flightgear/Main/GLUTkey.cxx

/**************************************************************************
 * GLUTkey.c -- handle GLUT keyboard events
 *
 * Written by Curtis Olson, started May 1997.
 *
 * Copyright (C) 1997  Curtis L. Olson  - curt@infoplane.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
#  include <config.h>
#endif

#ifdef HAVE_WINDOWS_H
#  include <windows.h>                     
#endif

#include <GL/glut.h>
#include <XGL/xgl.h>
#include <stdio.h>
#include <stdlib.h>

#include <Aircraft/aircraft.h>
#include <Astro/orbits.hxx>
#include <Astro/sun.hxx>
#include <Astro/sky.hxx>
#include <Autopilot/autopilot.h> // Added autopilot.h to list, Jeff Goeke-Smith
#include <Cockpit/hud.hxx>
#include <Debug/fg_debug.h>
#include <GUI/gui.h>
#include <Include/fg_constants.h>
#include <PUI/pu.h>
#include <Time/light.hxx>
#include <Weather/weather.h>

#include "GLUTkey.hxx"
#include "options.hxx"
#include "views.hxx"

#if defined(FX) && defined(XMESA)
#  include <GL/xmesa.h>
   static int fullscreen = 1;
#endif


// Force an update of the sky and lighting parameters
static void local_update_sky_and_lighting_params( void ) {
    fgSunInit();
    fgLightUpdate();
    fgSkyColorsInit();
}


/* Handle keyboard events */
void GLUTkey(unsigned char k, int x, int y) {
    fgCONTROLS *c;
    fgFLIGHT *f;
    fgTIME *t;
    fgVIEW *v;
    struct fgWEATHER *w;
    float fov, tmp;
    int status;

    c = current_aircraft.controls;
    f = current_aircraft.flight;
    t = &cur_time_params;
    v = &current_view;
    w = &current_weather;

    fgPrintf( FG_INPUT, FG_DEBUG, "Key hit = %d", k);
    puKeyboard(k, PU_DOWN );

    if ( GLUT_ACTIVE_ALT && glutGetModifiers() ) {
	fgPrintf( FG_INPUT, FG_DEBUG, " SHIFTED\n");
	switch (k) {
	case 49: /* numeric keypad 1 */
	    v->goal_view_offset = FG_PI * 0.75;
	    return;
	case 50: /* numeric keypad 2 */
	    v->goal_view_offset = FG_PI;
	    return;
	case 51: /* numeric keypad 3 */
	    v->goal_view_offset = FG_PI * 1.25;
	    return;
	case 52: /* numeric keypad 4 */
	    v->goal_view_offset = FG_PI * 0.50;
	    return;
	case 54: /* numeric keypad 6 */
	    v->goal_view_offset = FG_PI * 1.50;
	    return;
	case 55: /* numeric keypad 7 */
	    v->goal_view_offset = FG_PI * 0.25;
	    return;
	case 56: /* numeric keypad 8 */
	    v->goal_view_offset = 0.00;
	    return;
	case 57: /* numeric keypad 9 */
	    v->goal_view_offset = FG_PI * 1.75;
	    return;
	case 72: /* H key */
	    // status = current_options.get_hud_status();
	    // current_options.set_hud_status(!status);
	    HUD_brightkey( true );
	    return;
	case 77: /* M key */
	    t->warp -= 60;
	    local_update_sky_and_lighting_params();
	    return;
	case 84: /* T key */
	    t->warp_delta -= 30;
	    local_update_sky_and_lighting_params();
	    return;
	case 87: /* W key */
#if defined(FX) && !defined(WIN32)
	    fullscreen = ( !fullscreen );
#if defined(XMESA_FX_FULLSCREEN) && defined(XMESA_FX_WINDOW)
	    XMesaSetFXmode(fullscreen ? XMESA_FX_FULLSCREEN : XMESA_FX_WINDOW);
#endif
#endif
	    return;
	case 88: /* X key */
	    fov = current_options.get_fov();
	    fov *= 1.05;
	    if ( fov > FG_FOV_MAX ) {
		fov = FG_FOV_MAX;
	    }
	    current_options.set_fov(fov);
	    v->update_fov = TRUE;
	    return;
	case 90: /* Z key */
	    tmp = fgWeatherGetVisibility();   /* in meters */
	    tmp /= 1.10;
	    fgWeatherSetVisibility( tmp );
	    return;
	// autopilot additions
	case 65: /* A key */
		fgAPSetMode(1);
		return;
	case 83: /* S key */
		fgAPSetMode(0);
		return;
	case 68: /* D key */
		fgAPSetHeading(AP_CURRENT_HEADING);
		return;
	}
    } else {
	fgPrintf( FG_INPUT, FG_DEBUG, "\n");
	switch (k) {
	case 50: /* numeric keypad 2 */
	    fgElevMove(-0.05);
	    return;
	case 56: /* numeric keypad 8 */
	    fgElevMove(0.05);
	    return;
	case 49: /* numeric keypad 1 */
	    fgElevTrimMove(-0.001);
	    return;
	case 55: /* numeric keypad 7 */
	    fgElevTrimMove(0.001);
	    return;
	case 52: /* numeric keypad 4 */
	    fgAileronMove(-0.05);
	    return;
	case 54: /* numeric keypad 6 */
	    fgAileronMove(0.05);
	    return;
	case 48: /* numeric keypad Ins */
	    fgRudderMove(-0.05);
	    return;
	case 13: /* numeric keypad Enter */
	    fgRudderMove(0.05);
	    return;
	case 53: /* numeric keypad 5 */
	    fgAileronSet(0.0);
	    fgElevSet(0.0);
	    fgRudderSet(0.0);
	    return;
	case 57: /* numeric keypad 9 (Pg Up) */
	    fgThrottleMove(0, 0.01);
	    return;
	case 51: /* numeric keypad 3 (Pg Dn) */
	    fgThrottleMove(0, -0.01);
	    return;
	case 104: /* h key */
	    HUD_brightkey( false );
	    return;
	case 109: /* m key */
	    t->warp += 60;
	    local_update_sky_and_lighting_params();
	    return;
	case 112: /* p key */
	    t->pause = !t->pause;
	    // printf position and attitude information
	    fgPrintf( FG_INPUT, FG_INFO,
		      "Lon = %.4f  Lat = %.4f  Altitude = %.1f\n", 
		      FG_Longitude * RAD_TO_DEG,
		      FG_Latitude * RAD_TO_DEG,
		      FG_Altitude * FEET_TO_METER);
	    fgPrintf( FG_INPUT, FG_INFO,
		      "Heading = %.2f  Roll = %.2f  Pitch = %.2f\n", 
		      FG_Psi * RAD_TO_DEG,
		      FG_Phi * RAD_TO_DEG,
		      FG_Theta * RAD_TO_DEG);
	    return;
	case 116: /* t key */
	    t->warp_delta += 30;
	    local_update_sky_and_lighting_params();
	    return;
	case 120: /* X key */
	    fov = current_options.get_fov();
	    fov /= 1.05;
	    if ( fov < FG_FOV_MIN ) {
		fov = FG_FOV_MIN;
	    }
	    current_options.set_fov(fov);
	    v->update_fov = TRUE;
	    return;
	case 122: /* z key */
	    tmp = fgWeatherGetVisibility();   /* in meters */
	    tmp *= 1.10;
	    fgWeatherSetVisibility( tmp );
	    return;
	case 27: /* ESC */
	    // if( fg_DebugOutput ) {
	    //   fclose( fg_DebugOutput );
	    // }
	    fgPrintf( FG_INPUT, FG_EXIT, 
		      "Program exiting normally at user request.\n");
	}
    }
}


/* Handle "special" keyboard events */
void GLUTspecialkey(int k, int x, int y) {
    fgCONTROLS *c;
    fgVIEW *v;

    c = current_aircraft.controls;
    v = &current_view;

    fgPrintf( FG_INPUT, FG_DEBUG, "Special key hit = %d", k);
    puKeyboard(k + PU_KEY_GLUT_SPECIAL_OFFSET, PU_DOWN);

    if ( GLUT_ACTIVE_SHIFT && glutGetModifiers() ) {
	fgPrintf( FG_INPUT, FG_DEBUG, " SHIFTED\n");
	switch (k) {
	case GLUT_KEY_END: /* numeric keypad 1 */
	    v->goal_view_offset = FG_PI * 0.75;
	    return;
	case GLUT_KEY_DOWN: /* numeric keypad 2 */
	    v->goal_view_offset = FG_PI;
	    return;
	case GLUT_KEY_PAGE_DOWN: /* numeric keypad 3 */
	    v->goal_view_offset = FG_PI * 1.25;
	    return;
	case GLUT_KEY_LEFT: /* numeric keypad 4 */
	    v->goal_view_offset = FG_PI * 0.50;
	    return;
	case GLUT_KEY_RIGHT: /* numeric keypad 6 */
	    v->goal_view_offset = FG_PI * 1.50;
	    return;
	case GLUT_KEY_HOME: /* numeric keypad 7 */
	    v->goal_view_offset = FG_PI * 0.25;
	    return;
	case GLUT_KEY_UP: /* numeric keypad 8 */
	    v->goal_view_offset = 0.00;
	    return;
	case GLUT_KEY_PAGE_UP: /* numeric keypad 9 */
	    v->goal_view_offset = FG_PI * 1.75;
	    return;
	}
    } else {
        fgPrintf( FG_INPUT, FG_DEBUG, "\n");
	switch (k) {
	case GLUT_KEY_F10: /* F10 toggles menu on and off... */
	    printf("Invoking call back function");
	    hideMenuButton -> 
		setValue ((int) !(hideMenuButton -> getValue() ) );
	    hideMenuButton -> invokeCallback();
	    //exit(1);
	    return;
	case GLUT_KEY_UP:
	    fgElevMove(0.05);
	    return;
	case GLUT_KEY_DOWN:
	    fgElevMove(-0.05);
	    return;
	case GLUT_KEY_LEFT:
	    fgAileronMove(-0.05);
	    return;
	case GLUT_KEY_RIGHT:
	    fgAileronMove(0.05);
	    return;
	case GLUT_KEY_HOME: /* numeric keypad 1 */
	    fgElevTrimMove(0.001);
	    return;
	case GLUT_KEY_END: /* numeric keypad 7 */
	    fgElevTrimMove(-0.001);
	    return;
	case GLUT_KEY_INSERT: /* numeric keypad Ins */
	    fgRudderMove(-0.05);
	    return;
	case 13: /* numeric keypad Enter */
	    fgRudderMove(0.05);
	    return;
	case 53: /* numeric keypad 5 */
	    fgAileronSet(0.0);
	    fgElevSet(0.0);
	    fgRudderSet(0.0);
	    return;
	case GLUT_KEY_PAGE_UP: /* numeric keypad 9 (Pg Up) */
	    fgThrottleMove(0, 0.01);
	    return;
	case GLUT_KEY_PAGE_DOWN: /* numeric keypad 3 (Pg Dn) */
	    fgThrottleMove(0, -0.01);
	    return;
	}
    }
}


/* $Log$
/* Revision 1.19  1998/08/05 00:19:33  curt
/* Added a local routine to update lighting params every frame when time is
/* accelerated.
/*
 * Revision 1.18  1998/07/30 23:48:24  curt
 * Output position & orientation when pausing.
 * Eliminated libtool use.
 * Added options to specify initial position and orientation.
 * Changed default fov to 55 degrees.
 * Added command line option to start in paused or unpaused state.
 *
 * Revision 1.17  1998/07/27 18:41:23  curt
 * Added a pause command "p"
 * Fixed some initialization order problems between pui and glut.
 * Added an --enable/disable-sound option.
 *
 * Revision 1.16  1998/07/16 17:33:34  curt
 * "H" / "h" now control hud brightness as well with off being one of the
 *   states.
 * Better checking for xmesa/fx 3dfx fullscreen/window support for deciding
 *   whether or not to build in the feature.
 * Translucent menu support.
 * HAVE_AUDIO_SUPPORT -> ENABLE_AUDIO_SUPPORT
 * Use fork() / wait() for playing mp3 init music in background under unix.
 * Changed default tile diameter to 5.
 *
 * Revision 1.15  1998/07/13 21:01:34  curt
 * Wrote access functions for current fgOPTIONS.
 *
 * Revision 1.14  1998/07/06 02:42:02  curt
 * Added support for switching between fullscreen and window mode for
 * Mesa/3dfx/glide.
 *
 * Added a basic splash screen.  Restructured the main loop and top level
 * initialization routines to do this.
 *
 * Hacked in some support for playing a startup mp3 sound file while rest
 * of sim initializes.  Currently only works in Unix using the mpg123 player.
 * Waits for the mpg123 player to finish before initializing internal
 * sound drivers.
 *
 * Revision 1.13  1998/06/27 16:54:32  curt
 * Replaced "extern displayInstruments" with a entry in fgOPTIONS.
 * Don't change the view port when displaying the panel.
 *
 * Revision 1.12  1998/06/12 14:27:26  curt
 * Pui -> PUI, Gui -> GUI.
 *
 * Revision 1.11  1998/06/12 00:57:38  curt
 * Added support for Pui/Gui.
 * Converted fog to GL_FOG_EXP2.
 * Link to static simulator parts.
 * Update runfg.bat to try to be a little smarter.
 *
 * Revision 1.10  1998/05/27 02:24:05  curt
 * View optimizations by Norman Vine.
 *
 * Revision 1.9  1998/05/16 13:05:21  curt
 * Added limits to fov.
 *
 * Revision 1.8  1998/05/13 18:29:56  curt
 * Added a keyboard binding to dynamically adjust field of view.
 * Added a command line option to specify fov.
 * Adjusted terrain color.
 * Root path info moved to fgOPTIONS.
 * Added ability to parse options out of a config file.
 *
 * Revision 1.7  1998/05/07 23:14:14  curt
 * Added "D" key binding to set autopilot heading.
 * Made frame rate calculation average out over last 10 frames.
 * Borland C++ floating point exception workaround.
 * Added a --tile-radius=n option.
 *
 * Revision 1.6  1998/04/28 01:20:20  curt
 * Type-ified fgTIME and fgVIEW.
 * Added a command line option to disable textures.
 *
 * Revision 1.5  1998/04/25 22:06:29  curt
 * Edited cvs log messages in source files ... bad bad bad!
 *
 * Revision 1.4  1998/04/25 20:24:00  curt
 * Cleaned up initialization sequence to eliminate interdependencies
 * between sun position, lighting, and view position.  This creates a
 * valid single pass initialization path.
 *
 * Revision 1.3  1998/04/24 14:19:29  curt
 * Fog tweaks.
 *
 * Revision 1.2  1998/04/24 00:49:17  curt
 * Wrapped "#include <config.h>" in "#ifdef HAVE_CONFIG_H"
 * Trying out some different option parsing code.
 * Some code reorganization.
 *
 * Revision 1.1  1998/04/22 13:25:40  curt
 * C++ - ifing the code.
 * Starting a bit of reorganization of lighting code.
 *
 * Revision 1.33  1998/04/18 04:11:25  curt
 * Moved fg_debug to it's own library, added zlib support.
 *
 * Revision 1.32  1998/04/14 02:21:01  curt
 * Incorporated autopilot heading hold contributed by:  Jeff Goeke-Smith
 * <jgoeke@voyager.net>
 *
 * Revision 1.31  1998/04/08 23:34:05  curt
 * Patch from Durk to fix trim reversal with numlock key active.
 *
 * Revision 1.30  1998/04/03 22:09:02  curt
 * Converting to Gnu autoconf system.
 *
 * Revision 1.29  1998/02/07 15:29:40  curt
 * Incorporated HUD changes and struct/typedef changes from Charlie Hotchkiss
 * <chotchkiss@namg.us.anritsu.com>
 *
 * Revision 1.28  1998/02/03 23:20:23  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 1.27  1998/01/27 00:47:55  curt
 * Incorporated Paul Bleisch's <pbleisch@acm.org> new debug message
 * system and commandline/config file processing code.
 *
 * Revision 1.26  1998/01/19 19:27:07  curt
 * Merged in make system changes from Bob Kuehne <rpk@sgi.com>
 * This should simplify things tremendously.
 *
 * Revision 1.25  1998/01/05 18:44:34  curt
 * Add an option to advance/decrease time from keyboard.
 *
 * Revision 1.24  1997/12/30 16:36:46  curt
 * Merged in Durk's changes ...
 *
 * Revision 1.23  1997/12/15 23:54:44  curt
 * Add xgl wrappers for debugging.
 * Generate terrain normals on the fly.
 *
 * Revision 1.22  1997/12/10 22:37:45  curt
 * Prepended "fg" on the name of all global structures that didn't have it yet.
 * i.e. "struct WEATHER {}" became "struct fgWEATHER {}"
 *
 * Revision 1.21  1997/08/27 21:32:23  curt
 * Restructured view calculation code.  Added stars.
 *
 * Revision 1.20  1997/08/27 03:30:13  curt
 * Changed naming scheme of basic shared structures.
 *
 * Revision 1.19  1997/08/25 20:27:21  curt
 * Merged in initial HUD and Joystick code.
 *
 * Revision 1.18  1997/08/22 21:34:38  curt
 * Doing a bit of reorganizing and house cleaning.
 *
 * Revision 1.17  1997/07/19 22:34:02  curt
 * Moved PI definitions to ../constants.h
 * Moved random() stuff to ../Utils/ and renamed fg_random()
 *
 * Revision 1.16  1997/07/18 23:41:24  curt
 * Tweaks for building with Cygnus Win32 compiler.
 *
 * Revision 1.15  1997/07/16 20:04:47  curt
 * Minor tweaks to aid Win32 port.
 *
 * Revision 1.14  1997/07/12 03:50:20  curt
 * Added an #include <Windows32/Base.h> to help compiling for Win32
 *
 * Revision 1.13  1997/06/25 15:39:46  curt
 * Minor changes to compile with rsxnt/win32.
 *
 * Revision 1.12  1997/06/21 17:12:52  curt
 * Capitalized subdirectory names.
 *
 * Revision 1.11  1997/06/18 04:10:31  curt
 * A couple more runway tweaks ...
 *
 * Revision 1.10  1997/06/18 02:21:23  curt
 * Hacked in a runway
 *
 * Revision 1.9  1997/06/02 03:40:06  curt
 * A tiny bit more view tweaking.
 *
 * Revision 1.8  1997/06/02 03:01:38  curt
 * Working on views (side, front, back, transitions, etc.)
 *
 * Revision 1.7  1997/05/31 19:16:25  curt
 * Elevator trim added.
 *
 * Revision 1.6  1997/05/31 04:13:52  curt
 * WE CAN NOW FLY!!!
 *
 * Continuing work on the LaRCsim flight model integration.
 * Added some MSFS-like keyboard input handling.
 *
 * Revision 1.5  1997/05/30 23:26:19  curt
 * Added elevator/aileron controls.
 *
 * Revision 1.4  1997/05/27 17:44:31  curt
 * Renamed & rearranged variables and routines.   Added some initial simple
 * timer/alarm routines so the flight model can be updated on a regular 
 * interval.
 *
 * Revision 1.3  1997/05/23 15:40:25  curt
 * Added GNU copyright headers.
 * Fog now works!
 *
 * Revision 1.2  1997/05/23 00:35:12  curt
 * Trying to get fog to work ...
 *
 * Revision 1.1  1997/05/21 15:57:50  curt
 * Renamed due to added GLUT support.
 *
 * Revision 1.2  1997/05/19 18:22:41  curt
 * Parameter tweaking ... starting to stub in fog support.
 *
 * Revision 1.1  1997/05/16 16:05:51  curt
 * Initial revision.
 *
 */