1 /**************************************************************************
2 * controls.c -- defines a standard interface to all flight sim controls
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 **************************************************************************/
27 #include <Controls/controls.h>
28 #include <Aircraft/aircraft.h>
31 fgCONTROLS cur_control_params;
34 void fgControlsInit( void ) {
37 c = current_aircraft.controls;
40 FG_Elev_Trim = 1.969572E-03;
44 for ( i = 0; i < FG_MAX_ENGINES; i++ ) {
52 void fgElevMove(double amt) {
54 c = current_aircraft.controls;
58 if ( FG_Elevator < -1.0 ) FG_Elevator = -1.0;
59 if ( FG_Elevator > 1.0 ) FG_Elevator = 1.0;
62 void fgElevSet(double pos) {
64 c = current_aircraft.controls;
68 if ( FG_Elevator < -1.0 ) FG_Elevator = -1.0;
69 if ( FG_Elevator > 1.0 ) FG_Elevator = 1.0;
72 void fgElevTrimMove(double amt) {
74 c = current_aircraft.controls;
78 if ( FG_Elev_Trim < -1.0 ) FG_Elev_Trim = -1.0;
79 if ( FG_Elev_Trim > 1.0 ) FG_Elev_Trim = 1.0;
82 void fgElevTrimSet(double pos) {
84 c = current_aircraft.controls;
88 if ( FG_Elev_Trim < -1.0 ) FG_Elev_Trim = -1.0;
89 if ( FG_Elev_Trim > 1.0 ) FG_Elev_Trim = 1.0;
92 void fgAileronMove(double amt) {
94 c = current_aircraft.controls;
98 if ( FG_Aileron < -1.0 ) FG_Aileron = -1.0;
99 if ( FG_Aileron > 1.0 ) FG_Aileron = 1.0;
102 void fgAileronSet(double pos) {
104 c = current_aircraft.controls;
108 if ( FG_Aileron < -1.0 ) FG_Aileron = -1.0;
109 if ( FG_Aileron > 1.0 ) FG_Aileron = 1.0;
112 void fgRudderMove(double amt) {
114 c = current_aircraft.controls;
118 if ( FG_Rudder < -1.0 ) FG_Rudder = -1.0;
119 if ( FG_Rudder > 1.0 ) FG_Rudder = 1.0;
122 void fgRudderSet(double pos) {
124 c = current_aircraft.controls;
128 if ( FG_Rudder < -1.0 ) FG_Rudder = -1.0;
129 if ( FG_Rudder > 1.0 ) FG_Rudder = 1.0;
132 void fgThrottleMove(int engine, double amt) {
135 c = current_aircraft.controls;
137 if ( engine == FG_Throttle_All ) {
138 for ( i = 0; i < FG_MAX_ENGINES; i++ ) {
139 FG_Throttle[i] += amt;
140 if ( FG_Throttle[i] < 0.0 ) FG_Throttle[i] = 0.0;
141 if ( FG_Throttle[i] > 1.0 ) FG_Throttle[i] = 1.0;
144 if ( (engine >= 0) && (engine < FG_MAX_ENGINES) ) {
145 FG_Throttle[engine] += amt;
146 if ( FG_Throttle[engine] < 0.0 ) FG_Throttle[engine] = 0.0;
147 if ( FG_Throttle[engine] > 1.0 ) FG_Throttle[engine] = 1.0;
152 void fgThrottleSet(int engine, double pos) {
155 c = current_aircraft.controls;
157 if ( engine == FG_Throttle_All ) {
158 for ( i = 0; i < FG_MAX_ENGINES; i++ ) {
159 FG_Throttle[i] = pos;
160 if ( FG_Throttle[i] < 0.0 ) FG_Throttle[i] = 0.0;
161 if ( FG_Throttle[i] > 1.0 ) FG_Throttle[i] = 1.0;
164 if ( (engine >= 0) && (engine < FG_MAX_ENGINES) ) {
165 FG_Throttle[engine] = pos;
166 if ( FG_Throttle[engine] < 0.0 ) FG_Throttle[engine] = 0.0;
167 if ( FG_Throttle[engine] > 1.0 ) FG_Throttle[engine] = 1.0;
173 double fgBrakeGet( void ) {
175 c = current_aircraft.controls;
181 void fgBrakeSet( double brake_amt ) {
183 c = current_aircraft.controls;
185 FG_Brake_Amt = brake_amt;
190 /* Revision 1.8 1998/09/29 02:01:31 curt
193 * Revision 1.7 1998/02/07 15:29:36 curt
194 * Incorporated HUD changes and struct/typedef changes from Charlie Hotchkiss
195 * <chotchkiss@namg.us.anritsu.com>
197 * Revision 1.6 1998/01/19 19:27:02 curt
198 * Merged in make system changes from Bob Kuehne <rpk@sgi.com>
199 * This should simplify things tremendously.
201 * Revision 1.5 1998/01/19 18:40:22 curt
202 * Tons of little changes to clean up the code and to remove fatal errors
203 * when building with the c++ compiler.
205 * Revision 1.4 1997/12/10 22:37:41 curt
206 * Prepended "fg" on the name of all global structures that didn't have it yet.
207 * i.e. "struct WEATHER {}" became "struct fgWEATHER {}"
209 * Revision 1.3 1997/08/27 03:30:01 curt
210 * Changed naming scheme of basic shared structures.
212 * Revision 1.2 1997/06/21 17:12:48 curt
213 * Capitalized subdirectory names.
215 * Revision 1.1 1997/05/31 19:24:04 curt