1 /**************************************************************************
2 * slew.c -- the "slew" flight model
4 * Written by Curtis Olson, started May 1997.
6 * Copyright (C) 1997 Curtis L. Olson - curt@infoplane.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 **************************************************************************/
29 #include <Flight/Slew/slew.h>
30 #include <Flight/flight.h>
31 #include <Aircraft/aircraft.h>
32 #include <Controls/controls.h>
33 #include <Include/fg_constants.h>
36 /* reset flight params to a specific position */
37 void fgSlewInit(double pos_x, double pos_y, double pos_z, double heading) {
40 f = current_aircraft.flight;
64 /* update position based on inputs, positions, velocities, etc. */
65 void fgSlewUpdate( void ) {
69 f = current_aircraft.flight;
70 c = current_aircraft.controls;
72 /* f->Psi += ( c->aileron / 8 );
73 if ( f->Psi > FG_2PI ) {
75 } else if ( f->Psi < 0 ) {
81 f->pos_x = f->pos_x + (cos(f->Psi) * f->vel_x);
82 f->pos_y = f->pos_y + (sin(f->Psi) * f->vel_x); */
87 /* Revision 1.13 1998/04/25 22:06:29 curt
88 /* Edited cvs log messages in source files ... bad bad bad!
90 * Revision 1.12 1998/04/08 23:35:30 curt
91 * Tweaks to Gnu automake/autoconf system.
93 * Revision 1.11 1998/02/07 15:29:39 curt
94 * Incorporated HUD changes and struct/typedef changes from Charlie Hotchkiss
95 * <chotchkiss@namg.us.anritsu.com>
97 * Revision 1.10 1998/01/27 00:47:53 curt
98 * Incorporated Paul Bleisch's <pbleisch@acm.org> new debug message
99 * system and commandline/config file processing code.
101 * Revision 1.9 1998/01/19 19:27:06 curt
102 * Merged in make system changes from Bob Kuehne <rpk@sgi.com>
103 * This should simplify things tremendously.
105 * Revision 1.8 1998/01/19 18:40:30 curt
106 * Tons of little changes to clean up the code and to remove fatal errors
107 * when building with the c++ compiler.
109 * Revision 1.7 1997/12/15 23:54:42 curt
110 * Add xgl wrappers for debugging.
111 * Generate terrain normals on the fly.
113 * Revision 1.6 1997/08/27 03:30:11 curt
114 * Changed naming scheme of basic shared structures.
116 * Revision 1.5 1997/07/19 22:35:06 curt
117 * Moved fiddled with PI to avoid compiler warnings.
119 * Revision 1.4 1997/06/21 17:12:51 curt
120 * Capitalized subdirectory names.
122 * Revision 1.3 1997/05/29 22:40:00 curt
123 * Working on incorporating the LaRCsim flight model.
125 * Revision 1.2 1997/05/29 12:30:19 curt
126 * Some initial mods to work better in a timer environment.
128 * Revision 1.1 1997/05/29 02:29:42 curt
129 * Moved to their own directory.
131 * Revision 1.2 1997/05/23 15:40:37 curt
132 * Added GNU copyright headers.
134 * Revision 1.1 1997/05/16 16:04:45 curt