]> git.mxchange.org Git - flightgear.git/blobdiff - Cockpit/hud.cxx
Converted to new logstream debugging facility. This allows release
[flightgear.git] / Cockpit / hud.cxx
index de8b2518bf2d3fd8175dc8330c8d6c2e2d30b8b0..a234f5c64ae6ac5b78e1bf7208abf6db859ca0f2 100644 (file)
@@ -1,27 +1,25 @@
-/**************************************************************************
- * hud.cxx -- hud defines and prototypes
- *
- * Written by Michele America, started September 1997.
- *
- * Copyright (C) 1997  Michele F. America  - micheleamerica@geocities.com
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of the
- * License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License for more details.
- *
- * 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.
- *
- * $Id$
- * (Log is kept at end of this file)
- **************************************************************************/
+// hud.cxx -- hud defines and prototypes
+//
+// Written by Michele America, started September 1997.
+//
+// Copyright (C) 1997  Michele F. America  - micheleamerica@geocities.com
+//
+// This program is free software; you can redistribute it and/or
+// modify it under the terms of the GNU General Public License as
+// published by the Free Software Foundation; either version 2 of the
+// License, or (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful, but
+// WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+// General Public License for more details.
+//
+// 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.
+//
+// $Id$
+// (Log is kept at end of this file)
 
 
 #ifdef HAVE_CONFIG_H
@@ -40,8 +38,8 @@
 #  include <values.h>  // for MAXINT
 #endif
 
-#include <Aircraft/aircraft.h>
-#include <Debug/fg_debug.h>
+#include <Aircraft/aircraft.hxx>
+#include <Debug/logstream.hxx>
 #include <Include/fg_constants.h>
 #include <Main/options.hxx>
 #include <Math/fg_random.h>
@@ -49,7 +47,6 @@
 #include <Math/polar3d.hxx>
 #include <Scenery/scenery.hxx>
 #include <Time/fg_timer.hxx>
-#include <Weather/weather.h>
 
 #if defined ( __sun__ ) || defined ( __sgi )
 extern "C" {
@@ -60,6 +57,7 @@ extern "C" {
 #include "hud.hxx"
 
 
+static char units[5];
 
 // The following routines obtain information concerntin the aircraft's
 // current state and return it to calling instrument display routines.
@@ -152,7 +150,7 @@ int fgHUDInit( fgAIRCRAFT * /* current_aircraft */ )
   instr_item *HIptr;
   int index;
 
-  fgPrintf( FG_COCKPIT, FG_INFO, "Initializing current aircraft HUD\n" );
+  FG_LOG( FG_COCKPIT, FG_INFO, "Initializing current aircraft HUD" );
 
   HUD_deque.erase( HUD_deque.begin(), HUD_deque.end());  // empty the HUD deque
 
@@ -308,18 +306,18 @@ int fgHUDInit( fgAIRCRAFT * /* current_aircraft */ )
                                                  TRUE );
         break;
 
-      case 11:    // Digital Altimeter
+      case 11:    // Digital Rate of Climb
         HIptr = (instr_item *) new instr_label ( 110,
                                                  135,
                                                   40,
                                                   10,
-                                                 get_altitude,
-                                                 "MSL  %5.0f",
+                                                 get_climb_rate,
+                                                 "%5.0f",
+                                                 " Climb",
                                                  NULL,
-                                                 " m",
                                                  1.0,
                                                  HUDS_TOP,
-                                                 LEFT_JUST,
+                                                 RIGHT_JUST,
                                                  SMALL,
                                                  0,
                                                  TRUE );
@@ -531,385 +529,126 @@ int fgHUDInit( fgAIRCRAFT * /* current_aircraft */ )
 
 int fgHUDInit2( fgAIRCRAFT * /* current_aircraft */ )
 {
-  instr_item *HIptr;
-  int index;
-
-  fgPrintf( FG_COCKPIT, FG_INFO, "Initializing current aircraft HUD\n" );
-
-  HUD_deque.erase( HUD_deque.begin(), HUD_deque.end());  // empty the HUD deque
-
-//  hud->code = 1;
-//  hud->status = 0;
-
-  // For now lets just hardcode the hud here.
-  // In the future, hud information has to come from the same place
-  // aircraft information came from.
-
-//  fgHUDSetTimeMode( hud, NIGHT );
-//  fgHUDSetBrightness( hud, BRT_LIGHT );
-
-//  index = 0;
-  index = 19;  
-
-  do {
-    switch ( index ) {
-      case 0:     // TBI
-        HIptr = (instr_item *) new fgTBI_instr( 270, 100, 60, 10 );
-        break;
-
-      case 1:     // Artificial Horizon
-        HIptr = (instr_item *) new HudLadder( 240, 195, 120, 180 );
-        break;
-
-      case 2:    // KIAS
-        HIptr = (instr_item *) new hud_card( 130,
-                                             170,
-                                              28,
-                                             200,
-                                             get_speed,
-                                             HUDS_LEFT | HUDS_VERT,
-                                             200.0, 0.0,
-                                             1.0,
-                                             10,  5,
-                                             0,
-                                             0,
-                                             50.0,
-                                             true);
-
-        break;
-
-      case 3:    // Radio Altimeter
-        HIptr = (instr_item *) new hud_card( 420,
-                                             195,
-                                              25,
-                                             150,
-                                             get_agl,
-                                             HUDS_LEFT | HUDS_VERT,
-                                             1000, 0,
-                                             1.0,
-                                             25,    5,
-                                             0,
-                                             0,
-                                             200.0,
-                                             true);
-        break;
-
-      case 4:    // GYRO COMPASS
-        HIptr = (instr_item *) new hud_card( 200,
-                                             375,
-                                             200,
-                                              28,
-                                             get_heading,
-                                             HUDS_TOP,
-                                             360, 0,
-                                               1.0,
-                                               5,   1,
-                                             360,
-                                               0,
-                                              25,
-                                             true);
-        break;
-
-      case 5:    // AMSL
-        HIptr = (instr_item *) new hud_card( 460,
-                                             170,
-                                              35,
-                                             200,
-                                             get_altitude,
-                                             HUDS_RIGHT | HUDS_VERT,
-                                             15000, 0,
-                                             1.0,
-                                             100,  25,
-                                             0,
-                                             0,
-                                             250,
-                                             true);
-        break;
-
-      case 6:
-        HIptr = (instr_item *) new  guage_instr( 250,            // x
-                                                 350,            // y
-                                                 100,            // width
-                                                  20,            // height
-                                                 get_aileronval, // data source
-                                                 HUDS_BOTTOM | HUDS_NOTEXT,
-                                                 100.0,
-                                                 +1.0,
-                                                 -1.0);
-        break;
-
-      case 7:
-        HIptr = (instr_item *) new  guage_instr( 170,             // x
-                                                 225,             // y
-                                                  20,             // width
-                                                 100,             // height
-                                                 get_elevatorval, // data source
-                                                 HUDS_RIGHT | HUDS_VERT | HUDS_NOTEXT,
-                                                -100.0,           // Scale data
-                                                  +1.0,           // Data Range
-                                                  -1.0);
-        break;
-
-      case 8:
-        HIptr = (instr_item *) new  guage_instr( 250,             // x
-                                                 200,             // y
-                                                 100,             // width
-                                                  20,             // height
-                                                 get_rudderval,   // data source
-                                                 HUDS_TOP | HUDS_NOTEXT,
-                                                 100.0,
-                                                 +1.0,
-                                                 -1.0);
-        break;
-
-      case 9:
-        HIptr = (instr_item *) new  guage_instr( 100,             // x
-                                                 190,
-                                                  20,
-                                                 160,             // height
-                                                 get_throttleval, // data source
-                                                 HUDS_VERT | HUDS_RIGHT | HUDS_NOTEXT,
-                                                 100.0,
-                                                   1.0,
-                                                   0.0);
-        break;
-
-      case 10:    // Digital KIAS
-        HIptr = (instr_item *) new instr_label ( 110,
-                                                 150,
-                                                  40,
-                                                  30,
-                                                 get_speed,
-                                                 "%5.0f",
-                                                 NULL,
-                                                 " Kts",
-                                                 1.0,
-                                                 HUDS_TOP,
-                                                 RIGHT_JUST,
-                                                 SMALL,
-                                                 0,
-                                                 TRUE );
-        break;
-
-      case 11:    // Digital Altimeter
-        HIptr = (instr_item *) new instr_label ( 110,
-                                                 135,
-                                                  40,
-                                                  10,
-                                                 get_altitude,
-                                                 "MSL  %5.0f",
-                                                 NULL,
-                                                 " m",
-                                                 1.0,
-                                                 HUDS_TOP,
-                                                 LEFT_JUST,
-                                                 SMALL,
-                                                 0,
-                                                 TRUE );
-        break;
-
-      case 12:    // Roll indication diagnostic
-        HIptr = (instr_item *) new instr_label ( 110,
-                                                 120,
-                                                  40,
-                                                  10,
-                                                 get_roll,
-                                                 "%5.2f",
-                                                 " Roll",
-                                                 " Deg",
-                                                 1.0,
-                                                 HUDS_TOP,
-                                                 RIGHT_JUST,
-                                                 SMALL,
-                                                 0,
-                                                 TRUE );
-        break;
-
-      case 13:    // Angle of attack diagnostic
-        HIptr = (instr_item *) new instr_label ( 440,
-                                                 150,
-                                                  60,
-                                                  10,
-                                                 get_aoa,
-                                                 "      %5.2f",
-                                                 "AOA",
-                                                 " Deg",
-                                                 1.0,
-                                                 HUDS_TOP,
-                                                 RIGHT_JUST,
-                                                 SMALL,
-                                                 0,
-                                                 TRUE );
-        break;
-
-      case 14:
-        HIptr = (instr_item *) new instr_label ( 440,
-                                                 135,
-                                                  60,
-                                                  10,
-                                                 get_heading,
-                                                 " %5.1f",
-                                                 "Heading ",
-                                                 " Deg",
-                                                 1.0,
-                                                 HUDS_TOP,
-                                                 RIGHT_JUST,
-                                                 SMALL,
-                                                 0,
-                                                 TRUE );
-        break;
-
-      case 15:
-        HIptr = (instr_item *) new instr_label ( 440,
-                                                 120,
-                                                  60,
-                                                  10,
-                                                 get_sideslip,
-                                                 "%5.2f",
-                                                 "Sideslip ",
-                                                 NULL,
-                                                 1.0,
-                                                 HUDS_TOP,
-                                                 RIGHT_JUST,
-                                                 SMALL,
-                                                 0,
-                                                 TRUE );
-        break;
-
-      case 16:
-        HIptr = (instr_item *) new instr_label( 440,
-                                                100,
-                                                 60,
-                                                 10,
-                                                get_throttleval,
-                                                "%5.2f",
-                                                "Throttle ",
-                                                NULL,
-                                                 1.0,
-                                                HUDS_TOP,
-                                                RIGHT_JUST,
-                                                SMALL,
-                                                0,
-                                                TRUE );
-        break;
-
-      case 17:
-        HIptr = (instr_item *) new instr_label( 440,
-                                                 85,
-                                                 60,
-                                                 10,
-                                                get_elevatorval,
-                                                "%5.2f",
-                                                "Elevator ",
-                                                NULL,
-                                                 1.0,
-                                                HUDS_TOP,
-                                                RIGHT_JUST,
-                                                SMALL,
-                                                0,
-                                                TRUE );
-        break;
-
-      case 18:
-        HIptr = (instr_item *) new instr_label( 440,
-                                                 60,
-                                                 60,
-                                                 10,
-                                                get_aileronval,
-                                                "%5.2f",
-                                                "Aileron  ",
-                                                NULL,
-                                                 1.0,
-                                                HUDS_TOP,
-                                                RIGHT_JUST,
-                                                SMALL,
-                                                0,
-                                                TRUE );
-        break;
-
-
-      case 19:
-        HIptr = (instr_item *) new instr_label( 10,
-                                                10,
-                                                60,
-                                                10,
-                                                 get_frame_rate,
-                                                "%.1f",
-                                                "Frame rate = ",
-                                                NULL,
-                                                 1.0,
-                                                HUDS_TOP,
-                                                RIGHT_JUST,
-                                                SMALL,
-                                                0,
-                                                TRUE );
-        break;
-
-      case 20:
-                 switch( current_options.get_tris_or_culled() ) {
-                         case 0:
-                                 HIptr = (instr_item *) new instr_label( 10,
-                                         25,
-                                         90,
-                                         10,
-                                         get_vfc_tris_drawn,                                                                                           
-                                         "%.0f",
-                                         "Tris Rendered = ",
-                                         NULL,
-                                         1.0,
-                                         HUDS_TOP,
-                                         RIGHT_JUST,
-                                         SMALL,
-                                         0,
-                                         TRUE );
-                                 break;
-                         case 1:
-                                 HIptr = (instr_item *) new instr_label( 10,
-                                         25,
-                                         90,
-                                         10,
-                                         get_vfc_ratio,
-                                         "%.2f",
-                                         "VFC Ratio = ",
-                                         NULL,
-                                         1.0,
-                                         HUDS_TOP,
-                                         RIGHT_JUST,
-                                         SMALL,
-                                         0,
-                                         TRUE );
-                                 break;
-                 }
-                 break;
-               
-      case 21:
-        HIptr = (instr_item *) new instr_label( 10,
-                                                40,
-                                                90,
-                                                10,
-                                                get_fov,
-                                                "%.1f",
-                                                "FOV = ",
-                                                NULL,
-                                                 1.0,
-                                                HUDS_TOP,
-                                                RIGHT_JUST,
-                                                SMALL,
-                                                0,
-                                                TRUE );
-        break;
-
-      default:
-        HIptr = 0;;
-      }
-    if( HIptr ) {                   // Anything to install?
-      HUD_deque.insert( HUD_deque.begin(), HIptr);
-      }
-    index++;
+    instr_item *HIptr;
+    int index;
+
+    FG_LOG( FG_COCKPIT, FG_INFO, "Initializing current aircraft HUD" );
+
+    HUD_deque.erase( HUD_deque.begin(), HUD_deque.end());
+
+    //  hud->code = 1;
+    //  hud->status = 0;
+
+    // For now lets just hardcode the hud here.
+    // In the future, hud information has to come from the same place
+    // aircraft information came from.
+
+    //  fgHUDSetTimeMode( hud, NIGHT );
+    //  fgHUDSetBrightness( hud, BRT_LIGHT );
+
+    //  index = 0;
+    index = 19;  
+
+    instr_item* p;
+
+    p = new instr_label( 10, 10, 60, 10,
+                        get_frame_rate,
+                        "%.1f",
+                        "Frame rate = ",
+                        NULL,
+                        1.0,
+                        HUDS_TOP,
+                        RIGHT_JUST,
+                        SMALL,
+                        0,
+                        TRUE );
+    HUD_deque.push_front( p );
+
+    if ( current_options.get_tris_or_culled() == 0 )
+       p = new instr_label( 10, 25, 90, 10,
+                            get_vfc_tris_drawn,
+                            "%.0f",
+                            "Tris Rendered = ",
+                            NULL,
+                            1.0,
+                            HUDS_TOP,
+                            RIGHT_JUST,
+                            SMALL,
+                            0,
+                            TRUE );
+    else
+       p = new instr_label( 10, 25, 90, 10,
+                            get_vfc_ratio,
+                            "%.2f",
+                            "VFC Ratio = ",
+                            NULL,
+                            1.0,
+                            HUDS_TOP,
+                            RIGHT_JUST,
+                            SMALL,
+                            0,
+                            TRUE );
+    HUD_deque.push_front( p );
+
+    p = new instr_label( 10, 40, 90, 10,
+                        get_fov,
+                        "%.1f",
+                        "FOV = ",
+                        NULL,
+                        1.0,
+                        HUDS_TOP,
+                        RIGHT_JUST,
+                        SMALL,
+                        0,
+                        TRUE );
+    HUD_deque.push_front( p );
+
+    const int x_pos = 480;
+    p = new instr_label( x_pos, 40, 40, 30,
+                        get_speed,
+                        "%5.0f",
+                        "Airspeed ",
+                        " Kts",
+                        1.0,
+                        HUDS_TOP,
+                        RIGHT_JUST,
+                        SMALL,
+                        0,
+                        TRUE );
+    HUD_deque.push_front( p );
+
+    if ( current_options.get_units() == fgOPTIONS::FG_UNITS_FEET ) {
+       strcpy(units, " ft");
+    } else {
+       strcpy(units, " m");
     }
-  while( HIptr );
-
-  return 0;  // For now. Later we may use this for an error code.
+    p = new instr_label( x_pos, 25, 40, 10,
+                        get_altitude,
+                        "%5.0f",
+                        "Altitude ",
+                        units,
+                        1.0,
+                        HUDS_TOP,
+                        RIGHT_JUST,
+                        SMALL,
+                        0,
+                        TRUE );
+    HUD_deque.push_front( p );
+
+    p = new instr_label( x_pos, 10, 60, 10,
+                        get_heading,
+                        "%5.1f",
+                        "Heading  ",
+                        " Deg",
+                        1.0,
+                        HUDS_TOP,
+                        RIGHT_JUST,
+                        SMALL,
+                        0,
+                        TRUE );
+    HUD_deque.push_front( p );
+
+    return 0;  // For now. Later we may use this for an error code.
 }
 
 int global_day_night_switch = DAY;
@@ -1025,14 +764,11 @@ void fgUpdateHUD( void ) {
 
   glLineWidth(1);
 
-  deque < instr_item * > :: iterator current;
-  deque < instr_item * > :: iterator last;
+  deque < instr_item * > :: iterator current = HUD_deque.begin();
+  deque < instr_item * > :: iterator last = HUD_deque.end();
 
-  current = HUD_deque.begin();
-  last = HUD_deque.end();
-  while ( current != last ) {
+  for ( ; current != last; ++current ) {
     pHUDInstr = *current;
-    current++;
 
     // for( i = hud_displays; i; --i) { // Draw everything
     // if( HUD_deque.at(i)->enabled()) {
@@ -1098,124 +834,146 @@ void fgUpdateHUD( void ) {
   glPopMatrix();
 }
 
-/* $Log$
-/* Revision 1.20  1998/08/24 20:05:16  curt
-/* Added a second minimalistic HUD.
-/* Added code to display the number of triangles rendered.
-/*
- * Revision 1.19  1998/07/30 23:44:05  curt
- * Tweaks for sgi building.
- *
- * Revision 1.18  1998/07/20 12:47:55  curt
- * Replace the hud rendering for loop (which linearly searches the the hud
- * list to find the entry with the proper position) with a simple linear
- * traversal using an "iterator."
- *
- * Revision 1.17  1998/07/13 21:28:02  curt
- * Converted the aoa scale to a radio altimeter.
- *
- * Revision 1.16  1998/07/13 21:00:47  curt
- * Integrated Charlies latest HUD updates.
- * Wrote access functions for current fgOPTIONS.
- *
- * Revision 1.15  1998/07/08 14:41:08  curt
- * Renamed polar3d.h to polar3d.hxx
- *
- * Revision 1.14  1998/07/06 21:31:20  curt
- * Removed an extraneous ^M.
- *
- * Revision 1.13  1998/07/03 13:16:28  curt
- * Added Charlie Hotchkiss's HUD updates and improvementes.
- *
- * Revision 1.11  1998/06/05 18:17:10  curt
- * Added the declaration of memmove needed by the stl which apparently
- * solaris only defines for cc compilations and not for c++ (__STDC__)
- *
- * Revision 1.10  1998/05/17 16:58:12  curt
- * Added a View Frustum Culling ratio display to the hud.
- *
- * Revision 1.9  1998/05/16 13:04:14  curt
- * New updates from Charlie Hotchkiss.
- *
- * Revision 1.8  1998/05/13 18:27:54  curt
- * Added an fov to hud display.
- *
- * Revision 1.7  1998/05/11 18:13:11  curt
- * Complete C++ rewrite of all cockpit code by Charlie Hotchkiss.
- *
- * Revision 1.22  1998/04/18 04:14:02  curt
- * Moved fg_debug.c to it's own library.
- *
- * Revision 1.21  1998/04/03 21:55:28  curt
- * Converting to Gnu autoconf system.
- * Tweaks to hud.c
- *
- * Revision 1.20  1998/03/09 22:48:40  curt
- * Minor "formatting" tweaks.
- *
- * Revision 1.19  1998/02/23 20:18:28  curt
- * Incorporated Michele America's hud changes.
- *
- * Revision 1.18  1998/02/21 14:53:10  curt
- * Added Charlie's HUD changes.
- *
- * Revision 1.17  1998/02/20 00:16:21  curt
- * Thursday's tweaks.
- *
- * Revision 1.16  1998/02/19 13:05:49  curt
- * Incorporated some HUD tweaks from Michelle America.
- * Tweaked the sky's sunset/rise colors.
- * Other misc. tweaks.
- *
- * Revision 1.15  1998/02/16 13:38:39  curt
- * Integrated changes from Charlie Hotchkiss.
- *
- * Revision 1.14  1998/02/12 21:59:41  curt
- * Incorporated code changes contributed by Charlie Hotchkiss
- * <chotchkiss@namg.us.anritsu.com>
- *
- * Revision 1.12  1998/02/09 15:07:48  curt
- * Minor tweaks.
- *
- * Revision 1.11  1998/02/07 15:29:34  curt
- * Incorporated HUD changes and struct/typedef changes from Charlie Hotchkiss
- * <chotchkiss@namg.us.anritsu.com>
- *
- * Revision 1.10  1998/02/03 23:20:14  curt
- * Lots of little tweaks to fix various consistency problems discovered by
- * Solaris' CC.  Fixed a bug in fg_debug.c with how the fgPrintf() wrapper
- * passed arguments along to the real printf().  Also incorporated HUD changes
- * by Michele America.
- *
- * Revision 1.9  1998/01/31 00:43:04  curt
- * Added MetroWorks patches from Carmen Volpe.
- *
- * Revision 1.8  1998/01/27 00:47:51  curt
- * Incorporated Paul Bleisch's <bleisch@chromatic.com> new debug message
- * system and commandline/config file processing code.
- *
- * Revision 1.7  1998/01/19 18:40:20  curt
- * Tons of little changes to clean up the code and to remove fatal errors
- * when building with the c++ compiler.
- *
- * Revision 1.6  1997/12/15 23:54:34  curt
- * Add xgl wrappers for debugging.
- * Generate terrain normals on the fly.
- *
- * Revision 1.5  1997/12/10 22:37:39  curt
- * Prepended "fg" on the name of all global structures that didn't have it yet.
- * i.e. "struct WEATHER {}" became "struct fgWEATHER {}"
- *
- * Revision 1.4  1997/09/23 00:29:32  curt
- * Tweaks to get things to compile with gcc-win32.
- *
- * Revision 1.3  1997/09/05 14:17:26  curt
- * More tweaking with stars.
- *
- * Revision 1.2  1997/09/04 02:17:30  curt
- * Shufflin' stuff.
- *
- * Revision 1.1  1997/08/29 18:03:22  curt
- * Initial revision.
- *
- */
+// $Log$
+// Revision 1.27  1998/11/06 21:17:47  curt
+// Converted to new logstream debugging facility.  This allows release
+// builds with no messages at all (and no performance impact) by using
+// the -DFG_NDEBUG flag.
+//
+// Revision 1.26  1998/11/03 12:33:11  curt
+// Display ft or m in mini-hud next to altitude.
+//
+// Revision 1.25  1998/10/17 01:33:57  curt
+// C++ ifying ...
+//
+// Revision 1.24  1998/10/16 23:27:25  curt
+// C++-ifying.
+//
+// Revision 1.23  1998/10/16 00:53:00  curt
+// Mods to display a bit more info when mini-hud is active.
+//
+// Revision 1.22  1998/09/29 14:56:31  curt
+// c++-ified comments.
+//
+// Revision 1.21  1998/09/29 02:01:07  curt
+// Added a "rate of climb" indicator.
+//
+// Revision 1.20  1998/08/24 20:05:16  curt
+// Added a second minimalistic HUD.
+// Added code to display the number of triangles rendered.
+//
+// Revision 1.19  1998/07/30 23:44:05  curt
+// Tweaks for sgi building.
+//
+// Revision 1.18  1998/07/20 12:47:55  curt
+// Replace the hud rendering for loop (which linearly searches the the hud
+// list to find the entry with the proper position) with a simple linear
+// traversal using an "iterator."
+//
+// Revision 1.17  1998/07/13 21:28:02  curt
+// Converted the aoa scale to a radio altimeter.
+//
+// Revision 1.16  1998/07/13 21:00:47  curt
+// Integrated Charlies latest HUD updates.
+// Wrote access functions for current fgOPTIONS.
+//
+// Revision 1.15  1998/07/08 14:41:08  curt
+// Renamed polar3d.h to polar3d.hxx
+//
+// Revision 1.14  1998/07/06 21:31:20  curt
+// Removed an extraneous ^M.
+//
+// Revision 1.13  1998/07/03 13:16:28  curt
+// Added Charlie Hotchkiss's HUD updates and improvementes.
+//
+// Revision 1.11  1998/06/05 18:17:10  curt
+// Added the declaration of memmove needed by the stl which apparently
+// solaris only defines for cc compilations and not for c++ (__STDC__)
+//
+// Revision 1.10  1998/05/17 16:58:12  curt
+// Added a View Frustum Culling ratio display to the hud.
+//
+// Revision 1.9  1998/05/16 13:04:14  curt
+// New updates from Charlie Hotchkiss.
+//
+// Revision 1.8  1998/05/13 18:27:54  curt
+// Added an fov to hud display.
+//
+// Revision 1.7  1998/05/11 18:13:11  curt
+// Complete C++ rewrite of all cockpit code by Charlie Hotchkiss.
+//
+// Revision 1.22  1998/04/18 04:14:02  curt
+// Moved fg_debug.c to it's own library.
+//
+// Revision 1.21  1998/04/03 21:55:28  curt
+// Converting to Gnu autoconf system.
+// Tweaks to hud.c
+//
+// Revision 1.20  1998/03/09 22:48:40  curt
+// Minor "formatting" tweaks.
+//
+// Revision 1.19  1998/02/23 20:18:28  curt
+// Incorporated Michele America's hud changes.
+//
+// Revision 1.18  1998/02/21 14:53:10  curt
+// Added Charlie's HUD changes.
+//
+// Revision 1.17  1998/02/20 00:16:21  curt
+// Thursday's tweaks.
+//
+// Revision 1.16  1998/02/19 13:05:49  curt
+// Incorporated some HUD tweaks from Michelle America.
+// Tweaked the sky's sunset/rise colors.
+// Other misc. tweaks.
+//
+// Revision 1.15  1998/02/16 13:38:39  curt
+// Integrated changes from Charlie Hotchkiss.
+//
+// Revision 1.14  1998/02/12 21:59:41  curt
+// Incorporated code changes contributed by Charlie Hotchkiss
+// <chotchkiss@namg.us.anritsu.com>
+//
+// Revision 1.12  1998/02/09 15:07:48  curt
+// Minor tweaks.
+//
+// Revision 1.11  1998/02/07 15:29:34  curt
+// Incorporated HUD changes and struct/typedef changes from Charlie Hotchkiss
+// <chotchkiss@namg.us.anritsu.com>
+//
+// Revision 1.10  1998/02/03 23:20:14  curt
+// Lots of little tweaks to fix various consistency problems discovered by
+// Solaris' CC.  Fixed a bug in fg_debug.c with how the fgPrintf() wrapper
+// passed arguments along to the real printf().  Also incorporated HUD changes
+// by Michele America.
+//
+// Revision 1.9  1998/01/31 00:43:04  curt
+// Added MetroWorks patches from Carmen Volpe.
+//
+// Revision 1.8  1998/01/27 00:47:51  curt
+// Incorporated Paul Bleisch's <bleisch@chromatic.com> new debug message
+// system and commandline/config file processing code.
+//
+// Revision 1.7  1998/01/19 18:40:20  curt
+// Tons of little changes to clean up the code and to remove fatal errors
+// when building with the c++ compiler.
+//
+// Revision 1.6  1997/12/15 23:54:34  curt
+// Add xgl wrappers for debugging.
+// Generate terrain normals on the fly.
+//
+// Revision 1.5  1997/12/10 22:37:39  curt
+// Prepended "fg" on the name of all global structures that didn't have it yet.
+// i.e. "struct WEATHER {}" became "struct fgWEATHER {}"
+//
+// Revision 1.4  1997/09/23 00:29:32  curt
+// Tweaks to get things to compile with gcc-win32.
+//
+// Revision 1.3  1997/09/05 14:17:26  curt
+// More tweaking with stars.
+//
+// Revision 1.2  1997/09/04 02:17:30  curt
+// Shufflin' stuff.
+//
+// Revision 1.1  1997/08/29 18:03:22  curt
+// Initial revision.
+//