1 // controls.hxx -- defines a standard interface to all flight sim controls
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 <Include/fg_limits.h>
33 # error This library requires C++
37 // Define a structure containing the control parameters
43 static const int FG_ALL_ENGINES = -1;
44 static const int FG_MAX_ENGINES = 10;
46 static const int FG_ALL_WHEELS = -1;
47 static const int FG_MAX_WHEELS = 3;
55 double throttle[FG_MAX_ENGINES];
56 double brake[FG_MAX_WHEELS];
64 inline double get_aileron() const { return aileron; }
65 inline double get_elevator() const { return elevator; }
66 inline double get_elevator_trim() const { return elevator_trim; }
67 inline double get_rudder() const { return rudder; }
68 inline double get_throttle(int engine) const { return throttle[engine]; }
69 inline double get_brake(int wheel) const { return brake[wheel]; }
72 inline void set_aileron( double pos ) {
74 if ( aileron < -1.0 ) aileron = -1.0;
75 if ( aileron > 1.0 ) aileron = 1.0;
77 inline void move_aileron( double amt ) {
79 if ( aileron < -1.0 ) aileron = -1.0;
80 if ( aileron > 1.0 ) aileron = 1.0;
82 inline void set_elevator( double pos ) {
84 if ( elevator < -1.0 ) elevator = -1.0;
85 if ( elevator > 1.0 ) elevator = 1.0;
87 inline void move_elevator( double amt ) {
89 if ( elevator < -1.0 ) elevator = -1.0;
90 if ( elevator > 1.0 ) elevator = 1.0;
92 inline void set_elevator_trim( double pos ) {
94 if ( elevator_trim < -1.0 ) elevator_trim = -1.0;
95 if ( elevator_trim > 1.0 ) elevator_trim = 1.0;
97 inline void move_elevator_trim( double amt ) {
99 if ( elevator_trim < -1.0 ) elevator_trim = -1.0;
100 if ( elevator_trim > 1.0 ) elevator_trim = 1.0;
102 inline void set_rudder( double pos ) {
104 if ( rudder < -1.0 ) rudder = -1.0;
105 if ( rudder > 1.0 ) rudder = 1.0;
107 inline void move_rudder( double amt ) {
109 if ( rudder < -1.0 ) rudder = -1.0;
110 if ( rudder > 1.0 ) rudder = 1.0;
112 inline void set_throttle( int engine, double pos ) {
113 if ( engine == FG_ALL_ENGINES ) {
114 for ( int i = 0; i < FG_MAX_ENGINES; i++ ) {
116 if ( throttle[i] < 0.0 ) throttle[i] = 0.0;
117 if ( throttle[i] > 1.0 ) throttle[i] = 1.0;
120 if ( (engine >= 0) && (engine < FG_MAX_ENGINES) ) {
121 throttle[engine] = pos;
122 if ( throttle[engine] < 0.0 ) throttle[engine] = 0.0;
123 if ( throttle[engine] > 1.0 ) throttle[engine] = 1.0;
127 inline void move_throttle( int engine, double amt ) {
128 if ( engine == FG_ALL_ENGINES ) {
129 for ( int i = 0; i < FG_MAX_ENGINES; i++ ) {
131 if ( throttle[i] < 0.0 ) throttle[i] = 0.0;
132 if ( throttle[i] > 1.0 ) throttle[i] = 1.0;
135 if ( (engine >= 0) && (engine < FG_MAX_ENGINES) ) {
136 throttle[engine] += amt;
137 if ( throttle[engine] < 0.0 ) throttle[engine] = 0.0;
138 if ( throttle[engine] > 1.0 ) throttle[engine] = 1.0;
142 inline void set_brake( int wheel, double pos ) {
143 if ( wheel == FG_ALL_WHEELS ) {
144 for ( int i = 0; i < FG_MAX_WHEELS; i++ ) {
146 if ( brake[i] < 0.0 ) brake[i] = 0.0;
147 if ( brake[i] > 1.0 ) brake[i] = 1.0;
150 if ( (wheel >= 0) && (wheel < FG_MAX_WHEELS) ) {
152 if ( brake[wheel] < 0.0 ) brake[wheel] = 0.0;
153 if ( brake[wheel] > 1.0 ) brake[wheel] = 1.0;
157 inline void move_brake( int wheel, double amt ) {
158 if ( wheel == FG_ALL_WHEELS ) {
159 for ( int i = 0; i < FG_MAX_WHEELS; i++ ) {
161 if ( brake[i] < 0.0 ) brake[i] = 0.0;
162 if ( brake[i] > 1.0 ) brake[i] = 1.0;
165 if ( (wheel >= 0) && (wheel < FG_MAX_WHEELS) ) {
167 if ( brake[wheel] < 0.0 ) brake[wheel] = 0.0;
168 if ( brake[wheel] > 1.0 ) brake[wheel] = 1.0;
176 #define FG_Elevator c->elevator
177 #define FG_Aileron c->aileron
178 #define FG_Rudder c->rudder
179 #define FG_Throttle c->throttle
180 #define FG_Throttle_All -1
181 #define FG_Elev_Trim c->elevator_trim
182 #define FG_Brake_Amt c->brake_amt
185 extern fgCONTROLS controls;
188 void fgControlsInit( void );
189 void fgElevMove(double amt);
190 void fgElevSet(double pos);
191 void fgElevTrimMove(double amt);
192 void fgElevTrimSet(double pos);
193 void fgAileronMove(double amt);
194 void fgAileronSet(double pos);
195 void fgRudderMove(double amt);
196 void fgRudderSet(double pos);
197 void fgThrottleMove(int engine, double amt);
198 void fgThrottleSet(int engine, double pos);
199 void fgBrakeSet( double brake_amt );
200 double fgBrakeGet( void );
203 #endif // _CONTROLS_HXX
207 // Revision 1.2 1998/10/25 14:08:42 curt
208 // Turned "struct fgCONTROLS" into a class, with inlined accessor functions.
210 // Revision 1.1 1998/10/18 01:51:07 curt
213 // Revision 1.17 1998/09/29 14:57:00 curt
214 // c++-ified some comments.
216 // Revision 1.16 1998/09/29 02:01:32 curt
219 // Revision 1.15 1998/04/25 22:06:27 curt
220 // Edited cvs log messages in source files ... bad bad bad!
222 // Revision 1.14 1998/04/22 13:26:19 curt
223 // C++ - ifing the code a bit.
225 // Revision 1.13 1998/04/21 17:02:35 curt
226 // Prepairing for C++ integration.
228 // Revision 1.12 1998/02/09 22:56:48 curt
229 // Removed "depend" files from cvs control. Other minor make tweaks.
231 // Revision 1.11 1998/02/07 15:29:36 curt
232 // Incorporated HUD changes and struct/typedef changes from Charlie Hotchkiss
233 // <chotchkiss@namg.us.anritsu.com>
235 // Revision 1.10 1998/01/27 00:47:52 curt
236 // Incorporated Paul Bleisch's <pbleisch@acm.org> new debug message
237 // system and commandline/config file processing code.
239 // Revision 1.9 1998/01/22 02:59:31 curt
240 // Changed #ifdef FILE_H to #ifdef _FILE_H
242 // Revision 1.8 1998/01/19 18:40:22 curt
243 // Tons of little changes to clean up the code and to remove fatal errors
244 // when building with the c++ compiler.
246 // Revision 1.7 1997/12/15 23:54:36 curt
247 // Add xgl wrappers for debugging.
248 // Generate terrain normals on the fly.
250 // Revision 1.6 1997/12/10 22:37:41 curt
251 // Prepended "fg" on the name of all global structures that didn't have it yet.
252 // i.e. "struct WEATHER {}" became "struct fgWEATHER {}"
254 // Revision 1.5 1997/08/27 03:30:02 curt
255 // Changed naming scheme of basic shared structures.
257 // Revision 1.4 1997/07/23 21:52:18 curt
258 // Put comments around the text after an #endif for increased portability.
260 // Revision 1.3 1997/05/31 19:16:27 curt
261 // Elevator trim added.
263 // Revision 1.2 1997/05/23 15:40:33 curt
264 // Added GNU copyright headers.
266 // Revision 1.1 1997/05/16 15:59:48 curt