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Added a patch contributed by david@megginson.com for mouse yoke control.

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curt 1999-08-10 03:43:05 +00:00
parent b645c8cf7e
commit 06ee5a4f0a
1 changed files with 69 additions and 6 deletions
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75
src/GUI/gui.cxx
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@ -116,24 +116,87 @@ static int last_buttons = 0 ;
static int mouse_active = 0;
static int menu_on = 0;
/* --------------------------------------------------------------------
Support for mouse as control yoke (david@megginson.com)
- right button toggles between pointer and yoke
- horizontal drag with no buttons moves ailerons
- vertical drag with no buttons moves elevators
- horizontal drag with left button moves brakes (left=on)
- vertical drag with left button moves throttle (up=more)
- horizontal drag with middle button moves rudder
- vertical drag with middle button moves trim
For the *_sensitivity variables, a lower number means more sensitive.
TODO: figure out how to keep pointer from leaving window in yoke mode.
TODO: add thresholds and null zones
TODO: sensitivity should be configurable at user option.
TODO: allow differential braking (this will be useful if FlightGear
ever supports tail-draggers like the DC-3)
---------------------------------------------------------------------*/
static int mouse_yoke = 0;
static float aileron_sensitivity = 500.0;
static float elevator_sensitivity = 500.0;
static float brake_sensitivity = 250.0;
static float throttle_sensitivity = 250.0;
static float rudder_sensitivity = 500.0;
static float trim_sensitivity = 1000.0;
void guiMotionFunc ( int x, int y )
{
if (mouse_yoke) {
if (last_buttons & (1 << GLUT_LEFT_BUTTON)) {
float brake_offset = (_mX - x) / brake_sensitivity;
float throttle_offset = (_mY - y) / throttle_sensitivity;
controls.move_brake(FGControls::ALL_WHEELS, brake_offset);
controls.move_throttle(FGControls::ALL_ENGINES, throttle_offset);
} else if (last_buttons & (1 << GLUT_MIDDLE_BUTTON)) {
float rudder_offset = (x - _mX) / rudder_sensitivity;
float trim_offset = (_mY - y) / trim_sensitivity;
controls.move_rudder(rudder_offset);
controls.move_elevator_trim(trim_offset);
} else {
float aileron_offset = (x - _mX) / aileron_sensitivity;
float elevator_offset = (_mY - y) / elevator_sensitivity;
controls.move_aileron(aileron_offset);
controls.move_elevator(elevator_offset);
}
} else {
puMouse ( x, y ) ;
glutPostRedisplay () ;
}
_mX = x;
_mY = y;
puMouse ( x, y ) ;
glutPostRedisplay () ;
}
void guiMouseFunc(int button, int updown, int x, int y)
{
// Toggle mouse as pointer or yoke
if (updown == GLUT_DOWN && (button & GLUT_RIGHT_BUTTON)) {
FG_LOG( FG_INPUT, FG_INFO, "Toggling mouse as yoke" );
mouse_yoke = !mouse_yoke;
if (mouse_yoke) {
FG_LOG( FG_INPUT, FG_INFO, "Mouse in yoke mode" );
glutSetCursor(GLUT_CURSOR_NONE);
} else {
glutSetCursor(GLUT_CURSOR_INHERIT);
FG_LOG( FG_INPUT, FG_INFO, "Mouse in pointer mode" );
}
}
_mX = x;
_mY = y;
if ( updown == PU_DOWN )
if ( updown == PU_DOWN ) {
last_buttons |= ( 1 << button ) ;
else
} else {
last_buttons &= ~( 1 << button ) ;
puMouse (button, updown, x,y);
glutPostRedisplay ();
}
if (!mouse_yoke) {
puMouse (button, updown, x,y);
glutPostRedisplay ();
}
}
int guiGetMouseButton(void)