization time of the fdm.
     double get_cache_time_offset() const
     { return cache_time_offset; }
     void set_cache_time_offset(double time_offset)
@@ -131,6 +137,15 @@ private:
     bool found_ground;
 
     SGSharedPtr<simgear::BVHNode> _localBvhTree;
+
+#ifdef GROUNDCACHE_DEBUG
+    SGTimeStamp _lookupTime;
+    unsigned _lookupCount;
+    SGTimeStamp _buildTime;
+    unsigned _buildCount;
+
+    osg::ref_ptr<osg::Group> _group;
+#endif
 };
 
 #endif