1 // slew.cxx -- the "slew" flight model
3 // Written by Curtis Olson, started May 1997.
5 // Copyright (C) 1997 Curtis L. Olson - curt@infoplane.com
7 // This program is free software; you can redistribute it and/or
8 // modify it under the terms of the GNU General Public License as
9 // published by the Free Software Foundation; either version 2 of the
10 // License, or (at your option) any later version.
12 // This program is distributed in the hope that it will be useful, but
13 // WITHOUT ANY WARRANTY; without even the implied warranty of
14 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 // General Public License for more details.
17 // You should have received a copy of the GNU General Public License
18 // along with this program; if not, write to the Free Software
19 // Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
22 // (Log is kept at end of this file)
29 #include <FDM/flight.hxx>
30 #include <Aircraft/aircraft.hxx>
31 #include <Controls/controls.hxx>
32 #include <Include/fg_constants.h>
35 // reset flight params to a specific position
36 void fgSlewInit(double pos_x, double pos_y, double pos_z, double heading) {
39 f = current_aircraft.fdm_state;
63 // update position based on inputs, positions, velocities, etc.
64 void fgSlewUpdate( void ) {
68 f = current_aircraft.fdm_state;
69 c = current_aircraft.controls;
71 /* f->Psi += ( c->aileron / 8 );
72 if ( f->Psi > FG_2PI ) {
74 } else if ( f->Psi < 0 ) {
80 f->pos_x = f->pos_x + (cos(f->Psi) * f->vel_x);
81 f->pos_y = f->pos_y + (sin(f->Psi) * f->vel_x); */
86 // Revision 1.6 1999/02/05 21:29:05 curt
87 // Modifications to incorporate Jon S. Berndts flight model code.
89 // Revision 1.5 1999/02/01 21:33:33 curt
90 // Renamed FlightGear/Simulator/Flight to FlightGear/Simulator/FDM since
91 // Jon accepted my offer to do this and thought it was a good idea.
93 // Revision 1.4 1998/12/05 16:13:14 curt
94 // Renamed class fgCONTROLS to class FGControls.
96 // Revision 1.3 1998/12/05 15:54:16 curt
97 // Renamed class fgFLIGHT to class FGState as per request by JSB.
99 // Revision 1.2 1998/10/17 01:34:17 curt
102 // Revision 1.1 1998/10/16 23:27:50 curt
105 // Revision 1.13 1998/04/25 22:06:29 curt
106 // Edited cvs log messages in source files ... bad bad bad!
108 // Revision 1.12 1998/04/08 23:35:30 curt
109 // Tweaks to Gnu automake/autoconf system.
111 // Revision 1.11 1998/02/07 15:29:39 curt
112 // Incorporated HUD changes and struct/typedef changes from Charlie Hotchkiss
113 // <chotchkiss@namg.us.anritsu.com>
115 // Revision 1.10 1998/01/27 00:47:53 curt
116 // Incorporated Paul Bleisch's <pbleisch@acm.org> new debug message
117 // system and commandline/config file processing code.
119 // Revision 1.9 1998/01/19 19:27:06 curt
120 // Merged in make system changes from Bob Kuehne <rpk@sgi.com>
121 // This should simplify things tremendously.
123 // Revision 1.8 1998/01/19 18:40:30 curt
124 // Tons of little changes to clean up the code and to remove fatal errors
125 // when building with the c++ compiler.
127 // Revision 1.7 1997/12/15 23:54:42 curt
128 // Add xgl wrappers for debugging.
129 // Generate terrain normals on the fly.
131 // Revision 1.6 1997/08/27 03:30:11 curt
132 // Changed naming scheme of basic shared structures.
134 // Revision 1.5 1997/07/19 22:35:06 curt
135 // Moved fiddled with PI to avoid compiler warnings.
137 // Revision 1.4 1997/06/21 17:12:51 curt
138 // Capitalized subdirectory names.
140 // Revision 1.3 1997/05/29 22:40:00 curt
141 // Working on incorporating the LaRCsim flight model.
143 // Revision 1.2 1997/05/29 12:30:19 curt
144 // Some initial mods to work better in a timer environment.
146 // Revision 1.1 1997/05/29 02:29:42 curt
147 // Moved to their own directory.
149 // Revision 1.2 1997/05/23 15:40:37 curt
150 // Added GNU copyright headers.
152 // Revision 1.1 1997/05/16 16:04:45 curt