Merge branch 'next' of gitorious.org:fg/flightgear into next

[flightgear.git] / src / Airports / runways.hxx

diff --git a/src/Airports/runways.hxx b/src/Airports/runways.hxx
index 9c47124d26668d22e5dc5f48ad3b15b036dd4fff..e6f97ea95d7790c30898fbcd6e4ec9c7a5bc865d 100644 (file)
--- a/src/Airports/runways.hxx
+++ b/src/Airports/runways.hxx
@@ -2,7 +2,7 @@
 //
 // Written by Curtis Olson, started August 2000.
 //
-// Copyright (C) 2000  Curtis L. Olson  - curt@flightgear.org
+// Copyright (C) 2000  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.
 //
 // $Id$
 
@@ -24,92 +24,97 @@
 #ifndef _FG_RUNWAYS_HXX
 #define _FG_RUNWAYS_HXX
 
-
-#ifndef __cplusplus                                                          
-# error This library requires C++
-#endif                                   
-
-
-#ifdef HAVE_CONFIG_H
-#  include <config.h>
-#endif
-
 #include <simgear/compiler.h>
 
-#include STL_STRING
-#include <map>
-
-SG_USING_STD(string);
-SG_USING_STD(multimap);
-
-
-struct ltstr {
-    bool operator()(const string s1, const string s2) const {
-        return s1 < s2;
-    }
-};
-
-
-struct FGRunway {
-
-    string type;
-    string id;
-    string rwy_no;
-
-    double lon;
-    double lat;
-    double heading;
-    double length;
-    double width;
-    
-    string surface_flags;
-    string end1_flags;
-    string end2_flags;
-
-    double end1_displaced_threshold;
-    double end2_displaced_threshold;
-
-    double end1_stopway;
-    double end2_stopway;
-
-};
-
-typedef multimap < string, FGRunway, ltstr > runway_map;
-typedef runway_map::iterator runway_map_iterator;
-typedef runway_map::const_iterator const_runway_map_iterator;
-
-class FGRunwayList {
-
-private:
-
-    runway_map runways;
-    runway_map_iterator current;
-
+#include <Airports/runwaybase.hxx>
+
+// forward decls
+class FGAirport;
+class FGNavRecord;
+class SGPropertyNode;
+
+class FGRunway : public FGRunwayBase
+{
+  FGAirport* _airport;
+  bool _isReciprocal;
+  FGRunway* _reciprocal;
+  double _displ_thresh;
+  double _stopway;
+  FGNavRecord* _ils;
 public:
-
-    // Constructor
-    FGRunwayList( const string& file );
-
-    // Destructor
-    ~FGRunwayList();
-
-    // search for the specified apt id.
-    // Returns true if successful, otherwise returns false.
-    // On success, runway data is returned thru "runway" pointer.
-    // "runway" is not changed if "apt" is not found.
-    bool search( const string& aptid, FGRunway* runway );
-    bool search( const string& aptid, const string& rwyno, FGRunway* runway );
-
-    // DCL - search for runway closest to desired heading in degrees
-    bool search( const string& aptid, const int hdg, FGRunway* runway );
-
-    // Return the runway number of the runway closest to a given heading
-    string search( const string& aptid, const int tgt_hdg );
-
-    FGRunway search( const string& aptid );
-    bool next( FGRunway* runway );
-    FGRunway next();
+  
+  FGRunway(FGAirport* aAirport, const std::string& rwy_no,
+            const SGGeod& aGeod,
+            const double heading, const double length,
+            const double width,
+            const double displ_thresh,
+            const double stopway,
+            const int surface_code,
+            const bool reciprocal);
+  
+  /**
+   * given a runway identifier (06, 18L, 31R) compute the identifier for the
+   * reciprocal heading runway (24, 36R, 13L) string.
+   */
+  static std::string reverseIdent(const std::string& aRunayIdent);
+    
+  /**
+   * score this runway according to the specified weights. Used by
+   * FGAirport::findBestRunwayForHeading
+   */
+  double score(double aLengthWt, double aWidthWt, double aSurfaceWt) const;
+
+  /**
+   * Test if this runway is the reciprocal. This allows users who iterate
+   * over runways to avoid counting runways twice, if desired.
+   */
+  bool isReciprocal() const
+  { return _isReciprocal; }
+
+  /**
+   * Get the runway begining point - this is syntatic sugar, equivalent to
+   * calling pointOnCenterline(0.0);
+   */
+  SGGeod begin() const;
+  
+  /**
+   * Get the (possibly displaced) threshold point.
+   */
+  SGGeod threshold() const;
+  
+  /**
+   * Get the 'far' end - this is equivalent to calling
+   * pointOnCenterline(lengthFt());
+   */
+  SGGeod end() const;
+  
+  double displacedThresholdM() const
+  { return _displ_thresh * SG_FEET_TO_METER; }
+  
+  double stopwayM() const
+  { return _stopway * SG_FEET_TO_METER; }
+  
+  /**
+   * Airport this runway is located at
+   */
+  FGAirport* airport() const
+  { return _airport; }
+  
+  // FIXME - should die once airport / runway creation is cleaned up
+  void setAirport(FGAirport* aAirport)
+  { _airport = aAirport; }
+  
+  FGNavRecord* ILS() const { return _ils; }
+  void setILS(FGNavRecord* nav) { _ils = nav; }
+  
+  FGRunway* reciprocalRunway() const
+  { return _reciprocal; }
+  void setReciprocalRunway(FGRunway* other);
+  
+  /**
+   * Helper to process property data loaded from an ICAO.threshold.xml file
+   */
+  void processThreshold(SGPropertyNode* aThreshold);
 };
 
-
 #endif // _FG_RUNWAYS_HXX