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Don't crash with UFO FDM, etc, or other FDMs that don't define global props needed - just go into passive mode.

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jmt 2009-09-21 16:26:07 +00:00 committed by Tim Moore
parent 263ff7d93d
commit 289023da1d
1 changed files with 14 additions and 5 deletions
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19
src/Autopilot/autobrake.cxx
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@ -107,6 +107,20 @@ void FGAutoBrake::unbind()
void FGAutoBrake::update(double dt)
{
_leftBrakeInput = SGMiscd::max(_brakeInputs[0]->getDoubleValue(),
_brakeInputs[2]->getDoubleValue());
_rightBrakeInput = SGMiscd::max(_brakeInputs[1]->getDoubleValue(),
_brakeInputs[3]->getDoubleValue());
// various FDMs don't supply sufficent information for us to work,
// so just be passive in those cases.
if (!_weightOnWheelsNode || !_groundspeedNode || !_engineControlsNode) {
// pass the values straight through
_leftBrakeOutput = _leftBrakeInput;
_rightBrakeOutput = _rightBrakeInput;
return;
}
if (dt <= 0.0) {
return; // paused
}
@ -115,11 +129,6 @@ void FGAutoBrake::update(double dt)
_actualDecel = (_lastGroundspeedKts - gs) / dt;
_lastGroundspeedKts = gs;
_leftBrakeInput = SGMiscd::max(_brakeInputs[0]->getDoubleValue(),
_brakeInputs[2]->getDoubleValue());
_rightBrakeInput = SGMiscd::max(_brakeInputs[1]->getDoubleValue(),
_brakeInputs[3]->getDoubleValue());
if (!_armed || (_step == 0)) {
// even if we're off or disarmed, the physical valve system must pass
// pilot control values through.