185 lines
5 KiB
C++
185 lines
5 KiB
C++
// controls.hxx -- defines a standard interface to all flight sim controls
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//
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// Written by Curtis Olson, started May 1997.
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//
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// Copyright (C) 1997 Curtis L. Olson - curt@infoplane.com
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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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#ifndef _CONTROLS_HXX
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#define _CONTROLS_HXX
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#ifndef __cplusplus
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# error This library requires C++
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#endif
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// Define a structure containing the control parameters
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class FGControls {
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public:
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enum
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{
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ALL_ENGINES = -1,
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MAX_ENGINES = 10
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};
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enum
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{
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ALL_WHEELS = -1,
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MAX_WHEELS = 3
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};
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private:
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double aileron;
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double elevator;
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double elevator_trim;
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double rudder;
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double throttle[MAX_ENGINES];
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double brake[MAX_WHEELS];
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public:
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FGControls();
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~FGControls();
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// Reset function
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void reset_all(void);
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// Query functions
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inline double get_aileron() const { return aileron; }
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inline double get_elevator() const { return elevator; }
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inline double get_elevator_trim() const { return elevator_trim; }
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inline double get_rudder() const { return rudder; }
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inline double get_throttle(int engine) const { return throttle[engine]; }
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inline double get_brake(int wheel) const { return brake[wheel]; }
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// Update functions
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inline void set_aileron( double pos ) {
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aileron = pos;
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if ( aileron < -1.0 ) aileron = -1.0;
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if ( aileron > 1.0 ) aileron = 1.0;
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}
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inline void move_aileron( double amt ) {
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aileron += amt;
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if ( aileron < -1.0 ) aileron = -1.0;
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if ( aileron > 1.0 ) aileron = 1.0;
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}
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inline void set_elevator( double pos ) {
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elevator = pos;
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if ( elevator < -1.0 ) elevator = -1.0;
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if ( elevator > 1.0 ) elevator = 1.0;
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}
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inline void move_elevator( double amt ) {
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elevator += amt;
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if ( elevator < -1.0 ) elevator = -1.0;
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if ( elevator > 1.0 ) elevator = 1.0;
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}
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inline void set_elevator_trim( double pos ) {
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elevator_trim = pos;
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if ( elevator_trim < -1.0 ) elevator_trim = -1.0;
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if ( elevator_trim > 1.0 ) elevator_trim = 1.0;
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}
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inline void move_elevator_trim( double amt ) {
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elevator_trim += amt;
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if ( elevator_trim < -1.0 ) elevator_trim = -1.0;
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if ( elevator_trim > 1.0 ) elevator_trim = 1.0;
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}
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inline void set_rudder( double pos ) {
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rudder = pos;
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if ( rudder < -1.0 ) rudder = -1.0;
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if ( rudder > 1.0 ) rudder = 1.0;
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}
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inline void move_rudder( double amt ) {
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rudder += amt;
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if ( rudder < -1.0 ) rudder = -1.0;
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if ( rudder > 1.0 ) rudder = 1.0;
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}
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inline void set_throttle( int engine, double pos ) {
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if ( engine == ALL_ENGINES ) {
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for ( int i = 0; i < MAX_ENGINES; i++ ) {
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throttle[i] = pos;
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if ( throttle[i] < 0.0 ) throttle[i] = 0.0;
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if ( throttle[i] > 1.0 ) throttle[i] = 1.0;
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}
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} else {
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if ( (engine >= 0) && (engine < MAX_ENGINES) ) {
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throttle[engine] = pos;
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if ( throttle[engine] < 0.0 ) throttle[engine] = 0.0;
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if ( throttle[engine] > 1.0 ) throttle[engine] = 1.0;
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}
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}
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}
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inline void move_throttle( int engine, double amt ) {
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if ( engine == ALL_ENGINES ) {
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for ( int i = 0; i < MAX_ENGINES; i++ ) {
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throttle[i] += amt;
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if ( throttle[i] < 0.0 ) throttle[i] = 0.0;
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if ( throttle[i] > 1.0 ) throttle[i] = 1.0;
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}
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} else {
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if ( (engine >= 0) && (engine < MAX_ENGINES) ) {
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throttle[engine] += amt;
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if ( throttle[engine] < 0.0 ) throttle[engine] = 0.0;
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if ( throttle[engine] > 1.0 ) throttle[engine] = 1.0;
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}
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}
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}
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inline void set_brake( int wheel, double pos ) {
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if ( wheel == ALL_WHEELS ) {
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for ( int i = 0; i < MAX_WHEELS; i++ ) {
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brake[i] = pos;
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if ( brake[i] < 0.0 ) brake[i] = 0.0;
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if ( brake[i] > 1.0 ) brake[i] = 1.0;
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}
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} else {
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if ( (wheel >= 0) && (wheel < MAX_WHEELS) ) {
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brake[wheel] = pos;
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if ( brake[wheel] < 0.0 ) brake[wheel] = 0.0;
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if ( brake[wheel] > 1.0 ) brake[wheel] = 1.0;
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}
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}
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}
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inline void move_brake( int wheel, double amt ) {
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if ( wheel == ALL_WHEELS ) {
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for ( int i = 0; i < MAX_WHEELS; i++ ) {
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brake[i] += amt;
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if ( brake[i] < 0.0 ) brake[i] = 0.0;
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if ( brake[i] > 1.0 ) brake[i] = 1.0;
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}
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} else {
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if ( (wheel >= 0) && (wheel < MAX_WHEELS) ) {
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brake[wheel] += amt;
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if ( brake[wheel] < 0.0 ) brake[wheel] = 0.0;
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if ( brake[wheel] > 1.0 ) brake[wheel] = 1.0;
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}
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}
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}
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};
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extern FGControls controls;
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#endif // _CONTROLS_HXX
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