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flightgear/src/Cockpit/cockpit.cxx
curt 016cd935ef Updates from David Megginson:
I've done some substantial reengineering of the 2D panel: except for the
radios, the whole panel is built from a large table now.  I'd be
grateful if you could add these changes to the main distribution.

Since I always like to provide some eye-candy with my updates, I've
fixed the ADF gauge to be more usable by slimming the needle and adding
markings every 45 deg (you'll need to use the attached textures).
2000-06-14 20:59:51 +00:00

526 lines
12 KiB
C++

// 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 <simgear/xgl/xgl.h>
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <simgear/constants.h>
#include <simgear/debug/logstream.hxx>
#include <simgear/math/fg_random.h>
#include <simgear/math/polar3d.hxx>
#include <Aircraft/aircraft.hxx>
#include <Include/general.hxx>
#include <Main/options.hxx>
#include <Main/views.hxx>
#include <Scenery/scenery.hxx>
#include <Time/fg_timer.hxx>
#include <Time/fg_time.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 )
{
double lat;
lat = current_aircraft.fdm_state->get_Latitude() * RAD_TO_DEG;
float flat = lat;
return(flat);
}
float get_lat_min( void )
{
double a, d;
a = current_aircraft.fdm_state->get_Latitude() * RAD_TO_DEG;
if (a < 0.0) {
a = -a;
}
d = (double) ( (int) a);
float lat_min = (a - d) * 60.0;
return(lat_min );
}
float get_longitude( void )
{
double lon;
lon = current_aircraft.fdm_state->get_Longitude() * RAD_TO_DEG;
float flon = lon;
return(flon);
}
char*
get_formated_gmt_time( void )
{
static char buf[32];
FGTime *t = FGTime::cur_time_params;
const struct tm *p = t->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() * RAD_TO_DEG;
if (a < 0.0) {
a = -a;
}
d = (double) ( (int) a);
float lon_min = (a - d) * 60.0;
return(lon_min);
}
float get_throttleval( void )
{
float throttle = controls.get_throttle( 0 );
return (throttle); // Hack limiting to one engine
}
float get_aileronval( void )
{
float aileronval = controls.get_aileron();
return (aileronval);
}
float get_elevatorval( void )
{
float elevator_val = (float)controls.get_elevator();
return elevator_val;
}
float get_elev_trimval( void )
{
float elevatorval = controls.get_elevator_trim();
return (elevatorval);
}
float get_rudderval( void )
{
float rudderval = controls.get_rudder();
return (rudderval);
}
float get_speed( void )
{
// Make an explicit function call.
float speed = current_aircraft.fdm_state->get_V_calibrated_kts()
* current_options.get_speed_up();
return( speed );
}
float get_mach(void)
{
float mach=current_aircraft.fdm_state->get_Mach_number();
return mach;
}
float get_aoa( void )
{
float aoa = current_aircraft.fdm_state->get_Alpha() * RAD_TO_DEG;
return( aoa );
}
float get_roll( void )
{
float roll = current_aircraft.fdm_state->get_Phi();
return( roll );
}
float get_pitch( void )
{
float pitch = current_aircraft.fdm_state->get_Theta();
return( pitch );
}
float get_heading( void )
{
float heading = (current_aircraft.fdm_state->get_Psi() * RAD_TO_DEG);
return( heading );
}
float get_altitude( void )
{
// FGState *f;
// double rough_elev;
// current_aircraft.fdm_state
// rough_elev = mesh_altitude(f->get_Longitude() * RAD_TO_ARCSEC,
// f->get_Latitude() * RAD_TO_ARCSEC);
float altitude;
if ( current_options.get_units() == fgOPTIONS::FG_UNITS_FEET ) {
altitude = current_aircraft.fdm_state->get_Altitude();
} else {
altitude = (current_aircraft.fdm_state->get_Altitude() * FEET_TO_METER);
}
return altitude;
}
float get_agl( void )
{
float agl;
if ( current_options.get_units() == fgOPTIONS::FG_UNITS_FEET ) {
agl = (current_aircraft.fdm_state->get_Altitude()
- scenery.cur_elev * METER_TO_FEET);
} else {
agl = (current_aircraft.fdm_state->get_Altitude() * FEET_TO_METER
- scenery.cur_elev);
}
return agl;
}
float get_sideslip( void )
{
float sideslip = current_aircraft.fdm_state->get_Beta();
return( sideslip );
}
float get_frame_rate( void )
{
float frame_rate = general.get_frame_rate();
return (frame_rate);
}
float get_fov( void )
{
float fov = current_options.get_fov();
return (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 )
{
float climb_rate;
if ( current_options.get_units() == fgOPTIONS::FG_UNITS_FEET ) {
climb_rate = current_aircraft.fdm_state->get_Climb_Rate() * 60.0;
} else {
climb_rate = current_aircraft.fdm_state->get_Climb_Rate() * FEET_TO_METER * 60.0;
}
return (climb_rate);
}
float get_view_direction( void )
{
double view;
view = FG_2PI - current_view.get_view_offset();
view = ( current_aircraft.fdm_state->get_Psi() + view) * RAD_TO_DEG;
if(view > 360.)
view -= 360.;
else if(view<0.)
view += 360.;
float fview = view;
return( fview );
}
#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'ss.s'' (DMS-Format) */
/****************************************************************************/
static char *toDMS(float a)
{
int neg = 0;
float d, m, s;
static char dms[16];
if (a < 0.0f) {
a = -a;
neg = 1;
}
d = (float) ((int) a);
a = (a - d) * 60.0f;
m = (float) ((int) a);
s = (a - m) * 60.0f;
if (s > 59.5f) {
s = 0.0f;
m += 1.0f;
}
if (m > 59.5f) {
m = 0.0f;
d += 1.0f;
}
if (neg)
d = -d;
sprintf(dms, "%.0f*%02.0f %04.1f", d, m, s);
return dms;
}
/****************************************************************************/
/* Convert degrees to dd mm.mmm' (DMM-Format) */
/****************************************************************************/
static char *toDM(float a)
{
int neg = 0;
float d, m;
static char dm[16];
if (a < 0.0f) {
a = -a;
neg = 1;
}
d = (float) ( (int) a);
m = (a - d) * 60.0f;
if (m > 59.5f) {
m = 0.0f;
d += 1.0f;
}
if (neg) d = -d;
sprintf(dm, "%.0f*%06.3f", d, m);
return dm;
}
// 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 )
{
FG_LOG( FG_COCKPIT, FG_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;
FG_LOG( FG_COCKPIT, FG_INFO,
" Code " << ac_cockpit->code() << " Status "
<< ac_cockpit->status() );
return true;
}
void fgCockpitUpdate( void ) {
FG_LOG( FG_COCKPIT, FG_DEBUG,
"Cockpit: code " << ac_cockpit->code() << " status "
<< ac_cockpit->status() );
int iwidth = current_view.get_winWidth();
int iheight = current_view.get_winHeight();
float width = iwidth;
float height = iheight;
if ( current_options.get_hud_status() ) {
// 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, width, 0, height);
glMatrixMode(GL_MODELVIEW);
glPushMatrix();
glLoadIdentity();
glDisable(GL_DEPTH_TEST);
glDisable(GL_LIGHTING);
glColor3f (0.9, 0.4, 0.2);
guiFnt.drawString( buf,
// width/2 - guiFnt.getStringWidth(buf)/2,
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
xglViewport( 0, 0, iwidth, iheight );
current_panel->update();
}