1 /**************************************************************************
2 * hud.cxx -- hud defines and prototypes
4 * Written by Michele America, started September 1997.
6 * Copyright (C) 1997 Michele F. America - micheleamerica@geocities.com
8 * This program is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU General Public License as
10 * published by the Free Software Foundation; either version 2 of the
11 * License, or (at your option) any later version.
13 * This program is distributed in the hope that it will be useful, but
14 * WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 * General Public License for more details.
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, write to the Free Software
20 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
23 * (Log is kept at end of this file)
24 **************************************************************************/
40 # include <values.h> // for MAXINT
43 #include <Aircraft/aircraft.h>
44 #include <Debug/fg_debug.h>
45 #include <Include/fg_constants.h>
46 #include <Main/options.hxx>
47 #include <Math/fg_random.h>
48 #include <Math/mat3.h>
49 #include <Math/polar3d.hxx>
50 #include <Scenery/scenery.hxx>
51 #include <Time/fg_timer.hxx>
52 #include <Weather/weather.h>
58 extern void *memmove(void *, const void *, size_t);
63 // The following routines obtain information concerntin the aircraft's
64 // current state and return it to calling instrument display routines.
65 // They should eventually be member functions of the aircraft.
68 deque< instr_item * > HUD_deque;
74 locRECT( UINT left, UINT top, UINT right, UINT bottom);
75 RECT get_rect(void) { return rect;}
78 locRECT :: locRECT( UINT left, UINT top, UINT right, UINT bottom)
88 void drawOneLine( UINT x1, UINT y1, UINT x2, UINT y2)
96 void drawOneLine( RECT &rect)
99 glVertex2f(rect.left, rect.top);
100 glVertex2f(rect.right, rect.bottom);
105 // The following code deals with painting the "instrument" on the display
107 /* textString - Bitmap font string */
109 void textString( int x, int y, char *msg, void *font ){
112 glutBitmapCharacter(font, *msg);
117 /* strokeString - Stroke font string */
119 void strokeString(int x, int y, char *msg, void *font, float theta)
125 glRotatef(theta * RAD_TO_DEG, 0.0, 0.0, 1.0);
126 xx = x * cos(theta) + y * sin( theta );
127 yy = y * cos(theta) - x * sin( theta );
128 glTranslatef( xx, yy, 0);
129 glScalef(.1, .1, 0.0);
131 glutStrokeCharacter(font, *msg);
137 //========================= End of Class Implementations===================
140 // Constructs a HUD object and then adds in instruments. At the present
141 // the instruments are hard coded into the routine. Ultimately these need
142 // to be defined by the aircraft's instrumentation records so that the
143 // display for a Piper Cub doesn't show the speed range of a North American
144 // mustange and the engine readouts of a B36!
149 int fgHUDInit( fgAIRCRAFT * /* current_aircraft */ )
154 fgPrintf( FG_COCKPIT, FG_INFO, "Initializing current aircraft HUD\n" );
156 HUD_deque.erase( HUD_deque.begin(), HUD_deque.end()); // empty the HUD deque
161 // For now lets just hardcode the hud here.
162 // In the future, hud information has to come from the same place
163 // aircraft information came from.
165 // fgHUDSetTimeMode( hud, NIGHT );
166 // fgHUDSetBrightness( hud, BRT_LIGHT );
173 HIptr = (instr_item *) new fgTBI_instr( 270, 100, 60, 10 );
176 case 1: // Artificial Horizon
177 HIptr = (instr_item *) new HudLadder( 240, 195, 120, 180 );
181 HIptr = (instr_item *) new hud_card( 130,
186 HUDS_LEFT | HUDS_VERT,
197 case 3: // Radio Altimeter
198 HIptr = (instr_item *) new hud_card( 420,
203 HUDS_LEFT | HUDS_VERT,
213 case 4: // GYRO COMPASS
214 HIptr = (instr_item *) new hud_card( 200,
230 HIptr = (instr_item *) new hud_card( 460,
235 HUDS_RIGHT | HUDS_VERT,
246 HIptr = (instr_item *) new guage_instr( 250, // x
250 get_aileronval, // data source
251 HUDS_BOTTOM | HUDS_NOTEXT,
258 HIptr = (instr_item *) new guage_instr( 170, // x
262 get_elevatorval, // data source
263 HUDS_RIGHT | HUDS_VERT | HUDS_NOTEXT,
264 -100.0, // Scale data
270 HIptr = (instr_item *) new guage_instr( 250, // x
274 get_rudderval, // data source
275 HUDS_TOP | HUDS_NOTEXT,
282 HIptr = (instr_item *) new guage_instr( 100, // x
286 get_throttleval, // data source
287 HUDS_VERT | HUDS_RIGHT | HUDS_NOTEXT,
293 case 10: // Digital KIAS
294 HIptr = (instr_item *) new instr_label ( 110,
310 case 11: // Digital Altimeter
311 HIptr = (instr_item *) new instr_label ( 110,
327 case 12: // Roll indication diagnostic
328 HIptr = (instr_item *) new instr_label ( 110,
344 case 13: // Angle of attack diagnostic
345 HIptr = (instr_item *) new instr_label ( 440,
362 HIptr = (instr_item *) new instr_label ( 440,
379 HIptr = (instr_item *) new instr_label ( 440,
396 HIptr = (instr_item *) new instr_label( 440,
413 HIptr = (instr_item *) new instr_label( 440,
430 HIptr = (instr_item *) new instr_label( 440,
448 HIptr = (instr_item *) new instr_label( 10,
465 HIptr = (instr_item *) new instr_label( 10,
482 HIptr = (instr_item *) new instr_label( 10,
501 if( HIptr ) { // Anything to install?
502 HUD_deque.insert( HUD_deque.begin(), HIptr);
508 return 0; // For now. Later we may use this for an error code.
511 int global_day_night_switch = DAY;
513 void HUD_brightkey( bool incr_bright )
515 instr_item *pHUDInstr = HUD_deque[0];
516 int brightness = pHUDInstr->get_brightness();
518 if( current_options.get_hud_status() ) {
520 switch (brightness) {
522 current_options.set_hud_status(0);
526 brightness = BRT_LIGHT;
530 brightness = BRT_MEDIUM;
534 brightness = BRT_DARK;
538 brightness = BRT_BLACK;
542 switch (brightness) {
544 brightness = BRT_MEDIUM;
548 brightness = BRT_DARK;
552 brightness = BRT_BLACK;
557 current_options.set_hud_status(0);
562 current_options.set_hud_status(1);
564 if( DAY == global_day_night_switch ) {
565 brightness = BRT_BLACK;
568 brightness = BRT_DARK;
569 global_day_night_switch = DAY;
573 if( NIGHT == global_day_night_switch ) {
574 brightness = BRT_DARK;
577 brightness = BRT_MEDIUM;
578 global_day_night_switch = NIGHT;
582 pHUDInstr->SetBrightness( brightness );
587 // Performs a once around the list of calls to instruments installed in
588 // the HUD object with requests for redraw. Kinda. It will when this is
591 void fgUpdateHUD( void ) {
594 // int day_night_sw = current_aircraft.controls->day_night_switch;
595 int day_night_sw = global_day_night_switch;
596 int hud_displays = HUD_deque.size();
597 instr_item *pHUDInstr;
599 if( !hud_displays ) { // Trust everyone, but ALWAYS cut the cards!
603 pHUDInstr = HUD_deque[0];
604 brightness = pHUDInstr->get_brightness();
605 // brightness = HUD_deque.at(0)->get_brightness();
607 glMatrixMode(GL_PROJECTION);
611 gluOrtho2D(0, 640, 0, 480);
612 glMatrixMode(GL_MODELVIEW);
616 glColor3f(1.0, 1.0, 1.0);
619 glDisable(GL_DEPTH_TEST);
620 glDisable(GL_LIGHTING);
624 deque < instr_item * > :: iterator current;
625 deque < instr_item * > :: iterator last;
627 current = HUD_deque.begin();
628 last = HUD_deque.end();
629 while ( current != last ) {
630 pHUDInstr = *current;
633 // for( i = hud_displays; i; --i) { // Draw everything
634 // if( HUD_deque.at(i)->enabled()) {
635 // pHUDInstr = HUD_deque[i - 1];
636 if( pHUDInstr->enabled()) {
637 // We should to respond to a dial instead
638 // or as well to the of time of day. Of
639 // course, we have no dial!
640 if( day_night_sw == DAY) {
641 switch (brightness) {
643 glColor3f (0.1, 0.9, 0.1);
647 glColor3f (0.1, 0.7, 0.0);
651 glColor3f (0.0, 0.5, 0.0);
655 glColor3f( 0.0, 0.0, 0.0);
662 if( day_night_sw == NIGHT) {
663 switch (brightness) {
665 glColor3f (0.9, 0.1, 0.1);
669 glColor3f (0.7, 0.0, 0.1);
674 glColor3f (0.5, 0.0, 0.0);
677 else { // Just in case default
678 glColor3f (0.1, 0.9, 0.1);
681 // fgPrintf( FG_COCKPIT, FG_DEBUG, "HUD Code %d Status %d\n",
682 // hud->code, hud->status );
684 // HUD_deque.at(i)->draw(); // Responsible for broken or fixed variants.
685 // No broken displays honored just now.
689 glEnable(GL_DEPTH_TEST);
690 glEnable(GL_LIGHTING);
691 glMatrixMode(GL_PROJECTION);
693 glMatrixMode(GL_MODELVIEW);
698 /* Revision 1.18 1998/07/20 12:47:55 curt
699 /* Replace the hud rendering for loop (which linearly searches the the hud
700 /* list to find the entry with the proper position) with a simple linear
701 /* traversal using an "iterator."
703 * Revision 1.17 1998/07/13 21:28:02 curt
704 * Converted the aoa scale to a radio altimeter.
706 * Revision 1.16 1998/07/13 21:00:47 curt
707 * Integrated Charlies latest HUD updates.
708 * Wrote access functions for current fgOPTIONS.
710 * Revision 1.15 1998/07/08 14:41:08 curt
711 * Renamed polar3d.h to polar3d.hxx
713 * Revision 1.14 1998/07/06 21:31:20 curt
714 * Removed an extraneous ^M.
716 * Revision 1.13 1998/07/03 13:16:28 curt
717 * Added Charlie Hotchkiss's HUD updates and improvementes.
719 * Revision 1.11 1998/06/05 18:17:10 curt
720 * Added the declaration of memmove needed by the stl which apparently
721 * solaris only defines for cc compilations and not for c++ (__STDC__)
723 * Revision 1.10 1998/05/17 16:58:12 curt
724 * Added a View Frustum Culling ratio display to the hud.
726 * Revision 1.9 1998/05/16 13:04:14 curt
727 * New updates from Charlie Hotchkiss.
729 * Revision 1.8 1998/05/13 18:27:54 curt
730 * Added an fov to hud display.
732 * Revision 1.7 1998/05/11 18:13:11 curt
733 * Complete C++ rewrite of all cockpit code by Charlie Hotchkiss.
735 * Revision 1.22 1998/04/18 04:14:02 curt
736 * Moved fg_debug.c to it's own library.
738 * Revision 1.21 1998/04/03 21:55:28 curt
739 * Converting to Gnu autoconf system.
742 * Revision 1.20 1998/03/09 22:48:40 curt
743 * Minor "formatting" tweaks.
745 * Revision 1.19 1998/02/23 20:18:28 curt
746 * Incorporated Michele America's hud changes.
748 * Revision 1.18 1998/02/21 14:53:10 curt
749 * Added Charlie's HUD changes.
751 * Revision 1.17 1998/02/20 00:16:21 curt
754 * Revision 1.16 1998/02/19 13:05:49 curt
755 * Incorporated some HUD tweaks from Michelle America.
756 * Tweaked the sky's sunset/rise colors.
757 * Other misc. tweaks.
759 * Revision 1.15 1998/02/16 13:38:39 curt
760 * Integrated changes from Charlie Hotchkiss.
762 * Revision 1.14 1998/02/12 21:59:41 curt
763 * Incorporated code changes contributed by Charlie Hotchkiss
764 * <chotchkiss@namg.us.anritsu.com>
766 * Revision 1.12 1998/02/09 15:07:48 curt
769 * Revision 1.11 1998/02/07 15:29:34 curt
770 * Incorporated HUD changes and struct/typedef changes from Charlie Hotchkiss
771 * <chotchkiss@namg.us.anritsu.com>
773 * Revision 1.10 1998/02/03 23:20:14 curt
774 * Lots of little tweaks to fix various consistency problems discovered by
775 * Solaris' CC. Fixed a bug in fg_debug.c with how the fgPrintf() wrapper
776 * passed arguments along to the real printf(). Also incorporated HUD changes
777 * by Michele America.
779 * Revision 1.9 1998/01/31 00:43:04 curt
780 * Added MetroWorks patches from Carmen Volpe.
782 * Revision 1.8 1998/01/27 00:47:51 curt
783 * Incorporated Paul Bleisch's <bleisch@chromatic.com> new debug message
784 * system and commandline/config file processing code.
786 * Revision 1.7 1998/01/19 18:40:20 curt
787 * Tons of little changes to clean up the code and to remove fatal errors
788 * when building with the c++ compiler.
790 * Revision 1.6 1997/12/15 23:54:34 curt
791 * Add xgl wrappers for debugging.
792 * Generate terrain normals on the fly.
794 * Revision 1.5 1997/12/10 22:37:39 curt
795 * Prepended "fg" on the name of all global structures that didn't have it yet.
796 * i.e. "struct WEATHER {}" became "struct fgWEATHER {}"
798 * Revision 1.4 1997/09/23 00:29:32 curt
799 * Tweaks to get things to compile with gcc-win32.
801 * Revision 1.3 1997/09/05 14:17:26 curt
802 * More tweaking with stars.
804 * Revision 1.2 1997/09/04 02:17:30 curt
807 * Revision 1.1 1997/08/29 18:03:22 curt