525 lines
12 KiB
C++
525 lines
12 KiB
C++
// cockpit.cxx -- routines to draw a cockpit (initial draft)
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//
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// Written by Michele America, started September 1997.
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//
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// Copyright (C) 1997 Michele F. America - nomimarketing@mail.telepac.pt
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//
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// This program is free software; you can redistribute it and/or
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// modify it under the terms of the GNU General Public License as
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// published by the Free Software Foundation; either version 2 of the
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// License, or (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful, but
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// WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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// General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with this program; if not, write to the Free Software
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// Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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//
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// $Id$
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#ifdef HAVE_CONFIG_H
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# include <config.h>
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#endif
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#ifdef HAVE_WINDOWS_H
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# include <windows.h>
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#endif
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#include <GL/glut.h>
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#include <simgear/xgl/xgl.h>
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#include <stdlib.h>
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#include <stdio.h>
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#include <string.h>
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#include <simgear/constants.h>
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#include <simgear/debug/logstream.hxx>
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#include <simgear/math/fg_random.h>
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#include <simgear/math/polar3d.hxx>
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#include <Aircraft/aircraft.hxx>
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#include <Include/general.hxx>
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#include <Main/options.hxx>
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#include <Main/views.hxx>
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#include <Scenery/scenery.hxx>
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#include <Time/fg_timer.hxx>
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#include <GUI/gui.h>
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#include "cockpit.hxx"
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// This is a structure that contains all data related to
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// cockpit/panel/hud system
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static pCockpit ac_cockpit;
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// The following routines obtain information concerntin the aircraft's
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// current state and return it to calling instrument display routines.
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// They should eventually be member functions of the aircraft.
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//
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float get_latitude( void )
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{
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double lat;
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lat = current_aircraft.fdm_state->get_Latitude() * RAD_TO_DEG;
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float flat = lat;
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return(flat);
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}
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float get_lat_min( void )
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{
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double a, d;
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a = current_aircraft.fdm_state->get_Latitude() * RAD_TO_DEG;
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if (a < 0.0) {
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a = -a;
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}
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d = (double) ( (int) a);
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float lat_min = (a - d) * 60.0;
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return(lat_min );
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}
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float get_longitude( void )
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{
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double lon;
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lon = current_aircraft.fdm_state->get_Longitude() * RAD_TO_DEG;
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float flon = lon;
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return(flon);
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}
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char*
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get_formated_gmt_time( void )
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{
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static char buf[32];
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FGTime *t = FGTime::cur_time_params;
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const struct tm *p = t->getGmt();
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sprintf( buf, "%d/%d/%4d %d:%02d:%02d",
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p->tm_mon+1, p->tm_mday, 1900 + p->tm_year,
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p->tm_hour, p->tm_min, p->tm_sec);
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return buf;
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}
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float get_long_min( void )
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{
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double a, d;
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a = current_aircraft.fdm_state->get_Longitude() * RAD_TO_DEG;
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if (a < 0.0) {
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a = -a;
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}
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d = (double) ( (int) a);
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float lon_min = (a - d) * 60.0;
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return(lon_min);
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}
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float get_throttleval( void )
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{
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float throttle = controls.get_throttle( 0 );
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return (throttle); // Hack limiting to one engine
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}
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float get_aileronval( void )
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{
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float aileronval = controls.get_aileron();
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return (aileronval);
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}
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float get_elevatorval( void )
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{
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float elevator_val = (float)controls.get_elevator();
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return elevator_val;
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}
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float get_elev_trimval( void )
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{
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float elevatorval = controls.get_elevator_trim();
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return (elevatorval);
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}
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float get_rudderval( void )
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{
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float rudderval = controls.get_rudder();
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return (rudderval);
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}
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float get_speed( void )
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{
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// Make an explicit function call.
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float speed = current_aircraft.fdm_state->get_V_calibrated_kts()
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* current_options.get_speed_up();
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return( speed );
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}
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float get_mach(void)
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{
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float mach=current_aircraft.fdm_state->get_Mach_number();
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return mach;
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}
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float get_aoa( void )
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{
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float aoa = current_aircraft.fdm_state->get_Alpha() * RAD_TO_DEG;
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return( aoa );
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}
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float get_roll( void )
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{
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float roll = current_aircraft.fdm_state->get_Phi();
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return( roll );
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}
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float get_pitch( void )
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{
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float pitch = current_aircraft.fdm_state->get_Theta();
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return( pitch );
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}
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float get_heading( void )
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{
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float heading = (current_aircraft.fdm_state->get_Psi() * RAD_TO_DEG);
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return( heading );
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}
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float get_altitude( void )
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{
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// FGState *f;
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// double rough_elev;
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// current_aircraft.fdm_state
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// rough_elev = mesh_altitude(f->get_Longitude() * RAD_TO_ARCSEC,
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// f->get_Latitude() * RAD_TO_ARCSEC);
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float altitude;
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if ( current_options.get_units() == fgOPTIONS::FG_UNITS_FEET ) {
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altitude = current_aircraft.fdm_state->get_Altitude();
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} else {
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altitude = (current_aircraft.fdm_state->get_Altitude() * FEET_TO_METER);
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}
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return altitude;
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}
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float get_agl( void )
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{
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float agl;
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if ( current_options.get_units() == fgOPTIONS::FG_UNITS_FEET ) {
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agl = (current_aircraft.fdm_state->get_Altitude()
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- scenery.cur_elev * METER_TO_FEET);
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} else {
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agl = (current_aircraft.fdm_state->get_Altitude() * FEET_TO_METER
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- scenery.cur_elev);
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}
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return agl;
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}
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float get_sideslip( void )
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{
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float sideslip = current_aircraft.fdm_state->get_Beta();
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return( sideslip );
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}
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float get_frame_rate( void )
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{
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float frame_rate = general.get_frame_rate();
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return (frame_rate);
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}
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float get_fov( void )
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{
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float fov = current_options.get_fov();
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return (fov);
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}
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float get_vfc_ratio( void )
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{
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// float vfc = current_view.get_vfc_ratio();
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// return (vfc);
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return 0.0;
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}
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float get_vfc_tris_drawn ( void )
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{
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// float rendered = current_view.get_tris_rendered();
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// return (rendered);
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return 0.0;
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}
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float get_vfc_tris_culled ( void )
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{
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// float culled = current_view.get_tris_culled();
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// return (culled);
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return 0.0;
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}
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float get_climb_rate( void )
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{
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float climb_rate;
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if ( current_options.get_units() == fgOPTIONS::FG_UNITS_FEET ) {
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climb_rate = current_aircraft.fdm_state->get_Climb_Rate() * 60.0;
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} else {
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climb_rate = current_aircraft.fdm_state->get_Climb_Rate() * FEET_TO_METER * 60.0;
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}
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return (climb_rate);
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}
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float get_view_direction( void )
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{
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double view;
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view = FG_2PI - current_view.get_view_offset();
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view = ( current_aircraft.fdm_state->get_Psi() + view) * RAD_TO_DEG;
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if(view > 360.)
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view -= 360.;
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else if(view<0.)
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view += 360.;
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float fview = view;
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return( fview );
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}
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#ifdef NOT_USED
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/****************************************************************************/
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/* Convert degrees to dd mm'ss.s" (DMS-Format) */
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/****************************************************************************/
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char *dmshh_format(double degrees)
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{
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static char buf[16];
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int deg_part;
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int min_part;
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double sec_part;
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if (degrees < 0)
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degrees = -degrees;
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deg_part = degrees;
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min_part = 60.0 * (degrees - deg_part);
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sec_part = 3600.0 * (degrees - deg_part - min_part / 60.0);
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/* Round off hundredths */
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if (sec_part + 0.005 >= 60.0)
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sec_part -= 60.0, min_part += 1;
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if (min_part >= 60)
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min_part -= 60, deg_part += 1;
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sprintf(buf,"%02d*%02d %05.2f",deg_part,min_part,sec_part);
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return buf;
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}
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#endif // 0
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/****************************************************************************/
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/* Convert degrees to dd mm'ss.s'' (DMS-Format) */
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/****************************************************************************/
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static char *toDMS(float a)
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{
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int neg = 0;
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float d, m, s;
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static char dms[16];
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if (a < 0.0f) {
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a = -a;
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neg = 1;
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}
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d = (float) ((int) a);
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a = (a - d) * 60.0f;
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m = (float) ((int) a);
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s = (a - m) * 60.0f;
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if (s > 59.5f) {
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s = 0.0f;
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m += 1.0f;
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}
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if (m > 59.5f) {
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m = 0.0f;
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d += 1.0f;
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}
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if (neg)
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d = -d;
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sprintf(dms, "%.0f*%02.0f %04.1f", d, m, s);
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return dms;
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}
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/****************************************************************************/
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/* Convert degrees to dd mm.mmm' (DMM-Format) */
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/****************************************************************************/
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static char *toDM(float a)
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{
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int neg = 0;
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float d, m;
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static char dm[16];
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if (a < 0.0f) {
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a = -a;
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neg = 1;
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}
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d = (float) ( (int) a);
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m = (a - d) * 60.0f;
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if (m > 59.5f) {
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m = 0.0f;
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d += 1.0f;
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}
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if (neg) d = -d;
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sprintf(dm, "%.0f*%06.3f", d, m);
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return dm;
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}
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// Have to set the LatLon display type
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//static char *(*fgLatLonFormat)(float) = toDM;
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static char *(*fgLatLonFormat)(float);
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char *coord_format_lat(float latitude)
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{
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static char buf[16];
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sprintf(buf,"%s%c",
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// dmshh_format(latitude),
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// toDMS(latitude),
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// toDM(latitude),
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fgLatLonFormat(latitude),
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latitude > 0 ? 'N' : 'S');
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return buf;
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}
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char *coord_format_lon(float longitude)
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{
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static char buf[80];
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sprintf(buf,"%s%c",
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// dmshh_format(longitude),
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// toDMS(longitude),
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// toDM(longitude),
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fgLatLonFormat(longitude),
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longitude > 0 ? 'E' : 'W');
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return buf;
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}
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void fgLatLonFormatToggle( puObject *)
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{
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static int toggle = 0;
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if ( toggle )
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fgLatLonFormat = toDM;
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else
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fgLatLonFormat = toDMS;
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toggle = ~toggle;
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}
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#ifdef NOT_USED
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char *coord_format_latlon(double latitude, double longitude)
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{
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static char buf[1024];
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sprintf(buf,"%s%c %s%c",
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dmshh_format(latitude),
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latitude > 0 ? 'N' : 'S',
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dmshh_format(longitude),
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longitude > 0 ? 'E' : 'W');
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return buf;
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}
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#endif
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bool fgCockpitInit( fgAIRCRAFT *cur_aircraft )
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{
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FG_LOG( FG_COCKPIT, FG_INFO, "Initializing cockpit subsystem" );
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// cockpit->code = 1; /* It will be aircraft dependent */
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// cockpit->status = 0;
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// If aircraft has HUD specified we will get the specs from its def
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// file. For now we will depend upon hard coding in hud?
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// We must insure that the existing instrument link is purged.
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// This is done by deleting the links in the list.
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// HI_Head is now a null pointer so we can generate a new list from the
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// current aircraft.
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fgHUDInit( cur_aircraft );
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ac_cockpit = new fg_Cockpit();
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// Have to set the LatLon display type
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fgLatLonFormat = toDM;
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FG_LOG( FG_COCKPIT, FG_INFO,
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" Code " << ac_cockpit->code() << " Status "
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<< ac_cockpit->status() );
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return true;
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}
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void fgCockpitUpdate( void ) {
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FG_LOG( FG_COCKPIT, FG_DEBUG,
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"Cockpit: code " << ac_cockpit->code() << " status "
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<< ac_cockpit->status() );
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int iwidth = current_view.get_winWidth();
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int iheight = current_view.get_winHeight();
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float width = iwidth;
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float height = iheight;
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if ( current_options.get_hud_status() ) {
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// This will check the global hud linked list pointer.
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// If these is anything to draw it will.
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fgUpdateHUD();
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}
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#define DISPLAY_COUNTER
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#ifdef DISPLAY_COUNTER
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else
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{
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char buf[64];
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float fps = get_frame_rate();
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// float tris = fps * get_vfc_tris_drawn();
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// float culled = fps * get_vfc_tris_culled();
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// sprintf(buf,"%-4.1f %7.0f %7.0f", fps, tris, culled);
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sprintf(buf,"%-5.1f", fps);
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glMatrixMode(GL_PROJECTION);
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glPushMatrix();
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glLoadIdentity();
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gluOrtho2D(0, width, 0, height);
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glMatrixMode(GL_MODELVIEW);
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glPushMatrix();
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glLoadIdentity();
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glDisable(GL_DEPTH_TEST);
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glDisable(GL_LIGHTING);
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glColor3f (0.9, 0.4, 0.2);
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guiFnt.drawString( buf,
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// width/2 - guiFnt.getStringWidth(buf)/2,
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int(width - guiFnt.getStringWidth(buf) - 10),
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10 );
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glEnable(GL_DEPTH_TEST);
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glEnable(GL_LIGHTING);
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glMatrixMode(GL_PROJECTION);
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glPopMatrix();
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glMatrixMode(GL_MODELVIEW);
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glPopMatrix();
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}
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#endif // #ifdef DISPLAY_COUNTER
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xglViewport( 0, 0, iwidth, iheight );
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current_panel->update();
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}
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