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flightgear/src/Cockpit/cockpit.cxx

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// cockpit.cxx -- routines to draw a cockpit (initial draft)
//
// Written by Michele America, started September 1997.
//
// Copyright (C) 1997 Michele F. America - nomimarketing@mail.telepac.pt
//
// 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.
//
// $Id$
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#ifdef HAVE_WINDOWS_H
# include <windows.h>
#endif
#include <GL/glut.h>
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <simgear/constants.h>
#include <simgear/debug/logstream.hxx>
#include <simgear/math/polar3d.hxx>
#include <simgear/misc/props.hxx>
#include <simgear/timing/sg_time.hxx>
#include <Aircraft/aircraft.hxx>
#include <Include/general.hxx>
#include <FDM/ADA.hxx>
#include <Main/globals.hxx>
#include <Main/fg_props.hxx>
#include <Main/viewmgr.hxx>
#include <Scenery/scenery.hxx>
#include <Time/fg_timer.hxx>
#include <GUI/gui.h>
#include "cockpit.hxx"
// This is a structure that contains all data related to
// cockpit/panel/hud system
static pCockpit ac_cockpit;
// The following routines obtain information concerntin the aircraft's
// current state and return it to calling instrument display routines.
// They should eventually be member functions of the aircraft.
//
float get_latitude( void )
{
return current_aircraft.fdm_state->get_Latitude() * SGD_RADIANS_TO_DEGREES;
}
float get_lat_min( void )
{
double a, d;
a = current_aircraft.fdm_state->get_Latitude() * SGD_RADIANS_TO_DEGREES;
if (a < 0.0) {
a = -a;
}
d = (double) ( (int) a);
float lat_min = (a - d) * 60.0;
return lat_min;
}
float get_longitude( void )
{
return current_aircraft.fdm_state->get_Longitude() * SGD_RADIANS_TO_DEGREES;
}
char*
get_formated_gmt_time( void )
{
static char buf[32];
const struct tm *p = globals->get_time_params()->getGmt();
sprintf( buf, "%d/%d/%4d %d:%02d:%02d",
p->tm_mon+1, p->tm_mday, 1900 + p->tm_year,
p->tm_hour, p->tm_min, p->tm_sec);
return buf;
}
float get_long_min( void )
{
double a, d;
a = current_aircraft.fdm_state->get_Longitude() * SGD_RADIANS_TO_DEGREES;
if (a < 0.0) {
a = -a;
}
d = (double) ( (int) a);
float lon_min = (a - d) * 60.0;
return lon_min;
}
float get_throttleval( void )
{
// Hack limiting to one engine
return globals->get_controls()->get_throttle( 0 );
}
float get_aileronval( void )
{
return globals->get_controls()->get_aileron();
}
float get_elevatorval( void )
{
return globals->get_controls()->get_elevator();
}
float get_elev_trimval( void )
{
return globals->get_controls()->get_elevator_trim();
}
float get_rudderval( void )
{
return globals->get_controls()->get_rudder();
}
float get_speed( void )
{
static const SGPropertyNode * speedup_node = fgGetNode("/sim/speed-up");
float speed = current_aircraft.fdm_state->get_V_calibrated_kts()
* speedup_node->getIntValue();
return speed;
}
float get_mach(void)
{
return current_aircraft.fdm_state->get_Mach_number();
}
float get_aoa( void )
{
return current_aircraft.fdm_state->get_Alpha() * SGD_RADIANS_TO_DEGREES;
}
float get_roll( void )
{
return current_aircraft.fdm_state->get_Phi();
}
float get_pitch( void )
{
return current_aircraft.fdm_state->get_Theta();
}
float get_heading( void )
{
return current_aircraft.fdm_state->get_Psi() * SGD_RADIANS_TO_DEGREES;
}
float get_altitude( void )
{
static const SGPropertyNode *startup_units_node
= fgGetNode("/sim/startup/units");
float altitude;
if ( !strcmp(startup_units_node->getStringValue(), "feet") ) {
altitude = current_aircraft.fdm_state->get_Altitude();
} else {
altitude = (current_aircraft.fdm_state->get_Altitude()
* SG_FEET_TO_METER);
}
return altitude;
}
float get_agl( void )
{
static const SGPropertyNode *startup_units_node
= fgGetNode("/sim/startup/units");
float agl;
if ( !strcmp(startup_units_node->getStringValue(), "feet") ) {
agl = (current_aircraft.fdm_state->get_Altitude()
- globals->get_scenery()->get_cur_elev() * SG_METER_TO_FEET);
} else {
agl = (current_aircraft.fdm_state->get_Altitude() * SG_FEET_TO_METER
- globals->get_scenery()->get_cur_elev());
}
return agl;
}
float get_sideslip( void )
{
return current_aircraft.fdm_state->get_Beta();
}
float get_frame_rate( void )
{
return general.get_frame_rate();
}
float get_fov( void )
{
return globals->get_current_view()->get_fov();
}
float get_vfc_ratio( void )
{
// float vfc = current_view.get_vfc_ratio();
// return (vfc);
return 0.0;
}
float get_vfc_tris_drawn ( void )
{
// float rendered = current_view.get_tris_rendered();
// return (rendered);
return 0.0;
}
float get_vfc_tris_culled ( void )
{
// float culled = current_view.get_tris_culled();
// return (culled);
return 0.0;
}
float get_climb_rate( void )
{
static const SGPropertyNode *startup_units_node
= fgGetNode("/sim/startup/units");
float climb_rate;
if ( !strcmp(startup_units_node->getStringValue(), "feet") ) {
climb_rate = current_aircraft.fdm_state->get_Climb_Rate() * 60.0;
} else {
climb_rate = current_aircraft.fdm_state->get_Climb_Rate() * SG_FEET_TO_METER * 60.0;
}
return climb_rate;
}
float get_view_direction( void )
{
double view_off = SGD_2PI - globals->get_current_view()->getHeadingOffset_deg() * SGD_DEGREES_TO_RADIANS;
double view = ( current_aircraft.fdm_state->get_Psi() + view_off)
* SGD_RADIANS_TO_DEGREES;
if(view > 360.)
view -= 360.;
else if(view<0.)
view += 360.;
return view;
}
// $$$ begin - added, VS Renganathan 13 Oct 2K
// #ifdef FIGHTER_HUD
float get_Vx ( void )
{
// Curt dont comment this and return zero. - Ranga
// Please remove comments from get_V_..() function in flight.hxx
float Vxx = current_aircraft.fdm_state->get_V_north_rel_ground();
return Vxx;
}
float get_Vy ( void )
{
// Curt dont comment this and return zero. - Ranga
// Please remove comments from get_V_..() function in flight.hxx
float Vyy = current_aircraft.fdm_state->get_V_east_rel_ground();
return Vyy;
}
float get_Vz ( void )
{
// Curt dont comment this and return zero. - Ranga
// Please remove comments from get_V_..() function in flight.hxx
float Vzz = current_aircraft.fdm_state->get_V_down_rel_ground();
return Vzz;
}
float get_Ax ( void )
{
float Ax = current_aircraft.fdm_state->get_V_dot_north();
return Ax;
}
float get_Ay ( void )
{
float Ay = current_aircraft.fdm_state->get_V_dot_east();
return Ay;
}
float get_Az ( void )
{
float Az = current_aircraft.fdm_state->get_V_dot_down();
return Az;
}
float get_anzg ( void )
{
float anzg = current_aircraft.fdm_state->get_N_Z_cg();
return anzg;
}
int get_iaux1 (void)
{
FGADA *fdm = (FGADA *)current_aircraft.fdm_state;
return fdm->get_iaux(1);
}
int get_iaux2 (void)
{
FGADA *fdm = (FGADA *)current_aircraft.fdm_state;
return fdm->get_iaux(2);
}
int get_iaux3 (void)
{
FGADA *fdm = (FGADA *)current_aircraft.fdm_state;
return fdm->get_iaux(3);
}
int get_iaux4 (void)
{
FGADA *fdm = (FGADA *)current_aircraft.fdm_state;
return fdm->get_iaux(4);
}
int get_iaux5 (void)
{
FGADA *fdm = (FGADA *)current_aircraft.fdm_state;
return fdm->get_iaux(5);
}
int get_iaux6 (void)
{
FGADA *fdm = (FGADA *)current_aircraft.fdm_state;
return fdm->get_iaux(6);
}
int get_iaux7 (void)
{
FGADA *fdm = (FGADA *)current_aircraft.fdm_state;
return fdm->get_iaux(7);
}
int get_iaux8 (void)
{
FGADA *fdm = (FGADA *)current_aircraft.fdm_state;
return fdm->get_iaux(8);
}
int get_iaux9 (void)
{
FGADA *fdm = (FGADA *)current_aircraft.fdm_state;
return fdm->get_iaux(9);
}
int get_iaux10 (void)
{
FGADA *fdm = (FGADA *)current_aircraft.fdm_state;
return fdm->get_iaux(10);
}
int get_iaux11 (void)
{
FGADA *fdm = (FGADA *)current_aircraft.fdm_state;
return fdm->get_iaux(11);
}
int get_iaux12 (void)
{
FGADA *fdm = (FGADA *)current_aircraft.fdm_state;
return fdm->get_iaux(12);
}
float get_aux1 (void)
{
FGADA *fdm = (FGADA *)current_aircraft.fdm_state;
return fdm->get_daux(1);
}
float get_aux2 (void)
{
FGADA *fdm = (FGADA *)current_aircraft.fdm_state;
return fdm->get_daux(2);
}
float get_aux3 (void)
{
FGADA *fdm = (FGADA *)current_aircraft.fdm_state;
return fdm->get_daux(3);
}
float get_aux4 (void)
{
FGADA *fdm = (FGADA *)current_aircraft.fdm_state;
return fdm->get_daux(4);
}
float get_aux5 (void)
{
FGADA *fdm = (FGADA *)current_aircraft.fdm_state;
return fdm->get_daux(5);
}
float get_aux6 (void)
{
FGADA *fdm = (FGADA *)current_aircraft.fdm_state;
return fdm->get_daux(6);
}
float get_aux7 (void)
{
FGADA *fdm = (FGADA *)current_aircraft.fdm_state;
return fdm->get_daux(7);
}
float get_aux8 (void)
{
FGADA *fdm = (FGADA *)current_aircraft.fdm_state;
return fdm->get_daux(8);
}
float get_aux9 (void)
{
FGADA *fdm = (FGADA *)current_aircraft.fdm_state;
return fdm->get_faux(1);
}
float get_aux10 (void)
{
FGADA *fdm = (FGADA *)current_aircraft.fdm_state;
return fdm->get_faux(2);
}
float get_aux11 (void)
{
FGADA *fdm = (FGADA *)current_aircraft.fdm_state;
return fdm->get_faux(3);
}
float get_aux12 (void)
{
FGADA *fdm = (FGADA *)current_aircraft.fdm_state;
return fdm->get_faux(4);
}
float get_aux13 (void)
{
FGADA *fdm = (FGADA *)current_aircraft.fdm_state;
return fdm->get_faux(5);
}
float get_aux14 (void)
{
FGADA *fdm = (FGADA *)current_aircraft.fdm_state;
return fdm->get_faux(6);
}
float get_aux15 (void)
{
FGADA *fdm = (FGADA *)current_aircraft.fdm_state;
return fdm->get_faux(7);
}
float get_aux16 (void)
{
FGADA *fdm = (FGADA *)current_aircraft.fdm_state;
return fdm->get_faux(8);
}
float get_aux17 (void)
{
FGADA *fdm = (FGADA *)current_aircraft.fdm_state;
return fdm->get_faux(9);
}
float get_aux18 (void)
{
FGADA *fdm = (FGADA *)current_aircraft.fdm_state;
return fdm->get_faux(10);
}
// #endif
// $$$ end - added, VS Renganathan 13 Oct 2K
#ifdef NOT_USED
/****************************************************************************/
/* Convert degrees to dd mm'ss.s" (DMS-Format) */
/****************************************************************************/
char *dmshh_format(double degrees)
{
static char buf[16];
int deg_part;
int min_part;
double sec_part;
if (degrees < 0)
degrees = -degrees;
deg_part = degrees;
min_part = 60.0 * (degrees - deg_part);
sec_part = 3600.0 * (degrees - deg_part - min_part / 60.0);
/* Round off hundredths */
if (sec_part + 0.005 >= 60.0)
sec_part -= 60.0, min_part += 1;
if (min_part >= 60)
min_part -= 60, deg_part += 1;
sprintf(buf,"%02d*%02d %05.2f",deg_part,min_part,sec_part);
return buf;
}
#endif // 0
/************************************************************************
Convert degrees to dd mm.mmm' (DMM-Format)
Description: Converts using a round-off factor tailored to the required
precision of the minutes field (three decimal places). Round-off
prevents function from returning a minutes value of 60.
Input arguments: Coordinate value in decimal degrees
************************************************************************/
static char *toDM(float dd)
{
static char dm[16];
double tempdd;
double mn;
double sign = 1;
int deg;
if (dd < 0) {
sign = -1;
}
/* round for minutes expressed to three decimal places */
tempdd = fabs(dd) + (5.0E-4 / 60.0);
deg = (int)tempdd;
mn = fabs( (tempdd - (double)(deg)) * 60.0 - 4.999E-4 );
deg *= (int)sign;
sprintf(dm, "%d*%06.3f", deg, mn);
return dm;
}
/************************************************************************
Convert degrees to dd mm'ss.s'' (DMS-Format)
Description: Converts using a round-off factor tailored to the required
precision of the seconds field (one decimal place). Round-off
prevents function from returning a seconds value of 60.
Input arguments: Coordinate value in decimal degrees
************************************************************************/
static char *toDMS(float dd)
{
static char dms[16];
double tempdd, tempmin;
int deg;
int mn;
double sec;
double sign = 1;
if(dd < 0) {
sign = -1;
}
/* round up for seconds expressed to one decimal place */
tempdd = fabs(dd) + (0.05 / 3600.0);
deg = (int)tempdd;
tempmin = (tempdd - (double)(deg)) * 60.0;
mn = (int)tempmin;
sec = fabs( (tempmin - (double)(mn)) * 60.0 - 0.049 );
deg *= (int)sign;
sprintf(dms, "%d*%02d %04.1f", deg, mn, sec);
return dms;
}
// Have to set the LatLon display type
//static char *(*fgLatLonFormat)(float) = toDM;
static char *(*fgLatLonFormat)(float);
char *coord_format_lat(float latitude)
{
static char buf[16];
sprintf(buf,"%s%c",
// dmshh_format(latitude),
// toDMS(latitude),
// toDM(latitude),
fgLatLonFormat(latitude),
latitude > 0 ? 'N' : 'S');
return buf;
}
char *coord_format_lon(float longitude)
{
static char buf[80];
sprintf(buf,"%s%c",
// dmshh_format(longitude),
// toDMS(longitude),
// toDM(longitude),
fgLatLonFormat(longitude),
longitude > 0 ? 'E' : 'W');
return buf;
}
void fgLatLonFormatToggle( puObject *)
{
static int toggle = 0;
if ( toggle )
fgLatLonFormat = toDM;
else
fgLatLonFormat = toDMS;
toggle = ~toggle;
}
#ifdef NOT_USED
char *coord_format_latlon(double latitude, double longitude)
{
static char buf[1024];
sprintf(buf,"%s%c %s%c",
dmshh_format(latitude),
latitude > 0 ? 'N' : 'S',
dmshh_format(longitude),
longitude > 0 ? 'E' : 'W');
return buf;
}
#endif
bool fgCockpitInit( fgAIRCRAFT *cur_aircraft )
{
SG_LOG( SG_COCKPIT, SG_INFO, "Initializing cockpit subsystem" );
// cockpit->code = 1; /* It will be aircraft dependent */
// cockpit->status = 0;
// If aircraft has HUD specified we will get the specs from its def
// file. For now we will depend upon hard coding in hud?
// We must insure that the existing instrument link is purged.
// This is done by deleting the links in the list.
// HI_Head is now a null pointer so we can generate a new list from the
// current aircraft.
fgHUDInit( cur_aircraft );
ac_cockpit = new fg_Cockpit();
// Have to set the LatLon display type
fgLatLonFormat = toDM;
SG_LOG( SG_COCKPIT, SG_INFO,
" Code " << ac_cockpit->code() << " Status "
<< ac_cockpit->status() );
return true;
}
void fgCockpitUpdate( void ) {
SG_LOG( SG_COCKPIT, SG_DEBUG,
"Cockpit: code " << ac_cockpit->code() << " status "
<< ac_cockpit->status() );
static const SGPropertyNode * xsize_node = fgGetNode("/sim/startup/xsize");
static const SGPropertyNode * ysize_node = fgGetNode("/sim/startup/ysize");
static const SGPropertyNode * hud_visibility_node
= fgGetNode("/sim/hud/visibility");
int iwidth = xsize_node->getIntValue();
int iheight = ysize_node->getIntValue();
float width = iwidth;
// float height = iheight;
// FIXME: inefficient
if ( hud_visibility_node->getBoolValue() ) {
// This will check the global hud linked list pointer.
// If these is anything to draw it will.
fgUpdateHUD();
}
#define DISPLAY_COUNTER
#ifdef DISPLAY_COUNTER
else
{
char buf[64];
float fps = get_frame_rate();
// float tris = fps * get_vfc_tris_drawn();
// float culled = fps * get_vfc_tris_culled();
// sprintf(buf,"%-4.1f %7.0f %7.0f", fps, tris, culled);
sprintf(buf,"%-5.1f", fps);
glMatrixMode( GL_PROJECTION );
glPushMatrix();
glLoadIdentity();
gluOrtho2D( 0, iwidth, 0, iheight );
glMatrixMode( GL_MODELVIEW );
glPushMatrix();
glLoadIdentity();
glDisable( GL_DEPTH_TEST );
glDisable( GL_LIGHTING );
glColor3f( 0.9, 0.4, 0.2 );
guiFnt.drawString( buf,
int(width - guiFnt.getStringWidth(buf) - 10),
10 );
glEnable( GL_DEPTH_TEST );
glEnable( GL_LIGHTING );
glMatrixMode( GL_PROJECTION );
glPopMatrix();
glMatrixMode( GL_MODELVIEW );
glPopMatrix();
}
#endif // #ifdef DISPLAY_COUNTER
glViewport( 0, 0, iwidth, iheight );
}
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