Moved random ground cover object management code (userdata.[ch]xx) over

[flightgear.git] / src / ATC / ATCutils.hxx

diff --git a/src/ATC/ATCutils.hxx b/src/ATC/ATCutils.hxx
index d009c888733a288c89bdfe04036d74e7d9a15d15..420b6163251cdfb73331eee86ccdaa80a446073f 100644 (file)
--- a/src/ATC/ATCutils.hxx
+++ b/src/ATC/ATCutils.hxx
@@ -19,6 +19,7 @@
 // Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 
 #include <Airports/simple.hxx>
+#include <Airports/runways.hxx>
 
 #include <math.h>
 #include <simgear/math/point3d.hxx>
@@ -76,6 +77,10 @@ double GetHeadingFromTo(Point3D A, Point3D B);
 // Given a heading (in degrees), bound it from 0 -> 360
 void dclBoundHeading(double &hdg);
 
+// smallest difference between two angles in degrees
+// difference is negative if a1 > a2 and positive if a2 > a1
+double GetAngleDiff_deg( const double &a1, const double &a2);
+
 
 /*******************************
 *
@@ -91,3 +96,13 @@ bool dclFindAirportID( const string& id, FGAirport *a );
 
 // get airport elevation
 double dclGetAirportElev( const string& id );
+
+/****************
+*
+*   Runways
+*
+****************/
+
+// Given a Point3D (lon/lat/elev) and an FGRunway struct, determine if the point lies on the runway
+bool OnRunway(Point3D pt, const FGRunway& rwy);
+